Kiyohisa Nara

Title: **Innovative Achievements of Kiyohisa Nara in Centrifugal Fan Technology**

Introduction

Kiyohisa Nara is an accomplished inventor based in Fukuroi, Japan, with a remarkable portfolio that includes six patents. His contributions to the field of centrifugal fan technology exhibit creativity and practicality, aiming to enhance performance while minimizing noise and vibration.

Latest Patents

One of Nara's notable inventions is a centrifugal fan characterized by its lightweight design and innovative structure that effectively restrains vibration. This fan features a resin upper casing and a resin lower casing, enclosing an impeller, a motor, and a circuit board. The design incorporates radial and concentric ribs at the base of the lower casing for reinforcement. To secure the circuit board, resin pins are strategically positioned at these ribs.

Another significant patent by Nara focuses on reducing noise and slimlining the fan’s design. This centrifugal fan consists of a rotor with a rotor yoke, an impeller with blades attached to the rotor yoke’s outer periphery, and a motor that drives the rotor. The fan's casing is ingeniously designed with both a suction and a discharge opening, enabling efficient airflow. The inner periphery of the blade extends inward, overlapping with the rotor yoke to optimize its performance.

Career Highlights

Kiyohisa Nara has built his career working with leading companies in the industry, including Minebea Mitsumi Inc. and Minebea Company, Limited. His dedication to innovation has contributed significantly to advancements in fan technology and engineering solutions in his workplace.

Collaborations

Throughout his career, Nara has collaborated with talented professionals such as Seiya Fujimoto and Tetsuya Seki. These partnerships have undoubtedly enriched his inventiveness, fostering a collaborative environment for innovation and growth in their respective fields.

Conclusion

Kiyohisa Nara stands as a testament to the spirit of innovation, particularly in the realm of centrifugal fan technology. His six patents showcase his commitment to improving product performance while addressing practical concerns like noise and vibration. With his ongoing contributions, Nara continues to inspire future inventors and engineers in the industry.