Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6791733 | Resonance type optical modulator using symmetric or asymmetric electrode | Tetsuya Kawanishi, Masayuki Izutsu | 2004-09-14 |
| 5025448 | Method and apparatus for stabilizing frequency of semiconductor laser | Shoichi Sudo, Yoshihisa Sakai, Hiroshi Yasaka, Tetsuhiko Ikegami, Yuzo Yoshikuni +1 more | 1991-06-18 |
| 4999139 | Organic nonlinear optical material and nonlinear optical device | Takashi Kurihara, Shiro Matsumoto, Toshikuni Kainou, Hirohisa Kanbara | 1991-03-12 |
| 4997595 | Organic nonlinear optical material and nonlinear optical device | Takashi Kurihara, Shiro Matsumoto, Toshikuni Kaino, Hirohisa Kanbara | 1991-03-05 |