Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5612449 | Nonlinear optical material, process of production of same, and nonlinear optical device and directional coupling type optical switch using same | Wataru Sotoyama, Satoshi Tatsuura, Azuma Matsuura, Tomoaki Hayano | 1997-03-18 |
| 5594093 | Nonlinear optical material and nonlinear optical device and directional coupling type optical switch using same | Wataru Sotoyama, Satoshi Tatsuura, Azuma Matsuura, Tomoaki Hayano | 1997-01-14 |
| 5581646 | Method of coupling optical parts and refractive index imaging material | Koji Tsukamoto, Takeshi Ishitsuka, Katsusada Motoyoshi, Yasuhiro Yoneda | 1996-12-03 |
| 5459232 | Nonlinear optical material, process of production of same, and nonlinear optical device and directional coupling type optical switch using same | Wataru Sotoyama, Satoshi Tatsuura, Azuma Matsuura, Tomoaki Hayano | 1995-10-17 |
| 5444811 | Organic functional optical thin film, fabrication and use thereof | Ei Yano, Satoshi Tatsuura, Wataru Sotoyama | 1995-08-22 |
| 5194548 | Organic nonlinear optical material | — | 1993-03-16 |