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:
Jun. 12, 2012
Filed:
Feb. 28, 2007
Applicants:
Kousei Yokoyama, Ibaraki, JP;
Kazuhiko Funabashi, Ibaraki, JP;
Katsuhiro Oomori, Ibaraki, JP;
Inventors:
Assignee:
Hitachi Koki Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A power tool, having attached thereto a battery device including one or a plurality of cell assemblies, includes a motor which is supplied with a DC current from the battery device, a switching element which controls a drive and a stop of the motor, means which detects a number of cell assemblies, and control means which controls the switching element in such a way as to stop the drive of the motor when the number of cell assemblies is smaller than a prescribed value.
Yokoyama, Kousei. (2012). Cordless power tool and battery device used for same (U.S. Patent No. 8198835). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8198835
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile