Inventor · disambiguated record
Hiroyuki Nakagawa
Also filed as: NAKAGAWA HIROYUKI
88 granted patents·21 pending applications·637 citations·filing 1980–2024
99Inventor score
Files withCANON KK13TOYODA GOSEI KK11HITACHI GLOBAL STORAGE TECH10MITSUBISHI ELECTRIC CORP8HITACHI LTD6
Top patents by PatentIndex Score
109 records- 0194US9944479B2Sheet feeding apparatus and image forming apparatusCANON KK·Filed 2017·Granted Apr 17, 2018·6 cites·23 claims
- 0293US11643292B2Sheet feeding deviceCANON KK·Filed 2021·Granted May 9, 2023·3 cites·9 claims
- 0393US7368185B2Perpendicular magnetic recording media and magnetic storage apparatus using the sameHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted May 6, 2008·35 cites·12 claims
- 0491US8236893B2Polylactic acid based resin molded articlesNAKAGAWA HIROYUKI·Filed 2007·Granted Aug 7, 2012·18 cites·5 claims
- 0591US7892663B2Perpendicular magnetic recording media and magnetic storage apparatus using the sameHITACHI GLOBAL STORAGE TECH NL·Filed 2008·Granted Feb 22, 2011·16 cites·19 claims
- 0689US10053312B2Sheet feeding apparatus and an image forming apparatusCANON KK·Filed 2017·Granted Aug 21, 2018·4 cites·13 claims
- 0787US11484280B2Radiographic image capturing systemKONICA MINOLTA INC·Filed 2020·Granted Nov 1, 2022·2 cites·11 claims
- 0887US6586117B2Steel sheet having excellent workability and shape accuracy and a method for its manufactureSUMITOMO METAL IND·Filed 2001·Granted Jul 1, 2003·26 cites·28 claims
- 0986US8183309B2Puncture sealantICHIKAWA NAOYA·Filed 2010·Granted May 22, 2012·6 cites·16 claims
- 1085US10775730B2Sheet feeding apparatus and image forming apparatusCANON KK·Filed 2018·Granted Sep 15, 2020·2 cites·10 claims
- 1185US6575215B1Studless tire including tread comprising short fibersSUMITOMO RUBBER IND·Filed 2000·Granted Jun 10, 2003·22 cites·11 claims
- 1284US8390956B2Perpendicular magnetic recording medium having FCC seed layersTONOOKA SHUN·Filed 2010·Granted Mar 5, 2013·10 cites·20 claims
- 1384US6982012B2Method of manufacturing steel sheet having excellent workability and shape accuracySUMITOMO METAL IND·Filed 2003·Granted Jan 3, 2006·22 cites·11 claims
- 1483US10975771B2Gas turbine combined cycle plant and method for controlling gas turbine combined cycle plantMITSUBISHI HITACHI POWER SYS·Filed 2018·Granted Apr 13, 2021·3 cites·6 claims
- 1583US9962469B2Adhesion-preventing preparation comprising composition comprising polycationic triblock copolymer and polyanionic polymerUNIV TSUKUBA·Filed 2015·Granted May 8, 2018·2 cites·1 claims
- 1683US8402731B2Elevator ropeNAITO SHINYA·Filed 2009·Granted Mar 26, 2013·8 cites·15 claims
- 1782US11371479B2Fueling deviceHONDA MOTOR CO LTD·Filed 2019·Granted Jun 28, 2022·3 cites·11 claims
- 1882US8232282B2Compound having bicyclic pyrimidine structure and pharmaceutical composition comprising the sameNAKAMURA KEIJI·Filed 2007·Granted Jul 31, 2012·10 cites·16 claims
- 1982US7033686B2Perpendicular magnetic recording medium and method of manufacturing itHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Apr 25, 2006·14 cites·5 claims
- 2082US6773826B2Perpendicular magnetic recording media and magnetic storage apparatus using the sameHITACHI LTD·Filed 2002·Granted Aug 10, 2004·24 cites·12 claims
- 2181US8057270B2Contact deviceSHIMAZU HIDEAKI·Filed 2008·Granted Nov 15, 2011·13 cites·8 claims
- 2280US7618722B2Perpendicular magnetic recording media and magnetic storage apparatus using the sameHITACHI GLOBAL STORAGE TECH·Filed 2008·Granted Nov 17, 2009·3 cites·19 claims
- 2380US6916557B2Perpendicular magnetic recording mediaHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Jul 12, 2005·12 cites·8 claims
