Tokyo, Japan

Hiroki Narumiya

This inventor holds 3 USPTO granted patents and 2 EPO patents. Top assignees: Nippon Steel Corporation, Nippon Steel Sumitomo Metal Corporation. Active years: 2019-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroki Narumiya. Retrieved from https://idiyas.com/inventor/hiroki-narumiya

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


% Patents Active = 33.3

 

Average Co-Inventor Count = 2.8

ph-index = 1

Forward Citations = 15(Granted Patents)


Company Filing History:


Years Active: 2019-2020

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3 patents (USPTO):Explore Patents

Title: Hiroki Narumiya: Innovator in Material Science

Introduction

Hiroki Narumiya is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of material science, particularly in the development of high-strength components. With a total of 3 patents, his work focuses on enhancing the performance and durability of mechanical parts.

Latest Patents

Narumiya's latest patents include innovative designs that address critical challenges in material strength. One of his notable inventions is a nitrided part and method of producing the same. This invention features a nitrided part with excellent fatigue strength, characterized by specific constituents and structures comprised of ferrite and pearlite. The ferrite grains exhibit an aspect ratio of 4.5 or more, ensuring optimal performance in areas where stress is likely to concentrate. Additionally, he has developed a high-strength gear that maintains low bending stress during power transmission, thereby improving the dedendum bending strength.

Career Highlights

Throughout his career, Narumiya has worked with leading companies in the industry, including Nippon Steel Corporation and Nippon Steel & Sumitomo Metal Corporation. His experience in these organizations has allowed him to refine his expertise in material science and engineering.

Collaborations

Narumiya has collaborated with notable colleagues such as Takashi Fujita and Yutaka Neishi. Their combined efforts have contributed to advancements in the field and have fostered a collaborative environment for innovation.

Conclusion

Hiroki Narumiya stands out as a key figure in the realm of material science, with a focus on developing high-strength components. His patents reflect a commitment to enhancing the durability and performance of mechanical parts, making significant strides 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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