Inventor
HISAKADO YUJI
JP21 patents
Patents
21 patentsUS5729525AMar 17, 1998
Two-layer optical disk
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD96 citations98
US6044051AMar 28, 2000
Optical information recording/reproducing device and method for recording, reproducing and erasing information on an optical information recording medium utilizing light beam radiation
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD76 citations96
US5930225AJul 27, 1999
Two-layer optical disk
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD55 citations96
US5872767AFeb 16, 1999
Optical disk and an optical disk recording/reproduction device having address blocks located on boundary lines between adjoining tracks
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD59 citations96
US5862112AJan 19, 1999
Optical disk and an optical disk recording reproduction device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD49 citations96
US5517484AMay 14, 1996
Optical disk and optical disk recording and reproducing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD69 citations96
US5406534AApr 11, 1995
Double-sided recordable optical disk suitable for a substituting process and a method for performing defect management
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD76 citations96
US6172952B1Jan 9, 2001
Optical disk device with abnormal jump detection
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD58 citations95
US7123574B2Oct 17, 2006
Recording medium, method and apparatus for recording, and method and apparatus for reproducing
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD21 citations93
US5457794AOct 10, 1995
Information retrieval apparatus for searching target literature data from an information recording medium, including reuse of past retrieving results
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations93
US6621779B1Sep 16, 2003
Laser power controller and optical disk device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD24 citations92
US6236629B1May 22, 2001
Optical disk device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations92
US5831951ANov 3, 1998
Method and apparatus for controlling a slice signal in the reproduction information recorded in an optical disk
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations92
US5469418ANov 21, 1995
Optical information write/read device and method for writing data
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations92
US6205095B1Mar 20, 2001
Optical disk device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations83
US6973020B2Dec 6, 2005
Recording medium, method and apparatus for reproducing, and method and apparatus for recording
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations74
US6195320B1Feb 27, 2001
Optical disk signal processing method and optical disk device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations74
USRE39306ESep 26, 2006
Optical disc device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations63
US6434098B2Aug 13, 2002
Optical disc device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations63
USRE39952EDec 25, 2007
Laser power controller and optical disk device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations62
US7239586B2Jul 3, 2007
Optical disk device and recording power determining method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations62