Inventor

KATSUMURA TATSURO

JP20 patents

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

KATSUMURA TATSURO

JFE STEEL CORP

Rolling mill for diameter reducing rolling and method for manufacturing strip material

Stainless steel seamless pipe and method for manufacturing same

Stainless steel pipe and method for manufacturing same

Duplex stainless steel seamless pipe and method for manufacturing same

Seamless pipe and method for manufacturing same

Apparatus line for manufacturing seamless steel pipe and tube and method of manufacturing duplex seamless stainless steel pipe

Rolling straightening machine and method of manufacturing a pipe or tube or a bar using same

Stainless steel pipe and method for manufacturing same

Skew rolling apparatus, method for manufacturing seamless pipe shell, and method for manufacturing seamless steel pipe

Plug for rolling of seamless steel pipe, method for manufacturing the same and method for manufacturing seamless steel pipe using the same

Apparatus line for manufacturing seamless steel pipe and tube and method of manufacturing duplex seamless stainless steel pipe

High-strength heavy-walled stainless steel seamless tube or pipe and method of manufacturing the same

Equipment line for manufacturing heavy-walled steel products

Method for manufacturing heavy wall steel pipe

Equipment line for manufacturing seamless steel tube or pipe and method of manufacturing high-strength stainless steel seamless tube or pipe for oil wells using the equipment line

Method of manufacturing round steel billet

NIPPON KOKAN KK

Method for manufacturing seamless pipe

Method for manufacturing seamless pipe

Method for producing a seamless steel tubular product

KATSUMURA TATSURO

Tube expanding method for manufacturing metal tube