P

Inventor

AKIYAMA TETSUYA

JP33 patents
⚠️ This page may combine multiple inventors who share the name “AKIYAMA TETSUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

28 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
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
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
US6975571B1Dec 13, 2005

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

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations92
US5883720AMar 16, 1999

Method of measuring a film thickness of multilayer thin film

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD36 citations92
US5681632AOct 28, 1997

Optical information recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD36 citations92
US7088656B2Aug 8, 2006

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

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US7075870B2Jul 11, 2006

Recording/reproducing apparatus for optical information recording medium and optical head

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations74
US6934243B2Aug 23, 2005

Optical information recording medium, recording/reproducing apparatus and recording /reproducing method for the same, and method for manufacturing optical information recording medium

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
US6754143B2Jun 22, 2004

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

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US6487147B2Nov 26, 2002

Optical information recording medium and an optical information recording/reproduction device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations74
US5395669AMar 7, 1995

Optical record medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations74
US5674649AOct 7, 1997

Method of recording information

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations73
US5665520ASep 9, 1997

Optical recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations73
US5147701ASep 15, 1992

Information recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations73
US6922387B1Jul 26, 2005

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

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63
US6744706B2Jun 1, 2004

Optical system with tracking controller

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations63
US6661749B1Dec 9, 2003

Substrate for optical recording medium, optical recording medium, master disc, master disc recording apparatus, and signal generating apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63
US7251202B2Jul 31, 2007

Substrate for optical recording medium, optical recording medium, master disc, master disc recording apparatus, and signal generating apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations52
US7158458B2Jan 2, 2007

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

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations52
US7123570B2Oct 17, 2006

Recording/reproducing apparatus with optical path correction system

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations52
US7020065B2Mar 28, 2006

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

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations52
US6469964B1Oct 22, 2002

Optical recording medium and recording/reproduction method and apparatus therefor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations52
US5256518AOct 26, 1993

Information storage disk employing a reflective layer having good malleability

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations52
US7088668B1Aug 8, 2006

Optical recording medium with address information composed of pits

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations48
US7292514B2Nov 6, 2007

Apparatus for recording information in information recording medium, information recording medium, method for recording information in information recording medium, program for recording information in information recording medium, and program product

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations42

KOMATSU MFG CO LTD

2 patents

PANASONIC CORP

2 patents

TAKAOKA TOMOYASU

1 patent