Inventor
UNAMI SHIGERU
JP28 patents
⚠️ This page may combine multiple inventors who share the name “UNAMI SHIGERU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JFE STEEL CORP
17 patentsUS6827757B2Dec 7, 2004
Magnetite-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 absorber
JFE STEEL CORP24 citations92
US6696014B2Feb 24, 2004
Iron-based sintered powder metal body, manufacturing method thereof and manufacturing method of iron-based sintered component with high strength and high density
JFE STEEL CORP20 citations90
US7384446B2Jun 10, 2008
Mixed powder for powder metallurgy
JFE STEEL CORP9 citations84
US7867314B2Jan 11, 2011
Iron-based powder for powder metallurgy
JFE STEEL CORP7 citations83
US6758882B2Jul 6, 2004
Alloyed steel powder for powder metallurgy
JFE STEEL CORP13 citations83
US10265766B2Apr 23, 2019
Alloy steel powder for powder metallurgy and method of producing iron-based sintered body
JFE STEEL CORP7 citations82
US6860918B2Mar 1, 2005
Powder additive for powder metallurgy, iron-based powder mixture for powder metallurgy, and method for manufacturing the same
JFE STEEL CORP10 citations74
US12272491B2Apr 8, 2025
Iron-based powder for dust cores and dust core
JFE STEEL CORP0 citations62
US7347884B2Mar 25, 2008
Alloy steel powder for powder metallurgy
JFE STEEL CORP5 citations62
US12291765B2May 6, 2025
Alloyed steel powder for powder metallurgy, iron-based mixed powder for powder metallurgy, and sintered body
JFE STEEL CORP0 citations58
US11351603B2Jun 7, 2022
Mixed powder for powder metallurgy and lubricant for powder metallurgy
JFE STEEL CORP0 citations56
US11795532B2Oct 24, 2023
Production method for water-atomized metal powder
JFE STEEL CORP0 citations51
US12187976B2Jan 7, 2025
Mixed powder for powder metallurgy
JFE STEEL CORP0 citations46
US11643710B2May 9, 2023
Mixed powder for powder metallurgy
JFE STEEL CORP0 citations45
US11946119B2Apr 2, 2024
Powder mixture for powder metallurgy and method for producing powder mixture for powder metallurgy
JFE STEEL CORP0 citations43
US11224914B2Jan 18, 2022
Powder mixture for powder metallurgy and method of manufacturing same
JFE STEEL CORP0 citations43
US10632532B2Apr 28, 2020
Mixed powder for powder metallurgy
JFE STEEL CORP0 citations42
KAWASAKI STEEL CO
8 patentsUS5666634ASep 9, 1997
Alloy steel powders for sintered bodies having high strength, high fatigue strength and high toughness, sintered bodies, and method for manufacturing such sintered bodies
KAWASAKI STEEL CO19 citations92
US5605559AFeb 25, 1997
Alloy steel powders, sintered bodies and method
KAWASAKI STEEL CO19 citations92
US6355208B1Mar 12, 2002
Die lubricant and iron-based powder mixture for warm compaction with die lubrication, and processes for producing high-density iron-based green and sintered compacts
KAWASAKI STEEL CO17 citations84
US6652618B1Nov 25, 2003
Iron based mixed power high strength sintered parts
KAWASAKI STEEL CO7 citations74
US6610120B2Aug 26, 2003
Alloyed steel powder for powder metallurgy
KAWASAKI STEEL CO8 citations73
US6514307B2Feb 4, 2003
Iron-based sintered powder metal body, manufacturing method thereof and manufacturing method of iron-based sintered component with high strength and high density
KAWASAKI STEEL CO10 citations71
US6861028B2Mar 1, 2005
Lubricants for die lubrication and manufacturing method for high density iron-based powder compacts
KAWASAKI STEEL CO2 citations63
US6905530B2Jun 14, 2005
Metallic powder-molded body, re-compacted body of the molded body, sintered body produced from the re-compacted body, and processes for production thereof
KAWASAKI STEEL CO2 citations61