Patents by Inventor Kazue Saitoh

Kazue Saitoh 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 of making phantom for NMR diagnosis
    Patent number: 5071602
    Abstract: A method of making a phantom for NMR diagnosis contains the steps of placing at least one small container having at least a portion of its wall made of a thin film of a plastic material in a large container made of a plastic material, charging a first aqueous solution of polyvinyl alcohol into the small container, charging a second aqueous solution of polyvinyl alcohol into a space defined by the outer wall of the small container and the inner wall of the large container, freezing the first and second aqueous solutions of polyvinyl alcohol to obtain frozen masses, and then thawing the frozen masses. A composition of the first aqueous solution of polyvinyl alcohol is different from a composition of the second aqueous solution of polyvinyl alcohol.
    Type: Grant
    Filed: August 1, 1990
    Date of Patent: December 10, 1991
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Masao Nambu, Kazue Saitoh