Inventor

KOYA TSUGIO

JP3 patents

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

MITSUBISHI METAL CORP

2 patents

US5037471AAug 6, 1991

Method for manufacturing oxygen-free copper

MITSUBISHI METAL CORP22 citations89

US4901550AFeb 20, 1990

Manufacturing method of extra fine wire

MITSUBISHI METAL CORP38 citations89

MITSUBISHI MATERIALS CORP

1 patent

US5143355ASep 1, 1992

Apparatus for manufacturing oxygen-free copper

MITSUBISHI MATERIALS CORP23 citations89