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:
Aug. 15, 2006

Filed:

Apr. 01, 2004
Applicants:

Tatsuki Mori, Anjo, JP;

Kazuyuki Sakakibara, Anjo, JP;

Masaaki Fukumoto, Anjo, JP;

Inventors:

Tatsuki Mori, Anjo, JP;

Kazuyuki Sakakibara, Anjo, JP;

Masaaki Fukumoto, Anjo, JP;

Assignee:

Makita Corporation, Anio, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Battery packmay include rechargeable batteryand remaining capacity indicating circuitfor indicating the remaining capacity of the battery. Remaining capacity indicating circuitmay be coupled to the batteryvia first switch SW. When first switch SWis turned ON, a current flows from batteryto remaining capacity indicating circuit. When the first switch SWis turned OFF, the current flowing from batteryto remaining capacity indicating circuitis turned OFF. The first switch SWmay be coupled to first voltage detecting circuit (R, R) for detecting the voltage of battery. When the voltage that is being detected of batteryfalls below a first predetermined value, first switch SWis turned off. Battery packmay further include cut-off circuit (SW, R, R) that cuts off the flow of current from batteryto first voltage detecting circuit (R, R) when first switch SWhas been turned OFF.


Find Patent Forward Citations

Loading…