Patents by Inventor Kazumitsu Kondo

Kazumitsu Kondo 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).

  • Stock solution of release agent for green sand mold forming
    Patent number: 5626656
    Abstract: A release agent for green sand mold forming contains a hydrocarbon oil as the main lubrication component. The release agent contains a surface active agent as a dispersant and an anion surface active agent and/or a strong basic amine as a wettability improving agent as essential components besides the hydrocarbon oil. The release agent is used in a form of oil-in-water type emulsion by diluting it with water. Since it is possible to dilute the release agent with water, the release agent occupies less capacity during storage and transportation, and since the release agent can increase the water to the hydrocarbon oil ratio of the composition at application, it contributes to improvements in resource saving and safety against fire.
    Type: Grant
    Filed: May 22, 1996
    Date of Patent: May 6, 1997
    Assignee: Tetra Co., Ltd.
    Inventors: Kazumitsu Kondo, Keiichi Ito