Patents by Inventor Hirotsugu Masui

Hirotsugu Masui 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).

  • Method for recycling waste glass and recycled glass
    Publication number: 20050028556
    Abstract: Waste glass is pulverized into pulverized waste glass, and the pulverized waste glass is brought into contact with acid solution so that components such as sodium other than silicon oxide in the fine particle waste glass are dissolved in the acid solution and removed. With this, it is possible to remove components other than silicon dioxide from waste glass. Therefore it is possible to recycle waste glass so as to reuse the waste glass as a useful regenerated product that can be used for various purposes.
    Type: Application
    Filed: September 11, 2002
    Publication date: February 10, 2005
    Inventors: Tomoko Akai, Danping Chen, Hirotsugu Masui, Koji Kuraoka, Tetsuo Yazawa