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For the Inventor, By the Inventor

Yokosuka, Japan

Yasuo Nakajima

USPTO Granted Patents = 54

Average Co-Inventor Count = 2.7

ph-index = 14

Forward Citations = 592(Granted Patents)

Forward Citations (Not Self Cited) = 587(Oct 12, 2025)


Inventors with similar research interests:


Location History:

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

Company Filing History:

goldMedal54 out of 13,395 
 
Nissan Motor Company Limited
 patents

Years Active: 1976-1988

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54 patents (USPTO):Explore 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.

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