Issued Patents All Time
Showing 26–50 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6578359 | Stirling engine | Masaki Ban | 2003-06-17 |
| 6543216 | Heating device for external combustion engine | Masaki Ban | 2003-04-08 |
| 6536386 | Assist gas fuel injection mechanism for 2-cycle internal combustion engine | Yuji Marui | 2003-03-25 |
| 6513363 | Gas sensor and method of producing the same | Satoshi Ishikawa | 2003-02-04 |
| 6500322 | Gas sensor | Shoji Akatsuka, Kouji Matsuo, Satoshi Ishikawa | 2002-12-31 |
| 6446489 | Gas sensor and method of producing the same | Satoshi Ishikawa | 2002-09-10 |
| 6383353 | Oxygen sensor | Shoji Akatsuka, Satoshi Ishikawa | 2002-05-07 |
| 6312300 | 2-cycle engine and a watercraft having the 2-cycle engine installed therein | — | 2001-11-06 |
| 6230672 | Two-cycle internal combustion engine | Yoichi Ishibashi, Kenji Nishida, Shinichi Isomura, Hideki Noritake, Masami Takubo | 2001-05-15 |
| 6188677 | Telephone apparatus used for computer network telephone system | Akimasa Oyama, Hidekazu Watanabe, Kazunori Ozawa, Nobuhiro Tone | 2001-02-13 |
| 6145483 | Two-cycle internal combustion engine | — | 2000-11-14 |
| 6129059 | 2-stroke cycle internal combustion engine | — | 2000-10-10 |
| 6108329 | Telephone apparatus used for computer network telephone system | Akimasa Oyama, Hidekazu Watanabe, Kazunori Ozawa, Nobuhiro Tone | 2000-08-22 |
| 6095103 | Exhaust control valve structure for 2-cycle engine | Yoichi Ishibashi | 2000-08-01 |
| 6041745 | Two-cycle engine | Masashi Amano, Hideki Noritake | 2000-03-28 |
| 6014687 | System for audio communication between two terminals connected to the internet network | Hidekazu Watanabe, Akimasa Oyama, Kazunori Ozawa | 2000-01-11 |
| 5997373 | Jet-propelled boat | Takeshi Wakabayashi, Takaharu Kurosaki | 1999-12-07 |
| 5991291 | Server of a computer network telephone system | Akimasa Oyama, Hidekazu Watanabe | 1999-11-23 |
| 5960749 | Two-cycle internal combustion engine | Shinichi Isomura, Masashi Amano | 1999-10-05 |
| 5950581 | Two-cycle internal combustion engine | Kenji Nishida, Masashi Amano | 1999-09-14 |
| 5897843 | Exhaust gas purifier | Yoichi Ishibashi, Kenjiro Saito | 1999-04-27 |
| 5870710 | Audio transmission, recording and reproducing system | Kazunori Ozawa, Nobuhiro Tone | 1999-02-09 |
| 5697332 | Combustion controller for a spark ignition type two-cycle engine | Yoichi Ishibashi, Shinichi Isomura, Osamu Kudo, Kenji Nishida | 1997-12-16 |
| 5645018 | Two cycle internal combustion engine | Yoici Ishibashi | 1997-07-08 |
| 5599253 | Deceleration control apparatus for two-cycle engine of the spark ignition type for a vehicle | Yoichi Ishibashi, Shinichi Isomura, Takeshi Koyabu | 1997-02-04 |