Kasugai, Japan

Naomichi Miyashita

This inventor holds 15 USPTO granted patents and 1 published patent application and 10 EPO patents, primarily in Spark Plug Technology. Top assignees: Ngk Spark Plug Company, Limited, Ngk Spark Plug., Ltd.. Active years: 2002-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Naomichi Miyashita. Retrieved from https://idiyas.com/inventor/naomichi-miyashita

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

Calculating rank
USPTO Granted Patents = 15 

% Patents Active = 86.7

 

Average Co-Inventor Count = 3.3

ph-index = 4

Forward Citations = 47(Granted Patents)


Location History:

  • Nagoya, JP (2002)
  • Aichi, JP (2004 - 2015)
  • Kasugai, JP (2011 - 2015)

Company Filing History:


Years Active: 2002-2015

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Areas of Expertise:
Spark Plug
Electrode Design
Corrosion Resistance
Welding Techniques
Automotive Components
Nickel Alloy
Internal Combustion Engine
Gasket Design
Alloy Composition
Manufacturing Process
Assembly Structure
Ground Electrode
15 patents (USPTO):Explore Patents

Title: Naomichi Miyashita: Innovator in Spark Plug Technology

Introduction

Naomichi Miyashita is a prominent inventor based in Kasugai, Japan. He has made significant contributions to the field of automotive components, particularly in spark plug technology. With a total of 15 patents to his name, Miyashita has established himself as a key figure in innovation within the automotive industry.

Latest Patents

Miyashita's latest patents include a spark plug and assembling structure that features a metallic shell extending along an axis and a solid annular gasket. The design incorporates an externally threaded portion and a seat portion, with the gasket positioned between these two elements. Notably, the forward end surface of the gasket has an inclined portion that slopes rearward from the outer side to the inner side. The gasket's thickness is limited to 2.0 mm or less, and the distance between the outermost and innermost circumferential edges of the inclined portion ranges from 0.02 mm to 0.12 mm. Additionally, the Vickers hardness of the gasket is 60 Hv or more. Another patent focuses on a gasket designed for use around a thread neck of an automotive component, ensuring that it remains securely in place and prevents any male screw portion from damaging the gasket.

Career Highlights

Throughout his career, Naomichi Miyashita has worked with notable companies in the automotive sector, including NGK Spark Plug Company, Limited and NGK Spark Plug, Ltd. His expertise in spark plug technology has been instrumental in advancing the performance and reliability of automotive components.

Collaborations

Miyashita has collaborated with several talented individuals in his field, including Mamoru Musasa and Kazuyoshi Torii. These partnerships have contributed to the development of innovative solutions in automotive technology.

Conclusion

Naomichi Miyashita's contributions to spark plug technology and automotive components have made a lasting impact on the industry. His innovative designs and patents continue to influence the development of reliable automotive solutions.

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]
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