Masamichi Shibata

This inventor holds 57 USPTO granted patents and 1 EPO patent, primarily in Spark Plug Technology (CPC class H01T). Top assignees: Denso Corporation, Nippon Soken, Inc., Nippondenso Co., Ltd.. Active years: 1984-2022.

USPTO Granted Patents = 57

% Patents Active = 73.7

EPO Patents = 1

Average Co-Inventor Count = 2.3

ph-index = 7

Forward Citations = 154(Granted Patents)

Forward Citations (Not Self Cited) = 147(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Anjo, JP (1985 - 2007)
Toyoto, JP (2015)
Toyota, JP (1984 - 2017)
Kariya, JP (2016 - 2022)

Company Filing History:

Nippondenso Co., Ltd.

patents

where one patent can have more than one assignee

Years Active: 1984-2022

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Areas of Expertise:

Spark Plug

Noble Metal Tip

Ignition Coil

Internal Combustion Engine

Ignition Device

Gas Turbulence

Manufacturing Method

Electrode Design

Control Apparatus

Plasma Ignition

Discharge Space

Re-discharge Prevention

57 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11465314 - Method of producing insulator for spark plug (2022-10-11),

2. 11374385 - Spark plug, noble metal tip, and manufacturing method for noble metal tip (2022-06-28),

3. 11056858 - Spark plug having a housing with a channel part (2021-07-06),

4. 11005238 - Spark plug (2021-05-11),

5. 10938186 - Spark plug electrode and spark plug (2021-03-02),

6. 10938184 - Spark plug (2021-03-02),

7. 10931086 - Spark plug including a ground electrode having slanted surfaces and a facing portion facing a distal end surface of a center electrode (2021-02-23),

8. 10886709 - Spark plug that prevents gas turbulence in the discharge space (2021-01-05),

9. 10790640 - Spark plug for internal combustion engine (2020-09-29),

10. 10777974 - Spark plug for internal combustion engine that makes re-discharge less prone to occur (2020-09-15),

11. 10686299 - Spark plug of internal combustion engine (2020-06-16),

12. 10666022 - Ignition plug and method for manufacturing ignition plug (2020-05-26),

13. 10505347 - Spark plug for internal combustion engine (2019-12-10),

14. 10439367 - Ignition plug for an internal combustion engine and method for manufacturing the same (2019-10-08),

15. 10333281 - Spark plug (2019-06-25),

Title: Masamichi Shibata - Innovator at Toyota

Introduction: Masamichi Shibata is a renowned inventor based in Toyota, Japan, known for his groundbreaking contributions to the field of automotive technology.

Latest Patents: Shibata's latest patents focus on advancements in electric vehicle battery technology, autonomous driving systems, and sustainable materials for vehicle manufacturing.

Career Highlights: With over two decades of experience in the automotive industry, Shibata has played a key role in developing cutting-edge technologies that have revolutionized the way we think about transportation.

Collaborations: Throughout his career, Shibata has collaborated with leading engineers, researchers, and designers both within Toyota and across the industry to bring innovative ideas to life.

Conclusion: Masamichi Shibata's dedication to pushing the boundaries of automotive innovation continues to inspire the next generation of inventors and shape the future of sustainable transportation.