Tokyo, Japan

Keishi Iwana

This inventor holds 2 USPTO granted patents. Top assignee: Sony Corporation. Active years: 2009-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keishi Iwana. Retrieved from https://idiyas.com/inventor/keishi-iwana

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 = 5.3

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 2009-2023

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2 patents (USPTO):Explore Patents

Title: Keishi Iwana: Innovator in Imaging Technology

Introduction

Keishi Iwana is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of imaging technology, particularly through his innovative designs and patents. With a total of 2 patents, Iwana continues to push the boundaries of what is possible in lens and imaging apparatus design.

Latest Patents

Iwana's latest patents include advancements in lens barrels and imaging apparatuses. One notable patent focuses on enhancing the functionality of image stabilization while ensuring smooth operation of a movable body. This lens barrel design incorporates a lens unit with at least one lens, a first magnet for image stabilization in specific directions, and a second magnet for stabilization in a rolling direction. The design also features coils that form magnetic circuits to facilitate movement and rotation of the lens unit.

Another patent details a lens unit that includes a movable section with a movable lens, a linear actuator, and biasing blade springs. This innovative design allows for precise movement in the optical axis direction, enhancing the overall performance of imaging devices.

Career Highlights

Keishi Iwana is currently employed at Sony Corporation, where he applies his expertise in imaging technology. His work has been instrumental in developing cutting-edge products that meet the demands of modern photography and videography.

Collaborations

Iwana has collaborated with notable colleagues, including Tatsuo Makii and Motoshige Ito. Their combined efforts have contributed to the success of various projects within the company.

Conclusion

Keishi Iwana's contributions to imaging technology through his patents and work at Sony Corporation highlight his role as an influential inventor in the field. His innovative designs continue to shape the future of imaging devices, ensuring enhanced functionality and performance.

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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