Issued Patents All Time
Showing 51–69 of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7362502 | Surface reflection type metallic screen and method of manufacturing the same | — | 2008-04-22 |
| 7324277 | Both-side image film screen | — | 2008-01-29 |
| 7274509 | Wall roll-up screen | — | 2007-09-25 |
| 7227683 | Spherical reflective screen with focus and method for manufacturing the same | — | 2007-06-05 |
| 6646800 | Visual and audio system for theaters | — | 2003-11-11 |
| 6527372 | Method for optimizing driving input signal in an ink jet head using shape memory alloy | Myung-song Jung | 2003-03-04 |
| 6485210 | Clamshell device for printers | — | 2002-11-26 |
| 6481821 | Actuator for ink jet printer head using shape memory alloy | Sang Kyeong Yun, Sung June Park | 2002-11-19 |
| 6347860 | Printer head using shape memory alloy and method for manufacturing the same | — | 2002-02-19 |
| 6130689 | Apparatus and actuator for injecting a recording solution of a print head and method for producing the apparatus | — | 2000-10-10 |
| 6123414 | Apparatus for injecting a recording solution of a print head using phase transformation of thin film shape memory alloy | — | 2000-09-26 |
| 5915064 | Method and apparatus for automatically recognizing recording time for time-lapse videocassette recorder | — | 1999-06-22 |
| 5909230 | Recording apparatus using motional inertia of marking fluid | Kwang Kyun Jang | 1999-06-01 |
| 5132805 | Iris driving circuit | — | 1992-07-21 |
| 5122865 | Chroma key signal generator for a video editing apparatus | — | 1992-06-16 |
| 5111282 | Chrominance subcarrier generating circuit | — | 1992-05-05 |
| 5016091 | Automatic optical filter displacing circuit | — | 1991-05-14 |
| 5012341 | Noise reduction circuit for video control emphasis signal | — | 1991-04-30 |
| 4839926 | Cap with binoculars | — | 1989-06-20 |