Inventor · disambiguated record
Shigeru Unami
Also filed as: UNAMI SHIGERU
28 granted patents·14 pending applications·185 citations·filing 1993–2023
96Inventor score
Files withJFE STEEL CORP26KAWASAKI STEEL CO8JFE STEEL CORP A CORP OF JAPAN3HITACHI UNISIA AUTOMOTIVE LTD1KAWANO TAKASHI1
Top patents by PatentIndex Score
42 records- 0191US7384446B2Mixed powder for powder metallurgyJFE STEEL CORP·Filed 2005·Granted Jun 10, 2008·9 cites·9 claims
- 0289US6827757B2Magnetite-iron based composite powder, magnetite-iron based powder mixture, method for producing the same, method for remedying polluted soil, water or gases and electromagnetic wave absorberJFE STEEL CORP·Filed 2002·Granted Dec 7, 2004·24 cites·14 claims
- 0387US10265766B2Alloy steel powder for powder metallurgy and method of producing iron-based sintered bodyJFE STEEL CORP·Filed 2014·Granted Apr 23, 2019·7 cites·3 claims
- 0486US6696014B2Iron-based sintered powder metal body, manufacturing method thereof and manufacturing method of iron-based sintered component with high strength and high densityJFE STEEL CORP·Filed 2002·Granted Feb 24, 2004·20 cites·16 claims
- 0582US7867314B2Iron-based powder for powder metallurgyJFE STEEL CORP·Filed 2008·Granted Jan 11, 2011·7 cites·12 claims
- 0678US6514307B2Iron-based sintered powder metal body, manufacturing method thereof and manufacturing method of iron-based sintered component with high strength and high densityKAWASAKI STEEL CO·Filed 2001·Granted Feb 4, 2003·10 cites·2 claims
- 0777US6355208B1Die lubricant and iron-based powder mixture for warm compaction with die lubrication, and processes for producing high-density iron-based green and sintered compactsKAWASAKI STEEL CO·Filed 2000·Granted Mar 12, 2002·17 cites·23 claims
- 0876US6610120B2Alloyed steel powder for powder metallurgyKAWASAKI STEEL CO·Filed 2001·Granted Aug 26, 2003·8 cites·2 claims
- 0975US6758882B2Alloyed steel powder for powder metallurgyJFE STEEL CORP·Filed 2002·Granted Jul 6, 2004·13 cites·7 claims
- 1072US6860918B2Powder additive for powder metallurgy, iron-based powder mixture for powder metallurgy, and method for manufacturing the sameJFE STEEL CORP·Filed 2003·Granted Mar 1, 2005·10 cites·26 claims
- 1172US6652618B1Iron based mixed power high strength sintered partsKAWASAKI STEEL CO·Filed 2000·Granted Nov 25, 2003·7 cites·5 claims
- 1272US5666634AAlloy steel powders for sintered bodies having high strength, high fatigue strength and high toughness, sintered bodies, and method for manufacturing such sintered bodiesKAWASAKI STEEL CO·Filed 1993·Granted Sep 9, 1997·19 cites·30 claims
- 1371US8603212B2Iron-based mixed powder for powder metallurgyKAWANO TAKASHI·Filed 2010·Granted Dec 10, 2013·1 cites·9 claims
- 1467US7347884B2Alloy steel powder for powder metallurgyJFE STEEL CORP·Filed 2004·Granted Mar 25, 2008·5 cites·26 claims
- 1567US5605559AAlloy steel powders, sintered bodies and methodKAWASAKI STEEL CO·Filed 1995·Granted Feb 25, 1997·19 cites·48 claims
- 1665US11351603B2Mixed powder for powder metallurgy and lubricant for powder metallurgyJFE STEEL CORP·Filed 2019·Granted Jun 7, 2022·0 cites·19 claims
- 1764US12272491B2Iron-based powder for dust cores and dust coreJFE STEEL CORP·Filed 2020·Granted Apr 8, 2025·0 cites·13 claims
- 1864US8747516B2Iron-based powder for powder metallurgyONO TOMOSHIGE·Filed 2007·Granted Jun 10, 2014·2 cites·8 claims
- 1962US2025312768A1Iron-based powder for oxygen reactant and oxygen reactantJFE STEEL CORP·Filed 2023·Application pending·0 cites
- 2061US2025312844A1Iron-based powder for oxygen reactant and oxygen reactantJFE STEEL CORP·Filed 2023·Application pending·0 cites
