Patents by Inventor Hiroshi Dohi

Hiroshi Dohi 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).

  • Methods for producing a resin-bonded magnet
    Patent number: 4981635
    Abstract: A method for producing a resin-bonded magnet, which includes steps of mixing a magnet element and microcapsules each of which contains at least one component of a thermally polymerizable resin composition as a binder component, mechanically breaking at least a part of the microcapsules during formation of a green compact comprising said resin composition and said magnet element to discharge the components of said resin composition from the capsules, and curing said resin to produce the resin-bonded magnet.
    Type: Grant
    Filed: February 28, 1989
    Date of Patent: January 1, 1991
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Fumitoshi Yamashita, Masami Wada, Masaharu Miyagawa, Hiroshi Dohi