Inventor
HARIGAYA MAKOTO
JP46 patents
Patents
46 patentsUS6280684B1Aug 28, 2001
Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of fabricating the optical recording medium
RICOH KK320 citations99
US6548137B2Apr 15, 2003
Phase-change optical recording medium and recording method and apparatus for the same
RICOH KK60 citations96
US6479121B1Nov 12, 2002
Optical recording medium and method of fabricating same
RICOH KK65 citations96
US6319368B1Nov 20, 2001
Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of forming recording layer for the optical recording medium
RICOH KK46 citations96
US6127016AOct 3, 2000
Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of fabricating the optical recording medium
RICOH KK40 citations96
US6096398AAug 1, 2000
Phase-change optical recording medium
RICOH KK58 citations96
US5948496ASep 7, 1999
Optical recording medium
RICOH KK59 citations96
US5785828AJul 28, 1998
Sputtering target for producing optical recording medium
RICOH KK54 citations96
US5761179AJun 2, 1998
Phase-change optical recording method using pulse width modulation technique
RICOH KK54 citations96
US5740149AApr 14, 1998
Phase-change type optical recording and reproducing method
RICOH KK67 citations96
US5736657AApr 7, 1998
Sputtering target
RICOH KK86 citations96
US5100700AMar 31, 1992
Information recording medium
RICOH KK54 citations96
US5080947AJan 14, 1992
Information recording medium
RICOH KK61 citations96
US5024927AJun 18, 1991
Information recording medium
RICOH KK53 citations96
US5620767AApr 15, 1997
Light reflecting and heat dissipating material and optical information recording medium using the same
RICOH KK62 citations95
US6652806B2Nov 25, 2003
Method of producing a sputtering target
RICOH KK14 citations93
US6221557B1Apr 24, 2001
Optical information recording medium
RICOH KK44 citations93
US5095479AMar 10, 1992
Optical information recording medium
RICOH KK51 citations93
US5011723AApr 30, 1991
Optical information recording medium
RICOH KK52 citations93
US6790592B2Sep 14, 2004
Phase-change optical information recording medium
RICOH KK23 citations92
US6503592B1Jan 7, 2003
Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of fabricating the optical recording medium
RICOH KK24 citations92
US5882493AMar 16, 1999
Heat treated and sintered sputtering target
RICOH KK25 citations92
US5875160AFeb 23, 1999
Method and device for initializing optical recording medium of phase change type, and optical recording medium
RICOH KK20 citations92
US5646924AJul 8, 1997
Recording and simultaneous verifying method of phase-changing type of information recording medium
RICOH KK54 citations92
US6770346B2Aug 3, 2004
Optical recording medium and recording method
RICOH KK40 citations91
US5298305AMar 29, 1994
Phase-change type information recording medium
RICOH KK47 citations91
US4840922AJun 20, 1989
Method of manufacturing masked semiconductor laser
RICOH KK30 citations91
US5156693AOct 20, 1992
Information recording medium
RICOH KK45 citations90
US7507523B2Mar 24, 2009
Optical information recording medium, method of manufacturing the optical information recording medium, and method of and apparatus for recording/reproducing optical information
RICOH KK14 citations84
US7438965B2Oct 21, 2008
Phase-change information recording medium, manufacturing method for the same, sputtering target, method for using the phase-change information recording medium and optical recording apparatus
RICOH KK10 citations84
US7242657B2Jul 10, 2007
Phase change type optical recording medium and recording method therefor
RICOH KK13 citations84
US6846611B2Jan 25, 2005
Phase-change optical recording medium
RICOH KK17 citations84
US7260053B2Aug 21, 2007
Optical recording medium, process for manufacturing the same, sputtering target for manufacturing the same, and optical recording process using the same
RICOH KK14 citations83
US7288224B2Oct 30, 2007
Method of producing a sputtering target
RICOH KK8 citations74
US5916730AJun 29, 1999
Optical information recording medium and recording method by use of the recording medium
RICOH KK7 citations74
US6884487B2Apr 26, 2005
Optical recording medium, recording material, method of producing optical recording medium, and optical recording, reading and rewriting method
RICOH KK8 citations73
US6777057B2Aug 17, 2004
Phase-change optical recording medium and recording method and apparatus for the same
RICOH KK6 citations73
US4379820AApr 12, 1983
Electrophotographic photoconductor of halogen-doped Se-Te alloy layers
RICOH KK7 citations72
US7773478B2Aug 10, 2010
Optical recording medium, multi-layered optical recording medium, and optical recording method and recording apparatus using the same
RICOH KK2 citations63
US7384678B2Jun 10, 2008
Optical recording medium and process for producing the same, sputtering target, using process of optical recording medium, and optical recording apparatus
RICOH KK2 citations63
US6963527B2Nov 8, 2005
Information recording method and optical recording medium therefor
RICOH KK2 citations62
US6884488B2Apr 26, 2005
Phase-change optical recording medium and recording method and apparatus for the same
RICOH KK2 citations62
US7364781B2Apr 29, 2008
Optical recording medium, recording material, method of producing optical recording medium and optical recording, reading and rewriting method
RICOH KK0 citations52
US7366075B2Apr 29, 2008
Phase-change optical recording medium and recording method and apparatus for the same
RICOH KK0 citations52
US7102977B2Sep 5, 2006
Phase-change optical recording medium and recording method and apparatus for the same
RICOH KK0 citations52
US7068591B2Jun 27, 2006
Information recording method and optical recording medium therefor
RICOH KK0 citations51