Inventor · disambiguated record
Kazuyoshi Kikkawa
Also filed as: KIKKAWA KAZUYOSHI
13 granted patents·90 citations·filing 1991–1996
90Inventor score
Files withMITSUI TOATSU CHEMICALS13
Top patents by PatentIndex Score
13 records- 0190US5281570AThermochromic materialsMITSUI TOATSU CHEMICALS·Filed 1992·Granted Jan 25, 1994·49 cites·12 claims
- 0266US5270281AHeat-sensitive recording materials and phenol compoundsMITSUI TOATSU CHEMICALS·Filed 1992·Granted Dec 14, 1993·8 cites·4 claims
- 0358US5391806AHeat-sensitive recording materials and phenol compoundsMITSUI TOATSU CHEMICALS·Filed 1993·Granted Feb 21, 1995·5 cites·20 claims
- 0455US5300473ARecording material comprising crystal of fluoran compoundMITSUI TOATSU CHEMICALS·Filed 1993·Granted Apr 5, 1994·6 cites·4 claims
- 0551US5306688ASalicylic acid derivatives, the process for preparing the same and the heat-sensitive recording materials comprising thereofMITSUI TOATSU CHEMICALS·Filed 1992·Granted Apr 26, 1994·4 cites·12 claims
- 0650US5300661AProcess for preparation of a recording material comprising a novel crystal of a fluoran compoundMITSUI TOATSU CHEMICALS·Filed 1993·Granted Apr 5, 1994·4 cites·3 claims
- 0749US5185453ACrystal of fluoran compoundMITSUI TOATSU CHEMICALS·Filed 1991·Granted Feb 9, 1993·2 cites·1 claims
- 0847US5302571ACrystals of fluoran compound, crystalline solvates thereof, process for their preparation and recording material comprising said crystal or said solvateMITSUI TOATSU CHEMICALS·Filed 1993·Granted Apr 12, 1994·2 cites·11 claims
- 0946US5559247ACarboxylate and heat-sensitive recording material using sameMITSUI TOATSU CHEMICALS·Filed 1995·Granted Sep 24, 1996·3 cites·3 claims
- 1043US5283222ARecording material comprising novel crystalline fluoran and process for prepartion of the said crystalline fluoranMITSUI TOATSU CHEMICALS·Filed 1992·Granted Feb 1, 1994·2 cites·7 claims
- 1142US5691272ACarboxylate and heat-sensitive recording material using sameMITSUI TOATSU CHEMICALS·Filed 1996·Granted Nov 25, 1997·5 cites·16 claims
- 1234US5245049ACrystals of fluoran compound, crystalline solvates thereof and process for their preparationMITSUI TOATSU CHEMICALS·Filed 1991·Granted Sep 14, 1993·0 cites·33 claims
- 1332US5210221ACrystal of fluoran compound and preparation process of the crystalMITSUI TOATSU CHEMICALS·Filed 1991·Granted May 11, 1993·0 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →