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For the Inventor, By the Inventor

Kariya, Japan

Hideya Fujisawa

This inventor holds 14 USPTO granted patents, primarily in Internal Combustion Engine. Top assignees: Nippondenso Co., Ltd., Nippon Soken, Inc., Toyota Jidosha Kogyo Kabushiki Kaisha. Active years: 1977-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hideya Fujisawa. Retrieved from https://idiyas.com/inventor/hideya-fujisawa

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

Calculating rank
USPTO Granted Patents = 14

% Patents Active = 100.0

Average Co-Inventor Count = 4.3

ph-index = 9

Forward Citations = 275(Granted Patents)


Location History:

  • Kariya, JA (1977)
  • Kariya, JP (1980 - 1988)

Company Filing History:

goldMedal14 out of 3,252 
 
Nippondenso Co., Ltd.
 patents
silverMedal5 out of 1,600 
 
Nippon Soken, Inc.
 patents
bronzeMedal1 out of 1,838 
 
Toyota Jidosha Kogyo Kabushiki Kaisha
 patents
where one patent can have more than one assignee

Years Active: 1977-1988

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Areas of Expertise:
Fuel Injection
Engine Control
Air Intake
Ignition Timing
Idle Speed
Combustion Engine
Fuel Ratio
Timing Control
Control Device
System
Apparatus
14 patents (USPTO):Explore Patents
1. 4784101 - Fuel injection control device (1988-11-15),
2. 4777921 - Fuel injection system (1988-10-18),
3. 4713765 - Control system for an engine having an air intake passage (1987-12-15),
4. 4656990 - Method and apparatus for controlling fuel injection timing (1987-04-14),
5. 4566419 - Apparatus and method for controlling air-to-fuel ratio for an internal (1986-01-28),
6. 4446832 - Method and system for controlling the idle speed of an internal (1984-05-08),
7. 4268910 - Method for controlling timing of spark ignition for an internal (1981-05-19),
8. 4259723 - Method for controlling operations of a combustion engine (1981-03-31),
9. 4245602 - Ignition timing control method for internal combustion engine (1981-01-20),
10. 4243008 - Method for controlling ignition timing of internal combustion engine (1981-01-06),
11. 4240388 - Method for controlling timing of spark ignition for an internal (1980-12-23),
12. 4237838 - Engine air intake control system (1980-12-09),
13. 4233944 - Method for controlling ignition timing of internal combustion engine (1980-11-18),
14. 4043307 - Fuel injection system for an internal combustion engine (1977-08-23),

Title: The Innovative Journey of Hideya Fujisawa

Introduction: Hideya Fujisawa, a pioneering inventor hailing from Kariya, Japan, has made significant contributions to the world of technology through his groundbreaking innovations.

Latest Patents: Hideya Fujisawa's latest patents focus on advancements in automotive technology, particularly in the development of electric vehicle charging systems and autonomous driving solutions.

Career Highlights: With a career spanning over two decades, Hideya Fujisawa has worked tirelessly to push the boundaries of technological innovation. His work has been instrumental in shaping the future of transportation and sustainable energy.

Collaborations: Throughout his career, Hideya Fujisawa has collaborated with leading automotive companies and research institutions to bring his inventions to life. His ability to work across disciplines has led to the successful implementation of cutting-edge technologies.

Conclusion: Hideya Fujisawa's passion for innovation and commitment to excellence have solidified his reputation as a visionary inventor in the field of automotive technology. His contributions continue to inspire future generations of inventors to push the boundaries of what is possible.

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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