Gunma, Japan

Ryuichi Nakajima

This inventor holds 2 USPTO granted patents. Top assignee: Mitsuba Corporation. Active years: 2014-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ryuichi Nakajima. Retrieved from https://idiyas.com/inventor/ryuichi-nakajima

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


% Patents Active = 50.0

Average Co-Inventor Count = 2.7

ph-index = 1

Forward Citations = 5(Granted Patents)


Location History:

  • Kiryu, JP (2014)
  • Gunma, JP (2022)

Company Filing History:


Years Active: 2014-2022

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2 patents (USPTO):Explore Patents

Title: Ryuichi Nakajima: Innovator in Vehicle Technology

Introduction

Ryuichi Nakajima is a prominent inventor based in Gunma, Japan. He has made significant contributions to the field of vehicle technology, particularly in the development of innovative door opening and closing mechanisms. With a total of 2 patents, Nakajima's work has garnered attention for its practicality and efficiency.

Latest Patents

One of Nakajima's latest patents is a vehicle door opening/closing device. This device features a storage unit that holds a target speed map, defining the relationship between the door position and the motor's target speed. It also includes a user-defined arbitrary fully open position. The map speed computation unit calculates the map speed, while a gradually decreasing speed calculation unit determines a target speed that decreases at a prescribed rate as the door approaches the fully open position. This innovative design ensures a smooth transition to a terminal speed at the desired position.

Another notable patent is for a driving apparatus designed for opening and closing vehicle bodies. This invention utilizes a hypocycloid reducer to reduce the rotation of a flat motor, outputting the speed-reduced rotation to a drum. The design allows for bi-directional transmission of turning force, eliminating the need for an electromagnetic clutch. This results in a more compact and lightweight driving apparatus, reducing production costs by simplifying the necessary wiring and control logic.

Career Highlights

Ryuichi Nakajima is currently employed at Mitsuba Corporation, where he continues to innovate in the automotive sector. His work has not only advanced vehicle technology but has also contributed to the efficiency and cost-effectiveness of automotive components.

Collaborations

Throughout his career, Nakajima has collaborated with notable colleagues, including Mitsuhiro Okada and Zentaro Yamaguchi. These partnerships have fostered a creative environment that encourages the development of cutting-edge technologies.

Conclusion

Ryuichi Nakajima's contributions to vehicle technology through his innovative patents demonstrate his commitment to enhancing automotive functionality and efficiency. His work at Mitsuba Corporation and collaborations with fellow inventors highlight the importance of teamwork in driving technological advancements.

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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