Inventor · disambiguated record
Hisahito Ogawa
Also filed as: OGAWA HISAHITO
34 granted patents·1,513 citations·filing 1979–2000
98Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD34
Top patents by PatentIndex Score
34 records- 0198US6433303B1Method and apparatus using laser pulses to make an array of microcavity holesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Aug 13, 2002·137 cites·23 claims
- 0295US5742433ADiffractive optical device including grating elements with different grating periods and duty ratiosMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Apr 21, 1998·142 cites·12 claims
- 0395US4313338AGas sensing deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1979·Granted Feb 2, 1982·62 cites·18 claims
- 0494US4395440AMethod of and apparatus for manufacturing ultrafine particle filmMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1981·Granted Jul 26, 1983·74 cites·6 claims
- 0592US5597889AOrganic polymer and preparation and use thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Jan 28, 1997·48 cites·7 claims
- 0692US5428711ASpatial light modulator and neural networkMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Jun 27, 1995·111 cites·5 claims
- 0792US4602192AThin film integrated deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1984·Granted Jul 22, 1986·85 cites·14 claims
- 0891US5876891APhotosensitive material and process for the preparation thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Mar 2, 1999·41 cites·3 claims
- 0989US5654367AOrganic polymer and preparation and use thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Aug 5, 1997·35 cites·5 claims
- 1089US5594567ASpatial light modulator with a photoconductor having uneven conductivity in a lateral direction and a method for fabricating the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Jan 14, 1997·89 cites·17 claims
- 1189US5561558ADiffractive optical deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Oct 1, 1996·73 cites·19 claims
- 1288US5402435AOptical deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Mar 28, 1995·79 cites·20 claims
- 1382US5138495ADiffractive optical lensMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Aug 11, 1992·54 cites·10 claims
- 1479US6057878AThree-dimensional picture image display apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted May 2, 2000·59 cites·15 claims
- 1578US5331182AOrganic light emitting device and preparation and use thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Jul 19, 1994·41 cites·7 claims
- 1677US6388649B1Spatial light modulator and a method for driving the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted May 14, 2002·43 cites·29 claims
- 1776US5486442AOrganic polymer and preparation and use in crystal spatial light modulatorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Jan 23, 1996·15 cites·5 claims
- 1874US5583676ASpatial light modulator, method of production thereof and projection-type displayMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Dec 10, 1996·42 cites·28 claims
- 1971US5384649ALiquid crystal spatial light modulator with electrically isolated reflecting films connected to electrically isolated pixel portions of photo conductorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Jan 24, 1995·36 cites·27 claims
- 2070US5436742AMethod for driving a ferroelectric spatial light modulator including a first voltage, write pulse, and second voltage greater than and longer than the firstMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Jul 25, 1995·34 cites·3 claims
- 2163US5731797ADriving method for spatial light modulator and projection display systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Mar 24, 1998·27 cites·26 claims
- 2263US5373519ASemiconductor laser device, an optical device and a method of producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Dec 13, 1994·31 cites·36 claims
- 2362US4362765AMethod of manufacturing a gas sensing deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1981·Granted Dec 7, 1982·15 cites·9 claims
- 2460US5567941APyroelectric type infrared sensorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Oct 22, 1996·21 cites·25 claims
- 2555US5511134AImage recognition device and image recognition methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Apr 23, 1996·30 cites·14 claims
- 2655US5453860ASpatial light modulator having a photoconductor with grooves and a quantum efficiency greater than unityMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Sep 26, 1995·16 cites·4 claims
- 2752US5481621ADevice and method for recognizing an image based on a feature indicating a relative positional relationship between patternsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Jan 2, 1996·22 cites·16 claims
- 2842US5021660APyroelectric infrared detector and driving method thereforMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1989·Granted Jun 4, 1991·10 cites·4 claims
- 2941US5793932AImage recognition device and an image recognition methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Aug 11, 1998·16 cites·9 claims
- 3041US5443864ASpatial light modulator and a neural network circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Aug 22, 1995·3 cites·2 claims
- 3141US5416621ADriving method for ferroelectric liquid crystal spatial light modulatorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted May 16, 1995·9 cites·8 claims
- 3240US5364668ASpatial light modulator and a neural network circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Nov 15, 1994·3 cites·2 claims
- 3334US5781267AAnti-ferroelectric liquid crystal with black display in one frame, white in other and ratio giving grey scaleMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Jul 14, 1998·4 cites·20 claims
- 3432US5515189ANeural network device and image recognition method employing photoconductive liquid crystal device with patterned electrodeMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted May 7, 1996·6 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →