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:
Aug. 27, 2024
Filed:
May. 02, 2023
Koki Holdings Co., Ltd., Tokyo, JP;
Yasushi Nakano, Ibaraki, JP;
Satoshi Yamaguchi, Ibaraki, JP;
Hiroyuki Hanawa, Ibaraki, JP;
Kazuhiko Funabashi, Ibaraki, JP;
Tomomasa Nishikawa, Ibaraki, JP;
Shota Kanno, Ibaraki, JP;
Toshio Mizoguchi, Ibaraki, JP;
Takuya Teranishi, Ibaraki, JP;
Koki Holdings Co., Ltd., Tokyo, JP;
Abstract
A battery pack having a first cell unit and a second cell unit in which multiple battery cells are connected in series is provided. When the battery pack is not connected to an electric apparatus main body, the first cell unit and the second cell unit are in a non-connection state in which the first cell unit and the second cell unit are not electrically connected to each other. The battery pack includes: a microcomputer, connected to one of the first cell unit and the second cell unit; a residual quantity display portion, connected to the microcomputer and displaying a battery residual quantity of the battery pack; and a switch, being operated by a worker. When the switch is operated while in the non-connection state, the microcomputer is configured to perform a light-on control to display the battery residual quantity by the residual quantity display portion.