Patents by Inventor Kikuo Nakazato

Kikuo Nakazato 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).

  • Tetrahydroindole derivative as medicament for cerebral apoplexy
    Patent number: 4652581
    Abstract: 1-Isopropyl-3-hydroxy-5-semicarbazono-6-oxo-2,3,5,6-tetrahydroindole, inclusive of pharmacologically acceptable salts thereof, is effective for prophylaxis and treatment of cerebral apoplexy.
    Type: Grant
    Filed: June 27, 1985
    Date of Patent: March 24, 1987
    Assignee: Grelan Pharmaceutical Co., Ltd.
    Inventors: Kazunaga Fukawa, Kazuyoshi Bando, Yoshikazu Hatanaka, Kikuo Nakazato
  • N-Phthalidyl-5-fluorouracils
    Patent number: 4528372
    Abstract: The present invention relates to novel N-phthalidyl-5-fluorouracil derivatives represented by the general formula ##STR1## wherein one of R.sub.1 and R.sub.2 represents phthalidyl group ##STR2## (wherein R.sub.3 is a hydrogen atom, a halogen atom or a group selected from alkoxyl groups or alkyl groups) and the other represents a hydrogen atom, an acyl group or a cyclic ether group; ##STR3## (wherein n is 1 or 2) or R.sub.1 and R.sub.2 represent the same phthalidyl group; ##STR4## (wherein R.sub.3 has the same meaning as that defined above) and provides a compound which has antitumor activity and less toxicity and can be used as a cancerocidal agent.
    Type: Grant
    Filed: May 21, 1982
    Date of Patent: July 9, 1985
    Assignee: Grelan Pharmaceutical Co., Ltd.
    Inventors: Kazuo Kigasawa, Mineharu Hiiragi, Kikuo Wakisaka, Keiko Ichikawa, Kikuo Nakazato, Taiji Okada