Patents by Inventor Masaru Satoh

Masaru Satoh 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
  • Novel hydroxamic acid compounds, method for preparation thereof and medicaments containing such compounds
    Patent number: 4256765
    Abstract: A novel hydroxamic acid compound represented by the general formula:R.sub.1 --CONHCH.sub.2 CONHOHwherein R.sub.1 is an alkyl, cycloalkyl or cycloalkyl alkyl group having from 4 to 11 carbon atoms, and pharmacologically acceptable salt thereof, and a method for the preparation of the above-mentioned compound and salt, and a novel medicament for the treatment of urolithiasis and pyelonephritis, containing the above-mentioned compound or salt as an active ingredient.
    Type: Grant
    Filed: September 18, 1979
    Date of Patent: March 17, 1981
    Assignee: Eisai Co., Ltd.
    Inventors: Keiichi Munakata, Satoru Tanaka, Tamotsu Kanazawa, Masaru Satoh, Jun-ichi Hase, Kyoichi Kobashi