Patents by Inventor Yoshihisa Ujita

Yoshihisa Ujita 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).

  • IMAGING DEVICE
    Publication number: 20240107725
    Abstract: An imaging device according to the present disclosure includes a front case, a rear case, and a shield member. The front case supports an imaging optical unit. The rear case includes an electrically conductive output mechanism configured to output a signal output from the imaging optical unit. The shield member electrically connects the front case and the output mechanism.
    Type: Application
    Filed: December 1, 2023
    Publication date: March 28, 2024
    Inventors: Yasutaka MATSUMOTO, Makoto SAITO, Yoshihisa SHIMAZU, Keiichi UJITA
  • Surface conditioning prior to chemical conversion treatment of a steel member
    Patent number: 7666266
    Abstract: By subjecting a threaded joint for OCTG (oil country tubular goods) to surface conditioning with an aqueous solution of potassium tetraborate or sodium tetraborate prior to manganese phosphate chemical conversion treatment, a manganese phosphate chemical conversion coating having coarse crystal grains with an average crystal grain diameter of 10-110 micrometers is formed on the surface of the steel member which may be any steel including a high Cr steel. This manganese phosphate chemical conversion coating can hold a large amount of a liquid lubricant, and it is effective at preventing the occurrence of galling at the time of makeup of a threaded joint for OCTG.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: February 23, 2010
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Masaru Izawa, Kunio Godo, Yoshihisa Ujita, Noriko Ujita, legal representative, Takahiro Takano
  • Surface conditioning prior to chemical conversion treatment of a steel member
    Publication number: 20070056656
    Abstract: By subjecting a threaded joint for OCTG (oil country tubular goods) to surface conditioning with an aqueous solution of potassium tetraborate or sodium tetraborate prior to manganese phosphate chemical conversion treatment, a manganese phosphate chemical conversion coating having coarse crystal grains with an average crystal grain diameter of 10-110 micrometers is formed on the surface of the steel member which may be any steel including a high Cr steel. This manganese phosphate chemical conversion coating can hold a large amount of a liquid lubricant, and it is effective at preventing the occurrence of galling at the time of makeup of a threaded joint for OCTG.
    Type: Application
    Filed: June 2, 2006
    Publication date: March 15, 2007
    Inventors: Masaru Izawa, Kunio Godo, Yoshihisa Ujita, Takahiro Takano, Noriko Ujita