P

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 patents
US6266299B1Jul 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 patents

CANON KK

1 patent