Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
TK

Takehiro Kajihara — 15 Patents

NINgk Insulators: 12 patents #265 of 2,083Top 15%
Toyota: 3 patents #8,470 of 26,838Top 35%
Komaki, JP: #41 of 662 inventorsTop 7%
Overall (All Time): #307,048 of 4,157,543Top 8%
15 Patents All Time
Takehiro Kajihara has been granted 15 US patents while listed as an inventor at Ngk Insulators. The first was granted in 1983 and the most recent in January 2022. Takehiro Kajihara ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list Takehiro Kajihara in Komaki, JP.

Patents per Year

Patents granted per year, 1983 to 2022Bar chart with a peak of 2 patents in 1987.peak 21983: 1 patents19831985: 1 patents1986: 1 patents19861987: 2 patents1988: 1 patents19881989: 1 patents1992: 2 patents19921993: 1 patents1997: 2 patents19972014: 1 patents2015: 1 patents20152022: 1 patents2022

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11230238 Vehicle seat and method of manufacturing the same Kenji Hayata, Hiroka Kohama 2022-01-25 $1,187,000
9067519 Vehicle seat Kunio Nishiyama 2015-06-30 $920,000
8740309 Seat gap hiding structure 2014-06-03 $878,000
5691082 Beta-alumina solid electrolyte and process for production thereof Masaharu Kajita, Takao Totoki 1997-11-25
5612154 Beta-alumina solid electrolyte Masaharu Kajita, Takao Totoki 1997-03-18
5194201 Method of manufacturing high density silicon nitride sintered bodies Shinichi Miwa, Seiichi Asami 1993-03-16
5122862 Ceramic lid for sealing semiconductor element and method of manufacturing the same Koichiro Maekawa, Toshio Ohashi 1992-06-16
5089449 Silicon nitride sintered bodies Shinichi Miwa, Seiichi Asami, Kouichi Imao 1992-02-18
4800320 Discharge tube for a high pressure metal vapor discharge lamp and a method of manufacturing the same Senji Atsumi, Hirotsugu Izumiya 1989-01-24
4731561 Ceramic envelope device for high-pressure discharge lamp Hirotsugu Izumiya, Senji Atsumi 1988-03-15
4687969 Discharge tube for a high pressure metal vapor discharge lamp and a method of manufacturing the same Senji Atsumi, Hirotsugu Izumiya 1987-08-18
4665344 Ceramic envelope device for high-pressure discharge lamp Senji Atsumi, Hirotsugu Izumiya 1987-05-12
4616996 Non-oxidizing atmosphere firing furnace for ceramic articles Mitsugu Suzuki 1986-10-14
4495116 Polycrystalline translucent alumina sintered body, a method for producing the same and a high pressure vapor discharge lamp obtained by using said sintered body Masayuki Kaneno 1985-01-22
4373030 Polycrystalline translucent alumina sintered body, a method for producing the same and a high pressure vapor discharge lamp obtained by using said sintered body Masayuki Kaneno 1983-02-08