Patents by Inventor Haruki Mizuno

Haruki Mizuno 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).

  • Patent number: 4508567
    Abstract: A flux-path forming member of a motor is prepared from a mixture mass by evenly mixing up to 4% of a thermosetting resin binder and molybdenum disulfide with at least 96% of a metal powder, fibrous metal, or a combination thereof; a second step of compacting in a mold under pressure the mixture mass into a desired shape; and a third step of heating, concurrently with or subsequently to the second step, the mixture mass to an elevated temperature to cure the binder portion thereof. The compact prepared by the above process is also disclosed. The content of the thermosetting resin at least 0.2 percent by weight, and the content of the molybdenum disulfide is at least 0.1 percent by weight. The curing operation is conducted at a temperature not higher than 300.degree. C.
    Type: Grant
    Filed: June 24, 1982
    Date of Patent: April 2, 1985
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shigeru Mizuno, Masahiko Suzuki, Haruki Mizuno, Masutaro Katsu