Issued Patents All Time
Showing 25 most recent of 155 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12362837 | Optical signal demodulator, control method and program | Shuto Yamamoto, Hiroki Taniguchi, Yoshiaki Kisaka | 2025-07-15 |
| 12231173 | Symbol determination device and tap selection method | Hiroki Taniguchi, Shuto Yamamoto, Yoshiaki Kisaka | 2025-02-18 |
| 12224889 | Adaptive equalization filter and method for updating filter coefficients | Etsushi Yamazaki, Seiji Okamoto, Kengo Horikoshi, Takeo SASAI, Yoshiaki Kisaka | 2025-02-11 |
| 12184337 | Optical transmission system, control apparatus, optical transmission method and program | Shuto Yamamoto, Hiroki Taniguchi, Yoshiaki Kisaka | 2024-12-31 |
| 12085038 | Internal combustion engine | Takuro Mita, Yorimasa Tsubota, Takafumi Kishigami | 2024-09-10 |
| 12057863 | Communication system, communication method and program | Takeshi KAKIZAKI, Shigeki Miyake | 2024-08-06 |
| 12013708 | Gas safety device | Takashi Kayaba, Yuji Fujii, Kenji Yasuda, Yuki Anan | 2024-06-18 |
| 11948754 | Three-terminal capacitor with cylindrical main body and electronic component including the same | Shingo Ito, Koichi Ikeda, Ken Takakura, Satoshi Yoshida, Syuichi Nabekura +4 more | 2024-04-02 |
| 11901953 | Optical transmission system and characteristic estimation method | Takeo SASAI, Asuka Matsushita, Yoshiaki Kisaka | 2024-02-13 |
| 11870489 | S/N ratio estimation circuit, and adaptive filter circuit | Shuto Yamamoto, Asuka Matsushita, Fukutaro HAMAOKA, Yoshiaki Kisaka | 2024-01-09 |
| 11855699 | Optical transmission system, optical transmitting apparatus and optical receiving apparatus | Shuto Yamamoto, Hiroki Taniguchi, Yoshiaki Kisaka | 2023-12-26 |
| 11799547 | Signal processing apparatus, signal processing method, and program | Kengo Horikoshi, Seiji Okamoto, Hideki Nishizawa, Etsushi Yamazaki | 2023-10-24 |
| 11799557 | Communication apparatus, and optical transmission system | Takeshi KAKIZAKI, Fukutaro HAMAOKA, Takeo SASAI | 2023-10-24 |
| 11742950 | Wavelength dispersion amount calculation apparatus and wavelength dispersion amount calculation method | Shimpei SHIMIZU, Takayuki Kobayashi, Yutaka Miyamoto | 2023-08-29 |
| 11736202 | Optical receiver evaluation method and optical receiver evaluation apparatus | Shogo Yamanaka, Asuka Matsushita | 2023-08-22 |
| 11728889 | Optical transmitting apparatus and transmission characteristics estimation method | Takeo SASAI, Fukutaro HAMAOKA, Seiji Okamoto | 2023-08-15 |
| 11711151 | Optical transmission system and compensation method | Asuka Matsushita, Kengo Horikoshi, Shoichiro Kuwahara, Yoshiaki Kisaka | 2023-07-25 |
| 11706065 | Symbol judgement apparatus and symbol judgement method | Hiroki Taniguchi, Shuto Yamamoto, Akira Masuda, Yoshiaki Kisaka | 2023-07-18 |
| 11683093 | Wavelength dispersion compensation apparatus, optical receiving apparatus, wavelength dispersion compensation method and computer program | Seiji Okamoto, Kengo Horikoshi, Shuto Yamamoto, Takayuki Kobayashi, Yoshiaki Kisaka +1 more | 2023-06-20 |
| 11671119 | Signal processing apparatus and signal processing method | Seiji Okamoto, Etsushi Yamazaki, Yoshiaki Kisaka, Masahito Tomizawa | 2023-06-06 |
| 11643771 | Reinforcing fiber bundle, reinforcing fiber-opening woven fabric, fiber reinforced composite, and methods for producing thereof | Yuji Fujimori, Toshio INAMORI, Toshio Yamane | 2023-05-09 |
| 11632185 | Signal processing method, signal processing apparatus and communication system | Takayuki Kobayashi, Fukutaro HAMAOKA, Yutaka Miyamoto | 2023-04-18 |
| 11558114 | Optical transmission characteristics compensating method and optical transmission characteristics compensating system | Akihiro Yamagishi, Atsushi Hoki, Katsuya Tanaka, Eisuke Tsuchiya, Asuka Matsushita | 2023-01-17 |
| 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 |