Chitose, Japan

Tomohiro Koyama

This inventor holds 1 USPTO granted patent and 1 EPO patent. Top assignee: Shin-Etsu Chemical Co., Ltd.. Active years: 2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tomohiro Koyama. Retrieved from https://idiyas.com/inventor/tomohiro-koyama-jsehpakx

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

Calculating rank

% Patents Active = 100.0


Average Co-Inventor Count = 6.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 2014

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1 patent (USPTO):Explore Patents

Title: The Innovations of Tomohiro Koyama

Introduction

Tomohiro Koyama is a notable inventor based in Chitose, Japan. He has made significant contributions to the field of optical technology. His work primarily focuses on the development of optical isolators, which are crucial in various applications.

Latest Patents

Koyama holds 1 patent for an innovative optical isolator. This device includes a Faraday rotator that exhibits a high Faraday effect and a high transmission factor at the wavelengths used. The optical isolator comprises a Faraday rotator, a polarizer positioned on the light incidence side, and an analyzer on the light exit side. Notably, the Faraday rotator is made from an oxide containing an ytterbium oxide (YbO) with a mass ratio of 30% or more.

Career Highlights

Koyama is currently employed at Shin-Etsu Chemical Co., Ltd., where he continues to advance his research and development efforts. His work has been instrumental in enhancing the performance of optical devices.

Collaborations

Some of his coworkers include Shinji Makikawa and Toshiaki Watanabe, who contribute to the innovative environment at Shin-Etsu Chemical Co., Ltd.

Conclusion

Tomohiro Koyama's contributions to optical technology, particularly through his patented optical isolator, highlight his role as a significant inventor in the field. His ongoing work at Shin-Etsu Chemical Co., Ltd. continues to push the boundaries of innovation.

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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