Patents by Inventor Seiki Fukunaga

Seiki Fukunaga 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).

  • Dialkylthioxanthones
    Patent number: 4450279
    Abstract: The present invention relates to a dialkylthioxanthone compound of formula (I): ##STR1## wherein X and Y may be the same or different, and represent a straight-chain or branched alkyl group having 1-12 carbon atoms with a proviso that sum of carbon atoms of alkyl groups X and Y is in the range of 3-15; a process for producing said compound; a process for hardening a photopolymerizable resin compound having an ethylenically unsaturated double bond which is radically crosslinkable or polymerizable using the above compound; and a photopolymerizable resin composition containing the same.
    Type: Grant
    Filed: March 2, 1982
    Date of Patent: May 22, 1984
    Assignee: Nippon, Kayaku, Kabushiki, Kaisha
    Inventors: Tsutomu Shirosaki, Seiki Fukunaga