Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5483795 | Exhaust purification device of internal combustion engine | Kenji Katoh, Tokuta Inoue, Kiyoshi Nakanishi, Satoshi Iguchi, Tetsuro Kihara +9 more | 1996-01-16 |
| 5412945 | Exhaust purification device of an internal combustion engine | Kenji Katoh, Tokuta Inoue, Kiyoshi Nakanishi, Satoshi Iguchi, Tetsuro Kihara +1 more | 1995-05-09 |
| 4798084 | Measuring device for measuring a fuel injection quantity | Takeshi Takahashi, Naoyuki Tsuzuki, Yukimitsu Omori, Akio Takamura | 1989-01-17 |
| 4711216 | Fuel supply device for an internal combustion engine | Yasuhiro Takeuchi, Yasuyuki Sakakibara, Toshihiko Igashira | 1987-12-08 |
| 4696265 | Device for varying a valve timing and lift for an internal combustion engine | — | 1987-09-29 |
| 4667638 | Fuel injection apparatus for internal combustion engine | Toshihiko Igashira, Yasuyuki Sakakibara, Yasuhiro Takeuchi, Seiko Abe | 1987-05-26 |
| 4661695 | Optical apparatus and method for detecting the top dead center position of an engine piston | Satoshi Mori, Tsuneyuki Egami, Kouichi Mori, Kunimasa Yoshimura | 1987-04-28 |
| 4442809 | Combustion chamber of an internal combustion engine with an accumulation chamber | Sumio Ito, Hisashi Oki | 1984-04-17 |
| 4400944 | Air-fuel ratio control method and apparatus for internal combustion engines | Kenzi Iwamoto, Makoto Kuroyanagi, Hisasi Kawai, Kunimasa Yoshimura, Mitsuyuki Ugajin +1 more | 1983-08-30 |
| 4334422 | Knock detecting apparatus | Hisasi Kawai, Kunimasa Yoshimura | 1982-06-15 |
| 4322799 | Exhaust gas recirculation valve control system and method | Tokio Kohama, Takeshi Matsui, Hisasi Kawai, Akira Nishimatsu, Toshikazu Ina +1 more | 1982-03-30 |
| 4318273 | Internal combustion engine equipped with a turbocharger | Kunimasa Yoshimura, Mitsuyuki Ugajin | 1982-03-09 |
| 4308837 | Intake system of an internal combustion engine | Toshiaki Konomi, Hideaki Matsui | 1982-01-05 |
| 4282845 | Internal combustion engine with exhaust gas accumulation chamber | Sumio Ito, Hisashi Oki | 1981-08-11 |
| 4271801 | Internal combustion engine with twin intake ports for each cylinder | Yoshio Yamakawa, Toshikazu Toyoda | 1981-06-09 |
| 4257382 | Electronic control system for internal combustion engines | Takeshi Matsui, Tokio Kohama, Hisasi Kawai, Akira Nishimatsu, Toshikazu Ina +1 more | 1981-03-24 |
| 4253432 | Intake system of an internal combustion engine of a counter-flow type | Toshiaki Konomi, Hideaki Matsui | 1981-03-03 |
| 4250855 | Electronic control system for carburetor | Tokio Kohama, Takeshi Matsui, Akira Nishimatsu, Kiyoshi Kobashi, Hisasi Kawai +1 more | 1981-02-17 |
| 4248187 | Electronic control system for internal combustion engines | Takeshi Matsui, Tokio Kohama, Hisasi Kawai, Akira Nishimatsu, Toshikazu Ina +1 more | 1981-02-03 |
| 4237826 | Multi-cylinder internal combustion engine equipped with an accumulation chamber | Katsuhiko Motosugi, Setsuro Sekiya, Sumio Ito, Hisashi Ohki, Teruo Kumai | 1980-12-09 |
| 4230073 | Combustion chamber of an internal combustion engine | Sumio Ito, Hisashi Oki, Teruo Kumai | 1980-10-28 |
| 4230079 | Exhaust gas recirculation system for internal combustion engines | Tokio Kohama, Tadashi Ozaki, Hideki Obayashi | 1980-10-28 |
| 4226222 | Exhaust gas recirculation system for internal combustion engines | Tokio Kohama, Takeshi Matsui, Hisasi Kawai, Akira Nishimatsu, Toshikazu Ina +1 more | 1980-10-07 |
| 4223645 | Combustion chamber of an internal combustion engine | Sumio Ito, Teruo Kumai, Hisashi Oki | 1980-09-23 |
| 4222237 | Exhaust gas purifying apparatus for internal combustion engine | Tokio Kohama, Hideki Obayashi, Tadashi Ozaki | 1980-09-16 |