Inventor · disambiguated record
Toshihiko Ohta
Also filed as: OHTA TOSHIHIKO
39 granted patents·2 pending applications·922 citations·filing 1976–2020
98Inventor score
Top patents by PatentIndex Score
41 records- 0196US4668577APolyethylene filaments and their productionTOYO BOSEKI·Filed 1986·Granted May 26, 1987·56 cites·2 claims
- 0293US5905611AThin film magnetic head responsive to spin-dependent scatteringTOSHIBA KK·Filed 1997·Granted May 18, 1999·66 cites·18 claims
- 0392US6172858B1Thin film headTOSHIBA KK·Filed 2000·Granted Jan 9, 2001·29 cites·15 claims
- 0491US5329413AMagnetoresistance sensor magnetically coupled with high-coercive force film at two end regionsTOSHIBA KK·Filed 1993·Granted Jul 12, 1994·55 cites·14 claims
- 0590US4617233AStretched polyethylene filaments of high strength and high modulus, and their productionTOYO BOSEKI·Filed 1984·Granted Oct 14, 1986·45 cites·2 claims
- 0689US6046891AThin film headTOSHIBA KK·Filed 1998·Granted Apr 4, 2000·43 cites·22 claims
- 0786US6377723B1Optical waveguide circuit, and method for compensating the light transmission wavelengthFURUKAWA ELECTRIC CO LTD·Filed 2000·Granted Apr 23, 2002·34 cites·30 claims
- 0884US6404946B1Arrayed waveguide grating type optical multiplexer/demultiplexerFURUKAWA ELECTRIC CO LTD·Filed 2000·Granted Jun 11, 2002·29 cites·17 claims
- 0982US4643865AProcess for the production of a drawn product of crystalline polymer having high tenacity and high modulusTOYO BOSEKI·Filed 1984·Granted Feb 17, 1987·22 cites·9 claims
- 1079US5461527AMagneto-resistive headTOSHIBA KK·Filed 1994·Granted Oct 24, 1995·28 cites·11 claims
- 1179US5414786AOptical waveguide component with a molded resin portion having accurately aligned guide pin holes thereinFURUKAWA ELECTRIC CO LTD·Filed 1993·Granted May 9, 1995·50 cites·14 claims
- 1275US6542666B2Optical componentFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Apr 1, 2003·13 cites·18 claims
- 1375US5361382AMethod of connecting optical waveguide and optical fiberFURUKAWA ELECTRIC CO LTD·Filed 1992·Granted Nov 1, 1994·42 cites·10 claims
- 1475US5222168AMethod for stacking ferrules of a stacked-type optical connector and a stacked-type optical connectorFURUKAWA ELECTRIC CO LTD·Filed 1991·Granted Jun 22, 1993·50 cites·24 claims
- 1572US5499668AProcess for making electronic deviceHITACHI LTD·Filed 1994·Granted Mar 19, 1996·43 cites·10 claims
- 1672US4098860AProduction of biaxially drawn film of polyamide blendTOYO BOSEKI·Filed 1976·Granted Jul 4, 1978·32 cites·8 claims
- 1771US5185825AOptical switching connectorFURUKAWA ELECTRIC CO LTD·Filed 1991·Granted Feb 9, 1993·38 cites·13 claims
- 1871US4825056AThin-film electromagnetic transducerTOSHIBA KK·Filed 1986·Granted Apr 25, 1989·34 cites·20 claims
- 1969US5731066AElectronic circuit deviceHITACHI LTD·Filed 1995·Granted Mar 24, 1998·38 cites·6 claims
- 2067US7091870B2Security system and method of security service businessNOF CORP·Filed 2002·Granted Aug 15, 2006·9 cites·9 claims
- 2167US5981786AProcess for producing (meth)acrylate derivativesNOF CORP·Filed 1998·Granted Nov 9, 1999·13 cites·6 claims
- 2266US6269998B1Process for manufacturing electronic circuitsHITACHI LTD·Filed 2000·Granted Aug 7, 2001·9 cites·8 claims
- 2361US11427520B2Method for producing tetrafluoroethylene and/or hexafluoropropyleneDAIKIN IND LTD·Filed 2020·Granted Aug 30, 2022·0 cites·1 claims
- 2460US6161748AProcess for manufacturing electronic circuitsHITACHI LTD·Filed 2000·Granted Dec 19, 2000·6 cites·5 claims
- 2559US6770877B2Method and apparatus for analyzing vapors generated from explosivesHITACHI LTD·Filed 2003·Granted Aug 3, 2004·4 cites·2 claims
- 2659US4779953AOptical fiber cord or cable containing a polyethylene filament tensile memberTOYO BOSEKI·Filed 1986·Granted Oct 25, 1988·9 cites·29 claims
- 2757US5940728AProcess for manufacturing electronic circuitsHITACHI LTD·Filed 1996·Granted Aug 17, 1999·15 cites·21 claims
- 2856US5022140AMethod of manufacturing magnetic headTOSHIBA KK·Filed 1990·Granted Jun 11, 1991·11 cites·18 claims
- 2953US4990067AHermetic compressorMATSUSHITA REFRIGERATION·Filed 1989·Granted Feb 5, 1991·14 cites·7 claims
- 3052US5249100AElectronic circuit device provided with a ceramic substrate having lead pins bonded thereto by solderHITACHI LTD·Filed 1990·Granted Sep 28, 1993·22 cites·9 claims
- 3151US4818853AData card with inductive signal transfer deviceTOSHIBA KK·Filed 1987·Granted Apr 4, 1989·17 cites·25 claims
- 3250US4824619AProcess of producing polyethylene drawn filaments and drawn filmsTOYO BOSEKI·Filed 1987·Granted Apr 25, 1989·10 cites·17 claims
- 3348US4910394ATransducer for converting a signal to read out data and method for forming the sameTOSHIBA KK·Filed 1988·Granted Mar 20, 1990·12 cites·13 claims
- 3446US6410881B2Process for manufacturing electronic circuitsHITACHI LTD·Filed 2001·Granted Jun 25, 2002·1 cites·12 claims
- 3546US4851508APolyester fibers having high strength and high modulus and process for producing the sameTOYO BOSEKI·Filed 1987·Granted Jul 25, 1989·6 cites·9 claims
- 3646US4800121ADrawn polyethylene filament tensile memberTOYO BOSEKI·Filed 1987·Granted Jan 24, 1989·5 cites·14 claims
- 3739US6133135AProcess for manufacturing electronic circuitsHITACHI LTD·Filed 1999·Granted Oct 17, 2000·5 cites·8 claims
- 3838US4673724APolymeric whisker and production of the sameTOYO BOSEKI·Filed 1985·Granted Jun 16, 1987·4 cites·16 claims
- 3936US2003035624A1Fiber-based optical componentFiled 2002·Application pending·0 cites
- 4035US2001036335A1Optical componentFiled 2001·Application pending·0 cites
- 4132US4765528APlating process for an electronic partHITACHI LTD·Filed 1986·Granted Aug 23, 1988·3 cites·3 claims
Join the waitlist — get patent alerts
Get an alert when Toshihiko Ohta files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →