Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6377388 | Optical signal processor | Kosuke Nishimura, Masashi Usami, Munefumi Tsurusawa | 2002-04-23 |
| 6147901 | Semiconductor memory operating electrically and optically, retaining information without power supply | Yasuyuki Nagao, Yuichi Matsushima | 2000-11-14 |
| 5952683 | Functional semiconductor element with avalanche multiplication | Katsuyuki Utaka, Yuichi Matsushima | 1999-09-14 |
| 5663572 | Optical functional semiconductor element | Katsuyuki Utaka, Yuichi Matsushima | 1997-09-02 |