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:
Mar. 05, 2019

Filed:

Sep. 12, 2017
Applicant:

Makita Corporation, Anjo-shi, Aichi, JP;

Inventors:

Takuya Umemura, Anjo, JP;

Tadahiko Kobayakawa, Anjo, JP;

Hitoshi Suzuki, Anjo, JP;

Assignee:

MAKITA CORPORATION, Anjo-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/46 (2006.01); G01R 31/36 (2019.01); H02J 7/00 (2006.01); G01K 13/00 (2006.01); H02J 7/04 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3606 (2013.01); G01K 13/00 (2013.01); H02J 7/0004 (2013.01); H02J 7/0008 (2013.01); H02J 7/0011 (2013.01); H02J 7/0021 (2013.01); H02J 7/0044 (2013.01); H02J 7/0073 (2013.01); H02J 7/0075 (2013.01); H02J 7/041 (2013.01); H02J 7/047 (2013.01); H02J 2007/0067 (2013.01);
Abstract

A charge control device of one example of the present invention comprises a temperature detection unit, a storage unit, and an upper limit setting unit. The storage unit stores a reference current characteristic and at least one of a first current characteristic and a second current characteristic as a charging current characteristic, and stores a reference voltage characteristic and at least one of a first voltage characteristic and a second voltage characteristic as a charging voltage characteristic. The upper limit setting unit selects a characteristic used to set upper limits of a charging current and a charging voltage to the battery from among a plurality of the charging current characteristics and a plurality of the charging voltage characteristics stored in the storage unit.


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