Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12312528 | Etchant composition and manufacturing method of display device using the same | Jong Hee Park, Hyoung Sik Kim, Sang-Hyuk Lee, Yong-Hoe Kim, Young Kwang Kim +6 more | 2025-05-27 |
| 12312695 | Etchant composition, and method for manufacturing metal pattern and thin film transistor substrate using the same | Bong-Kyun Kim, Changwoo Kwon, Seungbo Shim, ILBAE AHN, Seokjun Jang +6 more | 2025-05-27 |
| 11407943 | Etching composition for thin film containing silver, method for forming pattern and method for manufacturing a display device using the same | Jonghee Park, Kitae Kim, Jinseock Kim, Gyu-Po Kim, Dae Woo Lee +1 more | 2022-08-09 |
| 11091694 | Etching composition, method for forming pattern and method for manufacturing a display device using the same | Jonghee Park, Kitae Kim, Jinseock Kim, Gyu-Po Kim, Dae Woo Lee +2 more | 2021-08-17 |
| 10611962 | Etchant composition and manufacturing method of metal pattern using the same | Jong Hee Park, Ki Tae Kim, Jin Seock KIM, Gyu-Po Kim, Dae Woo Lee +1 more | 2020-04-07 |
| 9136137 | Etchant composition and methods of fabricating metal wiring and thin film transistor substrate using the same | In-Bae Kim, Jong-Hyun Choung, Youngmin Moon, Hongsick Park, Gyu-Po Kim +4 more | 2015-09-15 |
| 8921230 | Etchant composition, and method of manufacturing a display substrate using the same | Hong-Sick Park, Young Jun Kim, Young Woo Park, Wang Woo Lee, Won-Guk Seo +4 more | 2014-12-30 |
| 8889032 | Metal wire etchant and method of forming metal wire using the same | Jong-Hyun Choung, In-Bae Kim, Seon-II Kim, Hong-Sick Park, Jae Woo Jeong +5 more | 2014-11-18 |
| 8377325 | Etchant for metal wiring and method for manufacturing metal wiring using the same | Nam-Seok Suh, Sun-Young Hong, Jong-Hyun Choung, Bong-Kyun Kim, Hong-Sick Park +7 more | 2013-02-19 |
| 8354288 | Etchant and method of manufacturing an array substrate using the same | Bong-Kyun Kim, Jong-Hyun Choung, Byeong-Jin Lee, Sun-Young Hong, Hong-Sick Park +5 more | 2013-01-15 |
| 8262928 | Etchant and method of manufacturing an array substrate using the same | Bong-Kyun Kim, Jong-Hyun Choung, Byeong-Jin Lee, Sun-Young Hong, Hong-Sick Park +5 more | 2012-09-11 |
| 7686968 | Composition for removing conductive materials and manufacturing method of array substrate using the same | Kye Chan Song, Jong-Il Kim, Kyoung-Mook Lee, Sam-Young Cho, Nam-Seo Kim | 2010-03-30 |
| 7398021 | Optical transmitter and passive optical network using the same | Hong-Seok Shin, Seong-Taek Hwang, Dae-Kwang Jung | 2008-07-08 |
| 7355785 | Gain-clamped semiconductor optical amplifier | Ho-In Kim, Jeong-Seok Lee, In-Kuk Yun, Seung-Woo Kim, Seong-Taek Hwang | 2008-04-08 |
| 7224519 | Low noise multi-wavelength light source and wavelength division multiplexing system using same | Jeong-Seok Lee, Seong-Taek Hwang, Dae-Kwang Jung | 2007-05-29 |
| 7110168 | Optical signal transmission apparatus including reflective gain-clamped semiconductor optical amplifier | Jeong-Seok Lee, Ho-In Kim, In-Kuk Yun, Seung-Woo Kim, Yun-Je Oh +1 more | 2006-09-19 |
| 7046435 | Reflective semiconductor optical amplifier | Jeong-Seok Lee, Ho-In Kim, In-Kuk Yun, Seung-Woo Kim, Seong-Taek Hwang | 2006-05-16 |