Patents by Inventor Kenichi Yamakoshi

Kenichi Yamakoshi 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).

  • Limb blood flowmeter
    Patent number: 4204545
    Abstract: A human limb to be examined is pressurized on the side of the heart to occlude the venous return alone for the measurement of admittance of the limb, and the measured initial admittance is retained and compared with subsequently measured admittance to detect a difference .DELTA.Y therebetween. The blood resistivity .rho., the length L of the limb segment to be examined and its tissue volume V.sub.O are respectively set, and .rho.L.sup.2 .DELTA.Y/V.sub.O is computated. The initial gradient of the computation result to time is indicative of the blood flow rate in the limb being examined.
    Type: Grant
    Filed: April 21, 1978
    Date of Patent: May 27, 1980
    Assignee: Asahi Medical Co., Ltd.
    Inventor: Kenichi Yamakoshi