Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11901953 | Optical transmission system and characteristic estimation method | Takeo SASAI, Masanori Nakamura, Yoshiaki Kisaka | 2024-02-13 |
| 11870489 | S/N ratio estimation circuit, and adaptive filter circuit | Masanori Nakamura, Shuto Yamamoto, Fukutaro HAMAOKA, Yoshiaki Kisaka | 2024-01-09 |
| 11736202 | Optical receiver evaluation method and optical receiver evaluation apparatus | Shogo Yamanaka, Masanori Nakamura | 2023-08-22 |
| 11711151 | Optical transmission system and compensation method | Masanori Nakamura, Kengo Horikoshi, Shoichiro Kuwahara, Yoshiaki Kisaka | 2023-07-25 |
| 11558114 | Optical transmission characteristics compensating method and optical transmission characteristics compensating system | Akihiro Yamagishi, Atsushi Hoki, Katsuya Tanaka, Eisuke Tsuchiya, Masanori Nakamura | 2023-01-17 |
| 11444699 | Optical transmission system, optical receiving apparatus and optical transmission method | Akira Masuda, Fukutaro HAMAOKA, Shuto Yamamoto, Seiji Okamoto, Kengo Horikoshi +2 more | 2022-09-13 |
| 11283528 | Digital coherent receiver and digital coherent receiving method | Akira Masuda, Seiji Okamoto, Shuto Yamamoto, Fukutaro HAMAOKA, Masanori Nakamura +1 more | 2022-03-22 |
| 11228366 | Optical transmission characteristics estimation method, optical transmission characteristics estimation system, and optical transmission characteristics compensation system | Akihiro Yamagishi, Atsushi Hoki, Masayuki Sugasawa, Masanori Nakamura | 2022-01-18 |
| 10651944 | Optical transmitter, optical receiver, optical data transmission system, optical transmission method, and optical reception method | Kengo Horikoshi, Seiji Okamoto, Mitsuteru YOSHIDA, Fukutaro HAMAOKA, Yoshiaki Yamada +1 more | 2020-05-12 |
| 10637569 | Optical transmission characteristic estimation method, optical transmission characteristic compensation method, optical transmission characteristic estimation system and optical transmission characteristic compensation system | Akihiro Yamagishi, Tetsuya Maruyama, Masanori Nakamura, Shogo Yamanaka | 2020-04-28 |