Inventor

NAGAHATA TSUTOMU

JP4 patents

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

TOSHIBA CERAMICS CO

2 patents

US4632283ADec 30, 1986

Molten metal discharging device

TOSHIBA CERAMICS CO14 citations71

US4583721AApr 22, 1986

Molten metal discharging device

TOSHIBA CERAMICS CO12 citations71

SUMITOMO METAL IND

2 patents

US4325748AApr 20, 1982

Method for producing steel plate having excellent resistance to hydrogen induced cracking

SUMITOMO METAL IND12 citations65

US4129439ADec 12, 1978

Process for refining molten steel using ferroalloy

SUMITOMO METAL IND5 citations54