P

Inventor

IMAGAWA HITOSHI

JP5 patents
⚠️ This page may combine multiple inventors who share the name “IMAGAWA HITOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON TELEGRAPH & TELEPHONE

3 patents
US5022025AJun 4, 1991

Self-routing switch and its routing method

NIPPON TELEGRAPH & TELEPHONE36 citations90
US4864558ASep 5, 1989

Self-routing switch

NIPPON TELEGRAPH & TELEPHONE39 citations89
US4245325AJan 13, 1981

Digital multifrequency signalling receiver

NIPPON TELEGRAPH & TELEPHONE29 citations86

OKI ELECTRIC IND CO LTD

1 patent
US4328398AMay 4, 1982

Digital multi-frequency receiver

OKI ELECTRIC IND CO LTD12 citations69

NEC CORP

1 patent
US5594724AJan 14, 1997

Transmission convergence sublayer multiplex generating/terminating apparatus

NEC CORP8 citations68