Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889621 | Oil strainer for an automatic transmission | Ryoichi Shirai, Youichi Hayakawa | 1989-12-26 |
| D300717 | Cordless electric drill | Hideaki Hasegawa | 1989-04-18 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889621 | Oil strainer for an automatic transmission | Ryoichi Shirai, Youichi Hayakawa | 1989-12-26 |
| D300717 | Cordless electric drill | Hideaki Hasegawa | 1989-04-18 |