Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9597766 | Brush unit, a device for brush-polishing that uses the brush unit, a system for brush-polishing, and a method for brush-polishing | Tsuguhito Hayashi, Youichiro Hiratsuka | 2017-03-21 |