Patents by Inventor Johoji Yamahara

Johoji Yamahara 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).

  • Compound with &agr;-glucosidase inhibiting action and method for producing the same
    Patent number: 6376682
    Abstract: A compound expressed by chemical structural formula: having the characteristic of specifically inhibiting the activity of &agr;-glucosidase (an enzyme that breaks down disaccharides, etc.) at the intestinal level. The compound is obtained by extraction and fractionation from Salacia prinoides and/or Salacia oblonga, which are used as natural drugs. A highly safe antidiabetic agent and dieting agent are produced using the compound as a base.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: April 23, 2002
    Assignee: Takama System, Ltd.
    Inventor: Johoji Yamahara
  • Compound with alpha-glucosidase inhibiting action and method for producing the same
    Publication number: 20020041904
    Abstract: A compound expressed by chemical structural formula: 1
    Type: Application
    Filed: January 31, 2001
    Publication date: April 11, 2002
    Applicant: TAKAMA SYSTEMS, LTD.
    Inventor: Johoji Yamahara