Inventor
EDAHIRO TAKAO
JP15 patents
⚠️ This page may combine multiple inventors who share the name “EDAHIRO TAKAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
14 patentsUS4402720ASep 6, 1983
Process for preparing glass preform for optical fiber
NIPPON TELEGRAPH & TELEPHONE89 citations96
US4345928AAug 24, 1982
Fabrication method of single-mode optical fiber preforms
NIPPON TELEGRAPH & TELEPHONE63 citations95
US4372647AFeb 8, 1983
Single mode optical fibers
NIPPON TELEGRAPH & TELEPHONE56 citations93
US3950073AApr 13, 1976
Eccentric core optical waveguide
NIPPON TELEGRAPH & TELEPHONE67 citations93
US4367085AJan 4, 1983
Method of fabricating multi-mode optical fiber preforms
NIPPON TELEGRAPH & TELEPHONE45 citations91
US4338111AJul 6, 1982
Process for producing a glass preform for optical fiber
NIPPON TELEGRAPH & TELEPHONE23 citations82
US4528010AJul 9, 1985
Process for producing optical glass product
NIPPON TELEGRAPH & TELEPHONE25 citations81
US4480897ANov 6, 1984
Single-polarization single-mode optical fiber
NIPPON TELEGRAPH & TELEPHONE24 citations79
US4414008ANov 8, 1983
Process for producing optical fiber preform
NIPPON TELEGRAPH & TELEPHONE7 citations73
US4406684ASep 27, 1983
Core torch for fabricating single-mode optical fiber preforms
NIPPON TELEGRAPH & TELEPHONE10 citations73
US4406680ASep 27, 1983
Process for producing high-purity silica glass
NIPPON TELEGRAPH & TELEPHONE15 citations73
US4525027AJun 25, 1985
Single mode optical fibers
NIPPON TELEGRAPH & TELEPHONE13 citations71
US4838916AJun 13, 1989
Method for making single-polorization, single mode optical fibers
NIPPON TELEGRAPH & TELEPHONE16 citations70
US4318726AMar 9, 1982
Process for producing optical fiber preform
NIPPON TELEGRAPH & TELEPHONE5 citations62