Patents by Inventor Yuko Irie

Yuko Irie 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).

  • Avoiding pitch troubles using acylgerol lipase
    Patent number: 5176796
    Abstract: The method for avoiding pitch troubles includes the treatment with an acylglycerol lipase. The method of the present invention overcomes the pitch troubles in a process for the production of mechanical pulp and/or mechanical pulp-containing paper.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: January 5, 1993
    Assignee: Jujo Paper Co., Ltd.
    Inventors: Yuko Irie, Motoo Matsukura, Kunio Hata