Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7770373 | Core fiber detecting method and device in core yarn spinning | — | 2010-08-10 |
| 7437867 | Core yarn production method and apparatus | — | 2008-10-21 |
| 6655122 | Core yarn manufacturing machine and core yarn manufacturing method | Masazumi Shigeyama | 2003-12-02 |