Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12242111 | Optical multiplexing/demultiplexing method, optical multiplexing/demultiplexing circuit, and manufacturing method thereof | Hidenobu HIROTA, Hiroyuki Iida | 2025-03-04 |
| 12206460 | Optical network system, operating method of optical network system, and optical line terminator | Hidenobu HIROTA, Hiroyuki Iida | 2025-01-21 |
| 12107624 | Termination determination device and termination determination method | Hiroyuki Iida, Hidenobu HIROTA | 2024-10-01 |
| 12066666 | Optical fiber lateral input/output device | Hidenobu HIROTA, Hiroyuki Iida, Naotsugu Ambe | 2024-08-20 |
| 12061131 | Judgment device and judgment method | Hiroyuki Iida, Sachi Tsujimura, Hidenobu HIROTA, Naotsugu Ambe | 2024-08-13 |
| 11886012 | Optical fiber lateral input/output device | Hidenobu HIROTA, Hiroyuki Iida, Naotsugu Ambe | 2024-01-30 |
| 11880069 | Optical fiber side input and output device | Hiroyuki Iida, Hidenobu HIROTA, Naotsugu Ambe | 2024-01-23 |
| 11747564 | Manufacturing method and manufacturing apparatus of optical splitters | Hidenobu HIROTA, Hiroyuki Iida, Takashi EBINE | 2023-09-05 |
| 11711144 | Optical fiber display system and optical fiber switching method | Hidenobu HIROTA, Hiroyuki Iida, Naotsugu Ambe | 2023-07-25 |
| 11683091 | Communication apparatus identification device, optical fiber connection system, communication apparatus identification method, and optical fiber connection method | Hidenobu HIROTA, Hiroyuki Iida, Naotsugu Ambe | 2023-06-20 |
| 11575981 | Simulation signal light generation device and simulation signal light generation method | Tetsuya Manabe, Hidenobu HIROTA, Hiroyuki Iida | 2023-02-07 |
| 11385127 | Optical frequency multiplexing coherent OTDR, testing method, signal processing device, and program | Hiroyuki Iida, Tetsuya Manabe, Yusuke KOSHIKIYA, Hidenobu HIROTA | 2022-07-12 |
| 11385424 | Optical fiber side input/output device and design method | Hidenobu HIROTA, Hiroyuki Iida, Tetsuya Manabe | 2022-07-12 |
| 11349563 | Communication monitor method and communication monitor device | Hiroyuki Iida, Hidenobu HIROTA, Naotsugu Ambe | 2022-05-31 |
| 11300731 | Optical fiber lateral input/output device | Hidenobu HIROTA, Hiroyuki Iida, Tetsuya Manabe | 2022-04-12 |
| 11199473 | Optical pulse testing device and optical pulse testing method | Hiroyuki Iida, Tetsuya Manabe, Yusuke KOSHIKIYA, Hidenobu HIROTA | 2021-12-14 |