Patents by Inventor Koji Nakazawa

Koji Nakazawa 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).

  • Apparatus for manufacturing a glass fiber chopped strand mat
    Patent number: 4161897
    Abstract: An apparatus for manufacturing a glass fiber chopped strand mat is disclosed, in which the dropping direction of chopped strands is detected at all times, so that whenever the dropping direction is varied, immediately the relative position of an axis of a feed roller and an axis of a cutter roller with respect to a stationary structure is displaced so as to correct the dropping direction thereby to uniformly accumulate the chopped strands on a conveyer means.
    Type: Grant
    Filed: August 24, 1977
    Date of Patent: July 24, 1979
    Assignee: Nitto Boseki Co., Ltd.
    Inventors: Koji Nakazawa, Toshiaki Kikuchi, Toshihito Fujita