Inventor · disambiguated record
Kazuhisa Uomi
Also filed as: UOMI KAZUHISA
40 granted patents·2 pending applications·1,074 citations·filing 1986–2004
98Inventor score
Top patents by PatentIndex Score
42 records- 0195US4885753ASemiconductor laser device of variable wavelength typeHITACHI LTD·Filed 1988·Granted Dec 5, 1989·69 cites·22 claims
- 0294US5937274AFabrication method for AlGaIn NPAsSb based devicesHITACHI LTD·Filed 1997·Granted Aug 10, 1999·135 cites·12 claims
- 0392US5912913AVertical cavity surface emitting laser, optical transmitter-receiver module using the laser, and parallel processing system using the laserHITACHI LTD·Filed 1996·Granted Jun 15, 1999·105 cites·35 claims
- 0492US5119393ASemiconductor laser device capable of controlling wavelength shiftHITACHI LTD·Filed 1990·Granted Jun 2, 1992·81 cites·21 claims
- 0591US4873691AWavelength-tunable semiconductor laserHITACHI LTD·Filed 1988·Granted Oct 10, 1989·46 cites·21 claims
- 0688US4894835ASurface emitting type semiconductor laserHITACHI LTD·Filed 1988·Granted Jan 16, 1990·40 cites·12 claims
- 0787US6546034B2Semiconductor laser device, semiconductor laser array device and optical fiber transmission systemHITACHI LTD·Filed 2000·Granted Apr 8, 2003·28 cites·13 claims
- 0886US5177758ASemiconductor laser device with plural active layers and changing optical propertiesHITACHI LTD·Filed 1991·Granted Jan 5, 1993·54 cites·36 claims
- 0983USRE38072EFabrication method for AlGaInNPAsSb based devicesOPNEXT JAPAN INC·Filed 2001·Granted Apr 8, 2003·21 cites·13 claims
- 1082US6678479B1Semiconductor electro-absorption optical modulator integrated light emission element light emission element module and optical transmission systemOPNEXT JAPAN INC·Filed 2000·Granted Jan 13, 2004·22 cites·16 claims
- 1182US5574289ASemiconductor optical integrated device and light receiver using said deviceHITACHI LTD·Filed 1993·Granted Nov 12, 1996·60 cites·23 claims
- 1274US6606443B2Optical transmission deviceHITACHI LTD·Filed 2002·Granted Aug 12, 2003·11 cites·5 claims
- 1373US4881235ASemiconductor laser having a multiple quantum well structure doped with impuritiesHITACHI LTD·Filed 1987·Granted Nov 14, 1989·21 cites·40 claims
- 1472US6236771B1Optical transmission apparatusHITACHI LTD·Filed 1999·Granted May 22, 2001·41 cites·15 claims
- 1572US5363393ASurface emitting semiconductor laserHITACHI LTD·Filed 1993·Granted Nov 8, 1994·28 cites·11 claims
- 1671US5132981ASemiconductor optical deviceHITACHI LTD·Filed 1990·Granted Jul 21, 1992·31 cites·22 claims
- 1771US4835578ASemiconductor device having a quantum wire and a method of producing the sameHITACHI LTD·Filed 1987·Granted May 30, 1989·26 cites·7 claims
- 1870US5146513ASemiconductor optical device and array of the sameHITACHI LTD·Filed 1991·Granted Sep 8, 1992·31 cites·16 claims
- 1968US4881238ASemiconductor laser having quantum well active region doped with impuritiesHITACHI LTD·Filed 1986·Granted Nov 14, 1989·17 cites·51 claims
- 2065US5179567ASemiconductor laser device, method of fabricating the same and optical system of utilizing the sameHITACHI LTD·Filed 1991·Granted Jan 12, 1993·21 cites·13 claims
- 2161US4780879ASemiconductor laser device having little astigmatismHITACHI LTD·Filed 1987·Granted Oct 25, 1988·14 cites·23 claims
- 2261US4752934AMulti quantum well laser with parallel injectionHITACHI LTD·Filed 1986·Granted Jun 21, 1988·13 cites·28 claims
- 2359US5654583ASemiconductor device having first and second semiconductor structures directly bonded to each otherHITACHI LTD·Filed 1995·Granted Aug 5, 1997·21 cites·69 claims
- 2457USRE41336EFabrication method for algainnpassb based devicesOPNEXT JAPAN INC·Filed 2003·Granted May 18, 2010·4 cites·32 claims
- 2557US5042049ASemiconductor optical deviceHITACHI LTD·Filed 1990·Granted Aug 20, 1991·19 cites·16 claims
- 2651US7409113B2Semiconductor electro-absorption optical modulator, semiconductor electro-absorption optical modulator integrated laser, optical transmitter module and optical moduleOPNEXT JAPAN INC·Filed 2004·Granted Aug 5, 2008·4 cites·9 claims
- 2751US5572616AWaveguide deviceHITACHI LTD·Filed 1995·Granted Nov 5, 1996·12 cites·15 claims
- 2850US5044745ASemiconductor optical switch and array of the sameHITACHI LTD·Filed 1990·Granted Sep 3, 1991·13 cites·24 claims
- 2950US4800565ASemiconductor laser device having high optical intensity and reliabilityHITACHI LTD·Filed 1987·Granted Jan 24, 1989·9 cites·9 claims
- 3049US5136601ASemiconductor laserHITACHI LTD·Filed 1989·Granted Aug 4, 1992·8 cites·3 claims
- 3148US6459840B1Optical transmission deviceHITACHI LTD·Filed 1999·Granted Oct 1, 2002·12 cites·15 claims
- 3248US5073892ASemiconductor laser deviceHITACHI LTD·Filed 1990·Granted Dec 17, 1991·11 cites·21 claims
- 3348US4811354ASemiconductor laserHITACHI LTD·Filed 1986·Granted Mar 7, 1989·8 cites·30 claims
- 3445US5666455AWaveguide deviceHITACHI LTD·Filed 1996·Granted Sep 9, 1997·9 cites·3 claims
- 3545US4752933ASemiconductor laserHITACHI LTD·Filed 1986·Granted Jun 21, 1988·6 cites·16 claims
- 3643US4797891ASemiconductor laserHITACHI LTD·Filed 1986·Granted Jan 10, 1989·6 cites·22 claims
- 3743US2004101316A1Semiconductor electro-absorption optical modulator integrated light emission element, light emission element module and optical transmission systemHITACHI LTD·Filed 2003·Application pending·0 cites
- 3840US5394491ASemiconductor optical switch and array of the sameHITACHI LTD·Filed 1994·Granted Feb 28, 1995·7 cites·8 claims
- 3937US2001024462A1Semiconductor laser moduleFiled 2000·Application pending·0 cites
- 4036US5170404ASemiconductor laser device suitable for optical communications systems driveHITACHI LTD·Filed 1990·Granted Dec 8, 1992·5 cites·21 claims
- 4133US5247592ASemiconductor optical device and array of the sameHITACHI LTD·Filed 1992·Granted Sep 21, 1993·4 cites·4 claims
- 4231US4821275ALaser diodeHITACHI LTD·Filed 1988·Granted Apr 11, 1989·1 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →