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:
Mar. 26, 2013
Filed:
Nov. 10, 2009
Takashi Mochida, Chiba, JP;
Takeshi Ozawa, Chiba, JP;
Sachiko Kaneko, Chiba, JP;
Sony Corporation, Tokyo, JP;
Abstract
Disclosed is an electric power generating apparatus. The electric power generating apparatus includes a casing that is made of a nonmagnetic material and has an outer surface and an interior space, a guide shaft that is made of a nonmagnetic material and provided in the interior space while being supported by the casing, a permanent magnet provided to the guide shaft so that the permanent magnet is capable of being reciprocated, a coil provided on an outer circumference of the interior space, a shield case to cover the outer surface of the casing, the shield case being made of a magnetic material, and an electric circuit unit to output an electric energy generated in the coil by reciprocating the permanent magnet.