Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7034149 | Cyan dye mixture, water-based cyan ink composition, and method of ink-jet recording | Kitayama Hirokazu, Shinichi Namba, Takafumi Fujii, Junko Yoshioka, Yasuo Shirasaki | 2006-04-25 |
| 4604865 | Exhaust system air introduction device | Akira Okubo, Kanau Iwashita | 1986-08-12 |
| 4581206 | Catalytic converter | Akira Okubo | 1986-04-08 |
| 4535746 | Intake air heating device for internal combustion engine for motorcycles | Makoto Hirano | 1985-08-20 |
| 4494504 | Stratified burn internal combustion engine | Shizuo Yagi, Isao Fujii, Hiroshi Kogure | 1985-01-22 |
| 4492209 | Exhaust gas recirculation system | Yasuo Ikenoya, Masafumi Araki | 1985-01-08 |
| 4450684 | Exhaust gas cleaning system for internal combustion engine | Yasuo Ikenoya, Hiroshi Kato | 1984-05-29 |
| 4426962 | Structure for facilitating starting and warming of internal combustion engines | Akira Okubo, Takashi Kushibiki | 1984-01-24 |
| 4424839 | Inlet for a fuel tank | Noriyasu Matsuhashi | 1984-01-10 |
| 4413392 | Method of making two-stage catalytic converter | Yasuo Ikenoya, Kanau Iwashita | 1983-11-08 |
| 4397817 | Catalytic converter | Yasuo Ikenoya, Kanau Iwashita, Kazuo Fujiwara | 1983-08-09 |
| 4387565 | Exhaust gas cleaning system for multi-cylinder internal combustion engine | Yasuo Ikenoya | 1983-06-14 |
| 4354349 | Exhaust system for an internal combustion engine | Yasuo Ikenoya | 1982-10-19 |
| 4354463 | Device for improving combustion efficiency of mixture in four cycle internal combustion engine | Yasuo Ikenoya | 1982-10-19 |
| 4317438 | High power output engine | Shizuo Yagi, Yasuo Ikenoya, Hiroshi Kogure | 1982-03-02 |