Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8767802 | Transmission device and transmission method | Masashige Kawarai, Koichi Sugama, Tomohiro Ueno, Takashi Kaiga, Yukio Katayanagi | 2014-07-01 |
| 8396362 | Light transmitting and receiving module, method for managing the same, light transmitting and receiving apparatus, and wavelength-multiplexing light transmitting and receiving apparatus | Tsutomu Aiba | 2013-03-12 |
| 7757115 | Feedback control device | Yoshiaki Shibayama, Tsutomu Yamada, Hiroshi Oikawa | 2010-07-13 |
| 7657175 | Optical communication device | Yoshiaki Shibayama | 2010-02-02 |