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:
Sep. 30, 2025
Filed:
Aug. 03, 2021
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Shinichi Horii, Shiga, JP;
Kenichi Kakita, Shiga, JP;
Abstract
A door open/closed recognition device is configured to be attached to a top surface of an exterior of a refrigerator to be used. The door open/closed recognition device includes an attachment portion that is provided on a bottom surface of the door open/closed recognition device and configured to fix the door open/closed recognition device on the top surface; a wireless communication unit that performs a wireless communication with a communication terminal; and a door open/closed recognition unit. The door open/closed recognition unit includes a sensor configured to detect an object which exists within a detection area at a front surface of the refrigerator in a state where the door open/closed recognition device is attached on the top surface; and a processor configured to recognize an open or closed state of a door of the refrigerator based on a detection result of the sensor.