Inventor
SEGAWA HIDEKI
JP6 patents
Patents
6 patentsUS6860422B2Mar 1, 2005
Method and apparatus for tracking documents in a workflow
RICOH KK280 citations98
US7129840B2Oct 31, 2006
Document security system
RICOH KK81 citations97
US7357300B2Apr 15, 2008
Method and apparatus for tracking documents in a workflow
RICOH KK23 citations92
US5060223AOct 22, 1991
Optical type information recording medium having specified pit and guide groove shapes
RICOH KK20 citations71
US5105416AApr 14, 1992
Optical disc recording/reproducing control
RICOH KK13 citations65
US5161136ANov 3, 1992
Servo error detecting method of an optical disc system
RICOH KK3 citations60