Hiroshima, Japan

Tetsuya Fujioka

This inventor holds 2 USPTO granted patents and 1 EPO patent. Top assignee: Mazda Motor Corporation. Active years: 2020-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsuya Fujioka. Retrieved from https://idiyas.com/inventor/tetsuya-fujioka-pfqlen6y

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 = 4.4

ph-index = 1

Forward Citations = 2(Granted Patents)


Location History:

  • Aki-gun, JP (2020)
  • Hiroshima, JP (2021)

Company Filing History:


Years Active: 2020-2021

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2 patents (USPTO):Explore Patents

Title: Tetsuya Fujioka: Innovator in Diesel Engine Technology

Introduction

Tetsuya Fujioka is a prominent inventor based in Hiroshima, Japan. He has made significant contributions to the field of diesel engine technology, holding 2 patents that showcase his innovative approach to fuel injection systems.

Latest Patents

Fujioka's latest patents include a diesel engine system that features a uniquely designed piston. This piston has a cavity dented downwardly in its crown surface, with a peripheral part that is convex radially outward. The design also includes a lip part that protrudes inwardly. The injection controller in this system allows for a main injection of fuel directed to the lip part, followed by an after-injection of a smaller amount of fuel at a specific timing during the engine's expansion stroke. Additionally, he has developed a method and device for controlling fuel injection in diesel engines. This method enables multiple fuel injections to occur within one combustion cycle, optimizing combustion efficiency.

Career Highlights

Fujioka is currently employed at Mazda Motor Corporation, where he continues to innovate in the automotive industry. His work focuses on enhancing diesel engine performance and efficiency through advanced fuel injection techniques.

Collaborations

Throughout his career, Fujioka has collaborated with notable colleagues, including Takeshi Matsubara and Naotoshi Shirahashi. These collaborations have contributed to the development of cutting-edge technologies in diesel engine systems.

Conclusion

Tetsuya Fujioka's contributions to diesel engine technology reflect his dedication to innovation and efficiency. His patents demonstrate a commitment to advancing automotive engineering, making him a key figure in the industry.

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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