Inventor · disambiguated record
Hideo Zama
Also filed as: ZAMA HIDEO
12 granted patents·1 pending application·130 citations·filing 1975–2001
91Inventor score
Files withHITACHI LTD13
Top patents by PatentIndex Score
13 records- 0184US6339676B1Video signal recording and reproducing apparatus compatible with analog and digital video signal recording and reproducingHITACHI LTD·Filed 2000·Granted Jan 15, 2002·20 cites·9 claims
- 0275US4021798ALiquid crystal display panel and method for driving the sameHITACHI LTD·Filed 1975·Granted May 3, 1977·27 cites·8 claims
- 0372US4439794AMagnetic headHITACHI LTD·Filed 1981·Granted Mar 27, 1984·16 cites·11 claims
- 0467US4803338AMagnetic head having improved track width narrowing groovesHITACHI LTD·Filed 1987·Granted Feb 7, 1989·14 cites·19 claims
- 0557US5363263ACoil assembly for rotary magnetic head apparatusHITACHI LTD·Filed 1992·Granted Nov 8, 1994·12 cites·11 claims
- 0653US5126906ARotary magnetic head device with rotary transformer having high coupling coefficientHITACHI LTD·Filed 1990·Granted Jun 30, 1992·10 cites·11 claims
- 0752US6104862AVideo signal recording and reproducing apparatus compatible with analog and digital video signal recording and reproducingHITACHI LTD·Filed 1995·Granted Aug 15, 2000·13 cites·41 claims
- 0850US5057944AMultiplex rotating magnetic head system for multiply recording and erasing audio and video signalsHITACHI LTD·Filed 1988·Granted Oct 15, 1991·8 cites·12 claims
- 0944US2002102096A1Video signal recording apparatus and video signal recording and reproducing apparatusHITACHI LTD·Filed 2001·Application pending·0 cites
- 1036US6195499B1Magnetic recording and/or reproducing apparatusHITACHI LTD·Filed 1999·Granted Feb 27, 2001·3 cites·26 claims
- 1133US5193045AHelical scan type magnetic recording and/or reproducing apparatus having combination type video head and flying erase head for low vibrationHITACHI LTD·Filed 1991·Granted Mar 9, 1993·2 cites·2 claims
- 1232US5047885AMagnetic head formed of thin metal film including a chevron shapeHITACHI LTD·Filed 1988·Granted Sep 10, 1991·4 cites·6 claims
- 1327US5067038ARotary magnetic head device having two different kinds of headsHITACHI LTD·Filed 1990·Granted Nov 19, 1991·1 cites·7 claims
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