Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7839908 | Mode control waveguide laser device | Takayuki Yanagisawa, Yoshihito Hirano, Syuhei Yamamoto, Kiyohide Sakai, Yasuharu Koyata | 2010-11-23 |
| 7778291 | Wavelength converting laser device | Yasuharu Koyata, Yoshihito Hirano, Kouhei Teramoto, Shigenori Shibue | 2010-08-17 |
| 7724413 | Speckle removing light source and lighting apparatus | Yasuharu Koyata, Yoshihito Hirano, Kiyohide Sakai, Shinsuke Shikama, Jiro Suzuki +3 more | 2010-05-25 |
| 7693194 | Fundamental-wave light source and wavelength converter | Kiyohide Sakai, Yasuharu Koyata, Yoshihito Hirano, Kouhei Teramoto, Shigenori Shibue | 2010-04-06 |
| 7643707 | Lighting apparatus | Yasuharu Koyata, Yoshihito Hirano, Kiyohide Sakai, Shinsuke Shikama, Jiro Suzuki +3 more | 2010-01-05 |
| 7605973 | Optical wavelength conversion light source | Kiyohide Sakai, Yasuharu Koyata, Kouhei Teramoto, Shigenori Shibue | 2009-10-20 |
| 7403549 | Wavelength conversion laser and image display | Yasuharu Koyata, Yoshihito Hirano, Kouhei Teramoto, Shigenori Shibue | 2008-07-22 |
| 7301974 | Wavelength monitoring apparatus | Yoshihito Hirano, Makoto Satou, Kenji Masuda, Akihiro Adachi, Shinichi Takagi +1 more | 2007-11-27 |
| 7283302 | Wavelength filter and wavelength monitor device | Yoshihito Hirano, Makoto Sato, Akihiro Adachi, Shinichi Takagi, Yasunori Nisimura | 2007-10-16 |
| 7239654 | Wave length plate, wavelength filter and wavelength monitor | Syuhei Yamamoto, Youhei Mikami, Yoshihito Hirano, Makoto Satou, Kenji Masuda +2 more | 2007-07-03 |
| 6836489 | Method of and apparatus for controlling wavelength variable semiconductor laser without preparing a high-precision current table | Tetsuya Nishimura, Mitsunobu Gotoda, Yoshihito Hirano | 2004-12-28 |
| 6801553 | Wavelength monitor and semiconductor laser device | Yoshihito Hirano, Makoto Sato, Kenji Masuda, Akihiro Adachi, Yasunori Nishimura +1 more | 2004-10-05 |
| 6639923 | Semiconductor laser device for optical communication | Makoto Sato, Kenji Masuda, Akihiro Adachi, Yasunori Nishimura, Shinichi Takagi +1 more | 2003-10-28 |
| 6567437 | Wavelength monitoring device and its adjusting method, and wavelength stabilizing light source and transmission system having plural wavelength stabilizing light source | Yoshihito Hirano, Makoto Satou, Kenji Masuda, Takeshi Nakamura | 2003-05-20 |