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:
Oct. 06, 2026
Filed:
Nov. 14, 2022
Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, JP;
Nobuyuki Narisawa, Tokyo, JP;
Ken Umeda, Tokyo, JP;
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD., Tokyo, JP;
Abstract
A compressor includes a compressor body, a motor, a current sensor that detects a current value of the motor, and a control device that controls the drive of the motor. The control device determines, through the current sensor, a current value of the motor at a point in time when a first time has elapsed from the start of the motor. The control device further determines a current value of the motor at a point in time when a second time, longer than the first time, has elapsed from the start of the motor. The control device makes a first notification corresponding to a first mode in a case where a first equation is met, and makes a second notification corresponding to a second mode in a case where a second equation is met.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile