Shoji Nakao

Title: Innovations by Shoji Nakao

Introduction

Shoji Nakao is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of polishing methods and apparatuses. With a total of 2 patents, his work focuses on enhancing the efficiency and effectiveness of polishing processes.

Latest Patents

Nakao's latest patents include a polishing method and a double-side polishing method. The polishing method proposes a technique for appropriately delivering works to carriers during the transfer process. In this method, a work retained in a carrier is polished by placing the carrier between an upper plate and a lower plate. The work is fitted into a hole of the carrier, and at least one of the plates is rotated while a polishing agent is supplied. This innovative approach ensures that the work is carefully positioned and guided during the polishing process.

The double-side polishing method aims to improve the flatness of a work in single wafer type double-side polishing. In this method, a carrier larger in diameter than the upper and lower surface plates is used to hold a wafer smaller in diameter. The carrier is rotated by multiple eccentric gears, allowing for complex motion that enhances the equalization of peripheral speeds on the wafer. This results in improved flatness, showcasing Nakao's ingenuity in addressing challenges in the polishing industry.

Career Highlights

Throughout his career, Shoji Nakao has worked with reputable companies such as Kashiwara Machine Manufacturing Co., Ltd. and Sumitomo Mitsubishi Silicon Corporation. His experience in these organizations has contributed to his expertise in polishing technologies and methods.

Collaborations

Nakao has collaborated with notable coworkers, including Akira Horiguchi and Hiroto Fukushima. Their combined efforts have likely led to advancements in the field of polishing methods.

Conclusion

Shoji Nakao's contributions to polishing methods and apparatuses reflect his innovative spirit and dedication to improving industrial processes. His patents demonstrate a commitment to enhancing the efficiency and effectiveness of polishing techniques.