Kariya, Japan

Toshifumi Hayami

This inventor holds 9 USPTO granted patents and 1 published patent application. Top assignees: Denso Corporation, Nippondenso Co., Ltd., Mazda Motor Corporation. Active years: 1993-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshifumi Hayami. Retrieved from https://idiyas.com/inventor/toshifumi-hayami

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

USPTO Granted Patents = 9 

% Patents Active = 88.9

Average Co-Inventor Count = 1.6

ph-index = 4

Forward Citations = 91(Granted Patents)


Company Filing History:


Years Active: 1993-2019

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9 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Toshifumi Hayami

Introduction

Toshifumi Hayami is a notable inventor based in Kariya, Japan. He has made significant contributions to the field of engine technology, holding a total of 9 patents. His work focuses on enhancing engine efficiency and performance through innovative designs.

Latest Patents

One of Hayami's latest patents involves a unique engine design that features a piston with a cavity and a cylinder head configured to form a combustion chamber with a pent roof shape. This engine includes a fuel injection valve that injects fuel during specific phases of the engine cycle, optimizing combustion. The design incorporates injection openings arranged circumferentially around the valve's longitudinal axis, allowing for precise fuel delivery. The combustion chamber is divided into multiple fuel injection regions, enhancing the engine's overall efficiency.

Career Highlights

Throughout his career, Toshifumi Hayami has worked with prominent companies in the automotive industry, including Nippondenso Co., Ltd. and Denso Corporation. His experience in these organizations has allowed him to develop and refine his innovative engine technologies.

Collaborations

Hayami has collaborated with talented individuals in his field, including Naoyuki Kamiya and Takayuki Hikita. These partnerships have contributed to the advancement of his projects and the successful implementation of his inventions.

Conclusion

Toshifumi Hayami's contributions to engine technology demonstrate his commitment to innovation and efficiency. His patents reflect a deep understanding of engineering principles and a drive to improve automotive performance.

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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