Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11976962 | Optical-fiber path searching method, optical-fiber path searching system, signal processing device, and program | Yoshifumi Wakisaka, Daisuke IIDA, Kunihiro Toge | 2024-05-07 |
| 11920974 | Vibration distribution measuring system, vibration waveform analysis method, vibration waveform analyzing device, and analyzing program | Tatsuya Okamoto, Daisuke IIDA, Kunihiro Toge | 2024-03-05 |
| 11644347 | Manhole position specification method and manhole position specification system | Tatsuya Okamoto, Daisuke IIDA, Hiroyuki OSHIDA | 2023-05-09 |
| 11575981 | Simulation signal light generation device and simulation signal light generation method | Takui UEMATSU, Hidenobu HIROTA, Hiroyuki Iida | 2023-02-07 |
| 11519817 | Raman gain efficiency distribution testing method, and Raman gain efficiency distribution testing device | Atsushi Nakamura, Keiji Okamoto | 2022-12-06 |
| 11402295 | Optical fiber loss measurement device and optical fiber loss measurement method | Tomokazu Oda, Hiroshi Takahashi, Kunihiro Toge | 2022-08-02 |
| 11385082 | Environmental characteristic measurement device and environmental characteristic measurement method | Hiroshi Takahashi, Kunihiro Toge, Tomokazu Oda | 2022-07-12 |
| 11385127 | Optical frequency multiplexing coherent OTDR, testing method, signal processing device, and program | Hiroyuki Iida, Yusuke KOSHIKIYA, Hidenobu HIROTA, Takui UEMATSU | 2022-07-12 |
| 11385128 | Optical device loss measurement apparatus, and optical device loss measurement method | Hiroshi Takahashi, Kunihiro Toge, Tomokazu Oda | 2022-07-12 |
| 11385424 | Optical fiber side input/output device and design method | Takui UEMATSU, Hidenobu HIROTA, Hiroyuki Iida | 2022-07-12 |
| 11378489 | Propagation characteristic analysis device and propagation characteristic analysis method | Hiroshi Takahashi, Tomokazu Oda, Kunihiro Toge | 2022-07-05 |
| 11300455 | Optical spectral line width calculation method, device, and program | Shingo Ono, Kunihiro Toge | 2022-04-12 |
| 11300731 | Optical fiber lateral input/output device | Takui UEMATSU, Hidenobu HIROTA, Hiroyuki Iida | 2022-04-12 |
| 11280668 | Distributed optical fiber vibration measurement device and distributed optical fiber vibration measurement method | Kunihiro Toge, Daisuke IIDA, Shingo Ono, Yoshifumi Wakisaka | 2022-03-22 |
| 11199473 | Optical pulse testing device and optical pulse testing method | Hiroyuki Iida, Yusuke KOSHIKIYA, Hidenobu HIROTA, Takui UEMATSU | 2021-12-14 |
| 11112332 | Optical fiber monitoring method, and optical fiber monitoring system | Yusuke KOSHIKIYA, Atsushi Nakamura, Kazutaka NOTO | 2021-09-07 |