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. 17, 2024
Filed:
Dec. 18, 2019
Bitkey Inc., Tokyo, JP;
Yuki Ejiri, Tokyo, JP;
Hiroshi Yamamoto, Tokyo, JP;
BITKEY INC., Tokyo, JP;
Abstract
According to the present invention, the convenience of a utilization management technology for a usage target object is enhanced and the security risk is reduced. This utilization control device () is capable of communicating only in a near field communication () and stores a first public key that is paired with a first secret key stored in a management device (). When hole data is received with a first signature from a provider terminal (), the first signature is verified by means of the first key, and when the signature verification is established, the hole data is set to an own device (). The hole data includes a second public key that is paired with a second secret key stored in the management device (). When a utilization permit card is received with a second signature from a user terminal (), the second signature is verified with the second public key, and when the signature verification is validated, transaction information included in the utilization permit card is acquired. In addition, with reference to the acquired transaction information, when a condition specified by the transaction information is satisfied, a utilization limit to the object to be utilized (a house ()) is released.