Issued Patents All Time
Showing 76–97 of 97 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4423667 | Bearing | — | 1984-01-03 |
| 4423714 | Internal combustion engine | — | 1984-01-03 |
| 4416350 | Muffler | — | 1983-11-22 |
| 4415059 | Muffler | — | 1983-11-15 |
| 4412516 | Low-noise level internal combustion engine | — | 1983-11-01 |
| 4394850 | Cylinder block for automotive internal combustion engine | — | 1983-07-26 |
| 4373485 | Carburetor for an internal combustion engine | — | 1983-02-15 |
| 4362341 | Low-noise level internal combustion engine | Yasuo Matsumoto | 1982-12-07 |
| 4350129 | Spark-ignition internal combustion engine capable of preventing noxious gas emissions | Yasuo Nakajima, Shin-ichi Nagumo, Tooru Yoshimura | 1982-09-21 |
| 4275688 | Cooling system for internal combustion engine | Fumiyuki Abe | 1981-06-30 |
| 4245595 | Internal combustion engine for motor vehicles | Fumiyuki Abe, Akira Kimura | 1981-01-20 |
| 4230087 | Low-noise-level internal combustion engine | Fumiyuki Abe, Akira Kimura | 1980-10-28 |
| 4224792 | Internal combustion engine equipped with an improved air injection system | Shin-ichi Nagumo | 1980-09-30 |
| 4222353 | Cooling system for internal combustion engine | Fumiyuki Abe | 1980-09-16 |
| 4221197 | Multi-cylinder internal combustion engine having siamesed exhaust ports | Hiroshi Kuroda, Yasuo Nakajima, Haruo Fujino | 1980-09-09 |
| 4221203 | Cross-flow type internal combustion engine with a small sized exhaust gas recirculating system | Akihiro Ohnishi, Makio Waku, Hideo Kamino | 1980-09-09 |
| 4218880 | Spark-ignition internal combustion engine | Hiroshi Kuroda, Yasuo Nakajima, Shin-ichi Nagumo | 1980-08-26 |
| 4213440 | Low-noise-level reciprocating piston engine | Fumiyuki Abe, Akira Kimura | 1980-07-22 |
| 4205040 | Exposed aggregate finishing method for concrete | Tsuyoshi Aoyama, Hirotaka Toba, Akira Yoshida, Kenji Goto, Motoaki Kawakama | 1980-05-27 |
| 4202306 | Multi-point spark ignition engine provided with exhaust recirculation circuit | Yasuo Nakajima, Tooru Yoshimura | 1980-05-13 |
| 4198942 | Dual spark plug ignition engine with EGR system | Hiroshi Kuroda, Yasuo Nakajima | 1980-04-22 |
| 4182289 | Variable valve timing system for internal combustion engine | Yasuo Nakajima | 1980-01-08 |