Inventor
TANAKA DAIICHIRO
US11 patents
⚠️ This page may combine multiple inventors who share the name “TANAKA DAIICHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJIKURA LTD
6 patentsUS7203397B2Apr 10, 2007
Polarization maintaining optical fiber coupler and method of manufacturing same
FUJIKURA LTD12 citations81
US9228890B2Jan 5, 2016
Method of measuring acoustic distribution and distributed acoustic sensor
FUJIKURA LTD6 citations72
US7346258B2Mar 18, 2008
Optical fiber and optical fiber coupler, erbium-doped optical fiber amplifier, and optical waveguide using the same
FUJIKURA LTD5 citations72
US7711238B2May 4, 2010
Optical fiber and optical fiber coupler, erbium-doped optical fiber amplifier, and optical waveguide using the same
FUJIKURA LTD1 citations61
US7406236B2Jul 29, 2008
Optical fiber and optical fiber coupler, erbium-doped optical fiber amplifier, and optical waveguide using the same
FUJIKURA LTD4 citations61
US7450802B2Nov 11, 2008
Optical fiber coupler and optical fiber therefor
FUJIKURA LTD0 citations48