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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 |