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:
Feb. 12, 2002
Filed:
Jul. 02, 1999
Toshiyuki Anbo, Tokyo, JP;
Fumio Uchikoba, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A process for the production of an inductor device comprising the steps of forming a green sheet to form an insulating layer; forming a plurality of conductive coil pattern units on the surface of the green sheet in order that a plurality of unit sections each including a single coil pattern unit are arranged on the surface of the green sheet and each two coil pattern units adjoining in the substantially perpendicular direction to the longitudinal direction of the unit sections are arranged centro-symmetrically with respect to a center point of a boundary line of adjoining unit sections; stacking a plurality of green sheets formed with the plurality of coil pattern units arranged in centro-symmetry and connecting the upper and lower coil pattern units separated by the green sheets to form a coil shape; and sintering the stacked green sheets. It is possible to obtain an inductor device able to suppress the stack deviation without complicating the production process even if the device is made small in size.