Chiba, Japan

Kazumasa Osoniwa

This inventor holds 4 USPTO granted patents and 2 published patent applications. Top assignee: Sony Corporation. Active years: 2007-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazumasa Osoniwa. Retrieved from https://idiyas.com/inventor/kazumasa-osoniwa

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

USPTO Granted Patents = 4 

Average Co-Inventor Count = 3.7

ph-index = 3

Forward Citations = 21(Granted Patents)


Company Filing History:


Years Active: 2007-2012

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4 patents (USPTO):Explore Patents

Title: Kazumasa Osoniwa: Innovator in Light Adjustment Technology

Introduction

Kazumasa Osoniwa is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of optical technology, particularly in light adjustment devices. With a total of 4 patents to his name, Osoniwa continues to push the boundaries of innovation.

Latest Patents

One of his latest inventions is a light amount adjusting device and image capture apparatus. This device includes a cover plate with a light-passing hole, a first separator that is sheet-shaped and has a hole, and a second separator that is elastically deformable and sheet-shaped. The second separator is positioned on the opposite side of the cover plate, with the first separator in between. The device also features a first light amount adjusting blade that is movable between the cover plate and the first separator, as well as a second light amount adjusting blade that moves between the first and second separators. The base body of the device mounts the cover plate, first separator, and second separator, featuring a throughhole and mounting grooves that allow for the second separator's installation.

Career Highlights

Kazumasa Osoniwa is currently employed at Sony Corporation, where he applies his expertise in developing innovative optical technologies. His work has been instrumental in enhancing the functionality and efficiency of imaging devices.

Collaborations

Osoniwa has collaborated with notable colleagues, including Atsushi Nakamura and Norio Kawatani. Their combined efforts have contributed to the advancement of technology in their field.

Conclusion

Kazumasa Osoniwa is a distinguished inventor whose work in light adjustment technology has made a significant impact. His innovative spirit and dedication to advancing optical technology continue to inspire future developments in the industry.

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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