Inventor

NAGASHIMA EIKI

JP3 patents

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

TOYO ENGINEERING CORP

2 patents

US6564990B2May 20, 2003

Method of welding high chromium austenitic stainless steel pipe and shielding gas mixture for welding

TOYO ENGINEERING CORP7 citations62

US9890114B2Feb 13, 2018

Urea synthesis method

TOYO ENGINEERING CORP0 citations38

SUMITOMO METAL IND

1 patent

US7347903B2Mar 25, 2008

Duplex stainless steel for urea manufacturing plants

SUMITOMO METAL IND27 citations86