Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11870489 | S/N ratio estimation circuit, and adaptive filter circuit | Masanori Nakamura, Shuto Yamamoto, Asuka Matsushita, Yoshiaki Kisaka | 2024-01-09 |
| 11799557 | Communication apparatus, and optical transmission system | Takeshi KAKIZAKI, Masanori Nakamura, Takeo SASAI | 2023-10-24 |
| 11728889 | Optical transmitting apparatus and transmission characteristics estimation method | Takeo SASAI, Masanori Nakamura, Seiji Okamoto | 2023-08-15 |
| 11716149 | Optical receiving apparatus and coefficient optimization method | Takeo SASAI | 2023-08-01 |
| 11632185 | Signal processing method, signal processing apparatus and communication system | Takayuki Kobayashi, Masanori Nakamura, Yutaka Miyamoto | 2023-04-18 |
| 11463169 | Wavelength dispersion amount estimation apparatus | Kengo Horikoshi, Masanori Nakamura, Yoshiaki Kisaka, Seiji Okamoto | 2022-10-04 |
| 11444699 | Optical transmission system, optical receiving apparatus and optical transmission method | Akira Masuda, Shuto Yamamoto, Seiji Okamoto, Kengo Horikoshi, Masanori Nakamura +2 more | 2022-09-13 |
| 11303359 | Communication system, optical transmitting apparatus, and optical receiving apparatus | Seiji Okamoto, Masanori Nakamura, Yoshiaki Kisaka | 2022-04-12 |
| 11283527 | Optical transmitting system, optical transmitting apparatus, optical receiving apparatus and transfer function estimating method | Masanori Nakamura, Hiroshi Yamazaki, Munehiko Nagatani, Takayuki Kobayashi, Yutaka Miyamoto | 2022-03-22 |
| 11283528 | Digital coherent receiver and digital coherent receiving method | Akira Masuda, Seiji Okamoto, Shuto Yamamoto, Masanori Nakamura, Asuka Matsushita +1 more | 2022-03-22 |
| 11245487 | Optical transmission control method and optical transmission system | Kyo MINOGUCHI, Seiji Okamoto, Yoshiaki Kisaka | 2022-02-08 |
| 11108468 | Optical transmitter, optical receiver and communication system | Masanori Nakamura | 2021-08-31 |
| 10826620 | Optical receiver, optical reception method, and optical communication system | Seiji Okamoto, Masanori Nakamura, Kengo Horikoshi, Yoshiaki Kisaka | 2020-11-03 |
| 10651944 | Optical transmitter, optical receiver, optical data transmission system, optical transmission method, and optical reception method | Kengo Horikoshi, Seiji Okamoto, Asuka Matsushita, Mitsuteru YOSHIDA, Yoshiaki Yamada +1 more | 2020-05-12 |
| 9749061 | Digital signal processing device | Takeshi Seki, Toshiya Matsuda, Akira Naka | 2017-08-29 |
| 9692543 | Optical transmission system | Toshiya Matsuda, Akira Naka, Kohei Saito | 2017-06-27 |