Inventor
OKAMOTO TOSAKU
JP10 patents
Patents
10 patentsUS4529992AJul 16, 1985
Multicolor record material
KANZAKI PAPER MFG CO LTD38 citations92
US4134847AJan 16, 1979
Method for the production of a color developer and the obtained color developer
KANZAKI PAPER MFG CO LTD23 citations79
US4906604AMar 6, 1990
Multi-color heat sensitive recording material
KANZAKI PAPER MFG CO LTD8 citations73
US4510512AApr 9, 1985
Heat-sensitive record material
KANZAKI PAPER MFG CO LTD14 citations73
US4828957AMay 9, 1989
Two-color heat-sensitive recording material with 2-hydroxy-3-naphthoanilide as both coupler and color developing agent
KANZAKI PAPER MFG CO LTD10 citations72
US4659643AApr 21, 1987
Heat-sensitive recording diazo material with recording sensitizer
KANZAKI PAPER MFG CO LTD9 citations72
US5296440AMar 22, 1994
Heat-sensitive recording medium
KANZAKI PAPER MFG CO LTD4 citations62
US5187143AFeb 16, 1993
Heat sensitive recording material
KANZAKI PAPER MFG CO LTD3 citations62
US4770973ASep 13, 1988
Heat-sensitive diazo recording material with diphenyl alkene coupler
KANZAKI PAPER MFG CO LTD6 citations62
US4652512AMar 24, 1987
Heat and light-sensitive recording materials with dialonium compound, coupler, and heat fusible amidine or diamidine compound
KANZAKI PAPER MFG CO LTD6 citations61