Sagamihara, Japan

Hiroshi Tachikawa

This inventor holds 1 USPTO granted patent. Top assignee: Nippon Steel Corporation. Active years: 1979.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Tachikawa. Retrieved from https://idiyas.com/inventor/hiroshi-tachikawa-scqfgxeq

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


% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 22(Granted Patents)


Company Filing History:


Years Active: 1979

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1 patent (USPTO):Explore Patents

Title: Hiroshi Tachikawa: Innovator in TIG Welding Technology

Introduction

Hiroshi Tachikawa is a notable inventor based in Sagamihara, Japan. He has made significant contributions to the field of welding technology, particularly through his innovative methods in TIG welding. His work has been recognized for its potential to enhance welding efficiency and quality.

Latest Patents

Hiroshi Tachikawa holds a patent for a "Method and apparatus for TIG welding." This invention involves a method for TIG welding that utilizes a plurality of nonconsumable electrodes extending from the tip of a TIG welding torch, along with a filler wire fed through the space between the electrodes. Each electrode is independently supplied with power, allowing for precise control over the welding process. The molten pool is formed by melting both the base metal and the filler wire through arcs generated between the electrodes and the base metal. The melting of the base metal is primarily controlled by one electrode, while the other electrode mainly controls the melting of the filler wire.

Career Highlights

Hiroshi Tachikawa is associated with Nippon Steel Corporation, a leading company in the steel industry. His work at Nippon Steel has allowed him to apply his innovative ideas in a practical setting, contributing to advancements in welding technology.

Collaborations

Hiroshi has collaborated with notable coworkers such as Haruo Eujita and Yasushi Ishikawa. Their combined expertise has fostered an environment of innovation and development within their projects.

Conclusion

Hiroshi Tachikawa's contributions to TIG welding technology exemplify the impact of innovation in industrial applications. His patent and work at Nippon Steel Corporation highlight the importance of advancements in welding techniques.

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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