Inventor · disambiguated record
Kunio Kondo
Also filed as: KONDO KUNIO
69 granted patents·23 pending applications·990 citations·filing 1978–2022
99Inventor score
Top patents by PatentIndex Score
92 records- 0197US5938865AProcess for producing high-strength seamless steel pipe having excellent sulfide stress cracking resistanceSUMITOMO METAL IND·Filed 1996·Granted Aug 17, 1999·66 cites·7 claims
- 0296US7727463B2Steel pipe for an airbag systemSUMITOMO METAL IND·Filed 2005·Granted Jun 1, 2010·14 cites·12 claims
- 0396US6267828B1Low alloy steel for oil country tubular goods and method of makingSUMITOMO METAL IND·Filed 1999·Granted Jul 31, 2001·80 cites·8 claims
- 0495US9322087B2Stainless steel for oil well, stainless steel pipe for oil well, and method of manufacturing stainless steel for oil wellNIPPON STEEL & SUMITOMO METAL CORP·Filed 2015·Granted Apr 26, 2016·5 cites·4 claims
- 0593US6379821B2Martensitic stainless steel welded pipeSUMITOMO METAL IND·Filed 2001·Granted Apr 30, 2002·39 cites·14 claims
- 0692US5166041ANear infrared ray-decolorizable recording materialSHOWA DENKO KK·Filed 1991·Granted Nov 24, 1992·88 cites·9 claims
- 0791US11214749B2Lubricating oil composition and method of producing the sameSHOWA DENKO KK·Filed 2018·Granted Jan 4, 2022·4 cites·19 claims
- 0891US6024808ASeamless steel pipe manufacturing method and equipmentSUMITOMO METAL IND·Filed 1997·Granted Feb 15, 2000·27 cites·5 claims
- 0989US7767039B2Martensitic stainless steelSUMITOMO METAL IND·Filed 2006·Granted Aug 3, 2010·7 cites·4 claims
- 1088US9783876B2Stainless steel for oil wells and stainless steel pipe for oil wellsNIPPON STEEL & SUMITOMO METAL CORP·Filed 2013·Granted Oct 10, 2017·5 cites·15 claims
- 1188US8608872B2High-strength stainless steel pipe excellent in sulfide stress cracking resistance and high-temperature carbonic-acid gas corrosion resistanceKONDO KUNIO·Filed 2011·Granted Dec 17, 2013·5 cites·4 claims
- 1288US7316143B2Seamless steel tubes and method for producing the sameSUMITOMO METAL IND·Filed 2005·Granted Jan 8, 2008·6 cites·8 claims
- 1388US6878219B2High strength steel pipe for an air bag and a process for its manufactureSUMITOMO METAL IND·Filed 2002·Granted Apr 12, 2005·21 cites·16 claims
- 1488US6479013B1Casting components made from a tool steelSUMITOMO METAL IND·Filed 2000·Granted Nov 12, 2002·29 cites·16 claims
- 1586US6845166B2Plane driving type electroacoustic transducerFOSTER ELECTRIC CO LTD·Filed 2001·Granted Jan 18, 2005·37 cites·4 claims
- 1686US4642005AHolder for rotary cutting toolsFUJI BELLOWS CO LTD·Filed 1984·Granted Feb 10, 1987·44 cites·16 claims
- 1785US7544536B2Metal oxide dispersion for dye-sensitized solar cells, photoactive electrode and dye-sensitized solar cellSHOWA DENKO KK·Filed 2006·Granted Jun 9, 2009·7 cites·3 claims
- 1885US6541364B2Bump forming method and bump forming apparatusHITACHI LTD·Filed 2001·Granted Apr 1, 2003·43 cites·9 claims
- 1984US4274774ATool-fitting deviceTOYOTA MOTOR CO LTD·Filed 1978·Granted Jun 23, 1981·36 cites·3 claims
- 2082US8696834B2Method for manufacturing seamless pipesKONDO KEIICHI·Filed 2011·Granted Apr 15, 2014·3 cites·2 claims
- 2182US6478898B1Method of producing tool steelsSUMITOMO METAL IND·Filed 2000·Granted Nov 12, 2002·17 cites·6 claims
- 2282US5616420ALaminate filmGUNZE KK·Filed 1994·Granted Apr 1, 1997·50 cites·4 claims
- 2381US7896984B2Method for manufacturing seamless steel pipe for line pipeSUMITOMO METAL IND·Filed 2008·Granted Mar 1, 2011·3 cites·3 claims
- 2481US6159311AMartensitic stainless steel pipe and method for manufacturing the sameSUMITOMO METAL IND·Filed 2000·Granted Dec 12, 2000·13 cites·10 claims
- 2581US4564321AEnd-milling cutter with drilling capabilityFUJI SEIKO LIMITED·Filed 1984·Granted Jan 14, 1986·45 cites·20 claims
