Patents by Inventor Hirohiko Nonaka

Hirohiko Nonaka 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).

  • Blood purification system
    Patent number: 4372846
    Abstract: The invention relates to a blood purification system especially useful as an artificial kidney system. When the blood of the patient is purified by a filter, the volume of filtrate from the filter is measured accurately and the volume of a substitution fluid supplied to the patient is measured accurately. The blood is purified while the two volumes are being maintained in balance accurately.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: February 8, 1983
    Assignee: Daicel Chemical Industries Ltd.
    Inventors: Seiji Yamagami, Hirohiko Nonaka, Tuneyoshi Shimonaru, Koichi Takashima, Yasuhiko Kato