Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7646982 | Chromatic dispersion compensator | Yasuhiro Yamauchi, Hirohiko Sonoda, Hiroyuki Furukawa | 2010-01-12 |
| 7340128 | Wavelength selection device | Kohei Shibata, Nobuhiro Fukushima, Tamotsu Akashi, Toshiya Kishida, Tsuyoshi Yamamoto +4 more | 2008-03-04 |
| 7330617 | Wavelength selective optical switch, and optical device provided with spectroscopic function | Hirofumi Aota, Kohei Shibata, Tamotsu Akashi, Shinji Yamashita, Tsuyoshi Yamamoto +4 more | 2008-02-12 |
| 7262913 | Chromatic dispersion and dispersion slope compensating apparatus | Akira Miura, Hiroki Ooi, Yasuhiro Yamauchi | 2007-08-28 |
| 6466705 | Acousto-optic variable-wavelength TE/TM mode converter, and a variable-wavelength optical filter using this converter | Takehito Tanaka | 2002-10-15 |
| 6238102 | Multiaxial optical coupler | Toshihiro Ohtani, Tomoyuki Itoh, Takehito Tanaka | 2001-05-29 |
| 6046839 | Polarizaiton scrambler | Tomoyuki Ito, Toshihiro Ohtani, Yasuhiro Omori | 2000-04-04 |
| 6033126 | Optical waveguide module having improved high-frequency characteristics | Yasuhiro Omori, Toshihiro Ohtani, Tomoyuki Itoh | 2000-03-07 |
| 5963357 | Optical modulator | Yasuhiro Omori, Toshihiro Otani, Tomoyuki Itoh | 1999-10-05 |
| 5953466 | Optical modulator | Yasuhiro Omori, Toshihiro Otani, Tomoyuki Itoh | 1999-09-14 |
| 5889912 | Optical waveguide device | Toshihiro Otani, Tomoyuki Ito, Yasuhiro Omori | 1999-03-30 |
| 5764400 | Optical modulator | Tomoyuki Itou, Hisashi Takamatsu, Toshihiro Otani, Yasuhiro Omori | 1998-06-09 |
| 5680497 | Optical waveguide device | Minoru Seino, Tadao Nakazawa, Takashi Yamane, Masaharu Doi, Kunio Sugeta +1 more | 1997-10-21 |
| 5404412 | Optical waveguide device | Minoru Seino, Tadao Nakazawa, Takashi Yamane, Masaharu Doi, Kunio Sugeta +1 more | 1995-04-04 |
| 5214724 | Optical waveguide device with suppressed DC drift | Minoru Seino, Naoyuki Mekada, Tadao Nakazawa, Masaharu Doi | 1993-05-25 |