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:
Apr. 18, 2006
Filed:
Sep. 01, 2004
Takahiro Kokubu, Aichi-ken, JP;
Shunpei Sasago, Aichi-ken, JP;
Takahiro Kokubu, Aichi-ken, JP;
Shunpei Sasago, Aichi-ken, JP;
Aisin Aw Co., Ltd., Aichi, JP;
Abstract
A solenoid driving device includes a coil formed by winding a coil wire on a bobbin formed of a non-magnetic material, end portions formed of a magnetic material which are disposed adjacent to both ends of the coil, a yoke formed of a magnetic material which is disposed encompassing the coil and the end portions, and a plunger disposed slidably in a hollow portion formed within the bobbin and end portions. The plunger includes a base formed of a magnetic material, a first layer formed of a non-magnetic material, and a second layer formed of a non-magnetic material having a friction coefficient smaller than that of the first layer. This allows magnetism to be severed between the plunger and end portions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile