Tokyo, Japan

Seiji Hashimoto

This inventor holds 3 USPTO granted patents and 2 published patent applications and 4 EPO patents. Top assignees: Nippon Steel Welding Products and Engineering Co., Ltd., Nippon Steel Corporation, Pioneer Electronic Corporation. Active years: 1981-1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seiji Hashimoto. Retrieved from https://idiyas.com/inventor/seiji-hashimoto-pygl7756

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

USPTO Granted Patents = 3 

% Patents Active = 100.0

 

Average Co-Inventor Count = 8.9

ph-index = 2

Forward Citations = 322(Granted Patents)


Company Filing History:


Years Active: 1981-1995

Loading Chart...
Loading Chart...
3 patents (USPTO):Explore Patents

Title: Seiji Hashimoto: Innovator in Tube Manufacturing Technology

Introduction

Seiji Hashimoto, an accomplished inventor based in Tokyo, Japan, has made significant contributions to the field of manufacturing technology. With a total of three patents to his name, he has developed innovative methods that enhance the efficiency and quality of manufacturing processes, particularly in the production of specialized tubes.

Latest Patents

Hashimoto's latest invention involves methods for manufacturing tubes filled with powdery and granular substances. This process includes key steps such as forming a metal strip into a tube, feeding the desired substances into the tube as a core, and joining the edges of the tube using high-frequency welding techniques. An important aspect of this invention is that the top layer of the core is composed of materials with low magnetic susceptibility, ensuring that they remain unaffected by the magnetized edges of the tube during the welding process. This innovative approach not only optimizes the structural integrity of the tubes but also enhances their functionality across various applications.

Career Highlights

Throughout his career, Seiji Hashimoto has worked with notable companies, including Nippon Steel Welding Products and Engineering Co., Ltd., and Pioneer Electronics Corporation. His experience at these organizations has allowed him to hone his skills in engineering and manufacturing processes, contributing to his impressive portfolio of patents.

Collaborations

Hashimoto's professional journey has involved collaborative efforts with esteemed colleagues, including Nobuo Araki and Takeji Kagami. These partnerships have facilitated the exchange of ideas and expertise, fostering a creative environment that has led to his noteworthy inventions.

Conclusion

Seiji Hashimoto stands out as a pioneering inventor in the realm of manufacturing technology. His innovative patents and collaborative spirit have made a lasting impact on the industry, showcasing the importance of creativity and teamwork in advancing technological solutions. His contributions continue to inspire the next generation of inventors and engineers.

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…