P

Inventor

NARUMI KENJI

JP74 patents
⚠️ This page may combine multiple inventors who share the name “NARUMI KENJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

29 patents
US6411575B1Jun 25, 2002

Optical recording medium having an area for recording a plurality of recording/reproduction conditions to be used in recording/reproduction apparatuses and recording/reproduction method and apparatus therefor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD116 citations99
US7193948B2Mar 20, 2007

Optical recording medium, method for recording on optical record medium, and apparatus for recording on optical record medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD69 citations98
US7376058B2May 20, 2008

Optical information recording medium containing a plurality of recording layers provided with characteristics to achieve optimum recording conditions

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD47 citations96
US6487151B1Nov 26, 2002

Optical information recording and reproducing system with overwrite capability and recording medium for use therewith

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD47 citations96
US6031814AFeb 29, 2000

Optical disk with stop-pulse generating means in a guide groove

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD42 citations96
US6707776B2Mar 16, 2004

Recording and reproducing method of optical information recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations93
US6535468B2Mar 18, 2003

Optical recording medium having an area for recording a plurality of recording/reproduction conditions to be used in recording/reproduction apparatuses and recording/reproduction method and apparatus therefor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations93
US6529457B1Mar 4, 2003

Optical information recording medium, optical information recording apparatus, and method of recording test signal on the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations93
US6480449B1Nov 12, 2002

Optical information recording medium, optical information recording apparatus, and method of recording test signal on the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations93
US6414922B1Jul 2, 2002

Optical recording medium having an area for recording a plurality of recording/reproduction conditions to be used in recording/reproduction apparatuses and recording/reproduction method and apparatus therefore

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations93
US6031800AFeb 29, 2000

Method for writing and reading optical recording medium with varying writing start points

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations93
US6975571B1Dec 13, 2005

Method for optically recording information and device for optically recording information by the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations92
US7088656B2Aug 8, 2006

Method for optically recording information and device for optically recording information by the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US6906988B1Jun 14, 2005

Method and apparatus for recording/reproducing information with respect to optical recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US6893698B2May 17, 2005

Optical information recording medium, optical measuring method and optical information recording/reproducing method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations74
US6754143B2Jun 22, 2004

Optical information recording medium, and method and apparatus for recording/reproducing information thereon

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US6163514ADec 19, 2000

Method and apparatus for writing and reading optical recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations74
US6115343ASep 5, 2000

Method and apparatus for writing and reading optical recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations74
US6097682AAug 1, 2000

Method and apparatus for writing and reading optical recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations74
US7116623B2Oct 3, 2006

Optical information recording method, optical information recording device and optical information recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations63
US6922387B1Jul 26, 2005

Optical information recording medium, and method and apparatus for recording/reproducing information thereon

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63
US6700849B2Mar 2, 2004

Method and apparatus for writing and reading optical recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations63
US6697313B2Feb 24, 2004

Optical information recording and reproducing system with overwrite capability and recording medium for use therewith

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations63
US6683739B2Jan 27, 2004

Optical information recording and reproducing system with overwrite capability and recording medium for use therewith

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations63
US6526013B1Feb 25, 2003

Optical information recording medium, optical information recording apparatus, and method of recording test signal on the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations63
US6526012B1Feb 25, 2003

Optical information recording medium, optical information recording apparatus, and method of recording test signal on the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations63
US6483788B1Nov 19, 2002

Method and apparatus for writing and reading optical recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations63
US6111836AAug 29, 2000

Method and apparatus for writing and reading optical recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations63
US6108290AAug 22, 2000

Method and apparatus for writing and reading optical recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations63

PANASONIC IP MAN CO LTD

10 patents

PANASONIC CORP

7 patents

TOKAI RIKA CO LTD

3 patents

TOYOTA MOTOR CO LTD

1 patent

Showing the top 50 of 74 patents by PatentIndex Score.