Issued Patents All Time
Showing 1–25 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12389141 | Optical communication system, control method and optical subscriber line terminal apparatus | Haruka NAGOSHI, Hiroaki Katsurai | 2025-08-12 |
| 12381633 | Optical power supply system, optical power supply method and power receiving optical communication apparatus | Ryo Miyatake, Hiroaki Katsurai | 2025-08-05 |
| 12368517 | Optical power supply system, power receiving side optical communication device and power supply method | Kenta ITO, Hiroaki Katsurai | 2025-07-22 |
| 12355493 | Signal converting apparatus and signal converting method | Akihiro Tanabe, Toshiaki SHITABA, Yoichi FUKADA | 2025-07-08 |
| 12353199 | Communication apparatus and temperature monitoring method | Haruka NAGOSHI, Toshinori Hanano, Shun Morishima, Kenta ITO, Masayoshi SEKIGUCHI +3 more | 2025-07-08 |
| 12316385 | Optical power supply system, wakeup method and optical communication device on the receiving side | Hiroaki Katsurai | 2025-05-27 |
| 12308890 | Optical power reception apparatus, communication apparatus and optical power reception method | Kyo MINOGUCHI, Hiroaki Katsurai, Yoichi FUKADA | 2025-05-20 |
| 12294415 | Optical power supply system, power receiving side optical communication device and data transfer method | Kenta ITO, Hiroaki Katsurai | 2025-05-06 |
| 12283990 | Optical communication system | Kyo MINOGUCHI, Toshiaki SHITABA | 2025-04-22 |
| 12267151 | Communication network terminating device, communication system, signal jamming method and signal jamming program | Akihiro Tanabe, Toshiaki SHITABA, Takashi Mitsui | 2025-04-01 |
| 12224795 | Optical transmission system and transmission quality monitoring method | Toshiaki SHITABA, Akihiro Tanabe, Takashi Mitsui | 2025-02-11 |
| 12199671 | Optical transmission system and optical transmission method | Kyo MINOGUCHI, Toshiaki SHITABA | 2025-01-14 |
| 12155411 | Optical transmission apparatus and optical transmission method | Akihiro Tanabe, Takashi Mitsui, Toshiaki SHITABA | 2024-11-26 |
| 11949460 | Optical communication system, optical line termination apparatus and optical communication control method | Kyo MINOGUCHI, Toshiaki SHITABA | 2024-04-02 |
| 11938565 | Laser welding device | Kouji Takemoto, Kazuyoshi Miyamoto, Daichi Sumimori, Hiroshi Hasegawa | 2024-03-26 |
| 11929787 | Optical transmission apparatus and optical transmission method | Akihiro Tanabe, Takashi Mitsui, Toshiaki SHITABA | 2024-03-12 |
| 11865638 | Laser welding device | Kouji Takemoto, Kazuyoshi Miyamoto, Daichi Sumimori, Hiroshi Hasegawa | 2024-01-09 |
| 11863230 | Communication apparatus and error detection method | Kenta ITO, Toshinori Hanano, Shun Morishima, Masayoshi SEKIGUCHI, Takayoshi Tashiro +3 more | 2024-01-02 |
| 10361807 | Station-side device and wavelength control method | Katsuhisa Taguchi, Kota Asaka, Shunji Kimura | 2019-07-23 |
| 10230485 | Station-side device and wavelength changeover method | Kota Asaka, Shunji Kimura | 2019-03-12 |
| 10211944 | Station-side device and communication method | Shigeru Kuwano | 2019-02-19 |
| 10211945 | Station-side device and wavelength changeover monitoring method | — | 2019-02-19 |
| 10009137 | Optical communication system, station-side device, subscriber device, and optical communication method | Shin KANEKO, Shunji Kimura | 2018-06-26 |
| 9871614 | WDM/TDM-PON system and transmission start time correction method thereof | Shin KANEKO, Shunji Kimura | 2018-01-16 |
| 9816835 | Information display device, information display method, and information display program | Katsunori Tagami, Tomonori Nagahama, Yoshihiko Imano, Takeshi Nishiumi, Ichiro Shishido | 2017-11-14 |