Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11131041 | Apparatus for manufacturing open carbon fiber superfine yarn | Hiroaki Tsukamoto | 2021-09-28 |
| 11060211 | Twisted yarn, opened yarn, carbon fiber-covered twisted yarn, and method for manufacturing these | Hiroaki Tsukamoto | 2021-07-13 |