Kako, Japan

Hiroaki Sakai

This inventor holds 1 USPTO granted patent. Top assignee: Nippon Air Brake Kabushiki Kaisha. Active years: 1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroaki Sakai. Retrieved from https://idiyas.com/inventor/hiroaki-sakai-4avdq1hd

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 = 3.0

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 1993

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1 patent (USPTO):Explore Patents

Title: Hiroaki Sakai: Innovator in Hydraulic Circuit Technology

Introduction

Hiroaki Sakai is a notable inventor based in Kako, Japan. He has made significant contributions to the field of hydraulic circuits, particularly in the context of construction machinery. His innovative approach has led to the development of a unique hydraulic circuit that addresses common challenges faced in the industry.

Latest Patents

Sakai holds a patent for a hydraulic circuit with a compensator valve biased with the highest pressure. This invention is designed to enhance the performance of hydraulic circuits used in driving actuators of construction machines. The hydraulic circuit includes a single hydraulic pump and multiple direction changeover valves. These valves control the respective actuators, ensuring that the operation of one valve does not adversely affect the output oil pressure of the others. The inventive design incorporates a regulator that adjusts the hydraulic pump in response to any changes in oil pressure at the inlets of the direction changeover valves, effectively compensating for pressure fluctuations.

Career Highlights

Hiroaki Sakai is associated with Nippon Air Brake Kabushiki Kaisha, where he has been instrumental in advancing hydraulic technology. His work has not only improved the efficiency of hydraulic systems but has also contributed to the safety and reliability of construction machinery.

Collaborations

Sakai has collaborated with notable colleagues, including Ken-ichi Shimoura and Kensuke Ioku. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Hiroaki Sakai's contributions to hydraulic circuit technology exemplify the impact of innovative thinking in engineering. His patent reflects a deep understanding of hydraulic systems and a commitment to improving their functionality. Through his work, Sakai continues to influence the field and inspire future innovations.

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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