Issued Patents All Time
Showing 1–25 of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9442010 | Light measurement apparatus | — | 2016-09-13 |
| 8018803 | Information recording apparatus and method and computer program | Akira Shirota | 2011-09-13 |
| 8014256 | Optical pickup and information device | Masataka Izawa | 2011-09-06 |
| 7961579 | Information reproduction apparatus | Kazuo Kuroda | 2011-06-14 |
| 7948844 | Information recording/reproducing device and the like | Akira Shirota | 2011-05-24 |
| 7859965 | Recording device and method, reproducing device and method, recording/reproducing device and method, and computer program | Masufumi Asada, Kunihiko Horikawa, Akira Shirota | 2010-12-28 |
| 7852726 | Recording apparatus and recording medium, and computer program | Akira Shirota | 2010-12-14 |
| 7760606 | Recording apparatus and recording method, and computer program | Akira Shirota | 2010-07-20 |
| 7746741 | Information recording device and method, and computer program | Masahiro Kato | 2010-06-29 |
| 7623435 | Optical pickup device, and information recording and reproduction device | Fumihiko Sano | 2009-11-24 |
| 7518964 | Information record apparatus and method, and computer program product | — | 2009-04-14 |
| 7436742 | Optical recording device and aberration correction method | — | 2008-10-14 |
| 7154831 | Device and method for controlling tilt servo | Masahiro Kato | 2006-12-26 |
| 7099255 | Error counting apparatus for counting an error number of a pre-pit signal in an optical disc and method therefor | Masahiro Kato, Tatsuhiro Yone, Yuko Muramatsu, Shinji Suzuki | 2006-08-29 |
| 7042818 | Device and method for controlling tilt servo | Masahiro Kato | 2006-05-09 |
| 7016285 | Linking gap detecting device and method of optical recording medium | Masafumi Asada, Takakazu Sugiyama, Yuji Shimizu | 2006-03-21 |
| 6975574 | Device and method for controlling tilt servo | Masahiro Kato | 2005-12-13 |
| 6956802 | Aperture ratio measuring apparatus for optical recording medium with pre-pits | Masahiro Kato, Tatsuhiro Yone, Yuko Muramatsu, Shinji Suzuki | 2005-10-18 |
| 6954418 | APPARATUS FOR ADJUSTING SIGNAL LEVELS DERIVED FROM AN OPTICAL DISC TO BECOME EQUAL TO A REFERENCE LEVEL DETERMINED FROM AT LEAST ONE OF THE SIGNAL LEVELS OF THE SIGNALS AND FOR SYNTHESIZING THE SIGNALS | Masahiro Kato, Tatsuhiro Yone, Yuko Muramatsu, Shinji Suzuki | 2005-10-11 |
| 6928041 | Pre-pit detecting apparatus for optical recording medium | Masahiro Kato, Tatsuhiro Yone, Yuko Muramatsu, Shinji Suzuki | 2005-08-09 |
| 6925039 | Device and method for controlling tilt servo | Masahiro Kato | 2005-08-02 |
| 6891784 | Apparatus and method for re-executing pre-pit detection if pre-pits are not detected after changing reference level | Junji Tanaka, Shin Akabane, Takakazu Sugiyama | 2005-05-10 |
| 6865143 | Optical device including a calibrating unit for calibrating a level adjusting unit | Masahiro Kato, Tatsuhiro Yone, Yuko Muramatsu, Shinji Suzuki | 2005-03-08 |
| 6801488 | Pre-pit detecting apparatus for optical recording medium | Masahiro Kato, Tatsuhiro Yone, Yuko Muramatsu, Shinji Suzuki | 2004-10-05 |
| 6731662 | Laser light intensity controller | Fumihiko Sano | 2004-05-04 |