Private company

Mabuchi Motor

Logo: Mabuchi Motor, Public domain, via Wikimedia Commons3

Japanese motor manufacturing company

Mabuchi Motor Company (マブチモーター株式会社, Mabuchi Mōtā Kabushiki Kaisha) is a Japanese manufacturing company based in Matsudo, Chiba Prefecture, Japan. It is the world's largest manufacturer by volume of small electric motors, producing over 1.4 billion motors annually. The company employs 24,286 people in its production division, 755 in its administrative division, 583 in its R&D division, and 219 in its sales division.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1954Founded1
Mabuchi-Motor-head office
Photo: Mayuno This photo was taken with Casio Exilim EX-Z1050, CC BY-SA 3.0, via Wikimedia Commons5

Mabuchi Motor Company (マブチモーター株式会社, Mabuchi Mōtā Kabushiki Kaisha) is a Japanese manufacturing company based in Matsudo, Chiba Prefecture, Japan. It is the world's largest manufacturer by volume of small electric motors, producing over 1.4 billion motors annually. The company employs 24,286 people in its production division, 755 in its administrative division, 583 in its R&D division, and 219 in its sales division.2

Corporate structure

Mabuchi Motor sits at the top of its group. 2 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

Built from subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

The story

1930s-1940s

As an elementary school student living in Takamatsu, Kagawa Prefecture in the 1930s, Kenichi Mabuchi, the son of a tin plate factory owner, enjoyed inventing things such as a homemade washing machine, bamboo toy guns, helicopters, and a model boat that ran on alcohol (and which exploded and burned him when he switched out the alcohol for gasoline). In junior high school, Kenichi won the 5th Shikoku Model Airplane Tournament, beating his adult competition by crafting the plane with the longest flight duration.

World War II

Kenichi's brother, Takaichi, was ten years younger, and loved making things with his older brother. Takaichi entered a technical junior high school, but on the night of July 3, 1945, Takaichi's school was destroyed in the firebombing of Takamatsu by US B-29 warplanes.

In order to survive food shortages, their father sold the family's factory and put the brothers to work in the fields. But Kenichi soon quit working on the farm. He gathered his friends and scoured the burned ruins for metal and copper wire to use in making simple DC motors as educational tools for use in elementary schools. This "School Motor" sold well, and in 1946 Kenichi Mabuchi founded Kansai Rika Kenkyusho, a scientific research institute.

First postwar motor

In the summer of 1947, after a company in Osaka copied the design of the school motor, Kenichi realized the value of patent applications, then went back to the drawing board and invented the world's first high performance, "horseshoe-shaped" magnetic DC motor. Takaichi turned 18, left the farm, and began working with Kenichi in sales.

1950s

In 1951, as Japanese wind-up toys lost credibility in the marketplace due to the introduction of power toys overseas, with exports dropping to 20% of the previous year, the Mabuchi brothers managed to secure a contract to supply the motor needs of a toy car manufacturer in Tokyo. Since their factory in Takamatsu was originally a sheet metal plant and had already reached capacity, Kenichi and Takaichi decided to relocate with 10 key employees and build a new factory in Tokyo, near their principal customer.

On January 18, 1954, using their patent for a new, smaller horseshoe-shaped motor as collateral to raise sufficient capital, the brothers established Tokyo Science Industrial Co., Ltd. for the production of small electric motors for toys and scientific apparatuses, with Kenichi Mabuchi as managing director and Takaichi Mabuchi as executive director. Takaichi soon had an idea for a new type of motor to power larger toys. Crafted from an alloy of iron, aluminum, and nickel, Takaichi's patented "alnico motor" proved more powerful than the one his older brother invented and just as easy to mass-produce.

Toy manufacturing

By August 1955, Japan Science and Industry Co., Ltd. was established as a joint venture with a major toy manufacturer, and an automatic armature coil winding apparatus was developed, thereby expanding production capacity to 30,000 motors per day. The machines were exceptionally loud but resulted in lower prices and cheaper toys for the children of Japan. But in September 1957, American newspapers reported that lead based paints were used on some toys imported from Japan. The Japanese toy industry was hit by a sharp drop in demand. The Mabuchi brothers, however, seized on this development as an opportunity to break away from their exclusive relationship with the toy manufacturer.

