Inventor · disambiguated record
Toshiro Aizawa
Also filed as: AIZAWA TOSHIRO
8 granted patents·69 citations·filing 1989–1997
85Inventor score
Files withHITACHI LTD8
Top patents by PatentIndex Score
8 records- 0171US5617535ARecording and playbackk apparatusHITACHI LTD·Filed 1992·Granted Apr 1, 1997·20 cites·38 claims
- 0262US5047866AComb filter type luminance/chrominance signal separation circuitHITACHI LTD·Filed 1989·Granted Sep 10, 1991·18 cites·3 claims
- 0361US5392163ADigital video signal reproducing apparatus with compression and expansion of playback timeHITACHI LTD·Filed 1993·Granted Feb 21, 1995·14 cites·14 claims
- 0445US5521769AMagnetic tape drive with displaceable head capable of a re-try operationHITACHI LTD·Filed 1993·Granted May 28, 1996·6 cites·16 claims
- 0545US5500775AData recording and reproducing apparatusHITACHI LTD·Filed 1993·Granted Mar 19, 1996·6 cites·8 claims
- 0643US5488520AData recording and playback apparatus using helical scan system with magnetic head for recording and playing back pattern signal for tracking in tracking area within helical trackHITACHI LTD·Filed 1993·Granted Jan 30, 1996·4 cites·23 claims
- 0732US5737146AData recording and playback apparatus using a helical scan system with magnetic head for recording and playing back pattern signal for tracking in tracking area within helical trackHITACHI LTD·Filed 1995·Granted Apr 7, 1998·1 cites·16 claims
- 0830US5936791AHelical scan data recording and playback method and apparatus wherein reference helical tracks preceding data recording area on magnetic tape are played back before recording or playback of target dataHITACHI LTD·Filed 1997·Granted Aug 10, 1999·0 cites·3 claims
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