Inventor · disambiguated record
Akira Yokota
Also filed as: KOMINE TAKASHI · YOKOTA AKIRA
64 granted patents·4 pending applications·1,637 citations·filing 1974–2020
99Inventor score
Files withSUMITOMO CHEMICAL CO21OLYMPUS OPTICAL CO18TOKYO OHKA KOGYO CO LTD13KOMATSU MFG CO LTD7JAPAN STEEL WORKS LTD4
Top patents by PatentIndex Score
68 records- 0197US4764001ARetrofocus-type objective for an endoscopeOLYMPUS OPTICAL CO·Filed 1987·Granted Aug 16, 1988·156 cites·5 claims
- 0296US4385086AMethod for preventing leaching of contaminants from solid surfacesTOKYO OHKA KOGYO CO LTD·Filed 1979·Granted May 24, 1983·75 cites·8 claims
- 0393US4986642AObjective lens system for endoscopes and image pickup system equipped with said objective lens systemOLYMPUS OPTICAL CO·Filed 1988·Granted Jan 22, 1991·91 cites·51 claims
- 0493US4833067ADeveloping solution for positive-working photoresist comprising tmah and non-ionic surfactantTOKYO OHKA KOGYO CO LTD·Filed 1988·Granted May 23, 1989·75 cites·1 claims
- 0593US4674844AObjective lens system for an endscopeOLYMPUS OPTICAL CO·Filed 1985·Granted Jun 23, 1987·95 cites·28 claims
- 0693US4656508AMeasuring endoscopeOLYMPUS OPTICAL CO·Filed 1985·Granted Apr 7, 1987·101 cites·23 claims
- 0790US4867546AObjective lens system for an endoscopeOLYMPUS OPTICAL CO·Filed 1988·Granted Sep 19, 1989·91 cites·70 claims
- 0889US4806001AObjective for an endoscopeOLYMPUS OPTICAL CO·Filed 1987·Granted Feb 21, 1989·67 cites·30 claims
- 0988US4746203AOptical system for endoscopeOLYMPUS OPTICAL CO·Filed 1987·Granted May 24, 1988·59 cites·13 claims
- 1088US4720178AOptical system for endoscopeOLYMPUS OPTICAL CO·Filed 1985·Granted Jan 19, 1988·59 cites·12 claims
- 1187US9529130B2Optical filmSUMITOMO CHEMICAL CO·Filed 2014·Granted Dec 27, 2016·7 cites·47 claims
- 1285US9383492B2Elliptical polarization plateSUMITOMO CHEMICAL CO·Filed 2014·Granted Jul 5, 2016·6 cites·11 claims
- 1384US4783156AOptical system for altering the direction of the visual field in endoscopesOLYMPUS OPTICAL CO·Filed 1987·Granted Nov 8, 1988·52 cites·9 claims
- 1483US4784937ADeveloping solution for positive-working photoresist comprising a metal ion free organic base and an anionic surfactantTOKYO OHKA KOGYO CO LTD·Filed 1986·Granted Nov 15, 1988·35 cites·2 claims
- 1582US9696475B2Optical filmSUMITOMO CHEMICAL CO·Filed 2014·Granted Jul 4, 2017·6 cites·47 claims
- 1681US4590149AMethod for fine pattern formation on a photoresistTOKYO OHKA KOGYO CO LTD·Filed 1984·Granted May 20, 1986·35 cites·1 claims
- 1780US5619380AObjective optical system for endoscopesOLYMPUS OPTICAL CO·Filed 1995·Granted Apr 8, 1997·69 cites·20 claims
- 1880US4844832AContaining an arylsulfonic acid, a phenol and a naphalenic solventTOKYO OHKA KOGYO CO LTD·Filed 1988·Granted Jul 4, 1989·31 cites·7 claims
- 1980US4738915APositive-working O-quinone diazide photoresist composition with 2,3,4-trihydroxybenzophenoneTOKYO OHKA KOGYO CO LTD·Filed 1987·Granted Apr 19, 1988·31 cites·6 claims
- 2078US4988171AImaging device and endoscope system provided with the sameOLYMPUS OPTICAL CO·Filed 1988·Granted Jan 29, 1991·32 cites·14 claims
- 2178US4216377ALight scattering smoke detectorNITTAN CO LTD·Filed 1978·Granted Aug 5, 1980·28 cites·5 claims
- 2277US9541691B2Optical FilmSUMITOMO CHEMICAL CO·Filed 2014·Granted Jan 10, 2017·4 cites·48 claims
- 2376US10890702B2Method for producing laminated bodySUMITOMO CHEMICAL CO·Filed 2014·Granted Jan 12, 2021·1 cites·1 claims
- 2476US10139540B2Optical filmSUMITOMO CHEMICAL CO·Filed 2014·Granted Nov 27, 2018·4 cites·45 claims
- 2576US9442232B2Optically anisotropic sheetSUMITOMO CHEMICAL CO·Filed 2014·Granted Sep 13, 2016·1 cites·28 claims
