Yasuharu Yamamoto

Title: Innovations of Yasuharu Yamamoto

Introduction

Yasuharu Yamamoto is a notable inventor based in Hiroshima, Japan. He has made significant contributions to the field of technology, particularly in the development of devices and methods that enhance precision in various applications. With a total of two patents to his name, Yamamoto's work reflects his commitment to innovation and excellence.

Latest Patents

Yamamoto's latest patents include an aligner and correction value calculation method for aligner. This invention features a driving pulley connected to a motor, a toothed belt hung with respect to a driven pulley connected to a spindle, and a pulley detection sensor that detects the rotation position of the driven pulley. Each time the driving pulley rotates the driven pulley once, the misalignment in the direction of rotation of the driven pulley is detected. A correction value of the rotational misalignment is calculated based on the known rotation ratio of the driving and driven pulleys. In cases where the rotation angle information of the driving motor is lost, detection data for calibration is created to search for a correction value corresponding to the current phases of the driven pulley and the toothed belt after an origin search.

Another significant patent is a device and method for detecting the position of a semiconductor substrate. This invention allows for precise detection of the coordinates of the center of a disc-shaped substrate from image data captured by a single camera. It calculates the amount of positional misalignment of the substrate during processing and corrects its position to ensure it is located at the precise loading position. The coordinates of the center position are detected using the Pythagorean theorem, based on isosceles right triangles generated from the coordinates of two places on edge data extracted from the image data.

Career Highlights

Yasuharu Yamamoto is currently employed at Rorze Corporation, where he continues to innovate and develop advanced technologies. His work at the company has positioned him as a key contributor to the field of precision engineering.

Collaborations

Yamamoto collaborates with talented coworkers, including Keiji Fujimoto and Daigo Tamatsukuri. Their combined expertise fosters an environment of creativity and innovation, leading to groundbreaking advancements in their respective fields.

Conclusion

Yasuharu Yamamoto's contributions to technology through his patents demonstrate his dedication to innovation and precision. His work continues to impact various industries, showcasing the importance of