Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9853953 | Method of transferring rights object and electronic device | Yeo-jin Kim, Sang Gyoo SIM, Kyung-im Jung, Ji Soo Kim | 2017-12-26 |
| 9152772 | Device and portable storage device which are capable of transferring rights object, and a method of transferring rights object | Sang Gyoo SIM, Yeo-jin Kim | 2015-10-06 |
| 9098684 | Device and portable storage device which are capable of transferring rights object, and a method of transferring rights object | Sang Gyoo SIM, Yeo-jin Kim | 2015-08-04 |
| 8955158 | Method and apparatus for transmitting rights object information between device and portable storage | Tae-Sung Kim, Kyung-im Jung, Shin-Han Kim | 2015-02-10 |
| 8918640 | Apparatus and method for using secure removable media (SRM) in digital rights management | — | 2014-12-23 |
| 8850192 | Apparatus and method for using contents information in digital rights management | Seong Choi, Jung-Hun Park | 2014-09-30 |
| 8677498 | Apparatus and method of managing security data | Yeo-jin Kim, Sang Gyoo SIM, Kyung-im Jung, Ji Soo Kim | 2014-03-18 |
| 8661430 | Device and portable storage device which are capable of transferring rights object, and a method of transferring rights object | Sang Gyoo SIM, Yeo-jin Kim | 2014-02-25 |
| 8646061 | Method and apparatus for transmitting rights object information between device and portable storage | Tae-Sung Kim, Kyung-im Jung, Shin-Han Kim | 2014-02-04 |
| 8438112 | Host device, portable storage device, and method for updating meta information regarding right objects stored in portable storage device | Sang-sin Jung, Kyung-im Jung, Moon-sang Kwon | 2013-05-07 |
| 8340297 | Method and apparatus for efficiently providing location of contents encryption key | Yeo-jin Kim, Sang Gyoo SIM, Kyung-im Jung, Ji Soo Kim | 2012-12-25 |
| 8321665 | Apparatus and method for using contents information in digital rights management | Seong Jae Choi, Jung-Hun Park | 2012-11-27 |
| 8286235 | Apparatus and method for managing rights object | Yeo-jin Kim, Kyung-im Jung | 2012-10-09 |
| 8261073 | Digital rights management method and apparatus | Sang Gyoo SIM, Suk-bong Lee, Yeo-jin Kim, Kyung-im Jung, Ji Soo Kim | 2012-09-04 |
| 8196208 | Method and apparatus for creating and applying secure file identifier of rights object by using random numbers | Yeo-jin Kim, Sang Gyoo SIM, Kyung-im Jung, Ji Soo Kim | 2012-06-05 |
| 8191129 | Apparatus and method for processing digital rights object | Tae-Sung Kim, Kyung-im Jung, Shin-Han Kim | 2012-05-29 |
| 8181266 | Method for moving a rights object between devices and a method and device for using a content object based on the moving method and device | Kyung-im Jung, Jae Jin Choi | 2012-05-15 |
| 8180709 | Method and device for consuming rights objects having inheritance structure in environment where the rights objects are distributed over plurality of devices | Suk-bong Lee, Kyung-im Jung | 2012-05-15 |
| 8176322 | Apparatus and method for moving and copying rights objects between device and portable storage device | Byung-Rae Lee, Tae-Sung Kim, Kyung-im Jung, Shin-Han Kim | 2012-05-08 |
| 8161524 | Method and portable storage device for allocating secure area in insecure area | Sang-sin Jung, Moon-sang Kwon, Kyung-im Jung | 2012-04-17 |
| 8032941 | Method and apparatus for searching for rights objects stored in portable storage device object identifier | Sang-sin Jung, Moon-sang Kwon, Kyung-im Jung | 2011-10-04 |
| 8023652 | Apparatus and method for implementing digital rights management systems in low-efficiency storage device | Kyung-im Jung, Sang Gyoo SIM, Suk-bong Lee | 2011-09-20 |
| 8006084 | Apparatus and method for managing plurality of certificates | Sang Gyoo SIM, Suk-bong Lee, Kyung-im Jung | 2011-08-23 |
| 8005118 | Method and apparatus for implementing secure clock in device having no internal power source | Sang Gyoo SIM, Kyung-im Jung, Suk-bong Lee | 2011-08-23 |
| 7937746 | Apparatus and method for hierarchically connecting devices | Sang Gyoo SIM | 2011-05-03 |