Nobuharu Kido

Title: Nobuharu Kido: Innovator in Centrifugal Technology

Introduction

Nobuharu Kido is a prominent inventor based in Hitachinaka, Japan. He has made significant contributions to the field of centrifugal technology, holding a total of 4 patents. His innovative designs focus on enhancing the efficiency and safety of centrifugal apparatuses.

Latest Patents

One of Kido's latest patents is a centrifugal apparatus with protection. This invention includes a rotor, a motor, and a speed signal generator that utilizes a disc with alternating reflective and non-reflective stripes. The system generates a rotating speed signal of the rotor, allowing both a microprocessor and an analog processing circuit to independently judge the rotor's speed. This dual assessment helps prevent overspeed conditions. Additionally, the microprocessor can detect the motor's rotating speed and compare it with the rotor's speed. If the difference exceeds a predetermined reference, the microprocessor will stop the rotor to ensure safety. Another innovative feature is the pulse compensation circuit, which detects any lack of pulse in the rotating speed signal and generates a compensatory pulse.

Another significant patent is a motor control system for a centrifugal machine. This power control apparatus regulates the power supplied to an electric motor that rotates the rotor in a centrifuge. It includes first and second inverters and a smoothing capacitor positioned between them. In motor power mode, the first inverter charges the smoothing capacitor with power from an AC supply. In motor braking mode, the second inverter uses power regenerated by the motor during braking to recharge the smoothing capacitor, returning the power back to the AC supply through the first inverter. A reactor is also included to reduce harmonic components in the current supplied to or from the AC power supply.

Career Highlights

Kido is currently employed at Hitachi Koki Co., Ltd., where he continues to develop innovative technologies in centrifugal systems. His work has significantly impacted the efficiency and safety of various industrial applications.

Collaborations

Throughout his career, Kido has collaborated with notable colleagues, including Masahiro Inaniwa and Shinji Watanabe. These partnerships have fostered a creative environment that encourages innovation and technological advancement.

Conclusion

Nobuharu Kido is a distinguished inventor whose work in centrifugal technology has led to several important patents. His innovative designs and collaborative efforts continue to shape the future of this field