Christopher Robin Fagan

US Patent:

20200017408, Jan 16, 2020

Filed:

Sep 25, 2019

Appl. No.:

16/583204

Inventors:

- Cupertino CA, US
Christopher R. Fagan - Cupertino CA, US
Anubhav Prasad - Worcester MA, US

International Classification:

C03C 23/00
C01F 7/02
B23K 26/50
B01J 19/12

Abstract:

A colored sapphire material and methods for coloring sapphire material using lasers are disclosed. The method for coloring the sapphire material may include positioning the sapphire material over an opaque substrate material, exposing the opaque substrate material to a laser beam passing through the sapphire material to impact the substrate material, and inducing a chemical change in a portion of the sapphire material exposed to the laser beam. The method may also include creating a visible color in the portion of the sapphire material as a result of the chemical change. The colored sapphire material may include a first transparent portion, and a second, colored portion substantially surrounded by the first portion. The second, colored portion may have a chemical composition different than that of the first portion.

US Patent:

20170137321, May 18, 2017

Filed:

Feb 1, 2017

Appl. No.:

15/421466

Inventors:

- Cupertino CA, US
Christopher R. Fagan - Cupertino CA, US
Anubhav Prasad - Worcester MA, US

International Classification:

C03C 23/00
B01J 19/12
B23K 26/00
C01F 7/02

Abstract:

A colored sapphire material and methods for coloring sapphire material using lasers are disclosed. The method for coloring the sapphire material may include positioning the sapphire material over an opaque substrate material, exposing the opaque substrate material to a laser beam passing through the sapphire material to impact the substrate material, and inducing a chemical change in a portion of the sapphire material exposed to the laser beam. The method may also include creating a visible color in the portion of the sapphire material as a result of the chemical change. The colored sapphire material may include a first transparent portion, and a second, colored portion substantially surrounded by the first portion. The second, colored portion may have a chemical composition different than that of the first portion.

US Patent:

20170079153, Mar 16, 2017

Filed:

Sep 10, 2015

Appl. No.:

14/850535

Inventors:

- Cupertino CA, US
Christopher R. Fagan - Cupertino CA, US
Anubhav Prasad - Worcester MA, US

International Classification:

H05K 5/03
B01J 19/12
H05K 5/00

Abstract:

A colored sapphire material and methods for coloring sapphire material using lasers are disclosed. The method for coloring the sapphire material may include positioning the sapphire material over an opaque substrate material, exposing the opaque substrate material to a laser beam passing through the sapphire material to impact the substrate material, and inducing a chemical change in a portion of the sapphire material exposed to the laser beam. The method may also include creating a visible color in the portion of the sapphire material as a result of the chemical change. The colored sapphire material may include a first transparent portion, and a second, colored portion substantially surrounded by the first portion. The second, colored portion may have a chemical composition different than that of the first portion.

US Patent:

20150290764, Oct 15, 2015

Filed:

Mar 4, 2015

Appl. No.:

14/638892

Inventors:

- Cupertino CA, US
Simon Regis Louis Lancaster-Larocque - Gloucester Ontario, CA
Collin D. Chan - Dublin CA, US
Christopher R. Fagan - Pacifica CA, US
Vincent Yan - San Francisco CA, US
IAN S. THEILACKER - West Chester PA, US
Brian K. Miehm - Los Altos CA, US
Shravan Bharadwaj - San Jose CA, US

International Classification:

B24B 49/14
B24B 49/16
B24B 49/12

Abstract:

A method and system for observing and monitoring thermal characteristics of a machining operation, such as a surface finishing operation, performed on a workpiece is disclosed. The surface finishing operation can be performed on the workpiece in order to remove a surface defect, e.g. a parting line, on a surface of the workpiece and/or to provide a mirror-like finish to the workpiece. In one embodiment, an emissive layer is applied to the workpiece to increase a thermal emissivity of the workpiece. In some embodiments, a finishing surface, such as a polishing or buffing wheel, and/or a lubricant used in a finishing operation is monitored. A thermal profile of the surface of the workpiece, finishing surface and/or lubricant can be obtained. The finishing operation can be modified in response to the monitored thermal characteristics to prevent the occurrence of defects and improve the efficacy of the finishing operation.

US Patent:

20150072594, Mar 12, 2015

Filed:

Sep 9, 2013

Appl. No.:

14/022116

Inventors:

- Cupertino CA, US
Kee Han Sim - Suzhou, CN
Christopher R. Fagan - Pacifica CA, US

Assignee:

Apple Inc. - Cupertino CA

International Classification:

B24B 55/00
B08B 13/00
G01N 21/64

US Classification:

451 6, 451 28, 451 64, 451 73

Abstract:

Manufacturing methods are provided. A component may be polished to remove defects thereon. An identifier may be added to the polishing material employed to polish the component. A detector may detect the identifier. For example, the identifier may be a fluroescing material that may illuminate in the presence of a fluorescent light. A determining apparatus may determine a status of the component based on the presence or absence of the identifier. For example, the determining apparatus may determine that the component needs to be re-cleaned based on presence of the identifier. Related systems and computer program products are also provided.