Patents by Inventor Jung J. Suh

Jung J. Suh 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).

  • Dihydropyridine derivatives
    Patent number: 5089624
    Abstract: The present invention relates to 1,4-dihydropyridine of the formula(I) ##STR1## wherein R.sup.1 represents a phenyl group which may be substituted by one or two substituents selected from halogeno, nitro, trifluoromethyl and difluoromethoxy group, or 2,1,3-benzoxadiazole-4-yl group, R.sup.2 represents a lower alkyl or phenyl group, R.sup.3 represents a lower alkyl group and Y represents an oxygen or sulfur atom.The compounds of the formula(I) can be employed for treatment or prevention of cardiovascular diseases.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: February 18, 1992
    Assignee: Yuhan Corporation
    Inventors: Choong S. Kim, Jung J. Suh, Bong Y. Lee, Chang S. Kim, Jong W. Lee, Byung C. Kim, Byung H. Han
  • Process for the preparation of 3,4-dihydro-2-substituted-2H-1,2-thiazine-carboxylic acid 1,1-dioxide derivatives
    Patent number: 4683306
    Abstract: Process for the preparation of 3,4-dihydro-2-substituted-4(or 3)-oxo-2H-1,2-thiazine-3(or 4)-carboxylic acid 1,1,-dioxide magnesium chelate derivatives and its acids by reacting appropriately 3,4-dihydro-2-substituted-4(or 3)-oxo-2H-1,2-thiazine 1,1-dixoides with alkylmagnesiumcarbonate and then hydrolyzing and its use as intermediates for the preparation of N-substituted-2-substituted-2H-1,2-thiazine-3(or 4)-carboxamide-1,1-dioxide derivatives, effective antiinflammatory agents.
    Type: Grant
    Filed: July 13, 1984
    Date of Patent: July 28, 1987
    Assignee: YuHan Corporation Co., Ltd.
    Inventors: Jung J. Suh, You H. Hong