Patents by Inventor Damaris Davis

Damaris Davis 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: 10850364
    Abstract: A lapping mount tool and a process for lapping a row of head sliders involves affixing the row to a lapping mount tool fixture, actuating each of multiple first actuation pins to set each head slider for lapping to a respective element target stripe height, and simultaneously lapping accordingly. The process may further involve actuating each of multiple second actuation pins to set each head slider for lapping to a respective target wedge angle, and simultaneously lapping accordingly. Each target wedge angle may be achieved by applying a respective angular force to a compliant elastomer adhered to the fixture and to the row, where such angular forces may be applied through at least two flexures interconnecting a rotatable first structural member and a second structural member of the lapping mount tool, wherein the flexures virtually intersect at and define an axis of rotation about which the angular forces are applied.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: December 1, 2020
    Assignee: Western Digital Technologies, Inc.
    Inventors: Darrick T. Smith, Glenn P. Gee, Hicham M. Sougrati, Damaris Davis
  • Patent number: 10702969
    Abstract: A lapping tool assembly includes a mount tool and an interposer structure interposed between actuators and the mount tool, where the interposer includes interposer pins reactively coupled with the actuators such that each interposer pin is configured to receive a translational force from a corresponding actuator and to transmit the force to a corresponding actuation pin of the mount tool. The interposer may include a zero z-axis shift flexure system, and/or a z-axis decoupling flexure system, and/or alignment features, for accurately transmitting the actuation forces to the mount tool, while inhibiting affecting other portions of the mount tool.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: July 7, 2020
    Assignee: Western Digital Technologies, Inc.
    Inventors: Darrick T. Smith, Glenn P. Gee, Hicham M. Sougrati, Damaris Davis
  • Publication number: 20180185978
    Abstract: A lapping tool assembly includes a mount tool and an interposer structure interposed between actuators and the mount tool, where the interposer includes interposer pins reactively coupled with the actuators such that each interposer pin is configured to receive a translational force from a corresponding actuator and to transmit the force to a corresponding actuation pin of the mount tool. The interposer may include a zero z-axis shift flexure system, and/or a z-axis decoupling flexure system, and/or alignment features, for accurately transmitting the actuation forces to the mount tool, while inhibiting affecting other portions of the mount tool.
    Type: Application
    Filed: December 19, 2017
    Publication date: July 5, 2018
    Inventors: Darrick T. Smith, Glenn P. Gee, Hicham M. Sougrati, Damaris Davis
  • Publication number: 20180185977
    Abstract: A lapping mount tool and a process for lapping a row of head sliders involves affixing the row to a lapping mount tool fixture, actuating each of multiple first actuation pins to set each head slider for lapping to a respective element target stripe height, and simultaneously lapping accordingly. The process may further involve actuating each of multiple second actuation pins to set each head slider for lapping to a respective target wedge angle, and simultaneously lapping accordingly. Each target wedge angle may be achieved by applying a respective angular force to a compliant elastomer adhered to the fixture and to the row, where such angular forces may be applied through at least two flexures interconnecting a rotatable first structural member and a second structural member of the lapping mount tool, wherein the flexures virtually intersect at and define an axis of rotation about which the angular forces are applied.
    Type: Application
    Filed: December 19, 2017
    Publication date: July 5, 2018
    Inventors: Darrick T. Smith, Glenn P. Gee, Hicham M. Sougrati, Damaris Davis
  • Patent number: 9881639
    Abstract: A process for lapping a row of head sliders involves fixing the row to a lapping tool fixture, actuating each of multiple force pins to set each head slider for lapping to a respective target wedge angle, and simultaneously lapping accordingly. Each target wedge angle may be achieved by applying a respective torque to a compliant elastomer between each force pin and corresponding head slider, to transfer a pressure gradient corresponding to the torque to the corresponding head slider. Such torques may be applied through at least two wedge angle flexures interconnecting a rotatable box structure and a fixed back wall of a lapping tool, wherein the flexures virtually intersect at and define an axis of rotation about which the torques are applied. The process may further involve actuating each force pin to set each head slider for lapping to a respective reader target stripe height, and simultaneously lapping accordingly.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: January 30, 2018
    Assignee: Western Digital Technologies, Inc.
    Inventors: Damaris Davis, Glenn P. Gee, Darrick T. Smith, Hicham M. Sougrati
  • Publication number: 20170372729
    Abstract: A process for lapping a row of head sliders involves fixing the row to a lapping tool fixture, actuating each of multiple force pins to set each head slider for lapping to a respective target wedge angle, and simultaneously lapping accordingly. Each target wedge angle may be achieved by applying a respective torque to a compliant elastomer between each force pin and corresponding head slider, to transfer a pressure gradient corresponding to the torque to the corresponding head slider. Such torques may be applied through at least two wedge angle flexures interconnecting a rotatable box structure and a fixed back wall of a lapping tool, wherein the flexures virtually intersect at and define an axis of rotation about which the torques are applied. The process may further involve actuating each force pin to set each head slider for lapping to a respective reader target stripe height, and simultaneously lapping accordingly.
    Type: Application
    Filed: June 23, 2016
    Publication date: December 28, 2017
    Inventors: Damaris Davis, Glenn P. Gee, Darrick T. Smith, Hicham M. Sougrati
  • Patent number: 8286334
    Abstract: Various embodiments of the present invention pertain to manufacturing pre-sliders by annealing to saturation. According to one embodiment, pre-sliders are lapped to prepare for air bearing surfaces for the pre-sliders. The pre-sliders are annealed to saturation to level off the amount of overcoat expansion for the pre-sliders.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: October 16, 2012
    Assignee: Hitachi Global Storage Technologies, Netherlands B.V.
    Inventors: Damaris Davis, Hardayal S. Gill, Kenneth D. MacKay, Xiao Z. Wu
  • Publication number: 20080010811
    Abstract: Various embodiments of the present invention pertain to manufacturing pre-sliders by annealing to saturation. According to one embodiment, pre-sliders are lapped to prepare for air bearing surfaces for the pre-sliders. The pre-sliders are annealed to saturation to level off the amount of overcoat expansion for the pre-sliders.
    Type: Application
    Filed: July 14, 2006
    Publication date: January 17, 2008
    Inventors: Damaris Davis, Hardayal S. Gill, Kenneth D. Mackay, Xiao Z. Wu