Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8261073 | Digital rights management method and apparatus | Yun-sang Oh, Sang Gyoo SIM, Yeo-jin Kim, Kyung-im Jung, Ji Soo Kim | 2012-09-04 |
| 8180709 | Method and device for consuming rights objects having inheritance structure in environment where the rights objects are distributed over plurality of devices | Yun-sang Oh, Kyung-im Jung | 2012-05-15 |
| 8023652 | Apparatus and method for implementing digital rights management systems in low-efficiency storage device | Yun-sang Oh, Kyung-im Jung, Sang Gyoo SIM | 2011-09-20 |
| 8005118 | Method and apparatus for implementing secure clock in device having no internal power source | Sang Gyoo SIM, Yun-sang Oh, Kyung-im Jung | 2011-08-23 |
| 8006084 | Apparatus and method for managing plurality of certificates | Yun-sang Oh, Sang Gyoo SIM, Kyung-im Jung | 2011-08-23 |