Exports

Export operations began in September 1957 with the creation of Mabuchi Shoji Co., Ltd. In the spring of 1958, Kenichi bought back his own company's shares and dissolved the joint venture with their toy producing customer. After dissolving Tokyo Science Industrial Co., Ltd. along with Japan Science and Industry Co., Ltd., Kenichi and Takaichi established Mabuchi Industrial Co., Ltd. The brothers worked together to refine their alnico motor by replacing the alnico magnet with a ferrite magnet, resulting in April 1958 in a utility model patent for a ferrite "F-type motor" with the same power of the alnico motor but at half the cost and weight. At 20 yen per motor, the Mabuchi brothers had matched the price of an old wind-up toy. The F-type motor became widely used in model cars.

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In March 1959, with the advent of portable, cordless tape recorders, the Mabuchi brothers changed the company's name to Tokyo Science Co., Ltd. and developed a small, quiet tape recorder motor with long life and low electricity consumption.

Audio equipment and timepieces

No longer satisfied with simply making motors for toys and determined to break into markets for high-tech consumer goods, Kenichi and Takaichi continually improved upon the F-type motor. They increased the precision of the shaft and improved the commutator and brush, reducing noise and power consumption to 10% of the original F-type motor and axis deviation to less than 10 microns, and extending lifespan by 50–100 times to 1,000–2,000 hours. In January 1960, the "FM-250 motor" was born, and, in April, high-precision "RM type" small electric motors were developed, leading Mabuchi into the audio equipment and timepiece markets.

By March 1962, the company opened a new factory in Tatebayashi, Gunma Prefecture, and achieved a daily production rate of 200,000 motors.

Slot cars

1963 saw the development of two of Mabuchi's most important motors. The first, released in April, was the FT, which became a popular choice for use in slot cars. The second major development, released in October, was the RS series. This motor put Mabuchi not only in the home appliance market but in the radio control market as well. RS motors like the RS 380 and RS 540 are still used today in car, boat and aircraft models. Also in October, in order to change the par value of its stock, Takamatsu Lumber Co., Ltd. (established 1926) was merged and the company name was changed to Tokyo Science Co., Ltd. At the same time, the headquarters was moved to Katsushika Ward in Tokyo.

Embezzlement of company funds

The Mabuchi brothers celebrated the tenth anniversary of Tokyo Science in late 1963 with a party at a restaurant in Akasaka, attended by over 1,000 company employees, as well as visitors from the toy industry, the financial sector, and the United States. After delivering the keynote address, Kenichi was approached by Takaichi who informed him of the results of an internal investigation. Certain people in upper management had secretly been adding extra charges to the costs of purchasing components. They pooled the money in a slush fund and used it to open another company. Kenichi was furious. He fired the ringleaders and asked anyone who knew about the theft and had failed to inform him to apologize straight away and promise to mend their ways. This scandal prompted the Mabuchi brothers to establish the Mabuchi management principle, "Contributing to international society and continuously increasing our contribution". An employee handbook was circulated, called "Purposes and Meanings of Company Business".

Production in Hong Kong

The Mabuchi brothers were also among the first Japanese executives to catch on to the international trend of developing production capacity overseas. Because a company in Hong Kong was making inferior quality copies of motors and selling them to British Commonwealth countries at low cost with the benefit of a preferential tariff, the Mabuchi brothers decided to build their own factory in Hong Kong and compete head to head. In February 1964, Mabuchi Industry Co., Ltd. was established in San Po Kong, Kowloon, Hong Kong.

Offices in US and Germany

In March 1965, Mabuchi moved its Japanese factory from a flood-prone area to a safe and large piece of land secured in Matsudo, Chiba (the current location of the corporate headquarters) just outside Tokyo. An American sales office was also opened in New York City. In April 1966, a compact, high-performance motor (RE type) went on the market, and in March of the following year, a submarine motor as a power source for toys and hobbies was also brought to market. Now the company was steadily growing, and by 1968, annual production had reached a volume of 100 million. In July that year, a new high-performance, low-cost motor (FA type) was introduced.

The European representative office was opened in Frankfurt, Germany, in October, 1968. In January 1969, with 100% financing from the parent company, Tohoku Mabuchi Co., Ltd. was established, increasing the capacity for processing components, and thus coping with a labor shortage (this subsidiary was moved to the city of Matsudo, and its name was changed first to Mabuchi Electric Industries Ltd. in July 1977, then to Mabuchi Finance in June 1989, before being liquidated in January 1998).

