Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12399079 | Devices and methods for measuring the amount of frequency modulation | Tatsuya Okamoto, Daisuke IIDA, Yusuke KOSHIKIYA | 2025-08-26 |
| 12388527 | Brillouin gain spectrum distribution measurement method and equipment | Tomokazu Oda, Daisuke IIDA, Atsushi Nakamura, Yusuke KOSHIKIYA | 2025-08-12 |
| 12313489 | Optical fiber measurement system, optical fiber measurement method, control arithmetic device, and program | Tomokazu Oda, Atsushi Nakamura, Daisuke IIDA, Yusuke KOSHIKIYA | 2025-05-27 |
| 12313493 | Mode field diameter measuring method and mode field diameter measuring device | Atsushi Nakamura, Yusuke KOSHIKIYA | 2025-05-27 |
| 12298159 | Technique for analyzing a spectrum of backscattered light in an optical fiber | Tatsuya Okamoto, Daisuke IIDA, Yusuke KOSHIKIYA | 2025-05-13 |
| 12152957 | Inundation detection system and inundation detection method | Atsushi Nakamura, Hiroyuki OSHIDA | 2024-11-26 |
| 12007298 | Fiber optic test methods, fiber optic test equipment, and programs | Kazutaka NOTO, Hiroyuki OSHIDA | 2024-06-11 |
| 11754465 | Optical pulse testing device and optical pulse testing method | Atsushi Nakamura, Daisuke IIDA, Hiroyuki OSHIDA, Keiji Okamoto | 2023-09-12 |
| 11747294 | Water immersion detection device and water immersion detection method for detecting inundation of optical fiber | Kazutaka NOTO, Hiroyuki OSHIDA | 2023-09-05 |
| 11750283 | Optical fiber route search method, optical fiber route search device and program | Daisuke IIDA, Tatsuya Okamoto, Yoshifumi Wakisaka, Hiroyuki OSHIDA | 2023-09-05 |