Aisin Corporation (Formerly Aisin Seiki Co., Ltd.)

Company Profile



2-1 Asahi-machi, Kariya, Aichi 448-8650, Japan

Business Overview

-The Company is a major supplier of automotive parts and systems, supplying a huge volume of powertrains, automotive-safety devices/technologies, auto-body systems (doors, fronts, and seats), and connected sharing solutions.

-Major automotive products are listed below:

Business segment Products
Powertrain -Automatic transmissions
-Manual transmissions
-Hybrid transmissons
‐Electric 4WD (E-Four)
-Hybrid dampers
-Clutch discs/covers
-Electric water pumps
-Electric oil pumps
-Intake manifolds
-Exhaust manifolds
-Variable valve timing
Driving safety related -Brake master cylinders
-Disc brakes
-Anti-lock brake system(ABS)
-Electronic stability control(ESC)
-Regenerative braking systems
-Electronic brake force distribution(EBD)
-Electric parking brakes
-Active rear steering system
-Power tilt & telescopic steering column
-Motion control beam
-Driver monitoring system
-Automated parking system
Body related -Power sliding door system
-Power back door system
-Power seats
-Door frames
-Door locks
-Door handles
-Grill shutters
-Universal steps
-Active front spoilers
-Weight sensors
-Applied damping materials
CSS& Others -Car navigation system
‐Ride-sharing pickup service
‐Aftermarket products

-Breakdown of Company sales by product for the fiscal year that ended in March 2023: Powertrain 55.7%, Driving Safety 20.4%, Body 18.6%, Connected & Sharing Solutions (CSS) & Others 2.5%, Energy Solutions & Others 2.8%.

-In April 2021, Aisin Seiki and Aisin AW were merged, becoming Aisin.
>>>Link to business report on former Aisin AW
>>>Link to business report on former Aisin AI


‐From April 2022, the Company moved from the First Section of the Tokyo Stock Exchange to the Prime Market and from the First Section of the Nagoya Stock Exchange to the Premier Market (As of Mar. 31, 2023)
Name or Company Name Investment Ratio (%)
Toyota Motor Corp. 24.80
The Master Trust Bank of Japan, Ltd. (Trust Account) 9.89
Toyota Industries 7.68
Denso Corp. 4.81
Custody Bank of Japan, Ltd. 4.07
Aisin shareholding association 2.64
Nippon Life Insurance Company 2.33
Kochi Shinkin Bank 1.93
National Mutual Insurance Federation of Agricultural Cooperatives 1.27
Total 61.83





  • eAxle Offset Design (150kW) 
  • eAxle150kW (FWD)
  • eAxle 150kW
  • eAxle80kW(RWD)
  • Electric four-wheel drive systems
  • eAxle 9.2kW (RWD)

Hybrid Transmission


  • FF 1-motor hybrid transmission
  • FR Multi-stage Hybrid Transmissions
  • Medium torque capacity FR 2 Motor Hybrid Transmissions
  • Small torque capacity FF 2 Motor Hybrid Transmissions
  • Medium torque capacity FF 2 motor hybrid transmissions
  • High torque 2-motor RWD multistage hybrid transmissions
  • Medium torque FF 1-motor hybrid transmissions
  • High torque FR1-motor hybrid transmissions
  • High torque FF2-motor hybrid transmissions

Automatic Transmission


  • High torque capacity RWD 10-speed automatic transmissions
  • High torque capacity RWD 8-speed automatic transmissions
  • Medium torque capacity RWD 8-speed automatic transmissions
  • High torque capacity RWD 6-speed automatic transmissions
  • High torque capacity FWD 8-speed automatic transmissions
  • Medium torque capacity FWD 8-speed automatic transmissions
  • Medium torque capacity FWD 6-speed automatic transmissions
  • Small torque capacity FWD 6-speed automatic transmissions
  • Small torque capacity RWD 4-speed automatic transmissions
  • Small torque capacity FWD 4-speed automatic transmissions
  • RWD 6-speed automatic transmissions for light duty trucks & buses
  • RWD 5-speed automatic transmissions for medium duty trucks & buses
  • RWD 4-speed automatic transmissions with transfer for light duty trucks

