Inventor · disambiguated record
Kiyotaka Iiyama
Also filed as: IIYAMA KIYOTAKA
20 granted patents·392 citations·filing 1976–1990
95Inventor score
Top patents by PatentIndex Score
20 records- 0196US4663641ATwo-color thermosensitive recording adhesive labelRICOH KK·Filed 1986·Granted May 5, 1987·81 cites·18 claims
- 0290US4665410AMulti-color thermosensitive recording materialRICOH KK·Filed 1986·Granted May 12, 1987·50 cites·17 claims
- 0390US4638340ATwo-color thermosensitive recording labelRICOH KK·Filed 1985·Granted Jan 20, 1987·81 cites·13 claims
- 0484US5024699ALeuco dyes and recording materials using the sameRICOH KK·Filed 1990·Granted Jun 18, 1991·18 cites·8 claims
- 0582US4620204ATwo-color thermosensitive recording materialRICOH KK·Filed 1985·Granted Oct 28, 1986·28 cites·10 claims
- 0680US4613878ATwo-color thermosensitive recording materialRICOH KK·Filed 1985·Granted Sep 23, 1986·24 cites·7 claims
- 0778US4056824ADeveloping apparatus for diazo copying machineRICOH KK·Filed 1976·Granted Nov 1, 1977·14 cites·15 claims
- 0867US4507670AThermosensitive recording materialRICOH KK·Filed 1984·Granted Mar 26, 1985·11 cites·12 claims
- 0966US4620205ATwo-color thermosensitive recording materialRICOH KK·Filed 1985·Granted Oct 28, 1986·16 cites·13 claims
- 1064US4502068AThermosensitive recording materialRICOH KK·Filed 1983·Granted Feb 26, 1985·10 cites·6 claims
- 1161US4179407ACatalyst bed for use in decomposition of ammonia gasRICOH KK·Filed 1978·Granted Dec 18, 1979·17 cites·5 claims
- 1254US4511910AThermosensitive recording materialTANIGUCHI KEISHI·Filed 1984·Granted Apr 16, 1985·8 cites·5 claims
- 1353US4845072AThermosensitive recording materialRICOH KK·Filed 1987·Granted Jul 4, 1989·6 cites·8 claims
- 1452US4940691AColoring phthalide compounds and recording materials using the compounds as coloring componentRICOH KK·Filed 1989·Granted Jul 10, 1990·4 cites·3 claims
- 1541US4517580AThermosensitive recording materialRICOH KK·Filed 1984·Granted May 14, 1985·6 cites·9 claims
- 1640US4925828ALeuco dyes and recording materials using the sameRICOH KK·Filed 1988·Granted May 15, 1990·6 cites·6 claims
- 1736US5100861AThermal transfer dyesheetICI PLC·Filed 1990·Granted Mar 31, 1992·5 cites·3 claims
- 1834US4981970AColoring phthalide compoundsRICOH KK·Filed 1989·Granted Jan 1, 1991·3 cites·5 claims
- 1932US4880762AColoring phthalide compounds, method of producing the compounds and recording materials using any of the compounds as coloring componentRICOH KK·Filed 1987·Granted Nov 14, 1989·2 cites·6 claims
- 2031US5071825AThermal transfer receiverICI PLC·Filed 1989·Granted Dec 10, 1991·2 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →