Inventor · disambiguated record
Minemasa Ohta
Also filed as: OHTA MINEMASA
12 granted patents·313 citations·filing 1987–1998
92Inventor score
Top patents by PatentIndex Score
12 records- 0193US4947384AOptical disk having narrow and wide guide groovesPIONEER ELECTRONIC CORP·Filed 1988·Granted Aug 7, 1990·63 cites·4 claims
- 0287US6128271AOptical recording mediumPIONEER ELECTRONIC CORP·Filed 1998·Granted Oct 3, 2000·52 cites·5 claims
- 0386US5843626AMethod for manufacturing a master disc for optical discsPIONEER VIDEO CORP·Filed 1996·Granted Dec 1, 1998·54 cites·1 claims
- 0484US5243587ADisc playing apparatus capable of both long time reproduction and high speed accessPIONEER VIDEO CORP·Filed 1992·Granted Sep 7, 1993·39 cites·2 claims
- 0566US5130970AOptical recording apparatus and optical diskPIONEER ELECTRONIC CORP·Filed 1989·Granted Jul 14, 1992·14 cites·7 claims
- 0665US5579121AReal-time image compression processorPIONEER VIDEO CORP·Filed 1994·Granted Nov 26, 1996·25 cites·2 claims
- 0765US4837130AOptical disk manufacturing methodPIONEER ELECTRONIC CORP·Filed 1987·Granted Jun 6, 1989·26 cites·6 claims
- 0863US5631888AMaster disc recording apparatus and method for recording data on different types of master discsPIONEER ELECTRONIC CORP·Filed 1996·Granted May 20, 1997·17 cites·14 claims
- 0955US5666460ACompressed picture information recording apparatus performing in real timePIONEER VIDEO CORP·Filed 1995·Granted Sep 9, 1997·12 cites·3 claims
- 1045US5787224ADevice for and method of editing informationPIONEER ELECTRONIC CORP·Filed 1996·Granted Jul 28, 1998·7 cites·7 claims
- 1132US4888491ADevice for measuring angular deviation of flat platePIONEER ELECTRONIC CORP·Filed 1988·Granted Dec 19, 1989·2 cites·12 claims
- 1231US5673359ARecording disk and recorded information reproducing apparatusPIONEER VIDEO CORP·Filed 1995·Granted Sep 30, 1997·2 cites·3 claims
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