Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE34906 | Motor-driven throttle valve assembly | Sigeo Tamaki | 1995-04-18 |
| 4840146 | Multiple throttle mechanism for internal combustion engines | Shozo Yanagisawa, Sigeo Tamaki | 1989-06-20 |
| 4809659 | Motor-driven throttle valve assembly | Sigeo Tamaki | 1989-03-07 |
| 4712531 | Apparatus for adjusting specific volume of intake air for engine | Sigeo Tamaki | 1987-12-15 |