Patents by Inventor Takehiko Wakasa

Takehiko Wakasa 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).

  • Publication number: 20040224129
    Abstract: An easily applicable adhesive sheet which can be easily applied neatly in good adhesion with easy air removal at the time of application to an adherent and a producing method thereof. The easily applicable adhesive sheet has, on the surface of a substrate, an adhesive layer in which tapered concave grooves opened at the end edge of the substrate are disposed in a lattice shape oblique to the applying direction, and the adhesive layer has an area for the planar portion of 50 to 90%, a cut-in angle of the concave groove to the planar surface of 20 to 75°, a width for the opening at the upper surface of the concave groove of 10 to 80 &mgr;m and a depth of the concave groove of 5 to 50 &mgr;m. A method for producing an easily applicable adhesive sheet as described above applies an adhesive layer formed on a shape transfer face of a release liner to a substrate.
    Type: Application
    Filed: February 27, 2004
    Publication date: November 11, 2004
    Inventors: Satoshi Sakurai, Fumiaki Tsuzuki, Takehiko Wakasa