Patents by Inventor Rick P. Freeman

Rick P. Freeman 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).

  • Flexible circuit for concurrently active recording heads
    Patent number: 9489971
    Abstract: A system includes a first preamplifier, a second preamplifier and a flex circuit. The first preamplifier is configured to be connected to a first plurality of recording heads. The second preamplifier is configured to be connected to a second plurality of recording heads. At least one of the first plurality of recording heads and at least one of the second plurality of recording heads are configured to concurrently perform read and or write operations. The flex circuit is a single flex circuit configured to connect the first and second preamplifiers to the plurality of recording heads.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: November 8, 2016
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Karsten Klarqvist, Andrew R. Motzko, Rick P. Freeman
  • Head-disc interface (HDI) modal response monitoring
    Patent number: 7742255
    Abstract: Apparatus and method for head-disc interface (HDI) modal response monitoring. A sensing element disposed on a rigid actuator arm is mechanically impedance matched to a head-disc interface (HDI) supported by the actuator arm to resonate at a predetermined frequency corresponding to at least one disturbance associated with the HDI.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: June 22, 2010
    Assignee: Seagate Technology LLC
    Inventors: Antanas Daugela, Subra Nagarajan, Jason W. Riddering, Neal F. Gunderson, John S. Wright, Stefan A. Ionescu, Rick P. Freeman, Erick J. Lindquist, Andrew R. Motzko, Zine Eddine Boutaghou
  • HEAD-DISC INTERFACE (HDI) MODAL RESPONSE MONITORING
    Publication number: 20090015962
    Abstract: Apparatus and method for head-disc interface (HDI) modal response monitoring. A sensing element disposed on a rigid actuator arm is mechanically impedance matched to a head-disc interface (HDI) supported by the actuator arm to resonate at a predetermined frequency corresponding to at least one disturbance associated with the HDI.
    Type: Application
    Filed: July 11, 2007
    Publication date: January 15, 2009
    Applicant: Seagate Technology LLC
    Inventors: ANTANAS DAUGELA, Subra Nagarajan, Jason W. Riddering, Neal F. Gunderson, John S. Wright, Stefan A. Ionescu, Rick P. Freeman, Erik J. Lindquist, Andrew R. Motzko, Zine Eddine Boutaghou
  • Method and apparatus for attenuating flexible circuit resonance
    Patent number: 7271345
    Abstract: The present invention includes a method and apparatus for attenuating flexible circuit resonance. The apparatus includes a flexible circuit assembly. The flexible circuit assembly has a flexible circuit having a flexible cable with first and second sides. The flexible circuit assembly also includes a circuit support. The circuit support includes a base having top and bottom surfaces. The bottom surface is attached to the first side of the flexible cable. The circuit support also includes a support wall extending substantially perpendicularly relative to the top surface of the base. The support wall has a first face, which is substantially oriented towards the top surface of the base. The first side of the flexible cable is attached to the first face and also faces a second face of the support wall to thereby reverse a direction in which the flexible cable faces.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: September 18, 2007
    Assignee: Seagate Technology LLC
    Inventors: Rick P. Freeman, Michael David Schroeder, Daniel Dennis Dittmer, Fei Wang