Patents by Inventor Wataru Shinoda

Wataru Shinoda 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).

  • Anti-corrosive pigment and anti-corrosive aqueous paint
    Patent number: 4225352
    Abstract: An anti-corrosive pigment comprises an ion oxide-calcium oxide sintered composite of an average particle size in a range of 0.7-7 .mu.m, which contains at least 25% by weight of 2CaO.Fe.sub.2 O.sub.3 and has a extremely low water-solubility of calcium content. An anti-corrosive aqueous paints contains the above pigment and has a superior storage stability without causing a gellation.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: September 30, 1980
    Assignee: Toda Kogyo Corp.
    Inventors: Hajime Makino, Wataru Shinoda, Kazuhiro Yamamura
  • Permanent magnet composites and method therefor
    Patent number: 4126567
    Abstract: Permanent magnet composites comprising a cured liquid polymer matrix and hard magnetic ferrite particles dispersed therein are disclosed. The magnetic ferrite particles are present in an amount within the range of from about 5 to about 14 parts per part of polymer matrix, the magnetic ferrite particles having a general formula MO.n Fe.sub.2 O.sub.3, wherein M is selected from the group consisting of barium, strontium, lead, and mixtures thereof, and n has a value in the range of from about 4.5 to about 6.2. Various additives may optionally be employed to improve compatibility of the matrix polymer with the ferrite particles and to improve processibility. Also disclosed is a method for producing such magnetic composites.
    Type: Grant
    Filed: December 2, 1976
    Date of Patent: November 21, 1978
    Assignees: Kuraray Co., Ltd., Toda Kogyo Corporation
    Inventors: Junzo Otera, Tsutomu Makimoto, Wataru Shinoda, Norihisa Hattori