Patents by Inventor Isao kouchi

Isao kouchi 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).

  • Vapor washing process and apparatus
    Patent number: 5105556
    Abstract: Vapor is separated from mist accompanying the vapor by passing the vapor through a porous membrane. The vapor having passed through the membrane is brought into contact with an object to be washed and condenses thereon, whereby the object is washed.
    Type: Grant
    Filed: August 9, 1988
    Date of Patent: April 21, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Hideaki Kurokawa, Katsuya Ebara, Sankichi Takahashi, Harumi Matsuzaki, Hiroaki Yoda, Takahisa Nitta, Isao kouchi, Yukio Hishinuma