| Patent | Date |
|---|
Optical Disk And Optical Recording/reproducing Device
App 20110096644 - Takahashi; Akira ; et al. | 2011-04-28 |
Lapping Machine
App 20010044267 - TERASHIMA, SHIGEO ; et al. | 2001-11-22 |
Magneto-optical disk, optical pickup, and magneto-optical disk drive
Grant 5,907,525 - Ohta , et al. May 25, 1 | 1999-05-25 |
Magneto-optical disk, optical pickup, and magneto-optical disk drive
Grant 5,740,153 - Ohta , et al. April 14, 1 | 1998-04-14 |
Optical recording medium having pit rows on every other boundary and reproducing method thereof
Grant 5,673,250 - Mieda , et al. September 30, 1 | 1997-09-30 |
Magnetic spring arm assembly including structure for preventing damage to a conductive layer resulting from bending
Grant 5,612,840 - Hiraoka , et al. March 18, 1 | 1997-03-18 |
Device for controlling the motor of a recording and reproducing apparatus
Grant 5,581,521 - Nomura , et al. December 3, 1 | 1996-12-03 |
Method and apparatus for recording and reproducing information in black on a rewritable recording medium
Grant 5,434,991 - Maeda , et al. July 18, 1 | 1995-07-18 |
Disk recording and reproducing device
Grant 5,420,838 - Maeda , et al. May 30, 1 | 1995-05-30 |
Information recording and reproducing device with reproduction and automatic gain control circuit
Grant 5,361,247 - Fuji , et al. November 1, 1 | 1994-11-01 |
Access controlling device for use in an optical disk drive
Grant 5,311,490 - Matoba , et al. May 10, 1 | 1994-05-10 |
Optical disk recording and reproducing apparatus
Grant 5,301,174 - Matoba , et al. April 5, 1 | 1994-04-05 |
Apparatus for recording and reproducing information on and from an optical disk
Grant 5,278,814 - Deguchi , et al. January 11, 1 | 1994-01-11 |
Method and device for data management in an optical recording medium
Grant 5,274,617 - Terashima , et al. December 28, 1 | 1993-12-28 |
Optical disk recording/reproducing device utilizing a constant angular velocity method with a constant linear velocity formatted optical disk
Grant 5,182,741 - Maeda , et al. January 26, 1 | 1993-01-26 |
Semiconductor laser driving circuit with control circuit power voltage monitor for preventing inadvertent recording
Grant 5,170,389 - Numata , et al. December 8, 1 | 1992-12-08 |
Recording/reproducing device
Grant 5,153,861 - Maeda , et al. October 6, 1 | 1992-10-06 |
Recording/reproducing device
Grant 5,142,521 - Terashima , et al. August 25, 1 | 1992-08-25 |
Optical memory device for recording, reproducing or erasing information onto a recording medium, including a recorded region detecting circuit.
Grant 4,924,447 - Fuji , et al. May 8, 1 | 1990-05-08 |
Disc clamping device
Grant 4,920,437 - Washo , et al. April 24, 1 | 1990-04-24 |
Sync signal detection apparatus for accurately synchronizing reproduced data
Grant 4,862,443 - Tsuji , et al. August 29, 1 | 1989-08-29 |
Three-dimensional driving arrangement
Grant 4,766,584 - Sekimoto , et al. August 23, 1 | 1988-08-23 |
Three-dimensional driving arrangement
Grant 4,696,566 - Sekimoto , et al. September 29, 1 | 1987-09-29 |
Optical bar code reader
Grant 4,409,469 - Yasuda , et al. October 11, 1 | 1983-10-11 |
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