Seat Temperature Control Technology (Seat Heaters & Seat Ventilation) Trends

Patent applications from Toyota Boshoku, Denso, and TS Tech



  This report created by MarkLines focuses on a number of recent technical topics surrounding the automotive industry and is based on patent information from the “Technology Information Distribution Service - swimy” obtained by the Toyota Technical Development Corporation (TTDC). The two business areas of TTDC are in the fields of intellectual property and measurement control solutions. The intellectual property (IP) side of TTDC is involved in the collection and analysis of information on automotive technology developments globally, and provides services such as consulting for research planning, applying for patents in foreign languages, and technical translation.

  Automobile seat temperature control technology, not only seat heaters, but new technologies such as seat ventilation has been increasingly adopted in recent years. In addition, as autonomous driving technology advances, seat temperature control technology is expected to become even more important for interior cabin comfort. The following is a summary of patent applications filed by various companies in Japan related to seat temperature control technology.

  From 2014 to 2018, the number of applications for seat temperature control technology in Japan has remained relatively unchanged at just under 100 yearly. In terms of the number of applications by applicant, Toyota Boshoku, Denso, TS Tech, Gentherm, and Tachi-S had the most. Next, in terms of the yearly trend in the number of application, Toyota Boshoku and Gentherm are on a downward trend, while Denso is trending upwards. An inventor analysis (*see text) reveals that the inventors with the highest scores for both ideas and networks are Fuminori Akaike of Toyota Boshoku, Yuichiro Hoshi of TS Tech, and Takao Fujii of Denso.


Source: Technical information distribution service - swimy URL:
This source (TTDC) has extensive content related to automobiles. Graphs can be created for contents of interest with a single click. The database also supports the detailed display and download of intellectual property related information.

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