Yokohama, Japan

Kazuharu Chiba

This inventor holds 2 USPTO granted patents. Top assignee: Fujitsu Corporation. Active years: 1990-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuharu Chiba. Retrieved from https://idiyas.com/inventor/kazuharu-chiba

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 = 3.0

ph-index = 1

Forward Citations = 12(Granted Patents)


Company Filing History:


Years Active: 1990-1991

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2 patents (USPTO):Explore Patents

Title: Kazuharu Chiba: Innovator in Wavelength Stabilized Light Sources

Introduction

Kazuharu Chiba is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of optical technology, particularly in the development of wavelength stabilized light sources. With a total of 2 patents to his name, Chiba continues to push the boundaries of innovation in his field.

Latest Patents

One of Chiba's latest patents is a wavelength stabilized light source that incorporates a cesium oscillator. This cesium oscillator consists of a cesium beam tube and an oscillator circuit that generates an oscillation signal of a frequency supplied to the cesium beam tube. The invention features a frequency control circuit that includes a sweep circuit and a feedback loop circuit, which continuously varies the frequency of the oscillation signal. The frequency is adjusted by varying the oscillation signal two times, ensuring precision in the output. A hold circuit captures the highest signal level of the resonance signal from the cesium beam tube, while a control circuit manages the frequency control circuit to halt the frequency variation when the resonance signal reaches the highest level.

Career Highlights

Kazuharu Chiba is currently employed at Fujitsu Corporation, where he applies his expertise in optical technologies. His work at Fujitsu has allowed him to collaborate with other talented professionals in the field, contributing to advancements in technology.

Collaborations

Chiba has worked alongside notable colleagues such as Yoshifumi Nakajima and Hideo Sumiyoshi. Their combined efforts have fostered a collaborative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Kazuharu Chiba is a distinguished inventor whose work in wavelength stabilized light sources has made a significant impact in the field of optical technology. His contributions, along with his collaborations at Fujitsu Corporation, continue to inspire advancements in 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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