Patents by Inventor Yuta YAMAMURO

Yuta YAMAMURO 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).

  • OPTICAL SHEET FORMING APPARATUS AND OPTICAL SHEET FORMING METHOD
    Publication number: 20190047186
    Abstract: An optical sheet forming technique includes an extrusion unit having a discharge slit, a forming roll unit having rolls rotatable about rotation axes, a thick portion forming groove provided in the forming roll unit, and a position adjustment mechanism which adjusts a position of a discharge slit with respect to the thick portion forming groove. In a discharged molten resin, a neck-in portion caused by a neck-in phenomenon is continuously formed in an extrusion direction. The neck-in portion is positioned to be opposed to the thick portion forming groove by the position adjustment mechanism.
    Type: Application
    Filed: October 17, 2018
    Publication date: February 14, 2019
    Applicant: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Koji MIZUNUMA, Daichi YUKAWA, Yuta YAMAMURO