Issued Patents All Time
Showing 26–50 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7085211 | Optical recording/reproducing method and apparatus | — | 2006-08-01 |
| 7020066 | Optical information recording medium, optical information recording apparatus, information processing apparatus, optical information recording method, program and recording medium | — | 2006-03-28 |
| 6987717 | Optical disk device recording data on a recordable or rewritable optical disk by setting a recording velocity and a recording power for each of zones on an optical disk | Kei Hagiwara | 2006-01-17 |
| 6944106 | Information recording apparatus for controlling recording power of a recording medium | — | 2005-09-13 |
| 6795384 | Method and apparatus for recording data at accurate location on recording medium | — | 2004-09-21 |
| 6791922 | Information recording device that can resume recording process at correct location on recording medium | — | 2004-09-14 |
| 6787748 | High speed sampling circuit | — | 2004-09-07 |
| 6744031 | High speed sampling circuit | — | 2004-06-01 |
| 6693140 | Container comprising foamed olefin resin and process for producing same | Seiji Shiromoto, Akinobu Sakamoto | 2004-02-17 |
| 6621780 | Optical recording/reproducing method and apparatus | — | 2003-09-16 |
| 6333903 | Disk unit and rotating motor control apparatus for recordable optical disk unit | — | 2001-12-25 |
| 6288168 | Propylene based resin composition | Seiji Shiromoto, Tatsuhiro Nagamatsu | 2001-09-11 |
| 6128261 | Disk unit and rotating motor control apparatus for recordable optical disk unit | — | 2000-10-03 |
| 6087443 | Thermoplastic resin composition | Hajime Sadatoshi | 2000-07-11 |
| 5852100 | Thermoplastic resin composition | Hajime Sadatoshi, Yuichi Miyake, Takao Nomura, Takeyoshi Nishio | 1998-12-22 |
| 5631886 | Tracking control apparatus for optical disk | — | 1997-05-20 |
| 5604722 | Access control method and device of disk unit | — | 1997-02-18 |
| 5521892 | Closed-loop control system and servo device of optical disk unit | — | 1996-05-28 |
| 5487055 | Information recorder with tracking and seeking operations using low frequency tracking and lens position signals | — | 1996-01-23 |
| 5442607 | Jump pulse corrector and optical disk unit | — | 1995-08-15 |
| 5375108 | Optical disk device and method for controlling head movement thereof | — | 1994-12-20 |
| 5371726 | Velocity controlling apparatus | — | 1994-12-06 |
| 5309418 | Track counting device using a PLL | — | 1994-05-03 |
| 5222057 | Tracking servo method used in an optical disk drive unit | Toshihiro Shigemori | 1993-06-22 |
| 5218588 | Focus offset correction method | — | 1993-06-08 |