Joo Ishihara

Title: Joo Ishihara: Innovator in Rolling Mill Technology

Introduction

Joo Ishihara is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of rolling mill technology, holding a total of 4 patents. His work focuses on enhancing the durability and efficiency of rolling processes.

Latest Patents

Ishihara's latest patents include innovative methods for producing long-life rolls for rolling mills. One of his key inventions is a roll designed to manufacture rolled sheets with improved brightness. This roll features a surface made of steel containing carbide, with an average grain size not exceeding 0.6 µm and an areal ratio of carbide in the matrix ranging from 6% to 30%. The manufacturing process involves canning steel powder produced by an RST process into a metal cylindrical container under vacuum conditions, followed by sintering the powder through hot isostatic pressing. The sintered body is then machined into the configuration of a roll, which undergoes heat treatment and finishing work. Additionally, he has developed a magnetic separator matrix composed of wire or ribbon made from a crystalline magnetic alloy with a fine-grained structure and a supersaturated solid solution structure.

Career Highlights

Throughout his career, Joo Ishihara has worked with prominent organizations, including Hitachi, Ltd. and the Research Development Corporation of Japan. His experience in these companies has allowed him to refine his expertise in rolling mill technology and contribute to advancements in the field.

Collaborations

Ishihara has collaborated with notable colleagues such as Toshio Ogawa and Hideo Suzuki. Their combined efforts have led to significant innovations in the technology surrounding rolling mills.

Conclusion

Joo Ishihara's contributions to rolling mill technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence advancements in manufacturing processes.