Manual Transmission


  • High torque capacity FWD 6-speed manual transmissions
  • Medium torque capacity FWD 6-speed manual transmissions
  • High torque capacity RWD 6-speed manual transmissions
  • Medium torque capacity RWD 6-speed manual transmissions
  • Automated manual transmissions



  • Medium torque capacity CVT
  • Small torque capacity CVT



  • High torque capacity for RWD transfer case
  • Hybrid Transmissions for commercial vehicle
  • Clutch covers
  • Clutch discs
  • Clutch master cylinders
  • Concentric slave cylinders
  • 2WD-4WD motor shift actuators
  • Dampers for hybrid vehicles
  • Current sensors
  • Gas-liquid separators
  • Stack cases

-Aisin Takaoka

  • Aluminum die casting oil pump covers

-Aisin Chemical

  • High-µs wet friction materials for automatic transmission
  • High heat-resistance wet friction materials for automatic transmission
  • Non-solvent dry friction materials for manual transmission

Thermal management related


  • Electric water pumps for cooling battery
  • Electric water pumps for cooling inverter
  • Electric water pumps for cooling engine
  • Electric oil pump for idling stop
  • Electric oil pump for xEV cooling and lubrication
  • Flow Shutting Valve

Engine Related


  • Variable valve timings
  • Continuously variable capacity oil pump
  • Variable Intake manifolds
  • Variable intake manifolds with an integrated rotary valve, co-developed with MANN+HUMMEL
  • Water pumps
  • Cylinder head covers
  • Oil pans
  • Engine front modules; timing chain case with water pump and oil pump

Exhaust manifolds

-Aisin Takaoka

  • Exhaust manifold & converter



  • Continuously variable capacity oil pump


-Aisin Takaoka

  • Water pumps


  • Flow shutting valve

Engine related products

-ART Metal Manufacturing

  • Pistons


Driving safety related

Parking and driving assist


  • Automated parking system
  • Driver monitoring system
  • Autonomous emergency brake systems
  • Peripheral monitoring ECUs



  • Electronically controlled brake systems
  • Disc brake
  • Electric control brake systems
  • Brake assemblies
  • Electric parking brakes
  • Brake boosters & brake master cylinders with brake assist
  • ESC modulators


  • Brake pedal stroke sensors

Steering related products


  • Power tilt & telescopic steering columns with ECU
  • Active steering systems

Suspension related products


  • Damping force adjustment type absorber
  • Active rear steering system


  • Shift-by-wires



Door related products


  • Power slide door systems
  • Power back door systems
  • Power door locks
  • Universal steps
  • Slide door closers
  • Door hinges
  • Door checks
  • Outside door handles
  • Inside door handles
  • Door handles for smart key systems

-Aisin Takaoka

  • "Die quench" door beam

Shiroki Corporation

  • Door frames; aluminum
  • Frame moldings; stainless steel
  • Window regulators


Roof, exterior, and structural components

  • Sunroofs
  • Roof rails
  • Rear spoilers
  • Grille shutters
  • Center pillar garnishes
  • Bumper reinforcement aluminum extrusion
  • Rocker EA materials
  • Activefront spoilers

-Aisin Chemical

  • High performance spray damping coat
  • Structural adhesive
  • Waterborne anti-corrosion paint
  • Damping coats

-Aisin Takaoka

  • A-pillar reinforcement
  • "Die Quench" bumper reinforcement

-Aisin Keikinzoku

  • Crash box


Seat components

  • Pneumatic seat
  • Occupant weight sensing systems
  • Passenger detection sensors
  • Seat slide sensors for airbag control
  • Rear seat relaxation systems
  • Power retractable seats

