Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11988873 | End structure of a waveguide | Satomi Katayose, Yuji Fujiwara, Ryoichi Kasahara | 2024-05-21 |
| 11960152 | Method for adjusting transmitted wavelength of signal light transmitted through optical waveguide device | Nobutatsu Koshobu, Satomi Katayose, Ryoichi Kasahara | 2024-04-16 |
| 11835768 | Filling resin and optical waveguide circuit filled with filling resin | Nobutatsu Koshobu, Ryoichi Kasahara | 2023-12-05 |
| 11269139 | Waveguide type optical interferometer circuit | Nobutatsu Koshoubu, Ryoichi Kasahara | 2022-03-08 |
| 6766082 | Waveguide-type optical device and manufacturing method therefor | Chikara Amano | 2004-07-20 |
| 6545739 | Tunable wavelength filter using nano-sized droplets of liquid crystal dispersed in a polymer | Shiro Matsumoto, Yasuyuki Sugiyama, Seizou Sakata, Takayoshi Hayashi | 2003-04-08 |
| 5920664 | Board-to-board and unit-to-unit optical interconnection system | Tsuyoshi Yamamoto, Shigeki Hino | 1999-07-06 |
| 5648859 | Liquid crystal microprism array, free-space optical interconnector, and optical switch | Tsuyoshi Yamamoto, Masayasu Yamaguchi, Hirofumi Yamazaki | 1997-07-15 |
| 5321539 | Liquid crystal Fabry-Perot etalon with glass spacer | Hiroyuki Tsuda, Takashi Kurokawa | 1994-06-14 |