Patents by Inventor Yasuyuki Gotou

Yasuyuki Gotou 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 processing organic waste water
    Patent number: 5679252
    Abstract: The present invention provides a high-performance organic waste water treating system which allows continuous processing of waste water without causing deterioration of the performance due to clogging of the filtration bed, excessive sludge, bad smell, or breeding of flies. The system of the invention includes a trickling filtration bed packed with filter media having a particle diameter of not greater than 10 mm, the filtration bed comprising an upper portion, a middle portion, and a lower portion, an air supply unit for feeding air from a bottom of the filtration bed to make the air flown through the filtration bed, and a vent pipe embedded into the middle portion of the filtration bed to connect to the atmosphere. A predetermined amount of organic waste water is abruptly supplied over a short time period into the trickling filtration bed at a predetermined cycle.
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: October 21, 1997
    Assignee: Deconta Integre Co., Ltd.
    Inventors: Yasuyuki Gotou, Masumi Okamoto, Katsuhiro Suzuki, Teruyuki Kanie, Itsuki Uchikawa, Takashi Nakagaki
  • Angiographic adjuvant
    Patent number: 5445812
    Abstract: An angiographic adjuvant comprising a fat emulsion containing a compound having prostaglandin E1 activities, and an angiographic method using the adjuvant.
    Type: Grant
    Filed: October 19, 1994
    Date of Patent: August 29, 1995
    Assignees: The Green Cross Corporation, Taisho Pharmaceutical Co., Ltd.
    Inventor: Yasuyuki Gotou