Patents by Inventor Shigekatsu Fujii

Shigekatsu Fujii 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 forming a barb on a tip of a fishhook
    Patent number: 5542164
    Abstract: A method for forming a barb of a fishhook including the steps of pressing a thin flat portion of the tip and either cutting or chipping a part of the barb to form a rear face on a side opposite the tip of the hook. At least either upper or lower lateral sides of the hook tip may be cut to form flat or concave lateral cut faces with a sharp edge along a ridge at a juncture of the lateral cut faces.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: August 6, 1996
    Assignee: Gamakatsu Co., Ltd.
    Inventors: Shigekatsu Fujii, Naohiro Asada, Tomio Kubo
  • Fishhook having tip portion with upper and lower lateral cut faces and method of making the same
    Patent number: 5526603
    Abstract: A fishhook including a fishhook body and a tip portion having a hook tip and a barb and extending from said hook tip to said barb, the tip portion having upper lateral cut faces and lower lateral cut faces on upper and lower lateral sides thereof and sharp edges extending from said hook tip to said barb along ridges at junctures of the upper lateral cut faces and of said lower lateral cut faces.
    Type: Grant
    Filed: September 7, 1994
    Date of Patent: June 18, 1996
    Assignee: Gamakatsu Co., Ltd.
    Inventors: Shigekatsu Fujii, Naohiro Asada, Tomio Kubo