Patents by Inventor Mutsumi Kawabata

Mutsumi Kawabata 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 OF MANUFACTURING OPTICAL WAVEGUIDE FOR TOUCH PANEL
    Publication number: 20120107517
    Abstract: A method of manufacturing an optical waveguide for a touch panel is provided which achieves a small dimensional change due to heat to provide precise formation positions of a cladding layer and cores on a substrate. The method includes: selecting an elongated substrate made of stainless steel to continuously apply a first photosensitive resin composition; heating the first photosensitive resin composition to volatilize a solvent therein; irradiating the first photosensitive resin composition to form the cladding layer; continuously applying a second photosensitive resin composition; heating the second photosensitive resin composition to volatilize a solvent therein; and irradiating the second photosensitive resin composition with irradiation light through a photomask to expose the second photosensitive resin composition to the irradiation light, and thereafter dissolving away unexposed portions of the second photosensitive resin composition by using a developing solution.
    Type: Application
    Filed: October 19, 2011
    Publication date: May 3, 2012
    Applicant: NITTO DENKO CORPORATION
    Inventors: Naoki Shibata, Toru Mizutani, Yusuke Shimizu, Mutsumi Kawabata