Osaka, Japan

Hideo Maruyama

This inventor holds 3 USPTO granted patents. Top assignees: Ashimori Industry Co., Ltd., Tokyo Gas Company Limited, Ashimori Kogyo Kabushiki Kaisha. Active years: 1989-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hideo Maruyama. Retrieved from https://idiyas.com/inventor/hideo-maruyama-wnyaqq2f

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 = 3

Forward Citations = 54(Granted Patents)


Company Filing History:


Years Active: 1989-1993

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3 patents (USPTO):Explore Patents

Title: Hideo Maruyama: Innovator in Pipeline Lining Technology

Introduction

Hideo Maruyama is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of pipeline lining technology, holding a total of 3 patents. His work focuses on improving methods and apparatuses for lining pipelines, particularly those that are buried underground.

Latest Patents

Maruyama's latest patents include innovative solutions such as a boring device for lining material in branched portions of lined conduits. He has also developed an apparatus for lining pipelines that incorporates liquid seal means. Additionally, he has created a method and apparatus for lining large-diameter pipelines using the evagination-lining technique. This technique utilizes compressed gas as a pressurized fluid, enhancing the sealing of pressure containers for inserting lining materials.

Career Highlights

Throughout his career, Hideo Maruyama has worked with prominent companies, including Tokyo Gas Company Limited and Ashimori Industry Co., Ltd. His experience in these organizations has allowed him to refine his expertise in pipeline technologies and contribute to advancements in the industry.

Collaborations

Maruyama has collaborated with notable individuals in his field, including Isaburo Yagi and Akio Morinaga. These partnerships have fostered innovation and the sharing of ideas, further enhancing the development of pipeline lining technologies.

Conclusion

Hideo Maruyama's contributions to pipeline lining technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry positively, showcasing the importance of innovation in engineering solutions.

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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