Patents by Inventor Kyudo Ota

Kyudo Ota 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).

  • Metallic fastener member and fastener equipped with same
    Patent number: 10178898
    Abstract: An improved season cracking resistance of a metallic fastener member is provided and includes a copper alloy containing zinc as a base material. The metallic fastener member includes, as a base material, a copper alloy containing zinc, and the metallic fastener member has a surface to which a rust prevention treatment has been applied and has such a property that, when analyzed by a scanning X-ray photoelectron spectroscopy apparatus, a maximum value of an atomic concentration of Mn is detected at a depth of 100 nm or less from the surface.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: January 15, 2019
    Assignee: YKK Corporation
    Inventors: Takuya Koizumi, Kouta Kido, Yasuhara Yoshimura, Kyudo Ota, Itaru Hasegawa, Kazuya Akitsu, Yuri Katsumi
  • Metallic Fastener Member and Fastener Equipped with Same
    Publication number: 20180049521
    Abstract: An improved season cracking resistance of a metallic fastener member is provided and includes a copper alloy containing zinc as a base material. The metallic fastener member includes, as a base material, a copper alloy containing zinc, and the metallic fastener member has a surface to which a rust prevention treatment has been applied and has such a property that, when analyzed by a scanning X-ray photoelectron spectroscopy apparatus, a maximum value of an atomic concentration of Mn is detected at a depth of 100 nm or less from the surface.
    Type: Application
    Filed: March 12, 2015
    Publication date: February 22, 2018
    Inventors: Takuya Koizumi, Kouta Kido, Yasuhara Yoshimura, Kyudo Ota, Itaru Hasegawa, Kazuya Akitsu, Yuri Katsumi