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:
Feb. 10, 2026
Filed:
Nov. 21, 2024
Riverfield Inc., Tokyo, JP;
Kotaro Tadano, Tokyo, JP;
RIVERFIELD INC., Tokyo, JP;
Abstract
An arm structure includes a shoulder joint, an elbow joint, a wrist joint, a first connection structure connecting the shoulder joint with the elbow joint and that relatively moves while maintaining an orientation of the elbow joint relative to the shoulder joint, a second connection structure connecting the elbow joint with the wrist joint and that relatively moves while maintaining an orientation of the wrist joint relative to the elbow joint, a third connection structure connecting the shoulder joint with the second connection structure and that relatively moves while maintaining an orientation of the wrist joint relative to the shoulder joint, a first actuator that rotates a first rotating shaft included in the first connection structure, and a second actuator that rotates a second rotating shaft included in the third connection structure. The first and second rotating shafts are supported by the shoulder joint.