Saka, Japan

Masakazu Doi

This inventor holds 1 USPTO granted patent. Top assignee: Niitech Co., Ltd.. Active years: 2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masakazu Doi. Retrieved from https://idiyas.com/inventor/masakazu-doi-c9hqtpof

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 1


Company Filing History:


Years Active: 2022

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1 patent (USPTO):Explore Patents

Title: Innovations by Masakazu Doi

Introduction

Masakazu Doi is a notable inventor based in Saka-cho, Japan. He has made significant contributions to the field of mechanical engineering, particularly in the design of trunk lid mechanisms for vehicles. His innovative approach has led to the development of a unique stopper mechanism that enhances the functionality and safety of trunk lids.

Latest Patents

Masakazu Doi holds a patent for a "Stopper mechanism for trunk lid and a method for controlling rotational movement of trunk lid." This invention focuses on a trunk lid stopper mechanism that allows for controlled rotational movement, enabling the trunk lid to slow down and halt effectively. The mechanism includes hinge arms that support the lid, torsion bars that apply a biasing force, and link arms that transmit this force. The design incorporates a stopper member with tapered surfaces that reduce the relative rotational speed, ensuring a smooth and safe operation of the trunk lid.

Career Highlights

Doi is currently associated with Niitech Co., Ltd., where he continues to innovate and develop new technologies. His work has been instrumental in improving vehicle safety and user experience through practical engineering solutions.

Collaborations

Masakazu Doi collaborates with Mitsuhiro Kataoka, contributing to the advancement of their projects and sharing expertise in mechanical design and engineering.

Conclusion

Masakazu Doi's contributions to trunk lid mechanisms exemplify the importance of innovation in automotive engineering. His patented designs not only enhance functionality but also prioritize user safety, marking him as a significant figure in his field.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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