Tokyo, Japan

Byong-Jin Ma

This inventor holds 2 USPTO granted patents. Top assignee: The University of Tokyo. Active years: 2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Byong-Jin Ma. Retrieved from https://idiyas.com/inventor/byong-jin-ma

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 = 2.0

ph-index = 2

Forward Citations = 5(Granted Patents)


Company Filing History:


Years Active: 2002

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2 patents (USPTO):Explore Patents

Title: Byong-Jin Ma: Innovator in Optical Devices

Introduction

Byong-Jin Ma is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of optical devices, holding a total of 2 patents. His work focuses on advancing technology that enhances optical performance and efficiency.

Latest Patents

Ma's latest patents include an innovative optical device designed to achieve a large extinction ratio suitable for digital operations. This device features first and second electrodes formed on both sides of a waveguide structure, creating adjacent carrier-injection and non-carrier injection regions. The unique design allows for the manipulation of light waves based on the power levels, optimizing the refractive index for improved performance. Another notable patent is an optical wavelength converter that utilizes semiconductor optical amplifiers. This converter effectively manages input optical pulse signals of varying wavelengths, ensuring efficient signal amplification and transmission.

Career Highlights

Byong-Jin Ma is affiliated with The University of Tokyo, where he continues to push the boundaries of optical technology. His research and inventions have garnered attention in the academic and industrial sectors, contributing to advancements in optical communications and devices.

Collaborations

Ma collaborates with fellow researcher Yoshiaki Nakano, enhancing the scope and impact of their work in the field of optical innovations.

Conclusion

Byong-Jin Ma's contributions to optical devices exemplify the innovative spirit of modern technology. His patents reflect a deep understanding of optical principles and a commitment to advancing the field.

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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