Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11649414 | Synthetic vegetable oil and environmental-friendly flame-retardant hydraulic oil composition including the same, and preparation method thereof | Kwang-Soon Kim, Young Uk Kwon | 2023-05-16 |
| 9722523 | Inverter vector driving system and method for estimating capacitance using the same | Thanh Nguyen, Yoon-Cheul Jeung | 2017-08-01 |
| 9692311 | High-voltage direct current converter including a 12-pulse diode recitifier connected in series with a voltage-source converter | Chan-Ki Kim, Jin Young Kim, Thanh Nguyen | 2017-06-27 |
| 6545786 | Optical self-routing scheme with low optical loss and compact size | Sang Jo Park, Youn Jang, Phil Joo Moon | 2003-04-08 |
| 5983294 | Synchronous cross-connect system with the function of ring network interworking using backplane interconnection | Hong Ju Kim, Chang Ki Lee, Ho Geon KIM, Jong Hyun Lee | 1999-11-09 |
| 5799001 | Composite network protective/recovering device for synchronous digital hierarchy DXC | Jae Guen Kim, Ho Geon KIM, Ho-Jae Lee | 1998-08-25 |