Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5961931 | Particulate trap | Syunsuke Ban, Tomohiko Ihara, Yoichi Nagai, Hiromichi Yanagihara | 1999-10-05 |
| 5930995 | Exhaust gas purification device for a compression-ignition combustion engine | Yoshimasa Watanabe, Yasushi Araki, Yoshimitu Henda | 1999-08-03 |
| 5908480 | Particulate trap for diesel engine | Shunsuke Ban, Youichi Nagai, Hiromichi Yanagihara | 1999-06-01 |
| 5863311 | Particulate trap for diesel engine | Youichi Nagai, Syunsuke Ban, Tomohiko Ihara, Hiromichi Yanagihara | 1999-01-26 |
| 5851249 | Particulate trap for a diesel engine | Yoshimitu Henda, Yoshimasa Watanabe, Yasushi Araki, Youichi Nagai, Syunsuke Ban | 1998-12-22 |
| 5826427 | Compression ignition type engine | Hiromichi Yanagihara | 1998-10-27 |
| 5473887 | Exhaust purification device of internal combustion engine | Shinichi Takeshima, Kiyoshi Nakanishi, Satoshi Iguchi, Toshiaki Tanaka, Yasushi Araki +1 more | 1995-12-12 |
| 5406790 | Exhaust gas purification device for an engine | Shinya Hirota, Yasushi Araki, Tomohiro Oda, Fumitada Murakami | 1995-04-18 |
| 4934142 | Exhaust emission control device for a diesel engine | Kotaro Hayashi, Tokuta Inoue, Sumio Ito, Shinichi Takeshima | 1990-06-19 |
| 4916897 | Exhaust gas purifying apparatus built-in to a muffler for a diesel engine | Kotaro Hayashi, Tokuta Inoue, Sumio Ito, Shinichi Takeshima | 1990-04-17 |
| 4875336 | Exhaust gas emission control device for diesel engine | Kotaro Hayashi, Sumio Ito | 1989-10-24 |
| 4723973 | Purifying apparatus of a particulate trap-type for collecting particulates in exhaust gas from an engine | Kazuo Oyobe, Hiroki Hoshizaki, Terutaka Kageyama, Hirofumi Suzuki, Yoshihiko Imamura +2 more | 1988-02-09 |
| 4723069 | Ceramic heater | Hiroki Hoshizaki, Kazuo Oyobe, Hirofumi Suzuki, Nobuaki Kawahara, Terutaka Kageyama +4 more | 1988-02-02 |
| 4549398 | Exhaust gas cleaning device for diesel engines | Kiyohiko Oishi, Kenichirou Takama | 1985-10-29 |
| 4485622 | Exhaust gas cleaning device for internal combustion engine | Shigeru Takagi, Yukihisa Takeuchi, Shigeru Kamiya, Masahiro Tomita, Kiyohiko Oishi | 1984-12-04 |
| 4452040 | Soot catcher purgative diesel engine fuel supply method and apparatus | — | 1984-06-05 |
| 4404795 | Method of and apparatus for reducing emitted amount of particulates contained in exhaust gas of diesel engine | Kiyohiko Oishi, Yoshihiro Suzuki, Shinichi Matsumoto, Takashi Yoshida, Takeshi Kogiso | 1983-09-20 |
| 4404798 | Exhaust gas cleaning device for internal combustion engine | Shigeru Takagi, Yukihisa Takeuchi, Shigeru Kamiya, Masahiro Tomita, Kiyohiko Oishi | 1983-09-20 |
| 4386497 | Exhaust gas cleaning device for internal combustion engine | Shigeru Takagi, Yukihisa Takeuchi, Shigeru Kamiya, Masahiro Tomita, Kiyohiko Oishi | 1983-06-07 |
| 4322799 | Exhaust gas recirculation valve control system and method | Tokio Kohama, Takeshi Matsui, Hisasi Kawai, Akira Nishimatsu, Toshikazu Ina +1 more | 1982-03-30 |
| 4299600 | Trapper device for collecting and incinerating fine particulates included in exhaust gas from a diesel engine | — | 1981-11-10 |
| 4257382 | Electronic control system for internal combustion engines | Takeshi Matsui, Tokio Kohama, Hisasi Kawai, Akira Nishimatsu, Toshikazu Ina +1 more | 1981-03-24 |
| 4250855 | Electronic control system for carburetor | Tokio Kohama, Takeshi Matsui, Akira Nishimatsu, Hisasi Kawai, Toshikazu Ina +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 |
| 4242997 | Exhaust gas recirculation system for internal combustion engines | Tokio Kohama, Takeshi Matsui, Akira Nishimatsu, Tokuta Inoue, Kiyohiko Oishi | 1981-01-06 |