Inventor · disambiguated record
Tsutomu Kempo
Also filed as: KEMPO TSUTOMU
3 granted patents·31 citations·filing 1989–1989
70Inventor score
Technology areasG11B
Files withKONISHIROKU PHOTO IND3
Top patents by PatentIndex Score
3 records- 0162US5064720AMagnetic recording medium containing a polyurethane binder resin having a betaine group in the form of an intermolecular saltKONISHIROKU PHOTO IND·Filed 1989·Granted Nov 12, 1991·13 cites·22 claims
- 0258US5134027AMagnetic recording mediumKONISHIROKU PHOTO IND·Filed 1989·Granted Jul 28, 1992·11 cites·19 claims
- 0349US5098785AMagnetic recording medium containing a copolymer having an anionic functional group which forms an intermolecular saltKONISHIROKU PHOTO IND·Filed 1989·Granted Mar 24, 1992·7 cites·7 claims
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