Inventor
NAMIKAWA KAZUHIRA
JP8 patents
Patents
8 patentsUS4776935AOct 11, 1988
High density record including carbon black particles purified by electrolysis
VICTOR COMPANY OF JAPAN3 citations60
US4646284AFeb 24, 1987
High density information record medium using carbon black particles surface-treated with silicone oil
VICTOR COMPANY OF JAPAN2 citations60
US4592862AJun 3, 1986
Conductive resin composition and information record
VICTOR COMPANY OF JAPAN6 citations60
US4548739AOct 22, 1985
High density information records made of conductive resin compositions comprising a specifically-treated vinyl chloride-base resin
VICTOR COMPANY OF JAPAN2 citations60
US4547545AOct 15, 1985
High density information record made of a conductive resin composition comprising a specific type of dimethylpolysiloxane
VICTOR COMPANY OF JAPAN3 citations60
US4906499AMar 6, 1990
High density information record medium comprising a polymer material having a lubricant uniformly dispersed therein
VICTOR COMPANY OF JAPAN0 citations50
US4639908AJan 27, 1987
High density information records made of conductive resin compositions comprising inorganic power stabilizers
VICTOR COMPANY OF JAPAN0 citations50
US4631717ADec 23, 1986
High density information records of an electrostatic capacitance type
VICTOR COMPANY OF JAPAN1 citations50