Tokyo, Japan

Kiyohisa Hiramoto

This inventor holds 1 USPTO granted patent. Top assignee: Hitachi, Ltd.. Active years: 1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kiyohisa Hiramoto. Retrieved from https://idiyas.com/inventor/kiyohisa-hiramoto

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 = 13(Granted Patents)


Company Filing History:


Years Active: 1998

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1 patent (USPTO):Explore Patents

Title: Kiyohisa Hiramoto: Innovator in Semiconductor Laser Technology

Introduction

Kiyohisa Hiramoto is a prominent inventor based in Tokyo, Japan. He is known for his significant contributions to the field of semiconductor laser devices. His innovative work has led to advancements that enhance the reliability and performance of these devices.

Latest Patents

Hiramoto holds a patent for a semiconductor laser that is designed to prevent sudden failures caused by electric surges. This invention features a complex structure that includes a ridge formed by a GaAs buffer layer, an n-InGaP cladding layer lattice-matched to a GaAs substrate, a strained-quantum well active layer, and several other layers that work together to improve the device's functionality. His patent is a testament to his expertise and dedication to advancing semiconductor technology.

Career Highlights

Hiramoto is associated with Hitachi, Ltd., where he has made significant contributions to research and development in semiconductor technology. His work has not only advanced the field but has also positioned Hitachi as a leader in innovative technology solutions.

Collaborations

Throughout his career, Hiramoto has collaborated with notable colleagues, including Misuzu Sagawa and Tomonobu Tsuchiya. These collaborations have fostered an environment of innovation and have led to the development of cutting-edge technologies in the semiconductor industry.

Conclusion

Kiyohisa Hiramoto's contributions to semiconductor laser technology exemplify his commitment to innovation and excellence. His patent for a reliable semiconductor laser device showcases his ability to address critical challenges in the field. Hiramoto's work continues to influence the future of semiconductor technology.

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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