Production in Taiwan

Production expanded to Taiwan when new facilities were established there in December 1969 as Mabuchi Taiwan Co., Ltd. to form a motor supply network for the world market.

The "custom made" problem

By the dawn of the 1970s, Mabuchi had become one of the world's leading producers of original equipment motors for consumer electronics, toys and model aircraft. But a new problem arose: the "custom made" problem. Usually in the manufacturing industry, making small quantities of many products was the norm, in order to meet market needs. So Mabuchi was taking orders for motors with different specs from each customer and manufacturing motors customized to the client's specifications each time. When production volume was small, the company managed to handle it, but by the 1970s, volume had grown and it became hard to handle all those orders with slightly different specs. The company was oversupplied with a variety of machines and parts. From buying materials, gathering components, machining and assembly, to shipping the products, the production line grew disorderly and difficult to manage. Moreover, there was a time gap between production and the slack of business, with orders mainly centering on customers' Christmas sales campaigns. Because of this, the company had to hire extra seasonal workers every year before the holidays when the factories grew too busy and then discharge them when the period was over and production became slow.

Mabuchi called this the "custom made" problem because it could not keep a back stock of custom spec orders. Since the company had to make the custom motors after it received an order, it took considerable time to deliver. So if the customer had an unexpected hit product, Mabuchi would struggle to meet the sudden increased demand. If turn around time was not quick enough, clients would become upset because they missed a business opportunity and Mabuchi would be giving up potential profits as well. Additionally, when orders came in all at once, factory workers would have to work overtime and on their days off to meet deadlines. The rate of defective products would go up, as would quality control problems and customer complaints. And the defective motors would need to be replaced, increasing pressure on the delivery dates.

Product standardization

The solution was product standardization. Rather than make tiny changes to shaft length and the number of coils in what was essentially the same motor, the company began making several standard products with 5mm notched shafts, reducing the number of possible 1mm or 2mm variations and allowing Mabuchi to transition into a stock production system. Customers were given the option to continue buying custom motors according to their specifications or to buy standardized motors on an inventory sales basis for a 20% discount. Product quality and delivery speed were improved while cost and waste were reduced, such that by June 1971 over 80% of Mabuchi motors were standard products.

In March 1971, the company's name was changed from Tokyo Science to Mabuchi Motor Co. Ltd. Then, in July, a new headquarters building was completed and the corporate headquarters was moved to Matsudo. The FA-130 motor was introduced. At the same time, Mabuchi was in talks with a world-class manufacturer of electric shavers which had a demand for a special core motor with the close to the same efficiency as a coreless motor. The Mabuchi brothers developed the motor, model RD-180, and it was smaller and more responsive than the electric shaver company's previous motor. Takaichi Mabuchi quoted a price per unit of 100 yen and the shaver company representative tried to correct Takaichi's supposed "mistake" of leaving off a zero, thinking the RD-180 should cost at least 1,000 yen. But Takaichi was quite serious and sold the shaver motor for a tenth of the price the shaver company was willing to pay. In so doing, he secured a supply contract for all of the shaver company's motor needs.

Cheaper boomboxes

Next, tape recorders changed from open-reel to cassette tape, and in 1972 the radio cassette deck, or "boombox", was released; it became a popular for personal use mainly among young people. As far as Mabuchi Motor was concerned, the key part of a radio cassette deck was that it must be able to spin quietly and stably to produce quality sound. The rotation speed could not change even with changes in voltage, temperature or load. A regular DC motor would not suffice; instead, the company had to develop a new motor with the capability to adjust its speed, a "governor motor". In the past, the company's engineers had experimented with both types of governor motor, mechanical and electronic governors. But since it would be difficult to reduce the price of a mechanical governor, while electronic governors were growing cheaper all the time, Takaichi Mabuchi decided to proceed with an electronic governor.

By manufacturing Japanese designed electronic governor motors overseas in Hong Kong and Taiwan, Mabuchi Motor reduced the cost of boomboxes through mass production of the motors that operated their cassette tapes. In December 1972, Mabuchi's exporting arm, Mabuchi World Trade Co., Ltd. (formerly Mabuchi Shoji Co., Ltd.), was merged with the domestic sales (business) division. A sales (business) department was opened at the site of Mabuchi World Trade Co., Ltd. (Nihonbashi, Chuo Ward, Tokyo). In order to expand production at Mabuchi Taiwan Co., Ltd., in October 1973 a new factory was constructed and existing production facilities were modernized. In March 1974, as part of efforts to streamline business management, new, high-precision machine tools reflecting the latest technology were introduced and added to the machine tool division of the main factory. In addition, Mabuchi Precision Industries, Ltd. was established in Tatebayashi City, Gunma Prefecture for in-house production of motor shafts. An airplane motor went on the market in July as a new power source for model airplanes.

In March 1975, a motor with a built-in electronic governor went on the market, allowing the company to move into new markets for cassette tape recorders, home stereo equipment and other household electronics. The RF-510G was born. It sold for 400 yen, the same price as an outdated mechanical governor. At first, electronics companies were somewhat leery of working with a supplier that got its start making motors for toy cars. But one after another, brand name manufacturers chose the quality and price of the RF-510G, and the Mabuchi brothers helped bring affordable Japanese radio cassette decks, portable headphone stereo CD players, and numerous other products in the audio visual field, to consumers across the world.

ATMs and car mirrors

By being first to market with a completed product while rival motor manufacturers were still at the prototype stage, Mabuchi Motor built considerable goodwill in the consumer electronics industry. Then, in May, nickel-cadmium batteries were introduced onto the market, and Mabuchi responded by producing a fast-action battery charger for home use as a low-energy electric power source. By July, the sales department moved to the headquarters at Matsudo, and a comprehensive administration system encompassing production, sales, technology and financial operations was established. In September 1975, a geared motor went on the market, allowing Mabuchi to enter the vending machine market and other markets. Also that month, car mirror motors came on the scene, and the company fully entered into the automobile electrical equipment market.

In order to increase competitiveness in a fluctuating world economy, and to expand productive capacity, in July 1976, a new production facility was constructed in Tsuen Wan by Mabuchi Industry Co., Ltd. of Hong Kong. Then, in August, a new power system went on the market for electrically powered radio-controlled models by combining a high-powered motor and nickel-cadmium battery that can be quickly recharged. The New York representative office was closed in January 1977 and, instead, Mabuchi Motor America Corp. was established in New York City for sales and service operations to respond directly to local needs and to focus on developing new markets (in 1997, the US head office was moved to Detroit).

In March 1978, Mabuchi Taiwan Co., Ltd. constructed a new factory at Hukou. A third Taiwanese production facility, at Kaohsiung, was added in August 1979.

VCRs

In the early 1980s, Mabuchi entered both the VCR and battery-operated power tool markets. In 1980, a VCR motor was introduced to the market, and Mabuchi Motor fully entered the video equipment market. As a result, in December of that year, Mabuchi Motor Taiwan Ltd. enlarged its production facilities. In 1981, an electric drill motor emerged onto the market, and the company fully entered the industrial equipment market. Then, in August 1982, the Tateishi Factory of Mabuchi Electric Industries Ltd. was established in Katsushika Ward, Tokyo.

Portable CD players

From the start of the CD player era, Mabuchi Motor was selected by major Japanese and European audiovisual manufacturers to supply standardized CD player motors such as the RF-310TA and the RF-300CA. With their overwhelming product levels, the Mabuchi brothers secured a 90% share of the CD player business, spurring rival companies to surrender.

The audiovisual device field, and the precision instrument field, had a huge impact on the motor industry. In March 1984, Mabuchi Motor Taiwan Ltd. constructed a second factory. Then, in April, the corporate headquarters were moved to Matsudo, near Matsuhidai Station, halfway between Narita International Airport and downtown Tokyo on the Hokuso Line.

Initial public offering (IPO)

In July, Mabuchi Taiwan Co., Ltd. expanded its Hukou factory. That same month, through registration in the over-the-counter market, Mabuchi Motor initiated the public sale of its stock shares. By October, Mabuchi's Technical Center reached completion. In addition to concentrating research and development activities in a single facility and promoting technical information sharing, the center was equipped with high-tech research facilities.

The development of a heavy-duty printer motor in 1985 led to Mabuchi's entry into the office equipment market. In March 1986, the Guangdong factory of Mabuchi Industry Co., Ltd. in Guangdong, China, started processing and manufacturing activities on a commission basis. Mabuchi Motor went public on the Tokyo Stock Exchange in December 1986 and was listed as a member of the second section.

In March 1987, so as to grasp the tendencies and needs of the Singapore and ASEAN markets at top speed, a representative office was set up in Singapore. Then, in October, the first Chinese subsidiary company totally financed by Japanese enterprises, Mabuchi Motor Dalian Ltd., was established and the supply system for the world market was strengthened.

From Wikipedia’s article on Mabuchi Motor, shared under CC BY-SA 4.0.4

Products and brands

Manufacturing plants

Its factories are located in China (Dalian, Dongguan, Jiangsu, Yingtan, Jiangxi and Wafangdian), Vietnam (Biên Hòa and Danang), and Taiwan (Hsinchu and Kaohsiung). The company has 2 plants in Aguascalientes, Mexico (Mabuchi México SA de CV, est. 2014) The first plant is currently in operation and is planning to start operations at its third recently built plant, in this city, production is focused on the local, national and international automotive market.

Research and development facilities

Mabuchi Motor conducts research and development activities at its Technology Center in Inzai, Chiba, Japan, as well as its R&D Center in Dongguan, China.

Manufacturing and product lines

Mabuchi Motor currently manufactures small electric motors in 10 factories located in Asia, with an 11th factory in Mexico under construction. For 2015, the company anticipates 33.4% of its motors will be made in Vietnam Mabuchi, 18.8% in Daojiao Mabuchi, 14.1% in Danang Mabuchi, 13.3% in Wafangdian Mabuchi, 5.8% in Dalian Mabuchi, 4.8% in Dongguan Mabuchi, 3.6% in Yingtan Mabuchi, 3.3% in Jiangxi Mabuchi, 2.0% in Jiangsu Mabuchi, and 0.8% in Taiwan Mabuchi.

Recently, Mabuchi has accelerated the pace of R&D into higher-performance motors, especially for use in automotive applications. The trend toward electric cars means that new automobiles will require increasingly large numbers of small electric motors to support movement and control of a variety of automotive electrical equipment.

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Automotive products

An automotive products forecast of 67.3% of total motor sales is expected for 2015 year's end. Mabuchi Motor supplies automobile manufacturers with over a hundred variants of small DC motors for use in a variety of applications, such as:

Power window lifters (including model GD-558 RC/LC, a new generation power window motor achieving lower mass and weight reduction)

Power seats (including model RZ-46BWA, a low mass and high torque motor contributing to weight reduction of power seats)

Parking brakes (including model RS-656WA, a motor pursuing low vibration, long life and high rigidity)

Window washer pumps

Engine peripheral equipment (including model RS-4F5WA, a motor adapted for use in the extreme conditions of engine intake and exhaust systems)

Automatic cruise control

Sunroofs

Seat belt pretensioners

Steering column adjusters

Door closers

Lumbar supports

Door locks (including model FC-280SC, a standard motor for door lock actuators with a strong track record)

Car mirrors (including model SF-266SA, a motor achieving low mass and noise reduction, providing quieter operation of power folding mirrors)

Air conditioning damper actuators (including model SF-266SH, a motor achieving low mass and noise reduction, effective for use of multiple dampers)

Headlight level adjusters

Idle-speed controllers

Quarter vents

Active grille shutters

Steering locks

Trunk opener

Fuel-tank lid opener

Built-in car CD/DVD players

Consumer and industrial products

Sales of motors for consumer and industrial products is expected to comprise 32.7% of total motor sales by year-end 2015. Mabuchi Motor also supplies consumer goods manufacturers in a number of industries with motors used numerous types of finished products, such as:

Personal care products

Electric shavers

Electric tooth brushes

Hair dryers (including model RS-365SV, the latest model of Mabuchi's standard motor for dryers with an extensive track record)

Styling brushes

Hair removers

Hair clippers

Power tools

Impact wrenches

Screwdrivers

Drills (including model RZ-735VA, a motor with lighter weight, contributing to the lower mass of power tools)

Hedge trimmers

Circular saws

Lawn mowers

Health and wellness

Blood pressure meters (including model FF-M10VA, a motor providing small home healthcare equipment with low mass and high controllability)

Vibrators

Massagers

Bikes, toys and household goods

Electrically assisted bicycles (light electric vehicles)

Walking assists

Coffee makers

Small sprayers

Small pumps

Electric locks (including model FF-N20WA, a motor achieving low mass, high output, and quiet operation)

Vacuum cleaners

Room fresheners

Electric reels

Toys

Miniature models

Precision and office equipment

Ink jet printers (including model ID-529XW, a brushless motor achieving more energy conservation, quieter operation, and lighter weight)

Multi function printers (including model RK-370VB, a motor achieving low mass and higher output, contributing to the downsizing of office equipment)

Laser printers (including model RS-645VA, a motor achieving high controllability together with high torque and light weight, with optical encoder)

Vending machines (including model RK-370CA, the standard model widely usable for ejector and conveyor commodities, processing bills, coins, etc.)

Digital cameras

Photo printers

Audiovisual equipment

Car CD players

DVD players

Car navigation systems

Heads-up displays

Technical specifications

Mabuchi motors are designated by a seven-digit type code, followed by three to six digits designating the armature winding specifications. Motor housing is either flat, round or square. Housing length varies according to intended application. Brushes are either metal, precious metal or carbon in construction. The main types of magnet used are C-shape isotropic magnets, ring shape isotropic magnets, anisotropic or rare-earth magnets, or rubber magnets, with a magnet wire diameter ranging from 0.11mm to 1.1mm. Armature poles vary in number from 3 poles to 12 poles, while the number of turns of armature winding per slot can vary from figures of 2 to 4 digits.

Motor parts

A completed Mabuchi motor consists of 23 separate parts: endbell; shaft support; spacer; bearing; brush holder; terminal; damper; brush; oil stopper; varistor; commutator segment retainer; commutator segment; commutator core; insulating lamination; laminated core; magnet wire; more insulating lamination; shaft; rotor brush; another oil stopper; magnet; bearing; and, finally, the motor housing itself.

Theory behind motors

Each motor ships with a torque based performance chart showing the relationship between torque and speed, which is the most important performance indicator for a motor. The no-load speed is the number of rotations per minute of the motor shaft when voltage is applied between the terminals with no load to the motor. No-load current is the current discharged when voltage is applied between the terminals with no load to the motor. Stall torque is when the motor rotation stalls upon increasing the load to the rotating motor, while stall current is when the motor rotation stalls upon increasing the load to the rotating motor. The physics formula E = M (electrical energy input equals mechanical energy output) demonstrates the conservation of energy principle at work in a Mabuchi motor (voltage x current) divided by (efficiency expressed as a percentage) equals (speed in revolutions per minute x torque mN.m g.cm).

Factors affecting motor performance

Motor performance depends on three elements such as voltage across terminals, resistance across terminals, and magnetic force. These are influenced directly by such factors as voltage and type of power supply, number of turns per winding slot and diameter of magnetic wire, environmental temperature, type of magnet, flux yoke and

phase. If only the voltage of the power supply changes, the change in motor performance is in direct proportion to that change in voltage. Unlike the constant-voltage power supply, the power supply with resistance will have a voltage drop due to its internal resistance, causing the stall current and, therefore, the stall torque to drop with the speed line bottomed to the left.

The winding specifications affect motor performance the most. Changing the number of turns per slot or the diameter of magnet wire produces results that differ greatly from each other. Environmental temperature affects the magnetic forces of magnets and the winding resistance, and so indicates changes in motor performance. Changing anisotropic magnets from wet to dry results in decreasing stall torques and increasing no-load speed due to the magnetic force being weakened. Magnets are held in a housing for their full capability, while using a thin-wall housing will result in magnetic force leaking through the housing wall. That is where magnet yokes are used to prevent magnetic leakage, thus maintaining the full capacity of the magnets. Phase refers to positional relations between the center line of each polar magnet and the switching position of commutator segments and brushes. Lagging in phase causes inefficiency, electrical noise, and shortened life. To avoid these situations, improved motors are assembled with forward brush-shifting that offsets the armature reaction during load operation to keep them on neutral electrically.

From Wikipedia’s article on Mabuchi Motor, shared under CC BY-SA 4.0.4

Subsidiaries and ownership

Subsidiaries

From Wikidata.1

Timeline

  1. 1954Founded Founded1

Sources

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