Issued Patents All Time
Showing 76–100 of 134 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7370972 | Two-dimensional image display device | Akihiro Morikawa, Ken'ichi Kasazumi | 2008-05-13 |
| 7339960 | Optical device, laser beam source, laser apparatus and method of producing optical device | Kazuhisa Yamamoto, Yasuo Kitaoka, Makoto Kato | 2008-03-04 |
| 7304880 | Electric switch and memory device using the same | Kazuhisa Yamamoto, Tomoya Sugita, Akihiro Morikawa | 2007-12-04 |
| 7295742 | Optical element and method for producing the same | Tomoya Sugita, Kazuhisa Yamamoto | 2007-11-13 |
| 7295583 | Optical device, laser beam source, laser apparatus and method of producing optical device | Kazuhisa Yamamoto, Yasuo Kitaoka, Makoto Kato | 2007-11-13 |
| 7271962 | Two-dimensional image formation apparatus | Ken'ichi Kasazumi, Kazuhisa Yamamoto | 2007-09-18 |
| 7236674 | Optical waveguide device, coherent light source using the same and optical apparatus having the same | Kazuhisa Yamamoto, Minoru Imaeda, Tatsuo Kawaguchi, Takashi Yoshino | 2007-06-26 |
| 7230753 | Method for forming domain-inverted structure and optical element with domain-inverted structure | Akihiro Morikawa, Tomoya Sugita | 2007-06-12 |
| 7171094 | Optical waveguide device, optical waveguide laser using the same and optical apparatus equipped with the same | Kazuhisa Yamamoto, Minoru Imaeda, Tatsuo Kawaguchi, Takashi Yoshino | 2007-01-30 |
| 7154837 | Optical pickup and optical information recording/reproducing device | Ken'ichi Kasazumi, Yasuo Kitaoka, Kazuhisa Yamamoto | 2006-12-26 |
| 7139233 | Optical information processing device and recording medium | Kazuhisa Yamamoto | 2006-11-21 |
| 7133428 | Optical apparatus and method for producing the same | Yasuo Kitaoka, Kazuhisa Yamamoto, Makoto Kato, Kenichi Nishiuchi | 2006-11-07 |
| 7101723 | Optical device, laser beam source, laser apparatus and method of producing optical device | Kazuhisa Yamamoto, Yasuo Kitaoka, Makoto Kato | 2006-09-05 |
| 7065035 | Optical multilayer disk, multiwavelength light source, and optical system using them | Kazuhisa Yamamoto, Rie Kojima, Noboru Yamada | 2006-06-20 |
| 7010006 | Light source apparatus and its control method | Ken'ichi Kasazumi, Yasuo Kitaoka, Tosifumi Yokoyama, Kazuhisa Yamamoto, Hisashi Senga +2 more | 2006-03-07 |
| 6999668 | Method for manufacturing optical waveguide device, optical waveguide device, and coherent light source and optical apparatus using the optical waveguide device | Toshifumi Yokoyama | 2006-02-14 |
| 6914918 | Optical device, laser beam source, laser apparatus and method of producing optical device | Kazuhisa Yamamoto, Yasuo Kitaoka, Makoto Kato | 2005-07-05 |
| 6829080 | Optical waveguide device and light source and optical apparatus using the same | Akihiro Morikawa, Ken'ichi Kasazumi, Yasuo Kitaoka, Kazuhisa Yamamoto | 2004-12-07 |
| 6785457 | Optical waveguide device and coherent light source and optical apparatus using the same | Kazuhisa Yamamoto, Ken'ichi Kasazumi, Yasuo Kitaoka | 2004-08-31 |
| 6711183 | Optical wavelength conversion device, coherent light generator, and optical information processing apparatus | Kazuhisa Yamamoto, Yasuo Kitaoka | 2004-03-23 |
| 6704337 | Wavelength-variable semiconductor laser, optical integrated device utilizing the same, and production method thereof | Yasuo Kitaoka, Kazuhisa Yamamoto | 2004-03-09 |
| 6693936 | Wavelength-variable semiconductor laser, optical integrated device utilizing the same, and production method thereof | Yasuo Kitaoka, Kazuhisa Yamamoto | 2004-02-17 |
| 6631231 | Optical waveguide elements, optical wavelength conversion elements, and process for producing optical waveguide elements | Kazuhisa Yamamoto, Tatsuo Kawaguchi, Takashi Yoshino, Minoru Imaeda, Kenji Aoki +1 more | 2003-10-07 |
| 6590915 | Optical apparatus and method for producing the same | Yasuo Kitaoka, Kazuhisa Yamamoto, Makoto Kato, Tomoaki Uno, Kenichi Nishiuchi | 2003-07-08 |
| 6519077 | OPTICAL WAVEGUIDE, OPTICAL WAVELENGTH CONVERSION DEVICE, METHOD FOR PRODUCING THE SAME, SHORT WAVELENGTH LIGHT GENERATION APPARATUS USING THE SAME, OPTICAL INFORMATION PROCESSING APPARATUS USING THE SAME, COHERENT LIGHT GENERATION APPARATUS USING THE SAME, AND OPTICAL SYSTEM USING THE SAME | Kazuhisa Yamamoto, Yasuo Kitaoka, Toshifumi Yokoyama | 2003-02-11 |