Patents by Inventor Tetsuo Nagai

Tetsuo Nagai 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).

  • Adhesive tape
    Publication number: 20030026977
    Abstract: A manufacturing method of adhesive tape, comprising steps of: preparing a raw material of a biaxially drawn film or sheet; applying a release agent on a back surface of the film; applying an adhesive agent on a front surface of the film; subjecting the raw material to uniaxial drawing under heated conditions without deteriorating releasing and adhesive performance of the raw material to produce a base material of an adhesive tape having high-strength and low-elongation. The obtained adhesive tape has long and narrow bubbles elongated in the uniaxial drawing direction thereon.
    Type: Application
    Filed: September 27, 2002
    Publication date: February 6, 2003
    Applicant: Seiya ISHIZAWA and Tomoaki ISHIZAWA
    Inventors: Seiya Ishizawa, Tomoaki Ishizawa, Kinichi Yazawa, Tetsuo Nagai
  • Process of making adhesive tape
    Patent number: 6478999
    Abstract: A manufacturing method of adhesive tape, by preparing a raw material of a biaxially or non-drawn, film or sheet on the back surface of which a release agent has been applied and to the which an adhesive agent has been applied, and subjecting the raw material to uniaxial drawing under heated conditions without deteriorating releasing and adhesive performance of the raw material, thus producing an adhesive tape having high-strength and low-elongation. The obtained adhesive tape has long and narrow bubbles elongated in the uniaxial drawing direction thereon.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: November 12, 2002
    Inventors: Seiya Ishizawa, Tomoaki Ishizawa, Kinichi Yazawa, Tetsuo Nagai