Issued Patents All Time
Showing 1–25 of 91 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12400783 | Transformer including first and second windings, and first and second cores, and having structure for preventing core cracking | Takehiko Yamakawa, Hiromu Matsumoto, Susumu Nakamura | 2025-08-26 |
| 12395248 | Signal detector, carrier phase retrieval apparatus, carrier phase retrieval method and carrier phase retrieval program | Koki Shibahara, Takayuki Mizuno | 2025-08-19 |
| 12176952 | Signal detection apparatus, signal detection method and program | Koki Shibahara, Takayuki Mizuno | 2024-12-24 |
| 12170542 | Optical transmitter | Hiroto Kawakami, Hiroshi Yamazaki | 2024-12-17 |
| 12099235 | Amplifying fiber and optical amplifier | Hirotaka Ono | 2024-09-24 |
| 12034269 | Light amplifying relay system | Takayuki Mizuno, Koki Shibahara, Akira Isoda, Takayuki Kobayashi | 2024-07-09 |
| 11929784 | Wavelength dispersion compensation apparatus and wavelength dispersion compensation method | Shimpei SHIMIZU, Takushi Kazama, Takayuki Kobayashi | 2024-03-12 |
| 11888522 | Optical transmission system and optical transmission method | Koki Shibahara, Takayuki Mizuno | 2024-01-30 |
| 11888281 | Multimode optical amplifier | Hirotaka Ono, Takayuki Mizuno, Koki Shibahara | 2024-01-30 |
| 11888584 | Optical transmission system, optical transmission apparatus and optical transmission method | Koki Shibahara, Takayuki Mizuno | 2024-01-30 |
| 11770205 | Optical signal processing apparatus, optical signal processing method and computer program | Koki Shibahara, Takayuki Mizuno | 2023-09-26 |
| 11745258 | Casting solidification analysis method, casting method, and electronic program | Haruki ITOFUJI | 2023-09-05 |
| 11742950 | Wavelength dispersion amount calculation apparatus and wavelength dispersion amount calculation method | Shimpei SHIMIZU, Takayuki Kobayashi, Masanori Nakamura | 2023-08-29 |
| 11716144 | Optical transmitting system and optical transmitting method | Shimpei SHIMIZU, Takayuki Kobayashi | 2023-08-01 |
| 11710645 | Manufacturing method of mounting structure, and sheet therefor | Eiichi Nomura, Takayuki Hashimoto | 2023-07-25 |
| 11632185 | Signal processing method, signal processing apparatus and communication system | Takayuki Kobayashi, Masanori Nakamura, Fukutaro HAMAOKA | 2023-04-18 |
| 11552714 | Signal separating apparatus and signal separating method | Kohki Shibahara, Takayuki Mizuno, Akira Isoda | 2023-01-10 |
| 11476635 | Optically amplified repeater system and optical amplifier | Takayuki Mizuno, Akira Isoda, Kohki Shibahara, Mitsunori Fukutoku | 2022-10-18 |
| 11438071 | Optical repeater | Hirotaka Ono, Koki Shibahara, Takayuki Mizuno | 2022-09-06 |
| 11438083 | Signal generation device | Hiroshi Yamazaki, Munehiko Nagatani, Hideyuki Nosaka, Masanori Nakamura | 2022-09-06 |
| 11362753 | Optical node device | Hirotaka Ono, Mitsunori Fukutoku, Shingo Kawai | 2022-06-14 |
| 11349564 | Crosstalk estimation system | Akira Isoda, Takayuki Mizuno, Koki Shibahara, Takayuki Kobayashi | 2022-05-31 |
| 11315804 | Manufacturing method of mounting structure | Eiichi Nomura, Takayuki Hashimoto | 2022-04-26 |
| 11283527 | Optical transmitting system, optical transmitting apparatus, optical receiving apparatus and transfer function estimating method | Masanori Nakamura, Fukutaro HAMAOKA, Hiroshi Yamazaki, Munehiko Nagatani, Takayuki Kobayashi | 2022-03-22 |
| 11194219 | Optical modulator | Hiroto Kawakami, Hiroshi Yamazaki | 2021-12-07 |