Inventor · disambiguated record
Nobuo Azuma
Also filed as: AZUMA NOBUO
15 granted patents·312 citations·filing 1977–1997
94Inventor score
Files withHITACHI LTD15
Top patents by PatentIndex Score
15 records- 0191US4142375AControl apparatus for air conditioning unitHITACHI LTD·Filed 1977·Granted Mar 6, 1979·91 cites·9 claims
- 0282US4153922ARelay control circuitHITACHI LTD·Filed 1977·Granted May 8, 1979·21 cites·5 claims
- 0380US4581658AVariable speed picture reproducing apparatus for video tape recorderHITACHI LTD·Filed 1983·Granted Apr 8, 1986·22 cites·12 claims
- 0479US4819097AAudio signal recording/reproducing system for use in time-lapse video tape recorderHITACHI LTD·Filed 1988·Granted Apr 4, 1989·25 cites·26 claims
- 0570US5122885AMagnetic video recording/reproducing apparatus for video signals of different aspect ratios adapter unitHITACHI LTD·Filed 1990·Granted Jun 16, 1992·35 cites·19 claims
- 0667US4772975AMagnetic reproducing apparatusHITACHI LTD·Filed 1986·Granted Sep 20, 1988·15 cites·10 claims
- 0763US5307171AVideo tape recorder/playerHITACHI LTD·Filed 1990·Granted Apr 26, 1994·24 cites·16 claims
- 0860US5374955AHigh-definition imaging device, and apparatuses for recording and playing back high-definition picture informationHITACHI LTD·Filed 1993·Granted Dec 20, 1994·20 cites·16 claims
- 0955US4581659AMethod and apparatus for reproducing information at variable speeds from a magnetic tapeHITACHI LTD·Filed 1983·Granted Apr 8, 1986·8 cites·19 claims
- 1053US5499145AMagnetic recording apparatus with capability of recording signals of a plurality of different television systemsHITACHI LTD·Filed 1993·Granted Mar 12, 1996·14 cites·19 claims
- 1148US4507690ADevice for controlling consecutive recording of video information signals from video cameraHITACHI LTD·Filed 1982·Granted Mar 26, 1985·8 cites·6 claims
- 1244US6115011APlasma display device and driving methodHITACHI LTD·Filed 1997·Granted Sep 5, 2000·12 cites·22 claims
- 1341US5414523AAudio signal recording/reproducing apparatus for recording and reproducing high-definition television system audio signal of a plurality of channelsHITACHI LTD·Filed 1992·Granted May 9, 1995·7 cites·19 claims
- 1441US5323273AAudio signal recording and playback apparatus of magnetic recording and playback apparatusHITACHI LTD·Filed 1991·Granted Jun 21, 1994·7 cites·15 claims
- 1534US4809096ATracking controlling device using multiple pilot signals in magnetic video signal recording and reproducing apparatusHITACHI LTD·Filed 1987·Granted Feb 28, 1989·3 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →