Inventor · disambiguated record
Masayuki Hashimura
Also filed as: HASHIMURA MASAYUKI
28 granted patents·14 pending applications·193 citations·filing 1990–2017
95Inventor score
Files withNIPPON STEEL CORP12NIPPON STEEL & SUMITOMO METAL CORP11HASHIMURA MASAYUKI10MIYANISHI KEI3MIZUNO ATSUSHI2
Top patents by PatentIndex Score
42 records- 0189US8802005B2Steel for surface hardening for machine structural use and part for machine structural useMIZUNO ATSUSHI·Filed 2010·Granted Aug 12, 2014·5 cites·3 claims
- 0288US6406565B1High toughness spring steelNIPPON STEEL CORP·Filed 2000·Granted Jun 18, 2002·33 cites·13 claims
- 0388US6338763B1Steel wire for high-strength springs and method of producing the sameNIPPON STEEL CORP·Filed 1999·Granted Jan 15, 2002·48 cites·6 claims
- 0481US8673094B2Case hardening steel and manufacturing method thereofHASHIMURA MASAYUKI·Filed 2011·Granted Mar 18, 2014·2 cites·13 claims
- 0580US8980022B2Case hardening steel, carburized component, and manufacturing method of case hardening steelMIYANISHI KEI·Filed 2010·Granted Mar 17, 2015·3 cites·3 claims
- 0680US8876988B2Steel for nitriding and nitrided partCHIDA TETSUSHI·Filed 2011·Granted Nov 4, 2014·3 cites·14 claims
- 0778US9156231B2Steel for machine structure use for surface hardening and steel part for machine structure useNIPPON STEEL & SUMITOMO METAL CORP·Filed 2013·Granted Oct 13, 2015·1 cites·6 claims
- 0878US5897717AHigh strength spring steel and process for producing sameNIPPON STEEL CORP·Filed 1998·Granted Apr 27, 1999·25 cites·6 claims
- 0976US8845825B2High strength spring-use heat treated steelHASHIMURA MASAYUKI·Filed 2007·Granted Sep 30, 2014·3 cites·7 claims
- 1075US9732407B2Bearing steel and method for producing sameNIPPON STEEL & SUMITOMO METAL CORP·Filed 2012·Granted Aug 15, 2017·1 cites·17 claims
- 1175US7789974B2High-strength spring steel wireNIPPON STEEL CORP·Filed 2001·Granted Sep 7, 2010·10 cites·1 claims
- 1271US8137484B2Method of production of steel superior in machinabilityHASHIMURA MASAYUKI·Filed 2008·Granted Mar 20, 2012·1 cites·4 claims
- 1368US5123934ACeramics coated cemented-carbide tool with high-fracture resistanceNIPPON STEEL CORP·Filed 1990·Granted Jun 23, 1992·34 cites·5 claims
- 1466US9777343B2Steel for surface hardening for machine structural use and part for machine structural useNIPPON STEEL & SUMITOMO METAL CORP·Filed 2014·Granted Oct 3, 2017·0 cites·1 claims
- 1566US9657379B2Forging steelSAITOH HAJIME·Filed 2008·Granted May 23, 2017·1 cites·2 claims
- 1666US9487848B2Hot forging use non-heat-treated steel and hot forged non-heat-treated steel partNIPPON STEEL & SUMITOMO METAL CORP·Filed 2016·Granted Nov 8, 2016·0 cites·2 claims
- 1766US6858101B1Steel excellent in forgeability and machinabilityNIPPON STEEL CORP·Filed 2000·Granted Feb 22, 2005·7 cites·21 claims
- 1863US7575646B2Heat-treated steel wire for high strength springNIPPON STEEL CORP·Filed 2002·Granted Aug 18, 2009·5 cites·2 claims
- 1959US9896749B2Steel for induction hardening with excellent fatigue propertiesNIPPON STEEL & SUMITOMO METAL CORP·Filed 2013·Granted Feb 20, 2018·0 cites·3 claims
- 2059US9376738B2Hot forging use non-heat-treated steel and hot forged non-heat-treated steel partTERAMOTO SHINYA·Filed 2008·Granted Jun 28, 2016·0 cites·3 claims
