Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10091565 | Wavelength demultiplexer and wavelength multiplexer using same | — | 2018-10-02 |
| 9374164 | Optical access system | — | 2016-06-21 |
| 7149435 | Method and apparatus for transmitting high-frequency signals in optical communication system | Wataru Chujo, Ken-ichi Kitayama | 2006-12-12 |
| 7006772 | Method and apparatus for transmitting high-frequency signals in optical communication system | Wataru Chujo, Ken-ichi Kitayama | 2006-02-28 |