Aisin Seiki Co., Ltd., also known as Aisin, is a Japanese corporation that develops and produces components and systems for the automotive industry. Aisin is a Fortune Global 500 company, ranked 329 on the 2018 rankings. Aisin is 51% owned by the Toyota Group of companies. It is based in Anjō, near Nagoya, Japan. 

Aisin Seiki was founded in 1949 and supplies engine, drivetrain, body and chassis, aftermarket, and other main automotive parts for various major OEMs. In addition to partaking in the automotive markets, Aisin also offers life and amenity products (e.g. furniture and sewing machines), energy systems, welfare products, and other products/services.

Aisin AW is a major automotive technology manufacturer. Established in 1969, it developed the Prius transmission and the world's first speaking navigation system.

Aisin Seiki released the world‘s first voice navigation system with audio guide functions in 1992. 


According to en.wikipedia