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:
Jan. 23, 2007
Filed:
Mar. 15, 2004
Minoru Takaya, Tokyo, JP;
Takashi Kajino, Tokyo, JP;
Hisashi Kobuke, Tokyo, JP;
Masami Sasaki, Tokyo, JP;
Kazuhiko Itoh, Tokyo, JP;
Toshikazu Endo, Tokyo, JP;
Minoru Takaya, Tokyo, JP;
Takashi Kajino, Tokyo, JP;
Hisashi Kobuke, Tokyo, JP;
Masami Sasaki, Tokyo, JP;
Kazuhiko Itoh, Tokyo, JP;
Toshikazu Endo, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A core material-including organic core board or inorganic sintered boardhaving a plurality of band-shaped conductor patternsformed on its front and rear surfaces is sliced in a direction crossing the band-shaped conductor patterns. End portions of the band-shaped conductor patternsexposed on each of cut surfaces of the core boardare connected to one another by bridging conductor patterns formed on the cut surfaces. In this manner, at least one helical coil is provided. The inner diameter of the helical coil can be kept constant while coil pitch accuracy can be kept good.