- 2480US5178699APneumatic tireSUMITOMO RUBBER IND·Filed 1990·Granted Jan 12, 1993·39 cites·6 claims
- 2578US12481241B2Image forming systemCANON KK·Filed 2024·Granted Nov 25, 2025·0 cites·10 claims
- 2678US10881370B2Radiographic image capturing systemKONICA MINOLTA INC·Filed 2018·Granted Jan 5, 2021·2 cites·4 claims
- 2778US5866631ADental primer composition and polymerization catalystTOKUYAMA CORP·Filed 1996·Granted Feb 2, 1999·51 cites·19 claims
- 2875US10393757B2Diagnostic drug and diagnostic method for Alzheimer's diseaseHASHIMOTO MASAKAZU·Filed 2011·Granted Aug 27, 2019·4 cites·2 claims
- 2975US7544313B2Cap for fuel tank comprising electrically conductive resin composition of a polyamide typeTOYO BOSEKI·Filed 2005·Granted Jun 9, 2009·2 cites·4 claims
- 3074US8614862B1Perpendicular magnetic recording media having a cap layer above a granular layerHGST Netherlands BV·Filed 2012·Granted Dec 24, 2013·3 cites·20 claims
- 3171US10676839B2Electrodeposition system and electrodeposition methodMAZDA MOTOR·Filed 2016·Granted Jun 9, 2020·1 cites·5 claims
- 3271US7999202B2ContactMITSUBISHI ELECTRIC CORP·Filed 2008·Granted Aug 16, 2011·11 cites·11 claims
- 3371US5309963APneumatic tireSUMITOMO RUBBER IND·Filed 1990·Granted May 10, 1994·29 cites·4 claims
- 3470US8298688B2Magnetic recording medium using layers having higher- and lower-HK anisotropic magnetic fieldsNEMOTO HIROAKI·Filed 2010·Granted Oct 30, 2012·2 cites·24 claims
- 3570US7772173B2Rinsing composition, and method for rinsing and manufacturing silicon waferFUJIMI INC·Filed 2005·Granted Aug 10, 2010·1 cites·14 claims
- 3670US6187701B1Dental porcelainTOKUYAMA CORP·Filed 1999·Granted Feb 13, 2001·36 cites·16 claims
- 3768US6766244B2Uploading and managing vehicle position informationHITACHI LTD·Filed 2002·Granted Jul 20, 2004·30 cites·21 claims
- 3867US11125166B2Control system, gas turbine, power generation plant, and method of controlling fuel temperatureMITSUBISHI HITACHI POWER SYS LTD·Filed 2018·Granted Sep 21, 2021·1 cites·11 claims
- 3966US8048499B2Automotive exterior resin partTOYODA GOSEI KK·Filed 2008·Granted Nov 1, 2011·1 cites·9 claims
- 4064US8053505B2Fire retardant material and molded bodyTOYODA GOSEI KK·Filed 2009·Granted Nov 8, 2011·0 cites·9 claims
- 4164US7637357B2Elevator apparatus with sheave rotational speed difference determination for detecting an abnormalityMITSUBISHI ELECTRIC CORP·Filed 2004·Granted Dec 29, 2009·13 cites·7 claims
- 4264US6815083B2Perpendicular magnetic recording medium and process of production thereofHITACHI LTD·Filed 2002·Granted Nov 9, 2004·8 cites·16 claims
- 4363US8242196B2Puncture sealantISHIDA TAKAAKI·Filed 2010·Granted Aug 14, 2012·1 cites·13 claims
- 4462US9099140B2Thermal energy assisted mediumNEMOTO HIROAKI·Filed 2009·Granted Aug 4, 2015·0 cites·17 claims
- 4562US2025083915A1Sheet conveyance apparatus and image forming apparatusCANON KK·Filed 2024·Application pending·0 cites
- 4661US6102093APneumatic tire including long blocks and wide blocksSUMITOMO RUBBER IND·Filed 1998·Granted Aug 15, 2000·25 cites·13 claims
- 4760US11878887B2Sheet feeding apparatus and image forming apparatusCANON KK·Filed 2022·Granted Jan 23, 2024·0 cites·11 claims
- 4860US6555056B2Method of preserving silicone composition and kit of separate packagesTOKUYAMA CORP·Filed 2000·Granted Apr 29, 2003·3 cites·12 claims
- 4959US11536195B2Engine room structure for vehicleMAZDA MOTOR·Filed 2021·Granted Dec 27, 2022·0 cites·13 claims
- 5058US7235605B2Crystalline biodegradable resin compositionTOYODA GOSEI KK·Filed 2003·Granted Jun 26, 2007·3 cites·2 claims
Showing the top 50 of 109 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →