Issued Patents All Time
Showing 51–60 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5917980 | Optical circuit device, its manufacturing process and a multilayer optical circuit using said optical circuit device | Tetsuzo Yoshimura, Wataru Sotoyama, Yasuhiro Yoneda, Katsusada Motoyoshi, Koji Tsukamoto +1 more | 1999-06-29 |
| 5892529 | Image forming method and image forming apparatus including electroconductive polymer layer for dye intake and release | Shigemi Ohtsu, Makoto Furuki, Lyong-Sun Pu | 1999-04-06 |
| 5835646 | Active optical circuit sheet or active optical circuit board, active optical connector and optical MCM, process for fabricating optical waveguide, and devices obtained thereby | Tetsuzo Yoshimura, Wataru Sotoyama, Takeshi Ishitsuka, Koji Tsukamoto, Shigenori Aoki +2 more | 1998-11-10 |
| 5818983 | Optical integrated circuit, optical circuit waveguide device and process for oriented, selective growth and formation of organic film | Tetsuzo Yoshimura, Wataru Sotoyama, Yasuhiro Yoneda, Katsusada Motoyoshi, Koji Tsukamoto +2 more | 1998-10-06 |
| 5757989 | Optical circuit system capable of producing optical signal having a small fluctuation and components of same | Tetsuzo Yoshimura, Takeshi Ishitsuka, Katsusada Motoyoshi, Wataru Sotoyama, Koji Tsukamoto +3 more | 1998-05-26 |
| 5659010 | Nonlinear optical material, process of production of same, and nonlinear optical device and directional coupling type optical switch using same | Wataru Sotoyama, Tetsuzo Yoshimura, Azuma Matsuura, Tomoaki Hayano | 1997-08-19 |
| 5612449 | Nonlinear optical material, process of production of same, and nonlinear optical device and directional coupling type optical switch using same | Wataru Sotoyama, Tetsuzo Yoshimura, 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, Tetsuzo Yoshimura, Azuma Matsuura, Tomoaki Hayano | 1997-01-14 |
| 5459232 | Nonlinear optical material, process of production of same, and nonlinear optical device and directional coupling type optical switch using same | Wataru Sotoyama, Tetsuzo Yoshimura, Azuma Matsuura, Tomoaki Hayano | 1995-10-17 |
| 5444811 | Organic functional optical thin film, fabrication and use thereof | Tetsuzo Yoshimura, Ei Yano, Wataru Sotoyama | 1995-08-22 |