Patents by Inventor Masaki KITAGAKI

Masaki KITAGAKI 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).

  • Magnesium oxide for annealing separator, and grain-oriented electromagnetic steel sheet
    Patent number: 11097955
    Abstract: An object of the present invention is to provide magnesium oxide for an annealing separator which is useful for obtaining grain-oriented electromagnetic steel sheets with excellent magnetic properties and insulating properties. To resolve the above object, an aspect of the present invention resides in magnesium oxide for an annealing separator having a Blaine specific surface area of 2.5×103 to 7.0×103 m2·kg?1 and CAA of 50 to 170 seconds.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: August 24, 2021
    Assignee: TATEHO CHEMICAL INDUSTRIES CO., LTD.
    Inventors: Masaki Kitagaki, Yutaka Hiratsu, Tadasuke Kamei
  • MAGNESIUM OXIDE FOR ANNEALING SEPARATOR, AND GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET
    Publication number: 20200115250
    Abstract: An object of the present invention is to provide magnesium oxide for an annealing separator which is useful for obtaining grain-oriented electromagnetic steel sheets with excellent magnetic properties and insulating properties. To resolve the above object, an aspect of the present invention resides in magnesium oxide for an annealing separator having a Blaine specific surface area of 2.5×103 to 7.0×103 m2·kg?1 and CAA of 50 to 170 seconds.
    Type: Application
    Filed: March 16, 2017
    Publication date: April 16, 2020
    Inventors: Masaki KITAGAKI, Yutaka HIRATSU, Tadasuke KAMEI