Patents by Inventor Akira Tsuya

Akira Tsuya 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).

  • Radioactive diagnostic agent
    Patent number: 4430320
    Abstract: A radioactive diagnostic agent for renal cortex, adrenal cortex, myocardium, brain stem, spinal nerve, etc., which comprises as an essential component monoiodoacetic acid wherein the iodine atom is radioactive.
    Type: Grant
    Filed: October 8, 1981
    Date of Patent: February 7, 1984
    Assignee: Kabushiki Kaisha Seitai Kagaku Kenkyusho
    Inventors: Akiyo Shigematsu, Akira Tsuya, Michiaki Aihara, Akiko Suzuki, Michiko Matsuda