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:
May. 26, 2026
Filed:
Aug. 10, 2022
Hitachi Astemo, Ltd., Hitachinaka, JP;
Nobuyoshi Morita, Tokyo, JP;
Mikio Kataoka, Tokyo, JP;
Yasuhiro Fujii, Tokyo, JP;
Masashi Yano, Tokyo, JP;
Hitachi Astemo, Ltd., Hitachinaka, JP;
Abstract
The present disclosure provides an information processing device and a key management device capable of safely writing key information even in a manufacturing environment other than a manufacturing environment of its own company. An information processing devicethat generates and manages a key includes a storage unitthat stores a public key received from a key management device, a key generation unitthat generates a use key, and a communication unitcapable of communicating with the outside. The key generation unitgenerates a use key in an invalid state in which the communication unitblocks signal input from the outside. The communication unittransmits the use key encrypted with the public key to the key management device