Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831424 | Insulated gate semiconductor device with back-to-back diodes | Isao Yoshida, Takeaki Okabe, Mitsuo Ito, Tetsuo Iijima | 1989-05-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831424 | Insulated gate semiconductor device with back-to-back diodes | Isao Yoshida, Takeaki Okabe, Mitsuo Ito, Tetsuo Iijima | 1989-05-16 |