Patents by Inventor Yoshihisa Yotsumoto

Yoshihisa Yotsumoto 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).

  • Remedies for hepatitis C
    Patent number: 7101551
    Abstract: The present invention provides a substance which inhibits the binding between E2/NS1 protein of hepatitis C virus and a cell infectious with hepatitis C virus, a cell expressing CD81, or CD81. The present invention can provide a novel medicament which has an anti-viral effects such as an inhibitory action against HCV infection.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: September 5, 2006
    Assignees: Mitsubishi Pharma Corporation, Japan as Represented by Director General of Agency of National Institute of Infectious Diseases
    Inventors: Seima Itami, Tatsurou Shibui, Makoto Seki, Yoshihisa Yotsumoto, Yoshiharu Matsuura, Tatsuo Miyamura
  • Remedies for hepatitis c
    Publication number: 20030157132
    Abstract: The present invention provides a substance which inhibits the binding between E2/NS1 protein of hepatitis C virus and a cell infectious with hepatitis C virus, a cell expressing CD81, or CD81. The present invention can provide a novel medicament which has an anti-viral effects such as an inhibitory action against HCV infection.
    Type: Application
    Filed: November 26, 2002
    Publication date: August 21, 2003
    Inventors: Seima Itami, Tatsurou Shibui, Makoto Seki, Yoshihisa Yotsumoto, Yoshiharu Matsuura, Tatsuo Miyamura
  • Protein having nitrile hydratase activity obtained from rhizobium, gene encoding the same, and a method for producing amides from nitriles via a transformant containing the gene
    Patent number: 5314819
    Abstract: A novel water-soluble enzyme protein being composed of three heterogeneous subunits and having nitrile hydratase activity was separated and purified from the bacterium of genus Rhizobium. The nucleotide sequence of the gene encoding the protein was determined; using the transformant transformed with the expression vector having the nucleotide sequence, the protein was expressed; by reacting the transformant with a nitrile in a culture broth, the corresponding amide was produced.Via the use of a culture broth containing the transformant described above or the protein itself, a nitrile can be efficiently converted into the corresponding amide.
    Type: Grant
    Filed: April 27, 1993
    Date of Patent: May 24, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Kazunori Yamada, Masanori Ochiai, Yoshihisa Yotsumoto, Yuuki Morimoto, Yutaka Teranishi