US Patent No. 11,032,930

TITANIUM SURFACES WITH IMPROVED COLOR CONSISTENCY AND RESISTANCE TO COLOR CHANGE


Patent No. 11,032,930
Issue Date June 08, 2021
Title Titanium Surfaces With Improved Color Consistency And Resistance To Color Change
Inventorship James A. Curran, Sunnyvale, CA (US)
Todd S. Mintz, San Jose, CA (US)
Daniel T. McDonald, San Jose, CA (US)
Assignee APPLE INC., Cupertino, CA (US)

Claim of US Patent No. 11,032,930

1. An enclosure for a portable electronic device, the enclosure comprising:an anodized layer that overlays and is formed from a substrate comprising titanium, the anodized layer having a thickness between 2 nanometers and 6 nanometers, a b* value that is between 3 and 8, and an L* value that is above 60.