Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11018763 | Network system, management device, and management method | Tatsuya Tsuzuki, Tomoaki Takeyama | 2021-05-25 |
| 10608775 | Optical transmission apparatus, optical transmission method, and optical transmission system | Norifumi Shukunami, Makoto Hasegawa, Tomohiro Yamauchi, Tomoyuki Kato | 2020-03-31 |
| 10542334 | Optical switch module and optical relay apparatus and path expansion method that use optical switch module | — | 2020-01-21 |
| 10435094 | Method of producing vehicle body assembly | Nobuya Kawasaki, Hisashi Ishitsuka | 2019-10-08 |
| 10405073 | Optical switch module and optical relay apparatus and path expansion method that use optical switch module | — | 2019-09-03 |
| 9274284 | Wavelength selective switch and method for correcting deviation of wavelength | — | 2016-03-01 |
| 9071351 | Optical switch | Tsukasa Takahashi | 2015-06-30 |
| 8798463 | Optical channel monitor and optical transmission apparatus | — | 2014-08-05 |
| 8605357 | Wavelength selective switch and optical transfer device | — | 2013-12-10 |
| 8200053 | Optical switch | — | 2012-06-12 |