Ageo, Japan

Hidefumi Fujihara

This inventor holds 1 USPTO granted patent. Top assignee: Nissan Diesel Motor Co., Ltd.. Active years: 1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hidefumi Fujihara. Retrieved from https://idiyas.com/inventor/hidefumi-fujihara

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


% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 1985

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1 patent (USPTO):Explore Patents

Title: Innovations of Hidefumi Fujihara

Introduction

Hidefumi Fujihara is a notable inventor based in Ageo, Japan. He has made significant contributions to the field of engineering, particularly in the area of internal combustion engines. His innovative approach to preventing cavitation has garnered attention in the automotive industry.

Latest Patents

Fujihara holds a patent for a "System for preventing cavitation in water-cooled internal combustion." This invention features an air introducing passageway that allows air to be introduced into a cooling water passageway at the suction portion of a water pump. The system includes a means for storing air, such as a water tank, and an air metering mechanism that controls the amount of air supplied to the cooling water circulating passageway. This design effectively maintains an air mixture ratio to prevent cavitation erosion, enhancing engine cooling performance.

Career Highlights

Fujihara is associated with Nissan Diesel Motor Co., Ltd., where he has applied his expertise in engine technology. His work has contributed to advancements in engine cooling systems, which are crucial for improving the efficiency and longevity of internal combustion engines.

Collaborations

Fujihara has collaborated with notable colleagues, including Hiroshi Okazoe and Yoichi Hashimoto. Their combined efforts have led to innovative solutions in the automotive sector, particularly in enhancing engine performance and reliability.

Conclusion

Hidefumi Fujihara's contributions to the field of internal combustion engine technology are noteworthy. His patent for preventing cavitation demonstrates his commitment to innovation and engineering excellence. His work continues to influence the automotive industry positively.

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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