Yokohama, Japan

Kazunari Hattori

This inventor holds 13 USPTO granted patents, plus 1 CIPO patent. Top assignees: Sumitomo Electric Industries, Limited, Sei Optifrontier Co., Ltd.. Active years: 2000-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazunari Hattori. Retrieved from https://idiyas.com/inventor/kazunari-hattori

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


% Patents Active = 84.6

 

Average Co-Inventor Count = 1.9

ph-index = 5

Forward Citations = 100(Granted Patents)


Location History:

  • Yokohami, JP (2001)
  • Kanagawa, JP (2003 - 2010)
  • Yokohama, JP (2000 - 2018)

Company Filing History:


Years Active: 2000-2018

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13 patents (USPTO):Explore Patents

Title: Kazunari Hattori: Innovator in Optical Fiber Technology

Introduction

Kazunari Hattori is a prominent inventor based in Yokohama, Japan, known for his significant contributions to the field of optical fiber technology. With an impressive portfolio of 13 patents, Hattori has demonstrated his expertise in innovation and invention within this specialized area.

Latest Patents

One of his latest inventions is the method for fusion splicing optical fibers, which specifically addresses the fusion splicing of a holey optical fiber with a large number of air holes in its cladding. This method utilizes arc discharge heating to achieve a breakthrough in the splicing process. Initially, the process applies arc discharge heating to elevate the temperature behind the end surface of the holey optical fiber, making its tip transparent. Once the cores are aligned, the final fusion splicing occurs through a second application of arc discharge heating. This innovative technique incorporates an arc heating time ideally between 200 to 400 milliseconds, enhancing the efficiency and effectiveness of fiber connections.

Career Highlights

Kazunari Hattori has had a noteworthy career, contributing his talents to leading companies such as Sumitomo Electric Industries and Sei Optifrontier. His work in these organizations has helped advance the optical fiber technologies that are crucial for modern communication systems.

Collaborations

Throughout his career, Hattori has collaborated with esteemed colleagues, including Tsutomu Watanabe and Yutaka Ito. These partnerships have fostered an environment of innovative thinking, allowing for the development of advanced technologies that continue to impact the industry positively.

Conclusion

In summary, Kazunari Hattori stands out as a key figure in the realm of optical fiber innovation, with a solid foundation of patents and a successful career marked by significant collaborations. His contributions enhance technology's reliability and functionality, paving the way for future advancements in the field.

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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