Rubbing apparatus
US8840533B2 · kind B2 · utility
2Cited by
18References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2011 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Jul 25, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1303
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A rubbing apparatus including a rubbing roller including an opening portion at a region of a circumferential surface of the rubbing roller, an outlet portion connected to the opening portion and open to an outside of the rubbing roller, and a groove portion connected to the opening portion and penetrating into the rubbing roller along the opening portion; and a rubbing cloth substantially surrounding the circumferential surface of the rubbing roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.