Amagasaki, Japan

Yoshiki Yamakawa

This inventor holds 2 USPTO granted patents. Top assignees: Mitshishi Cable Industries, Ltd., Mitsubishi Cable Industries, Ltd.. Active years: 2009-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiki Yamakawa. Retrieved from https://idiyas.com/inventor/yoshiki-yamakawa

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 = 4.8

ph-index = 1

Forward Citations = 6(Granted Patents)


Location History:

  • Tokyo, JP (2009)
  • Amagasaki, JP (2022)

Company Filing History:


Years Active: 2009-2022

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2 patents (USPTO):Explore Patents

Title: The Innovations of Yoshiki Yamakawa

Introduction

Yoshiki Yamakawa is a notable inventor based in Amagasaki, Japan. He has made significant contributions to the field of optical technology, holding two patents that showcase his innovative spirit and technical expertise.

Latest Patents

Yamakawa's latest patents include an advanced optical fiber core wire. This invention features a coated optical fiber that consists of a core and a cladding, with a first buffer layer that has a lower refractive index than the cladding and a Shore D hardness of D/20.0/1 or higher. Additionally, a second buffer layer covers the first, possessing a higher Shore D hardness. The design is completed with a jacket that encases the second buffer layer. Another significant patent is the optical fiber/glass tube fusion-spliced structure. This structure includes an optical fiber made of glass and a glass tube, where the optical fiber is inserted. The fusion spliced structure allows for a seamless connection between the outer circumference of the optical fiber and the inner circumference of the glass tube, utilizing materials with varying fusion points for enhanced performance.

Career Highlights

Throughout his career, Yamakawa has worked with prominent companies, including Mitsubishi Cable Industries, Ltd. and Mitsubushi Cable Industries, Ltd. His experience in these organizations has contributed to his development as an inventor and has provided him with a platform to innovate in the field of optical technology.

Collaborations

Yamakawa has collaborated with notable coworkers such as Mamoru Nakamura and Takeshi Satake. Their combined expertise has likely fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Yoshiki Yamakawa's contributions to optical technology through his patents and career experiences highlight his role as a significant inventor in the field. His innovative designs continue to influence advancements in optical fiber 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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