Patents by Inventor Tomohiko Kusumi

Tomohiko Kusumi 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 controlling sludge dewatering
    Patent number: 5382356
    Abstract: The feature of the present invention resides in that when a polyelectrolyte coagulant is added to sludge to dewater the sludge in a sewage treatment plant, the dosage level of the polyelectrolyte coagulant to be to the sludge is controlled most properly, whereby moisture content of dewatered cake can be minimized.
    Type: Grant
    Filed: June 10, 1992
    Date of Patent: January 17, 1995
    Assignees: Tokyo Metropolitan, Tokyo Metropolitan Sewerage Service Corp., Japan Organo Co., Ltd.
    Inventors: Makoto Thogho, Tamotsu Hattori, Noboru Okazaki, Kozaburo Akamatus, Tomoyuki Hayashi, Tomohiko Kusumi