Inventor · disambiguated record
Masatoshi Hayakawa
Also filed as: HAYAKAWA MASATOSHI
38 granted patents·5 pending applications·450 citations·filing 1978–2020
97Inventor score
Top patents by PatentIndex Score
43 records- 0194US4640871AMagnetic material having high permeability in the high frequency rangeSONY CORP·Filed 1985·Granted Feb 3, 1987·68 cites·3 claims
- 0293US5365391AMagnetic reproducing head having a distributed-constant circuit type magnetic field detectorSONY CORP·Filed 1992·Granted Nov 15, 1994·72 cites·11 claims
- 0389US10640015B2Sliding deviceTOYOTA BOSHOKU KK·Filed 2018·Granted May 5, 2020·4 cites·8 claims
- 0480US7669826B2Seat sliding apparatus for vehicleAISIN SEIKI·Filed 2006·Granted Mar 2, 2010·18 cites·6 claims
- 0580US5057380ASoft magnetic thin films of alloys of feconi or fecody and laminates comprising alternate layers of face centered cubic and body centered cubic crystal structureSONY CORP·Filed 1988·Granted Oct 15, 1991·35 cites·5 claims
- 0677US7665791B2Seat slide device for vehicleAISIN SEIKI·Filed 2007·Granted Feb 23, 2010·16 cites·7 claims
- 0776US4379004AMethod of manufacturing an amorphous magnetic alloySONY CORP·Filed 1980·Granted Apr 5, 1983·22 cites·7 claims
- 0875US5331491AHigh-density magnetic recording and reproducing headSONY CORP·Filed 1992·Granted Jul 19, 1994·23 cites·8 claims
- 0975US4796241ADevice for producing a high frequency modulation magnetic field used in magneto-optical recordingSONY CORP·Filed 1987·Granted Jan 3, 1989·21 cites·5 claims
- 1074US4444602AMethod of manufacturing amorphous magnetic alloy ribbon and use for magnetostriction delay linesSONY CORP·Filed 1982·Granted Apr 24, 1984·15 cites·6 claims
- 1170US9475722B2Optical fiber producing method and apparatus and optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 2013·Granted Oct 25, 2016·2 cites·4 claims
- 1267US4639278AMethod of manufacturing an amorphous magnetic alloySONY CORP·Filed 1983·Granted Jan 27, 1987·15 cites·7 claims
- 1366US11378737B2Optical fiber preform, method for manufacturing optical fiber preform, and method for setting striae pitch of optical fiber preformSUMITOMO ELECTRIC INDUSTRIES·Filed 2018·Granted Jul 5, 2022·0 cites·10 claims
- 1464US8006949B2Seat slide device for vehicleAISIN SEIKI·Filed 2007·Granted Aug 30, 2011·8 cites·15 claims
- 1562US4953050AMagnetic head with Ru containing soft magnetic alloy in gapSONY CORP·Filed 1990·Granted Aug 28, 1990·15 cites·2 claims
- 1661US9120694B2Glass preform heating furnaceENOMOTO TADASHI·Filed 2012·Granted Sep 1, 2015·1 cites·7 claims
- 1761US5515222AMagnetic head core arrangement having medium facing surface sides formed of single-crystal ferriteSONY CORP·Filed 1994·Granted May 7, 1996·13 cites·4 claims
- 1861US4475962AAnnealing method for amorphous magnetic alloySONY CORP·Filed 1983·Granted Oct 9, 1984·12 cites·8 claims
- 1960US12012349B2Glass fine particle deposit and method for manufacturing glass preformSUMITOMO ELECTRIC INDUSTRIES·Filed 2020·Granted Jun 18, 2024·0 cites·5 claims
- 2060US4473415AMethod of manufacturing an amorphous magnetic alloySONY CORP·Filed 1982·Granted Sep 25, 1984·10 cites·1 claims
- 2157US5737154ARotary magnetic head apparatus with circuitry for driving head and circuitry for transmitting output signals in noncontact fashion disposed on rotary drumsSONY CORP·Filed 1996·Granted Apr 7, 1998·13 cites·10 claims
- 2254US2021122664A1Method for manufacturing glass preformSUMITOMO ELECTRIC INDUSTRIES·Filed 2019·Application pending·0 cites
- 2354US2021246065A1Method for producing glass particulate depositSUMITOMO ELECTRIC INDUSTRIES·Filed 2019·Application pending·0 cites
- 2452US4311539AMethod of manufacturing a high permeability amorphous magnetic alloySONY CORP·Filed 1980·Granted Jan 19, 1982·9 cites·7 claims
- 2552US2020262735A1Method for producing glass particulate deposit, method for producing glass preform, and glass preformSUMITOMO ELECTRIC INDUSTRIES·Filed 2018·Application pending·0 cites
- 2651US5585983AMagnetic headSONY CORP·Filed 1991·Granted Dec 17, 1996·9 cites·12 claims
- 2750US4748000ASoft magnetic thin filmSONY CORP·Filed 1986·Granted May 31, 1988·9 cites·6 claims
- 2850US2020223736A1Method for producing glass fine particle deposit, method for producing glass base material, and glass fine particle depositSUMITOMO ELECTRIC INDUSTRIES·Filed 2018·Application pending·0 cites
- 2945US8410989B2Antenna structure including radiating conductor and magnetic material having dielectric propertyHAYAKAWA MASATOSHI·Filed 2006·Granted Apr 2, 2013·1 cites·11 claims
- 3045US4707417AMagnetic composite filmSONY CORP·Filed 1985·Granted Nov 17, 1987·6 cites·2 claims
- 3144US5182690AFe-n-based soft magnetic thin films and magnetic heads using such filmsSONY CORP·Filed 1990·Granted Jan 26, 1993·8 cites·8 claims
- 3243US11607871B2Partition wall for formation of lipid bilayer membrane, and method for producing sameKANAGAWA INSTITUTE OF INDUSTRIAL SCIENCE AND TECH·Filed 2019·Granted Mar 21, 2023·0 cites·4 claims
- 3343US4276683AMethod for winding electrode foils and separators for capacitorCKD CORP·Filed 1978·Granted Jul 7, 1981·5 cites·3 claims
- 3443US2022033294A1Method for manufacturing glass fine particle deposit and method for manufacturing glass base materialSUMITOMO ELECTRIC INDUSTRIES·Filed 2019·Application pending·0 cites
- 3536US5852536AMagnetic headSONY CORP·Filed 1997·Granted Dec 22, 1998·4 cites·11 claims
- 3636US5475551AMagnetic headSONY CORP·Filed 1994·Granted Dec 12, 1995·3 cites·8 claims
- 3734US5867887AManufacturing method for magnetic headSONY CORP·Filed 1996·Granted Feb 9, 1999·2 cites·9 claims
- 3834US4375024AApparatus for welding base pins of fluorescent lampCKD CORP·Filed 1980·Granted Feb 22, 1983·4 cites·5 claims
- 3933US5875081AMagnetic headSONY CORP·Filed 1997·Granted Feb 23, 1999·2 cites·3 claims
- 4030US5266418AMagnetic recording mediumSONY CORP·Filed 1990·Granted Nov 30, 1993·1 cites·4 claims
- 4125US4382645AApparatus for sealing lamp mount to lamp tubeCKD CORP·Filed 1980·Granted May 10, 1983·3 cites·4 claims
- 4224US4311457ABasing heating apparatusCKD CORP·Filed 1980·Granted Jan 19, 1982·1 cites·4 claims
- 4318US4367574AFluorescent tube holderCKD CORP·Filed 1980·Granted Jan 11, 1983·0 cites·7 claims
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