Patents by Inventor Katsumasa Nakatsukasa

Katsumasa Nakatsukasa 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: 9819129
    Abstract: Described herein is an apparatus that includes a housing that defines an interior cavity. The housing also includes a feedthrough aperture. The apparatus also includes an electrical connector that is coupled to the housing over the feedthrough aperture. The electrical connector includes a base, a plurality of pins extending through the base, and a skirt positioned about a periphery of the base. The pins extend from a location external to the housing to a location within the interior cavity of the housing. Further, an inner surface of the base is co-planar with an outer end of the feedthrough aperture. The apparatus also includes solder positioned on the housing and against an entire periphery of the skirt to seal the electrical connector to the housing.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: November 14, 2017
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Noritaka Otake, Hiroshi Matsuda, Katsumasa Nakatsukasa, Kouki Uefune
  • Publication number: 20150098178
    Abstract: Described herein is an apparatus that includes a housing that defines an interior cavity. The housing also includes a feedthrough aperture. The apparatus also includes an electrical connector that is coupled to the housing over the feedthrough aperture. The electrical connector includes a base, a plurality of pins extending through the base, and a skirt positioned about a periphery of the base. The pins extend from a location external to the housing to a location within the interior cavity of the housing. Further, an inner surface of the base is co-planar with an outer end of the feedthrough aperture. The apparatus also includes solder positioned on the housing and against an entire periphery of the skirt to seal the electrical connector to the housing.
    Type: Application
    Filed: October 4, 2013
    Publication date: April 9, 2015
    Applicant: HGST Netherlands B.V.
    Inventors: Noritaka Otake, Hiroshi Matsuda, Katsumasa Nakatsukasa, Kouki Uefune
  • Patent number: 6327814
    Abstract: A hard disk drive has a base bottom surface and a male connector to which at least one protruding pin is attached. The pin has a longitudinal axis that is substantially parallel to the base bottom surface and is exposed toward the base bottom surface. A female connector cover portion covers at least a portion of a plane above a female connector. The plane is substantially parallel to the base bottom surface. The pin of the male connector is inserted into a pin-receiving portion of the female connector by guiding the base bottom surface along and on an insert-guidance surface. The female connector is mounted on the insert-guidance surface and has at least one pin-receiving portion corresponding to the pin of the male connector so that the pin of the male connector can be received. The female connector cover functions as a forcible guide in mounting the hard disk drive to prevent damage at the external interface between the pins of the male connector and its mounting location.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: December 11, 2001
    Assignee: International Business Machines Corporation
    Inventors: Hitoshi Tsujino, Jun Ishikawa, Katsumasa Nakatsukasa, Yoshiroh Amano