Issued Patents All Time
Showing 1–25 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5197287 | Exhaust control system for engine with turbochargers | Seiji Tashima, Akihrio Nakamoto, Ikuo Onimura | 1993-03-30 |
| 5095703 | Air and fuel supply control systems for internal combustion engines | Toshimichi Akagi, Seiji Tashima | 1992-03-17 |
| 5090203 | Air and fuel supply control systems for internal combustion engines | Toshimichi Akagi, Seiji Tashima | 1992-02-25 |
| 5036663 | Air supply control systems for internal combustion engines | Toshimichi Akagi, Yasushi Niwa, Seiji Tashima | 1991-08-06 |
| 5035114 | Air supply control systems for turbocharged internal combustion engines | Masanori Shibata, Masaru Yamamoto, Seiji Tashima | 1991-07-30 |
| 5020327 | Air supply control systems for turbocharged internal combustion engines | Seiji Tashima, Toshimichi Akagi | 1991-06-04 |
| 5005359 | Air supply control systems for turbocharged internal combustion engines | Seiji Tashima, Toshimichi Akagi, Yasushi Niwa | 1991-04-09 |
| 5003781 | Air supply and exhaust control systems for turbocharged internal combustion engines | Masanori Shibata, Toshimichi Akagi, Seiji Tashima | 1991-04-02 |
| 4993228 | Internal combustion engine with turbo supercharger | Seiji Tashima, Toshimichi Akagi, Naoyuki Matsumoto | 1991-02-19 |
| 4982567 | Air supply control systems for turbocharged internal combustion engines | Takayoshi Hashimoto, Masanori Shibata, Seiji Tashima, Kaoru Yamada, Toshimichi Akagi +3 more | 1991-01-08 |
| 4926636 | Engine-control apparatus | Tomoo Tadokoro, Seiji Tashima, Toshimichi Akagi, Masami Nakao, Ikuo Matsuda +1 more | 1990-05-22 |
| 4875454 | Supercharging apparatus for an internal combustion engine | Seiji Tashima | 1989-10-24 |
| 4776312 | Engine roughness control | Sadashichi Yoshioka, Kazuhiko Ueda, Nobuo Doi, Masahiko Matsuura | 1988-10-11 |
| 4756284 | Intake system for internal combustion engine | Seiji Tashima, Naoyuki Koyama | 1988-07-12 |
| 4706621 | Intake systems for rotary piston engines | Seiji Tashima | 1987-11-17 |
| 4702219 | Supercharged engine | Tomoo Tadokoro, Toshimichi Akagi | 1987-10-27 |
| 4683856 | Engine roughness control means | Masahiko Matsuura, Nobuo Doi, Sadashichi Yoshioka, Kazuhiko Ueda | 1987-08-04 |
| 4669441 | Control of an automobile power unit | — | 1987-06-02 |
| 4641619 | Fuel injection control in supercharged engine | Syuzi Mithui, Hiroshi Ebino | 1987-02-10 |
| 4633844 | Ignition timing control for a supercharged engine | — | 1987-01-06 |
| 4627395 | Intake system for rotary piston engines | Tomoo Tadokoro, Ikuo Matsuda | 1986-12-09 |
| 4617799 | Plural turbine inlet passage turbo-supercharger with inlet passage shut-off valve | Tomoo Todokoro, Ikuo Matsuda | 1986-10-21 |
| 4614173 | Intake system for rotary piston engine | Ikuo Matsuda | 1986-09-30 |
| 4612770 | Turbocharged engine with exhaust purifier | Tomoo Tadokoro, Ikuo Matsuda | 1986-09-23 |
| 4612904 | Fuel injection system for internal combustion engines | Tomoo Tadokoro | 1986-09-23 |