Patents by Inventor Jun Akiwa

Jun Akiwa 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).

  • Patent number: 7232501
    Abstract: An adhesive sheet 301A having a predetermined form is laminated onto a long release sheet 2A, and a protective member 5A which is thicker than the adhesive sheet 301A is provided in a position so as not to overlap the adhesive sheet 301A when a laminate sheet 1A is wound into a roll. According to this laminate sheet 1A, defects can be prevented from forming on the adhesive sheet 301A when the laminate sheet 1A is wound into a roll.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: June 19, 2007
    Assignee: LINTEC Corporation
    Inventors: Kazuya Katoh, Jun Akiwa, Takehito Nakayama
  • Publication number: 20070036931
    Abstract: An adhesive sheet 301A having a predetermined form is laminated onto a long release sheet 2A, and a protective member 5A which is thicker than the adhesive sheet 301A is provided in a position so as not to overlap the adhesive sheet 301A when a laminate sheet 1A is wound into a roll. According to this laminate sheet 1A, defects can be prevented from forming on the adhesive sheet 301A when the laminate sheet 1A is wound into a roll.
    Type: Application
    Filed: October 10, 2006
    Publication date: February 15, 2007
    Applicant: LINTEC CORPORATION
    Inventors: Kazuya Katoh, Jun Akiwa, Takehito Nakayama
  • Patent number: 5972453
    Abstract: The present invention provides a removable window film for motor vehicles comprising a base film (1) and an adhesive layer (2) having removability and low adhesive strength and comprising a low adhesive strength type adhesive, wherein the adhesive layer (2) is formed on one surface of the base film. The removable window film for motor vehicles can be adhered to a glass window of a motor vehicle having a smooth surface, sufficiently held on the glass window after adhering, and easily peeled from the glass window of motor vehicles without damage to the window film or staining the glass window of the motor vehicle.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: October 26, 1999
    Assignee: Lintec Corporation
    Inventors: Jun Akiwa, Toshiaki Tozuka