The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2014
Filed:
Apr. 24, 2012
Yuichi Yokoyama, Nara, JP;
Yuichi Yokoyama, Nara, JP;
Panasonic Corporation, Kadoma-shi, JP;
Abstract
Lamination circuit board in which ground and conductor layers are laminated via an electrically insulating layer. Various configurations allow the ground layer to realize characteristic impedance matching in the circuit board: (a) One having at least a removal region where at least a projection region, being the conductor layer orthogonally projected onto the ground layer, is removed; (b) One in which in the lamination the conductor layer, a signal transmission line, and the ground layer are laminated in that order via the electrically insulating layer, and having at least a removal region where the conductor layer and the signal transmission line overlap; and (c) One in which in the lamination a signal transmission line, the ground layer, and the conductor layer are laminated in that order via the electrically insulating layer, and having at least a removal region where the conductor layer and the signal transmission line overlap.