Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11751285 | Method and apparatus for connecting user terminals as a group and providing service including contents associated with the group | Jungjun Park, In Won Cho, Jongjin Cho | 2023-09-05 |
| 11343299 | Method and system for real time measuring quality of video call service | — | 2022-05-24 |
| 11337272 | Method and apparatus for connecting user terminals as a group and providing service including contents associated with the group | Jungjun Park, In Won Cho, Jongjin Cho | 2022-05-17 |
| 11268822 | Method and system for navigation using video call | Jungjun Park, Jongjin Cho, In Won Cho | 2022-03-08 |
| 11223662 | Method, system, and non-transitory computer readable record medium for enhancing video quality of video call | In Won Cho, Jungjun Park, Jongjin Cho | 2022-01-11 |
| 11032408 | Method and system for automatically connecting calls of voice over internet protocol (VOIP) service | Jungjun Park, Jongjin Cho, In Won Cho | 2021-06-08 |
| 10923465 | Semiconductor device having stacked semiconductor chips and method for fabricating the same | Won-Gi Chang, Myung-Sung Kang, Hyein Yoo | 2021-02-16 |
| 10895661 | Determination of near wellbore properties using natural gamma rays | Qingzhen Guo, Weijun Guo, Daniel F. Dorffer | 2021-01-19 |
| 10559869 | Base station interface device of distributed antenna system | — | 2020-02-11 |
| 10539414 | Determining tubing wall thickness | Weijun Guo | 2020-01-21 |
| 10386533 | Downhole tool apparatus, system, and methods | Weijun Guo | 2019-08-20 |
| 10370391 | Hydrogen peroxide-activable, anti-oxidant compounds and methods using same | Peter M. Kang, Seunggyu Park, Dahee Jeong | 2019-08-06 |
| 10354985 | Semiconductor device having stacked semiconductor chips and method for fabricating the same | Won-Gi Chang, Myung-Sung Kang, Hyein Yoo | 2019-07-16 |
| 10288749 | Photon collimation apparatus, methods, and systems | Yike Hu, Weijun Guo | 2019-05-14 |
| 10271044 | Method and system for checking video call quality of mobile terminal | Sun Young Park, Youngsik Kim | 2019-04-23 |
| 10244427 | Systems and methods for suppressing and/or concealing bandwidth reduction of VoIP voice calls | — | 2019-03-26 |
| 10240451 | Downhole tomographic imaging | Weijun Guo, Sriram Srinivasan | 2019-03-26 |
| 10012762 | Standoff determination | Zhijuan Zhang, Weijun Guo | 2018-07-03 |
| 10003119 | Base station interface device of distributed antenna system | — | 2018-06-19 |
| 9835731 | Detector packages | Weijun Guo | 2017-12-05 |
| 9812063 | Display apparatus, method and apparatus for controlling the same | Heechul Hwang | 2017-11-07 |
| 9759834 | Method and apparatus for downhole photon imaging | Weijun Guo | 2017-09-12 |
| 9690006 | Downhole logging system with azimuthal and radial sensitivity | Weijun Guo | 2017-06-27 |
| 9230721 | Method for preparing R-Fe-B-based rare earth magnetic powder for a bonded magnet, magnetic powder prepared by the method, method for producing a bonded magnet using the magnetic powder, and bonded magnet produced by the method | Ji Hun Yu, Junggoo Lee | 2016-01-05 |
| 6438608 | Declarative message addressing | Alexandros Biliris, Gisli Hjalmtysson, Hosagrahar Visvesvaraya Jagadish, Mark Jones, Inderpal Singh Mumick +3 more | 2002-08-20 |