- 2676US4977450AImage pickup system for an endoscope using a first filter matched to a frequency of a fiber array and a second matched to a frequency of an image pickup deviceOLYMPUS OPTICAL CO·Filed 1989·Granted Dec 11, 1990·29 cites·17 claims
- 2772US4610953AAqueous developer solution for positive type photoresists with tetramethyl ammonium hydroxide and trimethyl hydroxyethyl ammonium hydroxideTOKYO OHKA KOGYO CO LTD·Filed 1984·Granted Sep 9, 1986·21 cites·4 claims
- 2871US4533341ABelt type power transmitting systemNISSAN MOTOR·Filed 1982·Granted Aug 6, 1985·22 cites·8 claims
- 2970US5785910AMethod for manufacturing laminate-molded products and apparatus thereforKOMATSU MFG CO LTD·Filed 1994·Granted Jul 28, 1998·36 cites·29 claims
- 3069US11402560B2Method for producing laminated bodySUMITOMO CHEMICAL CO·Filed 2020·Granted Aug 2, 2022·0 cites·1 claims
- 3165US4174222APositive-type O-quinone diazide containing photoresist compositionsTOKYO OHKA KOGYO CO LTD·Filed 1978·Granted Nov 13, 1979·16 cites·8 claims
- 3263US6815523B2Polyether and its production methodSUMITOMO CHEMICAL CO·Filed 2003·Granted Nov 9, 2004·5 cites·12 claims
- 3362US4702992AMethod of preparing photoresist material with undercoating of photoextinction agent and condensation productTOKYO OHKA KOGYO CO LTD·Filed 1985·Granted Oct 27, 1987·16 cites·7 claims
- 3459US4721372AObjective lens system for an endoscopeOLYMPUS OPTICAL CO·Filed 1985·Granted Jan 26, 1988·20 cites·6 claims
- 3556US6388044B1Polyether resin and coating solution for forming insulation filmSUMITOMO CHEMICAL CO·Filed 2000·Granted May 14, 2002·4 cites·8 claims
- 3656US4726920AMethod of controlling opening/closing of mold in injection molding machineJAPAN STEEL WORKS LTD·Filed 1986·Granted Feb 23, 1988·16 cites·3 claims
- 3752US5266247AMolding cycle control method of an injection molderKOMATSU MFG CO LTD·Filed 1991·Granted Nov 30, 1993·16 cites·10 claims
- 3851US4832883AMethod and apparatus for controlling screw positions in injection molding machineJAPAN STEEL WORKS LTD·Filed 1986·Granted May 23, 1989·14 cites·6 claims
- 3950US4666387APress apparatus for magnetic injection molding machinesJAPAN STEEL WORKS LTD·Filed 1985·Granted May 19, 1987·13 cites·4 claims
- 4050US3970522AMethod for the production of D-riboseTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1974·Granted Jul 20, 1976·12 cites·13 claims
- 4148US5256345AInjection control method for injection molderKOMATSU MFG CO LTD·Filed 1991·Granted Oct 26, 1993·13 cites·8 claims
- 4248US5178805AMethod of controlling injection speed selecting points of injection molderKOMATSU MFG CO LTD·Filed 1991·Granted Jan 12, 1993·13 cites·6 claims
- 4347US5260010AMethod of detecting filling weight for injection molderKOMATSU MFG CO LTD·Filed 1991·Granted Nov 9, 1993·13 cites·4 claims
- 4447US4867136AEndoscope apparatusOLYMPUS OPTICAL CO·Filed 1988·Granted Sep 19, 1989·31 cites·36 claims
- 4546US2015042941A1Optical filmSUMITOMO CHEMICAL CO·Filed 2014·Application pending·0 cites
- 4645US4661053APlastic magnet injection molding machineJAPAN STEEL WORKS LTD·Filed 1985·Granted Apr 28, 1987·11 cites·3 claims
- 4744US4929070AIllumination optical system for endoscopesOLYMPUS OPTICAL CO·Filed 1988·Granted May 29, 1990·32 cites·20 claims
- 4844US2005277751A1Resin and a coating solution for forming insulating film, and a method for forming an insulating filmSUMITOMO CHEMICAL CO·Filed 2005·Application pending·0 cites
- 4943US6706850B2Polyether copolymerSUMITOMO CHEMICAL CO·Filed 2001·Granted Mar 16, 2004·0 cites·4 claims
- 5043US4797348AMethod of forming a positive resist pattern in photoresist of o-naphthoquinone diazide and bisazide with UV imaging exposure and far UV overall exposureTOKYO OHKA KOGYO CO LTD·Filed 1988·Granted Jan 10, 1989·7 cites·4 claims
Showing the top 50 of 68 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →