Hyun, Seung-Hak; Lee, Jea-Sung; Si, Sang-Man; Han, Keun-Hee; Kwon, Hyuck-Joo; Cho, Young-Jun; Yoon, Seung-Soo; Kim, Bong-Ok; Kim, Sung-Min; Kim, Chi-Sik; Choi, Il-Won
Patent: US2009/128010 A1, 2009 ;
Location in patent: Page/Page column 15 ;