Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9755748 | Transmission apparatus and method for controlling the transmission apparatus | Mitsuo Yoneda | 2017-09-05 |
| 8903248 | Transmission apparatus and method for controlling the transmission apparatus | — | 2014-12-02 |
| 8666243 | Optical transmission device, optical transmission method, and recording medium thereof | Seiji Sugiyama, Akira Yamamoto, Koji Bato | 2014-03-04 |
| 8331787 | Optical transmitting apparatus and optical multiplexing unit | Takeshi Noma, Haruki Tanaka, Yoshikazu Nakanishi, Hideaki Sugiya, Ichiro Nakajima +1 more | 2012-12-11 |
| 8195052 | Optical wavelength multiplexing system, optical wavelength multiplexing method, and computer product | Akira Yamamoto, Tatsuo Nagayoshi, Katsumi Sugawa, Hideaki Sugiya | 2012-06-05 |
| 7733467 | Optical passive device product identification apparatus and connectivity determination apparatus | Tatsuo Nagayoshi, Akira Yamamoto, Katsumi Sugawa, Takuji Maeda | 2010-06-08 |