Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887215 | Method of examining operation of electronic control system for internal combustion engines | Shinji Juman, Yutaka Kimura, Haruhito Mitomo | 1989-12-12 |
| 4870587 | Method of discriminating a stroke of a 4-cycle internal combustion engine | — | 1989-09-26 |
| 4796208 | Method of detecting reference crank angle position in an internal combustion engine at the time of starting same | Shinji Juman, Yutaka Kimura, Haruhito Mitomo | 1989-01-03 |