Patents by Inventor Akitsugu MIWA

Akitsugu MIWA 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).

  • Base member including information mark and insulating coating layer, and disk drive apparatus including the same
    Patent number: 10460767
    Abstract: A base member is structured to define a portion of a casing in which a gas with a density lower than that of air is to be sealed and to support a motor to be housed in the casing. The base member includes a base body made of a cast material, an information mark, and an insulating coating layer. The information mark includes casting information and is located on a portion of a surface of the base body. The insulating coating layer is defined on the surface of the base body and covers the information mark.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: October 29, 2019
    Assignee: NIDEC CORPORATION
    Inventors: Tomohiro Yoneda, Takaharu Funatsu, Akitsugu Miwa, Masakazu Matsuyama, Junzo Fujinawa, Tadahiro Kuramoto
  • BASE MEMBER, AND DISK DRIVE APPARATUS INCLUDING THE SAME
    Publication number: 20190139579
    Abstract: A base member is structured to define a portion of a casing in which a gas with a density lower than that of air is to be sealed and to support a motor to be housed in the casing. The base member includes a base body made of a cast material, an information mark, and an insulating coating layer. The information mark includes casting information and is located on a portion of a surface of the base body. The insulating coating layer is defined on the surface of the base body and covers the information mark.
    Type: Application
    Filed: October 1, 2018
    Publication date: May 9, 2019
    Inventors: Tomohiro YONEDA, Takaharu FUNATSU, Akitsugu MIWA, Masakazu MATSUYAMA, Junzo FUJINAWA, Tadahiro KURAMOTO