Tokyo, Japan

Katsuhisa Yamauchi

This inventor holds 4 USPTO granted patents and 1 published patent application and 3 EPO patents. Top assignee: Jfe Steel Corporation. Active years: 2012-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsuhisa Yamauchi. Retrieved from https://idiyas.com/inventor/katsuhisa-yamauchi

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

USPTO Granted Patents = 4 

% Patents Active = 75.0

 

Average Co-Inventor Count = 5.1

ph-index = 3

Forward Citations = 12(Granted Patents)


Location History:

  • Chiba, JP (2012 - 2013)
  • Tokyo, JP (2019 - 2022)

Company Filing History:


Years Active: 2012-2022

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4 patents (USPTO):Explore Patents

Title: **Katsuhisa Yamauchi: Innovator in Ferritic Stainless Steel**

Introduction

Katsuhisa Yamauchi is a notable inventor based in Tokyo, Japan, who has contributed significantly to the field of materials science, particularly in the development of ferritic stainless steel. With a total of four patents to his name, his work continues to pave the way for advancements in corrosion-resistant materials.

Latest Patents

Among his latest patents is an innovative formulation for ferritic stainless steel that boasts exceptional corrosion resistance and superior brazeability when subjected to high-temperature brazing with nickel-containing filler metals. This composition includes mass percentages of elements such as carbon, silicon, manganese, phosphorus, sulfur, chromium, nickel, copper, molybdenum, aluminum, niobium, and nitrogen, all meticulously balanced to enhance performance. Another significant patent focuses on a novel process for producing a ferritic stainless steel, characterized by a nitrogen-enriched layer that provides enhanced surface properties.

Career Highlights

Yamauchi is currently employed at JFE Steel Corporation, a leading company in the steel industry known for its commitment to innovation and quality. His work at JFE Steel has furthered the company's reputation as a pioneer in advanced steel solutions, particularly those catering to diverse industrial applications.

Collaborations

Throughout his career, Katsuhisa Yamauchi has collaborated with esteemed colleagues such as Kunio Fukuda and Shin Ishikawa. These partnerships have fostered a creative environment that encourages the exchange of ideas, leading to remarkable advancements in the field of metallurgy.

Conclusion

Katsuhisa Yamauchi stands out as a dedicated inventor whose contributions to ferritic stainless steel have had a significant impact on material engineering. His innovative patents and collaborative efforts continue to inspire advancements in corrosion resistance and brazing technologies, cementing his place as a key figure in the steel 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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