Patents by Inventor Richard A. Heck

Richard A. Heck 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: 8310284
    Abstract: A Group III-N high electron mobility transistor is driven by a high-voltage gate driver that limits the gate-to-source voltage across the transistor by controlling the maximum charge that can be placed on a boot strap capacitor that charges up the gate of the transistor to turn on the transistor.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: November 13, 2012
    Assignee: National Semiconductor Corporation
    Inventor: Karl Richard Heck
  • Publication number: 20120176162
    Abstract: A Group III-N high electron mobility transistor is driven by a high-voltage gate driver that limits the gate-to-source voltage across the transistor by controlling the maximum charge that can be placed on a boot strap capacitor that charges up the gate of the transistor to turn on the transistor.
    Type: Application
    Filed: January 7, 2011
    Publication date: July 12, 2012
    Inventor: Karl Richard Heck
  • Publication number: 20070252006
    Abstract: A method and apparatus for labeling plant products based on laser activation of a color-changing compound is disclosed. In the preferred embodiment, a nozzle sprays a coating of photosensitive material containing color-changing chemical component. An optional drying station is set up to optimize homogeneity and adhesiveness of the color-changing coating. A laser equipped with beam steering optics is used to image the desired mark on the plant product by inducing a change of color in the photosensitive coating, without contacting the plant product skin and at a high speed. An optional nozzle sprays a sealant coating after printing, for extended durability of the imaged label. In addition, an optical sensor detects the incoming plant product, determines its size and sends information for selecting the proper label to be imaged. An additional optical sensor can be placed at the end of the process to verify the quality and legibility of the imaged label.
    Type: Application
    Filed: May 1, 2006
    Publication date: November 1, 2007
    Inventors: Richard Heck, Juan Ibarra, James Sheffler
  • Publication number: 20050122524
    Abstract: A method and apparatus of sorting plant products based on damage to the plant products is disclosed. A beam emitter emits an illumination light toward the outer surface of a plant product. A beam detector detects substantially a single wavelength of a reflected light produced by the plant product responsive to the illumination light. A control unit determines at least one of a presence, an amount, and a severity of damage responsive to the reflected light. The control unit assigns a damage category to the plant product responsive to the determination of damage.
    Type: Application
    Filed: December 5, 2003
    Publication date: June 9, 2005
    Inventors: Juan Ibarra, James Sheffler, Matias Gonzales, Richard Heck, Henry Affeldt
  • Patent number: 4732435
    Abstract: A crisper drawer structure for use in a refrigerator wherein a front portion of the crisper drawer extends into subjacent relationship to a rearwardly projecting shelf on the refrigerator door in the closed arrangement of the refrigerator. A transparent cover member is pivotally mounted to the drawer guides to close the front portion of the crisper drawer in the storage disposition while allowing ready viewability of the contents thereof by the user. The cover member automatically moves between the closing disposition when the crisper drawer is in the storage arrangement to an uncovered disposition when the crisper drawer is brought forwardly to the access arrangement. The arrangement of the cover member is such as to effectively preclude retention of articles thereon, thereby avoiding impact damage to the door shelf by abutment with such articles upon closing of the door.
    Type: Grant
    Filed: November 7, 1986
    Date of Patent: March 22, 1988
    Assignee: Whirlpool Corporation
    Inventors: Curtis J. Bailey, Richard A. Heck, Richard Waisanen
  • Patent number: 4202395
    Abstract: An adjustable shade structure embodying an expandable compactible shade member secured to upper and lower shade bars slidable engaged in a parallelogram cord system. The shade structure is supported upon a suitable frame, such as a window or door frame or upon a free standing floor supported frame.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: May 13, 1980
    Assignee: Sundberg-Ferar, Inc.
    Inventors: Richard A. Heck, David J. Dekker
  • Patent number: D270338
    Type: Grant
    Filed: February 13, 1981
    Date of Patent: August 30, 1983
    Assignee: Square D Company
    Inventors: Richard A. Heck, Louis L. Mastro