Kiyoshi Ohishi

Title: **Kiyoshi Ohishi: Innovator in Power Conversion and Motor Control**

Introduction

Kiyoshi Ohishi is a renowned inventor based in Niigata, Japan. He has contributed significantly to the fields of power conversion and motor control, securing three patents that showcase his innovative mindset and engineering expertise.

Latest Patents

Ohishi's latest patents include a "Power Conversion Device," which introduces a sophisticated control amount calculation unit that enhances the driving conditions of rotary electric machines. This invention features a limitation range-provided command value generation unit that dynamically adjusts command values based on driving conditions, ensuring optimal performance of the power converter.

Another notable patent is the "Control Device and Speed Reducer System," which discloses a control device for managing a motor linked to an oscillatory cyclo-speed reducer. This system employs an angle acquirer to gather input about the motor's rotational angle, alongside an estimator that assesses angular errors to refine motor performance through precise current adjustments.

Career Highlights

Throughout his career, Kiyoshi Ohishi has worked with prestigious institutions, including the Nagaoka University of Technology and Hitachi Medical Corporation. His experiences in these organizations have equipped him with valuable skills and knowledge that reflect in his patent developments.

Collaborations

Ohishi has collaborated with notable individuals, such as Yuki Yokokura and Mina Ogawa. Their collective efforts in research and development have led to advancements in motor control technology and power conversion systems, contributing to the enhancement of engineering practices in Japan.

Conclusion

Kiyoshi Ohishi stands out as an influential inventor whose work continues to push the boundaries of innovation in power conversion and motor control. His patents not only reflect his ingenuity but also his commitment to advancing technology for practical applications. As he continues his journey in invention, the impact of his contributions will surely resonate within the engineering community.