Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5483200 | Light-receiving and amplifying device capable of switching between gain levels at high speed and obtaining a sufficient signal-to-noise ratio over a wide range in quantity of incident light | Koichi Hanafusa, Masaya Ohnishi | 1996-01-09 |
| 5321254 | Light-receiving and amplyfying device capable of widening an AC operation range | Naruichi Yokogawa, Koichi Hanafusa | 1994-06-14 |
| 4943736 | Waveform converting apparatus | Seiichiro Kihara | 1990-07-24 |
| 4420750 | Alphanumeric visual display of the matrix type | — | 1983-12-13 |