[1]CurrentPatentAssignee:SEMICONDUCTORENERGYLABORATORYCO.,LTD.-US2012/71668,2012,A1Locationinpatent:Page/Pagecolumn252
[1]CurrentPatentAssignee:SEMICONDUCTORENERGYLABORATORYCO.,LTD.-US2012/71668,2012,A1Locationinpatent:Page/Pagecolumn254
[1]CurrentPatentAssignee:SEMICONDUCTORENERGYLABORATORYCO.,LTD.-US2012/165550,2012,A1Locationinpatent:Page/Pagecolumn20-21
[2]CurrentPatentAssignee:SEMICONDUCTORENERGYLABORATORYCO.,LTD.-US2012/165556,2012,A1Locationinpatent:Page/Pagecolumn36-37
[1]CurrentPatentAssignee:SEMICONDUCTORENERGYLABORATORYCO.,LTD.-US8231942,2012,B2