Ichizo Itoh

Title: Ichizo Itoh: Innovator in Ultrasonic and Vortex Flow Measurement Technologies

Introduction

Ichizo Itoh is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of flow measurement technology, holding a total of 3 patents. His innovative work focuses on ultrasonic and vortex flowmeters, which are essential in various industrial applications.

Latest Patents

One of his latest patents is the Ultrasonic Fluid Vibrating Flowmeter. This device comprises a set of ultrasonic transmitters and receivers mounted on a pipe carrying the fluid whose flow rate is to be measured. The flowmeter includes a driving device that intermittently drives the transmitter using burst waves containing an oscillation frequency. This causes the transmitter to apply ultrasonic signals to the fluid, inducing its vibration. A standard timing device generates a standard signal to control the timing of the burst waves, allowing the receiver to capture an amplitude-modulated signal influenced by the fluid's vibration. The system also features a sampling device that samples the envelope of the amplitude-modulated signal, enabling the detection of the vibration frequency while minimizing noise influences.

Another notable patent is the Vortex Flowmeter. This device consists of a signal converting sensor that transforms the flow rate into a vortex signal. It includes a tracking filter section that adjusts the corner frequency of a low-pass filter to deliver a filtered signal. Additionally, a noise discriminating circuit processes the frequency signal obtained from the filtered signal, performing calculations to achieve noise discrimination and preventing the output of the frequency signal when noise is detected.

Career Highlights

Ichizo Itoh is currently employed at Yokogawa Electric Corporation, a leading company in the field of measurement and control technology. His work at Yokogawa has allowed him to develop cutting-edge technologies that enhance the accuracy and reliability of flow measurement systems.

Collaborations

Throughout his career, Ichizo has collaborated with notable colleagues such as Toru Fujii and Toshiyuki Miyata. These collaborations have contributed to the advancement of innovative solutions in flow measurement technology.

Conclusion

Ichizo Itoh's contributions to ultrasonic and vortex flow measurement technologies have established him as a key figure in the field. His patents reflect a commitment to innovation and excellence, making a significant impact on industrial applications.