Haruo Yamamura

Title: Haruo Yamamura: Innovator in Single Crystal Measurement Technology

Introduction

Haruo Yamamura is a notable inventor based in Kishima-gun, Japan. He has made significant contributions to the field of materials science, particularly in the measurement of single crystals. His innovative approach has led to advancements that enhance the efficiency and accuracy of single crystal growth.

Latest Patents

Yamamura holds a patent for a "Method and apparatus for measuring a diameter of a single crystal." This invention relates to a technique that allows for the precise measurement of the diameter of single crystal growth portions, including the shoulder portion. The method involves synchronizing the oscillation center of a growing single crystal with a scanning line of a one-dimensional CCD camera. This synchronization enables accurate diameter measurements over a period longer than the oscillation cycle of the crystal. The apparatus includes a one-dimensional CCD camera, an XY table for movement, and systems for determining scanning positions and calculating diameters based on image signals. This innovation ensures that the diameter of the single crystal can be controlled automatically, meeting the demand for larger and heavier single crystals efficiently.

Career Highlights

Haruo Yamamura is associated with Sumitomo Sitix Corporation, where he applies his expertise in single crystal technology. His work has been instrumental in advancing the methods used in the production of high-quality single crystals, which are essential in various applications, including electronics and optics.

Conclusion

Haruo Yamamura's contributions to the field of single crystal measurement technology exemplify the impact of innovative thinking in materials science. His patented methods and apparatus not only enhance measurement accuracy but also streamline the growth process of single crystals.