Osaka, Japan

Hiroyuki Machiyama

This inventor holds 6 USPTO granted patents and 1 published patent application and 3 EPO patents. Top assignees: Yanmar Co., Ltd., Yanmar Power Technology Co., Inc.. Active years: 2010-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Machiyama. Retrieved from https://idiyas.com/inventor/hiroyuki-machiyama

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

USPTO Granted Patents = 6 

% Patents Active = 16.7

 

Average Co-Inventor Count = 3.9

ph-index = 2

Forward Citations = 5(Granted Patents)


Company Filing History:


Years Active: 2010-2022

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6 patents (USPTO):Explore Patents

Title: Hiroyuki Machiyama: Innovating Fuel Injection Technologies

Introduction

Hiroyuki Machiyama is a prominent inventor based in Osaka, Japan, known for his contributions to the field of engine technology. With an impressive portfolio of six patents, Machiyama has made significant advancements, particularly in fuel injection devices. His innovative approaches have drawn attention in the automotive and engineering sectors.

Latest Patents

One of Machiyama's latest patents focuses on a fuel injection device for engines. This cutting-edge technology is designed to extend the lifespan of fuel injection systems while maintaining excellent responsiveness. The device features a control rack that is supported to slide in an axial direction, allowing precise adjustments to the amount of fuel delivered by a pumping mechanism. Additionally, it incorporates an actuator to move an operation section, and a link lever that rocks with the actuator's movement, causing the control rack to slide. Moreover, the actuator-side connection section is strategically placed coaxially with the actuator's operating section to ensure seamless operation. This innovation presents a remarkable leap forward in fuel injection device design.

Career Highlights

Hiroyuki Machiyama has had a successful career with notable companies including Yanmar Co., Ltd. and Yanmar Power Technology Co., Inc. His work with these organizations has allowed him to refine his expertise and contribute to groundbreaking advancements in engine technologies.

Collaborations

Throughout his career, Machiyama has collaborated with talented colleagues such as Ryota Iwano and Hideo Shiomi. These professional relationships have fostered a creative environment for innovation, enabling the team to explore new ideas and push the boundaries of engineering.

Conclusion

Hiroyuki Machiyama exemplifies the spirit of innovation in the field of engine technology. His six patents, particularly in fuel injection devices, illustrate his commitment to enhancing performance and longevity in automotive systems. As he continues to innovate, the impact of his work will likely resonate throughout the industry for years to come.

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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