Inventor
CHIBA MASAMICHI
JP10 patents
⚠️ This page may combine multiple inventors who share the name “CHIBA MASAMICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOBE STEEL LTD
9 patentsUS9835194B2Dec 5, 2017
Steel wire for bolt, bolt, and manufacturing processes therefor
KOBE STEEL LTD7 citations74
US7267729B2Sep 11, 2007
Soft magnetic low-carbon steel excellent in machinability and magnetic characteristic, method of manufacturing the same and method of manufacturing soft magnetic low-carbon part
KOBE STEEL LTD2 citations59
US10570478B2Feb 25, 2020
Steel for mechanical structure for cold working, and method for producing same
KOBE STEEL LTD0 citations50
US9914990B2Mar 13, 2018
Steel for mechanical structure for cold working, and method for manufacturing same
KOBE STEEL LTD1 citations50
US9890445B2Feb 13, 2018
Steel for mechanical structure for cold working, and method for manufacturing same
KOBE STEEL LTD1 citations50
US9845519B2Dec 19, 2017
Boron-added high strength steel for bolt and high strength bolt having excellent delayed fracture resistance
KOBE STEEL LTD1 citations49
US7540927B2Jun 2, 2009
Soft magnetic steels excellent in cold forgeability, machinability and magnetic properties, and soft magnetic steel parts excellent in magnetic properties
KOBE STEEL LTD0 citations48
US10060015B2Aug 28, 2018
Steel for high-strength bolts which has excellent delayed fracture resistance and bolt formability, and bolt
KOBE STEEL LTD0 citations45
US9695488B2Jul 4, 2017
Steel for bolt use, bolt, and method for manufacturing bolt
KOBE STEEL LTD0 citations38