Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865945 | Positive photoresist material with o-quinone diazide and polymer containing silicon atoms | Keiichi Nito, Junetsu Seto | 1989-09-12 |
| 4810911 | FET switch circuit having small insertion loss and exhibiting stable operation | — | 1989-03-07 |