Inventor
OGUINO MASANORI
JP17 patents
Patents
17 patentsUS4536056AAug 20, 1985
Rear projection apparatus
HITACHI LTD43 citations92
US4531812AJul 30, 1985
Rear projection screen
HITACHI LTD40 citations92
US4416002ANov 15, 1983
Method and apparatus for high-density recording and reproduction
HITACHI LTD28 citations92
US4368354AJan 11, 1983
Discriminator apparatus for detecting the presence of a signal by using a differential beat signal having an inaudible frequency
HITACHI LTD47 citations91
US4720744AJan 19, 1988
Television system
HITACHI LTD39 citations88
US4895429AJan 23, 1990
Rear projection apparatus
HITACHI LTD20 citations81
US4814671AMar 21, 1989
Convergence circuit
HITACHI LTD10 citations73
US4609945ASep 2, 1986
Video projection apparatus with temperature compensation device
HITACHI LTD19 citations73
US4432010AFeb 14, 1984
Rear projection apparatus
HITACHI LTD19 citations73
US4322746AMar 30, 1982
Crosstalk attenuator system
HITACHI LTD15 citations73
US4121252AOct 17, 1978
Automatic brightness limiter circuit
HITACHI LTD12 citations71
US4729031AMar 1, 1988
Coupling system for image projection
HITACHI LTD9 citations69
US4576442AMar 18, 1986
Image projection apparatus
HITACHI LTD3 citations62
US4412253AOct 25, 1983
Automatic noise removal device for a picture signal
HITACHI LTD5 citations62
US4731838AMar 15, 1988
AGC circuit used in a CATV receiver
HITACHI LTD2 citations60
US4021843AMay 3, 1977
Color tone control device in color television receiver
HITACHI LTD2 citations60
US4897581AJan 30, 1990
Horizontal deflection circuit
HITACHI LTD1 citations52