Issued Patents All Time
Showing 26–50 of 88 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7471609 | Hologram reproduction apparatus and reproduction method | Michikazu Hashimoto | 2008-12-30 |
| 7263040 | Read/write position controller for optical pickup | Kazuo Takahashi | 2007-08-28 |
| 7257056 | Optical pickup tracking controller and optical pickup tracking control method | — | 2007-08-14 |
| 7164631 | Information recording apparatus | Junichi Furukawa | 2007-01-16 |
| 7109462 | Light beam output control apparatus, optical pickup apparatus, light beam emission control method and computer-readable recorded medium in which light beam emission control program is recorded | Junichi Furukawa | 2006-09-19 |
| 7095060 | Unit for driving light-emitting device | — | 2006-08-22 |
| 6970405 | Optical recording/reproducing apparatus | Kazuo Takahashi | 2005-11-29 |
| 6958966 | Control device for optical disk player that corrects rotational frequency data based on input data | Ichiro Sugai | 2005-10-25 |
| 6920096 | Rotation controlling apparatus for optical recording medium | — | 2005-07-19 |
| 6888782 | Servo controller having unit for compensating error signal during dropout | Masaki Kobayashi | 2005-05-03 |
| 6791916 | Servo control apparatus for optical disc driver | Kazuo Takahashi | 2004-09-14 |
| 6775210 | Optical pickup tracking controller and optical pickup tracking control method | — | 2004-08-10 |
| 6741041 | Power controller | Mitsuru Sato | 2004-05-25 |
| 6738327 | Servo control apparatus for optical disc player | Masaki Kobayashi | 2004-05-18 |
| 6603716 | Optical pickup direction detection unit and optical pickup direction detection method | Mitsuru Sato | 2003-08-05 |
| 6584048 | Focus jump device for reproducing information from a storage medium | Kazuo Takahashi | 2003-06-24 |
| 6501711 | Pickup drive apparatus, pickup drive method, and recording/reproducing apparatus | Mitsuru Sato, Ikuya Kikuchi | 2002-12-31 |
| 6442111 | Track jump apparatus | Kazuo Takahashi | 2002-08-27 |
| 6442112 | Method of and apparatus for detecting and compensating deviation in servo control systems | — | 2002-08-27 |
| 6411576 | Aberration compensation device, and an optical pickup and an information reproducing/recording apparatus employing the same | Junichi Furukawa | 2002-06-25 |
| 6396234 | Servo control apparatus and servo control method | — | 2002-05-28 |
| 6388967 | Liquid crystal driving signal generating apparatus and optical disk reproducing apparatus with liquid crystal driving signal generating apparatus | Junichi Furukawa, Noriaki Murao, Hiroaki Abe | 2002-05-14 |
| 6282160 | Disc player | Mitsuru Sato | 2001-08-28 |
| 6259663 | Signal compensating apparatus, information reproducing apparatus and information recording apparatus | — | 2001-07-10 |
| 6239572 | Servo control apparatus | — | 2001-05-29 |