Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9306670 | Optical coupling/splitting device, two-way optical propagation device, and optical-transmit-receive system | Masamichi Fujiwara, Kenichi Suzuki, Manabu Oguma, Toshio Watanabe, Hiroshi Takahashi +2 more | 2016-04-05 |
| 9276670 | Self-diagnostic method for PON protection system, and PON protection system | Youichi Fukada, Takashi Mitsui, Takeshi Sakamoto, Yasutaka Kimura | 2016-03-01 |