KI

Koichi Ishihara

NT NTT: 4 patents #6 of 199Top 4%
Overall (2017): #43,269 of 506,227Top 9%
4
Patents 2017

Issued Patents 2017

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9698932 Optical transmission/reception system, transmitter, receiver, and optical transmission/reception method Yoshiaki Kisaka, Masahito Tomizawa, Etsushi Yamazaki 2017-07-04
9667350 Optical receiving device and phase cycle reduction method Kengo Horikoshi, Kohki Shibahara, Etsushi Yamazaki, Mitsuteru YOSHIDA, Takayuki Kobayashi +4 more 2017-05-30
9621299 Coherent communication system, communication method, and transmission method Masato Mizoguchi, Tomoki Murakami, Tomoyoshi Kataoka, Yoshiaki Kisaka, Tadao Nakagawa +5 more 2017-04-11
9614621 Signal generating circuit, optical signal transmitting apparatus, signal receiving circuit, method for establishing optical signal synchronization, and optical signal synchronization system Takayuki Kobayashi, Riichi Kudo, Yasushi Takatori, Munehiro Matsui, Masato Mizoguchi +6 more 2017-04-04