Inventor
HIRATA NORITSUGU
32 patents
Patents
32 patentsUS5907443AMay 25, 1999
Recording and reproducing apparatus adapted to selectively control the number of copies made
CANON KK94 citations98
US6052242AApr 18, 2000
Recording apparatus with copy control based on copies made and allowed to be made
CANON KK35 citations92
US4897739AJan 30, 1990
Multi-channel recording apparatus using a plurality of heads in turn
CANON KK35 citations92
US4801830AJan 31, 1989
Brushless motor
CANON KK34 citations92
US4447837AMay 8, 1984
Video recording system
CANON KK23 citations82
US4000501ADec 28, 1976
Optical instrument with a zoom lens structure
CANON KK22 citations81
US4573089AFeb 25, 1986
Recording and reproducing apparatus
CANON KK17 citations74
US4410247AOct 18, 1983
Motion picture camera
CANON KK6 citations74
US4363051ADec 7, 1982
Video tape recorder arranged to be connected with a video camera
CANON KK8 citations74
US4318593AMar 9, 1982
Zoom lens assembly with two movable focusing lens groups
CANON KK19 citations74
US4257693AMar 24, 1981
Cine camera
CANON KK18 citations74
US5010424AApr 23, 1991
Recording apparatus for an information signal with a plural kinds of pilot signals using a plurality of heads
CANON KK8 citations73
US4351590ASep 28, 1982
Motion picture camera with automatic focusing device
CANON KK10 citations73
US4326790AApr 27, 1982
Photographic camera
CANON KK7 citations73
US4278340AJul 14, 1981
Camera having an automatic focus adjusting device
CANON KK15 citations73
US3950775AApr 13, 1976
Information displaying apparatus for a camera
CANON KK7 citations73
US6449109B1Sep 10, 2002
Recording and reproducing apparatus
CANON KK6 citations63
US4365875ADec 28, 1982
Motion picture camera
CANON KK3 citations63
US4240720ADec 23, 1980
Motion picture camera
CANON KK2 citations63
US4456349AJun 26, 1984
Cinematographic camera
CANON KK4 citations62
US4086605AApr 25, 1978
Diaphragm device
CANON KK4 citations62
US4079398AMar 14, 1978
Self-timer
CANON KK4 citations62
US4066346AJan 3, 1978
Motion picture camera with a built in color conversion filter
CANON KK3 citations62
US4059349ANov 22, 1977
Photographing system and a motion picture camera using the same
CANON KK5 citations62
US4000941AJan 4, 1977
Automatic exposure adjusting device
CANON KK6 citations62
US3955887AMay 11, 1976
Motion picture camera
CANON KK5 citations62
US3954330AMay 4, 1976
Film gate unit for motion picture apparatus
CANON KK5 citations61
US3952319AApr 20, 1976
Plural image camera having automatic exposure control
CANON KK5 citations61
US4057334ANov 8, 1977
Self timer device for motion picture camera
CANON KK1 citations51
US4331395AMay 25, 1982
Motion picture camera
CANON KK0 citations42
US3964046AJun 15, 1976
Control device for a portable machine
CANON KK0 citations42
US4072409AFeb 7, 1978
Release device of motion picture camera
CANON KK0 citations41