Inventor
MURAKAMI MOTOYOSHI
JP32 patents
⚠️ This page may combine multiple inventors who share the name “MURAKAMI MOTOYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
28 patentsUS6266299B1Jul 24, 2001
Magneto-optical disk having write-once identification marks and method for recording thereof
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD155 citations99
US6973015B1Dec 6, 2005
Optical disk, method for recording and reproducing additional information to and from optical disk, reproducing apparatus for optical disk, and recording and reproducing apparatus for optical disk
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD59 citations96
US6584046B2Jun 24, 2003
Method for reproducing information data from magneto-optical recording medium using linear polarized beam
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations93
US6767697B2Jul 27, 2004
Magneto-optical disk and method for producing same by initializing with a laser having a predetermined wavelength
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations92
US6519211B1Feb 11, 2003
Magneto-optical recording medium having magnetic domain shrinks and disappears
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations92
US5656370AAug 12, 1997
Optical recording medium
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD42 citations92
US5582891ADec 10, 1996
Optical disk substrate with land planes of uniform height
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations92
US4952295AAug 28, 1990
Method of producing a deposition film of composite material
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD33 citations92
US6018511AJan 25, 2000
Magneto-optical recording medium and readout method of the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations84
US6826131B2Nov 30, 2004
Magneto-optical recording medium having multiple magnetic layers
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations81
US6504797B1Jan 7, 2003
Magneto-optical recording medium having multiple magnetic layers and reproducing method thereof
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US6788624B2Sep 7, 2004
Method and apparatus for reproducing information from a magneto-optical recording medium
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations73
US5679386AOct 21, 1997
Optical disk formation member for making an optical disk substrate
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations73
US5518826AMay 21, 1996
Magneto-optical recording medium and method of manufacturing same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations73
US7414924B2Aug 19, 2008
Magneto-optical recording medium having watermark for preventing unauthorized copy
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63
US7251200B2Jul 31, 2007
Apparatus for reproducing information data from magneto-optical recording medium using linear polarized beam
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63
US7180831B2Feb 20, 2007
Magneto-optical recording medium having a recording layer of columnar structure
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations63
US7151716B2Dec 19, 2006
Magneto-optical recording medium having a transfer control layer
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations63
US6975564B2Dec 13, 2005
Magneto-optical recording medium for use in domain wall displacement detection system, and method for producing the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63
US6791908B2Sep 14, 2004
Magneto-optical recording medium having a transfer control layer
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations63
US5472758ADec 5, 1995
Optical recording medium for short-wavelength of laser beam and read/write/erase method using the medium
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations63
US7161876B2Jan 9, 2007
Magneto-optical recording medium, and method for recording information in a recording layer
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations62
US6853606B2Feb 8, 2005
Magneto-optical storage medium capable of transferring magnetic domain from recording layer to reproducing layer
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations62
US5565278AOct 15, 1996
Magneto-optical recording medium
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations62
US7012857B2Mar 14, 2006
Magneto optical recording medium having a multilayer recording film of different thickness
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations61
US6747919B2Jun 8, 2004
Magneto-optical recording medium, and method and apparatus for producing the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations61
US7436697B2Oct 14, 2008
Memory cell, memory using the memory cell, memory cell manufacturing method, and memory recording/reading method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations52
US7235313B2Jun 26, 2007
Magneto-optical recording medium, method of manufacturing magneto-optical recording medium, method of recording on magneto-optical recording medium, and method of reproduction from magneto-optical recording medium
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations52
PANASONIC CORP
3 patentsUS7590031B2Sep 15, 2009
Optical recording medium having BCA of write-once information
PANASONIC CORP5 citations74
US7535803B2May 19, 2009
Method for recording to and reproducing from a magnetic recording medium, recording and reproduction device for the same, and magnetic recording medium
PANASONIC CORP3 citations63
US7773343B2Aug 10, 2010
Magnetic recording medium, and manufacturing method, manufacturing apparatus, recording and reproduction method, and recording and reproduction apparatus for the same
PANASONIC CORP0 citations52