Fukuyama, Japan

Takashi Nagamine

This inventor holds 4 USPTO granted patents. Top assignee: Nippon Kokan Kabushiki Kaisha. Active years: 1978-1982.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Nagamine. Retrieved from https://idiyas.com/inventor/takashi-nagamine-ftpqi93s

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 = 9.4

ph-index = 3

Forward Citations = 19(Granted Patents)


Company Filing History:


Years Active: 1978-1982

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4 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Takashi Nagamine

Introduction

Takashi Nagamine is a prominent inventor based in Fukuyama, Japan. He has made significant contributions to the field of welding technology, particularly in the seam-welding of steel pipes. With a total of 4 patents to his name, Nagamine's work has advanced the efficiency and effectiveness of welding processes.

Latest Patents

One of Nagamine's latest patents is a method and apparatus for seam-welding steel pipes. This innovative method involves providing a conductive net-like enclosure tube around a cable that supplies direct electric current from a power source to the welding head. The process allows for the conduction of direct electric current through the enclosure tube and the steel pipe in opposite directions, which minimizes the magnetic field created around the net enclosure tube, resulting in a high-quality welded seam.

Another notable patent focuses on preventing the magnetization of pipe blanks during the GMA welding process. This method utilizes direct electric current supplied to multiple consumable electrodes in tandem, with alternating polarities. By ensuring that the lines of magnetic force produced by the direct electric current cancel each other out, Nagamine's technique effectively prevents magnetization of the pipe blank, thereby reducing the risk of magnetic arc blow during welding.

Career Highlights

Nagamine is currently employed at Nippon Kokan Kabushiki Kaisha, a leading company in the steel industry. His work there has been instrumental in developing advanced welding technologies that enhance production efficiency and product quality.

Collaborations

Throughout his career, Nagamine has collaborated with notable colleagues, including Hiroyoshi Matsubara and Kenji Takeshige. These partnerships have fostered innovation and contributed to the success of various projects within the company.

Conclusion

Takashi Nagamine's contributions to welding technology have had a lasting impact on the industry. His innovative patents and collaborative efforts continue to shape the future of steel pipe manufacturing.

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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