Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5331198 | Semiconductor device including IIL and vertical transistors | Mitsuo Tanaka, Takehiro Hirai, Masahiro Nakatani | 1994-07-19 |
| 5323054 | Semiconductor device including integrated injection logic and vertical NPN and PNP transistors | Mitsuo Tanaka, Takehiro Hirai, Masahiro Nakatani | 1994-06-21 |
| 5318917 | Method of fabricating semiconductor device | Yoshiro Fujita, Takehiro Hirai, Mitsuo Tanaka, Hideya Esaki | 1994-06-07 |