This inventor holds 1 USPTO granted patent. Top assignee: Frontact Co., Ltd.. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Kazunari Hatazaki and Motion-Assistance Technology.
Introduction
Kazunari Hatazaki is an inventor based in Tokyo, Japan, associated with Frontact Co., Ltd. His patent work includes a device designed to assist users with flexing and extending their fingers.
Latest Patents
Hatazaki is credited with 1 patent, titled “Motion Assist Device.” The invention uses one or more arms connected to a user’s fingers. An arm support mechanism, mountable on the back of the hand, supports the arms as they turn, while a drive mechanism powers their movement. The device maintains a fixed distance between the finger connection member and the arm’s turning center. A stopper contacts the fingers’ proximal phalanges to restrict their movement during operation.
Career Highlights
Hatazaki’s listed invention focuses on mechanical assistance for finger movement. Its design combines driven arms, finger connections, and a hand-mounted support mechanism.
Collaborations
Hatazaki’s listed coworkers include Masahiro Kasuya and Tatsuya Seki. The patent information provided does not specify their individual contributions.
Conclusion
Kazunari Hatazaki’s patent describes a hand-mounted motion-assistance device intended to support finger flexion and extension through a driven arm mechanism.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile