Inventor

MIZUMURA MASAAKI

JP27 patents

⚠️ This page may combine multiple inventors who share the name “MIZUMURA MASAAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MIZUMURA MASAAKI

NIPPON STEEL & SUMITOMO METAL CORP

Metal pipe having thickened end portion, and method of manufacturing same

Coupling structure, coupling member having coupling structure, and method for manufacturing coupling member having coupling structure

Method of producing shaped steel changing in cross-sectional shape in longitudinal direction and roll forming apparatus for same

Method for manufacturing shaped steel the cross-sectional shape of which changes in the longitudinal direction, and roll forming device

Torsion beam manufacturing method and torsion beam manufacturing apparatus

Method of manufacturing variable wall thickness steel pipe and variable wall thickness steel pipe

Torsion beam manufacturing method, torsion beam manufacturing apparatus, and torsion beam

Method of manufacturing flaring-processed metal pipe

Structural member

Apparatus and method for ram bending of tube material

Coupling structure, coupling member having coupling structure, and method for manufacturing coupling member having coupling structure

Burring method and burring apparatus

Camshaft-manufacturing method and gear shaft-manufacturing method

MIZUMURA MASAAKI

Method for hydroforming and hydroformed product

Apparatus and method for ram bending of tube material

Hydroforming apparatus and method for hydroforming

Method for hydroforming and a hydroformed product

Hydroformed product

Method for bending sheet metal and product of sheet metal

NIPPON STEEL CORP

Manufacturing method and manufacturing device for link part

Torsion beam manufacturing method and torsion beam manufacturing apparatus

Hydroforming method

Piercing method and piercing apparatus using hydroforming and hydroformed part and structure

SATO KOICHI

Working apparatus and working method of sheet metal

Plastic working method of metals and plastic working apparatus

WADA MANABU

Structural member

NIWA TOSHIYUKI

Front body structure