Issued Patents 2022
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11463169 | Wavelength dispersion amount estimation apparatus | Kengo Horikoshi, Yoshiaki Kisaka, Seiji Okamoto, Fukutaro HAMAOKA | 2022-10-04 |
| 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 |
| 11438083 | Signal generation device | Hiroshi Yamazaki, Munehiko Nagatani, Hideyuki Nosaka, Yutaka Miyamoto | 2022-09-06 |
| 11397363 | Automatic bias control circuit | Hiroto Kawakami, Shoichiro Kuwahara, Yoshiaki Kisaka | 2022-07-26 |
| 11381317 | Optical receiving apparatus and waveform distortion compensation method | Seiji Okamoto, Yoshiaki Kisaka | 2022-07-05 |
| 11349572 | Optical transmission system, optical transmitting apparatus, and optical receiving apparatus | Seiji Okamoto, Etsushi Yamazaki, Yoshiaki Kisaka | 2022-05-31 |
| 11303359 | Communication system, optical transmitting apparatus, and optical receiving apparatus | Seiji Okamoto, Fukutaro HAMAOKA, Yoshiaki Kisaka | 2022-04-12 |
| 11283528 | Digital coherent receiver and digital coherent receiving method | Akira Masuda, Seiji Okamoto, Shuto Yamamoto, Fukutaro HAMAOKA, Asuka Matsushita +1 more | 2022-03-22 |
| 11283527 | Optical transmitting system, optical transmitting apparatus, optical receiving apparatus and transfer function estimating method | Fukutaro HAMAOKA, Hiroshi Yamazaki, Munehiko Nagatani, Takayuki Kobayashi, Yutaka Miyamoto | 2022-03-22 |
| 11258512 | Receiving apparatus and receiving method | Seiji Okamoto, Kengo Horikoshi | 2022-02-22 |
| 11228366 | Optical transmission characteristics estimation method, optical transmission characteristics estimation system, and optical transmission characteristics compensation system | Akihiro Yamagishi, Atsushi Hoki, Masayuki Sugasawa, Asuka Matsushita | 2022-01-18 |