Patents by Inventor Tami Hanamori

Tami Hanamori 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 preparation controlled to release medicinal active ingredient at targeted site in intestinal tract
    Patent number: 5725880
    Abstract: A pharmaceutical preparation for oral administration which is controlled to release a medicinal active ingredient at a targeted site in the intestinal tract comprising (a) a core containing a medicinal active ingredient and (b) a press-coated layer comprising an enteric polymer, said layer being provided around the core. In the pharmaceutical preparation of the present invention, the medicinal active ingredient is not released during residence in the stomach and, after discharged from the stomach, until reaching a targeted site in the intestine, and thereafter is quickly released, so that the medicinal active ingredient is efficiently delivered to the targeted site in the intestinal tract.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: March 10, 1998
    Assignee: Tanabe Seiyaku Co., Ltd.
    Inventors: Yoshiyuki Hirakawa, Hiroyuki Yoshino, Eiji Fukui, Tami Hanamori
  • Pharmaceutical preparation controlled to release medicinal active ingredient at targeted site in intestinal tract
    Patent number: 5614220
    Abstract: A pharmaceutical preparation for oral administration comprising(a) a core containing a medicinal active ingredient,(b) a press-coated layer comprising a pH-independently water-soluble polymer, said layer being provided around the core and(c) a film comprising an enteric polymer, said film being provided around the press-coated layer. In the pharmaceutical preparation of the present invention, the medicinal active ingredient is not released during residence in the stomach and, after forwarded from the stomach, until reaching a targeted site in the intestine, and thereafter is quickly released, so that the medicinal active ingredient is efficiently delivered to the targeted site in the intestinal tract.
    Type: Grant
    Filed: February 9, 1995
    Date of Patent: March 25, 1997
    Assignee: Tanabe Seiyaku Co., Ltd.
    Inventors: Yoshiyuki Hirakawa, Hiroyuki Yoshino, Katsuji Uemura, Eiji Fukui, Tami Hanamori