Issued Patents All Time
Showing 26–50 of 70 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7073915 | Mirror fixing method and optical apparatus | Hideo Okada, Yuji Sakata, Shinichi Wakana, Yujin Yamazaki, Yuichi Kawahata | 2006-07-11 |
| 7037386 | Rolling bearing for continuously variable transmission | Susumu Tanaka, Hiromichi Takemura, Yoshitaka Hayashi, Yasuo Murakami | 2006-05-02 |
| 7016096 | Transmission wavelength characteristics variable optical element, and wavelength characteristics variable apparatus, optical amplifier, and optical transmission system, using same | Hirotomo Izumi, Takashi Ishiwada | 2006-03-21 |
| 6956700 | Wavelength dispersion compensating apparatus | Shinji Maruyama | 2005-10-18 |
| 6931165 | Variable polarization plane rotator and optical device using same | Hiroshi Nagaeda, Kazuaki Akimoto | 2005-08-16 |
| 6923576 | Rolling bearing and belt continuously variable transmission | Susumu Tanaka, Shinji Fujita, Hideyuki Uyama | 2005-08-02 |
| 6909537 | Dispersion compensator whose transmission band is flattened | Yuichi Kawahata | 2005-06-21 |
| 6900940 | Optical apparatus and device | Hirotomo Izumi, Yuichi Kawahata | 2005-05-31 |
| 6894851 | Optical device | Yujin Yamazaki, Yuichi Kawahata, Hirohiko Sonoda | 2005-05-17 |
| 6862126 | TRANSMISSION WAVELENGTH CHARACTERISTICS VARIABLE OPTICAL ELEMENT, AND WAVELENGTH CHARACTERISTICS VARIABLE APPARATUS, OPTICAL AMPLIFIER, OPTICAL TRANSMISSION SYSTEM, AND CONTROL METHOD OF TRANSMISSION WAVELENGTH CHARACTERISTICS, USING SAME | Takashi Ishiwada, Hirotomo Izumi, Hiroshi Nagaeda | 2005-03-01 |
| 6829053 | Airgap type etalon and apparatus utilizing the same | Hiroshi Nagaeda | 2004-12-07 |
| 6826318 | Variable polarization plane rotator and optical device using same | Hiroshi Nagaeda, Kazuaki Akimoto | 2004-11-30 |
| 6807335 | Wavelength characteristic variable apparatus | Norihisa Naganuma | 2004-10-19 |
| 6807008 | Wavelength dispersion generation apparatus, multi-faced mirror used for wavelength dispersion generation apparatus, and method for manufacturing thereof | — | 2004-10-19 |
| 6646805 | Apparatus for variable wavelength dispersion and wavelength dispersion slope | Yuichi Kawahata | 2003-11-11 |
| 6478894 | Rolling bearing | Kazuo Sekino, Yasuo Murakami | 2002-11-12 |
| 6426022 | Process for producing thin film, thin film and optical instrument including the same | Ken Kawamata | 2002-07-30 |
| 6413188 | Toroidal type continuously variable transmission | Takashi Imanishi, Nobuo Goto, Makoto Fujinami, Hiroshi Kato, Hiroyuki Itoh +2 more | 2002-07-02 |
| 6358440 | Process for producing thin film, thin film and optical instrument including the same | Ken Kawamata | 2002-03-19 |
| 6332714 | Induction-hardened rolling bearing device | Hiromichi Takemura, Yasuo Murakami, Tomonobu Yoshikawa, Shuhei Kitano, Kazuhiko Hiraoka | 2001-12-25 |
| 6328669 | Toroidal type continuously variable transmission | Takashi Imanishi, Nobuo Goto, Makoto Fujinami, Hiroshi Kato, Hiroyuki Itoh +2 more | 2001-12-11 |
| 6210542 | Process for producing thin film, thin film and optical instrument including the same | Ken Kawamata | 2001-04-03 |
| 6196946 | Power roller bearing of toroidal type continuously variable transmission and method of manufacturing power roller bearing of toroidal type continuously variable transmission | Hiroyuki Sawai, Takafumi Kuwano, Nobuo Gotou, Takashi Imanishi | 2001-03-06 |
| 6176806 | Cam disk for toroidal type continuously variable transmission | Kiyoshi Okubo, Hiroyuki Itoh, Nobuo Goto, Makoto Fujinami, Hiroshi Kato +1 more | 2001-01-23 |
| 6174085 | Linear guide bearing device | Tomonobu Yoshikawa | 2001-01-16 |