Osaka, Japan

Hiroki Nariyasu

This inventor holds 2 USPTO granted patents, plus 1 CIPO patent and 2 EPO patents. Top assignee: Yanmar Co., Ltd.. Active years: 2015-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroki Nariyasu. Retrieved from https://idiyas.com/inventor/hiroki-nariyasu

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


% Patents Active = 50.0


 

Average Co-Inventor Count = 3.4

ph-index = 1


Company Filing History:


Years Active: 2015-2018

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2 patents (USPTO):Explore Patents

Title: Hiroki Nariyasu: Innovator in Engine Systems

Introduction

Hiroki Nariyasu is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of engine systems, holding 2 patents that showcase his innovative approach to improving engine efficiency and functionality.

Latest Patents

Nariyasu's latest patents include an advanced engine coolant circuit and a novel engine system. The engine coolant circuit is designed to circulate coolant effectively to cool an engine. It features a plurality of thermostatic switching valves arranged in parallel, along with electrically driven three-way valves that enhance the cooling process. This design also incorporates a radiator and an engine waste heat recovery device, optimizing the engine's thermal management.

The engine system patent addresses the challenge of discharging condensed water from an exhaust gas passage. This system includes a catalyst placed within the exhaust gas passage and a determination device that assesses whether the catalyst is immersed in condensed water when the engine starts. The operation continuing device ensures that the engine can continue running under these conditions, thereby improving overall engine performance.

Career Highlights

Hiroki Nariyasu is currently employed at Yanmar Co., Ltd., a company known for its commitment to innovation in engine technology. His work at Yanmar has allowed him to develop and refine his patented technologies, contributing to the company's reputation as a leader in the industry.

Collaborations

Nariyasu collaborates with talented colleagues, including Kenichi Fukuda and Hirotoshi Kihara. Their combined expertise fosters a creative environment that drives innovation and enhances the development of cutting-edge engine systems.

Conclusion

Hiroki Nariyasu's contributions to engine technology through his patents reflect his dedication to innovation and improvement in the automotive field. His work continues to influence the industry, paving the way for more efficient and effective engine 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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