Shiga, Japan

Tutomu Hashimoto

This inventor holds 1 USPTO granted patent. Top assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha. Active years: 1981.

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

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 = 14(Granted Patents)


Company Filing History:


Years Active: 1981

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1 patent (USPTO):Explore Patents

Title: Tutomu Hashimoto: Innovator in Pipe Coupling Technology

Introduction

Tutomu Hashimoto is a notable inventor based in Shiga, Japan. He has made significant contributions to the field of pipe coupling technology. His innovative designs have improved the efficiency and reliability of pipe joint connections.

Latest Patents

Hashimoto holds a patent for a pipe coupling and pipe joint connection. This invention features a main body that includes a threaded portion for engagement with inside-coated pipes. The design incorporates an annular groove and an annular projection, which are strategically placed on the inside circumferential surface of the main body. The coupling allows for a leakage-free connection by simply threading inner-coated steel pipes together.

Career Highlights

Hashimoto is associated with Sekisui Kagaku Kogyo Kabushiki Kaisha, a company known for its advancements in chemical technology. His work has led to the development of practical solutions in the piping industry, enhancing the safety and effectiveness of pipe installations.

Collaborations

Throughout his career, Hashimoto has collaborated with esteemed colleagues such as Yoshiaki Bando and Takesi Okuyama. These partnerships have fostered innovation and contributed to the success of their projects.

Conclusion

Tutomu Hashimoto's contributions to pipe coupling technology exemplify the impact of innovative thinking in engineering. His patent reflects a commitment to creating practical solutions that enhance the functionality of piping systems.

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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