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:
Dec. 30, 2008
Filed:
Jul. 25, 2005
Yasunari Ooyabu, Osaka, JP;
Yasuhito Funada, Osaka, JP;
Hitoki Kanagawa, Osaka, JP;
Tetsuya Ohsawa, Osaka, JP;
Yasunari Ooyabu, Osaka, JP;
Yasuhito Funada, Osaka, JP;
Hitoki Kanagawa, Osaka, JP;
Tetsuya Ohsawa, Osaka, JP;
Nitto Denko Corporation, Osaka, JP;
Abstract
A wired circuit board that can prevent inconsistency in characteristic impedance to allow effective transmission of electrical signals from a magnetic head to a control board portion. A wired circuit board is constructed so that a suspension board portion for supporting the magnetic head and a control board portion for controlling the magnetic head are formed to be continuous and integral with each other. To be more specific, a first conductor layer connected to the magnetic head in the suspension board portion and a second conductor layer connected to a preamplifier IC in the control board portion are formed from the same material and formed on a common insulating base layer simultaneously. Further, a common insulating cover layer to cover the first conductor layer and the second conductor layer is formed on the common insulating base layer.