Inventor · disambiguated record
Tosaku Okamoto
Also filed as: OKAMOTO TOSAKU
10 granted patents·121 citations·filing 1977–1991
89Inventor score
Files withKANZAKI PAPER MFG CO LTD10
Top patents by PatentIndex Score
10 records- 0188US4529992AMulticolor record materialKANZAKI PAPER MFG CO LTD·Filed 1983·Granted Jul 16, 1985·38 cites·10 claims
- 0273US4134847AMethod for the production of a color developer and the obtained color developerKANZAKI PAPER MFG CO LTD·Filed 1977·Granted Jan 16, 1979·23 cites·40 claims
- 0367US4828957ATwo-color heat-sensitive recording material with 2-hydroxy-3-naphthoanilide as both coupler and color developing agentKANZAKI PAPER MFG CO LTD·Filed 1987·Granted May 9, 1989·10 cites·6 claims
- 0464US4659643AHeat-sensitive recording diazo material with recording sensitizerKANZAKI PAPER MFG CO LTD·Filed 1985·Granted Apr 21, 1987·9 cites·4 claims
- 0553US4770973AHeat-sensitive diazo recording material with diphenyl alkene couplerKANZAKI PAPER MFG CO LTD·Filed 1986·Granted Sep 13, 1988·6 cites·7 claims
- 0653US4510512AHeat-sensitive record materialKANZAKI PAPER MFG CO LTD·Filed 1982·Granted Apr 9, 1985·14 cites·19 claims
- 0751US4652512AHeat and light-sensitive recording materials with dialonium compound, coupler, and heat fusible amidine or diamidine compoundKANZAKI PAPER MFG CO LTD·Filed 1986·Granted Mar 24, 1987·6 cites·9 claims
- 0845US5296440AHeat-sensitive recording mediumKANZAKI PAPER MFG CO LTD·Filed 1991·Granted Mar 22, 1994·4 cites·13 claims
- 0943US5187143AHeat sensitive recording materialKANZAKI PAPER MFG CO LTD·Filed 1991·Granted Feb 16, 1993·3 cites·11 claims
- 1041US4906604AMulti-color heat sensitive recording materialKANZAKI PAPER MFG CO LTD·Filed 1988·Granted Mar 6, 1990·8 cites·7 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →