Patents by Inventor Ken Kitajima

Ken 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).

  • GLYCAN COMPOSITIONS, PROCESSES FOR PREPARING THE SAME AND THEIR USES AS A DRUG
    Publication number: 20150209408
    Abstract: Glycan compositions, processes for preparing the same and their uses as a drug.
    Type: Application
    Filed: July 30, 2013
    Publication date: July 30, 2015
    Inventors: Yann Guerardel, Ken Kitajima, Hitochi Sawada, Francis Megraud, Jonathan Ferrand
  • Sphingobacterium multivorum, mOL12-4s, produces deaminoneuraminidase and method for producing the same
    Patent number: 6001635
    Abstract: A strain of Sphingobacterium multivorum, mOL12-4s, is disclosed which produces deaminoneuraminidase in high yields. The deaminoneuraminidase produced by mOL12-4s does not act on the ketosidic linkages of N-acetylneuraminic acid or N-glycolylneuraminic acid containing complex carbohydrates, but only on ketosidic linkages of deaminoneuraminic acid containing complex carbohydrates.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: December 14, 1999
    Assignee: Seikagaku Corporation
    Inventors: Yasuo Inoue, Sadako Inoue, Ken Kitajima
  • KDN-specific deminoneuraminidase from Sphingobacterium multivorum
    Patent number: 5834288
    Abstract: The bacterium Sphingobacterium multivorum has been cultivated to produce a deaminoneuraminidase which is specific for catalyzing the hydrolysis of the ketosidic linkage formed by deaminoneuraminic acid in complex carbohydrates. The deaminoneuraminidase does not catalyze the hydrolysis of either the ketosidic linkage formed by N-acetylneuraminic acid or the ketosidic linkage formed by n-glycolylneuraminic acid and complex carbohydrates.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: November 10, 1998
    Assignee: Seikagaku Corporation
    Inventors: Yasuo Inoue, Sadako Inoue, Ken Kitajima