Inventor · disambiguated record
Hideo Fujiwara
Also filed as: FUJIWARA HIDEO
73 granted patents·3 pending applications·1,253 citations·filing 1974–2020
99Inventor score
Top patents by PatentIndex Score
76 records- 0194US5648885AGiant magnetoresistive effect sensor, particularly having a multilayered magnetic thin film layerHITACHI LTD·Filed 1995·Granted Jul 15, 1997·111 cites·56 claims
- 0294US4013911ADisplacement - electricity transducerHITACHI LTD·Filed 1974·Granted Mar 22, 1977·69 cites·53 claims
- 0392US6560077B2CPP spin-valve deviceUNIV ALABAMA·Filed 2000·Granted May 6, 2003·108 cites·33 claims
- 0492US4636897APerpendicular magnetic recording and reproducing thin film headHITACHI LTD·Filed 1983·Granted Jan 13, 1987·55 cites·11 claims
- 0592US4005396ADigital displacement sensor with zigzag coilsHITACHI LTD·Filed 1974·Granted Jan 25, 1977·68 cites·12 claims
- 0689US4840844AMagnetic recording mediumHITACHI LTD·Filed 1987·Granted Jun 20, 1989·38 cites·18 claims
- 0789US4651248AThin-film magnetic headHITACHI LTD·Filed 1983·Granted Mar 17, 1987·34 cites·8 claims
- 0888US4559572AMagnetic head and method of fabricating sameHITACHI LTD·Filed 1984·Granted Dec 17, 1985·29 cites·6 claims
- 0986US4610935AMagnetic film structureHITACHI LTD·Filed 1984·Granted Sep 9, 1986·41 cites·24 claims
- 1086US4571650AMagneto-optic information storage system utilizing a self-coupled laserHITACHI LTD·Filed 1983·Granted Feb 18, 1986·28 cites·20 claims
- 1183US11569699B2Holder, rotor, motor, and method for manufacturing rotorNIDEC CORP·Filed 2020·Granted Jan 31, 2023·1 cites·19 claims
- 1283US4631612AMagnetic recording and reproducing systemSHIIKI KAZUO·Filed 1983·Granted Dec 23, 1986·29 cites·9 claims
- 1382US5543221AMagnetic recording mediumHITACHI MAXELL·Filed 1993·Granted Aug 6, 1996·45 cites·12 claims
- 1482US4316228AMagnetic headHITACHI LTD·Filed 1979·Granted Feb 16, 1982·22 cites·7 claims
- 1582US4031496AVariable inductorHITACHI LTD·Filed 1974·Granted Jun 21, 1977·30 cites·11 claims
- 1681US7795919B2Transmitter driver circuit in high-speed serial communications systemRICOH KK·Filed 2006·Granted Sep 14, 2010·11 cites·18 claims
- 1777US4656547AComposite type magnetic head for recording and reproducing high frequency signalsHITACHI LTD·Filed 1984·Granted Apr 7, 1987·19 cites·13 claims
- 1875US11228220B2Bus-bar unit and motorNIDEC CORP·Filed 2018·Granted Jan 18, 2022·1 cites·10 claims
- 1974US4621030APerpendicular magnetic recording medium and manufacturing method thereofHITACHI LTD·Filed 1983·Granted Nov 4, 1986·24 cites·33 claims
- 2073US4774616AMagnetic head having an integrated recording and playback head and an erasure headHITACHI LTD·Filed 1984·Granted Sep 27, 1988·17 cites·4 claims
- 2173US4411716AAmorphous alloys for magnetic head core and video magnetic head using sameHITACHI LTD·Filed 1981·Granted Oct 25, 1983·16 cites·15 claims
- 2272US4439794AMagnetic headHITACHI LTD·Filed 1981·Granted Mar 27, 1984·16 cites·11 claims
- 2370US5139884AMagnetic recording medium comprising an aluminum substrate in which pores formed by anodic oxidation contain crystallographicaly discontinuous particles of fe-alloyHITACHI MAXELL·Filed 1989·Granted Aug 18, 1992·16 cites·6 claims
- 2469US5783320AMagneto-optical recording medium and process for producing the sameHITACHI MAXELL·Filed 1997·Granted Jul 21, 1998·18 cites·27 claims
- 2568US7538987B2CPP spin-valve elementUNIV ALABAMA·Filed 2003·Granted May 26, 2009·7 cites·13 claims
