Patents by Inventor Manabu Igawa

Manabu Igawa 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 removing electrolyte
    Patent number: 4769152
    Abstract: A process for removing electrolyte comprising forming a compartment for dealing with a liquid by juxtaposed arrangement of a first barrier across or through which a cation can be exchanged for hydrogen ion and a second barrier across or through which an anion can be exchanged for hydroxyl ion, forming a passage for acid solution outside the first barrier, forming a passage for alkaline solution outside the second barrier and inserting the liquid containing electrolyte into the compartment.
    Type: Grant
    Filed: February 5, 1987
    Date of Patent: September 6, 1988
    Assignee: Nitto Electric Industrial Co., Ltd.
    Inventors: Manabu Igawa, Kiyoyuki Echizenya, Takashi Hayashita, Manabu Seno