Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7835604 | Fiber Bragg grating element | Kazuhiko Kashima, Toshiyuki Inukai | 2010-11-16 |
| 7362939 | Optical fiber for long period grating, long period grating component and manufacturing method of the same | Toshiaki Tsuda, Keiichi Aiso, Takeshi Yagi, Yukio Niino, Kazuhiko Nishiyama +1 more | 2008-04-22 |
| 5694509 | Optical coupler | Etuo Umehara, Kazuyuki Fukumura | 1997-12-02 |
| 5159649 | Optical switching connector | Toshihiko Oota, Takashi Shigematsu, Masao Ishikawa | 1992-10-27 |