Handa, Japan

Eiichi Yokoyama

This inventor holds 1 USPTO granted patent. Top assignee: Kawasaki Steel Corporation. Active years: 1986.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Eiichi Yokoyama. Retrieved from https://idiyas.com/inventor/eiichi-yokoyama-o1p2rsul

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 = 4.0

ph-index = 1

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 1986

Loading Chart...
1 patent (USPTO):Explore Patents

Title: Eiichi Yokoyama: Innovator in Electric Welded Steel Tube Technology

Introduction

Eiichi Yokoyama is a notable inventor based in Handa, Japan. He has made significant contributions to the field of steel manufacturing, particularly in the development of methods for forming electric welded steel tubes. His innovative approach has led to advancements that enhance the quality and efficiency of steel tube production.

Latest Patents

Eiichi Yokoyama holds a patent for a method of forming electric welded steel tubes. This method involves the formation of a hot-rolled sheet into a cylindrical shape, with specific adjustments made to eliminate edge waves and cambers in the tube seam edge. The patent outlines three critical forming condition factors, including the downhill value of the hot-rolled sheet, the total reduction of the tandem type fin-pass rolls, and the distribution of the fin-pass reduction.

Career Highlights

Yokoyama is associated with Kawasaki Steel Corporation, where he has applied his expertise in steel manufacturing. His work has been instrumental in improving production techniques and ensuring high-quality outputs in the steel industry.

Collaborations

Eiichi Yokoyama has collaborated with notable colleagues, including Takaaki Toyooka and Akio Ejima. These partnerships have fostered innovation and contributed to advancements in their respective fields.

Conclusion

Eiichi Yokoyama's contributions to the steel industry, particularly through his patented method for forming electric welded steel tubes, highlight his role as an influential inventor. His work continues to impact the manufacturing processes within 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]
Loading…