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:
Sep. 02, 2003
Filed:
Mar. 06, 2001
Fumito Uemura, Tokyo, JP;
Shinji Baba, Tokyo, JP;
Yoshihide Masumoto, Tokyo, JP;
Tomokazu Umezaki, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
Power generation efficiency of a magneto generator is improved. A guard ring made of a material of high magnetic permeability such as carbon steel plate is arranged inside a flywheel for the purpose of holding and guarding magnets . the guard ring is provided with opening portions at positions where the guard ring coincides with adjacent two end portions of the neighboring magnets . Magnetic flux is prevented from flowing into the neighboring magnets 12 through the guard ring at the time of power generation. The magnetic flux flows into an iron core of a magneto coil , and generation efficiency is effectively improved.