Patents by Inventor Kazuhiko Shimura

Kazuhiko Shimura 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).

  • Polyolefin solution using halogen group solvents
    Patent number: 5369165
    Abstract: A halogen group solvent comprising a mixed solvent consisting essentially of bromochloromethane and/or 1,2-dichloroethylene and a co-solvent, wherein the co-solvent is at least one member selected from the group consisting of carbon dioxide, sulfur hexafluoride, difluorochloromethane, 1,1,1,2-tetrafluoroethane, etc., and the content of said co-solvent in the mixed solvent is 3 to 65% by weight; a polyolefin solution using the solvent; and a process for producing a three-dimensional fiber of a polyolefin using the solution.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: November 29, 1994
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Jinichiro Kato, Toshio Yoneyama, Kazuhiko Shimura, Yoshiaki Nakayama, Kenji Kanekiyo
  • Process for producing three-dimensional fiber using a halogen group solvent
    Patent number: 5286422
    Abstract: A halogen group solvent comprising a mixed solvent consisting essentially of bromochloromethane and/or 1,2-dichloroethylene and a co-solvent, wherein the co-solvent is at least one member selected from the group consisting of carbon dioxide, sulfur hexafluoride, difluorochloromethane, 1,1,1,2-tetrafluoroethane, etc., and the content of said co-solvent in the mixed solvent is 3 to 65% by weight; a polyolefin solution using the solvent; and a process for producing a three-dimensional fiber of a polyolefin using the solution.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: February 15, 1994
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Jinichiro Kato, Toshio Yoneyama, Kazuhiko Shimura, Yoshiaki Nakayama, Kenji Kanekiyo