Kanagawa, Japan

Siro Hattori

This inventor holds 1 USPTO granted patent. Top assignee: Yuken Kogyo Kabushiki Kaisha. Active years: 1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Siro Hattori. Retrieved from https://idiyas.com/inventor/siro-hattori

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 = 7.0

ph-index = 1

Forward Citations = 33(Granted Patents)


Company Filing History:


Years Active: 1989

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1 patent (USPTO):Explore Patents

Title: Siro Hattori: Innovator in Hydraulic Technology

Introduction

Siro Hattori is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of hydraulic technology, particularly with his innovative designs in variable displacement piston pumps. His work has been recognized for its impact on efficiency and control in hydraulic systems.

Latest Patents

Hattori holds a patent for a variable displacement piston pump. This advanced pump design features a hydraulic pressure control mechanism that utilizes a proportional electro-hydraulic control valve. The system is designed to adjust the displacement of the variable element against a spring, allowing for a range of output flow from maximum to full cut-off. The pump's output pressure and flow are controlled electro-hydraulically through a closed loop, enhancing its operational efficiency.

Career Highlights

Siro Hattori is associated with Yuken Kogyo Kabushiki Kaisha, a company known for its expertise in hydraulic equipment. His work at Yuken has allowed him to develop and refine his innovative ideas, contributing to the company's reputation in the industry. Hattori's patent reflects his commitment to advancing hydraulic technology and improving system performance.

Collaborations

Throughout his career, Hattori has collaborated with esteemed colleagues such as Toshio Hashimoto and Susumu Yoshino. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Siro Hattori's contributions to hydraulic technology, particularly through his patented variable displacement piston pump, demonstrate his expertise and commitment to innovation. His work continues to influence the field and showcases the importance of advancements in hydraulic 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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