Yokohama, Japan

Hirohisa Fujimoto

This inventor holds 1 USPTO granted patent. Top assignee: Fujikura Limited. Active years: 1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirohisa Fujimoto. Retrieved from https://idiyas.com/inventor/hirohisa-fujimoto-iiko9gph

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 = 7.0

ph-index = 1

Forward Citations = 3(Granted Patents)


Company Filing History:


Years Active: 1991

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1 patent (USPTO):Explore Patents

Title: Hirohisa Fujimoto: Innovator in Optical Fiber Technology

Introduction

Hirohisa Fujimoto is a prominent inventor based in Yokohama, Japan. He is known for his significant contributions to the field of optical fiber technology. His innovative work has led to advancements in the manufacturing methods of optical fiber couplers.

Latest Patents

Hirohisa Fujimoto holds a patent for a manufacturing method for polarization maintaining optical fiber couplers. This invention is crucial for joining light signals at optical fiber branch points. The method employs polarization maintaining optical fibers and describes a technique for aligning the stress applying parts of these fibers. This ensures that polarized optical signals remain in a polarized state while transiting through the couplers. He has 1 patent to his name.

Career Highlights

Fujimoto is associated with Fujikura Limited, a company renowned for its advancements in telecommunications and optical technologies. His work at Fujikura has positioned him as a key player in the development of innovative optical solutions.

Collaborations

Hirohisa Fujimoto has collaborated with notable colleagues, including Hiroyuki Taya and Mikio Yoshinuma. These collaborations have further enhanced the research and development efforts in the field of optical fibers.

Conclusion

Hirohisa Fujimoto's contributions to optical fiber technology exemplify the impact of innovation in telecommunications. His patent for the manufacturing method of polarization maintaining optical fiber couplers showcases his expertise and commitment to advancing this critical 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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