Patents by Inventor Shigemitsu Yoshimi

Shigemitsu Yoshimi 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).

  • Process for producing resin-coated sand particles for use in shell moles
    Patent number: 3962491
    Abstract: A process for producing resin-coated sand particles for use in shell moles wherein a phenolformaldehyde resin in an initial stage of condensation is sprayed into a hot zone to form droplets which gravitationally descend to a cold zone and solidify. The particles are mixed with sand, heated to a temperature above the melting point of the resin and coat the sand.
    Type: Grant
    Filed: February 8, 1974
    Date of Patent: June 8, 1976
    Assignee: Aisin Chemical Company, Limited
    Inventors: Tadashi Sato, Yasunobu Yamamoto, Iwao Mizutani, Shigemitsu Yoshimi, Tsutomu Teramoto