Inventor
IWASAKI HIROKO
JP33 patents
Patents
33 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
US6329035B1Dec 11, 2001
Optical data storage medium capable of reversibly displaying information
RICOH KK119 citations97
US6373802B1Apr 16, 2002
Method and apparatus for initializing optical recording media
RICOH KK34 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
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
US6660452B2Dec 9, 2003
Optical information memory medium and display recording method using the same
RICOH KK21 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
US6388978B1May 14, 2002
Optical recording method for a rewritable phase-change optical recording medium
RICOH KK54 citations92
US5882493AMar 16, 1999
Heat treated and sintered sputtering target
RICOH KK25 citations92
US5646924AJul 8, 1997
Recording and simultaneous verifying method of phase-changing type of information recording medium
RICOH KK54 citations92
US5298305AMar 29, 1994
Phase-change type information recording medium
RICOH KK47 citations91
US5156693AOct 20, 1992
Information recording medium
RICOH KK45 citations90
US5790505AAug 4, 1998
Optical data recording/reproducing method and apparatus for determing an optimum recording power
RICOH KK17 citations84
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
US6775213B2Aug 10, 2004
Method and apparatus for initializing optical recording media
RICOH KK3 citations73
US6580672B2Jun 17, 2003
Method and apparatus for initializing optical recording media
RICOH KK4 citations73
US6555196B2Apr 29, 2003
Optical data recording medium and material for heat-resistant protection layer for the same
RICOH KK2 citations63
US6760291B2Jul 6, 2004
Method and apparatus for initializing optical recording media
RICOH KK2 citations62
US7447138B2Nov 4, 2008
Method and apparatus for initializing optical recording media
RICOH KK0 citations52
US6990053B2Jan 24, 2006
Method and apparatus for initializing optical recording media
RICOH KK0 citations52