Patents by Inventor Tadasu Sugawara

Tadasu Sugawara 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).

  • Apparatus and method for producing and automatically injecting H.sub.2.sup.1 O
    Patent number: 5223434
    Abstract: An apparatus for producing and automatically injecting H.sub.2.sup.15 O, having: a target box adapted to be irradiated with a deuteron beam, a gas supplying device for supplying a hydrogen gas and a nitrogen gas as raw-material gases to the target box a radioactive-isotope conveying pipe connecting the target box and a vacuum pump for maintaining the interior of the target box and the interior of the radioactive-isotope conveying pipe in a vacuum state. In addition, the apparatus has an injection-fluid producing device and an automatic injection device, wherein the target box, the injection-fluid producing device and the automatic injection device are fluidly communicated with one another.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: June 29, 1993
    Assignees: Kazuo Uemura, The Japan Steel Works, Ltd.
    Inventors: Iwao Kanno, Matsutaro Murakami, Yohjiro Toda, Tadasu Sugawara, Masahiko Handa, Akira Mizuno