Patents by Inventor Masaharu Miyajima

Masaharu Miyajima 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).

  • Pharmaceutical composition of dihydropyridine compound
    Patent number: 4983593
    Abstract: A pharmaceutical composition comprising: a 1:1 solvate of 5-(5,5-dimethyl-1,3,2-dioxaphosphorinane-2-yl)-1,4-dihydro-2,6-dimethyl-4- (3- itrophenyl)-3-pyridine carboxylic acid 2-(phenylmethyl)amino) ethyl ester P-oxide hydrochloride-thanol (NZ-105) and hydroxypropylmethylcellulose acetate succinate is disclosed. the composition can easily be prepared into tablets, capsules, granules, and powders, which exhibit an enhanced bioavailability, e.g. provides a high blood concentration of the active component NZ-105 and ensures a high total drug absorption.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: January 8, 1991
    Assignees: Zeria Pharmaceutical Co, Nissan Chemical Industries Ltd.
    Inventors: Masaharu Miyajima, Yukiya Yamaguchi, Takao Tsunematsu, Toshihisa Oda