Inventor

ICHIKAWA SACHIKO

JP4 patents

Patents

4 patents

US4965153AOct 23, 1990

Optical recording medium

CANON KK28 citations92

US4871649AOct 3, 1989

Optical recording medium and optical recording method using the same

CANON KK9 citations73

US5026623AJun 25, 1991

Optical recording medium

CANON KK13 citations72

US5158859AOct 27, 1992

Optical recording medium

CANON KK11 citations70