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. 09, 2010
Filed:
Nov. 27, 2006
Applicants:
Tamiji Nagai, Atsugi, JP;
Toshio Nagai, Legal Representative, Tokyo, JP;
Kazuo Yamazaki, Atsugi, JP;
Inventors:
Tamiji Nagai, Atsugi, JP;
Toshio Nagai, legal representative, Tokyo, JP;
Kazuo Yamazaki, Atsugi, JP;
Assignee:
Mitsumi Electric Co., Ltd., Tama-Shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01);
U.S. Cl.
CPC ...
Abstract
To reduce power loss during standby. In a switching power supply device using a first power supply circuit () having a small output and a second power supply circuit () having a large output, the first power supply circuit () is continuously kept in an operating state and the second power supply circuit () is started by using an electric power generated in the first power supply circuit ().