- 2160US12291765B2Alloyed steel powder for powder metallurgy, iron-based mixed powder for powder metallurgy, and sintered bodyJFE STEEL CORP·Filed 2020·Granted May 6, 2025·0 cites·4 claims
- 2260US11795532B2Production method for water-atomized metal powderJFE STEEL CORP·Filed 2019·Granted Oct 24, 2023·0 cites·8 claims
- 2359US2025033114A1Iron-based mixed powder for powder metallurgy and iron-based sintered bodyJFE STEEL CORP·Filed 2022·Application pending·0 cites
- 2457US2024001441A1Method for producing water-atomized metal powderJFE STEEL CORP·Filed 2021·Application pending·0 cites
- 2556US2023290552A1Iron-based powder for dust core, dust core, and method of manufacturing dust coreJFE STEEL CORP·Filed 2021·Application pending·0 cites
- 2656US2024342792A1Iron-based soft magnetic powder, magnetic component using same and dust coreJFE STEEL CORP·Filed 2022·Application pending·0 cites
- 2756US2011176950A1Method for producing sintered compact by powder metallurgyJFE STEEL CORP·Filed 2009·Application pending·0 cites
- 2855US6503443B1Metallic powder molding material and its re-compression molded body and sintered body obtained from the re-compression molded body and production methods thereofUNISIA JECS CORP·Filed 2000·Granted Jan 7, 2003·3 cites·18 claims
- 2954US10632532B2Mixed powder for powder metallurgyJFE STEEL CORP·Filed 2016·Granted Apr 28, 2020·0 cites·1 claims
- 3053US6861028B2Lubricants for die lubrication and manufacturing method for high density iron-based powder compactsKAWASAKI STEEL CO·Filed 2001·Granted Mar 1, 2005·2 cites·30 claims
- 3152US6905530B2Metallic powder-molded body, re-compacted body of the molded body, sintered body produced from the re-compacted body, and processes for production thereofKAWASAKI STEEL CO·Filed 2002·Granted Jun 14, 2005·2 cites·21 claims
- 3250US11643710B2Mixed powder for powder metallurgyJFE STEEL CORP·Filed 2018·Granted May 9, 2023·0 cites·8 claims
- 3350US2016214171A1Alloy steel powder for powder metallurgy and method of producing iron-based sintered bodyJFE STEEL CORP·Filed 2014·Application pending·0 cites
- 3448US11946119B2Powder mixture for powder metallurgy and method for producing powder mixture for powder metallurgyJFE STEEL CORP·Filed 2019·Granted Apr 2, 2024·0 cites·4 claims
- 3548US11224914B2Powder mixture for powder metallurgy and method of manufacturing sameJFE STEEL CORP·Filed 2018·Granted Jan 18, 2022·0 cites·9 claims
- 3648US2022331860A1Alloyed steel powder for powder metallurgy, iron-based mixed powder for powder metallurgy, and sintered bodyJFE STEEL CORP·Filed 2020·Application pending·0 cites
- 3746US2009041608A1Iron-based powder mixture, and method of manufacturing iron-based compacted body and iron-based sintered bodyJFE STEEL CORP A CORP OF JAPAN·Filed 2007·Application pending·0 cites
- 3845US12187976B2Mixed powder for powder metallurgyJFE STEEL CORP·Filed 2020·Granted Jan 7, 2025·0 cites·14 claims
- 3944US2003219617A1Powder additive for powder metallurgy, iron-based powder mixture for powder metallurgy, and method for manufacturing the sameJFE STEEL CORP A CORP OF JAPAN·Filed 2003·Application pending·0 cites
- 4043US2004226404A1Magnetite-iron based composite powder, magnetite-iron based powder mixture, method for producing the same, method for remedying polluted soil, water or gases and electromagnetic wave absorberJFE STEEL CORP A CORP OF JAPAN·Filed 2004·Application pending·0 cites
- 4141US2004144203A1Sintered body and production method thereofNISSAN MOTOR CO LTD AND·Filed 2004·Application pending·0 cites
- 4239US2003215349A1Production method of high density iron based forged partHITACHI UNISIA AUTOMOTIVE LTD·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →