Patents by Inventor Devendra Chhabra

Devendra Chhabra 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).

  • Thermal protrusion reduction in magnet heads by utilizing heat sink layers
    Publication number: 20050254173
    Abstract: A magnetic read/write head and slider assembly and method for forming said magnetic read/write head and slider assembly, wherein said assembly has improved heat spreading and dissipation properties and exhibits significantly reduced thermal protrusion during operation. The method consists of the formation of a heat sink layer on a portion of either the upper pole yoke or the lower magnetic pole of the writer.
    Type: Application
    Filed: June 27, 2005
    Publication date: November 17, 2005
    Inventors: Glen Garfunkel, Moris Dovek, Devendra Chhabra
  • Thermal protrusion reduction in magnet heads by utilizing a heat-spreading pad
    Publication number: 20050237667
    Abstract: A magnetic read/write head and slider assembly and method for forming said magnetic read/write head and slider assembly, wherein said assembly has improved heat spreading and dissipation properties and exhibits significantly reduced thermal protrusion during operation. The method of formation is simple and efficient, involving only the extension of one of the conductive mounting pads so that it is in thermal contact with a portion of the slider assembly surface that is over the read/write element.
    Type: Application
    Filed: June 30, 2005
    Publication date: October 27, 2005
    Inventors: Devendra Chhabra, Rod Lee, Glen Garfunkel, Moris Dovek, Cherng-Chyi Han
  • Thermal protrusion reduction in magnet heads by utilizing heat sink layers
    Patent number: 6914750
    Abstract: A magnetic read/write head and slider assembly and method for forming the magnetic read/write head and slider assembly, wherein the assembly has improved heat spreading and dissipation properties and exhibits significantly reduced thermal protrusion during operation. The method consists of the formation of a heat sink layer on a portion of either the upper pole yoke or the lower magnetic pole of the writer.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: July 5, 2005
    Assignee: Headway Technologies, Inc.
    Inventors: Glen Garfunkel, Moris Dovek, Devendra Chhabra
  • Method to produce stress-free optical waveguides to reduce stress-induced birefringence in planar lightwave circuit (PLC) devices
    Publication number: 20050013576
    Abstract: A method of forming a waveguide comprising the following steps. A structure is provided. An underclad layer is formed over the structure and a core layer is formed over the underclad layer. Patterning: the core layer to form the waveguide; and partially into the underclad layer, forming an overetched underclad layer having a projection underneath the waveguide. The waveguide having stress gradients and the overetched underclad layer having stress gradients.
    Type: Application
    Filed: July 14, 2003
    Publication date: January 20, 2005
    Inventors: Devendra Chhabra, Grace Gorman
  • Thermal protrusion reduction in magnet heads by utilizing heat sink layers
    Publication number: 20030067717
    Abstract: A magnetic read/write head and slider assembly and method for forming said magnetic read/write head and slider assembly, wherein said assembly has improved heat spreading and dissipation properties and exhibits significantly reduced thermal protrusion during operation. The method consists of the formation of a heat sink layer on a portion of either the upper pole yoke or the lower magnetic pole of the writer.
    Type: Application
    Filed: May 21, 2002
    Publication date: April 10, 2003
    Applicant: Headway Technologies, Inc.
    Inventors: Glen Garfunkel, Moris Dovek, Devendra Chhabra