1
Jung Woo Park, Ki Wook Lee, Dong Wook Kim: Controller of doubly-fed induction generator. Korean Electro Technology Research Institute, Robert E Bushnell Esq, December 29, 2009: US07638983 (18 worldwide citation)

Disclosed is a controller of a grid coupled type doubly-fed induction generator having a multi-level converter topology, which can control the doubly-fed induction generator having a high voltage specification and can perform a fault ride-through function, an anti-islanding function and a grid volta ...


2
Kee Young Nam, Jae Duck Lee, Seong Hwan Jeong: Wireless communication based safer street lamp control system. Korean Electro Technology Research Institute, Robert E Bushnell Esq, September 7, 2010: US07791492 (10 worldwide citation)

Disclosed is a street lamp control system, which cuts off power sources only around an abnormal street lamp where an electric leakage or dangerous situation occurs and allows the rest street lamps to be kept being turned on. The street lamp control system is positioned in a region divided by a plura ...


3
Jong Uk Kim, Hae Young Choi: X-ray tube system with disassembled carbon nanotube substrate for generating micro focusing level electron-beam. Korean Electro Technology Research Institute, Robert E Bushnell Esq, July 22, 2008: US07403595 (1 worldwide citation)

Disclosed is an X-ray tube system with a disassembled carbon nanotube substrate for generating micro focusing level electron beams. A housing provides a vacuum space. An anode forms an electric field by a voltage applied from the outside and accelerates the electrons emitted from the cathode to reac ...