Inventor
KAWABATA FUMIMARU
JP21 patents
⚠️ This page may combine multiple inventors who share the name “KAWABATA FUMIMARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KAWASAKI STEEL CO
17 patentsUS5948183ASep 7, 1999
Hot-rolled steel sheet and method for forming hot-rolled steel sheet having low yield ratio, high strength and excellent toughness
KAWASAKI STEEL CO31 citations92
US6344093B1Feb 5, 2002
High tensile strength steel product for high heat input welding, having excellent toughness in heat-affected zone
KAWASAKI STEEL CO14 citations83
US4442340AApr 10, 1984
Four-electrode submerged arc welding process
KAWASAKI STEEL CO26 citations79
US6007644ADec 28, 1999
Heavy-wall H-shaped steel having high toughness and yield strength and process for making steel
KAWASAKI STEEL CO14 citations73
US6299710B1Oct 9, 2001
Method of producing a bainite steel product
KAWASAKI STEEL CO5 citations72
US5743972AApr 28, 1998
Heavy-wall structural steel and method
KAWASAKI STEEL CO14 citations72
US4527033AJul 2, 1985
Steel pipe welding method
KAWASAKI STEEL CO13 citations70
US6451134B1Sep 17, 2002
590MPa class heavy gauge H-shaped steel having excellent toughness and method of producing the same
KAWASAKI STEEL CO5 citations62
US6440235B1Aug 27, 2002
Method of manufacturing high productive and high strength rolled H-shaped
KAWASAKI STEEL CO2 citations62
US6358335B1Mar 19, 2002
Continuous casting slab suitable for the production of non-tempered high tensile steel material
KAWASAKI STEEL CO3 citations62
US5989366ANov 23, 1999
Method of manufacturing thick steel product of high strength and high toughness having excellent weldability and minimal variation of structure and physical properties
KAWASAKI STEEL CO6 citations62
US5900076AMay 4, 1999
Bainitic steel materials having a less scattering of properties and method of producing the same
KAWASAKI STEEL CO2 citations61
US5882447AMar 16, 1999
Heavy-wall structural steel and method
KAWASAKI STEEL CO3 citations61
US5766381AJun 16, 1998
Method of producing bainitic steel materials having a less scattering of properties
KAWASAKI STEEL CO2 citations61
US6436340B1Aug 20, 2002
Weatherable steel material
KAWASAKI STEEL CO3 citations60
US6068712AMay 30, 2000
Steel products having superior weathering, method of producing the steel products, and method of forming weathering protective rust on steel product surfaces
KAWASAKI STEEL CO2 citations58
US6521057B1Feb 18, 2003
High-strength high-toughness steel products
KAWASAKI STEEL CO0 citations51