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:
Aug. 26, 2008
Filed:
Oct. 08, 2004
Takeshi Nakayama, Katano, JP;
Yoshiyuki Saito, Katano, JP;
Toshiyuki Asahi, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The present invention provides a tamper resistant circuit board, an apparatus and method for aiding the design of the circuit board, a computer readable storage medium having stored therein a program for performing the method, and a mobile terminal containing the circuit board. The tamper resistant circuit board has a multilayer structure, including outermost substrates and an internal layer between the outermost substrates, and a signal line through which a confidential signal flows. The signal line is wired such as the confidential signal does not appear on the outer surfaces of the outermost substrates of the multilayer structure of the circuit board.