Annaka, Japan

Masayasu Nagaoka

This inventor holds 2 USPTO granted patents. Top assignee: Shin-Etsu Chemical Co., Ltd.. Active years: 2000-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masayasu Nagaoka. Retrieved from https://idiyas.com/inventor/masayasu-nagaoka

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 = 2

Forward Citations = 5(Granted Patents)


Company Filing History:


Years Active: 2000-2003

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2 patents (USPTO):Explore Patents

Title: The Innovations of Masayasu Nagaoka

Introduction

Masayasu Nagaoka is a prominent inventor based in Annaka, Japan. He has made significant contributions to the field of optical fiber technology. With a total of 2 patents to his name, Nagaoka's work has advanced the capabilities of optical fibers in various applications.

Latest Patents

Nagaoka's latest patents include innovations in grating optical fibers and optical fiber base materials suitable for grating. The first patent describes a grating optical fiber that consists of a core, a first clad layer surrounding the core, and a second clad layer around the first clad. In this design, germanium is doped in the core, while both germanium and fluorine are doped in the first clad layer. Gratings are formed on both the core and the first clad layer, enhancing the fiber's performance. The second patent reiterates similar features, emphasizing the importance of the refractive index differences between the layers for optimal functionality.

Career Highlights

Nagaoka is currently employed at Shin-Etsu Chemical Co., Ltd., where he continues to innovate in the field of optical materials. His work has been instrumental in developing advanced optical fibers that are crucial for telecommunications and other technologies.

Collaborations

Throughout his career, Nagaoka has collaborated with notable colleagues such as Jun Abe and Nobuyasu Mantoku. These partnerships have fostered a creative environment that has led to groundbreaking advancements in optical fiber technology.

Conclusion

Masayasu Nagaoka's contributions to optical fiber technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in telecommunications and optical materials.

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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