Patents by Inventor Srikanth Kamireddi

Srikanth Kamireddi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10691169
    Abstract: A cover for an electronic device and methods of forming a cover is disclosed. The electronic device may include a housing, and a cover coupled to the housing. The cover may have an inner surface having at least one of an intermediate polish and a final polish, a groove formed on the inner surface, and an outer surface positioned opposite the inner surface. The outer surface may have at least one of the intermediate polish and the final polish. The cover may also have a rounded perimeter portion formed between the inner surface and the outer surface. The rounded perimeter portion may be positioned adjacent the groove. The method for forming the cover may include performing a first polishing process on the sapphire component using a polishing tool, and performing a second polishing process on the groove of the sapphire component forming the cover using blasting media.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: June 23, 2020
    Assignee: APPLE INC.
    Inventors: Jeffrey C. Mylvaganam, Erik G. de Jong, Dale N. Memering, Xiao Bing Cai, Palaniappan Chinnakaruppan, Jong Kong Lee, Srikanth Kamireddi, Sawako Kamei, Feng Min, Jing Zhang, Xiang Du, Sai Feng Liu
  • Patent number: 10144107
    Abstract: Ultrasonic polishing systems and methods of polishing brittle components for electronic devices using ultrasonic polishing systems are disclosed. The ultrasonic polishing system may include an ultrasonic driver and a polishing head operatively coupled to the ultrasonic driver. The ultrasonic drive may have a surface shape that corresponds to a non-planar feature formed in the brittle component. The ultrasonic polishing system may also include an abrasive slurry configured to be disposed between the non-planar feature of the brittle component and the polishing head. The ultrasonic driver may be configured to displace the polishing head toward and away from the non-planar feature formed in the brittle component.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: December 4, 2018
    Assignee: APPLE INC.
    Inventors: Srikanth Kamireddi, Alexander M. Hoffman
  • Patent number: 10112278
    Abstract: A ceramic component and methods for making a ceramic component are disclosed. In particular, a sapphire component may be polished by positioning a compliant pad adjacent to a surface of the sapphire component. An abrasive slurry may be disposed or introduced between the compliant pad and the surface. The compliant pad may be moved with respect to the surface to produce a polished surface. The abrasive slurry may include a liquid component having a high pH level and medium-sized abrasive particulates.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: October 30, 2018
    Assignee: APPLE INC.
    Inventors: Palaniappan Chinnakaruppan, Srikanth Kamireddi
  • Publication number: 20180284843
    Abstract: A cover for an electronic device and methods of forming a cover is disclosed. The electronic device may include a housing, and a cover coupled to the housing. The cover may have an inner surface having at least one of an intermediate polish and a final polish, a groove formed on the inner surface, and an outer surface positioned opposite the inner surface. The outer surface may have at least one of the intermediate polish and the final polish. The cover may also have a rounded perimeter portion formed between the inner surface and the outer surface. The rounded perimeter portion may be positioned adjacent the groove. The method for forming the cover may include performing a first polishing process on the sapphire component using a polishing tool, and performing a second polishing process on the groove of the sapphire component forming the cover using blasting media.
    Type: Application
    Filed: May 9, 2018
    Publication date: October 4, 2018
    Inventors: Jeffrey C. Mylvaganam, Erik G. de Jong, Dele N. Memering, Xiao Bing Cai, Palaniappan Chinnakaruppan, Jong Kong Lee, Srikanth Kamireddi, Sawako Kamei, Feng Min, Jing Zhang, Xiang Du, Sai Feng Liu
  • Patent number: 10065289
    Abstract: A polishing system and method for polishing a channel formed within a component is disclosed. The polishing system may include a tooling element operable to be positioned within a recess formed partially through a component. The tooling element may include an outer surface having a geometry corresponding to a geometry of the recess formed in the component. The tooling element forms a channel between the recess of the component and the tooling element when positioned in the recess. The system may also include a first member in fluid communication with a first opening of the channel, and a second member in fluid communication with a second opening of the channel. The second opening may be in fluid communication with the first opening via the channel. Additionally, the first and second member may be configured to continuously vary a pressure within the channel to move an abrasive slurry within the channel.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: September 4, 2018
    Assignee: Apple Inc.
