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:
Jan. 20, 2026
Filed:
Sep. 28, 2022
Komatsu Ltd., Tokyo, JP;
Hayato Matsumoto, Tokyo, JP;
Shunsuke Sugimura, Tokyo, JP;
Takehiro Shibata, Tokyo, JP;
Tomofumi Hokari, Tokyo, JP;
Yuichiro Yasuda, Tokyo, JP;
Kenji Nozaki, Tokyo, JP;
Tomotaka Komatsu, Tokyo, JP;
Yosuke Yamagoe, Tokyo, JP;
Ryohei Kikuzawa, Tokyo, JP;
KOMATSU LTD., Tokyo, JP;
Abstract
A work machine activation system includes a management device and an authentication device. The management device stores authentication information usable to authenticate a plurality of operators who are able to operate a work machine. The authentication device authenticates an operator operating the work machine. The authentication device includes a storage unit that stores the authentication information of an operator authenticated in the past, and an authentication unit that authenticates the operator based on the authentication information stored in the storage unit when the management device has not been activated.