KO

Kiyohiko Oishi

TO Toyota: 15 patents #1,771 of 26,838Top 7%
NS Nippon Soken: 4 patents #322 of 1,540Top 25%
TL Toyota Central R&D Labs: 1 patents #823 of 1,657Top 50%
📍 Susono, JP: #216 of 1,238 inventorsTop 20%
Overall (All Time): #328,825 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
5294421 Method for catalytically purifying exhaust gas Hideaki Muraki, Tokuta Inoue, Kenji Katoh 1994-03-15
5155994 Exhaust gas purification system for an internal combustion engine Hideaki Muraki, Kenji Katoh, Shinichi Takeshima 1992-10-20
5141906 Catalyst for purifying exhaust gas Shinichi Takeshima, Toshiaki Tanaka, Tokuta Inoue 1992-08-25
4667636 Fuel injection type internal combustion engine Kiyoshi Nakanishi, Nobuaki Kayanuma, Taiyo Kawai, Norihisa Nakagawa, Hiroshi Nomura 1987-05-26
4608948 Air intake device of an internal combustion engine Tokuta Inoue, Takamitsu Okamoto, Keiso Takeda 1986-09-02
4574748 Air intake device of an internal combustion engine Tokuta Inoue, Takamitsu Okamoto, Keiso Takeda 1986-03-11
4549398 Exhaust gas cleaning device for diesel engines Kiyoshi Kobashi, Kenichirou Takama 1985-10-29
4538412 Exhaust gas cleaning device for diesel engines Yasuhiko Ishida, Kenichirou Takama 1985-09-03
4485622 Exhaust gas cleaning device for internal combustion engine Shigeru Takagi, Yukihisa Takeuchi, Shigeru Kamiya, Masahiro Tomita, Kiyoshi Kobashi 1984-12-04
4404798 Exhaust gas cleaning device for internal combustion engine Shigeru Takagi, Yukihisa Takeuchi, Shigeru Kamiya, Masahiro Tomita, Kiyoshi Kobashi 1983-09-20
4404795 Method of and apparatus for reducing emitted amount of particulates contained in exhaust gas of diesel engine Yoshihiro Suzuki, Kiyoshi Kobashi, Shinichi Matsumoto, Takashi Yoshida, Takeshi Kogiso 1983-09-20
4386497 Exhaust gas cleaning device for internal combustion engine Shigeru Takagi, Yukihisa Takeuchi, Shigeru Kamiya, Masahiro Tomita, Kiyoshi Kobashi 1983-06-07
4272460 Variable venturi type carburetor Noboru Watanabe, Tokuta Inoue 1981-06-09
4264537 Variable venturi type carburetor Noboru Watanabe, Tokuta Inoue 1981-04-28
4242997 Exhaust gas recirculation system for internal combustion engines Tokio Kohama, Takeshi Matsui, Akira Nishimatsu, Tokuta Inoue, Kiyoshi Kobashi 1981-01-06