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For the Inventor, By the Inventor

Chita, Japan

Yasuo Hirata

This inventor holds 15 USPTO granted patents and 3 published patent applications. Top assignee: Denso Corporation. Active years: 2002-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuo Hirata. Retrieved from https://idiyas.com/inventor/yasuo-hirata-ycfaz2w2

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 = 46.7

Average Co-Inventor Count = 1.5

ph-index = 4

Forward Citations = 57(Granted Patents)


Location History:

  • Obu, JP (2002)
  • Oobu, JP (2005)
  • Chita-gun, JP (2005 - 2015)
  • Kariya, JP (2018 - 2019)

Company Filing History:

goldMedal15 out of 20,436 
 
Denso Corporation
 patents

Years Active: 2002-2019

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15 patents (USPTO):Explore Patents
1. 10519894 - Control device for internal combustion engine (2019-12-31),
2. 10273885 - High-pressure pump control device for internal-combustion engine (2019-04-30),
3. 10161342 - Control device for high-pressure pump (2018-12-25),
4. 9121310 - Control system for variable valve timing apparatus (2015-09-01),
5. 9002618 - Variable valve timing control apparatus for engine (2015-04-07),
6. 8437944 - Fuel injection device of internal combustion engine (2013-05-07),
7. 7810468 - Controller and control system for internal combustion engine (2010-10-12),
8. 7801666 - Air-fuel ratio detection apparatus of internal combustion engine (2010-09-21),
9. 7630824 - Fuel estimating device (2009-12-08),
10. 7513233 - Variable valve timing controller for internal combustion engine (2009-04-07),
11. 7356985 - Air-fuel ratio controller for internal combustion engine (2008-04-15),
12. 6928968 - Variable valve timing controller for internal combustion engine (2005-08-16),
13. 6877468 - System for controlling valve timing in event of failure (2005-04-12),
14. 6470854 - Air-fuel ratio control with improved fuel supply operation immediately after complete combustion of mixture (2002-10-29),
15. 6367455 - Fuel supply amount controller for internal combustion engine (2002-04-09),

Title: Yasuo Hirata: Innovator in Internal Combustion Engine Technology

Introduction

Yasuo Hirata is a prominent inventor based in Chita, Japan. He has made significant contributions to the field of internal combustion engine technology, holding a total of 15 patents. His innovative work focuses on enhancing the efficiency and performance of internal combustion engines.

Latest Patents

Hirata's latest patents include a control device for internal combustion engines. This device is designed to manage a high-pressure fuel pump that discharges fuel from a pressurizing chamber. It features an accumulator that stores high-pressure fuel and a relief valve that returns excess fuel to a lower pressure chamber. The device increases the idle speed of the engine when the fuel pressure in the accumulator exceeds a specified determination pressure for a certain duration. Another notable patent is the high-pressure pump control device, which predicts and restricts the discharge quantity of the high-pressure pump to ensure it does not exceed the low-pressure pump's discharge quantity.

Career Highlights

Hirata is currently employed at Denso Corporation, a leading company in automotive technology. His work at Denso has allowed him to develop and refine his innovative ideas, contributing to advancements in engine control systems.

Collaborations

Throughout his career, Hirata has collaborated with notable colleagues, including Kazuki Ichimura and Hidehiko Asama. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies in the automotive sector.

Conclusion

Yasuo Hirata's contributions to internal combustion engine technology exemplify his dedication to innovation. His patents reflect a commitment to improving engine performance and efficiency, making him a key figure in the automotive 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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