Patents by Inventor Hirota Amano

Hirota Amano 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).

  • Direct method for production of high-grade, high-purity ferromanganese
    Patent number: 4282032
    Abstract: A direct method for the production of high-grade, high-purity ferromanganese comprising the steps of charging a molten Mn-containing material, a non-carbonaceous reducing agent and a slagging material in a reaction vessel and subjecting the reaction vessel to horizontal eccentric circular motion to mix and agitate the contents of the vessel, whereby the Mn oxide contained in the molten Mn-containing material is reduced by the non-carbonaceous reducing agent.
    Type: Grant
    Filed: October 30, 1979
    Date of Patent: August 4, 1981
    Assignee: Pacific Metals Co., Ltd.
    Inventors: Yoshishige Nagoya, Kosuke Murai, Hirota Amano, Yoshisada Soga