Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847531 | Waterproofing device for display unit | Shun-ichi Futatsuishi | 1989-07-11 |
| 4800747 | Method of measuring oxygen in silicon | Takeshi Yamada, Hiroshi Uchihara | 1989-01-31 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847531 | Waterproofing device for display unit | Shun-ichi Futatsuishi | 1989-07-11 |
| 4800747 | Method of measuring oxygen in silicon | Takeshi Yamada, Hiroshi Uchihara | 1989-01-31 |