Patents by Inventor Naosuke Seto

Naosuke Seto 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).

  • Phosphoramide derivatives and medicines containing the same
    Patent number: 4454126
    Abstract: Phosphoramide derivatives of the general formula: ##STR1## are disclosed wherein X and Y each represents a hydrogen atom or X and Y are removed to form a double bond between the respective adjoining carbon atoms, and n represents an integer of 0 to 2. A process for the preparation of these compounds and pharmaceutical compositions containing these phosphoramide derivatives are also disclosed. The phosphoramide derivatives of the invention are used to treat urethral calculosis and pyelonephritis.
    Type: Grant
    Filed: October 15, 1982
    Date of Patent: June 12, 1984
    Assignee: Eisai Co., Ltd.
    Inventors: Isao Yamatsu, Yuichi Inai, Takeshi Suzuki, Shinya Abe, Masaru Satoh, Naosuke Seto