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:
Feb. 24, 2026
Filed:
Mar. 02, 2023
Daifuku Co., Ltd., Osaka, JP;
Takeshi Hisano, Hinocho, JP;
Akira Murota, Hinocho, JP;
Masaaki Yamamoto, Hinocho, JP;
Hiroshi Kamiyoshi, Hinocho, JP;
Daifuku Co., Ltd., Osaka, JP;
Abstract
A power supply device includes a power supply unit that outputs alternating current, an output unit connectable to a power supply line, and an adjusting unit that adjusts the capacitance of a power supply circuit between the power supply unit and the output unit. The adjusting unit includes a first capacitor, a second capacitor, and a circuit switching mechanism. The circuit switching mechanism can switch between a series connection state in which the first capacitor and the second capacitor are connected in series between the power supply unit and the output unit, and a parallel connection state in which the first capacitor and the second capacitor are connected in parallel between the power supply unit and the output unit.