Patents by Inventor Kye-hee WOO

Kye-hee WOO 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).

  • Three dimensional pattern printing device and method for manufacturing micro-optical film structure by using same
    Patent number: 10857779
    Abstract: A stereoscopic pattern apparatus includes a base roller and a retrieving roller, a fine pattern hardening roller, an ink inserting roller and a convex pattern hardening roller. The base roller and the retrieving roller respectively provide and retrieve a base film. The fine pattern hardening roller is disposed between the base and retrieving rollers, and forms a lower hardening layer on the base film. A fine pattern is formed on the lower hardening layer. The ink inserting roller is disposed between the fine pattern hardening roller and the retrieving roller, and inserts an ink into the fine pattern. The convex pattern hardening roller is disposed between the ink inserting roller and the retrieving roller, and forms an upper hardening layer on the lower hardening layer. A convex lens is uniformly formed on the upper hardening layer.
    Type: Grant
    Filed: May 29, 2017
    Date of Patent: December 8, 2020
    Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Sin Kwon, Dong-ha Song, Kye-hee Woo, Yun-seok Jang, Seung-hyun Lee, Taik-min Lee
  • THREE DIMENSIONAL PATTERN PRINTING DEVICE AND METHOD FOR MANUFACTURING MICRO-OPTICAL FILM STRUCTURE BY USING SAME
    Publication number: 20180304611
    Abstract: A stereoscopic pattern apparatus includes a base roller and a retrieving roller, a fine pattern hardening roller, an ink inserting roller and a convex pattern hardening roller. The base roller and the retrieving roller respectively provide and retrieve a base film. The fine pattern hardening roller is disposed between the base and retrieving rollers, and forms a lower hardening layer on the base film. A fine pattern is formed on the lower hardening layer. The ink inserting roller is disposed between the fine pattern hardening roller and the retrieving roller, and inserts an ink into the fine pattern. The convex pattern hardening roller is disposed between the ink inserting roller and the retrieving roller, and forms an upper hardening layer on the lower hardening layer. A convex lens is uniformly formed on the upper hardening layer.
    Type: Application
    Filed: May 29, 2017
    Publication date: October 25, 2018
    Inventors: Sin KWON, Dong-ha SONG, Kye-hee WOO, Yun-seok JANG, Seung-hyun LEE, Taik-min LEE