Tsukuba, Japan

Shigeru Kokaji

This inventor holds 2 USPTO granted patents. Top assignees: Agency of Industrial Science and Technology, Ministry of International Trade & Industry. Active years: 1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeru Kokaji. Retrieved from https://idiyas.com/inventor/shigeru-kokaji

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 = 4.0

ph-index = 1

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 1994

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2 patents (USPTO):Explore Patents

Title: Shigeru Kokaji: Innovator in Optical Measurement and Signal Analysis

Introduction

Shigeru Kokaji is a notable inventor based in Tsukuba, Japan. He has made significant contributions to the fields of optical measurement and signal analysis, holding a total of 2 patents. His innovative work has advanced the understanding and application of optical technologies.

Latest Patents

One of Kokaji's latest patents is the "Shearing interferometer for measuring lens lateral aberration." This device measures the aberration of a lens by passing a beam through it, splitting the beam into multiple beams using a slightly wedged plate, and causing interference between the wavefronts of the beams. The front and rear optical surfaces of the wedged plate are coated with reflective thin films, each having specific reflectance and transmittance properties. Another significant patent is the "Time series signal multichannel frequency analyzer using liquid crystal." This analyzer comprises a Fourier transform lens and a liquid crystal panel positioned at the front focal plane of the lens. It allows for the input of time signals from different sources to each scanning line of the liquid crystal panel, enhancing the analysis of time series signals.

Career Highlights

Kokaji has worked with prominent organizations, including the Agency of Industrial Science and Technology and the Ministry of International Trade and Industry. His experience in these institutions has contributed to his expertise in optical technologies and signal processing.

Collaborations

Throughout his career, Kokaji has collaborated with notable individuals such as Kiyofumi Matsuda and Thomas H. Barnes. These collaborations have further enriched his work and expanded the impact of his inventions.

Conclusion

Shigeru Kokaji's contributions to optical measurement and signal analysis demonstrate his innovative spirit and dedication to advancing technology. His patents reflect a deep understanding of complex systems and a commitment to improving measurement techniques.

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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