Yasuo Tsukuda

Title: Yasuo Tsukuda: Innovator in Polishing and Spectrophotometry

Introduction

Yasuo Tsukuda is a prominent inventor based in Osaka, Japan. He has made significant contributions to the fields of polishing technology and spectrophotometry. With a total of 16 patents to his name, Tsukuda's work has advanced the capabilities of precision measurement and monitoring in various applications.

Latest Patents

One of Tsukuda's latest inventions is a polishing state monitoring method. This apparatus measures characteristic values of a surface being polished to determine the timing of the polishing end point. The system includes a light-emitting unit that applies light to the workpiece's surface, a light-receiving unit that captures reflected light, and a spectroscope unit that divides the reflected light into multiple wavelengths. Additionally, it features light-receiving elements that convert the detected light into electrical information. A spectral data generator processes this information to produce spectral data, which is then analyzed by a processor to calculate the characteristic values of the workpiece's surface.

Another notable invention is a spectrophotometer designed for measuring liquid samples. In this device, a droplet of liquid is held on a transparent cylindrical body by surface tension. A transparent cover plate is lowered to create a small gap, allowing measurement light to pass through the liquid sample. The transmitted light is then directed into a spectro-detecting unit for analysis. This innovative design enables easy transmission spectro-measurement of extremely small liquid samples.

Career Highlights

Throughout his career, Yasuo Tsukuda has worked with esteemed companies such as Shimadzu Corporation and Ebara Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in his field.

Collaborations

Tsukuda has collaborated with notable colleagues, including Yoichi Kobayashi and Shunsuke Nakai. These partnerships have fostered innovation and the development of advanced technologies.

Conclusion

Yasuo Tsukuda's contributions to polishing technology and spectrophotometry have established him as a leading inventor in his field. His innovative patents continue to influence the industry and pave the way for future advancements.