M Takahashi, Y Saito, M Junpei, T Moriwaka… - US Patent …, 2016 - Google Patents
5,871,866 A 2f1999 Barker et al. 5,910,382 A 6/1999 Goodenough et al. 6,085,015 A 7/2000
Armand et al. 6,193,814 B1* 2/2001 Baldi............................ 148,240 6,514,640 B1 2/2003 …