Odawara, Japan

Hirokazu Hirosawa

This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignees: Mikuni Corporation, Mikumi Corporation. Active years: 2004-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirokazu Hirosawa. Retrieved from https://idiyas.com/inventor/hirokazu-hirosawa

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

Calculating rank
USPTO Granted Patents = 3 

Average Co-Inventor Count = 2.5

ph-index = 2

Forward Citations = 17(Granted Patents)


Company Filing History:


Years Active: 2004-2007

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3 patents (USPTO):Explore Patents

Title: Hirokazu Hirosawa: Innovator in Fuel Injection Technology

Introduction

Hirokazu Hirosawa is a notable inventor based in Odawara, Japan. He has made significant contributions to the field of fuel injection technology, holding a total of 3 patents. His innovative approaches have led to advancements in the efficiency and effectiveness of fuel injection systems.

Latest Patents

One of Hirosawa's latest patents is a fuel injection method designed to correct the fuel injection amount accurately. This method eliminates offset components when detecting the current flowing through a solenoid for fuel injection. The process involves inputting a current component to an A/D converter, storing its value, and subsequently detecting the input voltage to calculate a difference current. This innovative approach allows for precise adjustments in the drive pulse width provided to the solenoid.

Another significant patent is related to a solenoid drive apparatus. This device utilizes energy stored in a capacitor for re-driving the solenoid while suppressing heat generation in the current back-flow preventing circuit. The design ensures that electric power accumulated in the solenoid is efficiently managed, enhancing the overall performance of the solenoid driving device.

Career Highlights

Hirokazu Hirosawa has worked with prominent companies, including Mikuni Corporation. His experience in these organizations has allowed him to refine his skills and contribute to the development of advanced technologies in fuel injection systems.

Collaborations

Throughout his career, Hirosawa has collaborated with notable individuals such as Shigeru Yamazaki and Takanao Tanzawa. These collaborations have fostered an environment of innovation and creativity, leading to the development of cutting-edge technologies.

Conclusion

Hirokazu Hirosawa's contributions to fuel injection technology exemplify his dedication to innovation. His patents reflect a commitment to improving efficiency and performance in automotive systems. His work continues to influence the industry and inspire future advancements.

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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