Patents Assigned to IHI Master Metal Ltd.
  • Vessel for making high-purity fine particles of active metals
    Patent number: 5007243
    Abstract: A method of making high-purity fine particles of reactive metals, reactive especially in terms of their inclination to form hydroxides, comprises the steps of: preparing an inert gas atmosphere within which to manufacture the particles; reducing the moisture remaining in the inert gas atmosphere to an extremely low level; pulverizing the reactive metal within the moisture-free inert gas atmosphere; and collecting and sealing the product particles of reactive metal in a storage container in the same moisture-free inert gas atmosphere.
    Type: Grant
    Filed: November 21, 1989
    Date of Patent: April 16, 1991
    Assignees: IHI Master Metal Ltd., Ishikawajima-Harima Heavy Industries Co., Ltd.
    Inventors: Toru Yamaguchi, Yukio Inazuki, Hideo Nakazawa
  • Method of making high-purity fine particles of reactive metals and manufacturing vessel therefor
    Patent number: 4971258
    Abstract: A method of making high-purity fine particles of reactive metals, reactive especially in terms of their inclination to form hydroxides, comprises the steps of: preparing an inert gas atmosphere within which to manufacture the particles; reducing the moisture remaining in the inert gas atmosphere to an extremely low level; pulverizing the reactive metal within the moisture-free inert gas atmosphere; and collecting and sealing the product particles of reactive metal in a storage container in the same moisture-free inert gas atmosphere.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: November 20, 1990
    Assignees: IHI Master Metal Ltd., Ishikawajima Harima Heavy Industries Co., Ltd.
    Inventors: Toru Yamaguchi, Yukio Inazuki, Hideo Nakazawa