Tsukuba, Japan

Kazutoshi Takamizawa

This inventor holds 6 USPTO granted patents and 1 published patent application, plus 3 CIPO patents. Top assignees: Fujikura Limited, Nippon Telegraph and Telephone Corporation. Active years: 2016-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazutoshi Takamizawa. Retrieved from https://idiyas.com/inventor/kazutoshi-takamizawa

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

USPTO Granted Patents = 6 

% Patents Active = 100.0


Average Co-Inventor Count = 8.3

ph-index = 2

Forward Citations = 9(Granted Patents)


Location History:

  • Musashino, JP (2017)
  • Tsukuba, JP (2016 - 2019)

Company Filing History:


Years Active: 2016-2019

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6 patents (USPTO):Explore Patents

Title: Kazutoshi Takamizawa: An Innovator in Optical Fiber Technology

Introduction: Kazutoshi Takamizawa, located in Tsukuba, Japan, is a notable inventor recognized for his contributions to the field of optical fiber technology. With a portfolio that boasts six patents, Takamizawa has made significant advancements in the manufacturing and splicing of optical connectors.

Latest Patents: Among his latest innovations, Takamizawa has developed several patents that enhance the efficiency and functionality of optical connectors. His patent for a "Method of manufacturing optical connector" outlines a unique process that includes holding a first optical fiber with a pair of holding members while applying a solid refractive index-matching material layer. This innovation simplifies the insertion of the fiber into the ferrule, ensuring a reliable connection. Additionally, his "Optical fiber splicing tool and optical fiber splicing method" provides an advanced mechanism for splicing optical fibers. The tool allows for precise positioning and fixation of fibers, improving the quality and stability of splices.

Career Highlights: Takamizawa's professional journey includes significant tenures at major technology firms such as Fujikura Limited and Nippon Telegraph and Telephone Corporation. His work in these organizations has contributed greatly to the advancement of optical communications and fiber technology.

Collaborations: Throughout his career, Takamizawa has collaborated with esteemed colleagues like Takashi Yamaguchi and Kazuhiro Takizawa. These partnerships have fostered innovative thinking and the successful development of new technologies in optical fiber solutions.

Conclusion: Kazutoshi Takamizawa's contributions to optical fiber technology through his inventive spirit and collaborative efforts have positioned him as a prominent figure in the industry. His six patents serve as a testament to his dedication to innovation, benefiting future advancements in communications 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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