Patents by Inventor Takefumi Matsukura

Takefumi Matsukura 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).

  • Zinc-supplementary compositions for oral administration
    Publication number: 20020150629
    Abstract: A composition for providing zinc through oral administration comprises a mixture of a physiologically acceptable zinc salt and a dipeptide selected from the group consisting of L-carnosine, L-anserine, L-valenine and L-homocarnosine at a dipeptide to zinc molar ratio of at least 0.5, or a complex of zinc and the peptide, or a mixture of the dipeptide and the complex at a dipeptide to complex molar ratio of at least 0.5.
    Type: Application
    Filed: January 30, 2002
    Publication date: October 17, 2002
    Inventors: Yasuhiro Nishimura, Takefumi Matsukura
  • Crystalline L-carnosine zinc complex having antiulcer activity
    Patent number: 4981846
    Abstract: A novel crystalline L-carnosine zinc complex is produced by reacting L-carnosine, a zinc salt and an alkali metal compound in an anhydrous or hydrous polar organic solvent.The crystalline L-carnosine zinc complex substantially corresponds to the formula C.sub.9 H.sub.12 N.sub.4 O.sub.3 Zn and has physical properties clearly different from the known amorphous L-carnosine zinc complex.As compared with the amorphous complex, the crystalline complex is very low in impurity, stable to heat and moisture, and easy to filtrate, and has higher anti-ulcer activity.
    Type: Grant
    Filed: July 20, 1988
    Date of Patent: January 1, 1991
    Assignee: Hamari Chemicals, Ltd.
    Inventors: Takefumi Matsukura, Tamiko Takahashi, Yasuhiro Nishimura, Masahiro Takaya, Hajime Fujimura