Patents by Inventor Ryoko Nakajima

Ryoko Nakajima 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).

  • Lactam compounds
    Patent number: 4198514
    Abstract: Compounds of formula: ##STR1## wherein X.sup.1 is a halogen atom, X.sup.2 is a halogen atom or hydrogen atom, n is 1 or 2 are novel compounds and useful as anti-anxiety agents.
    Type: Grant
    Filed: October 11, 1978
    Date of Patent: April 15, 1980
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Masayuki Imanishi, Yutaka Masuoka, Ryoko Nakajima