Issued Patents All Time
Showing 51–74 of 74 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4473040 | Flow control device of a helically-shaped intake port for use in a diesel engine | Masahito Shibata, Takeshi Okumura, Mutumi Kanda, Tokuta Inoue | 1984-09-25 |
| 4470386 | Flow control device of a helically-shaped intake port | Takeshi Okumura, Kiyoshi Isogai, Ituo Koga | 1984-09-11 |
| 4466396 | Flow control device of a helically-shaped intake port | Ituo Koga | 1984-08-21 |
| 4466398 | Flow control device of a helically-shaped intake port | Takeshi Okumura, Tokuta Inoue | 1984-08-21 |
| 4438741 | Device for controlling a flow in a helical type intake port | Takeshi Okumura, Tokuta Inoue | 1984-03-27 |
| 4411226 | Intake system for an internal combustion engine | Takeshi Okumura, Tokuta Inoue | 1983-10-25 |
| 4391854 | Method of making a bearing material containing an aluminum base alloy | Yoshitsugu Kanda, Minoru Kurikawa, Toru Morimoto | 1983-07-05 |
| 4359981 | High compression type internal combustion engine | Mutsumi Kanda, Katsuhiko Motosugi | 1982-11-23 |
| 4350125 | Fuel injection type internal combustion engine | Mutsumi Kanda, Tokuta Inoue | 1982-09-21 |
| 4344408 | Cylinder head, spark plug, and piston configuration | Tokuta Inoue, Mutsumi Kanda, Masahiko Nakada, Toshiharu Matsuura | 1982-08-17 |
| 4318376 | Combustion chamber of an internal combustion engine | Norihiko Nakamura, Kazuhiko Itou, Toyokazu Baika, Shuji Morita | 1982-03-09 |
| 4312309 | Helically-shaped intake port of an internal combustion engine | Takeshi Okumura | 1982-01-26 |
| 4303046 | Intake system of a multi-cylinder internal combustion engine | Katsuhiko Motosugi | 1981-12-01 |
| 4300499 | Combustion chamber of an internal combustion engine | Takeshi Okumura, Ryuichi Deguchi, Toshio Tanahashi | 1981-11-17 |
| 4296720 | Combustion chamber of an internal combustion engine | Takeshi Okumura, Ryuichi Deguchi, Toshio Tanahashi | 1981-10-27 |
| 4291662 | Combustion chamber of an internal combustion engine equipped with an auxiliary combustion chamber | Norihiko Nakamura, Takashi Kato | 1981-09-29 |
| 4289099 | Combustion chamber of an internal combustion engine | Kazuhiko Ito, Takeshi Okumura, Isamu Iezuka, Masao Yasukawa | 1981-09-15 |
| 4284044 | Combustion chamber of an internal combustion engine | Kazuhiko Ito, Takeshi Okumura, Isamu Iezuka, Masao Yasukawa | 1981-08-18 |
| 4280459 | Combustion chamber of an internal combustion engine | Kazuhiko Ito, Takeshi Okumura, Isamu Iezuka, Masao Yasukawa | 1981-07-28 |
| 4271803 | Internal combustion engine | Takeshi Okumura, Ryuichi Deguchi, Toshio Tanahashi | 1981-06-09 |
| 4267806 | High compression type internal combustion engine | Mutsumi Kanda, Katsuhiko Motosugi | 1981-05-19 |
| 4259933 | Combustion chamber of an internal combustion engine | Kazuhiko Ito, Takeshi Okumura, Isamu Iezuka, Masao Yasukawa | 1981-04-07 |
| 4212270 | Cooling system for an internal combustion engine | Takeshi Okumura | 1980-07-15 |
| 4182279 | Combustion chamber of an internal combustion engine | Katsujiro Sato, Takeshi Okumura | 1980-01-08 |