Yokohama, Japan

Satoru Nakazawa

This inventor holds 1 USPTO granted patent. Top assignee: Sumitomo Electric Industries, Limited. Active years: 2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Satoru Nakazawa. Retrieved from https://idiyas.com/inventor/satoru-nakazawa-6ryxvm38

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

Average Co-Inventor Count = 2.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 2005

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1 patent (USPTO):Explore Patents

Title: Satoru Nakazawa: Innovator in Optical Amplification

Introduction

Satoru Nakazawa is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of optical technology, particularly in the development of optical amplifiers. His innovative work has led to the creation of a patented technology that enhances the performance of optical systems.

Latest Patents

Satoru Nakazawa holds a patent for an optical amplifier. The invention features an Erbium-Doped Fiber (EDF) and a light source device equipped with a semiconductor laser element that generates an excitation beam. The design includes a housing that accommodates these components, along with an optical multiplexer that is optically coupled with the light source device. This multiplexer has an input for receiving the signal beam and an output that provides both the excitation beam and the signal beam to the EDF. The semiconductor laser element is constructed with an active layer situated between cladding layers, utilizing compound semiconductors of different conductivity types. The oscillation wavelength of this semiconductor laser element is designed to be less than 1470 nm but not less than 1440 nm at 20°C. This configuration effectively minimizes the gain change in the EDF concerning the oscillation wavelength, resulting in a satisfactorily small noise figure (NF).

Career Highlights

Satoru Nakazawa is associated with Sumitomo Electric Industries, Limited, a leading company in the field of electrical and electronic components. His work at this esteemed organization has allowed him to focus on advancing optical technologies and contributing to the company's innovative projects.

Collaborations

Satoru Nakazawa has collaborated with Yasunori Murakami, a fellow innovator in the field. Their partnership has fostered advancements in optical technology and has contributed to the success of their projects.

Conclusion

Satoru Nakazawa's contributions to optical amplification technology exemplify his innovative spirit and dedication to advancing the field. His patented optical amplifier represents a significant step forward in enhancing optical system performance.

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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