Patents by Inventor Seishi Ikemoto

Seishi Ikemoto 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).

  • Method for molding 1,4,4a,9a-tetrahydroanthraquinone
    Patent number: 4795604
    Abstract: A method for molding 1,4,4a,9a-tetrahydroanthraquinone by cooling and solidifying a melt of 1,4,4a,9a-tetrahydroanthraquinone, which comprises contacting the melt with a cooling surface of a temperature of from about 50.degree. to about 80.degree. C. for solidification, and peeling off the solidified product.
    Type: Grant
    Filed: June 10, 1987
    Date of Patent: January 3, 1989
    Assignee: Kawasaki Kasei Chemicals Ltd.
    Inventors: Katsumi Matsuzaki, Kenji Usui, Seishi Ikemoto