Inventor · disambiguated record
Chihiro Hayashi
Also filed as: HAYASHI CHIHIRO
50 granted patents·3 pending applications·1,598 citations·filing 1976–2021
98Inventor score
Top patents by PatentIndex Score
53 records- 0197US4470282AMethod of piercing in seamless tube manufacturingSUMITOMO METAL IND·Filed 1982·Granted Sep 11, 1984·36 cites·11 claims
- 0295US7293443B2Method for manufacturing seamless pipes or tubesSUMITOMO METAL IND·Filed 2006·Granted Nov 13, 2007·9 cites·8 claims
- 0395US7146836B2Piercing method for manufacturing of seamless pipeSUMITOMO METAL IND·Filed 2006·Granted Dec 12, 2006·11 cites·4 claims
- 0495US6067502ADevice for displaying mapAISIN AW CO·Filed 1997·Granted May 23, 2000·420 cites·43 claims
- 0595US5533370ATube rolling method and apparatusSUMITOMO METAL IND·Filed 1993·Granted Jul 9, 1996·43 cites·28 claims
- 0693US5944768ANavigation systemAISIN AW CO·Filed 1996·Granted Aug 31, 1999·314 cites·7 claims
- 0792US10232418B2Method for producing seamless metal pipeNIPPON STEEL & SUMITOMO METAL CORP·Filed 2015·Granted Mar 19, 2019·2 cites·5 claims
- 0892US5080727AMetallic material having ultra-fine grain structure and method for its manufactureSUMITOMO METAL IND·Filed 1989·Granted Jan 14, 1992·104 cites·30 claims
- 0989US7788959B2Method of producing ultra thin wall metallic tube by cold drawing processSUMITOMO METAL IND·Filed 2008·Granted Sep 7, 2010·6 cites·1 claims
- 1088US7992417B2Method for producing ultra thin wall metallic tube by cold rolling methodSUMITOMO METAL IND·Filed 2008·Granted Aug 9, 2011·6 cites·2 claims
- 1188US5625229AHeat sink fin assembly for cooling an LSI packageSUMITOMO METAL IND·Filed 1995·Granted Apr 29, 1997·105 cites·32 claims
- 1288US4416134AProcess for manufacturing seamless metal tubesSUMITOMO METAL IND·Filed 1981·Granted Nov 22, 1983·21 cites·14 claims
- 1387US7980710B2Retroreflective articleNIPPON CARBIDE KOGYO KK·Filed 2008·Granted Jul 19, 2011·17 cites·20 claims
- 1487US5726495AHeat sink having good heat dissipating characteristicsSUMITOMO METAL IND·Filed 1993·Granted Mar 10, 1998·90 cites·23 claims
- 1587US5501091AMethod and apparatus for elongating metal tubes by means of a mandrel millSUMITOMO METAL IND·Filed 1993·Granted Mar 26, 1996·24 cites·18 claims
- 1683US7895870B2Method for producing ultra thin wall metallic tube with cold working processSUMITOMO METAL IND·Filed 2007·Granted Mar 1, 2011·4 cites·3 claims
- 1782US4078631AApparatus for controlling acceleration and deceleration of motor vehiclesTOYOTA MOTOR CO LTD·Filed 1976·Granted Mar 14, 1978·50 cites·11 claims
- 1880US4827750AMethod of piercing and manufacturing seamless tubesSUMITOMO METAL IND·Filed 1988·Granted May 9, 1989·17 cites·6 claims
- 1979US5636542APiercing-rolling method and piercing/rolling apparatus for seamless steel tubeSUMITOMO METAL IND·Filed 1995·Granted Jun 10, 1997·16 cites·9 claims
- 2079US4420961AMethod for producing beam blank for universal beamSUMITOMO METAL IND·Filed 1982·Granted Dec 20, 1983·16 cites·4 claims
- 2178US8245553B2Method of producing ultrathin-wall seamless metal tube using floating plugHAYASHI CHIHIRO·Filed 2011·Granted Aug 21, 2012·2 cites·4 claims
- 2275US4852736AMetal case for housing an IC and a manufacturing method thereforSUMITOMO METAL IND·Filed 1988·Granted Aug 1, 1989·29 cites·17 claims
- 2373US8141405B2Method for producing ultra thin wall metallic tube with cold working processHAYASHI CHIHIRO·Filed 2008·Granted Mar 27, 2012·2 cites·3 claims
- 2473US5455382AIC package heat sink finSUMITOMO METAL IND·Filed 1994·Granted Oct 3, 1995·46 cites·18 claims
- 2572US5369301APin-finned forged heat sinkSUMITOMO METAL IND·Filed 1993·Granted Nov 29, 1994·55 cites·6 claims
