Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8014645 | Dispersion shifted optical fiber | Kazunori Suzuki, Hirokazu Kubota, Masatoshi Tanaka, Moriyuki Fujita | 2011-09-06 |
| 7373086 | Standard radio frequency signal generating method and standard radio frequency signal generating device | Takashi Yamamoto | 2008-05-13 |
| 7151897 | Optical clock phase-locked loop circuit | Takuya Ohara, Hidehiko Takara | 2006-12-19 |
| 7046887 | Polarization preserving optical fiber and absolute single polarization optical fiber | Kazunori Suzuki, Hirokazu Kubota, Masatoshi Tanaka, Moriyuki Fujita | 2006-05-16 |
| 6842565 | Optical modulation/multiplexing circuit | Takuya Ohara, Hidehiko Takara, Ippei Shake | 2005-01-11 |
| 6788865 | Polarization maintaining optical fiber with improved polarization maintaining property | Katsunari Okamoto | 2004-09-07 |
| 6720548 | Optical sampling waveform measuring apparatus aiming at achieving wider band | Akihito Otani, Toshinobu Otsubo, Hidehiko Takara, Ippei Shake | 2004-04-13 |
| 6697395 | Sum frequency light generation method and sum frequency light generation apparatus adapatble for wide-band wavelength conversion | Akihito Otani, Toshinobu Otsubo, Hidehiko Takara, Ippei Shake | 2004-02-24 |
| 6671444 | Optical fiber | Shinichi Arai, Takeshi Yagi, Kunihiko Mori, Hidehiko Takara | 2003-12-30 |
| 6404966 | Optical fiber | Katsunari Okamoto | 2002-06-11 |
| 6204944 | All-optical time-division demultiplexing circuit and all-optical TDM-WDM conversion circuit | Kentaro Uchiyama, Masatoshi Saruwatari | 2001-03-20 |
| 6154309 | Complementary optical sampling waveform measuring apparatus and polarization beam splitter which can be assembled therein | Akihito Otani, Toshinobu Otsubo, Hidehiko Takara | 2000-11-28 |
| 5999548 | White optical pulse source and applications | Kunihiko Mori, Hidehiko Takara, Masatoshi Saruwatari | 1999-12-07 |
| 5995228 | Wavelength dispersion measuring apparatus and polarization dispersion measuring apparatus | Akihito Otani, Toshinobu Otsubo, Hidehiko Takara, Yoshiaki Yamabayashi | 1999-11-30 |
| 5960146 | Optical fiber and light source apparatus | Toshiaki Okuno, Masashi Onishi, Masayuki Nishimura, Hidehiko Takara, Kunihiko Mori | 1999-09-28 |
| 5706113 | Phase lock loop circuit using optical correlation detection | Osamu Kamatani, Masatoshi Saruwatari | 1998-01-06 |
| 5646774 | Mode-locked laser stabilizing method and apparatus | Hidehiko Takara, Masatoshi Saruwatari | 1997-07-08 |
| 5590143 | Multiple-frequency-modulation type mode-locked laser device | Hidehiko Takara, Masatoshi Saruwatari | 1996-12-31 |
| 5574588 | Phase lock loop circuit using optical correlation detection | Osamu Kamatani, Masatoshi Saruwatari | 1996-11-12 |
| 5267256 | Wavelength division multiplex type mode - lock laser device | Masatoshi Saruwatari, Hidehiko Takara, John Schlager | 1993-11-30 |