P

Inventor

SUGAWARA YASUYUKI

JP4 patents
⚠️ This page may combine multiple inventors who share the name “SUGAWARA YASUYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FUJIKURA LTD

3 patents
US4812014AMar 14, 1989

Water penetration-detecting apparatus and optical fiber cable using same

FUJIKURA LTD48 citations89
US4836639AJun 6, 1989

Optical fiber cable having a neutral axis defining a zero stress

FUJIKURA LTD35 citations88
US4679899AJul 14, 1987

Optical fiber

FUJIKURA LTD5 citations60

NIPPON TELEGRAPH & TELEPHONE

1 patent
US4114981ASep 19, 1978

Optical fiber for communication

NIPPON TELEGRAPH & TELEPHONE33 citations88