    Inventors: Palaniappan Chinnakaruppan, Srikanth Kamireddi
  • Patent number: 9977464
    Abstract: A cover for an electronic device and methods of forming a cover is disclosed. The electronic device may include a housing, and a cover coupled to the housing. The cover may have an inner surface having at least one of an intermediate polish and a final polish, a groove formed on the inner surface, and an outer surface positioned opposite the inner surface. The outer surface may have at least one of the intermediate polish and the final polish. The cover may also have a rounded perimeter portion formed between the inner surface and the outer surface. The rounded perimeter portion may be positioned adjacent the groove. The method for forming the cover may include performing a first polishing process on the sapphire component using a polishing tool, and performing a second polishing process on the groove of the sapphire component forming the cover using blasting media.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: May 22, 2018
    Assignee: APPLE INC.
    Inventors: Jeffrey C. Mylvaganam, Erik G. de Jong, Dale N. Memering, Xiao Bing Cai, Palaniappan Chinnakaruppan, Jong Kong Lee, Srikanth Kamireddi, Sawako Kamei, Feng Min, Jing Zhang, Xiang Du, Sai Feng Liu
  • Publication number: 20170087683
    Abstract: A ceramic component and methods for making a ceramic component are disclosed. In particular, a sapphire component may be polished by positioning a compliant pad adjacent to a surface of the sapphire component. An abrasive slurry may be disposed or introduced between the compliant pad and the surface. The compliant pad may be moved with respect to the surface to produce a polished surface. The abrasive slurry may include a liquid component having a high pH level and medium-sized abrasive particulates.
    Type: Application
    Filed: December 30, 2015
    Publication date: March 30, 2017
    Inventors: Palaniappan Chinnakaruppan, Srikanth Kamireddi
  • Publication number: 20170087687
    Abstract: Ultrasonic polishing systems and methods of polishing brittle components for electronic devices using ultrasonic polishing systems are disclosed. The ultrasonic polishing system may include an ultrasonic driver and a polishing head operatively coupled to the ultrasonic driver. The ultrasonic drive may have a surface shape that corresponds to a non-planar feature formed in the brittle component. The ultrasonic polishing system may also include an abrasive slurry configured to be disposed between the non-planar feature of the brittle component and the polishing head. The ultrasonic driver may be configured to displace the polishing head toward and away from the non-planar feature formed in the brittle component.
    Type: Application
    Filed: September 29, 2016
    Publication date: March 30, 2017
    Inventors: Srikanth Kamireddi, Alexander M. Hoffman
  • Publication number: 20160062405
    Abstract: A cover for an electronic device and methods of forming a cover is disclosed. The electronic device may include a housing, and a cover coupled to the housing. The cover may have an inner surface having at least one of an intermediate polish and a final polish, a groove formed on the inner surface, and an outer surface positioned opposite the inner surface. The outer surface may have at least one of the intermediate polish and the final polish. The cover may also have a rounded perimeter portion formed between the inner surface and the outer surface. The rounded perimeter portion may be positioned adjacent the groove. The method for forming the cover may include performing a first polishing process on the sapphire component using a polishing tool, and performing a second polishing process on the groove of the sapphire component forming the cover using blasting media.
    Type: Application
    Filed: August 26, 2015
    Publication date: March 3, 2016
    Inventors: Jeffrey C. Mylvaganam, Erik G. de Jong, Dale N. Memering, Xiao Bing Cai, Palaniappan Chinnakaruppan, Jong Kong Lee, Srikanth Kamireddi, Sawako Kamei, Feng Min, Jing Zhang, Xiang Du, Sai Feng Liu
  • Publication number: 20160059383
    Abstract: A polishing system and method for polishing a channel formed within a component is disclosed. The polishing system may include a tooling element operable to be positioned within a recess formed partially through a component. The tooling element may include an outer surface having a geometry corresponding to a geometry of the recess formed in the component. The tooling element forms a channel between the recess of the component and the tooling element when positioned in the recess. The system may also include a first member in fluid communication with a first opening of the channel, and a second member in fluid communication with a second opening of the channel. The second opening may be in fluid communication with the first opening via the channel. Additionally, the first and second member may be configured to continuously vary a pressure within the channel to move an abrasive slurry within the channel.
