Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12380426 | Method of operating payment device for selectively enabling payment function according to validity of host | — | 2025-08-05 |
| 11847209 | Memory device and system | Gi Jin Kang, Jae-Keun Oh | 2023-12-19 |
| 11514436 | Biometric authentication smart card | Han-Ju Je | 2022-11-29 |
| 11036472 | Random number generator generating random number by using at least two algorithms, and security device comprising the random number generator | Sung-Kyoung Kim, Seung Won Lee | 2021-06-15 |
| 10853790 | Method of operating payment device for selectively enabling payment function according to validity of host | — | 2020-12-01 |
| 9004349 | IC card and IC card system having suspend/resume functions | Kikuchi Takashi | 2015-04-14 |
| 8870062 | IC card and IC card system having suspend/resume functions | Kikuchi Takashi | 2014-10-28 |
| 8783576 | Memory card having multiple interfaces and reset control method thereof | Jong-Sang Choi, Seong Hyun Kim, Sung Hyun Kim, Sang Bum Kim, Sang-Wook Kang +1 more | 2014-07-22 |
| 8616437 | IC card and IC card system having suspend/resume functions | Kikuchi Takashi | 2013-12-31 |
| 8443206 | Method and apparatus for managing digital rights using portable storage device | Byung-Rae Lee, Kyung-im Jung | 2013-05-14 |
| 8230234 | Semiconductor memory devices that are resistant to power attacks and methods of operating semiconductor memory devices that are resistant to power attacks | Gae Won Seo, Odile Derouet | 2012-07-24 |
| 8209535 | Authentication between device and portable storage | Byung-Rae Lee, Tae-Sung Kim, Kyung-im Jung | 2012-06-26 |
| 8065446 | Apparatus and method for discerning a host interface | Sang-Wook Kang, Seong Hyun Kim, Sang Bum Kim | 2011-11-22 |
| 8054972 | Encryption processor of memory card and method for writing and reading data using the same | Seong Hyun Kim, Sung Hyun Kim, Sang Bum Kim, Sang-Wook Kang, Chul-Joon Choi +3 more | 2011-11-08 |
| 8046502 | Device of identifying host protocol and smart card including the same | Seong Hyun Kim, Sang Bum Kim, Sang-Wook Kang, Jong-Sang Choi, Sung Hyun Kim +1 more | 2011-10-25 |
| 7870397 | Method and apparatus for managing digital rights of portable storage device | Byung-Rae Lee, Kyung-im Jung, Moon-sang Kwon, Shin-Han Kim, Jae Jin Choi | 2011-01-11 |
| 7805544 | Device of identifying host protocol and smart card including the same | Seong Hyun Kim, Sang Bum Kim, Sang-Wook Kang, Jong-Sang Choi, Sung Hyun Kim +1 more | 2010-09-28 |
| 7730115 | System, microcontroller and methods thereof | Kikuchi Takashi | 2010-06-01 |
| 7680272 | Inverse calculation circuit, inverse calculation method, and storage medium encoded with computer-readable computer program code | Sung Woo Lee | 2010-03-16 |
| 7543011 | Montgomery modular multiplier and method thereof using carry save addition | Hee-Kwan Son | 2009-06-02 |
| 7306140 | Integrated circuit card system and method thereof | Kikuchi Takashi, Jong-Sang Choi | 2007-12-11 |
| 7292060 | Logic circuit and method thereof | Elena Trichina | 2007-11-06 |