Patents by Inventor Kiyoyuki OKUBO

Kiyoyuki OKUBO 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).

  • Hot rolled plate made of copper alloy used for a sputtering target and sputtering target
    Patent number: 9437405
    Abstract: Disclosed is a hot rolled plate produced by hot rolling an ingot cast by continuous casting, in which the plate is made of a copper alloy containing 0.5 to 10.0 at % of Ca and the balance consisting of Cu and inevitable impurities and the average grain size of Cu-? phase crystal grains is 5 to 60 ?m in a Cu matrix.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: September 6, 2016
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Kiyoyuki Okubo, Masato Koide
  • HOT ROLLED PLATE MADE OF COPPER ALLOY USED FOR A SPUTTERING TARGET AND SPUTTERING TARGET
    Publication number: 20150318153
    Abstract: Disclosed is a hot rolled plate produced by hot rolling an ingot cast by continuous casting, in which the plate is made of a copper alloy containing 0.5 to 10.0 at % of Ca and the balance consisting of Cu and inevitable impurities and the average grain size of Cu-? phase crystal grains is 5 to 60 ?m in a Cu matrix.
    Type: Application
    Filed: December 3, 2013
    Publication date: November 5, 2015
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Kiyoyuki OKUBO, Masato KOIDE