Shiroki Corporation

  • Seat recliners
  • Power seats
  • Manual operated seats


Connected and sharing solution


  • Toyota・Lexus factory-installed connected navigation systems
  • ISUZU Map Locator ECU for Japan
  • Smart eco-drive function equipped car navigation system
  • Toyota Voice Car Navigation System
  • moviLink car navigation application system designed for Smartphones
  • Stellantis factory-installed navigation system for Japan market
  • Road-maintenance support service, Roadlog


Jun. 1949 Established Aichi Kogyo Co., Ltd. with capital of 15 million yen.
Jul. 1952 Aichi Kogyo Co. was listed on the Nagoya Stock Exchange.
Jun. 1953 Began manufacturing die-cast products.
Mar. 1960 Shinkawa Kogyo Co., Ltd. spun off its Casting Division and established Takaoka Kogyo Co., Ltd.(current Aisin Takaoka)
Aug. 1961 Started producing automotive transmissions at Aichi Kogyo Co., Ltd.
Oct. 1961 Aichi Kogyo was listed on the first section of the Nagoya Stock Exchange.
Aug. 1965 Aichi Kogyo acquired Shinkawa Kogyo (capital of 656 million yen) and changed the Company name to Aisin Seiki Co., Ltd. (capital of 2,856 million yen) The Company took over the operations of Shinkawa Plant (established in March 1945) and Shintoyo Plant (established in Aug.1961) from Shinkawa Kogyo accordingly.
May 1969 Established Aisin-Warner Ltd. (now Aisin AW Co., Ltd.) based on a joint-venture with BorgWarner.
May 1970 Was listed on the first section of both the Tokyo Stock Exchange and the Osaka Stock Exchange.
May 1970 Opened Fujioka Proving Ground
Oct. 1970 Established Aisin U.S.A., Inc.
Oct. 1971 Established Aisin Europe S.A.
Nov. 1972 Established Aisin (Australia) Pty., Ltd.
Mar. 1973 Capital investment in Liberty Mexicana S.A. DE C.V.
Jan. 1974 Established Aisin Do Brasil Com. E IND Ltda.
Aug. 1977 Established Aisin Asia Pte. Ltd.
Sep. 1979 Established Elite Sewing Machine Mfg. Co., Ltd.
Apr. 1985 Established Aisin Maintenance Co., Ltd.
Apr. 1985 Established Aisin Engineering Co., Ltd.
Jul. 1986 Established Institut Minoru De Recherche Avancee S.A. (IMRA Europe S.A. at present)
Jul. 1988 Established Aisin America, Inc.
Jul. 1988 Established Aisin U.S.A. Mfg., Inc.
Nov. 1988 Established Aisin Newhard Co., Ltd.
Feb.1990 Established Aisin Human Systemes Co., Ltd.
May 1990 Established IMRA America, Inc.
July 1991 Established Aisin AI Co., Ltd. (Separation of Shiroyama Plant)
Dec. 1991 Established Aisin Material R&D Co., Ltd. (IMRA Material R&D Co., Ltd. at present)
Mar. 1992 Established Aisin AW Precision Co., Ltd.
Aug. 1992 Established Aisin Tohoku Co., Ltd.
Oct. 1992 Established Aisin Cosmos R&D Co., Ltd.
Oct. 1992 Aisin U.S.A., Inc. and Aisin America Inc. were merged and Aisin World Corp. of America was established.
Dec. 1992 Opened Toyokoro Proving Ground
Apr.1993 Established Aisin Kyushu Co., Ltd.
Jun. 1995 Established Aisin Hongda Automobile Parts Co., Ltd.
Aug. 1995 Established PT. Aisin Inodonesia.
Apr. 1996 Established Tangshan Aisin Gear Co., Ltd.
May 1996 Established Aisin Electronics Inc.
Jul. 1996 Established Aisin Mexicana S.A. De C.V.
Aug. 1996 Established Brake System Comprehensive R&D Center
Oct. 1996 Established Aisin Drivetrain, Inc.
Nov. 1996 Established Aisin Automotive Casting, Inc.
