Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11476635 | Optically amplified repeater system and optical amplifier | Takayuki Mizuno, Akira Isoda, Kohki Shibahara, Yutaka Miyamoto | 2022-10-18 |
| 11362753 | Optical node device | Hirotaka Ono, Shingo Kawai, Yutaka Miyamoto | 2022-06-14 |
| 11349524 | Symbol-determining device and symbol determination method | Hiroki Taniguchi, Shuto Yamamoto, Akira Masuda | 2022-05-31 |
| 10965375 | Optical node device | Hirotaka Ono, Kazunori Senoo, Kenya Suzuki, Keita Yamaguchi, Shingo Kawai +1 more | 2021-03-30 |
| 10756819 | Encoding device and decoding device | Shuto Yamamoto, Akira Masuda, Yoshiaki Sone | 2020-08-25 |
| 10693562 | Encoding device and decoding device | Shuto Yamamoto, Akira Masuda, Yoshiaki Sone | 2020-06-23 |
| 9723387 | Optical signal processing device with an array waveguide coupled to a slab waveguide with two arcs | Kenya Suzuki, Kazunori Seno, Naoki Ooba, Tetsuo Takahashi, Toshio Watanabe +4 more | 2017-08-01 |
| 9336080 | Transmission system and transmission method | Akira Hirano, Yoshiaki Kisaka, Yoshiaki Sone, Akihiro Kadohata, Takafumi Tanaka | 2016-05-10 |
| 9294826 | Wavelength selection switch system and method for controlling wavelength selection switch | Tomoyoshi Kataoka, Etsu Hashimoto, Akio Sahara, Norio Sato, Yosuke Takeuchi | 2016-03-22 |
| 8625588 | Packet transmission method and packet transmission device | Ippei Shake, Wataru Imajyuku, Katsuhiro Shimano | 2014-01-07 |
| 7869428 | Packet transmission method and packet transmission device | Ippei Shake, Wataru Imajyuku, Katsuhiro Shimano | 2011-01-11 |