Inventor
AZUMA NOBUO
JP15 patents
Patents
15 patentsUS4142375AMar 6, 1979
Control apparatus for air conditioning unit
HITACHI LTD91 citations93
US5307171AApr 26, 1994
Video tape recorder/player
HITACHI LTD24 citations92
US5122885AJun 16, 1992
Magnetic video recording/reproducing apparatus for video signals of different aspect ratios adapter unit
HITACHI LTD35 citations92
US4819097AApr 4, 1989
Audio signal recording/reproducing system for use in time-lapse video tape recorder
HITACHI LTD25 citations92
US5374955ADec 20, 1994
High-definition imaging device, and apparatuses for recording and playing back high-definition picture information
HITACHI LTD20 citations84
US4581658AApr 8, 1986
Variable speed picture reproducing apparatus for video tape recorder
HITACHI LTD22 citations82
US4153922AMay 8, 1979
Relay control circuit
HITACHI LTD21 citations81
US5414523AMay 9, 1995
Audio signal recording/reproducing apparatus for recording and reproducing high-definition television system audio signal of a plurality of channels
HITACHI LTD7 citations74
US5323273AJun 21, 1994
Audio signal recording and playback apparatus of magnetic recording and playback apparatus
HITACHI LTD7 citations74
US4581659AApr 8, 1986
Method and apparatus for reproducing information at variable speeds from a magnetic tape
HITACHI LTD8 citations74
US4507690AMar 26, 1985
Device for controlling consecutive recording of video information signals from video camera
HITACHI LTD8 citations74
US5499145AMar 12, 1996
Magnetic recording apparatus with capability of recording signals of a plurality of different television systems
HITACHI LTD14 citations73
US4772975ASep 20, 1988
Magnetic reproducing apparatus
HITACHI LTD15 citations73
US6115011ASep 5, 2000
Plasma display device and driving method
HITACHI LTD12 citations71
US4809096AFeb 28, 1989
Tracking controlling device using multiple pilot signals in magnetic video signal recording and reproducing apparatus
HITACHI LTD3 citations61