参考文献

RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE and TECHNOLOGY; BAIK, Joon Hyun; KOH, Jae Cheon; KIM, Kyong Tae; KOH, Dong Jun; SA, Young Sam; KIM, Yun Min; KIM, Chul Ung Patent: US2014/51880 A1, 2014 ; Location in patent: Paragraph 0103; 0110 ;