Hitachi, Japan

Yuuetsu Takuma

This inventor holds 4 USPTO granted patents. Top assignees: Hitachi Cable, Inc., Hitachi, Ltd.. Active years: 1989-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yuuetsu Takuma. Retrieved from https://idiyas.com/inventor/yuuetsu-takuma

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 = 5.2

ph-index = 4

Forward Citations = 280(Granted Patents)


Company Filing History:


Years Active: 1989-1996

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4 patents (USPTO):Explore Patents

Title: Yuuetsu Takuma: Innovator in Optical Fiber Technology

Introduction

Yuuetsu Takuma is a notable inventor based in Hitachi, Japan, recognized for his contributions to optical fiber technology. With a total of four patents to his name, Takuma has made significant advancements in the field, particularly in the production and application of optical fibers.

Latest Patents

One of Takuma's latest patents is a method of producing an elliptic core type polarization-maintaining optical fiber. This innovative method involves providing a glass rod with a cladding glass layer surrounding a core glass layer. The process includes machining the glass rod to form a noncircular cross-section, depositing fine silica glass particles, and sintering to create a support glass layer. This technique allows for a high ellipticity in the core, resulting in an optical fiber with desired size and birefringence index. Another significant patent involves an optical part for light transmission, which integrates a light conductor with a light emitting and/or receiving element. This design enables the optical part to function effectively in both high and room temperature environments without significant loss in light transmission.

Career Highlights

Throughout his career, Yuuetsu Takuma has worked with prominent companies such as Hitachi Cable, Inc. and Hitachi, Ltd. His experience in these organizations has contributed to his expertise in optical technologies and innovations.

Collaborations

Takuma has collaborated with notable colleagues, including Hiroshi Kajioka and Kohdo Yamada. These partnerships have likely fostered a creative environment that has led to further advancements in optical fiber technology.

Conclusion

Yuuetsu Takuma's work in optical fiber technology exemplifies innovation and dedication to advancing the field. His patents reflect a deep understanding of materials and processes that enhance light transmission capabilities.

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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