Inventor · disambiguated record
Katsushi Sugiyama
Also filed as: SUGIYAMA KATSUSHI
10 granted patents·154 citations·filing 1997–2001
91Inventor score
Top patents by PatentIndex Score
10 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
- 0373US5942377AReversible thermosensitive composition and reversible thermosensitive recording medium using sameRICOH KK·Filed 1997·Granted Aug 24, 1999·24 cites·4 claims
- 0466US6090192AReversible thermosensitive coloring composition and reversible thermosensitive recording medium using sameRICOH KK·Filed 1998·Granted Jul 18, 2000·15 cites·3 claims
- 0563US6794334B2Thermo reversible recording medium, member having information memorizing part, thermo reversible recording label, method of and apparatus for image processingRICOH KK·Filed 2001·Granted Sep 21, 2004·5 cites·20 claims
- 0663US6362130B1Reversible 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
- 0761US5955225AReversible thermosensitive coloring composition and reversible thermosensitive recording medium using sameRICOH KK·Filed 1997·Granted Sep 21, 1999·14 cites·4 claims
- 0859US5891823AReversible thermosensitive recording mediumRICOH KK·Filed 1997·Granted Apr 6, 1999·11 cites·1 claims
- 0957US5868821AThermally reversible color forming composition and thermally reversible recording medium using the thermally reversible color forming compositionRICOH KK·Filed 1997·Granted Feb 9, 1999·12 cites·11 claims
- 1043US6137027ASolid waste treatment agent and treatment method of solid wasteMIYOSHI YUSHI KK·Filed 1999·Granted Oct 24, 2000·12 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →