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:
Dec. 10, 2024
Filed:
Mar. 31, 2021
Koki Holdings Co., Ltd., Tokyo, JP;
Kenichi Hoshino, Ibaraki, JP;
Yasushi Nakano, Ibaraki, JP;
Tomoaki Sudo, Ibaraki, JP;
Eiji Nakayama, Ibaraki, JP;
Koki Holdings Co., Ltd., Tokyo, JP;
Abstract
Provided is a work machine capable of improving workability. The work machine is provided with: a motor; a first power supply unitconnected to a battery packand supplying a boosted power to the motor; and a second power supply unitconnected to an external AC power supply and supplying a boosted power to the motor. The voltage and current of the first power supply unitand the voltage and current of the second power supply unitcan be variably controlled by a control circuitand a control circuit, respectively. The control circuitsperform control so that the power output from the respective first power supply unitand the second power supply unitis combined and supplied to the motor