Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9838113 | Optical wavelength multiplexing device, optical transmission device, and abnormality determination method | Kota Ejima, Masahiro Yamakami, Takumi Tochigi, Makoto Yoshimi | 2017-12-05 |
| D796488 | Earphone | — | 2017-09-05 |