Inventor · disambiguated record
Kunitoshi Sugiyama
Also filed as: SUGIYAMA KUNITOSHI
7 granted patents·83 citations·filing 1993–2002
86Inventor score
Files withRICOH KK7
Top patents by PatentIndex Score
7 records- 0184US6489265B1Reversible thermosensitive recording medium, method of producing the medium, information recording devices using the medium, and image formation and erasing method using the mediumRICOH KK·Filed 2000·Granted Dec 3, 2002·16 cites·27 claims
- 0281US6174836B1Reversible thermosensitive recording medium, method of producing the medium, information recording devices using the medium, and image formation and erasing method using the mediumRICOH KK·Filed 1998·Granted Jan 16, 2001·29 cites·11 claims
- 0365US6464797B1Method of separating electrophotographic carrier compositions and recycling the compositionsRICOH KK·Filed 2000·Granted Oct 15, 2002·9 cites·24 claims
- 0463US6362130B1Reversible 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 sameRICOH KK·Filed 1998·Granted Mar 26, 2002·16 cites·69 claims
- 0557US7182861B2System for separating electrophotographic carrier compositions and recycling the compositionsRICOH KK·Filed 2002·Granted Feb 27, 2007·3 cites·24 claims
- 0652US5380550AMethod for producing a reversible thermosensitive recording materialRICOH KK·Filed 1994·Granted Jan 10, 1995·6 cites·2 claims
- 0747US5342815AReversible thermosensitive recording material and method for producing the sameRICOH KK·Filed 1993·Granted Aug 30, 1994·4 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →