JW Raring, N Pfister, M Schmidt, C Poblenz - US Patent 8,355,418, 2013 - Google Patents
7.923, 741 B1 4, 2011 Zhai et all-4- 2009, 0081857 A1 3f2009 Hanser et al. 7,939,354 B2
5/2011 Kyono et al. 7968.864 B2 6, 2011 Akita et al. 2009/0081867 A1 3, 2009 Taguchi et …