Patents by Inventor Masahiko Murakoshi

Masahiko Murakoshi 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).

  • Process for preparing improved cation-exchange membranes
    Patent number: 4042496
    Abstract: An improved cation-exchange membrane, onto which have been adhered fine particles of a crosslinked high molecular weight substance having anion-exchange groups and which can maintain a specific permselectivity for monovalent cations over a long period of time, is prepared with ease by treating a cation-exchange membrane with a suspension of fine particles of the said crosslinked high molecular weight substance.
    Type: Grant
    Filed: May 28, 1975
    Date of Patent: August 16, 1977
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Sakae Tsushima, Teruyuki Misumi, Masahiko Murakoshi