Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10466426 | Optical fiber drawer structure and optical module | Etsuji Katayama, Masakazu Yoshihara | 2019-11-05 |
| 10361532 | Semiconductor laser module and semiconductor laser module manufacturing method | Etsuji Katayama, Toshio Kimura | 2019-07-23 |
| 10234645 | Semiconductor laser module and three-dimensional laminating and shaping apparatus | Etsuji Katayama, Hajime Mori | 2019-03-19 |