This inventor holds 1 USPTO granted patent. Top assignee: Kubota Corporation. Active years: 1985.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1985
Title: Yoshibumi Nagamine and Reversible Cultivating-Tine Attachment
Introduction
Yoshibumi Nagamine is an inventor associated with Habikino, Japan, and Kubota Corporation. His recorded patent focuses on a reversible tine attachment for cultivation equipment.
Latest Patents
Nagamine’s listed patent, “Structure for Attaching Tines for Cultivation by Reversible Rotation,” describes cultivating tines with opposite cutting edges that pivot on mount members attached to a tine shaft. The shaft can rotate in either direction about a horizontal lateral axis, allowing one cutting edge to work when the shaft rotates forward and the other when it rotates in reverse.
A resistant-force mechanism helps keep each tine in its selected position against centrifugal force. The resistance is designed to be lower than the reaction force produced when the tine enters the soil, allowing the tine to respond during cultivation. Nagamine is credited with 1 patent.
Career Highlights
Nagamine’s documented invention addresses the practical design of reversible cultivation equipment. The patent’s mechanism supports operation in both rotation directions while helping control tine movement.
Collaborations
Nagamine is associated with Kubota Corporation. Taro Saito and Kazumi Umeki are identified as his coworkers; the available information does not specify their roles in the patent.
Conclusion
Yoshibumi Nagamine’s recorded patent presents a reversible tine-attachment design intended to support controlled, bidirectional cultivation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile