Patents by Inventor Naomi Seko

Naomi Seko 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 exchange membrane preparation and use thereof
    Patent number: 4151053
    Abstract: Cation exchange membrane comprising a fluorocarbon polymer characterized by the presence of pendant carboxylic acid groups of the formula -- OCF.sub.2 COOH -- and derivatives thereof.
    Type: Grant
    Filed: March 17, 1978
    Date of Patent: April 24, 1979
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Naomi Seko, Yasumichi Yamakoshi, Hirotsugu Miyauchi, Mitsunobu Fukumoto, Kyoji Kimoto, Itaru Watanabe, Toshioki Hane, Sakae Tsushima