Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691546 | Semiconductor device having a high current gain and a higher Ge amount at the base region than at the emitter and collector regions, and photoelectric conversion apparatus using the device | — | 1997-11-25 |
| 5602413 | Avalanche phototransistor | — | 1997-02-11 |
| 5597741 | Process for forming a recrystallized layer and diffusing impurities | Masaru Sakamoto, Shigeru Nishimura | 1997-01-28 |