Patents by Inventor Akinori Jyo

Akinori Jyo 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).

  • Cation exchangers or chelating agents and process for the preparation thereof
    Patent number: 6410656
    Abstract: A cation exchanger or a chelating agent having at least structural units represented by the following formula (I), the structural units being derived from a crosslinkable monomer containing an unsaturated hydrocarbon group: wherein A represents a C3-C8 alkylene group or a C4-C9 alkoxymethylene group; L represents SO3−X+, where X+ is a counter ion coordinated with the SO3− group, or a chelate-forming functional group; and the benzene ring may be substituted with an alkyl group or a halogen atom.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: June 25, 2002
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hirohisa Kubota, Katsuhiko Yano, Junya Watanabe, Akinori Jyo