Tokyo, Japan

Hiroyuki Yanagihara

This inventor holds 2 USPTO granted patents. Top assignee: Nittetsu Mining Co., Ltd.. Active years: 1984-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Yanagihara. Retrieved from https://idiyas.com/inventor/hiroyuki-yanagihara

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 = 4.0

ph-index = 2

Forward Citations = 29(Granted Patents)


Location History:

  • Mitaka, JP (1984)
  • Tokyo, JP (1996)

Company Filing History:


Years Active: 1984-1996

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2 patents (USPTO):Explore Patents

Title: Hiroyuki Yanagihara: Innovator in Filter Technology

Introduction

Hiroyuki Yanagihara is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of filter technology, holding a total of 2 patents. His innovative designs focus on enhancing the efficiency and functionality of filter elements.

Latest Patents

Yanagihara's latest patents include a reinforced filter element. This invention features a pair of filter plates made from a nonwoven fabric or felt of a polymeric material, shaped into a plate with a corrugated cross-section. The design positions the grooves of one filter plate in opposition to those of the other, providing enhanced filtration capabilities. The filter element is reinforced with supports placed across its width, secured at both ends with bolts. This innovative approach allows the reinforcements to circumscribe the corrugated cross-section of the filter plates, effectively holding the filter element in place.

Career Highlights

Hiroyuki Yanagihara is currently employed at Nittetsu Mining Co., Ltd., where he continues to develop and refine his inventions. His work has significantly impacted the industry, particularly in the area of filtration technology.

Collaborations

Yanagihara has collaborated with notable colleagues, including Takeshi Hazeyama and Teiji Hashimoto. Their combined expertise has contributed to the advancement of their projects and innovations.

Conclusion

Hiroyuki Yanagihara is a distinguished inventor whose work in filter technology has led to valuable patents and advancements in the field. His innovative spirit and collaborative efforts continue to drive progress in the industry.

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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