Inventor
SHIBAGUCHI TAKASHI
JP19 patents
Patents
19 patentsUS6548137B2Apr 15, 2003
Phase-change optical recording medium and recording method and apparatus for the same
RICOH KK60 citations96
US6096398AAug 1, 2000
Phase-change optical recording medium
RICOH KK58 citations96
US5033806AJul 23, 1991
Optical scanner
RICOH KK41 citations92
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
US5402154AMar 28, 1995
Optical recording system capable of changing the beam size
RICOH KK16 citations74
US5124835AJun 23, 1992
Optical scanning apparatus
RICOH KK19 citations74
US5031978AJul 16, 1991
Recording optical system
RICOH KK16 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
US5541761AJul 30, 1996
Optical beam scanning apparatus adjusting focal point over entire image forming area by feedback control
RICOH KK7 citations73
US5272561ADec 21, 1993
Electrooptic device
RICOH KK13 citations73
US5140454AAug 18, 1992
Electrooptic device
RICOH KK8 citations73
US5020885AJun 4, 1991
Optical element
RICOH KK14 citations73
US4633271ADec 30, 1986
Optical writing device
RICOH KK8 citations73
US6884488B2Apr 26, 2005
Phase-change optical recording medium and recording method and apparatus for the same
RICOH KK2 citations62
US5587826ADec 24, 1996
Optical beam scanning apparatus adjusting focal point over entire image forming area by feedback control
RICOH KK3 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