Inventor

HAGISHIMA KOICHI

JP2 patents

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

NIPPON TELEGRAPH & TELEPHONE

1 patent

US4864558ASep 5, 1989

Self-routing switch

NIPPON TELEGRAPH & TELEPHONE39 citations89

HITACHI LTD

1 patent

US4385336AMay 24, 1983

Current supplying circuit with shorted-to-ground fault detecting function

HITACHI LTD33 citations89