Issued Patents 2023
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11828676 | Optical pulse reflectometry and optical pulse reflectometer | Atsushi Nakamura, Keiji Okamoto | 2023-11-28 |
| 11823330 | Detection device, detection method and detection program for linear structure | Masaaki Inoue, Hitoshi Niigaki, Yukihiro Goto, Shigehiro MATSUDA, Toshiya Ohira +2 more | 2023-11-21 |
| 11802809 | Backscattering optical amplification device, optical pulse testing device, backscattering optical amplification method and optical pulse testing method | Keiji Okamoto, Atsushi Nakamura | 2023-10-31 |
| 11788909 | Measuring device and measuring method using tape core wire | Atsushi Nakamura, Daisuke IIDA, Tatsuya Okamoto, Tomokazu Oda, Yoshifumi Wakisaka | 2023-10-17 |
| 11788928 | Light intensity distribution measurement method and light intensity distribution measurement device | Tomokazu Oda, Yoshifumi Wakisaka, Daisuke IIDA | 2023-10-17 |
| 11754465 | Optical pulse testing device and optical pulse testing method | Atsushi Nakamura, Nazuki HONDA, Daisuke IIDA, Keiji Okamoto | 2023-09-12 |
| 11750283 | Optical fiber route search method, optical fiber route search device and program | Daisuke IIDA, Nazuki HONDA, Tatsuya Okamoto, Yoshifumi Wakisaka | 2023-09-05 |
| 11747294 | Water immersion detection device and water immersion detection method for detecting inundation of optical fiber | Kazutaka NOTO, Nazuki HONDA | 2023-09-05 |
| 11719599 | Optical fiber test method and optical fiber test device | Atsushi Nakamura, Tomokazu Oda, Daisuke IIDA, Yoshifumi Wakisaka | 2023-08-08 |
| 11644347 | Manhole position specification method and manhole position specification system | Tatsuya Okamoto, Daisuke IIDA, Tetsuya Manabe | 2023-05-09 |
| 11598692 | Optical pulse testing method and optical pulse testing device | Atsushi Nakamura, Keiji Okamoto | 2023-03-07 |