公开(公告)号：US20180080138A1

公开(公告)日：2018-03-22

申请号：US15410564

申请日：2017-01-19

Applicant: Apple Inc.

Inventor： James A. CURRAN ,  Kevin B. MICKLEWRIGHT ,  Karin H. RASMUSSEN

IPC: C25D11/24 ,  H05K5/04 ,  H05K5/02

CPC classification number: C25D11/243 ,  C25D11/246

Abstract: Dyed anodic oxides having modified dye concentration profiles, and processes for forming the same, are described. The modified dye concentration profiles can be characterized as having a peak of dye concentration beyond at least a specified distance from an outer surface of an anodic oxide. The modified dyed anodic oxides less prone to discoloration, color fading and other cosmetic defects compared to conventionally dyed anodic oxides. The dyed anodic oxides are well suited for implementation on metal surfaces of consumer products, such as consumer electronic products.

公开(公告)号：US20180049337A1

公开(公告)日：2018-02-15

申请号：US15233728

申请日：2016-08-10

Applicant: Apple Inc.

Inventor： James A. CURRAN ,  Karin H. RASMUSSEN ,  Zechariah D. FEINBERG

IPC: H05K5/02 ,  H05K5/04 ,  C23C14/10 ,  C25D11/24

CPC classification number: C25D11/243 ,  C25D11/04 ,  C25D11/08 ,  C25D11/14 ,  C25D11/22 ,  C25D11/24 ,  C25D11/246 ,  C25D11/26 ,  C25D11/30

Abstract: Colored oxide coatings having multiple oxide layers are described. Processes for forming the multilayer oxide coating can include converting a portion of a metal substrate to a primary oxide layer, coloring the primary oxide layer, and depositing a secondary oxide layer on the primary oxide layer. The primary oxide layer and the secondary oxide layer can be at least partially transparent such that a texture of an underlying metal substrate surface is visible through the multilayer oxide coating. A top surface of the secondary oxide layer can be polished to a high gloss to give the multilayer oxide coating an appearance of depth.

公开(公告)号：US20200173050A1

公开(公告)日：2020-06-04

申请号：US16360871

申请日：2019-03-21

Applicant: Apple Inc.

Inventor： James A. CURRAN ,  Sonja R. POSTAK ,  Karin H. RASMUSSEN ,  James A. DEAN

IPC: C25D11/24 ,  C25D11/34

Abstract: This application relates to a method for forming an enclosure for a portable electronic device, the enclosure including a metal substrate that is overlaid by an anodized layer. The method includes dyeing the anodized layer by exposing pores of the anodized layer to a dye. The method further includes sealing the dye within the pores by exposing the anodized layer to a zinc-based sealing solution, where an external surface of the anodized layer having the pores that are sealed includes an amount of zinc between about 3 wt % to about 6 wt %.

公开(公告)号：US20190382911A1

公开(公告)日：2019-12-19

申请号：US16360851

申请日：2019-03-21

Applicant: Apple Inc.

Inventor： James A. CURRAN ,  Rohit G. PURANIK ,  Shi Hua ZHANG ,  James A. DEAN ,  Karin H. RASMUSSEN

IPC: C25D11/24 ,  C25D11/14 ,  C25D11/34

Abstract: This application relates to an enclosure for a portable electronic device. The enclosure includes an aluminum alloy substrate and an anodized layer overlaying and formed from the aluminum alloy substrate, wherein the anodized layer has an external surface that has a concentration of zinc that is between about 3 wt % to about 7 wt %.