    Type: Application
    Filed: September 2, 2015
    Publication date: March 3, 2016
    Inventors: Palaniappan Chinnakaruppan, Srikanth Kamireddi
  • Patent number: 9134260
    Abstract: The present invention consists of an x-ray goniometer which is positioned directly adjacent to processing machines used in the cutting, milling, drilling and shaping of crystal boules and crystal ingots, used in conjunction with an adjustable tilt platform capable of pitch, yaw and roll movement, to allow in-situ measurement and automatic adjustment of crystal orientation with respect to the processing machine. The goniometer may be secured to either the tool itself or a portion of the machine which is adjacent the piece to be worked. Various embodiments include an x-ray goniometer and adjustable tilt platform incorporated into a core drilling machine, wire saw, surface grinder, polishing apparatus, or orientation flat or notch grinder.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: September 15, 2015
    Assignee: Rubicon Technology, Inc.
    Inventor: Srikanth Kamireddi
  • Publication number: 20150092920
    Abstract: The present invention consists of an x-ray goniometer which is positioned directly adjacent to processing machines used in the cutting, milling, drilling and shaping of crystal boules and crystal ingots, used in conjunction with an adjustable tilt platform capable of pitch, yaw and roll movement, to allow in-situ measurement and automatic adjustment of crystal orientation with respect to the processing machine. The goniometer may be secured to either the tool itself or a portion of the machine which is adjacent the piece to be worked. Various embodiments include an x-ray goniometer and adjustable tilt platform incorporated into a core drilling machine, wire saw, surface grinder, polishing apparatus, or orientation flat or notch grinder.
    Type: Application
    Filed: December 8, 2014
    Publication date: April 2, 2015
    Applicant: Rubicon Technology, Inc.
    Inventor: Srikanth KAMIREDDI
  • Patent number: 8934606
    Abstract: The invention includes an x-ray goniometer positionable directly adjacent to processing machines used in the cutting, milling, drilling and shaping of crystal boules and crystal ingots, used in conjunction with an adjustable tilt platform capable of pitch, yaw and roll movement, allowing in-situ measurement and automatic adjustment of crystal orientation with respect to the processing machine. The goniometer may be secured to the tool or a portion of the machine which is adjacent the piece to be worked. Various embodiments include an x-ray goniometer and adjustable tilt platform incorporated into a core drilling machine, saw, surface grinder, polishing apparatus, or orientation flat or notch grinder. Incorporating an x-ray goniometer and adjustable tilt platform directly into a crystal processing machine results in a decrease in overall processing time and labor, and a significant increase in precision when processing crystal ingots into a final product, such as a notched wafer.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: January 13, 2015
    Assignee: Rubicon Technology, Inc.
    Inventor: Srikanth Kamireddi
  • Publication number: 20130028385
    Abstract: The invention includes an x-ray goniometer positionable directly adjacent to processing machines used in the cutting, milling, drilling and shaping of crystal boules and crystal ingots, used in conjunction with an adjustable tilt platform capable of pitch, yaw and roll movement, allowing in-situ measurement and automatic adjustment of crystal orientation with respect to the processing machine. The goniometer may be secured to the tool or a portion of the machine which is adjacent the piece to be worked. Various embodiments include an x-ray goniometer and adjustable tilt platform incorporated into a core drilling machine, saw, surface grinder, polishing apparatus, or orientation flat or notch grinder. Incorporating an x-ray goniometer and adjustable tilt platform directly into a crystal processing machine results in a decrease in overall processing time and labor, and a significant increase in precision when processing crystal ingots into a final product, such as a notched wafer.
    Type: Application
    Filed: August 2, 2012
    Publication date: January 31, 2013
    Applicant: RUBICON TECHNOLOGY, INC.
    Inventor: Srikanth KAMIREDDI
  • Patent number: 8259901
    Abstract: The present invention consists of an x-ray goniometer which is positioned directly adjacent to processing machines used in the cutting, milling, drilling and shaping of crystal boules and crystal ingots, used in conjunction with an adjustable tilt platform capable of pitch, yaw and roll movement, to allow in-situ measurement and automatic adjustment of crystal orientation with respect to the processing machine. The goniometer may be secured to either the tool itself or a portion of the machine which is adjacent the piece to be worked. Various embodiments include an x-ray goniometer and adjustable tilt platform incorporated into a core drilling machine, wire saw, surface grinder, polishing apparatus, or orientation flat or notch grinder.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: September 4, 2012
    Assignee: Rubicon Technology, Inc.
    Inventor: Srikanth Kamireddi