Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12247267 | Method of producing lithium hydroxide from lithium concentrate through sodium sulfate addition and roasting | Min-Woo Lee, Suk-Joon Park, Myung Gyu Lee, Jong Sun Park, Da Mo A KIM | 2025-03-11 |
| 11591843 | Connective installation structure for modularized windows and doors | — | 2023-02-28 |
| 10047552 | Moving window installation structure of sliding window system having aluminum alloy sash structure | — | 2018-08-14 |
| 10030422 | Door hinge height adjusting device for rotating door | — | 2018-07-24 |
| 9589304 | Method and system of providing social network services associated with management of personal connections and off-line activity by applying life cycle concept of creature | Chang Su Ryu, Jae Chan Lee | 2017-03-07 |
| 9512656 | Sliding window installation structure including door guide frame having separable segment structure | — | 2016-12-06 |
| 9466703 | Method for fabricating semiconductor device | Seung Hyun Song, Nak-Jin Son, Chang Wook Jeong, Ui Hui Kwon, Dong Won Kim +2 more | 2016-10-11 |
| 8793877 | Apparatus for manufacturing truss structure using multi-point pins, method of manufacturing truss structure using the same, truss core sandwich panel having the truss structure, method of manufacturing the truss core sandwich panel | Sang Woo Kim, Daeyong Kim, Ji Hoon Kim, Youngseon Lee, Yong Nam Kwon +1 more | 2014-08-05 |
| 8093098 | Post-processing treatment of conductive polymers to enhance electrical conductivity | Yueh-Lin Loo, Joung-Eun Yoo | 2012-01-10 |