Patents by Inventor Iwao Mikami

Iwao Mikami 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).

  • Crystalline salt of 7.beta.-[2-(2-aminothiazol-4-yl)-(Z)-2-methoxyiminoacetamido]-3-[(1-meth yl-1H-tetrazol-5-yl)thiomethyl]ceph-3-em-4-carboxylic acid and HCl or HBr
    Patent number: 4298607
    Abstract: A crystalline hemi-acid salt comprising one molecule of 7.beta.-[2-(2-aminothiazol-4-yl)-(Z)-2-methoxyiminoacetamido]-3-[(1-methyl -1H-tetrazol-5-yl)thiomethyl]ceph-3-em-4-carboxylic acid and a half molecule of HCl and HBr, is endowed with a high stability and suitable for an active component of an antimicrobial composition.
    Type: Grant
    Filed: December 11, 1979
    Date of Patent: November 3, 1981
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Hideaki Natsugari, Iwao Mikami, Michihiko Ochiai
  • Method for producing pyrimidine
    Patent number: 3954756
    Abstract: 2-Alkyl-4-amino-5-formylaminomethylpyrimidine is produced in a higher yield and using less process steps than the known methods by subjecting .beta.-aminopropionitrile to formylation in the presence of metal alcoholate, subjecting the resulting metal salt of .alpha.-formyl-.beta.-formylaminopropionitrile to alkylation or acylation, followed by allowing the thus produced .alpha.-alkoxy (or acyloxy)-methylene-.beta.-formylaminopropionitrile to react with an amidine.
    Type: Grant
    Filed: May 10, 1973
    Date of Patent: May 4, 1976
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Tetsuo Maruyama, Iwao Mikami, Kazuo Imaoka