Assignee
NAIGAI CARBON INK
JP·4 granted patents·46 citations·filing 1986–2013
Top patents by PatentIndex Score
4 records- 0176US5885926AHeat sensitive color recording materialNAIGAI CARBON INK·Filed 1997·Granted Mar 23, 1999·27 cites·9 claims
- 0263US4814319AHeat and pressure sensitive recording materialNAIGAI CARBON INK·Filed 1986·Granted Mar 21, 1989·12 cites·12 claims
- 0340US5567668APressure- and heat-sensitive multilayer copying paperNAIGAI CARBON INK·Filed 1994·Granted Oct 22, 1996·4 cites·26 claims
- 0422USD734387SPrinting paperNAIGAI CARBON INK·Filed 2013·Granted Jul 14, 2015·3 cites·1 claims
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