Patents by Inventor Tatsuhito Fujimura

Tatsuhito Fujimura 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).

  • CAMELLIA SINENSIS GENE ENCODING A CAFFEINE SYNTHESIS ASSOCIATED N-METHYL TRANSFERASE WITH 7-METHYLXANTHINE N3 METHYL TRANSFERASE, THEOBROMINE N1 METHYL TRANSFERASE, AND PARAXANTHINE N3 METHYL TRANSFERASE ACTIVITIES AND USE THEREOF
    Patent number: 6930227
    Abstract: The present invention makes it possible to efficiently produce an N-methyl transferase with 7-methylxanthine N3 methyl transferase, theobromine N1 methyl transferase, and paraxanthine N3 methyl transferase activities that can be utilized as an industrial, food, or medical enzyme. In addition, the present invention makes it possible to modify the caffeine biosynthesis metabolism of caffeine producing plants, plant tissues, or plant cells, thereby efficiently producing caffeine metabolism based compounds or modifying the production of caffeine in the plants.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: August 16, 2005
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Misako Mizuno, Hiroshi Ashihara, Kouichi Mizuno, Tatsuhito Fujimura
  • Method of producing rice cybrid cells
    Patent number: 5360725
    Abstract: A method of producing rice cybrid cells includes the steps of irradiating with X-rays to first rice protoplasts containing a first useful gene in the cytoplasm thereof to selectively destroy the nuclei thereof only; treating second rice protoplasts containing a second useful gene in the nucleus thereof with about 10 - 30 mM of iodoacetamide, about 0.1 - 0.5 mM Rhodamine 6G or about 10 - 30 mM iodoacetate to selectively deactivate the cytoplasm; and fusing the treated first and second protoplasts to form cybrid cells which have only the nucleus containing the first useful gene and have only the cytoplasm containing the second useful gene.
    Type: Grant
    Filed: May 10, 1993
    Date of Patent: November 1, 1994
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Hiromori Akagi, Masahiro Sakamoto, Tatsuhito Fujimura
  • Method of culturing protoplasts
    Patent number: 5166068
    Abstract: Disclosed is a method of culturing protoplasts in a liquid medium. According to the method, the protoplasts are cultured in a liquid medium layer having a thickness of about 100 to about 400 .mu.m.
    Type: Grant
    Filed: May 21, 1986
    Date of Patent: November 24, 1992
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Tatsuhito Fujimura, Motoi Sakurai
  • Method of culturing protoplasts
    Patent number: 4880744
    Abstract: Disclosed is a method of culturing protoplasts in a liquid medium. According to the method of the present invention, the pH of the liquid medium for culturing the protoplasts is adjusted to not more than 5.2.
    Type: Grant
    Filed: May 21, 1986
    Date of Patent: November 14, 1989
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Tatsuhito Fujimura, Motoi Sakurai