Takashi Nagaoka, Deceased

Title: The Innovative Contributions of Takashi Nagaoka

Introduction

Takashi Nagaoka was a notable inventor known for his significant contributions to the field of vacuum technology. He was based in Tsukuba, Japan, and his work has left a lasting impact on the industry. Nagaoka's innovative spirit and technical expertise led to the development of a unique turbo vacuum pump design.

Latest Patents

Nagaoka held a patent for a turbo vacuum pump with a magnetically levitated rotor and a control unit. This innovative design features a rotor supported by magnetic bearings within a housing that includes a suction port and an exhaust port. The pump is equipped with a peripheral flow pump stage and a screw pump stage, allowing it to maintain pressure at or near atmospheric levels at the exhaust port. Notably, before starting the pump, the magnetic bearings are activated to reposition the rotor and remove any reaction products that may have accumulated inside. Additionally, the stator is heated prior to operation to reduce the binding force of these reaction products, enabling the pump to restart even after being locked due to solidified deposits.

Career Highlights

Throughout his career, Takashi Nagaoka worked with prominent companies such as Hitachi, Ltd. and Seiko Seiki Co., Ltd. His experience in these organizations allowed him to refine his skills and contribute to advancements in vacuum technology.

Collaborations

Nagaoka collaborated with several talented individuals during his career, including Seiji Sakagami and Masahiro Mase. Their collective efforts in research and development have furthered the understanding and application of vacuum systems.

Conclusion

Takashi Nagaoka's innovative work in turbo vacuum pump technology has made a significant impact on the industry. His patent and collaborations reflect his dedication to advancing vacuum technology, and his legacy continues to inspire future inventors.