Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11199676 | Manufacturing method of optical fiber cable and manufacturing apparatus of optical fiber cable | Kouji Tomikawa, Ken Osato | 2021-12-14 |
| 11181706 | Optical fiber cable | Tomoaki Kaji, Kouji Tomikawa, Ken Osato | 2021-11-23 |
| 11002928 | Optical fiber cable | Mizuki Isaji, Masatoshi Ohno, Kouji Tomikawa, Akira Namazue, Ken Osato +3 more | 2021-05-11 |