Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5477128 | Automatic charging apparatus | Yasuharu Yamada, Sohei Kuhara | 1995-12-19 |
| 5224563 | Energy regenerating mechanism of an automobile | Yasuharu Yamada | 1993-07-06 |
| 5142869 | Closed cycle type heat engine | Yasuharu Yamada | 1992-09-01 |