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:
Nov. 03, 1998
Filed:
Sep. 02, 1997
Koichi Yamaguchi, Fukui-ken, JP;
Toshi Numata, Omihachiman, JP;
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Abstract
A choke coil equipped with a bobbin which is easy to form, which is resistant to mechanical impacts and which is light in weight and inexpensive. A bobbin 2 is formed, for example, by fitting or gluing together a bobbin member 21 formed of a magnetic substance and a bobbin member 22 formed of a non-magnetic substance. The magnetic substance bobbin member 21 is equipped with a core portion 23a with flange members 24a and 25a at the ends thereof and a flange member 26a provided in the central section thereof. The non-magnetic substance bobbin member 22 is equipped with a tubular portion 23b with flange members 24b and 25b provided at the ends thereof and a flange member 26b provided in the central section thereof. A tubular body portion 23 of the bobbin 2 is formed by the core portion 23a and the tubular portion 23b, and flange portions 24, 25 and 26 of the bobbin 2 are respectively formed by flange members 24a/24b, 25a/25b and 26a/26b.