Inventor · disambiguated record
Harushige Nakagaki
Also filed as: FUKUSHIMA ISAO · INOUE SHIGEKI · NAKAGAKI HARUSHIGE
14 granted patents·510 citations·filing 1977–1997
94Inventor score
Top patents by PatentIndex Score
14 records- 0198US4748609AMethod and apparatus for composite tracking servo system with track offset correction and rotary optical disc having at least one correction mark for correcting track offsetHITACHI LTD·Filed 1986·Granted May 31, 1988·119 cites·21 claims
- 0297US4707816AMethod and apparatus for composite wobbled and push-pull tracking servo systemHITACHI LTD·Filed 1986·Granted Nov 17, 1987·98 cites·13 claims
- 0396US4409559ASupply voltage controlled stereophonic amplifier systemHITACHI LTD·Filed 1981·Granted Oct 11, 1983·68 cites·8 claims
- 0486US4241456ARemote-controlled receiverHITACHI LTD·Filed 1979·Granted Dec 23, 1980·39 cites·10 claims
- 0582US4427951AProtective device for power amplifierHITACHI LTD·Filed 1981·Granted Jan 24, 1984·22 cites·11 claims
- 0681US5963517ADisk reproducing speed control method and a disk reproducing apparatus using the sameHITACHI LTD·Filed 1997·Granted Oct 5, 1999·38 cites·32 claims
- 0779US4675855AReproducing rate control apparatus for information recording discHITACHI LTD·Filed 1984·Granted Jun 23, 1987·21 cites·8 claims
- 0879US4580255AServo circuit for a signal reproducing apparatusHITACHI LTD·Filed 1983·Granted Apr 1, 1986·21 cites·12 claims
- 0975US5532835ATracking control in apparatus for fast reproducing digital information signal from magnetic tapeHITACHI LTD·Filed 1995·Granted Jul 2, 1996·30 cites·14 claims
- 1075US4682314ADisc playback apparatusHITACHI LTD·Filed 1983·Granted Jul 21, 1987·18 cites·6 claims
- 1167US5341248AMagnetic recording/reproducing apparatus having head structure for selectively recording/reproducing either of two kinds of signals containing different amounts of informationHITACHI LTD·Filed 1993·Granted Aug 23, 1994·17 cites·16 claims
- 1255US4100501AAudio frequency power amplifierHITACHI LTD·Filed 1977·Granted Jul 11, 1978·8 cites·8 claims
- 1346US4214299AFrequency-voltage converterHITACHI LTD·Filed 1978·Granted Jul 22, 1980·7 cites·5 claims
- 1436US5227928AMagnetic recording/reproducing apparatus which maintains a constant speed relation between a linearly moving tape and a rotationally moving headPIONEER ELECTRONIC CORP·Filed 1991·Granted Jul 13, 1993·4 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →