Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8036254 | Semiconductor laser driving circuit, and optical disc device and integrated circuit provided with semiconductor laser driving circuit | Hisashi Senga, Takeharu Yamamoto | 2011-10-11 |
| 7697400 | Optical pickup and optical disc device | Hisashi Senga, Tomotada Kamei, Hideki Hayashi, Yohichi Saitoh | 2010-04-13 |
| 7420889 | Optical disc tracking control device, tracking control method, and tracking control program | Eiji Ueda, Masahiro Birukawa | 2008-09-02 |
| 7397830 | Semiconductor laser device | Katsumi Gotoh, Takatoshi Yukimasa, Makoto Ichinose | 2008-07-08 |
| 7339869 | Optical disk and optical method | Yasumori Hino, Takahiro Nagai, Hideshi Ishihara, Shinichi Tanaka | 2008-03-04 |
| 7266073 | Optical disc apparatus, camera apparatus, and method for controlling light emission operation | Akira Yoshikawa, Makoto Ichinose, Katsumi Gotoh, Takatoshi Yukimasa | 2007-09-04 |
| 7180842 | Optical disc cutting apparatus and method for manufacturing optical disc | Keiji Nishikiori, Yasumori Hino, Masahiro Birukawa | 2007-02-20 |
| 6980490 | Optical disk and manufacturing method for the same | Yasumori Hino, Yasuyuki Miyaoka, Hirotake Ando | 2005-12-27 |
| 6567350 | Method for adjusting control operation in an optical disc recording device | Yuji Takagi, Keiichi Kawashima, Hiroshi Sugimoto, Hirofumi Ide | 2003-05-20 |
| 5615188 | Recording method and recording and reproducing apparatus for optical disk | Takashi Ishida, Shunji O'Hara, Tadashige Furutani | 1997-03-25 |
| 5559782 | Recording method and recording and reproducing apparatus for optical disk | Takashi Ishida, Shunji O'Hara, Tadashige Furutani | 1996-09-24 |
| 5467330 | Recording method and recording and reproducing apparatus for optical disk | Takashi Ishida, Shunji O'Hara, Tadashige Furutani | 1995-11-14 |
| 5351225 | Optical recording and reproducing apparatus having a plurality of light spots | Takashi Ishida, Shunji O'Hara, Toshio Satoh | 1994-09-27 |
| 5331620 | Recording method and recording apparatus for optical disk | Takashi Ishida, Shunji O'Hara, Tadashige Furutani | 1994-07-19 |
| 5268654 | Phase locked loop clock changeover apparatus in which the VCO is set to an initial value | Tadashige Furutani, Mayumi Hironaka, Chikashi Inokuchi | 1993-12-07 |
| 5202873 | AGC circuit for optical disk data reproducing apparatus using ALPC period detector | Motoshi Ito, Takashi Inoue, Shunji O'Hara | 1993-04-13 |
| 5161243 | Tracking system for an optical recording/reproducing apparatus having a plurality of light spots | Takashi Ishida, Shunji O'Hara, Toshio Satoh | 1992-11-03 |
| 5140580 | Optical disk apparatus operative with optimal recording power setting | Shunji Ohara, Mitsuro Moriya, Yoshihisa Fukushima | 1992-08-18 |
| 5128911 | Optical disc reproducing apparatus having an automatic gain control circuit | Motoshi Ito, Shunji Ohara | 1992-07-07 |
| 4845720 | Semiconductor laser control circuit | Kenji Koishi, Shinji Kubota | 1989-07-04 |
| 4568165 | Focus adjusting device for camera | — | 1986-02-04 |
| 4563708 | Method and apparatus for controlling storage time in charge storing photoelectric converter | — | 1986-01-07 |
| 4547676 | Photosensor apparatus with light integration control | Takeomi Suzuki, Isamu Hashimoto | 1985-10-15 |
| 4482237 | Device for detecting stop value data from flash unit used with camera | — | 1984-11-13 |