Inventor · disambiguated record
Kazuo Van
Also filed as: VAN KAZUO
28 granted patents·396 citations·filing 1987–1997
97Inventor score
Files withSHARP KK28
Top patents by PatentIndex Score
28 records- 0189US5399461AOptical disk for use in optical memory devicesSHARP KK·Filed 1993·Granted Mar 21, 1995·81 cites·4 claims
- 0285US5087535AMethod of manufacturing photo-mask and photo-mask manufactured therebySHARP KK·Filed 1987·Granted Feb 11, 1992·27 cites·25 claims
- 0381US5674583AOptical recording medium and manufacturing method thereofSHARP KK·Filed 1995·Granted Oct 7, 1997·31 cites·16 claims
- 0479US5088086AOptical recording medium and the method of recording, reading, and erasing information using itSHARP KK·Filed 1989·Granted Feb 11, 1992·22 cites·18 claims
- 0574US5338646AOptical memory device having an improved light reflection or optical memory layerSHARP KK·Filed 1993·Granted Aug 16, 1994·20 cites·15 claims
- 0673US5170390AOptical recording element and driving systemSHARP KK·Filed 1989·Granted Dec 8, 1992·14 cites·18 claims
- 0772US5079113APhoto-maskSHARP KK·Filed 1989·Granted Jan 7, 1992·20 cites·5 claims
- 0871US5666345AOptical memory medium with predetermined guide tracks and prepitsSHARP KK·Filed 1994·Granted Sep 9, 1997·19 cites·15 claims
- 0968US5192644AOptical memory deviceSHARP KK·Filed 1990·Granted Mar 9, 1993·16 cites·12 claims
- 1065US5500850AOptical disk with grooves and pits of different depthsSHARP KK·Filed 1994·Granted Mar 19, 1996·13 cites·6 claims
- 1165US5459711AOptical recording element and driving systemSHARP KK·Filed 1994·Granted Oct 17, 1995·11 cites·5 claims
- 1260US5457006AMethod of manufacturing photo-mask and photo-mask manufactured therebySHARP KK·Filed 1991·Granted Oct 10, 1995·13 cites·3 claims
- 1360US5214636AOptical recording element having a plurality of thin film filtering layers and optical recording element having an electrically conductive layerSHARP KK·Filed 1989·Granted May 25, 1993·11 cites·26 claims
- 1456US5989671AOptical recording medium and manufacturing method thereofSHARP KK·Filed 1997·Granted Nov 23, 1999·10 cites·17 claims
- 1556US5438561AMethod for recording and reproducing information using an optical memorySHARP KK·Filed 1994·Granted Aug 1, 1995·10 cites·9 claims
- 1653US5981039AMagnetic recording medium and a manufacturing method thereof as well as a photo-printing apparatus using such a magnetic recording mediumSHARP KK·Filed 1997·Granted Nov 9, 1999·21 cites·24 claims
- 1753US5175079AOptical memory deviceSHARP KK·Filed 1991·Granted Dec 29, 1992·15 cites·9 claims
- 1850US5058099AMagneto-optical memory elementSHARP KK·Filed 1989·Granted Oct 15, 1991·6 cites·1 claims
- 1949US5403683APhoto-maskSHARP KK·Filed 1993·Granted Apr 4, 1995·10 cites·12 claims
- 2044US5605779AOptical memory mediumSHARP KK·Filed 1993·Granted Feb 25, 1997·5 cites·7 claims
- 2142US5754523AOptical memory medium with preformed pit arrangementSHARP KK·Filed 1995·Granted May 19, 1998·4 cites·19 claims
- 2240US5260150APhoto-mask with light shielding film buried in substrateSHARP KK·Filed 1990·Granted Nov 9, 1993·6 cites·9 claims
- 2338US4754355AOptical headSHARP KK·Filed 1987·Granted Jun 28, 1988·3 cites·3 claims
- 2437USRE35629EMagneto-optical memory elementSHARP KK·Filed 1993·Granted Oct 14, 1997·2 cites·2 claims
- 2537US5335220AOptical recording element and driving systemSHARP KK·Filed 1992·Granted Aug 2, 1994·2 cites·6 claims
- 2635US5081614AMagneto-optical head utilizing central and peripheral portions of reflected light flux for different purposesSHARP KK·Filed 1990·Granted Jan 14, 1992·2 cites·5 claims
- 2730US5707754AMagnetic recording medium and thermal recording printing device adopting the sameSHARP KK·Filed 1996·Granted Jan 13, 1998·1 cites·12 claims
- 2830US5305254AMagneto-optic memory deviceSHARP KK·Filed 1992·Granted Apr 19, 1994·1 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →