Patents by Inventor Dong Ha Song

Dong Ha Song 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
  • Handset for communication terminal
    Patent number: 7130418
    Abstract: Disclosed is a handset for a communication terminal that minimizes background noise, thereby increasing the clarity of transmitted voice communication. The terminal includes a handset, an acoustic signal path on the handset, a unidirectional condenser microphone within the handset, a microphone holder to secure the microphone within the handset, and a housing to encase the microphone. The microphone is arranged to receive an acoustic signal traveling through the acoustic signal path and within the housing.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: October 31, 2006
    Assignee: LG Electronics Inc.
    Inventors: Chul Jin Kim, Gi Ho Ha, Dong Ha Song
  • Handset for communication terminal
    Publication number: 20040136523
    Abstract: Disclosed is a handset for a communication terminal that minimizes background noise, thereby increasing the clarity of transmitted voice communication. The terminal includes a handset, an acoustic signal path on the handset, a unidirectional condenser microphone within the handset, a microphone holder to secure the microphone within the handset, and a housing to encase the microphone. The microphone is arranged to receive an acoustic signal traveling through the acoustic signal path and within the housing.
    Type: Application
    Filed: December 23, 2003
    Publication date: July 15, 2004
    Applicant: LG Electronics Inc.
    Inventors: Chul Jin Kim, Gi Ho Ha, Dong Ha Song