- 2680US7225868B2Steel pipe for embedding-expanding, and method of embedding-expanding oil well steel pipeSUMITOMO METAL IND·Filed 2003·Granted Jun 5, 2007·11 cites·4 claims
- 2780US4365032AMonoester compound of 2,2-alkylidene bis(4,6-di-substituted phenol)ASAHI CHEMICAL IND·Filed 1981·Granted Dec 21, 1982·30 cites·42 claims
- 2878US5849111ADuplex stainless steelSUMITOMO METAL IND·Filed 1995·Granted Dec 15, 1998·31 cites·16 claims
- 2976US8852366B2Method for producing steel pipe with excellent expandabilityKONDO KUNIO·Filed 2011·Granted Oct 7, 2014·1 cites·1 claims
- 3076US7238434B2Welded structure having improved resistance to stress corrosion crackingSUMITOMO METAL IND·Filed 2006·Granted Jul 3, 2007·2 cites·16 claims
- 3176US5873960AMethod and facility for manufacturing seamless steel pipeSUMITOMO METAL IND·Filed 1997·Granted Feb 23, 1999·14 cites·12 claims
- 3275US7815755B2Seamless steel pipe and manufacturing method thereofSUMITOMO METAL IND·Filed 2008·Granted Oct 19, 2010·2 cites·4 claims
- 3375US7157788B2Metal oxide dispersion for dye-sensitized solar cells, photoactive electrode and dye-sensitized solar cellSHOWA DENKO KK·Filed 2002·Granted Jan 2, 2007·16 cites·23 claims
- 3475US6129999AHigh-strength welded steel structures having excellent corrosion resistanceSUMITOMO METAL IND·Filed 1996·Granted Oct 10, 2000·36 cites·4 claims
- 3575US4643623AHolder for rotary cutting toolsFUJI BELLOWS CO LTD·Filed 1984·Granted Feb 17, 1987·24 cites·28 claims
- 3674US8845830B2Method of manufacturing heavy-wall seamless steel pipeKONDO KUNIO·Filed 2012·Granted Sep 30, 2014·1 cites·17 claims
- 3773US5482808AElectrostatic image developerNEC CORP·Filed 1994·Granted Jan 9, 1996·19 cites·6 claims
- 3870US12049601B2Method for producing lubricating oil composition, and lubricating oil compositionRESONAC CORP·Filed 2020·Granted Jul 30, 2024·0 cites·12 claims
- 3970US9109268B2Stainless steel for oil well, stainless steel pipe for oil well, and method of manufacturing stainless steel for oil wellTAKABE HIDEKI·Filed 2011·Granted Aug 18, 2015·1 cites·8 claims
- 4070US7896985B2Seamless steel pipe for line pipe and a process for its manufactureSUMITOMO METAL IND·Filed 2008·Granted Mar 1, 2011·1 cites·6 claims
- 4169US11220652B2Method for inspecting lubricating oil composition and method for producing lubricating oil compositionSHOWA DENKO KK·Filed 2018·Granted Jan 11, 2022·0 cites·8 claims
- 4269US9175360B2Method for manufacturing seamless steel pipe for line pipe and seamless steel pipe for line pipeHITOSHIO KEISUKE·Filed 2012·Granted Nov 3, 2015·1 cites·4 claims
- 4369US5383983AMartensitic stainless steel suitable for use in oil wellsSUMITOMO METAL IND·Filed 1993·Granted Jan 24, 1995·19 cites·20 claims
- 4468US11407960B2Lubricating oil composition and method for producing sameSHOWA DENKO KK·Filed 2018·Granted Aug 9, 2022·0 cites·18 claims
- 4567US7458426B2Steel pipe for embedding-expanding, and method of embedding-expanding oil well steel pipeSUMITOMO METAL IND·Filed 2007·Granted Dec 2, 2008·1 cites·5 claims
- 4666US11932820B2Lubricating oil composition and method for producing lubricating oil compositionRESONAC CORP·Filed 2020·Granted Mar 19, 2024·0 cites·16 claims
- 4766US11795411B2Lubricating oil composition, method for producing same and vacuum apparatusSHOWA DENKO KK·Filed 2020·Granted Oct 24, 2023·0 cites·18 claims
- 4865US7662244B2Martensitic stainless steel and method for manufacturing sameSUMITOMO METAL IND·Filed 2003·Granted Feb 16, 2010·6 cites·18 claims
- 4964US2010065166A1Steel pipe with excellent expandability and method for producing the sameKONDO KUNIO·Filed 2009·Application pending·0 cites
- 5061US5715748ASqueegee for screen printing machineMINAMI ENGINEERING CO LTD·Filed 1996·Granted Feb 10, 1998·12 cites·3 claims
Showing the top 50 of 92 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →