Patents by Inventor Tadahiko Hazato

Tadahiko Hazato 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).

  • Method for measuring spinorphin
    Publication number: 20060194268
    Abstract: The present invention aims at providing a method for measuring spinorphin in a sample collected from a living body accurately with high sensitivity.
    Type: Application
    Filed: August 24, 2005
    Publication date: August 31, 2006
    Inventors: Tadahiko Hazato, Yukio Yamamoto, Yoshiro Yamamura
  • Method for diagnosis of rheumatoid arthritis
    Publication number: 20060177886
    Abstract: The present invention aims at providing a method for the diagnosis of RA. The present invention relates to a method for the diagnosis of rheumatoid arthritis, comprising measuring the dipeptidyl peptidase activity in a sample collected from a mammal.
    Type: Application
    Filed: August 24, 2005
    Publication date: August 10, 2006
    Inventors: Tadahiko Hazato, Yukio Yamamoto, Yoshiro Yamamura
  • Opioid peptide-degrading enzyme inhibitor with a germanium compound
    Patent number: 4748187
    Abstract: The present invention provides (1) a new organogermanium compound of the following general formula: ##STR1## wherein A represents a hydrogen atom, a lower alkyl group such as a methyl or ethyl group or a phenyl group, B represents a hydrogen atom or a lower alkyl group as mentioned above and Z represents a hydroxyl or amino group and (2) an opioid peptide-degrading enzyme inhibitor containing the compound (1) as a principal ingredient.
    Type: Grant
    Filed: November 14, 1986
    Date of Patent: May 31, 1988
    Assignee: Asai Germanium Research Institute
    Inventors: Norihiro Kakimoto, Takashi Katayama, Tadahiko Hazato, Tsutomu Ohnishi
  • Organogermanium compound
    Patent number: 4681960
    Abstract: The present invention provides (1) a new organogermanium compound of the following general formula: ##STR1## wherein A represents a hydrogen atom, a lower alkyl group such as a methyl or ethyl group or a phenyl group, B represents a hydrogen atom or a lower alkyl group as mentioned above and Z represents a hydroxyl or amino group and (2) an opioid peptide-degrading enzyme inhibitor containing the compound (1) as a principal ingredient.
    Type: Grant
    Filed: July 2, 1984
    Date of Patent: July 21, 1987
    Assignee: Asai Germanium Research Institute
    Inventors: Norihiro Kakimoto, Takashi Katayama, Tadahiko Hazato, Tsutomu Ohnishi
  • Benzaldehyde and 4,6-O-benzylidene-D-glucose for alleviating pain
    Patent number: 4613588
    Abstract: Benzaldehyde and 4,6-O-benzylidene-D-glucose have been found to have analgesic activity. It is believed that this analgesic activity results from the inhibition of enkephalinase. Therefore benzaldehyde and 4,6-O-benzylidene-D-glucose are also useful for inhibiting enkephalinase in humans.
    Type: Grant
    Filed: June 28, 1985
    Date of Patent: September 23, 1986
    Assignee: Kaken Pharmaceutical Co. Ltd.
    Inventors: Takashi Katayama, Tadahiko Hazato