Invention Grant
- Patent Title: Anodized part having a matte black appearance
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Application No.: US16866248Application Date: 2020-05-04
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Publication No.: US11751349B2Publication Date: 2023-09-05
- Inventor: James A. Curran , Aaron D. Paterson , Sonja R. Postak
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: APPLE INC.
- Current Assignee: APPLE INC.
- Current Assignee Address: US CA Cupertino
- Agency: Dorsey & Whitney LLP
- Main IPC: C25D11/14
- IPC: C25D11/14 ; H05K5/04 ; C25D11/16 ; C25D11/24 ; B32B3/12 ; H05K5/02 ; B32B15/04

Abstract:
This application relates to an anodized part. The anodized part includes a metal substrate and an anodized layer overlaying and formed from the metal substrate. The anodized layer includes (i) an external surface that includes randomly distributed light-absorbing features that are capable of absorbing visible light incident upon the external surface, and (ii) pores defined by pore walls, where color particles are infused within the pores. The anodized layer is characterized as having a color having an L* value using a CIE L*a*b* color space that is less than 10.
Public/Granted literature
- US20200383224A1 ANODIZED PART HAVING A MATTE BLACK APPEARANCE Public/Granted day:2020-12-03
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