Patents by Inventor Masami Tsunekawa

Masami Tsunekawa 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 for agglomeration in liquid and apparatus used therefor
    Patent number: 5152942
    Abstract: Agglomerated particle size of ceramic materials is controlled by accurate determination of the proper final point of agglomeration. A part of a suspension in a cylindrical agitating region having agitation blades is circulated through a pipe having at least one transparent portion, the suspension which flows through the transparent pipe is irradiated with a light, preferably a laser beam and the final point of agglomeration is calculated based on the change in quantity of the transmitted light and/or the change in acoustic emission generated in the agitating region, thereby to stop the agglomeration.
    Type: Grant
    Filed: February 14, 1992
    Date of Patent: October 6, 1992
    Assignee: Showa Shell Sekiyu Kabushiki Kaisha
    Inventors: Masayoshi Nakamura, Takakatsu Takamori, Masami Tsunekawa, Tsuyoshi Hirajima, Winston Guinto, Fuminori Saga, Yoshihiro Nishisu