Patents by Inventor Takashi Kitajima

Takashi Kitajima 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).

  • 1-Aminopyrrolidine or its salt as epoxy resin hardener
    Patent number: 6359036
    Abstract: A curing agent for epoxy resin which comprises at least one selected from 1-aminopyrrolidine and its salt.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: March 19, 2002
    Assignee: Otsuka Kagaku Kabushiki Kaisha
    Inventors: Yoshihisa Tomotaki, Takashi Kitajima, Keiichiro Ishikawa, Akihiro Nabeshima, Tomohiro Furuichi
  • Trimeric chimera protein and collagen matrix containing chimera protein
    Patent number: 6277600
    Abstract: Provision of a trimeric chimera protein which has sufficiently retained physiological activity of a physiologically active peptide simultaneously with fibril-forming ability of a collagen. A trimeric chimera protein comprising a collagen and a biologically active peptide fused to the collagen, wherein the biologically active peptide is fused on the side of the amino terminal of the collagen, and the collagen is a fibril-forming collagen having a triple helical structure in its triple helix region.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: August 21, 2001
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Masahiro Tomita, Takashi Kitajima