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. 09, 2025
Filed:
May. 05, 2023
Konica Minolta, Inc., Tokyo, JP;
Katsuhiko Akita, Amagasaki, JP;
Konica Minolta, Inc., Tokyo, JP;
Abstract
An authentication system includes: an information processing apparatus; a hardware processor that is connected to the apparatus via a first network and determines propriety of connection to a second network; and a certificate issuing server that is connected to the hardware processor via the second network and issues a certificate including a valid period and permitting the apparatus to connect to the second network, wherein the hardware processor includes a certificate holding part that holds a certificate with which connection has been permitted in a past, verifies a certificate transmitted from the apparatus and determines propriety of connection to the second network, verifies a valid period of a certificate transmitted from the apparatus, permits connection to the second network when the certificate is valid, determines, when the certificate is invalid, whether an identical certificate is held, and permits connection to the second network based on a determination result.