Dec. 1996 Established Siam Aisin Co., Ltd.
Jul. 1997 Established Tianjin Aisin Automobile Parts Co., Ltd.
Jul. 1997 Obtained QS9000 and ISO9001 certification
Jan.1998 Established Aisin Europe Manufacturing (UK) Ltd.
Apr.1999 Obtained ISO14001 certification for all plants
Jul. 1999 Established Aisin NTTF Private Ltd.
Jan. 2001 Established Aisin Holdings of America, Inc. and Aisin World Corp. of America.
Jan. 2001 Established Aisin Personnel Service, Inc.
May 2001 Established Aisin Tianjin Body Parts Co., Ltd.
Jun. 2001 Zhejiang Aisin Elite Machinery and Electric Co., Ltd.
Jul. 2001 Established ADVICS Co. Ltd. as a joint venture among Denso, Sumitomo Electrics Industries, Toyota Motor, and the Company.
Oct. 2001 Established Aisin Brake & Chassis, Inc.
Oct. 2001 Established Aisin Mfg. Illinois, LLC.
Dec. 2001 Established Hangzhou Aisin INAX Machinery& Electric Co., Ltd.
Oct. 2002 Established Aisin Canada Inc.
Nov. 2002 Established Aisin Europe Manuacturing Czech s.r.o
Aug. 2003 Established Aisin Light Metals, LLC.
Feb. 2004 Established Aisin Automotive Casting Tennessee, Inc.
Apr. 2004 Established Aisin Seiki Foshan Automotive Parts Co., Ltd.
Apr. 2004 Established Aisin Electronics Illinois, LLC.
May 2004 Established Mfg. Aguascalientes, S.A. De C.V.
Aug. 2004 Established Otomotiv Parcalari Sanayi Ve Ticaret A. S.
Sep. 2004 Established Fengai (Guangzhou) Automotive Seat Parts Co., Ltd
Dec. 2004 Established Aisin Seiki Foshan Body Parts Co., Ltd.
Mar. 2005 Established Tangshang Aisin Automotive Parts Co., Ltd.
Oct. 2005 Established FT Techno of America, LLC
Nov. 2005 Established Tianjin Feng Ai Automotive Seat Parts Co., Ltd.
Jan. 2006 Established Aisin Chemical Indiana, LLC
Feb. 2006 Established Aisin Hokkaido Co., Ltd.
Apr. 2006 Established Kinuura plant
Oct. 2006 Established Aisin Mfg. California, LLC
Feb. 2007 Established Aisin Comcruise Co., Ltd.
Aug. 2007 Established Aisin Kyushu Casting Co., Ltd.
Sep. 2007 Established AS Brake Systems Inc.
Sep. 2007 Opened Production Engineering Center
Dec. 2007 Established Aisin Seiki (Tianjin)
Jul. 2008 Established Aisin Technical Center of America, Inc
Sep. 2008 Established Aisin Thai Automotive Casting Co., Ltd.
Apr. 2010 Kariya Plant was transferred to ADVICS Co., Ltd.
Jun. 2012 Acquired 33.4% of the stock shares in Hiji H-Tech Co., Ltd. that is engaged in the design, evaluation and testing of semi-conductor circuits.
May 2015 Signed a contract to transfer the seat structure business with Toyota Boshoku and Shiroki.
Apr. 2016 Turned Shiroki Corporation into a wholly owned subsidiary through a share exchange.
Feb. 2017 Acquired Art Metal Manufacturing Co., Ltd. through a stock acquisition, which became a subsidiary.
Apr. 2019 Subsidiaries Aisin AW Co. Ltd. and Aisin AI consolidated their management functions.
Nov. 2019 Established BluE Nexus, a joint-venture company with Denso Corporation, which is dedicated to develop and sell drivetrain modules in response to the growth in automotive electrification.
Apr. 2021 The business operations of Aisin AW were merged into Aisin Corporation.
Apr. 2022 Moved from the First Section of the Tokyo Stock Exchange to the Prime Market. Moved from the First Section to the Premier Market of theNagoya Stock Exchange.

Supplemental Information 1