- 2668US6735730B1Integrated circuit with design for testability and method for designing the sameSEMICONDUCTOR TECH ACAD RES CT·Filed 2000·Granted May 11, 2004·16 cites·10 claims
- 2768US5068152AMagnetic recording mediumHITACHI MAXELL·Filed 1988·Granted Nov 26, 1991·25 cites·19 claims
- 2867US9316504B2Navigation device and guidance method thereofSUMIZAWA AKIO·Filed 2010·Granted Apr 19, 2016·3 cites·5 claims
- 2965US5480694AMagnetic recording mediumHITACHI MAXELL·Filed 1990·Granted Jan 2, 1996·26 cites·8 claims
- 3063US7735892B2Front portion structure of vehicleHONDA MOTOR CO LTD·Filed 2008·Granted Jun 15, 2010·2 cites·6 claims
- 3163US5021276AOptical data recording medium and manufacturing method thereofHITACHI MAXELL·Filed 1989·Granted Jun 4, 1991·13 cites·23 claims
- 3263US4828919AMagnetic recording medium and process for preparing the sameHITACHI MAXELL·Filed 1987·Granted May 9, 1989·12 cites·25 claims
- 3362US6292915B1Method of design for testability and method of test sequence generationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Sep 18, 2001·24 cites·14 claims
- 3462US4450494AMagnetic headHITACHI LTD·Filed 1981·Granted May 22, 1984·11 cites·28 claims
- 3561US6781905B2Serial data detection circuit performing same offset adjustment to signal receiver as performed to reference receiverRICOH KK·Filed 2003·Granted Aug 24, 2004·6 cites·18 claims
- 3661US4996089AOptical data recording mediumHITACHI MAXELL·Filed 1989·Granted Feb 26, 1991·12 cites·16 claims
- 3760US5637411AMagneto-optical recording medium and process for producing the sameHITACHI MAXELL·Filed 1994·Granted Jun 10, 1997·11 cites·13 claims
- 3860US5190005AAttaching structure for oil pump of engineSUZUKI MOTOR CO·Filed 1991·Granted Mar 2, 1993·21 cites·4 claims
- 3960US4803578AAssembly for stably mounting magnetic head on carriageHITACHI MAXELL·Filed 1986·Granted Feb 7, 1989·12 cites·15 claims
- 4058US4895758AMagnetic recording mediumHITACHI MAXELL·Filed 1985·Granted Jan 23, 1990·16 cites·7 claims
- 4156US9816825B2Navigation device and method of searching route by the sameSUMIZAWA AKIO·Filed 2010·Granted Nov 14, 2017·1 cites·10 claims
- 4256US4972285AAmorphous magnetic alloy of Co-Nb-Zr system and magnetic head made from the sameHITACHI LTD·Filed 1988·Granted Nov 20, 1990·11 cites·8 claims
- 4354US4948667AMagnetic headHITACHI MAXELL·Filed 1987·Granted Aug 14, 1990·9 cites·19 claims
- 4453US11437879B2Bus-bar unit and motorNIDEC CORP·Filed 2018·Granted Sep 6, 2022·0 cites·11 claims
- 4553US4941064AMagnetic head having a pair of cores in which the opposing surfaces thereof are coated with a non-magnetic layer and a low melting point glass layerHITACHI MAXELL·Filed 1988·Granted Jul 10, 1990·9 cites·5 claims
- 4651US5191859AWater pumping apparatus for an internal combustion engineSUZUKI MOTOR CO·Filed 1992·Granted Mar 9, 1993·12 cites·2 claims
- 4750US10958143B2Assembling deviceHONDA MOTOR CO LTD·Filed 2019·Granted Mar 23, 2021·0 cites·5 claims
- 4849US5737273ASense amplifier and reading circuit with sense amplifierRICOH KK·Filed 1996·Granted Apr 7, 1998·11 cites·9 claims
- 4949US4814920AMagnetic head with a sliderHITACHI MAXELL·Filed 1985·Granted Mar 21, 1989·8 cites·10 claims
- 5049US4745507AComposite type magnetic head with non-magnetic member in coil mounting portionHITACHI LTD·Filed 1986·Granted May 17, 1988·7 cites·18 claims
Showing the top 50 of 76 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →