Takabumi Fumoto

Title: Takabumi Fumoto: Innovator in Magnetic and Film Measurement Technologies

Introduction

Takabumi Fumoto is a notable inventor based in Kawasaki, Japan. He holds a total of 3 patents that showcase his contributions to the fields of magnetic technology and film measurement.

Latest Patents

One of his latest inventions is a thin film magnetic head. This device includes an upper magnetic core film and a lower magnetic core film laminated one on another through a magnetic gap layer. The upper and lower magnetic core films are multilayer thin films, each composed of a plurality of magnetic thin film layers and a plurality of non-magnetic thin film layers, alternately laminated. The magnetic core films have single domain structures, which allow for high permeability at high frequencies and improved high-frequency characteristics, ultimately achieving high recording density.

Another significant invention is the infrared film thickness gage. This device is designed for continuous on-line thickness measurement of a plastic film produced by a film blowing process into a tube shape. It features an infrared source with generally uniform directional radiation characteristics, positioned concentrically inside the film tube. A photodetector is located outside the film tube to receive infrared rays of different reference and measurement wavelengths after they pass through the tube. By utilizing an infrared source with uniform directional characteristics and a filter to eliminate background light, measurement errors are substantially reduced.

Career Highlights

Fumoto has worked with prominent companies such as Fuji Electric Co., Ltd. and Fuji Electric Corporate Research and Development Ltd. His experience in these organizations has contributed to his expertise in developing innovative technologies.

Collaborations

Throughout his career, Takabumi Fumoto has collaborated with notable individuals, including Mutsuo Sawaguchi and Keiji Okubo. These collaborations have likely enriched his work and led to advancements in his inventions.

Conclusion

Takabumi Fumoto is a distinguished inventor whose work in magnetic technology and film measurement has made a significant impact. His innovative patents reflect his dedication to advancing technology in these fields.