Tsukuba, Japan

Kazuhide Nakajima

This inventor holds 52 USPTO granted patents and 51 published patent applications and 28 EPO patents, primarily in Optical Fiber Technology. Top assignees: Nippon Telegraph and Telephone Corporation, Ntt Corporation, Fujikura Limited. Active years: 2007-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuhide Nakajima. Retrieved from https://idiyas.com/inventor/kazuhide-nakajima

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

USPTO Granted Patents = 52 

% Patents Active = 100.0

 

Average Co-Inventor Count = 4.1

ph-index = 2

Forward Citations = 54(Granted Patents)


Location History:

  • Ibaraki, JP (2015)
  • Tsukuba, JP (2007 - 2022)
  • Tokyo, JP (2016 - 2022)
  • Musashino, JP (2023 - 2024)

Company Filing History:


Years Active: 2007-2026

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Areas of Expertise:
Optical Fiber
Multicore Fiber
Optical Amplifier
Transmission System
Optical Connector
Photonic Crystal Fiber
Evaluation Method
Crosstalk Measurement
Shape Measurement
Propagation Mode Loss
Optical Communication
Manufacturing Method
52 patents (USPTO):Explore Patents

Title: Innovations by Kazuhide Nakajima: Pioneering Optical Fiber Technologies

Introduction: Kazuhide Nakajima, based in Tsukuba, Japan, is a prominent inventor known for his significant contributions to optical fiber technology. With a remarkable portfolio of 38 patents, Nakajima has driven innovations that enhance the precision of shape measurement systems and methodologies, crucial for various applications in engineering and telecommunications.

Latest Patents: Among his recent innovations is a shape measurement system and method designed for capturing the three-dimensional shape of linear objects over long distances with exceptional resolution. This advanced system incorporates a multicore optical fiber featuring a central core surrounded by multiple outer peripheral cores. The device utilizes backward Brillouin scattered light to measure and analyze the position coordinates of a linear structure with an unknown shape. Another noteworthy innovation is the design of an optical fiber that integrates a solid core and a specialized cladding medium, which collectively reduce Rayleigh scattering loss and wavelength dispersion, further improving optical performance.

Career Highlights: Nakajima has held influential roles in leading companies, most notably at Nippon Telegraph and Telephone Corporation and The Furukawa Electric Co., Ltd. His tenure at these organizations has paved the way for groundbreaking advancements in communication technologies, particularly in optical systems.

Collaborations: Throughout his career, Nakajima has collaborated with esteemed colleagues including Takashi Matsui and Taiji Sakamoto. These partnerships have contributed to the refinement and application of innovative technologies in the optical fiber field.

Conclusion: Kazuhide Nakajima stands as a key figure in the evolution of optical fiber technologies, with his inventions setting standards for precision and efficiency. His work continues to influence the future of shape measurement systems, reinforcing the importance of innovation in modern engineering practices.

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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