Patents by Inventor Yoshitaka Momotari

Yoshitaka Momotari 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: 4810572
    Abstract: The permanent magnet which is excellent in moldability, capable of maintaining the dimensional stability and magnetic properties during manufacturing steps, and having good dimensional stability at high temperature, water proofness, oil resistance and solvent resistance, can be constituted by a shaped substance containing, as major ingredients, rare-earth magnet powder and, as binder materials which has been cured and the process for producing the same.
    Type: Grant
    Filed: February 13, 1987
    Date of Patent: March 7, 1989
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Takashi Ooe, Minoru Nagai, Yoshitaka Momotari
  • Patent number: 4122143
    Abstract: Process for producing conductive cured products are disclosed. In one embodiment a copper compound is reacted with a reducing substance capable of reducing said copper compound to metallic copper, in the presence of a metallic copper powder on a substrate, thereby reducing the copper compound to metallic copper and forming a conductive connected unit of said metallic copper powder, and the connected unit is then subjected to cure molding with a resinous curable component to integrate the constituent elements into the conductive cured product. In a second embodiment, the ligand portion of a copper compound of a ligand capable of reducing copper in a compound state is reacted with the copper moiety present in said copper compound in the presence of a metallic copper powder on a substrate. The copper moiety is reduced and precipitated to form a conductive connected unit of a metallic copper powder and the connected unit is then subjected to cure molding with a resinous curable component.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: October 24, 1978
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Yoshitaka Momotari, Junji Hara, Tadashi Kitamura, Shigeo Iiyama