Yasuo Nakajima

This inventor holds 54 USPTO granted patents, primarily in Internal Combustion Engines (CPC class 1231). Top assignee: Nissan Motor Company Limited. Active years: 1976-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuo Nakajima. Retrieved from https://idiyas.com/inventor/yasuo-nakajima-5cto3wh5

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

Calculating rank

USPTO Granted Patents = 54

% Patents Active = 100.0

Average Co-Inventor Count = 2.7

ph-index = 14

Forward Citations = 593(Granted Patents)

Forward Citations (Not Self Cited) = 587(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Yokosuka, JA (1976 - 1978)
Yukosuka, JP (1984)
Yokosuka, JP (1978 - 1988)

Company Filing History:

54 out of 13,420

Nissan Motor Company Limited

patents

Years Active: 1976-1988

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Areas of Expertise:

Engine Combustion Control

Swirl Control Arrangement

Exhaust Particle Removing

Fuel Supply System

Piston Ring Assembly

Spark Ignition

EGR Control System

Variable Valve Timing

Emission Control Systems

Multi-Cylinder Engine

Knocking Discrimination

Electronic Controlled Carburetor

54 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4753200 - Engine combustion control system (1988-06-28),

2. 4651693 - Swirl control arrangement for internal combustion engine (1987-03-24),

3. 4610138 - Exhaust particle removing system for an internal combustion engine (1986-09-09),

4. 4545333 - System for controlling coolant temperature of internal combustion engine (1985-10-08),

5. 4497300 - Fuel supply system for an internal combustion engine (1985-02-05),

6. 4495930 - Fuel control system (1985-01-29),

7. 4475739 - Piston ring assembly for automotive internal combustion engine (1984-10-09),

8. 4459804 - Multiple spark ignition internal combustion engine with exhaust gas (1984-07-17),

9. 4385598 - Engine system (1983-05-31),

10. 4380984 - Electronic controlled carburetor (1983-04-26),

11. 4350129 - Spark-ignition internal combustion engine capable of preventing noxious (1982-09-21),

12. 4333334 - Knocking discrimination apparatus (1982-06-08),

13. 4329955 - Combustion chamber of an internal combustion engine (1982-05-18),

14. 4314534 - Feedback control system for internal combustion engine (1982-02-09),

15. 4240253 - Engine system for motor vehicle (1980-12-23),

Title: **Yasuo Nakajima: A Pioneer in Engine Combustion Technology**

Introduction

Yasuo Nakajima, based in Yokosuka, Japan, is an innovative inventor renowned for his contributions to the automotive industry. With an impressive portfolio of 54 patents, Nakajima has dedicated his career to enhancing engine performance through advanced combustion systems.

Latest Patents

Among his latest patents, Nakajima has developed an "Engine combustion control system" that optimizes air flow swirling into the engine. This adjustable degree of swirl significantly influences the combustion duration of the air-fuel mixture, allowing for improved efficiency depending on varying engine operating conditions. Additionally, his "Swirl control arrangement for internal combustion engine" utilizes a separate valve to manage swirl independently from the throttle valve. This innovation enables accurate engine operation while achieving nearly optimal swirl rates by modifying operating parameters based on real-time conditions.

Career Highlights

Although Yasuo Nakajima's specific career milestones are not detailed, his long-standing association with Nissan Motor Company Limited indicates a strong commitment to automotive innovation. His numerous patents speak to his expertise and intention to improve engine efficiency and performance continually.

Collaborations

Throughout his career, Nakajima has collaborated with notable colleagues, including Yoshimasa Hayashi and Kunihiko Sugihara. Their teamwork has likely contributed to groundbreaking advancements in engine technology and performance optimization.

Conclusion

Yasuo Nakajima's inventive spirit and dedication to engine combustion technology have established him as a key figure in the automotive industry. His work at Nissan Motor Company Limited and his substantial patent portfolio continue to pave the way for future innovations in engine design and efficiency.

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]