Chikushino, Japan

Masato Hiromatsu

This inventor holds 2 USPTO granted patents. Top assignee: Mitsubishi Jukogyo Kabushiki Kaisha. Active years: 1977-1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masato Hiromatsu. Retrieved from https://idiyas.com/inventor/masato-hiromatsu

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 = 2.9

ph-index = 2

Forward Citations = 50(Granted Patents)


Location History:

  • Chikushino, JA (1977)
  • Tokyo, JP (1984)

Company Filing History:


Years Active: 1977-1984

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2 patents (USPTO):Explore Patents

Title: The Innovations of Masato Hiromatsu: Pioneering Hydraulic Pump Technologies

Introduction

Masato Hiromatsu, an inventive engineer based in Chikushino, Japan, has made significant contributions to the field of hydraulic technology. With a total of two patented inventions, Hiromatsu's innovative designs showcase his adeptness in creating efficient hydraulic pumps and motors that enhance mechanical performance across various applications.

Latest Patents

Hiromatsu's latest innovations include an **Axial Plunger Pump or Motor** and a **Hydraulic Pump of the Axial Piston Type**. The axial plunger pump features a unique valve plate with suction and discharge ports, designed to work in harmony with a rotary shaft mounted within a casing. This configuration includes a cylinder block coupled to the shaft, with a series of bores drilled parallel to the shaft. These bores accommodate plungers that reciprocate in response to the shaft's rotation, ensuring effective fluid movement. Additionally, the hydraulic pump employs check valves that facilitate fluid discharge when the internal cylinder pressure exceeds the discharge threshold. This system enhances fluid dynamics during the compression stroke, optimizing overall performance.

Career Highlights

Masato Hiromatsu is currently associated with Mitsubishi Jukogyo Kabushiki Kaisha, a leading player in the engineering and manufacturing sector. His work has not only contributed to the company's success but has also advanced the industry standard for hydraulic systems, underlining the importance of innovation in engineering.

Collaborations

Throughout his career, Hiromatsu has collaborated with esteemed colleagues Kuniyasu Nagatomo and Yukihiko Nagase. Their collective efforts in research and development have fostered an environment of innovation, enabling the creation of groundbreaking technologies in the hydraulic field.

Conclusion

Masato Hiromatsu stands out as a remarkable inventor specializing in hydraulic pumps and motors. His patents reflect a commitment to advancing technology and improving operational efficiency. By continuously pushing the boundaries of innovation, Hiromatsu ensures that his contributions will have lasting effects on the engineering community and beyond.

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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