Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12362837 | Optical signal demodulator, control method and program | Masanori Nakamura, Hiroki Taniguchi, Yoshiaki Kisaka | 2025-07-15 |
| 12231173 | Symbol determination device and tap selection method | Hiroki Taniguchi, Masanori Nakamura, Yoshiaki Kisaka | 2025-02-18 |
| 12184337 | Optical transmission system, control apparatus, optical transmission method and program | Masanori Nakamura, Hiroki Taniguchi, Yoshiaki Kisaka | 2024-12-31 |
| 12107762 | Optical and electronic integrated switch | Osamu Moriwaki, Shunichi Soma, Keita Yamaguchi, Kenya Suzuki, Seiki Kuwabara +3 more | 2024-10-01 |
| 12034484 | Optical communication network management apparatus | Takafumi Tanaka, Hideki Nishizawa, Tetsuro Inui, Seiki Kuwabara, Seiji Okamoto | 2024-07-09 |
| 11979694 | Optical and electronic integrated switch | Osamu Moriwaki, Shunichi Soma, Keita Yamaguchi, Kenya Suzuki, Seiki Kuwabara +3 more | 2024-05-07 |
| 11930309 | Optical and electronic integrated switch | Keita Yamaguchi, Osamu Moriwaki, Shunichi Soma, Kenya Suzuki, Seiki Kuwabara +3 more | 2024-03-12 |
| 11881897 | Optical and electronic integrated switch and optical network system | Hideki Nishizawa, Seiki Kuwabara, Seiji Okamoto, Tetsuro Inui, Shunichi Soma +3 more | 2024-01-23 |
| 11870489 | S/N ratio estimation circuit, and adaptive filter circuit | Masanori Nakamura, Asuka Matsushita, Fukutaro HAMAOKA, Yoshiaki Kisaka | 2024-01-09 |
| 11855699 | Optical transmission system, optical transmitting apparatus and optical receiving apparatus | Masanori Nakamura, Hiroki Taniguchi, Yoshiaki Kisaka | 2023-12-26 |
| 11706065 | Symbol judgement apparatus and symbol judgement method | Hiroki Taniguchi, Masanori Nakamura, Akira Masuda, Yoshiaki Kisaka | 2023-07-18 |
| 11683093 | Wavelength dispersion compensation apparatus, optical receiving apparatus, wavelength dispersion compensation method and computer program | Masanori Nakamura, Seiji Okamoto, Kengo Horikoshi, Takayuki Kobayashi, Yoshiaki Kisaka +1 more | 2023-06-20 |
| 11581944 | Optical transmission system | Seiji Okamoto, Akira Masuda, Hiroki Taniguchi, Yoshiaki Kisaka | 2023-02-14 |
| 11444694 | Optical transmission system | Akira Masuda, Hiroki Taniguchi, Yoshiaki Kisaka | 2022-09-13 |
| 11444699 | Optical transmission system, optical receiving apparatus and optical transmission method | Akira Masuda, Fukutaro HAMAOKA, Seiji Okamoto, Kengo Horikoshi, Masanori Nakamura +2 more | 2022-09-13 |
| 11349524 | Symbol-determining device and symbol determination method | Hiroki Taniguchi, Akira Masuda, Mitsunori Fukutoku | 2022-05-31 |
| 11283528 | Digital coherent receiver and digital coherent receiving method | Akira Masuda, Seiji Okamoto, Fukutaro HAMAOKA, Masanori Nakamura, Asuka Matsushita +1 more | 2022-03-22 |
| 10756819 | Encoding device and decoding device | Akira Masuda, Yoshiaki Sone, Mitsunori Fukutoku | 2020-08-25 |
| 10693562 | Encoding device and decoding device | Akira Masuda, Yoshiaki Sone, Mitsunori Fukutoku | 2020-06-23 |