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.

Date of Patent:
Feb. 25, 2014

Filed:

Jan. 12, 2010
Applicants:

Takatoshi Itagaki, Tokyo, JP;

Akira Ikeuchi, Tokyo, JP;

Makio Abe, Tokyo, JP;

Inventors:

Takatoshi Itagaki, Tokyo, JP;

Akira Ikeuchi, Tokyo, JP;

Makio Abe, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/48 (2006.01);
U.S. Cl.
CPC ...
Abstract

A fuel gauge circuit detects a residual quantity of a batteryand is disposed on a substratetogether with a protection circuitwhich protects charging/discharging of the battery. The fuel gauge circuit includes a voltage monitor terminal Tdisposed on a side facing a positive power-supply terminalof the substrate and connected to each of the positive power-supply terminaland a voltage sensordisposed in the circuit, a voltage through terminal Tdisposed on a side facing the protection circuit, opposite to the side facing the positive power-supply terminal, and connected to a voltage monitor terminal Tof the protection circuit, and a wiringdisposed within the circuit to connect the voltage monitor terminal Tof the fuel gauge circuit to the voltage through terminal T


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