Inventor · disambiguated record
Hitoshi Ogawa
Also filed as: MIYAZAWA LEGAL REPRESENTATIVE · MIYAZAWA LEGAL REPRESENTATIVE YUKIE · MIYAZAWA YUKIE · OGAWA HITOSHI
58 granted patents·16 pending applications·1,202 citations·filing 1974–2025
99Inventor score
Files withHITACHI LTD13MITSUBISHI ELECTRIC CORP12HITACHI GLOBAL STORAGE TECH8MATSUSHITA ELECTRIC WORKS LTD8PANASONIC IP MAN CO LTD8
Top patents by PatentIndex Score
74 records- 0195US7149930B2Recording/reproducing apparatusHITACHI GLOBAL STORAGE TECH·Filed 2002·Granted Dec 12, 2006·73 cites·15 claims
- 0293US5054199AHair cutterMATSUSHITA ELECTRIC WORKS LTD·Filed 1990·Granted Oct 8, 1991·128 cites·5 claims
- 0392US5715105AMethod of and apparatus for recording on and reproducing from disk-type recording medium having recording tracks with sectors each having an ID area and a data areaHITACHI LTD·Filed 1993·Granted Feb 3, 1998·43 cites·22 claims
- 0492US5367772AHair clipperMATSUSHITA ELECTRIC WORKS LTD·Filed 1993·Granted Nov 29, 1994·100 cites·6 claims
- 0592US4980588AWater-cooled vehicle generatorMITSUBISHI ELECTRIC CORP·Filed 1987·Granted Dec 25, 1990·77 cites·2 claims
- 0692US4589254ARegenerator for diesel particulate filterMITSUBISHI MOTORS CORP·Filed 1984·Granted May 20, 1986·79 cites·12 claims
- 0791US4520624ADiesel particulate filter systemMITSUBISHI MOTORS CORP·Filed 1984·Granted Jun 4, 1985·68 cites·10 claims
- 0890US7249416B2Comb-vibration preventing structure for hair cutterMATSUSHITA ELECTRIC WORKS LTD·Filed 2005·Granted Jul 31, 2007·32 cites·2 claims
- 0985US6445522B1Disk device and method of generating signal representing headHITACHI LTD·Filed 2000·Granted Sep 3, 2002·13 cites·33 claims
- 1085US6108158AMethod and apparatus for recording and reproducing disk-type recording medium with dual head including reading head and writing head having offset coresHITACHI LTD·Filed 1997·Granted Aug 22, 2000·33 cites·10 claims
- 1183US6317281B1Disk storage device having identification information for protecting stored dataHITACHI LTD·Filed 1995·Granted Nov 13, 2001·42 cites·8 claims
- 1282US9833914B2Hair clipperPANASONIC CORP·Filed 2013·Granted Dec 5, 2017·14 cites·14 claims
- 1382US7558931B2Write/read apparatus to control overwritingHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jul 7, 2009·5 cites·11 claims
- 1482US7139143B2Disk device and method of generating signal representing headHITACHI LTD·Filed 2003·Granted Nov 21, 2006·10 cites·16 claims
- 1581US5771248AApparatus and method for error correctionHITACHI LTD·Filed 1995·Granted Jun 23, 1998·33 cites·8 claims
- 1680US6400523B1Method and apparatus for recording and reproducing disk-type recording medium with dual head including reading head and writing head having offset coresHITACHI LTD·Filed 2001·Granted Jun 4, 2002·10 cites·4 claims
- 1780US4523829AAutomatic focus detecting deviceFUJI PHOTO OPTICAL CO LTD·Filed 1984·Granted Jun 18, 1985·47 cites·12 claims
- 1879US8146254B2Hair clipperMORISUGI KAZUHIRO·Filed 2007·Granted Apr 3, 2012·18 cites·9 claims
- 1978US7430085B2Disk device and method of generating signal representing headHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Sep 30, 2008·2 cites·2 claims
- 2077US8959775B2Nose hair trimmerYABUUCHI SEIKO·Filed 2011·Granted Feb 24, 2015·12 cites·7 claims
- 2177US7100286B2Hair trimmer with trim length adjustment mechanismMATSUSHITA ELECTRIC WORKS LTD·Filed 2004·Granted Sep 5, 2006·35 cites·4 claims
- 2276US6236528B1Method and apparatus for recording and reproducing disk-type recording medium with dual head including reading head and writing head having offset coresHITACHI LTD·Filed 2000·Granted May 22, 2001·8 cites·2 claims
