Patents by Inventor Akitoshi Shinbo

Akitoshi Shinbo 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).

  • Reverse osmosis process and equipment
    Patent number: 6303037
    Abstract: A reverse osmosis treatment of feed water containing at least silica and hardness ions for separating the feed water into permeate water and concentrate is effected while maintaining the pH of the concentrate at a level of at most 6. According to the foregoing process, silica can be prevented from precipitating, and a high recovery of permeate water can be secured.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: October 16, 2001
    Assignee: Organo Corporation
    Inventors: Makio Tamura, Akitoshi Shinbo