Inventor · disambiguated record
Takao Hayashi
Also filed as: HAYASHI TAKAO
92 granted patents·25 pending applications·1,576 citations·filing 1973–2025
99Inventor score
Files withMITSUI MINING & SMELTING CO23PANASONIC IP MAN CO LTD19MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13FUJI PHOTO FILM CO LTD10ASAHI GLASS CO LTD7
Top patents by PatentIndex Score
117 records- 0196US4504401AStainproofing agent and process for its preparationASAHI GLASS CO LTD·Filed 1983·Granted Mar 12, 1985·70 cites·7 claims
- 0292US9430950B2Transportation vehicle system and charging method for the transportation vehicle systemMURATA MACHINERY LTD·Filed 2013·Granted Aug 30, 2016·13 cites·6 claims
- 0392US6185167B1Optical head and information recording and reproduction apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Feb 6, 2001·76 cites·29 claims
- 0490US8712600B2Traveling vehicle system and self-diagnosis method for the traveling vehicle systemHAYASHI TAKAO·Filed 2011·Granted Apr 29, 2014·12 cites·19 claims
- 0590US5781351AMounting structure of objective lens for optical pick-up used for optical disk deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Jul 14, 1998·117 cites·15 claims
- 0690US3952129ACoated pressure sensitive copying paperFUJI PHOTO FILM CO LTD·Filed 1973·Granted Apr 20, 1976·48 cites·6 claims
- 0789US5658706AResist composition for forming a pattern comprising a pyridinium compound as an additiveTOSHIBA KK·Filed 1994·Granted Aug 19, 1997·82 cites·7 claims
- 0884US7408314B2Control device for movable bodyMURATA MACHINERY LTD·Filed 2006·Granted Aug 5, 2008·15 cites·6 claims
- 0984US5430699AOptical reading and writing deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Jul 4, 1995·36 cites·11 claims
- 1084US3997507ANovel oil and water repellent compositionASAHI GLASS CO LTD·Filed 1974·Granted Dec 14, 1976·29 cites·2 claims
- 1183US5467328ALens drive mechanism for optical disc player with parallel support springs having different spring constantsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Nov 14, 1995·35 cites·20 claims
- 1283US4145382AProcess for producing polyfluoroalkyl phosphatesASAHI GLASS CO LTD·Filed 1977·Granted Mar 20, 1979·40 cites·15 claims
- 1381US6275463B1Optical headMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Aug 14, 2001·32 cites·10 claims
- 1481US6120576AMethod for preparing nickel fine powderMITSUI MINING & SMELTING CO·Filed 1998·Granted Sep 19, 2000·55 cites·19 claims
- 1581US5957828ASilver sol, preparation thereof, coating material for forming transparent conductive film and transparent conductive filmMITSUI MINING & SMELTING CO·Filed 1998·Granted Sep 28, 1999·52 cites·6 claims
- 1681US5790504AIntegrated optical head with an emitting light splitting polarizing prism and a detecting light splitting polarizing elementMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Aug 4, 1998·36 cites·13 claims
- 1780US6438091B2Optical headMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 20, 2002·12 cites·11 claims
- 1880US3934070ARecording sheet and color developer thereforFUJI PHOTO FILM CO LTD·Filed 1973·Granted Jan 20, 1976·27 cites·14 claims
- 1979US8306393B2Information recording apparatus, information copying system, method for copying information, program and computer readable recording mediumYAMASAKI FUMITOMO·Filed 2007·Granted Nov 6, 2012·3 cites·12 claims
- 2079US5629919ATwo plate-like beam splitting deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted May 13, 1997·37 cites·12 claims
- 2179US4081419AProcess for producing a polymer emulsionTOYO SODA MFG CO LTD·Filed 1976·Granted Mar 28, 1978·20 cites·6 claims
- 2278US6632524B1Nickel powder, method for preparing the same and paste for use in making electrodes for electronic partsMITSUI MINING & SMELTING CO·Filed 2000·Granted Oct 14, 2003·24 cites·6 claims
- 2378US5178909AProduction of silver-coated copper-based powdersMITSUI MINING & SMELTING CO·Filed 1991·Granted Jan 12, 1993·39 cites·10 claims
- 2478US4600811ASubscriber line interface circuitNEC CORP·Filed 1983·Granted Jul 15, 1986·31 cites·11 claims
