Issued Patents All Time
Showing 76–100 of 172 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5113805 | Variable-cycle engine | — | 1992-05-19 |
| 5111779 | Electromagnetic valve actuating system | — | 1992-05-12 |
| 5105624 | Drive system for turbochargers with rotary electric machines | — | 1992-04-21 |
| 5095872 | Alcohol engine with combustion cavity | — | 1992-03-17 |
| 5095856 | Electromagnetic valve actuating system | — | 1992-03-17 |
| 5080081 | Four-cycle heat insulating engine | — | 1992-01-14 |
| 5076222 | Valve control system for internal combustion engine | — | 1991-12-31 |
| 5076221 | Electromagnetic valve actuating system | — | 1991-12-31 |
| 5074115 | Turbocharger with rotary electric machine | — | 1991-12-24 |
| 5072700 | Electromagnetic valve control system | — | 1991-12-17 |
| 5070826 | Electromagnetic valve actuating system | — | 1991-12-10 |
| 5069422 | Electromagnetic force valve driving apparatus | — | 1991-12-03 |
| 5069178 | Engine with variable combustion chamber | — | 1991-12-03 |
| 5063881 | Ceramic engine | — | 1991-11-12 |
| 5054443 | Heat-insulating engine with swirl chamber | — | 1991-10-08 |
| 5050543 | Valve control system for internal combustion engine | — | 1991-09-24 |
| 5033427 | Heat-insulating engine structure | Hiroshi Matsuoka | 1991-07-23 |
| 5025765 | Heat-insulated four-cycle engine with prechamber | — | 1991-06-25 |
| 5024057 | Exhaust-driven electric generator system for internal combustion engines | — | 1991-06-18 |
| 5022357 | Control system for internal combustion engine | — | 1991-06-11 |
| 5009202 | Electromagnetically operated valve assembly for use in internal combustion engine | — | 1991-04-23 |
| 5009389 | Electromagnetic force valve driving apparatus | — | 1991-04-23 |
| 5007382 | Cycle changeable engine | — | 1991-04-16 |
| 5005552 | Exhaust gas recirculation system of engine | — | 1991-04-09 |
| 5005539 | Engine cycle control system | — | 1991-04-09 |