Enclosures having an anti-fingerprint surface
US12052835B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2022 |
| Grant date | Jul 30, 2024 |
| Priority date | — |
| Expiry date | Feb 3, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2218/31
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Embodiments of an enclosure including a substrate having an anti-fingerprint surface are disclosed. The anti-fingerprint surface may include a textured surface, a coated surface or a coated textured surface that exhibits a low fingerprint visibility, when a fingerprint is applied to the anti-fingerprint surface. In one or more embodiments, the enclosure exhibits any one of the following attributes (1) radio, and microwave frequency transparency, as defined by a loss tangent of less than 0.03 and at a frequency range of between 15 MHz to 3.0 GHz; (2) infrared transparency; (3) a fracture toughness of greater than 0.6 MPa·m1/2; (4) a 4-point bend strength of greater than 350 MPa; (5) a Vickers hardness of at least 450 kgf/mm2 and a Vickers median/radial crack initiation threshold of at least 5 kgf; (6) a Young's Modulus in the range from about 50 GPa to about 100 GPa; and (7) a thermal conductivity of less than 2.0 W/m° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.