Tamotsu Ueyama

Title: The Innovations of Tamotsu Ueyama

Introduction

Tamotsu Ueyama is a notable inventor based in Oyama, Japan. He has made significant contributions to the field of pyroelectric materials, holding a total of 4 patents. His work focuses on enhancing the performance of pyroelectric ceramic compositions, which have applications in various technological fields.

Latest Patents

Ueyama's latest patents include a pyroelectric ceramic composite structure. This structure is composed of ceramic agglomerations assembled from multiple pyroelectric ceramic compositions, designed to achieve a high pyroelectric constant and a second transition temperature below its Curie temperature. Another significant patent is for a pyroelectric ceramic composition of the general formula: PbZr.sub.X (Zn.sub.1/3 Nb.sub.2/3).sub.Y Ti.sub.Z O.sub.3, where X+Y+Z=1. This composition exhibits both a high pyroelectric constant and a second transition temperature below its Curie temperature. Additionally, he has developed a multilayered pyroelectric structure comprising a stack of layers, each with different compositions, enhancing the overall performance of the material.

Career Highlights

Throughout his career, Ueyama has worked with prominent companies such as Mitsubishi Mining and Cement Co. Ltd. and Hitachi Chemical Company, Ltd. His experience in these organizations has contributed to his expertise in the field of pyroelectric materials.

Collaborations

Ueyama has collaborated with notable individuals in his field, including Akira Kawabata and Hiroharu Kamiyama. These collaborations have likely enriched his research and development efforts.

Conclusion

Tamotsu Ueyama's innovative work in pyroelectric ceramic compositions has led to significant advancements in the field. His patents reflect a deep understanding of material science and its applications, showcasing his contributions to technology and innovation.