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公开(公告)号：US20210109568A1
公开(公告)日：2021-04-15
申请号：US17127948
申请日：2020-12-18
Applicant: Apple Inc.
Inventor： James A. CURRAN , Sonja R. POSTAK , Todd S. MINTZ
Abstract: This application relates to an enclosure for a portable electronic device. The enclosure includes a titanium substrate having a textured surface that includes peaks separated by valleys, where the textured surface is characterized as having (i) an Sdq (root mean square gradient) that is greater than 0.2 micrometers, and (ii) a gloss value that is greater than 90 gloss units as measured at 60 degrees by a gloss meter.
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公开(公告)号：US20200056300A1
公开(公告)日：2020-02-20
申请号：US16104477
申请日：2018-08-17
Applicant: Apple Inc.
Inventor： James A. CURRAN , James A. DEAN , Todd S. MINTZ
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. The anodized layer includes pores, where the pores include (i) dye particles that impart the anodized layer with a color, and (ii) divalent metal cations.
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公开(公告)号：US20190037721A1
公开(公告)日：2019-01-31
申请号：US15662056
申请日：2017-07-27
Applicant: Apple Inc.
Inventor： James A. CURRAN , William A. COUNTS , Todd S. MINTZ
Abstract: Anodized aluminum alloys that are resistant to corrosion are described. According to some embodiments, the anodized aluminum alloys include very small amounts, even trace levels, of corrosion resistant elements with higher Gibbs free energies for oxide formation than aluminum. If the aluminum alloy includes high levels of zinc, the corrosion resistant elements can also have higher Gibbs free energies for oxide formation than zinc. The corrosion resistant elements can accumulate at an interface region of the substrate near the anodic film during the anodizing process, thereby significantly changing the alloy composition in this interface region providing surprising high resistance to certain forms of corrosion. The type and amount of corrosion resistant elements can depend on particular application requirements. In some cases, the anodized aluminum alloys are used as cosmetic appealing housing for consumer electronic products.
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公开(公告)号：US20180073159A1
公开(公告)日：2018-03-15
申请号：US15261699
申请日：2016-09-09
Applicant: Apple Inc.
Inventor： James A. CURRAN , Herng-Jeng JOU , James A. WRIGHT
CPC classification number: C25D11/14 , C25D11/16 , C25D11/243 , C25D11/246 , C25D11/26
Abstract: Coatings for titanium and titanium alloy substrates are described. The coatings can include an aluminum oxide layer and, in some cases, a thin titanium oxide layer. If the coating includes a titanium oxide layer, the aluminum oxide layer can cover and protect the titanium oxide layer from abrasion and scratching. In some examples, the titanium oxide layer has a thickness sufficient to provide a color by thin-film interference, which can be visible through the overlying aluminum oxide layer. In some embodiments, the aluminum oxide layer is colorized using an anodic dye, pigment or metal colorant, which can combine with interference colors of the titanium oxide layer.
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公开(公告)号：US20210010151A1
公开(公告)日：2021-01-14
申请号：US16867200
申请日：2020-05-05
Applicant: Apple Inc.
Inventor： James A. CURRAN , Todd S. MINTZ , Isabel YANG
Abstract: This application relates to a part for a portable electronic device. The part includes a titanium alloy substrate including a network of branching channels. The branching channels include a first channel and a second channel, where the first channel is defined by a first channel wall that extends away from a first opening in the exterior surface, and the second channel is defined by a second channel wall that extends away from a second opening in the first channel wall.
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Patent Agency Ranking
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
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.
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公开(公告)号：US20170088931A1
公开(公告)日：2017-03-30
申请号：US14965716
申请日：2015-12-10
Applicant: Apple Inc.
Inventor： James A. CURRAN , Zechariah D. FEINBERG
CPC classification number: C23C8/20 , C23C8/08 , C23C8/24 , C23C8/28 , C23C8/30 , C23C8/80 , C25D11/026 , C25D11/26
Abstract: A method for providing a surface finish to a metal part includes both diffusion hardening a metal surface to form a diffusion-hardened layer, and oxidizing the diffusion-hardened layer to create an oxide coating thereon. The diffusion-hardened layer can be harder than an internal region of the metal part and might be ceramic, and the oxide coating can have a color that is different from the metal or ceramic, the color being unachievable only by diffusion hardening or only by oxidizing. The metal can be titanium or titanium alloy, the diffusion hardening can include carburizing or nitriding, and the oxidizing can include electrochemical oxidization. The oxide layer thickness can be controlled via the amount of voltage applied during oxidation, with the oxide coating color being a function of thickness. An enhanced hardness profile can extend to a depth of at least 20 microns below the top of the oxide coating.
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公开(公告)号：US20210348294A1
公开(公告)日：2021-11-11
申请号：US16952206
申请日：2020-11-19
Applicant: Apple Inc.
Inventor： Zechariah D. FEINBERG , James A. CURRAN , Todd S. MINTZ , Justin MEMAR-MAKHSOUS
IPC: C25D11/26
Abstract: An enclosure for a portable electronic device can include a titanium substrate defining a textured surface and a nominal surface. The titanium substrate can include a first region that extends above the nominal surface and a second region adjacent to the first region and extending below the nominal surface. A separation distance between an apex of the first region and a bottom of a trough defined by the second region can be at least 1 micrometer. A metal oxide layer can overlay the trough defined by the second region.
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公开(公告)号：US20200383223A1
公开(公告)日：2020-12-03
申请号：US16563719
申请日：2019-09-06
Applicant: Apple Inc.
Inventor： James A. CURRAN , Todd S. MINTZ , Daniel T. MCDONALD
Abstract: This application relates to a method for forming an enclosure for a portable electronic device. The enclosure includes a metal substrate having a first b* value. The method includes forming an anodized layer that overlays and is formed from the metal substrate, wherein the anodized layer has a second b* value that is no greater than 0.3 of the first b* value and no less than 0.3 less than the first *b value.
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公开(公告)号：US20200080219A1
公开(公告)日：2020-03-12
申请号：US16277072
申请日：2019-02-15
Applicant: Apple Inc.
Inventor： James A. CURRAN , Zechariah D. FEINBERG , Sonja R. POSTAK
Abstract: Anodic oxide coatings that provide corrosion resistance to parts having protruding features, such as edges, corners and convex-shaped features, are described. According to some embodiments, the anodic oxide coatings include an inner porous layer and an outer porous layer. The inner layer is adjacent to an underlying metal substrate and is formed under compressive stress anodizing conditions that allow the inner porous layer to be formed generally crack-free. In this way, the inner porous layer acts as a barrier that prevents water or other corrosion-inducing agents from reaching the underlying metal substrate. The outer porous layer can be thicker and harder than the inner porous layer, thereby increasing the overall hardness of the anodic oxide coating.
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