Patents by Inventor Nobuya Miyachi

Nobuya Miyachi 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).

  • Microorganisms producing 5-aminolevulinic acid and processes for producing 5-aminolevulinic acid by using the same
    Patent number: 6342377
    Abstract: Microorganisms producing 5-aminolevulinic acid which show a 5-aminolevulinic acid synthetase activity of 2 to 7 (nmol/min/mg protein) under aerobic culture conditions with a dissolved oxygen concentration of 0.70 to 6.60 ppm; a process for producing 5-aminolevulinic acid characterized by culturing one or more microorganisms and harvesting 5-aminolevulinic acid from the obtained culture; a process for producing 5-aminolevulinic acid characterized by culturing 5-aminolevulinic acid-producing microorganisms in a medium containing 5 to 500 &mgr;M of iron components; and a method for culturing 5-aminolevulinic acid-producing microorganisms.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: January 29, 2002
    Assignees: Cosmo Research Intitute, Cosmo Oil Co., Ltd.
    Inventors: Seiji Nishikawa, Tohru Tanaka, Tomomi Kaminaga, Kikuo Watanabe, Nobuya Miyachi, Keitaro Watanabe, Yasushi Hotta