Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11942755 | Optical transmission system and filter penalty reduction method | Kohei Saito, Tsutomu Kubo | 2024-03-26 |
| 11329445 | Optical amplifier, optical transmission system, and optical cable failure part measurement method | Kohei Saito, Tsutomu Kubo | 2022-05-10 |
| 10250348 | Optical transport system and resource optimization method | Yoshiaki Yamada, Kengo SHINTAKU, Takuya Ohara, Kei Kitamura, Takafumi HAMANO +3 more | 2019-04-02 |
| 10230457 | Framer and framing method | Kei Kitamura, Takafumi HAMANO, Kaoru Arai, Masahiro Yokota, Hideki Maeda +3 more | 2019-03-12 |
| 10181921 | Framer and framing method | Masahiro Yokota, Takafumi HAMANO, Kaoru Arai, Kei Kitamura, Hideki Maeda +3 more | 2019-01-15 |
| 10063321 | Framer, optical transmission device, and framing method | Kei Kitamura, Takafumi HAMANO, Kaoru Arai, Masahiro Yokota, Hideki Maeda +3 more | 2018-08-28 |