- 2577US7882513B2Optical disc device and method for controlling optical disc devicePANASONIC CORP·Filed 2006·Granted Feb 1, 2011·3 cites·32 claims
- 2677US5698315AElectrically-conductive colorless transparent barium sulfate fillerMITSUI MINING & SMELTING CO·Filed 1996·Granted Dec 16, 1997·37 cites·6 claims
- 2777US4001309AMethod of preparing polyfluoroalkyl group containing compoundsASAHI GLASS CO LTD·Filed 1973·Granted Jan 4, 1977·10 cites·12 claims
- 2875US8135496B2Travel control system and control method for traveling vehiclesHAYASHI TAKAO·Filed 2010·Granted Mar 13, 2012·7 cites·11 claims
- 2975US8036771B2Transportation vehicle system and method of controlling transportation vehicleMURATA MACHINERY LTD·Filed 2007·Granted Oct 11, 2011·12 cites·8 claims
- 3074US5744281AResist composition for forming a pattern and method of forming a pattern wherein the composition 4-phenylpyridine as an additiveTOSHIBA KK·Filed 1997·Granted Apr 28, 1998·34 cites·6 claims
- 3174US2024309527A1Method for operating water electrolyzer and water electrolyzerPANASONIC IP MAN CO LTD·Filed 2024·Application pending·0 cites
- 3273US5997775AElectrically conductive barium sulfate-containing composition and process of producingMITSUI KINZOKU MITSUI MAINING·Filed 1997·Granted Dec 7, 1999·36 cites·3 claims
- 3372US4013580AMethod of preventing formation of popcorn chloroprene polymerTOYO SODA MFG CO LTD·Filed 1975·Granted Mar 22, 1977·8 cites·5 claims
- 3471US6391087B1Copper fine powder and method for preparing the sameMITSUI MINING & SMELTING CO·Filed 2000·Granted May 21, 2002·11 cites·8 claims
- 3571US2024044028A1Water electrolyzer and method for controlling the samePANASONIC IP MAN CO LTD·Filed 2023·Application pending·0 cites
- 3671US2024060198A1Water electrolyzer and method for controlling the samePANASONIC IP MAN CO LTD·Filed 2023·Application pending·0 cites
- 3771US2024052505A1Water electrolysis cell and water electrolyzerPANASONIC IP MAN CO LTD·Filed 2023·Application pending·0 cites
- 3870US5772924AComposite conductive powder and conductive film formed from the powderMITSUI MINING & SMELTING CO·Filed 1997·Granted Jun 30, 1998·30 cites·8 claims
- 3970US4138417AProcess for producing perfluorocarboxylic acidASAHI GLASS CO LTD·Filed 1977·Granted Feb 6, 1979·7 cites·7 claims
- 4069US6503560B2Composite nickel fine powder and method for preparing the sameMITSUI MINING & SMELTING CO·Filed 2001·Granted Jan 7, 2003·11 cites·3 claims
- 4169US4054547APolymerization of chloropreneTOYO SODA MFG CO LTD·Filed 1975·Granted Oct 18, 1977·13 cites·5 claims
- 4268US4916172AReaction curable composition and artificial marbleASAHI GLASS CO LTD·Filed 1988·Granted Apr 10, 1990·18 cites·10 claims
- 4367US7696295B2Condensation products of silicic acid derivatives and optical waveguide devices using the samePANASONIC ELEC WORKS CO LTD·Filed 2006·Granted Apr 13, 2010·1 cites·11 claims
- 4467US7304920B2Optical head that detects tilt in an optical diskMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Dec 4, 2007·6 cites·7 claims
- 4567US6470796B2Press machineMURATA MACHINERY LTD·Filed 2000·Granted Oct 29, 2002·11 cites·3 claims
- 4667US6406513B2Nickel powder and conductive pasteMITSUI MINING & SMELTING CO·Filed 2001·Granted Jun 18, 2002·9 cites·8 claims
- 4767US4041193AMethod for fanning each set of multi-ply sheetsFUJI PHOTO FILM CO LTD·Filed 1974·Granted Aug 9, 1977·10 cites·8 claims
- 4867US2023220571A1Electrode catalyst for water electrolysis cell, water electrolysis cell and water electrolyzerPANASONIC IP MAN CO LTD·Filed 2023·Application pending·0 cites
- 4967US2023227989A1Electrode catalyst ink, electrode catalyst, water electrolysis cell, and water electrolyzerPANASONIC IP MAN CO LTD·Filed 2023·Application pending·0 cites
- 5066US9929411B2Carbon-based material, electrode catalyst, electrode, gas diffusion electrode, electrochemical device, fuel battery, and process for producing carbon-based materialPANASONIC IP MAN CO LTD·Filed 2013·Granted Mar 27, 2018·1 cites·17 claims
Showing the top 50 of 117 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Takao Hayashi 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 →