Mitsui High-tec

Mitsui High-tec is a Japanese precision-manufacturing company headquartered in Kitakyushu, Fukuoka Prefecture. Its principal businesses are precision stamping dies, semiconductor lead frames, and laminated motor cores used in electric motors, including traction motors for hybrid and battery-electric vehicles. The company serves automotive, semiconductor, industrial-equipment, and electronics manufacturers through operations in Japan and subsidiaries in Asia, North America, and Europe. The business began on 12 January 1949 as Mitsui Manufacturing, established by Yoshiaki Mitsui and two former colleagues from Yaskawa Electric. Its original activity was the design and manufacture of stamping dies. The first workshop occupied approximately 10 square metres in the Kurosaki area of Yahata City, now part of Kitakyushu. A surface grinder developed in 1950 broadened the company's precision-machining capabilities, while the opening of the Komine headquarters in 1960 provided a larger base for expansion. A major turning point came after Yoshiaki Mitsui saw integrated-circuit lead frames during a 1961 visit to NASA facilities in California. At the time, these delicate semiconductor components were commonly made by photo-etching. Mitsui believed that tungsten-carbide stamping dies could provide a more productive alternative. After years of development, the company began lead-frame production in June 1969 and subsequently received an order from Texas Instruments. This innovation moved Mitsui beyond general toolmaking and established its position in semiconductor manufacturing equipment and components. The company also developed important technology for electric-motor production. In 1974 it introduced the Mitsui Automatic Core, or MAC, assembly system, which automated the stamping, stacking, and joining of thin electrical-steel laminations. In the same year, it developed an ultra-fast die that increased stamping speeds from roughly 300–400 strokes per minute to as many as 1,450 strokes per minute. These technologies reduced the time and cost required to manufacture laminated rotor and stator assemblies, which are fundamental parts of electric motors. As the semiconductor business expanded, IC-related production accounted for more than 70 percent of total output by the early 1980s. The company expanded its Komine plant in 1982 and changed its name from Mitsui Manufacturing to Mitsui High-tec on 8 May 1984. It was listed on the Fukuoka Stock Exchange on 3 September of that year. Despite the Mitsui name, the company is not affiliated with the Mitsui Group; its name derives from founder Yoshiaki Mitsui. The automotive business became increasingly important from the late 1990s. Beginning with the Toyota Prius in 1997, Mitsui High-tec developed precision dies and laminated motor-core technologies used in high-performance hybrid-vehicle traction motors. It later supplied other Japanese automakers, including Nissan and Honda. By 2012, the company was reported to be Toyota's primary supplier of laminated stacks, and a 2022 report attributed approximately 40 percent of the global motor-core market to Mitsui High-tec. Mitsui High-tec has expanded production close to automotive and electronics customers. It opened a motor-core plant in Brantford, Ontario, in 2017 to serve North American hybrid and electric-vehicle production. In 2019, it began operating its first European motor-core factory in Skarbimierz-Osiedle, Poland, selected partly for its proximity to Toyota facilities in Wałbrzych. Other overseas operations include subsidiaries in China, Malaysia, Mexico, Canada, and Europe. The company's stated culture emphasizes ultra-precision manufacturing and employee understanding of the difficulty of producing accurate components. New employees, including both factory and office personnel, take part in a mandatory 70-day die-making course. The program is intended to demonstrate the effort required to produce a flat and perpendicular workpiece and to connect that discipline with the quality of every manufactured part. Mitsui High-tec's current strategic identity is therefore built around high-precision tooling, semiconductor packaging components, and the electrification of vehicles.

Mitsui High-tec traces its origins to 12 January 1949, when Yoshiaki Mitsui established Mitsui Manufacturing in the Kurosaki area of Yahata City, now within Kitakyushu. Mitsui had previously worked as a die operator at Yaskawa Electric and founded the company with two former colleagues. The initial workshop was only about 10 square metres, and the business concentrated on making and selling stamping dies. The company expanded its technical base in 1950 by developing its first surface grinder. In October 1960 it opened its present headquarters in the Komine area of Yahata. A more consequential development followed Mitsui's 1961 visit to NASA facilities in California, where he encountered integrated-circuit lead frames. These thin, intricate components were then commonly produced by photo-etching. Mitsui pursued the possibility of manufacturing them through precision stamping using tungsten-carbide dies. After development work, lead-frame production began in June 1969. The company later secured an order from Texas Instruments, helping validate its stamping approach and establishing a second major business alongside die manufacturing. Semiconductor-related production became increasingly significant during the following decade. To support growth, Mitsui expanded the Komine plant in 1982. By then, IC-related output represented more than 70 percent of the company's total production, and Mitsui Manufacturing adopted the name Mitsui High-tec on 8 May 1984. The company was listed on the Fukuoka Stock Exchange on 3 September 1984. A parallel history developed in motor-core manufacturing. In 1974 Mitsui High-tec created the Mitsui Automatic Core assembly system, which automated the stamping, stacking, and joining of electrical-steel laminations. The company also introduced an ultra-fast die capable of up to 1,450 strokes per minute, compared with an earlier range of approximately 300–400 strokes per minute. These advances improved the productivity of rotor and stator stack production and created a technological foundation for later automotive applications. The shift toward vehicle electrification accelerated the importance of this business. Beginning with the Toyota Prius in 1997, Mitsui High-tec developed precision dies and laminated stacks for traction motors in hybrid vehicles. It subsequently worked with other Japanese automakers, including Nissan and Honda. By 2012 it was identified as Toyota's primary supplier of laminated stacks. The company's motor-core activities later benefited from the growth of hybrid and battery-electric vehicles; a 2022 report cited an estimated global market share of about 40 percent. International expansion followed customer demand. Mitsui High-tec opened a North American motor-core plant in Brantford, Ontario, in 2017, with the facility intended to supply hybrid and electric vehicles. Ontario's Jobs and Prosperity Fund committed up to C$2 million to the project. In 2019 the company began operations at its first European motor-core factory in Skarbimierz-Osiedle, Poland. The site was selected partly because of its proximity to Toyota plants in Wałbrzych. The company's international network also includes operations in China, Malaysia, Mexico, Canada, and Europe. Mitsui High-tec is sometimes mistakenly associated with the Mitsui Group because of its name. The company is independent of that group; its name comes from founder Yoshiaki Mitsui. Its corporate culture continues to emphasize hands-on precision skills. All new employees, including office personnel, undergo a 70-day die-making course designed to convey the difficulty of achieving a flat, perpendicular workpiece and the manufacturing discipline required for reliable components. The company slogan is translated as “ultra-precision technology to shape tomorrow.”

• 2019

  First European motor-core factory begins operations

  [1]Mitsui High-tecen.wikipedia.org

  The company starts operating its European motor-core plant in Skarbimierz-Osiedle, Poland.

• 2017

  North American motor-core production begins

  [1]Mitsui High-tecen.wikipedia.org

  Mitsui High-tec opens a Brantford, Ontario, factory serving North American hybrid and electric-vehicle production.

• 1997

  Traction-motor business enters hybrid vehicles

  [1]Mitsui High-tecen.wikipedia.org

  The company begins developing precision dies and laminated motor components associated with the Toyota Prius hybrid platform.

• 1984

  Company renamed and listed

  [1]Mitsui High-tecen.wikipedia.org

  Mitsui Manufacturing becomes Mitsui High-tec on 8 May and is listed on the Fukuoka Stock Exchange on 3 September.

• 1982

  Komine plant expanded

  [1]Mitsui High-tecen.wikipedia.org

  The company expands its Komine facility to accommodate growth in IC-related production.

• 1974

  Motor-core automation and high-speed dies introduced

  [1]Mitsui High-tecen.wikipedia.org

  The Mitsui Automatic Core system and an ultra-fast die improve the productivity of laminated rotor and stator production.

