Patents by Inventor Toshihito Kitamura

Toshihito Kitamura 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).

  • Benzamide platelet activating factor antagonists
    Patent number: 5401756
    Abstract: Benzamide platelet activating factor antagonists of the following formula (I): ##STR1## wherein ##STR2## B, D: hydrogen atom, etc. E: pyridyl group, etc.n: integer from 0 to 2R.sup.2 : R.sup.3 R.sup.4 N-- etc.(R.sup.3, R.sup.4 : optionally substituted C.sub.6 -C.sub.12 aryl group, etc.) ##STR3## optical antipodes thereof or pharmaceutically acceptable salts thereof, show excellent PAF antagonism and are effective for therapy and prophylaxis of diseases caused by PAF (bronchial asthma, nephritis, shocks, cardiac infarction, cerebral hemorrhage, ulcer, DIC, autoimmune diseases, thrombosis, etc.).
    Type: Grant
    Filed: February 2, 1994
    Date of Patent: March 28, 1995
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Akihiro Yamamoto, Shuji Morita, Yoshio Hayashi, Noboru Yamada, Toshihito Kitamura
  • Benza-triazinone derivatives
    Patent number: 5304556
    Abstract: Benzamide derivatives of the following formula (I) ##STR1## [wherein R.sup.1 : ##STR2## B, D: hydrogen atom, etc. E: pyridyl group, etc.n: integer from 0 to 2R.sup.2 : R.sup.3 R.sup.4 N-- etc.(R.sup.3,R.sup.4 : optionally substituted C.sub.6 -C.sub.14 aryl group, etc.)A; ##STR3## --CH.sub.2 --, --N.dbd.N--, --CH.dbd.N--, --N.dbd.CH--, --CH.dbd.CH-- or --CH.sub.2 --CH.sub.2 --].Optical antipodes thereof or pharmaceutically acceptable salts thereof, show excellent PAF antagonism and are effective for therapy and prophylaxis of diseases caused by PAF (bronchial asthma, nephritis, shocks, cardiac infarction, cerebral hemorrhage, ulcer, DIC, autoimmune diseases, thrombosis, etc.).
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: April 19, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Akihiro Yamamoto, Shuji Morita, Yoshio Hayashi, Noboru Yamada, Toshihito Kitamura