Yasugi, Japan

Keiji Inoue

This inventor holds 2 USPTO granted patents. Top assignee: Hitachi Metals, Ltd.. Active years: 2007-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiji Inoue. Retrieved from https://idiyas.com/inventor/keiji-inoue-31fpvwe0

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2007-2010

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2 patents (USPTO):Explore Patents

Title: Keiji Inoue: Innovator in High-Speed Tool Steel Manufacturing

Introduction

Keiji Inoue is a prominent inventor based in Yasugi, Japan. He has made significant contributions to the field of materials science, particularly in the development of high-speed tool steels. With a total of 2 patents to his name, Inoue's work has garnered attention for its innovative approaches to enhancing tool performance.

Latest Patents

Inoue's latest patents focus on methods for manufacturing high-speed tool steel. The first patent describes a high-speed tool steel that is high in impact value and free from variations in tool performance. This steel comprises specific mass percentages of carbon, silicon, manganese, chromium, tungsten, molybdenum, vanadium, and niobium. The unique composition ensures that the carbides dispersed in the matrix of the tool steel have an average grain size of ≤0.5 μm and a dispersion density of particles of the carbides of ≥80×10 particles/mm. The second patent reiterates similar features, emphasizing the importance of maintaining consistent performance in high-speed applications.

Career Highlights

Inoue is currently associated with Hitachi Metals, Ltd., a leading company in the manufacturing of advanced materials. His work at Hitachi has allowed him to push the boundaries of tool steel technology, contributing to the company's reputation for innovation and quality.

Collaborations

Inoue collaborates with Shiho Fukumoto, a fellow innovator in the field. Their partnership has led to advancements in the development of high-performance materials that meet the demands of modern manufacturing.

Conclusion

Keiji Inoue's contributions to high-speed tool steel manufacturing exemplify the spirit of innovation in materials science. His patents reflect a commitment to enhancing tool performance and reliability, making a lasting impact on 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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