Patents by Inventor Kunitaka Fujiwara

Kunitaka Fujiwara 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).

  • Modified chlorinated polypropylene, process for producing the same and use thereof
    Patent number: 5430093
    Abstract: A modified chlorinated polypropylene which has superior properties is obtained by the reaction of a chlorinated polypropylene having a molecular weight in the range of from 5,000 to 500,000 with a polyurethane having a molecular weight in the range of from 600 to 200,000. The modified chlorinated polypropylene exhibits excellent adhesion to various kinds of base film and a satisfactory performance with respect to such after-treatments as lamination, boiling and retort processes, and therefore is useful as a binder resin for printing ink or other coating compositions.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: July 4, 1995
    Assignee: Sakata Inkusu Kabushikikaisha
    Inventors: Takahito Miyamoto, Kunitaka Fujiwara, Masanori Kano, Takahiko Inoue
  • Process for detecting the completion of the sterilizing treatment using a color changing indicator composition
    Patent number: 4015937
    Abstract: Process for detecting the completion of a gaseous alkylene oxide sterilization treatment of medical or surgical equipment by the color change of particular azo dye indicators.
    Type: Grant
    Filed: November 14, 1975
    Date of Patent: April 5, 1977
    Assignee: Sakata Shokai Ltd.
    Inventors: Kozo Miyamoto, Kunitaka Fujiwara