Taketoshi Okajo

Title: The Innovations of Taketoshi Okajo

Introduction

Taketoshi Okajo is a notable inventor based in Nirasaki, Japan. He has made significant contributions to the field of substrate processing, holding a total of six patents. His work focuses on improving methods related to temperature control and chamber cleaning in substrate processing apparatuses.

Latest Patents

Among his latest patents, Okajo has developed a substrate temperature adjusting method. This method involves changing the temperature control range of a heater in a substrate processing apparatus. By adjusting the flow rate of coolant through a coolant channel, he can modify the thermal conductivity of a mounting table. This innovation ensures that the upper limit of the temperature control range remains below the heat-resistant temperature of the adhesive material used in the mounting table. Another significant patent is his chamber cleaning method, which efficiently removes CF-based shoulder deposits containing silicon and aluminum from the outer periphery of an electrostatic chuck (ESC). This method utilizes a mixed gas and plasma to decompose and remove the deposits while protecting the top surface of the ESC.

Career Highlights

Throughout his career, Taketoshi Okajo has worked with prominent companies such as Tokyo Electron Limited and Sumitomo Osaka Cement Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to advancements in substrate processing technologies.

Collaborations

Okajo has collaborated with notable colleagues, including Yasuharu Sasaki and Takehiro Ueda. These partnerships have fostered innovation and the sharing of ideas within the field.

Conclusion

Taketoshi Okajo's contributions to substrate processing through his patents and collaborations highlight his role as a significant inventor in the industry. His innovative methods continue to influence the efficiency and effectiveness of substrate processing technologies.