Patents by Inventor Hiroaki Maruoka

Hiroaki Maruoka 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).

  • Patent number: 5882522
    Abstract: The present invention offers a method for recovering the paints suitable to an object that, in a booth for a spray coating used for coating a material, the oversprayed paints can be easily recovered and recycled as they are or after a simple adjustment as reusable paints and it also offers a receiver used for said recovery. A method for recovering paints, characterized in that, a receiver using an ultrafiltration membrane or a microfiltration membrane is placed in a spray coating booth and water or organic solvent is contacted the one side of said membrane so that the oversprayed paint are received on the other side of said membrane and recovered therefrom; and a receiver for recovering paints, characterized in that, said receiver has two or more hollow fiber membranes arranged on a plate where at least one end of the membranes is open, with a fixing material which fixes and holds the hollow fiber membranes on the plate and distributing pipes connecting to the open end of each of the hollow fiber membrane.
    Type: Grant
    Filed: September 9, 1997
    Date of Patent: March 16, 1999
    Assignees: Asahi Kasei Kogyo Kabushiki Kaisha, Shinto Paint Co. Ltd.
    Inventors: Koichi Matsumoto, Koryo Ito, Tetsuya Hirota, Hiroaki Maruoka