Stamp, method of manufacturing the same, and imprinting method using the stamp
US9180608B2 · kind B2 · utility
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15Claims
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Assignee
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Key dates
| Filing date | Jun 6, 2012 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Sep 27, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2043/025
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A stamp includes at least one protrusion on a protrusion pattern, and an end portion of the at least one protrusion may have a non-planarized surface. The end portion of the protrusion may have a concave structure, that is, the end portion includes a center region and an edge region, and the edge region is higher than the center region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.