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:
Jul. 20, 2010
Filed:
Sep. 06, 2007
Hiroyuki Hanawa, Hitachinaka, JP;
Atsushi Nakagawa, Hitachinaka, JP;
Keita Saito, Hitachinaka, JP;
Hitachi Koki Co., Ltd., Tokyo, JP;
Abstract
A battery pack has a housing, a battery cell containing part which is provided in the housing and contains battery cells, a plurality of first terminals which are electrically connected to the battery cell containing part, a plurality of second terminals through which control signals for controlling at least one of charge and discharge of the battery cells contained in the battery cell containing part are transmitted. The first and second terminals can be pressure fitted to corresponding terminals of the body of the apparatus. The first and second terminals are so constructed that when the housing has been attached to the body of the apparatus, fitting pressure exerted on the first terminals is higher than fitting pressure exerted on the second terminals.