Hidehiro Tomioka

Title: Innovations of Hidehiro Tomioka

Introduction

Hidehiro Tomioka is a notable inventor based in Ayabe, Japan. He is recognized for his contributions to the field of proximity switches, particularly through his innovative designs that enhance detection capabilities.

Latest Patents

Tomioka holds a patent for a high frequency oscillation type proximity switch. This invention features an oscillation circuit with a first resonant frequency and a tank circuit that includes an LC resonant circuit. The second resonant frequency of the tank circuit is slightly different from the first. The design incorporates a comparator circuit that discriminates the amplitude of the oscillation output at a predetermined threshold level. This allows for the detection of nonmagnetic metallic objects when they come close to a coil in the LC resonant circuit, as the oscillation changes due to variations in the coil's susceptance.

Career Highlights

Tomioka is currently employed at Omron Corporation, where he continues to develop innovative technologies. His work has significantly impacted the field of proximity sensing, making it possible to detect both magnetic and nonmagnetic objects by selecting appropriate resonant frequencies and threshold levels.

Collaborations

Throughout his career, Tomioka has collaborated with esteemed colleagues such as Masakatsu Hosoya and Kenji Ueda. Their combined expertise has contributed to advancements in sensor technology.

Conclusion

Hidehiro Tomioka's innovative work in proximity switches exemplifies the importance of creativity in technology. His patent demonstrates a significant advancement in detection methods, showcasing his role as a leading inventor in the field.