Patents by Inventor Y?uichi Fukushige

Y?uichi Fukushige 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).

  • Photopolymerizable composition and recording material using same
    Patent number: 6846605
    Abstract: The present invention provides a photopolymerizable composition and a recording material using the photopolymerizable composition, which contains a polymerizable compound having an ethylenic unsaturated group, an organic borate and a cationic compound that interacts with the organic borate. The organic borate is represented by the following formula (1) wherein R1 represents an alkyl group, R2 represents an electron-donating group, R3 to R6 each represent a hydrogen atom or a substituent, the sum of Hammett's substituent constants ? of R2 to R6 is 0 to 1, and Z+ represents a group that can form a cation. The organic borate has a melting point of no more than 100° C.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: January 25, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yūuichi Fukushige, Yoshimitsu Arai, Masatoshi Yumoto