- 2374US8091241B2Electric hair removerOUCHI KAZUYUKI·Filed 2008·Granted Jan 10, 2012·11 cites·8 claims
- 2474US7612960B2Method for formatting data sectors on magnetic disk, and magnetic disk driveHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Nov 3, 2009·2 cites·16 claims
- 2572US4437821AShaft seal for pump meansMITSUBISHI ELECTRIC CORP·Filed 1981·Granted Mar 20, 1984·24 cites·3 claims
- 2672US2025381687A1Cutting devicePANASONIC IP MAN CO LTD·Filed 2025·Application pending·0 cites
- 2770US7921566B2Hair trimmerPANASONIC ELEC WORKS CO LTD·Filed 2004·Granted Apr 12, 2011·19 cites·21 claims
- 2869US7874073B2Nose hair cutterPANASONIC ELEC WORKS CO LTD·Filed 2006·Granted Jan 25, 2011·5 cites·4 claims
- 2968US4491094AVacuum pump-radiator fan drive systemMITSUBISHI ELECTRIC CORP·Filed 1982·Granted Jan 1, 1985·13 cites·1 claims
- 3065US5699616AElectric hair trimmerMATSUSHITA ELECTRIC WORKS LTD·Filed 1996·Granted Dec 23, 1997·37 cites·13 claims
- 3165US4517466AVacuum pumpMITSUBISHI ELECTRIC CORP·Filed 1982·Granted May 14, 1985·11 cites·2 claims
- 3263US7073037B2System for controlling host access to a storage device based on physical characteristics of the storage deviceHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Jul 4, 2006·9 cites·5 claims
- 3362US10150224B2Electric hair clipperPANASONIC CORP·Filed 2013·Granted Dec 11, 2018·1 cites·8 claims
- 3462US2025001630A1Cutting devicePANASONIC IP MAN CO LTD·Filed 2024·Application pending·0 cites
- 3562US2025001631A1Cutting devicePANASONIC IP MAN CO LTD·Filed 2024·Application pending·0 cites
- 3662US2025001629A1Cutting devicePANASONIC IP MAN CO LTD·Filed 2024·Application pending·0 cites
- 3761US7367127B2Hair trimmer with rattle dampening structureMATSUSHITA ELECTRIC WORKS LTD·Filed 2004·Granted May 6, 2008·14 cites·7 claims
- 3861US3948431AManufacturing method of metallic honeycomb structuresTOYOTA MOTOR CO LTD·Filed 1974·Granted Apr 6, 1976·15 cites·9 claims
- 3961US2024416539A1Hair clipper and motor block used in hair clipperPANASONIC IP MAN CO LTD·Filed 2024·Application pending·0 cites
- 4060US6954876B2Disk apparatusHITACHI GLOBAL STORAGE TECH·Filed 2001·Granted Oct 11, 2005·4 cites·5 claims
- 4160US4666378ADiaphragm type pump device having a cushion memberMITSUBISHI ELECTRIC CORP·Filed 1986·Granted May 19, 1987·17 cites·4 claims
- 4259USRE39253EApparatus and method for error correctionHITACHI LTD·Filed 2000·Granted Aug 29, 2006·3 cites·21 claims
- 4359US6563656B2Disk device and method of generating signal representing headHITACHI LTD·Filed 2002·Granted May 13, 2003·2 cites·12 claims
- 4459US6172828B1Signal processing apparatus and a disk control apparatus, with head positioning control based on digitized servo dataHITACHI LTD·Filed 1997·Granted Jan 9, 2001·9 cites·12 claims
- 4558US6045559AEpilating device for removal of body hairsMATSUSHITA ELECTRIC WORKS LTD·Filed 1999·Granted Apr 4, 2000·21 cites·18 claims
- 4657US6219909B1Method of mounting disk drive apparatusHITACHI LTD·Filed 1994·Granted Apr 24, 2001·15 cites·21 claims
- 4757US2009158596A1Electric hair removerPANASONIC ELEC WORKS CO LTD·Filed 2008·Application pending·0 cites
- 4855US5501629ABuffing apparatus suitable to buff thin plate work and controlling method for the apparatusFUJITSU LTD·Filed 1993·Granted Mar 26, 1996·16 cites·10 claims
- 4954US4589829AVane pumpMITSUBISHI ELECTRIC CORP·Filed 1984·Granted May 20, 1986·7 cites·3 claims
- 5053US2024197454A1Electric toothbrushPANASONIC IP MAN CO LTD·Filed 2022·Application pending·0 cites
Showing the top 50 of 74 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →