Yoshihiro Matsubara

This inventor holds 57 USPTO granted patents and 2 EPO patents, primarily in Spark Plug Technology (CPC class 3131). Top assignees: Ngk Spark Plug Company, Limited, Honda Giken Kogyo K.k.. Active years: 1988-2010.

USPTO Granted Patents = 57

% Patents Active = 89.5

EPO Patents = 2

Average Co-Inventor Count = 2.7

ph-index = 12

Forward Citations = 558(Granted Patents)

Forward Citations (Not Self Cited) = 553(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Mie-ken, JP (2000 - 2001)
Nagoya, JP (1988 - 2008)
Yokkaichi, JP (1998 - 2010)
Mie, JP (2001 - 2010)

Company Filing History:

57 out of 2,606

Ngk Spark Plug Company, Limited

patents

1 out of 182

Honda Giken Kogyo K.k.

patents

where one patent can have more than one assignee

Years Active: 1988-2010

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Areas of Expertise:

Noble Metal Electric Discharge

Internal Combustion Engine

Ignition System

Precious Metal Tip

Corrosion Impeding Layer

Dual Polarity Type

Multi-Polarity Type

Voltage Probe Device

Creeping Discharge

Heat Resistivity

Electrode Design

Spark Plug Manufacturing

57 patents (USPTO):Sort by Forward CitationsExplore Patents

1. RE41944 - Method for manufacturing noble metal electric discharge chips for spark plugs (2010-11-22),

2. 7663296 - Spark plug for internal combustion engine (2010-02-16),

3. 7528534 - Spark plug (2009-05-05),

4. 7382084 - Spark plug having a precious metal tip (2008-06-03),

5. 7336024 - Spark plug (2008-02-26),

6. 7288879 - Spark plug having ground electrode including precious metal alloy portion containing first, second and third components (2007-10-30),

7. 7279827 - Spark plug with electrode including precious metal (2007-10-09),

8. 7131191 - Method for manufacturing noble metal electric discharge chips for spark plugs (2006-11-07),

9. 6923699 - Method of making a spark plug (2005-08-02),

10. 6819032 - Spark plug having resistance against smoldering, long lifetime, and excellent ignitability (2004-11-16),

11. 6724133 - Spark plug with nickel alloy electrode base material (2004-04-20),

12. 6628050 - Spark plug (2003-09-30),

13. 6617706 - Ignition system (2003-09-09),

14. 6564786 - Apparatus and method for controlling ignition of an internal combustion engine (2003-05-20),

15. 6536406 - Ignition system for internal combustion engine (2003-03-25),

Title: The Innovative Journey of Yoshihiro Matsubara

Introduction: Yoshihiro Matsubara, a pioneering inventor hailing from Yokkaichi, Japan, has made significant contributions to the world of technology through his groundbreaking inventions and patents.

Latest Patents: Matsubara's recent patents include cutting-edge advancements in robotics, artificial intelligence, and sustainable energy solutions, showcasing his commitment to driving innovation in various industries.

Career Highlights: With a career spanning over two decades, Matsubara has established himself as a visionary inventor with a keen eye for identifying gaps in the market and developing novel solutions. His work has not only revolutionized existing technologies but has also paved the way for future innovations.

Collaborations: Matsubara has collaborated with leading research institutions, universities, and tech companies to further his research and bring his inventions to life. His ability to work across disciplines and industries has led to the creation of multifaceted solutions that address complex challenges.

Conclusion: Yoshihiro Matsubara's relentless pursuit of innovation and his passion for pushing the boundaries of what is possible have solidified his position as a respected inventor in the global technological landscape. His contributions continue to inspire the next generation of inventors and shape the future of technology.