- 2159US7488396B2Superior in machinability and method of production of sameNIPPON STEEL CORP·Filed 2003·Granted Feb 10, 2009·2 cites·2 claims
- 2259US2011041959A1Steel for machine structure use for surface hardening and steel part for machine structure useMIZUNO ATSUSHI·Filed 2009·Application pending·0 cites
- 2358US2009020195A1High Strength Spring Steel Wire and High Strength Spring and Methods of Production of the SameNIPPON STEEL CORP·Filed 2008·Application pending·0 cites
- 2457US9809875B2Case hardening steel with excellent fatigue propertiesNIPPON STEEL & SUMITOMO METAL CORP·Filed 2013·Granted Nov 7, 2017·0 cites·3 claims
- 2557US2011310924A1High strength spring steel wire and high strength spring and methods of production of the sameKUBOTA MANABU·Filed 2011·Application pending·0 cites
- 2656US2012018063A1Case-hardened steel superiorin cold workability, machinability, and fatigue characteristics after carburized quenching and method of production of sameHASHIMURA MASAYUKI·Filed 2009·Application pending·0 cites
- 2755US2010124515A1Machine structural steel excellent in machinability and strength propertiesNIPPON STEEL CORP·Filed 2010·Application pending·0 cites
- 2855US2009274573A1Machine Structural Steel Excellent in Machinability and Strength PropertiesMIYANISHI KEI·Filed 2007·Application pending·0 cites
- 2953US10350676B2Spring steel with excellent fatigue resistance and method of manufacturing the sameNIPPON STEEL & SUMITOMO METAL CORP·Filed 2013·Granted Jul 16, 2019·0 cites·4 claims
- 3052US9127336B2Hot-working steel excellent in machinability and impact valueMIYANISHI KEI·Filed 2008·Granted Sep 8, 2015·0 cites·10 claims
- 3150US2010054984A1Machining steel superior in manufacturabilityHASHIMURA MASAYUKI·Filed 2007·Application pending·0 cites
- 3247US10202665B2Spring steel and method for producing the sameNIPPON STEEL & SUMITOMO METAL CORP·Filed 2015·Granted Feb 12, 2019·0 cites·5 claims
- 3347US6419761B1Steels for cold forging and process for producing the sameNIPPON STEEL CORP·Filed 1999·Granted Jul 16, 2002·9 cites·6 claims
- 3447US2010028196A1High Strength Spring Steel and High Strength Heat Treated Steel Wire for SpringHASHIMURA MASAYUKI·Filed 2006·Application pending·0 cites
- 3546US2009205753A1High strength spring-use heat treated steelHASHIMURA MASAYUKI·Filed 2007·Application pending·0 cites
- 3641US10131973B2High strength spring steel and steel wireHASHIMURA MASAYUKI·Filed 2005·Granted Nov 20, 2018·0 cites·8 claims
- 3741US8734600B2High strength steel wire for springHASHIMURA MASAYUKI·Filed 2010·Granted May 27, 2014·0 cites·3 claims
- 3841US2019233927A1Steel for Machine Structural UseNIPPON STEEL & SUMITOMO METAL CORP·Filed 2017·Application pending·0 cites
- 3940US2011002807A1Steel for induction hardeningNIPPON STEEL CORP·Filed 2010·Application pending·0 cites
- 4039US2012291927A1Drawn heat treated steel wire for high strength spring use and pre-drawn steel wire for high strength spring useHASHIMURA MASAYUKI·Filed 2011·Application pending·0 cites
- 4137US2019169723A1Steel for Machine Structural UseNIPPON STEEL & SUMITOMO METAL CORP·Filed 2017·Application pending·0 cites
- 4237US2019271065A1Steel for Machine Structural UseNIPPON STEEL & SUMITOMO METAL CORP·Filed 2017·Application pending·0 cites
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