Iwata, Japan

Masato Nishigaki

This inventor holds 9 USPTO granted patents, plus 1 CIPO patent and 11 EPO patents. Top assignees: Yamaha Hatsudoki Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha. Active years: 1997-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masato Nishigaki. Retrieved from https://idiyas.com/inventor/masato-nishigaki

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


% Patents Active = 88.9


 

Average Co-Inventor Count = 2.3

ph-index = 6

Forward Citations = 79(Granted Patents)


Location History:

  • Shizuoka, JP (2005)
  • Iwata, JP (1997 - 2007)

Company Filing History:


Years Active: 1997-2007

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9 patents (USPTO):Explore Patents

Title: Masato Nishigaki: Innovator in Internal Combustion Engine Technology

Introduction

Masato Nishigaki is a prominent inventor based in Iwata, Japan. He has made significant contributions to the field of internal combustion engines, holding a total of 9 patents. His innovative work focuses on enhancing fuel injection systems, which are crucial for improving engine performance and efficiency.

Latest Patents

Nishigaki's latest patents include a double system of fuel injection for internal combustion engines. This innovative design features both a direct injection injector and a port fuel injection injector. The system is equipped with a control unit that adjusts the fuel injection distribution ratio between the two injectors. Additionally, it includes a delivery pipe for the direct injection injector, a high-pressure fuel pump, and sensors to monitor fuel pressure and temperature. The control unit can regulate the fuel pressure and temperature to optimize engine performance, particularly when the fuel injection distribution ratio favors the port fuel injection injector.

Another notable patent involves an engine control unit that sets the fuel injection quantity ratio for both injectors. This control unit utilizes ignition timing maps to calculate optimal torque generation timings, ensuring efficient engine operation. The system is designed to enhance performance by calculating correction amounts and adjusting ignition timing accordingly.

Career Highlights

Throughout his career, Masato Nishigaki has worked with renowned companies such as Yamaha Motor Co., Ltd. and Toyota Motor Corporation. His experience in these leading automotive firms has allowed him to develop and refine his innovative ideas in engine technology.

Collaborations

Nishigaki has collaborated with notable colleagues, including Yutaka Iwami and Takashi Hara. Their combined expertise has contributed to advancements in engine design and fuel injection systems.

Conclusion

Masato Nishigaki's contributions to internal combustion engine technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of engine dynamics and a drive to improve performance through advanced fuel injection systems. His work continues to influence the automotive industry and inspire future innovations.

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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