- 2671US4510787AMethod of manufacturing hollow rodsSUMITOMO METAL IND·Filed 1983·Granted Apr 16, 1985·12 cites·12 claims
- 2770US8388154B2Cube-corner retroreflective articleMIMURA IKUO·Filed 2008·Granted Mar 5, 2013·5 cites·11 claims
- 2865US5152047AMethod of producing laminated metal beltSUMITOMO METAL IND·Filed 1990·Granted Oct 6, 1992·21 cites·40 claims
- 2963USRE44308EMethod for manufacturing seamless pipes or tubesHAYASHI CHIHIRO·Filed 2008·Granted Jun 25, 2013·1 cites·8 claims
- 3063US8459806B2Triangular pyramid type cube corner retroreflection article, and its manufacturing methodMIMURA IKUO·Filed 2007·Granted Jun 11, 2013·3 cites·44 claims
- 3162US5519938AProcess for producing a heat sink finSUMITOMO METAL IND·Filed 1994·Granted May 28, 1996·31 cites·3 claims
- 3260US8511839B2Retroreflective articleMIMURA IKUO·Filed 2009·Granted Aug 20, 2013·2 cites·20 claims
- 3360US4597278AMethod for producing I-beam having centrally corrugated webSUMITOMO METAL IND·Filed 1985·Granted Jul 1, 1986·24 cites·1 claims
- 3458US12324105B2Maleimide resin composition, prepreg, resin film, laminated board, printed wiring board, and semiconductor packageRESONAC CORP·Filed 2021·Granted Jun 3, 2025·0 cites·15 claims
- 3558US10302954B2Image display deviceNIPPON CARBIDE KOGYO KK·Filed 2016·Granted May 28, 2019·1 cites·16 claims
- 3657US8728360B2Apparatus and method for producing optical sheetingMIMURA IKUO·Filed 2009·Granted May 20, 2014·3 cites·21 claims
- 3752US12168709B2Thermosetting resin composition, prepreg, laminate, metal-clad laminate, printed wiring board, and high-speed communication compatible moduleRESONAC CORP·Filed 2021·Granted Dec 17, 2024·0 cites·20 claims
- 3852US12024624B2Maleimide resin composition, prepreg, laminated board, resin film, printed wiring board, and semiconductor packageRESONAC CORP·Filed 2021·Granted Jul 2, 2024·0 cites·13 claims
- 3949US4512177AMethod of manufacturing metallic materials having a circular cross sectionSUMITOMO METAL IND·Filed 1983·Granted Apr 23, 1985·10 cites·14 claims
- 4047US8528378B2Method for producing ultrathin-wall seamless metal tube by cold rolling methodHAYASHI CHIHIRO·Filed 2011·Granted Sep 10, 2013·0 cites·5 claims
- 4145US5794607AProcess for producing heat sink having good heat dissipating characteristicsSUMITOMO METAL IND·Filed 1994·Granted Aug 18, 1998·13 cites·12 claims
- 4245US2023391940A1Maleimide resin composition, prepreg, laminate, resin film, printed wiring board, and semiconductor packageRESONAC CORP·Filed 2021·Application pending·0 cites
- 4343US5004143AMethod of manufacturing clad barSUMITOMO METAL IND·Filed 1987·Granted Apr 2, 1991·8 cites·30 claims
- 4443US2017252963A1Optical sheet manufacturing device and manufacturing methodNIPPON CARBIDE KOGYO KK·Filed 2015·Application pending·0 cites
- 4542US10330943B2Image display deviceNIPPON CARBIDE KOGYO KK·Filed 2016·Granted Jun 25, 2019·0 cites·11 claims
- 4642US4669293AContinuous rolling method and continuous rolling millSUMITOMO METAL IND·Filed 1985·Granted Jun 2, 1987·5 cites·3 claims
- 4741US2011271731A1Method for producing seamless metallic tube by cold rollingSUMITOMO METAL IND·Filed 2011·Application pending·0 cites
- 4840US8663021B2Torque fluctuation absorberSAEKI TOMOHIRO·Filed 2012·Granted Mar 4, 2014·0 cites·20 claims
- 4939US4901553AMethod of manufacturing a finned tubeSUMITOMO METAL IND·Filed 1988·Granted Feb 20, 1990·5 cites·13 claims
- 5036US4225662ADiazo copying materialRICOH KK·Filed 1979·Granted Sep 30, 1980·1 cites·5 claims
Showing the top 50 of 53 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →