Inventor
SUGIYAMA KUNITOSHI
JP7 patents
Patents
7 patentsUS6489265B1Dec 3, 2002
Reversible thermosensitive recording medium, method of producing the medium, information recording devices using the medium, and image formation and erasing method using the medium
RICOH KK16 citations91
US6174836B1Jan 16, 2001
Reversible thermosensitive recording medium, method of producing the medium, information recording devices using the medium, and image formation and erasing method using the medium
RICOH KK29 citations91
US6362130B1Mar 26, 2002
Reversible thermosensitive recording medium, card, label, disk, disk cartridge, tape cassette, method of producing the recording medium, and method of recording and erasing images using the same
RICOH KK16 citations83
US6464797B1Oct 15, 2002
Method of separating electrophotographic carrier compositions and recycling the compositions
RICOH KK9 citations71
US5380550AJan 10, 1995
Method for producing a reversible thermosensitive recording material
RICOH KK6 citations71
US7182861B2Feb 27, 2007
System for separating electrophotographic carrier compositions and recycling the compositions
RICOH KK3 citations60
US5342815AAug 30, 1994
Reversible thermosensitive recording material and method for producing the same
RICOH KK4 citations60