• 1969

  Lead-frame production begins

  [1]Mitsui High-tecen.wikipedia.org

  Mitsui begins commercial production of semiconductor lead frames and later receives an order from Texas Instruments.

• 1961

  Lead-frame opportunity identified

  [1]Mitsui High-tecen.wikipedia.org

  Yoshiaki Mitsui encounters IC lead frames during a NASA visit and begins pursuing a precision-stamping alternative to photo-etching.

• 1960

  Komine headquarters opens

  [1]Mitsui High-tecen.wikipedia.org

  The company opens its current headquarters in the Komine area of Kitakyushu.

• 1950

  First surface grinder developed

  [1]Mitsui High-tecen.wikipedia.org

  The company develops its first surface grinder, expanding its precision-machining capabilities.

• 1949

  Mitsui Manufacturing is founded

  [1]Mitsui High-tecen.wikipedia.org

  Yoshiaki Mitsui establishes Mitsui Manufacturing in Yahata City, beginning with stamping-die production.

Ultra-precision manufacturing for semiconductor packaging, electric motors, and vehicle electrification.

• Industrial tooling · 1949

  Precision stamping dies

  Precision stamping dies are the company's original product category and remain central to its manufacturing expertise. They are used to form thin metal parts accurately and repeatedly. Mitsui High-tec's tungsten-carbide die technology helped it move from general toolmaking into demanding semiconductor and automotive applications, while its high-speed die development improved the productivity of electrical-steel stamping.

• Semiconductor packaging components · 1969

  Semiconductor lead frames

  Lead frames are thin metal structures used in semiconductor packages to support and electrically connect integrated circuits. Mitsui High-tec began producing them in 1969 after developing a stamping-based alternative to photo-etching. The product became a major part of the company's business and helped establish its reputation as a precision supplier to the semiconductor industry.

• Electric-motor components · 1974

  Laminated motor cores

  Laminated motor cores are assembled from thin electrical-steel sheets stamped into rotor and stator components. They are designed to support efficient electric-motor operation and are especially important in traction motors for hybrid and battery-electric vehicles. Mitsui High-tec supplies motor-core products to automotive customers and has built production capacity in Japan, North America, and Europe.

• Motor-core manufacturing equipment · 1974

  Mitsui Automatic Core system

  The Mitsui Automatic Core, or MAC, system automates the stamping, stacking, and joining of electrical-steel laminations used to form motor cores. Introduced in 1974, it represented a process innovation that reduced manual handling and improved the speed and consistency of rotor and stator-stack production.

• 2019

  Establish a European motor-core production baseStrategy

  Background

  European automotive production and the growth of electrified vehicles increased the value of manufacturing close to vehicle and drivetrain plants.

  Action taken

  The company began operating its first European motor-core factory in Skarbimierz-Osiedle, Poland.

  Aftermath

  The plant strengthened Mitsui High-tec's European manufacturing footprint and was located near Toyota facilities in Wałbrzych.

  Source

• 2017

  Expand motor-core manufacturing in North AmericaStrategy

  Background

  Growing hybrid and electric-vehicle production created demand for locally supplied traction-motor components.

  Action taken

  Mitsui High-tec opened a motor-core factory in Brantford, Ontario.

  Aftermath

  The facility provided a regional production base for North American automotive customers and received up to C$2 million in support from Ontario's Jobs and Prosperity Fund.

  Ontario Jobs and Prosperity Fund investment. Up to C$2 million (2017 project)

  Source

• 1984

  Rename the company around high-technology manufacturingStrategy

  Background

  IC-related production had grown to more than 70 percent of total output, making the original Mitsui Manufacturing name less representative of the business.

  Action taken

  The company changed its name to Mitsui High-tec on 8 May 1984.

  Aftermath

  The new identity emphasized the company's transition from a general die maker to a precision supplier for semiconductors and advanced motor components.

  Source

1. 1Mitsui High-tecen.wikipedia.org