Inventor

KUMAKURA HIROSHI

JP3 patents

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

NEC CORP

2 patents

US5726767AMar 10, 1998

Automatic facsimile signal analyzing apparatus for a telephone exchange system

NEC CORP4 citations60

US6301343B1Oct 9, 2001

Trunk line exchange system

NEC CORP0 citations35

SONY CORP

1 patent

US4677252AJun 30, 1987

Circuit board

SONY CORP41 citations91