Keiji Kido

Title: Keiji Kido: Inventor in Flow Measurement

Introduction

Keiji Kido is an inventor associated with Kyoto, Japan. His work includes flow-measurement technologies, and his patent record lists 2 patents.

Latest Patents

Kido’s listed patents address measuring fluid flow under different operating conditions.

Coriolis Mass Flowmeter with No Risk of Metal Ion Elution. This invention describes a Coriolis mass flowmeter designed for corrosive fluids. Its straight measuring tube, supports, and frames are made of highly elastic plastic, reducing the risk of metal-ion elution. A vibration exciter drives the tube, while two vibration detectors measure its motion. The fluid’s mass flow rate is determined from the phase shift between the detected vibration waveforms.

Flow Measurement Device. This device uses a bluff body in a measuring pipe to generate Karman vortices. A piezoelectric element detects changes in the vortices, and a downstream temperature sensor measures the fluid’s temperature. The flow rate can then be corrected by comparing the vortex-shedding frequency at the measured temperature with the frequency at a reference temperature.

Career Highlights

Kido’s listed company affiliations include Kofloc Corp. and Alphitechnology Co., Ltd. His patent work reflects an emphasis on practical flow measurement, including equipment for corrosive fluids and temperature-based flow-rate correction.

Collaborations

Kido’s listed coworkers include Shunta Furukawa and Kota Tanaka.

Conclusion

Keiji Kido’s two listed patents focus on reliable flow measurement, combining corrosion-conscious materials with methods for accounting for fluid temperature.