Akio Katoh

Title: Akio Katoh: Innovator in Spark Plug Technology

Introduction

Akio Katoh is a notable inventor based in Nishio, Japan, recognized for his contributions to spark plug technology. With a total of seven patents to his name, he has made significant advancements in the design and functionality of spark plugs for internal combustion engines.

Latest Patents

One of his latest patents is for a long-life spark plug that utilizes a minimum amount of noble metal. This innovative spark plug is designed to achieve a long service life while reducing discharge voltage. The design features an insulator, a center electrode supported by the insulator, and an earth electrode facing the center electrode. A narrowed portion is arranged at the tip of the electrode material, which includes a projection formed by extending the electrode material and a noble metal chip firmly connected to the terminal end of the projection. The electrode material is a nickel-base heat-resisting alloy, and the noble metal chip is made of a platinum-iridium alloy. The dimensions of the narrowed portion and the noble metal chip are carefully specified to optimize performance.

Another significant patent involves a method of producing a spark plug with an arc-shaped precious metal chip. This method includes a flat area formation process, a tip bonding process, and a plastic machining process. The production technique ensures that the precious metal chips can be accurately arranged opposite the ground electrodes when the center electrode is mounted in a metal housing.

Career Highlights

Throughout his career, Akio Katoh has worked with reputable companies such as Nippondenso Co., Ltd. and Kataken Seiko Co., Ltd. His experience in these organizations has contributed to his expertise in spark plug technology and innovation.

Collaborations

He has collaborated with notable coworkers, including Nobuo Abe and Kozo Takamura, who have also contributed to advancements in the field.

Conclusion

Akio Katoh's innovative work in spark plug technology has led to significant improvements in engine performance and efficiency. His patents reflect a commitment to enhancing the functionality and longevity of spark plugs, making him a key figure in this area of engineering.