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For the Inventor, By the Inventor

Sayama, Japan

Yoshiaki Hironaka

This inventor holds 15 USPTO granted patents. Top assignees: Kioritz Corporation, Other. Active years: 1987-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiaki Hironaka. Retrieved from https://idiyas.com/inventor/yoshiaki-hironaka

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

USPTO Granted Patents = 15

% Patents Active = 66.7

Average Co-Inventor Count = 2.4

ph-index = 7

Forward Citations = 125(Granted Patents)


Location History:

  • Yokohama, JP (1987)
  • Sayama, JP (1990 - 2003)
  • Saitama, JP (1999 - 2004)

Company Filing History:

goldMedal12 out of 435 
 
Kioritz Corporation
 patents
silverMedal3 out of 834,570 
Other
 patents

Years Active: 1987-2004

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15 patents (USPTO):Explore Patents
1. 6802284 - Fuel injection device and air-fuel mixture generating device provided with fuel injection device (2004-10-12),
2. 6742994 - Reciprocating pump with malfunction detecting apparatus (2004-06-01),
3. 6574085 - Power supply apparatus for electrostatic charging and method for same (2003-06-03),
4. 6517330 - Reciprocating pump (2003-02-11),
5. 6374782 - Air-fuel mixture generating device (2002-04-23),
6. 6354522 - Electrostatic sprayer (2002-03-12),
7. 5901687 - Cassette-type fuel tank and working machine provided with the same (1999-05-11),
8. 5211140 - Decompressor for internal combustion engine (1993-05-18),
9. 5116287 - Decompressor for internal combustion engine (1992-05-26),
10. 5110468 - Fresh water generator (1992-05-05),
11. 5063890 - 2-cycle internal combustion engine (1991-11-12),
12. 4953526 - Portable work machine (1990-09-04),
13. 4944711 - Extendable/retractable operational sleeve (1990-07-31),
14. 4932364 - Internal combustion engine (1990-06-12),
15. 4714447 - Power train of mowing machine (1987-12-22),

Title: Yoshiaki Hironaka: A Pioneer in Fuel Injection Technology

Introduction

Yoshiaki Hironaka, an influential inventor located in Sayama, Japan, has made significant contributions to the field of fuel technology through his innovative designs and patents. With a remarkable portfolio of 15 patents, he has continuously advanced the mechanics of fuel injection and fluid management systems in internal combustion engines.

Latest Patents

Hironaka's most recent patents exemplify his expertise and technical ingenuity. One notable invention is the "Fuel injection device and air-fuel mixture generating device provided with fuel injection device." This device features an electromagnetic driving-type fuel injection valve that injects fuel into the air-intake passageway of an internal combustion engine at precise intervals. Additionally, it includes a collision plate that enhances the efficiency of fuel-air mixing.

Another vital invention is the "Reciprocating pump with malfunction detecting apparatus." This innovative pump is designed to identify anomalies in fluid transfer, such as oil exhaustion or blockages, using a simple yet effective detection mechanism. It leverages a piezoelectric element to monitor pressure fluctuations, ensuring reliable operation while minimizing noise from external vibrations.

Career Highlights

Throughout his career, Hironaka has been associated with notable companies such as Kioritz Corporation, where he honed his skills in engineering and innovation. His work has not only contributed to the technological landscape but has also paved the way for future developments in fuel injection systems.

Collaborations

Hironaka has collaborated with esteemed individuals in the field, including Kiyoshige Enomoto and Yoshikiyo Kamata. Their joint efforts have fostered a dynamic environment for creativity and invention, leading to significant advancements in the industry.

Conclusion

Yoshiaki Hironaka's dedication to innovation in fuel technology is evident through his numerous patents and collaborations. His inventions exemplify the intersection of creativity and engineering, contributing to safer and more efficient internal combustion engines. As he continues to push the boundaries of technology, Hironaka remains a pivotal figure in the realm of modern engineering.

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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