Patents by Inventor Shiho Shimizu

Shiho Shimizu 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).

  • Process for preparing FR900482 and compounds analogous thereto
    Patent number: 6423530
    Abstract: A process for producing a compound of the general formula (I): (wherein R1 represents hydrogen, a lower alkanoyl group or a lower alkyl group; R2 and R3 each represents hydrogen or a lower alkanoyl group) characterized in that a compound of the general formula (II): (wherein R1, R2 and R3 are respectively as defined above) is reacted with a culture of a strain of microorganism belonging to the genus Fusarium or its cells harvested by filtering the broth.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: July 23, 2002
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masaru Tsuboi, Shiho Shimizu, Michio Yamashita, Yasuhisa Tsurumi, Seiji Hashimoto
  • Process for preparing FR900482 and compounds analogous thereto
    Patent number: 6204031
    Abstract: A process for producing a compound of the general formula (I): (wherein R1 represents hydrogen, a lower alkanoyl group or a lower alkyl group; R2 and R3each represents hydrogen or a lower alkanoyl group) characterized in that a compound of the general formula (II): (wherein R1, R2 and R3 are respectively as defined above) is reacted with a culture of a strain of microorganism belonging to the genus Fusarium or its cells harvested by filtering the broth.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: March 20, 2001
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masaru Tsuboi, Shiho Shimizu, Michio Yamashita, Yasuhisa Tsurumi, Seiji Hashimoto