Issued Patents All Time
Showing 1–25 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5483795 | Exhaust purification device of internal combustion engine | Kenji Katoh, Hidetaka Nohira, Kiyoshi Nakanishi, Satoshi Iguchi, Tetsuro Kihara +9 more | 1996-01-16 |
| 5412945 | Exhaust purification device of an internal combustion engine | Kenji Katoh, Hidetaka Nohira, Kiyoshi Nakanishi, Satoshi Iguchi, Tetsuro Kihara +1 more | 1995-05-09 |
| 5365733 | Exhaust gas purification system for an internal combustion engine | Shinichi Takeshima, Toshiaki Tanaka | 1994-11-22 |
| 5294421 | Method for catalytically purifying exhaust gas | Hideaki Muraki, Kiyohiko Oishi, Kenji Katoh | 1994-03-15 |
| 5233830 | Exhaust gas purification system for an internal combustion engine | Shinichi Takeshima, Toshiaki Tanaka | 1993-08-10 |
| 5189876 | Exhaust gas purification system for an internal combustion engine | Shinya Hirota | 1993-03-02 |
| 5141906 | Catalyst for purifying exhaust gas | Shinichi Takeshima, Toshiaki Tanaka, Kiyohiko Oishi | 1992-08-25 |
| 4942860 | Engine control system | Yoshiki Chujo, Toshiaki Konomi, Yoshihiko Hyodo | 1990-07-24 |
| 4934142 | Exhaust emission control device for a diesel engine | Kotaro Hayashi, Sumio Ito, Kiyoshi Kobashi, Shinichi Takeshima | 1990-06-19 |
| 4916897 | Exhaust gas purifying apparatus built-in to a muffler for a diesel engine | Kotaro Hayashi, Sumio Ito, Kiyoshi Kobashi, Shinichi Takeshima | 1990-04-17 |
| 4836174 | Engine control system | Yoshiki Chujo, Toshiaki Konomi, Yoshihiko Hyodo | 1989-06-06 |
| 4682577 | Method and apparatus for reducing NOx in internal combustion engine | Kenji Kato, Kiyoshi Nakanishi, Soichi Matsushita | 1987-07-28 |
| 4665740 | Combustion process sensor | Hisashi Matsumoto, Yoshikazu Motogami, Masahiko Miyahara, Kohichi Hasegawa, Keiji Aoki +6 more | 1987-05-19 |
| 4608956 | Operating apparatus for lean burn internal combustion engine | Kenji Katoh, Toshio Yamada, Kenichiro Shindo, Souichi Matsushita | 1986-09-02 |
| 4608948 | Air intake device of an internal combustion engine | Kiyohiko Oishi, Takamitsu Okamoto, Keiso Takeda | 1986-09-02 |
| 4574748 | Air intake device of an internal combustion engine | Kiyohiko Oishi, Takamitsu Okamoto, Keiso Takeda | 1986-03-11 |
| 4520783 | Method of controlling fuel injection and apparatus therefor | Souichi Matsushita, Kiyoshi Nakanishi | 1985-06-04 |
| 4506632 | Piston assembly with cooling lubricant reservoir defining member engaged to piston pin mounting bosses | Mutsumi Kanda, Souichi Matsushita, Kiyoshi Nakanishi | 1985-03-26 |
| 4505233 | Piston assembly with cooling lubricant reservoir defining member with a deep narrow reservoir and a shallow wide reservoir | Mutsumi Kanda, Souichi Matsushita, Kiyoshi Nakanishi | 1985-03-19 |
| 4503819 | Helically-shaped intake port of an internal-combustion engine | Takeshi Okumura, Kiyoshi Nakanishi, Mutsumi Kanda, Takeshi Kotani | 1985-03-12 |
| 4502432 | Helically shaped intake port of an internal-combustion engine | Takeshi Okumura, Kiyoshi Nakanishi | 1985-03-05 |
| 4499868 | Intake device of an internal combustion engine | Mutsumi Kanda, Kiyoshi Nakanishi, Mikio Nakajima | 1985-02-19 |
| 4485774 | Helically-shaped intake port of an internal-combustion engine | Mutsumi Kanda, Kiyoshi Nakanishi, Takeshi Okumura, Takeshi Kotani | 1984-12-04 |
| 4485773 | Helically-shaped intake port of an internal-combustion engine | Mutsumi Kanda, Kiyoshi Nakanishi | 1984-12-04 |
| 4485775 | Helically-shaped intake port of an internal-combustion engine | Mutsumi Kanda, Kiyoshi Nakanishi, Takeshi Okumura, Takeshi Kotani | 1984-12-04 |