Inventor

TADA JUNYA

JP3 patents

Patents

3 patents

US4769282ASep 6, 1988

Magnetic recording medium

SUMITOMO METAL MINING CO12 citations70

US5006388AApr 9, 1991

Magnetic disc

SUMITOMO METAL MINING CO11 citations69

US4968564ANov 6, 1990

Magnetic recording medium

SUMITOMO METAL MINING CO3 citations59