Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8798465 | Optical path switching signal transmission/reception apparatus and corresponding method | Norio Tanaka, Shigeru Takarada, Hirobumi Watanabe, Ichiro Ueno, Takashi Hiraga +1 more | 2014-08-05 |
| 8659818 | Optical-path-switching apparatus and light signal optical-path-switching method | Ichiro Ueno, Takashi Hiraga, Noritaka Yamamoto, Hirobumi Watanabe, Noriyasu Shiga +2 more | 2014-02-25 |
| 7801443 | Automatic circulation collection type data collecting system | Takashi Hiraga, Ichiro Ueno, Noritaka Yamamoto, Toshiko Mizokuro, Nobutaka Tanigaki +3 more | 2010-09-21 |