Patents by Inventor Yukuo Nagasawa

Yukuo Nagasawa 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).

  • Hairbrush
    Patent number: 5133103
    Abstract: A hairbrush includes a shell having a bottom plate with perforations through which bristles may extend. A bristled plate is provided within the shell and arranged so that the bristles may extend through the perforations. A lever may be manipulated to restrain the bristled plate so that the bristles extend through the perforation or to retract the bristled plate so that the bristles are contained within the shell.
    Type: Grant
    Filed: October 23, 1990
    Date of Patent: July 28, 1992
    Assignee: Somiel Products Co., Ltd.
    Inventor: Yukuo Nagasawa