Inventor · disambiguated record
Yasuo Hira
Also filed as: HIRA YASUO
40 granted patents·1,499 citations·filing 1977–2004
98Inventor score
Top patents by PatentIndex Score
40 records- 0198US5961198ALiquid crystal display device and method of manufacturing backlighting light guide panel thereforHITACHI LTD·Filed 1997·Granted Oct 5, 1999·318 cites·8 claims
- 0296US6099134ALiquid crystal display deviceHITACHI LTD·Filed 1997·Granted Aug 8, 2000·185 cites·20 claims
- 0394US6522373B1Liquid crystal display device, light guide plate, and method for producing light guide plateHITACHI LTD·Filed 2000·Granted Feb 18, 2003·82 cites·19 claims
- 0494US5567333AThin film magnetic head, process for production thereofHITACHI LTD·Filed 1994·Granted Oct 22, 1996·67 cites·20 claims
- 0593US6633351B2Optical functionality sheet, and planar light source and image display apparatus using the same sheetHITACHI LTD·Filed 2001·Granted Oct 14, 2003·64 cites·11 claims
- 0692US5070488AOptical integrated circuit and optical apparatusFUKUSHIMA ATSUKO·Filed 1989·Granted Dec 3, 1991·108 cites·24 claims
- 0790US6700634B2Backlit lighting device, liquid crystal display device utilizing same, and liquid crystal display device manufacturing methodHITACHI LTD·Filed 2002·Granted Mar 2, 2004·45 cites·30 claims
- 0890US4145369AFlame-retardant epoxy resin compositionsHITACHI LTD·Filed 1977·Granted Mar 20, 1979·37 cites·22 claims
- 0987US6530671B2Liquid crystal displayHITACHI ELECTRONIC DEVICES CO·Filed 2001·Granted Mar 11, 2003·33 cites·14 claims
- 1086US6781733B1Optical film and liquid crystal display using the sameHITACHI LTD·Filed 2000·Granted Aug 24, 2004·23 cites·14 claims
- 1184US6661552B2Rear projection apparatusHITACHI LTD·Filed 2002·Granted Dec 9, 2003·15 cites·8 claims
- 1280US6639705B2Optical filmHITACHI LTD·Filed 2002·Granted Oct 28, 2003·11 cites·10 claims
- 1380US5910864AThin film magnetic head having non-linear railsHITACHI LTD·Filed 1996·Granted Jun 8, 1999·26 cites·5 claims
- 1480US5125740AMethod and apparatus for measuring optical constants of a thin film as well as method and apparatus for fabricating a thin film utilizing sameHITACHI LTD·Filed 1990·Granted Jun 30, 1992·54 cites·13 claims
- 1579US5371582AThickness/depth measuring apparatus and method for measuring the thickness of a film and the depth of a grooveHITACHI LTD·Filed 1993·Granted Dec 6, 1994·41 cites·15 claims
- 1678US4444704AProcess for producing integral skin polyurethane foamHITACHI LTD·Filed 1982·Granted Apr 24, 1984·26 cites·22 claims
- 1777US6700632B2Illuminator apparatusHITACHI LTD·Filed 2001·Granted Mar 2, 2004·28 cites·5 claims
- 1875US6717635B2Liquid crystal display device with a light guide having random v-shaped dotsHITACHI LTD·Filed 2002·Granted Apr 6, 2004·12 cites·4 claims
- 1975US6278582B1Magnetic head and magnetic head manufacturing methodHIATCHI LTD·Filed 1999·Granted Aug 21, 2001·21 cites·23 claims
- 2074US6727963B1Liquid crystal displayHITACHI LTD·Filed 1998·Granted Apr 27, 2004·33 cites·9 claims
- 2174US6661479B2Liquid crystal display apparatusHITACHI LTD·Filed 2001·Granted Dec 9, 2003·10 cites·3 claims
- 2274US4904037AWaveguide type optical device with thermal compensation layersHITACHI LTD·Filed 1988·Granted Feb 27, 1990·32 cites·5 claims
- 2372US6198601B1Thin film magnetic head having non-linear tapered railsHITACHI LTD·Filed 1999·Granted Mar 6, 2001·17 cites·4 claims
- 2469US4544462AProcess for removing metal surface oxideHITACHI LTD·Filed 1984·Granted Oct 1, 1985·15 cites·11 claims
- 2568US6803977B2Liquid crystal display apparatusHITACHI LTD·Filed 2003·Granted Oct 12, 2004·7 cites·7 claims
- 2668US6334689B1Liquid crystal displayHITACHI LTD·Filed 1999·Granted Jan 1, 2002·29 cites·3 claims
- 2765US6704070B2Method for manufacturing a light guide plateHITACHI LTD·Filed 2002·Granted Mar 9, 2004·15 cites·6 claims
- 2865US4514270AProcess for regenerating cleaning fluidHITACHI LTD·Filed 1982·Granted Apr 30, 1985·17 cites·20 claims
- 2964US5195070AOptical information processing apparatus and optical pickup thereforHITACHI LTD·Filed 1990·Granted Mar 16, 1993·15 cites·48 claims
- 3062US5274727ASecond harmonic generator and method of fabrication thereofHITACHI LTD·Filed 1992·Granted Dec 28, 1993·25 cites·16 claims
- 3157US5191624AOptical information storing apparatus and method for production of optical deflectorHITACHI LTD·Filed 1991·Granted Mar 2, 1993·22 cites·18 claims
- 3256US4342842AProcess for producing rigid polyurethane foamHITACHI LTD·Filed 1981·Granted Aug 3, 1982·12 cites·14 claims
- 3353US6958790B2Liquid crystal display apparatusHITACHI LTD·Filed 2004·Granted Oct 25, 2005·2 cites·5 claims
- 3453US4927044AHeat insulating case and process for preparing the sameHITACHI LTD·Filed 1985·Granted May 22, 1990·15 cites·16 claims
- 3549US4906063AWave guide type optical device and method of fabricating the sameHITACHI LTD·Filed 1988·Granted Mar 6, 1990·13 cites·16 claims
- 3648US4478902AScreen for projection televisionHITACHI LTD·Filed 1981·Granted Oct 23, 1984·13 cites·16 claims
- 3745US4473662ACatalyst and composition for producing polyurethane foamHITACHI LTD·Filed 1982·Granted Sep 25, 1984·6 cites·8 claims
- 3844US6690544B2Magnetic head and magnetic head manufacturing methodHITACHI LTD·Filed 2002·Granted Feb 10, 2004·0 cites·6 claims
- 3942US6504680B2Magnetic head and magnetic head manufacturing methodHITACHI LTD·Filed 2001·Granted Jan 7, 2003·0 cites·1 claims
- 4036US4409341AComposition for fire retardant urethane foamHITACHI LTD·Filed 1981·Granted Oct 11, 1983·5 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →