Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4920401 | Bipolar transistors | Tetsushi Sakai, Hironori Yamauchi, Yoshinobu Arita | 1990-04-24 |
| 4531282 | Bipolar transistors having vertically arrayed collector-base-emitter with novel polycrystalline base electrode surrounding island emitter and method of making same | Tetsushi Sakai, Hironori Yamauchi, Yoshinobu Arita | 1985-07-30 |