Norihiro Kawagishi

Title: Norihiro Kawagishi: Innovator in Current Sensing Technology

Introduction

Norihiro Kawagishi is a prominent inventor based in Hamamatsu, Japan. He has made significant contributions to the field of current sensing technology, holding a total of 4 patents. His work is characterized by innovative designs that enhance the accuracy and efficiency of current measurement devices.

Latest Patents

Kawagishi's latest patents include a current sensor and a current measuring device. The current sensor features an element substrate with a first surface facing a wire supplying electric current and a second surface on the opposite side. It incorporates a pair of sloping surfaces that are juxtaposed in the element substrate, designed to have slope angles that decrease in mutual spacing in a direction orthogonal to the first surface. Additionally, it includes magnetism detecting elements attached to the sloping surfaces and external connection terminals linked to these elements.

Another notable patent is the current detection circuit and magnetic detection device. This circuit consists of a coil made from metal wiring on a semiconductor substrate, along with a resistor positioned near the coil. The resistor is designed to prevent any magnetic field from being generated due to the current flowing through it. The output circuit is capable of outputting currents based on the resistance ratio between the coil and the resistor, while the detection circuit monitors the current flowing in the resistor to determine the current in the coil.

Career Highlights

Kawagishi is currently employed at Yamaha Corporation, where he continues to develop innovative technologies. His work has significantly impacted the field of electronics, particularly in enhancing the performance of current sensors and measuring devices.

Collaborations

Throughout his career, Kawagishi has collaborated with notable colleagues, including Katsuya Hirano and Yasuhiko Sekimoto. These collaborations have fostered a creative environment that has led to the development of advanced technologies in their respective fields.

Conclusion

Norihiro Kawagishi is a distinguished inventor whose contributions to current sensing technology have paved the way for advancements in electronic measurement devices. His innovative patents and collaborations reflect his commitment to excellence in engineering and technology.