Okazaki, Japan

Tohru Yoshinaga

This inventor holds 31 USPTO granted patents and 2 EPO patents, primarily in Ignition Systems. Top assignees: Nippon Soken, Inc., Denso Corporation, Toyota Jidosha Kabushiki Kaisha. Active years: 1996-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tohru Yoshinaga. Retrieved from https://idiyas.com/inventor/tohru-yoshinaga

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

Calculating rank

% Patents Active = 90.3

 

Average Co-Inventor Count = 4.6

ph-index = 11

Forward Citations = 331(Granted Patents)


Company Filing History:


Years Active: 1996-2011

Loading Chart...
Loading Chart...
Areas of Expertise:
Plasma Ignition
Spark Plug
Internal Combustion Engine
Combustion Monitoring
Exhaust Gas Purification
Catalytic Converter
Fuel Supply System
Emission Control
Gas Ventilation
Activated Charcoal Canister
Ion Current Detection
Electrical Heating
31 patents (USPTO):Explore Patents

Title: Tohru Yoshinaga: Innovator in Plasma Ignition Systems

Introduction

Tohru Yoshinaga is a distinguished inventor based in Okazaki, Japan, known for his significant contributions to the field of plasma ignition systems. With a total of 31 patents to his name, Yoshinaga has made remarkable advancements that have improved engine performance and efficiency.

Latest Patents

Two of his latest patents focus on innovative plasma ignition technologies. The first patent describes a plasma ignition system that features an ignition plug with a center electrode, ground electrode, and a discharge space. This system utilizes a discharge power source circuit and a plasma generation power source circuit to ignite a fuel/air mixture by converting gas in the discharge space into a plasma state. The unique arrangement of a resistance element and a rectifying device enhances the system's functionality.

His second recent patent also details a plasma ignition system that includes an ignition plug with a center electrode and a ground electrode, alongside a high-voltage supply. This system includes a recess portion on the center electrode that aids in efficiently injecting gas into the engine, showcasing Yoshinaga's innovative approach to engine technology.

Career Highlights

Tohru Yoshinaga has built his career through valuable experiences at prominent companies such as Nippon Soken, Inc. and Denso Corporation. His tenure at these organizations has allowed him to develop and refine his ideas, leading to numerous groundbreaking patents in plasma ignition technology.

Collaborations

Throughout his career, Yoshinaga has had the privilege of collaborating with esteemed colleagues, including Tokio Kohama and Kiyohiko Watanabe. These collaborations have fostered a creative environment, enabling them to pool their expertise to drive innovation in their respective fields.

Conclusion

Tohru Yoshinaga's work in plasma ignition systems exemplifies the power of innovation in enhancing automotive technology. With a solid foundation of patents and a dedication to research and development, he continues to influence the industry significantly. His contributions not only demonstrate his prowess as an inventor but also inspire future advancements in engine technology.

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]
Loading…