Aichi, Japan

Keiichi Hayashi

This inventor holds 1 USPTO granted patent. Top assignees: Honda Giken Kogyo Kabushiki Kaisha, Ngk Spark Plug Company, Limited. Active years: 1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiichi Hayashi. Retrieved from https://idiyas.com/inventor/keiichi-hayashi-tbqimq4t

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 6.0

ph-index = 1

Forward Citations = 18(Granted Patents)


Company Filing History:


Years Active: 1988

Loading Chart...
1 patent (USPTO):Explore Patents

Title: Keiichi Hayashi: Innovator in Air/Fuel Ratio Sensor Technology

Introduction

Keiichi Hayashi is a notable inventor recognized for his contributions to sensor technology, particularly in the automotive industry. He has developed innovative solutions that enhance the efficiency and performance of vehicles. His work has led to the creation of a significant patent that showcases his expertise in this field.

Latest Patents

Hayashi holds a patent for an air/fuel ratio sensor. This sensor features two units of probes, each comprising two sensing elements. Each sensing element has a pair of porous electrodes on opposite sides of an oxygen ion-conductive solid electrolyte. The design includes a gas compartment that is in contact with one porous electrode for each sensing element, allowing communication with the gaseous atmosphere of interest through a gas diffusion limiting portion. Additionally, an internal reference oxygen source is formed in contact with one sensing element on the porous electrode side opposite the gas compartment. This oxygen source communicates with the outside through a leakage resisting portion. The first unit of the probe communicates directly with the gaseous atmosphere via a first gas diffusion limiting portion, while the second unit communicates with the gas in the first unit through a second gas diffusion limiting portion. Hayashi's patent is a testament to his innovative approach to improving air/fuel ratio measurement.

Career Highlights

Throughout his career, Keiichi Hayashi has worked with prominent companies in the automotive sector. He has been associated with NGK Spark Plug Company, Limited and Honda Giken Kogyo Kabushiki Kaisha. His experience in these organizations has contributed to his development as an inventor and has provided him with valuable insights into the industry.

Collaborations

Hayashi has collaborated with notable colleagues, including Toyohei Nakajima and Yasushi Okada. These partnerships have likely fostered an environment of innovation and creativity, leading to advancements in sensor technology.

Conclusion

Keiichi Hayashi's contributions to the field of air/fuel ratio sensors highlight his innovative spirit and dedication to improving automotive technology. His patent and career achievements reflect his significant impact on the industry.

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…