Issued Patents All Time
Showing 26–50 of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9575404 | Virtual reality theater structure | — | 2017-02-21 |
| 9131166 | Audio-video system for sports cafes | — | 2015-09-08 |
| 9081271 | 3D image cinema system | — | 2015-07-14 |
| 8870379 | 3D image convertible projection optical system | — | 2014-10-28 |
| 8814367 | 3D image cinema system | — | 2014-08-26 |
| 8736098 | Symmetrical dual-structured wind power generation system | Jin-Hyun Choi | 2014-05-27 |
| 8570651 | Both side screen for combined use of 2D/3D images | — | 2013-10-29 |
| 8310756 | Window image projection screen | — | 2012-11-13 |
| 8279271 | Single channel stereoscopic monitor | — | 2012-10-02 |
| 8279475 | Printing apparatus and method for processing real-time command using the printing apparatus | Young Kyoo Cho | 2012-10-02 |
| 8248542 | Table type large-size imaging apparatus | — | 2012-08-21 |
| 8139290 | Two-way mirror screen system for advertisement | — | 2012-03-20 |
| 8130393 | Printing apparatus, control method therefor, and data processing apparatus using the printing apparatus | Young Kyoo Cho, Kyoung Hwan Na | 2012-03-06 |
| 8125578 | Table type bi-directional imaging apparatus | — | 2012-02-28 |
| 8023185 | Transmission screen for stereoscopic images | — | 2011-09-20 |
| 7969651 | Educational stereo microscopic image display apparatus | — | 2011-06-28 |
| 7966434 | Detailed description of the preferred embodiments | Young Kyoo Cho | 2011-06-21 |
| 7885002 | Floor projection screen and method for manufacturing the same | — | 2011-02-08 |
| 7864421 | Symmetrical projection screen | — | 2011-01-04 |
| 7845102 | Motion image advertising system coupled with advertising dummy | — | 2010-12-07 |
| 7826134 | High-definition sound-absorbing screen | — | 2010-11-02 |
| 7777946 | Bag type portable screen device | — | 2010-08-17 |
| 7623288 | High definition thin film reflective screen | — | 2009-11-24 |
| 7407294 | Multi-direction image viewing system | — | 2008-08-05 |
| 7405876 | Portable screen device with dual shaft structure | — | 2008-07-29 |