Nakano, Japan

Kesaji Sato

This inventor holds 1 USPTO granted patent. Top assignees: Iiyama-Cosina Co., Ltd., Minolta Company, Ltd.. Active years: 1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kesaji Sato. Retrieved from https://idiyas.com/inventor/kesaji-sato

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 = 5.0

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 1998

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1 patent (USPTO):Explore Patents

Title: The Innovative Mind of Kesaji Sato

Introduction

Kesaji Sato is a notable inventor based in Nakano, Japan. He is recognized for his innovative contributions to the field of optics, particularly in the design of binoculars. His work has led to the development of a unique patent that enhances the functionality and usability of binoculars.

Latest Patents

Kesaji Sato holds a patent for "Thin adjustable binoculars." This invention features a fixed lens mount and a movable lens mount that can be adjusted to suit the viewer's eyes. The design includes a cover member that conceals the space between the two lens mounts, adapting to the movement of the movable lens mount. Additionally, the binoculars incorporate a focus adjusting system that allows for precise movement of the objective lens along the optical axis. The inclusion of an erect prism unit with roof prisms further enhances the optical performance of the binoculars.

Career Highlights

Throughout his career, Kesaji Sato has worked with prominent companies in the optical industry. He has been associated with Iiyama-Cosina Co., Ltd. and Minolta Company, Ltd. His experience in these organizations has contributed to his expertise in developing innovative optical devices.

Collaborations

Kesaji Sato has collaborated with talented individuals such as Naoki Ishihara and Kaoru Umeda. These partnerships have likely fostered a creative environment that has led to significant advancements in his work.

Conclusion

Kesaji Sato's contributions to the field of optics, particularly through his patent for adjustable binoculars, showcase his innovative spirit and dedication to enhancing user experience. His work continues to influence the design and functionality of optical devices today.

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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