Issued Patents All Time
Showing 51–74 of 74 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7085297 | Driving method and driving circuit of light source apparatus | Hisashi Senga, Hiromichi Ishibashi, Shigeru Furumiya | 2006-08-01 |
| 7057994 | Apparatus and method for reproducing information from two types of optical disks having discrimination marks formed along tracks thereof | Hiromichi Ishibashi | 2006-06-06 |
| 7035192 | Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatus | Yasuo Kitaoka, Katsuhiko Kumagawa, Kazuhisa Yamamoto, Hidenori Wada | 2006-04-25 |
| 7010006 | Light source apparatus and its control method | Yasuo Kitaoka, Tosifumi Yokoyama, Kiminori Mizuuchi, Kazuhisa Yamamoto, Hisashi Senga +2 more | 2006-03-07 |
| 6958967 | Holographic optical information recording/reproducing device | Yasuo Kitaoka, Kazuhisa Yamamoto | 2005-10-25 |
| 6882607 | Optical head device and method for processing information based on prescribed division areas | Kousei Sano, Shin-ichi Kadowaki, Hiroaki Yamamoto, Seiji Nishino | 2005-04-19 |
| 6845113 | Coherent light source and recording/reproducing apparatus using the same | Yasuo Kitaoka, Kazuhisa Yamamoto | 2005-01-18 |
| 6829080 | Optical waveguide device and light source and optical apparatus using the same | Akihiro Morikawa, Yasuo Kitaoka, Kiminori Mizuuchi, Kazuhisa Yamamoto | 2004-12-07 |
| 6819646 | Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatus | Yasuo Kitaoka, Katsuhiko Kumagawa, Kazuhisa Yamamoto, Hidenori Wada | 2004-11-16 |
| 6785457 | Optical waveguide device and coherent light source and optical apparatus using the same | Kiminori Mizuuchi, Kazuhisa Yamamoto, Yasuo Kitaoka | 2004-08-31 |
| 6744707 | Optical head device, inclination detection apparatus using the same, and optical information processing apparatus using the same | Kousei Sano, Shin-ichi Kadowaki, Hiroaki Yamamoto, Seiji Nishino | 2004-06-01 |
| 6738326 | Apparatus and method for reproducing information from two types of optical disks having discrimination marks formed along tracks thereof | Hiromichi Ishibashi | 2004-05-18 |
| 6665257 | Optical head device, inclination detection apparatus using the same, and optical information processing apparatus using the same | Kousei Sano, Shin-ichi Kadowaki, Hiroaki Yamamoto, Seiji Nishino | 2003-12-16 |
| 6650612 | Optical head and recording reproduction method | Keiichi Matsuzaki, Teruhiro Shiono, Tetsuo Saimi | 2003-11-18 |
| 6442114 | Optical disk signal reproducing apparatus and crosstalk canceling system for use therein | Hiromichi Ishibashi | 2002-08-27 |
| 6441970 | Optical waveguide device, and light source device and optical apparatus including the optical waveguide device | Yasuo Kitaoka, Kiminori Mizuuchi, Kazuhisa Yamamoto | 2002-08-27 |
| 6418107 | Optical head device, inclination detection apparatus using the same, and optical information processing apparatus using the same | Kousei Sano, Shin-ichi Kadowaki, Hiroaki Yamamoto, Seiji Nishino | 2002-07-09 |
| 6418095 | Optical head device, inclination detection apparatus using the same, and optical information processing apparatus using the same | Kousei Sano, Shin-ichi Kadowaki, Hiroaki Yamamoto, Seiji Nishino | 2002-07-09 |
| 6327231 | Optical head device with zero-cross point correction | Kousei Sano, Shin-ichi Kadowaki, Hiroaki Yamamoto, Seiji Nishino | 2001-12-04 |
| 6317546 | Optical waveguide device, and light source device and optical apparatus including the optical waveguide device | Yasuo Kitaoka, Kiminori Mizuuchi, Kazuhisa Yamamoto | 2001-11-13 |
| 6314068 | Optical head device, inclination detection apparatus using the same, and optical information processing apparatus using the same | Kousei Sano, Shin-ichi Kadowaki, Hiroaki Yamamoto, Seiji Nishino | 2001-11-06 |
| 6292441 | Optical head device, optical information apparatus, and method for detecting focus error signal | Hiroaki Yamamoto, Daisuke Ogata, Seiji Nishino, Hidenori Wada, Sadao Mizuno | 2001-09-18 |
| 6111842 | Optical head | Seiji Nishino, Hiroaki Yamamoto, Shin-ichi Kadowaki | 2000-08-29 |
| 5737296 | Focus and tracking error detection by using plus and minus first order diffracted light | Yoshiaki Komma, Seiji Nishino, Hiroaki Yamamoto | 1998-04-07 |