Kyoto, Japan

Motoyuki Maekawa

This inventor holds 2 USPTO granted patents. Top assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Mitsubishi Jukogyo Kabushiki Kaisha. Active years: 1989-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Motoyuki Maekawa. Retrieved from https://idiyas.com/inventor/motoyuki-maekawa

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 = 7.0

ph-index = 2

Forward Citations = 19(Granted Patents)


Company Filing History:


Years Active: 1989-1990

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2 patents (USPTO):Explore Patents

Title: Motoyuki Maekawa: Innovator in Internal Combustion Engine Technology

Introduction

Motoyuki Maekawa is a notable inventor based in Kyoto, Japan. He has made significant contributions to the field of internal combustion engines, holding 2 patents that showcase his innovative designs and improvements.

Latest Patents

Maekawa's latest patents include advancements in combustion chamber technology for sub-chamber type internal combustion engines. One patent describes an improved combustion chamber that defines a space extending contiguously to a subchamber injection port within a subchamber mouthpiece. This design features a control rod and an actuator that utilizes a working substance, such as wax or rubber, to optimize engine performance during varying loading conditions. Another patent focuses on enhancing fuel efficiency and reducing smoke density in combustion chambers, incorporating a sub-chamber port that communicates with a subsidiary combustion chamber formed within the cylinder head.

Career Highlights

Throughout his career, Maekawa has worked with prominent companies, including Mitsubishi Jukogyo Kabushiki Kaisha and Mitsubishi Jidosha Kogyo Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in engine technology and innovation.

Collaborations

Maekawa has collaborated with notable colleagues, including Tadao Omura and Koji Imoto, further enriching his work in the field of internal combustion engines.

Conclusion

Motoyuki Maekawa's contributions to internal combustion engine technology reflect his dedication to innovation and efficiency. His patents demonstrate a commitment to improving engine performance and environmental impact.

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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