Ebina, Japan

Katsuhiko Kurumada

This inventor holds 1 USPTO granted patent. Top assignee: Nippon Telegraph and Telephone Corporation. Active years: 1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsuhiko Kurumada. Retrieved from https://idiyas.com/inventor/katsuhiko-kurumada-kmspac0a

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 = 14(Granted Patents)


Company Filing History:


Years Active: 1992

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1 patent (USPTO):Explore Patents

Title: Katsuhiko Kurumada: Pioneering Semiconductor Innovations

Introduction

Katsuhiko Kurumada, an accomplished inventor based in Ebina, Japan, has made significant strides in the field of semiconductor technology. With one patent to his name, Kurumada's contributions reflect his innovative spirit and technical expertise, particularly in wavelength conversion devices.

Latest Patents

Katsuhiko Kurumada holds a patent for a semiconductor wavelength conversion device. This device incorporates a wide band distributed Bragg reflector that boasts a reflectivity far superior to that of a narrow band distributed Bragg reflector mirror on the output side of a bistable wavelength conversion device. The design utilizes input light in TM polarization mode, facilitating wavelength conversion via the tuning of the narrow band distributed Bragg reflection mirror. The output light exits in TE polarization mode, perpendicular to the input light. Notably, this ingenious configuration enables the device to function unidirectionally without requiring an isolator.

Career Highlights

Katsuhiko Kurumada is affiliated with Nippon Telegraph and Telephone Corporation, a leading entity in telecommunications and technology innovation. His career at this esteemed organization has allowed him to be at the forefront of semiconductor research and development.

Collaborations

Throughout his career, Katsuhiko has collaborated with fellow innovators Masahiro Ikeda and Osamu Mikami. Their combined expertise has significantly contributed to advancements in their respective fields and to the development of cutting-edge technologies.

Conclusion

Katsuhiko Kurumada exemplifies the spirit of innovation within the semiconductor industry. His pioneering work on wavelength conversion devices showcases the importance of collaboration and creativity in advancing technology. As he continues to push the boundaries of invention at Nippon Telegraph and Telephone Corporation, Kurumada stands as a testament to the impact that one determined inventor can have on the world.

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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