Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819054 | Semiconductor IC with dual groove isolation | Mikinori Kawaji, Toshihiko Takakura, Akihisa Uchida, Shigeo Kuroda, Yoichi Tamaki +2 more | 1989-04-04 |
| 4812894 | Semiconductor device | Tohru Nakamura, Kazuo Nakazato, Noriyuki Homma, Kazuhiko Sagara, Tokuo Kure +1 more | 1989-03-14 |
| 4809052 | Semiconductor memory device | Yasushiro Nishioka, Hiroshi Shinriki, Kiichiro Mukai, Akihisa Uchida, Ichiro Mitamura +4 more | 1989-02-28 |