Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819054 | Semiconductor IC with dual groove isolation | Toshihiko Takakura, Akihisa Uchida, Shigeo Kuroda, Yoichi Tamaki, Takeo Shiba +2 more | 1989-04-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819054 | Semiconductor IC with dual groove isolation | Toshihiko Takakura, Akihisa Uchida, Shigeo Kuroda, Yoichi Tamaki, Takeo Shiba +2 more | 1989-04-04 |