Patents by Inventor Nobutoshi Aoyagi

Nobutoshi Aoyagi 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).

  • Method and apparatus for continuous melting of gelled substance
    Patent number: 4958934
    Abstract: A melting tank for melting a gelled substance charged therein. The walls of the tank are heating. A first agitating blade agitates the bulk of the gelled substance to promote heat exchange with the walls. A second agitating blade is located closely adjacent a screen separating the gelled substance from a port at the bottom of the tank that is left open during agitation. Thereby, the melt flows down the walls of the tank and flows through the screen to the port.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: September 25, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hirokazu Saito, Seiichi Yukawa, Takashi Sato, Kiyoyuki Ushirokozi, Nobutoshi Aoyagi, Tomio Suzuki, Minoru Tanaka