Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877219 | Pipe fitting | — | 1989-10-31 |
| 4864382 | Semiconductor device | Masaaki Aoki, Toshiaki Masuhara | 1989-09-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877219 | Pipe fitting | — | 1989-10-31 |
| 4864382 | Semiconductor device | Masaaki Aoki, Toshiaki Masuhara | 1989-09-05 |