Yoshito Kojima

Title: Innovations by Yoshito Kojima in Ceramic Technology

Introduction

Yoshito Kojima is a notable inventor based in Nagoya, Japan. He has made significant contributions to the field of ceramic technology, particularly in the development of high-performance materials. His work focuses on enhancing the wear resistance and chipping resistance of ceramic components used in various industrial applications.

Latest Patents

Kojima holds a patent for a ceramic sintered body, insert, cutting tool, and friction stir welding tool. This innovative ceramic sintered body is designed to provide high wear resistance and chipping resistance. The composition includes alumina (AlO), tungsten carbide (WC), and zirconia (ZrO). The patent specifies that the zirconium element can be present at the grain boundaries of the AlO and WC, contributing to the material's enhanced properties. The ceramic sintered body contains 55.0 to 97.5 vol % of WC, 0.1 to 18.0 vol % of ZrO, with the balance being AlO. The ZrO is in a tetragonal structure or a mixed phase of tetragonal and monoclinic structures.

Career Highlights

Yoshito Kojima is associated with NGK Spark Plug Company, Limited, where he applies his expertise in ceramic materials. His work at NGK has allowed him to contribute to the advancement of cutting tools and welding technologies, which are essential in various manufacturing processes.

Collaborations

Kojima has collaborated with notable colleagues such as Hiroshi Yonekura and Yusuke Katsu. These collaborations have fostered innovation and development in the field of ceramic technology, leading to advancements that benefit the industry.

Conclusion

Yoshito Kojima's contributions to ceramic technology through his innovative patents and collaborations highlight his role as a significant inventor in this field. His work continues to influence the development of high-performance materials used in various applications.