"Mesoporous metal oxide, method for preparing the same and hybrid supercapacitor comparing the same"
Inventor : E. Lim, C. Jo, H. Kim, K. Kang and J. Lee,
Korean patent field: 10-2014-0138532 (Oct. 14, 2014), patent number: 10-1578873 (Dec. 14, 2015), 2015