Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4343521 | Ball bearing | Yukihiro Akabane, Hisashi Satoh, Yukio Shiraiwa | 1982-08-10 |
| 4334721 | Ball bearing | Hisashi Satoh, Yukihiro Akabane, Yukio Shiraiwa | 1982-06-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4343521 | Ball bearing | Yukihiro Akabane, Hisashi Satoh, Yukio Shiraiwa | 1982-08-10 |
| 4334721 | Ball bearing | Hisashi Satoh, Yukihiro Akabane, Yukio Shiraiwa | 1982-06-15 |