Shinpei Tokunaga

Title: The Innovations of Shinpei Tokunaga

Introduction

Shinpei Tokunaga is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of sensor technology, particularly in the development of eddy current sensors. With a total of 5 patents to his name, Tokunaga continues to push the boundaries of innovation in his field.

Latest Patents

One of his latest patents is an output signal processing apparatus for eddy current sensors. This invention features an exciting coil and a detection coil, with a holding circuit that retains reference data indicating the characteristics of the output signal from the detection coil. The circuit outputs this reference data at a state other than the reference state. Additionally, a pseudo signal generating circuit creates a balance coil pseudo signal that corresponds to the output signal at the reference state. A bridge circuit then processes these signals to produce a bridge output signal that reflects the difference between the output signal and the balance coil pseudo signal.

Another notable patent is the output signal processing method for eddy current sensors. This assembly includes an eddy current sensor and an output signal processing circuit that processes the sensor's output signal. The processing circuit consists of a mixer circuit that multiplies the output signal with a predetermined frequency signal and a low-pass filter that removes high-frequency signals, ultimately outputting a direct-current (DC) signal.

Career Highlights

Shinpei Tokunaga is currently employed at Ebara Corporation, where he applies his expertise in sensor technology. His work has been instrumental in advancing the capabilities of eddy current sensors, making them more efficient and reliable for various applications.

Collaborations

Throughout his career, Tokunaga has collaborated with notable colleagues, including Taro Takahashi and Hiroaki Shibue. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Shinpei Tokunaga's contributions to the field of sensor technology, particularly through his patents related to eddy current sensors, highlight his role as a leading inventor. His work at Ebara Corporation and collaborations with fellow innovators further emphasize his commitment to advancing technology.