Nobuo Katsuoka

Title: Nobuo Katsuoka: Innovator in Single Crystal Technology

Introduction

Nobuo Katsuoka is a prominent inventor based in Takasaki, Japan. He has made significant contributions to the field of single crystal technology, holding a total of 8 patents. His innovative methods and apparatuses have advanced the processes involved in the production of single crystal ingots.

Latest Patents

Katsuoka's latest patents include a method for measuring the diameter of a single crystal ingot. This method involves calculating the weight of the pulled-up single crystal and determining the descent amount of the melt surface relative to the crucible wall. The process allows for either correcting the measured ingot diameter or adjusting the crucible's position accordingly. Another notable patent is a Czochralski-type single crystal pulling apparatus. This apparatus features a vertically shifting heater device and a control system that manages the vertical movements of both the heater and the crucible assembly in a coordinated manner.

Career Highlights

Throughout his career, Katsuoka has worked with notable companies such as Shin-Etsu Handotai Co., Ltd. and Shin-Etsu Handotai Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in single crystal growth and measurement techniques.

Collaborations

Katsuoka has collaborated with esteemed colleagues, including Yoshihiro Hirano and Atsushi Ozaki. These partnerships have fostered innovation and development in the field of single crystal technology.

Conclusion

Nobuo Katsuoka's contributions to single crystal technology through his patents and collaborations highlight his role as a key innovator in this specialized field. His work continues to influence advancements in the production and measurement of single crystal ingots.