Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11384108 | Transition metal compound for olefin polymerization catalyst, olefin polymerization catalyst including same, and polyolefin polymerized by using olefin polymerization catalyst | Lan Hua Piao, Hee Ju Yang, Na Young Park, Wook Jeong | 2022-07-12 |
| 11254759 | Transition metal compound for olefin polymerization catalyst, and olefin polymerization catalyst including same | Na Young Park, Hyung Seung Lee, Lan Hua Piao, Wook Jeong | 2022-02-22 |
| 11236186 | Transition metal compound for olefin polymerization catalyst, olefin polymerization catalyst comprising same, and polyolefin polymerized using same | Hyun Seung Lee, Na Young Park, Hee Ju Yang, Sung-Cheol Yoon | 2022-02-01 |
| 9129615 | Tilt adjusting apparatus and optical disc drive using the same | — | 2015-09-08 |
| 9082445 | Disc chucking structure and optical disc drive including the same | Byung-yeob Park, Bo-won Hwang, Jeong-hun Choe | 2015-07-14 |
| 8713587 | Optical disc drive having a tray for loading a disc using supporting portions | Young-sun Jung, Hyoung-woo Jo, Sung-ryool Yi | 2014-04-29 |
| 8683500 | Optical disc drive including guide shaft supporting structure | Heon-seung Yu | 2014-03-25 |
| 5802022 | Disk changer for checking the position of disks on a roulette without drawing a tray out of the disk changer | Chang Seok Kim, Jae Hyun Yoon, Ho-Han Ryu | 1998-09-01 |
| 5331624 | Pickup feed mechanism | — | 1994-07-19 |