Inventor
ITOH MIKITAKA
JP13 patents
⚠️ This page may combine multiple inventors who share the name “ITOH MIKITAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
9 patentsUS6937797B2Aug 30, 2005
Planar lightwave circuit and optical circuit
NIPPON TELEGRAPH & TELEPHONE20 citations92
US6304706B1Oct 16, 2001
Planar lightwave circuit
NIPPON TELEGRAPH & TELEPHONE34 citations92
US8369666B2Feb 5, 2013
Optical wavelength multiplexing/ de-multiplexing circuit
NIPPON TELEGRAPH & TELEPHONE15 citations82
US6580862B2Jun 17, 2003
Optical waveguide circuit
NIPPON TELEGRAPH & TELEPHONE19 citations82
US6625370B2Sep 23, 2003
Optical waveguide and fabricating method thereof, and optical waveguide circuit
NIPPON TELEGRAPH & TELEPHONE8 citations73
US10050717B2Aug 14, 2018
Multi-stage interferometer circuit with waveform shaping function
NIPPON TELEGRAPH & TELEPHONE2 citations72
US6775454B2Aug 10, 2004
Silica-based optical waveguide circuit and fabrication method thereof
NIPPON TELEGRAPH & TELEPHONE5 citations62
US9116305B2Aug 25, 2015
Arrayed waveguide grating, optical module provided with said arrayed waveguide grating, and optical communications system
NIPPON TELEGRAPH & TELEPHONE0 citations41
US10333280B2Jun 25, 2019
Semiconductor laser device
NIPPON TELEGRAPH & TELEPHONE0 citations38