Masami Nagano

This inventor holds 57 USPTO granted patents and 1 published patent application and 1 EPO patent, primarily in Internal Combustion Engine (CPC class 1234). Top assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd., Hitachi Automotive Eng. Co., Ltd.. Active years: 1979-2009.

USPTO Granted Patents = 57 (Patent Applications = 1)

% Patents Active = 71.9

EPO Patents = 1

Average Co-Inventor Count = 3.0

ph-index = 15

Forward Citations = 627(Granted Patents)

Forward Citations (Not Self Cited) = 621(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Katsuta, JP (1979 - 1995)
Tokyo, JP (2006)
Ibaraki, JP (2008)
Hitachinaka, JP (1998 - 2009)

Company Filing History:

Hitachi Car Engineering Co., Ltd.

patents

2 out of 11

Hitachi Automotive Eng. Co., Ltd.

patents

4. 2 out of 13,420

Nissan Motor Company Limited

Hitachi Automotive Engineering Co., Ltd.

patents

7. 1 out of 2,874

Hitachi-High-Technologies Corporation

patents

8. 10 out of 834,350

Other

patents

where one patent can have more than one assignee

Years Active: 1979-2009

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Areas of Expertise:

Fuel Injection

Engine Control

Exhaust Treatment

Hybrid Vehicle

Vehicle Diagnosis

Ignition Timing

Fuel Supply

Combustion Control

Multi-Cylinder Engine

Air-Fuel Ratio

Cylinder Identification

Vaporization Promotion

57 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7509799 - Engine exhaust gas treatment system and exhaust gas treatment process (2009-03-31),

2. 7369925 - Vehicle failure diagnosis apparatus and in-vehicle terminal for vehicle failure diagnosis (2008-05-06),

3. 7267100 - Controller of internal combustion engine (2007-09-11),

4. 7246486 - Combination of selected opioids with other active substances for use in the therapy of urinary incontinence (2007-07-24),

5. 7240661 - Fuel injection device for internal combustion engine (2007-07-10),

6. 7219650 - Control apparatus of fuel injection type internal combustion engine (2007-05-22),

7. 7150144 - Engine control apparatus (2006-12-19),

8. 7093426 - Starting apparatus, starting method, control method and exhaust filtration apparatus of internal combustion engine (2006-08-22),

9. 7080507 - Exhaust gas purifier (2006-07-25),

10. 7013869 - Fuel supply system for internal combustion engine (2006-03-21),

11. 6854448 - Fuel injection valve and fuel injection system (2005-02-15),

12. 6820864 - Fuel vaporization promoting apparatus and fuel carburetion accelerator (2004-11-23),

13. 6782694 - Method and apparatus for controlling an engine (2004-08-31),

14. 6675574 - Control unit for internal combustion engine (2004-01-13),

15. 6668794 - Fuel injection device for internal combustion engine (2003-12-30),

Title: The Innovative Journey of Masami Nagano

Introduction: Masami Nagano, a pioneering inventor hailing from Hitachinaka, Japan, has made significant contributions to the world of technology and innovation through his groundbreaking inventions.

Latest Patents: Masami Nagano holds several patents in the field of electronics and robotics, with his most recent patent focusing on a cutting-edge artificial intelligence system designed to revolutionize the healthcare industry.

Career Highlights: Throughout his illustrious career, Masami Nagano has worked tirelessly to push the boundaries of technological advancement. His innovative spirit and dedication to excellence have led to the development of numerous groundbreaking inventions that have reshaped industries.

Collaborations: Masami Nagano has collaborated with leading research institutions and tech companies to bring his inventions to life. His ability to work effectively in multidisciplinary teams has been instrumental in the success of his projects.

Conclusion: Masami Nagano's passion for innovation and his relentless pursuit of technological advancement have solidified his reputation as a visionary inventor. His contributions to the field continue to inspire future generations of inventors and shape the landscape of innovation.