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. 10, 2009
Filed:
Dec. 27, 2005
Applicants:
Akira Ikeuchi, Atsugi, JP;
Kazuhiro Ooshita, Atsugi, JP;
Inventors:
Akira Ikeuchi, Atsugi, JP;
Kazuhiro Ooshita, Atsugi, JP;
Assignee:
Mitsumi Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/46 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor device having a positive side of a power supply voltage set as a common potential is disclosed. The semiconductor device includes a power supply circuit that generates a power supply having a negative potential side set to a predetermined voltage based on the common potential. In the semiconductor device, a constant voltage is generated between the common potential and an output voltage of the power supply circuit.