Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12385806 | Power coupling coefficient measuring method and power coupling coefficient measuring device | Atsushi Nakamura, Daisuke IIDA, Hiroyuki OSHIDA | 2025-08-12 |
| 12388527 | Brillouin gain spectrum distribution measurement method and equipment | Daisuke IIDA, Atsushi Nakamura, Yusuke KOSHIKIYA, Nazuki HONDA | 2025-08-12 |
| 12320725 | Several mode fiber test method and several mode fiber test device | Atsushi Nakamura, Daisuke IIDA, Hiroyuki OSHIDA | 2025-06-03 |
| 12313489 | Optical fiber measurement system, optical fiber measurement method, control arithmetic device, and program | Atsushi Nakamura, Daisuke IIDA, Yusuke KOSHIKIYA, Nazuki HONDA | 2025-05-27 |
| 11879803 | Optical fiber evaluation method and optical fiber evaluation apparatus | Hiroyuki OSHIDA, Daisuke IIDA, Atsushi Nakamura, Yuto SAGAE | 2024-01-23 |
| 11788909 | Measuring device and measuring method using tape core wire | Atsushi Nakamura, Daisuke IIDA, Hiroyuki OSHIDA, Tatsuya Okamoto, Yoshifumi Wakisaka | 2023-10-17 |
| 11788928 | Light intensity distribution measurement method and light intensity distribution measurement device | Yoshifumi Wakisaka, Daisuke IIDA, Hiroyuki OSHIDA | 2023-10-17 |
| 11719599 | Optical fiber test method and optical fiber test device | Atsushi Nakamura, Daisuke IIDA, Hiroyuki OSHIDA, Yoshifumi Wakisaka | 2023-08-08 |
| 11402295 | Optical fiber loss measurement device and optical fiber loss measurement method | Hiroshi Takahashi, Kunihiro Toge, Tetsuya Manabe | 2022-08-02 |
| 11385082 | Environmental characteristic measurement device and environmental characteristic measurement method | Hiroshi Takahashi, Kunihiro Toge, Tetsuya Manabe | 2022-07-12 |
| 11385128 | Optical device loss measurement apparatus, and optical device loss measurement method | Hiroshi Takahashi, Kunihiro Toge, Tetsuya Manabe | 2022-07-12 |
| 11378489 | Propagation characteristic analysis device and propagation characteristic analysis method | Hiroshi Takahashi, Kunihiro Toge, Tetsuya Manabe | 2022-07-05 |
| 10686529 | Optical communication system and optical communication method | Atsushi Okamoto, Taketoshi TAKAHATA, Shusaku Noda, Naoya Wada | 2020-06-16 |