Inventor

KAYANUMA KANJI

18 patents

Patents

18 patents

US5696757ADec 9, 1997

Optical disc, device for checking optical disc and device for recording information on optical disc

VICTOR COMPANY OF JAPAN145 citations99

US5930217AJul 27, 1999

Optical information recording/reproducing system, optical information storage medium, and manufacturing method thereof

VICTOR COMPANY OF JAPAN133 citations98

US5572507ANov 5, 1996

Optical disc, device for checking optical disc, and device for recording information on optical disc

VICTOR COMPANY OF JAPAN124 citations98

US4653924AMar 31, 1987

Rotating analyzer type ellipsometer

VICTOR COMPANY OF JAPAN70 citations96

US5006703AApr 9, 1991

Reflective optical rotary encoder disc

VICTOR COMPANY OF JAPAN76 citations94

US6083667AJul 4, 2000

Optical recording medium

VICTOR COMPANY OF JAPAN27 citations92

US5809545ASep 15, 1998

Optical disc for a master key, and a method and apparatus for optical-disc information management which inhibit and permit reproduction of main information from an illegal copy disc by using physical and logical security information

VICTOR COMPANY OF JAPAN36 citations92

US5790745AAug 4, 1998

Variable transfer rate control coding apparatus, reproducing apparatus and recording medium

VICTOR COMPANY OF JAPAN34 citations92

US5617408AApr 1, 1997

Optical recording medium having a disc with deformed pits

VICTOR COMPANY OF JAPAN24 citations92

US4695162ASep 22, 1987

Film thickness measuring apparatus

VICTOR COMPANY OF JAPAN29 citations92

US4162398AJul 24, 1979

Bias control circuit for light modulators

VICTOR COMPANY OF JAPAN43 citations92

US5781526AJul 14, 1998

Optical recording medium having a disc with deformed pits

VICTOR COMPANY OF JAPAN15 citations82

US4114180ASep 12, 1978

Closed loop laser noise elimination for optoelectronic recording

VICTOR COMPANY OF JAPAN28 citations82

US4061950ADec 6, 1977

Pulse generating device for regulating the rotational speed of a body

VICTOR COMPANY OF JAPAN19 citations82

US6160782ADec 12, 2000

Holographic storage medium and reproduction of data therefrom

VICTOR COMPANY OF JAPAN18 citations81

USRE38227EAug 19, 2003

Variable transfer rate control coding apparatus, reproducing apparatus and recording medium

VICTOR COMPANY OF JAPAN8 citations74

US4340907AJul 20, 1982

Special reproducing system in an apparatus for reproducing video signals from a rotary recording medium

VICTOR COMPANY OF JAPAN16 citations73

US4247741AJan 27, 1981

Reproducing transducer feeding device in a rotary recording medium reproducing apparatus

VICTOR COMPANY OF JAPAN17 citations70