Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879584 | Semiconductor device with isolation between MOSFET and control circuit | Yosuke Takagi, Koichi Kitahara, Tsuyoshi Kuramoto | 1989-11-07 |
| 4855799 | Power MOS FET with carrier lifetime killer | Hirohito Tanabe, Kazuaki Suzuki, Yukiharu Miwa, Yoshihito Nakayama | 1989-08-08 |
| 4837186 | Silicon semiconductor substrate with an insulating layer embedded therein and method for forming the same | Tsuyoshi Kuramoto, Masaru Shimbo | 1989-06-06 |