Issued Patents All Time
Showing 76–100 of 109 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6741531 | Information-signal recording and reproducing apparatus | — | 2004-05-25 |
| 6728178 | Semiconductor laser control method and semiconductor laser control device | Kenji Koishi, Yoshiyuki Miyabata, Makoto Usui, Kohjyu Konno, Tomonori Ueno +2 more | 2004-04-27 |
| 6728170 | Information-signal recording and reproducing apparatus | — | 2004-04-27 |
| 6711103 | Disk type determining apparatus, optical disk reproducing apparatus and tracking error signal generating apparatus | — | 2004-03-23 |
| 6678236 | Information recording medium method and apparatus for recording and reproducing information | — | 2004-01-13 |
| 6657935 | Method and apparatus for recording information on recording medium | Hideharu Eguchi, Osamu Yanagisawa, Yutaka Osada, Kenji Koishi, Makoto Usui +2 more | 2003-12-02 |
| 6608805 | Disk type determining apparatus, optical disk reproducing apparatus and tracking error signal generating apparatus | — | 2003-08-19 |
| 6597641 | Information-signal recording and reproducing apparatus | — | 2003-07-22 |
| 6594203 | Information-signal recording and reproducing apparatus | — | 2003-07-15 |
| 6496456 | Power saving system for optical disc recording/reproducing apparatus | — | 2002-12-17 |
| 6496459 | Method and apparatus for recording and reproducing information on and from optical disc | — | 2002-12-17 |
| 6473377 | OPTICAL DISC RECORD CARRIER WITH WOBBLED GROOVES THAT PERMIT RECORDING ON THE GROOVES AND LANDS, APPARATUS FOR MANUFACTURING SUCH A RECORD CARRIER, AND RECORDING AND/OR REPRODUCING APPARATUS FOR SUCH A RECORD CARRIER | Hideharu Eguchi, Atsushi Hosoda, Ichiro Ueno | 2002-10-29 |
| 6456573 | Information recording and reproducing apparatus | Yutaka Osada, Osamu Yanagisawa, Chikashi Inokuchi, Yuuichi Kamioka, Kohjyu Konno | 2002-09-24 |
| 6404713 | Method and apparatus for recording and reproducing information on and from optical disc | — | 2002-06-11 |
| 6310848 | Power saving system for optical disc recording/reproducing apparatus | — | 2001-10-30 |
| 6292458 | Optical disc record carrier with wobbled grooves that permit recording on the grooves and lands, apparatus for manufacturing such a record carrier, and recording and/or reproducing apparatus for such a record carrier | Hideharu Eguchi, Atsushi Hosoda, Ichiro Ueno | 2001-09-18 |
| 6285632 | Information-signal recording and reproducing apparatus | — | 2001-09-04 |
| 6249494 | Disk type determining apparatus, optical disk reproducing apparatus and tracking error signal generating apparatus | — | 2001-06-19 |
| 6052344 | Disk type, determining apparatus, optical disk reproducing apparatus and tracking error signal generating apparatus | — | 2000-04-18 |
| 5808989 | Optical disk recording and/or reproducing apparatus for performing optimizing operation for servo control with recording and/or reproducing operation | Hideaki Yamagami, Takeshi Aizawa | 1998-09-15 |
| 5612939 | Optical disk recording and/or reproducing apparatus for performing optimizing operation for servo control with recording and/or reproducing operation | Hideaki Yamagami, Takeshi Aizawa | 1997-03-18 |
| RE35469 | Disc record/reproduce apparatus with brushless motor having rotational speed controlled by a disc | — | 1997-03-04 |
| RE35019 | Small-size magnetic disk drive mechanism with hermetically sealed chamber | Tatsuya Miki | 1995-08-15 |
| 5350987 | Detection of position of rotor in brushless DC motor | — | 1994-09-27 |
| 5304902 | Apparatus for driving a brushless DC motor | — | 1994-04-19 |