Issued Patents 2017
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9698932 | Optical transmission/reception system, transmitter, receiver, and optical transmission/reception method | Yoshiaki Kisaka, Koichi Ishihara, Masahito Tomizawa | 2017-07-04 |
| 9667350 | Optical receiving device and phase cycle reduction method | Kengo Horikoshi, Kohki Shibahara, Mitsuteru YOSHIDA, Koichi Ishihara, Takayuki Kobayashi +4 more | 2017-05-30 |
| 9621299 | Coherent communication system, communication method, and transmission method | Koichi Ishihara, Masato Mizoguchi, Tomoki Murakami, Tomoyoshi Kataoka, Yoshiaki Kisaka +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 | Koichi Ishihara, Takayuki Kobayashi, Riichi Kudo, Yasushi Takatori, Munehiro Matsui +6 more | 2017-04-04 |