Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11333349 | Fluid sand falling type circulating fluidized bed boiler with a plurality of risers and method of operating the same | Uen Do Lee, Byeong Ryeol Bang, Young-Doo Kim, Soo Hwa Jeong, Chang Won Yang +15 more | 2022-05-17 |
| 7866954 | Valve and micro fluid pump having the same | Duck Jong Kim, Yun-wook Hwang, Yu Chang Kim, Sang Jin Park, Eui-soo Yoon +1 more | 2011-01-11 |
| 6342747 | Wing type ultrasonic transducer | Yang-Lae Lee, Sang Jin Park, Jae Yun Kim, Eui-su Lim | 2002-01-29 |
| 6218768 | Power ultrasonic transducer | Yang-Lae Lee, Eui-su Lim | 2001-04-17 |
| 6073831 | Ultrasonic generator for minimizing heat input of magnetostrictive element and its manufacturing method | Yang-Lae Lee, Jae heyng Kim, Eui-su Lim | 2000-06-13 |
| 5914841 | Circuit for driving magnetostrictive device | Yang-Lae Lee, Jaeheyng Kim, Eui-su Lim | 1999-06-22 |