Patents by Inventor Kazuo Takeishi

Kazuo Takeishi 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).

  • Process for treating organic waste water
    Patent number: 5006251
    Abstract: A process for treating organic waste water in which a first step provided the stage precedent to a second step using an aerobic filter bed employs an upward flow type solid-liquid separator packed with a filter medium, with the SS (suspended solids) removal at the preceding stage being performed at a high SS removal rate and in a short time.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: April 9, 1991
    Assignees: Director General, Public Works Research Institute, Ministry of Construction, Nishihara Environmental Sanitation Research Corporation Limited
    Inventors: Kazuo Takeishi, Yasuhiro Okubo, Takashi Itoh