P

Inventor

MIYATAKE NORIO

US36 patents
⚠️ This page may combine multiple inventors who share the name “MIYATAKE NORIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

35 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
US6188649B1Feb 13, 2001

Method for reading magnetic super resolution type magneto-optical recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD76 citations96
US5202863AApr 13, 1993

Magneto-optical disk unit compatible with different two types of magneto-optical disks and a magnetic-field generator suitable thereof

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD58 citations96
US5724338AMar 3, 1998

Rewritable disk-shaped optical recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD48 citations95
US5422874AJun 6, 1995

Optical recording disk, and recording/reading apparatus using same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD67 citations95
US6628578B1Sep 30, 2003

Disklike storage medium and tracking method using the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations93
US6584046B2Jun 24, 2003

Method for reproducing information data from magneto-optical recording medium using linear polarized beam

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations93
US6252845B1Jun 26, 2001

High density optical disk, apparatus for reproducing optical disk and method for producing optical disk master

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD36 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
US5821004AOct 13, 1998

Magneto-optical recording medium and recording and reading out process using the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations92
US5618617AApr 8, 1997

Magneto-optic disk

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations92
US5341359AAug 23, 1994

Abnormality detection of a recording medium in a magneto-optical recording system

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations92
US4952295AAug 28, 1990

Method of producing a deposition film of composite material

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD33 citations92
US6587407B1Jul 1, 2003

Information reproducing method and information reproducing device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations84
US6061316AMay 9, 2000

Multi-track recording/reproducing apparatus, recording/reproducing method, and information recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations84
US6836457B2Dec 28, 2004

Information reproducing method and information reproducing device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US6178151B1Jan 23, 2001

Optical head having a reproducing optical system and filter formed by light passing therethrough

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations74
US6018505AJan 25, 2000

Magneto-optical disc apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations74
US5986977ANov 16, 1999

Method for reading magnetic super resolution type magneto-optical recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations74
US5517472AMay 14, 1996

Magnetic-field generator for use in a magneto-optical disk unit

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US5377172ADec 27, 1994

Modulated magnetic field generation circuit for magneto-optical disks

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US5247495ASep 21, 1993

Optical magnetic disk with separate regions provided on it

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations74
US5144602ASep 1, 1992

Magneto-optical information recording method and apparatus in which a laser beam oscillates in a track-width direction

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations73
US4613919ASep 23, 1986

Magnetic erasing head

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations67
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
US7002883B2Feb 21, 2006

Disk-shaped storage medium and tracking method using the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 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
US6887652B2May 3, 2005

High density optical disk, apparatus for reproducing optical disk and method for producing optical disk master

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations63
US6307819B1Oct 23, 2001

Method of reading magneto-optical recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63
US6269056B1Jul 31, 2001

Recording method for a magneto-optical recording medium for position adjustment of a magnetic head

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations63
US5748592AMay 5, 1998

Disk drive apparatus and disk storage medium for high density recording

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations63
US4096532AJun 20, 1978

Magnetic tape copying method and apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations57
US6222797B1Apr 24, 2001

Position adjustment method of a magnetic head using magneto-optical recording medium, and optical recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations52

PANASONIC CORP

1 patent