HO

Hidemi Ohnaka

TO Toyota: 15 patents #1,771 of 26,838Top 7%
NC Nippondenso Co.: 2 patents #1,150 of 3,479Top 35%
Overall (All Time): #327,557 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
6505594 Control apparatus for internal combustion engine and method of controlling internal combustion engine Akihiro Katayama, Masanobu Kanamura, Satoru Watanabe 2003-01-14
5551231 Engine exhaust gas purification device Hiroshi Tanaka, Takaaki Itou, Keiso Takeda, Kazuhisa Kunitake, Toshio Tanahashi 1996-09-03
5461857 Engine exhaust gas purification device Takaaki Itou, Hiroshi Tanaka, Keiso Takeda, Kazuhisa Kunitake, Toshio Tanahashi 1995-10-31
5307783 Boost pressure control system for an engine Koichi Satoya, Michio Furuhashi, Yasuhiro Ooi 1994-05-03
5154155 Boost pressure control system for a supercharged engine Masaaki Tanaka, Yuuichi Kato, Michio Furuhashi, Koichi Satoya, Yasuhiro Ooi 1992-10-13
5150693 Boost pressure control system for a supercharged engine Masaaki Tanaka, Yuuichi Kato, Michio Furuhashi, Koichi Satoya, Yasuhiro Ooi 1992-09-29
4938196 Control device for heater for oxygen sensor operative to correct target resistance with reference to standard power supply thereto Kouichi Hoshi, Masaru Goudo, Mitsuhiro Suzuki, Ritsuo Masaki, Akira Hashizume 1990-07-03
4870942 Diagnosis device for exhaust gas recycling device of internal combustion engine Norio Shibata, Hideaki Mizuno, Kouichi Satoya, Nobuki Uchitani, Tatsuyoshi Kamohara +3 more 1989-10-03
4825841 Diagnosis device for an internal combustion engine exhaust gas recycling device Kazuhiko Norota, Mamoru Yoshioka 1989-05-02
4799466 Deceleration control device of an internal combustion engine Yoshiaki Shibata 1989-01-24
4594992 Supercharger of an internal combustion engine having Roots pump Norihiko Nakamura 1986-06-17
4501242 Air-fuel ratio control apparatus Yukihide Niimi, Seietsu Yoshida 1985-02-26
4478192 Air-fuel ratio control system for internal combustion engines Kenzi Kinoshita, Yukihide Niimi, Masahiro Urushidani 1984-10-23
4426976 Engine air/fuel ratio control system injecting bleed air into both fuel systems of double barreled carburetor Toshio Tanahashi, Yasuo Ohmori 1984-01-24
4343277 Throttle valve opening controller Norikatsu Ishikawa 1982-08-10