Tokyo, Japan

Yasuhiro Koyama

This inventor holds 1 USPTO granted patent and 1 EPO patent. Top assignee: Mitsubishi Heavy Industries Limited. Active years: 2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuhiro Koyama. Retrieved from https://idiyas.com/inventor/yasuhiro-koyama-ri3a9vj0

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 = 6.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2020

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1 patent (USPTO):Explore Patents

Title: Yasuhiro Koyama: Innovator in Vertical Pump Technology

Introduction

Yasuhiro Koyama is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of engineering, particularly in the development of innovative pumping solutions. His work has led to advancements that enhance efficiency and functionality in various industrial applications.

Latest Patents

Koyama holds a patent for a vertical pump and urea synthesis plant. This invention includes a rotary shaft, multi-stage impellers, and a casing that accommodates these impellers. The design features a mechanical seal in the casing's penetration part for the rotary shaft, along with a balance sleeve positioned strategically between the final stage impeller and the mechanical seal. Additionally, the invention incorporates an intermediate chamber that communicates with an intermediate stage impeller, a low-pressure chamber, and a partition wall that divides the intermediate and low-pressure chambers. This innovative design aims to improve the efficiency and reliability of vertical pumps.

Career Highlights

Yasuhiro Koyama is currently employed at Mitsubishi Heavy Industries Limited, a leading company in the manufacturing sector. His role involves applying his expertise in pump technology to develop solutions that meet the demands of modern industries. Koyama's dedication to innovation has positioned him as a key figure in his field.

Collaborations

Throughout his career, Koyama has collaborated with notable colleagues, including Hiroshi Funakoshi and Yasushi Ueda. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

Yasuhiro Koyama's contributions to vertical pump technology exemplify the spirit of innovation in engineering. His patent and work at Mitsubishi Heavy Industries Limited highlight his commitment to advancing industrial solutions. Koyama's achievements continue to inspire future generations of inventors and engineers.

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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