Company Filing History:
1 out of 4,819 
1 out of 15 Years Active: 1997
Title: Katumi Yamada: Innovator in Ceramic Substrates
Introduction
Katumi Yamada is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of ceramic substrates, particularly through his innovative patent that enhances the performance of these materials.
Latest Patents
Yamada holds a patent for a "Zirconia-added alumina substrate with direct bonding of copper." This invention involves a ceramic substrate that is a high-temperature fired body, primarily composed of alumina and zirconia, along with a ceramics sintering assisting agent. The assisting agent can be yttria, calcia, magnesia, or ceria, with specific weight percentages for each component to optimize the substrate's properties.
Career Highlights
Throughout his career, Katumi Yamada has worked with prominent companies such as Fuji Electric Co., Ltd. and Sumitomo Metal Ceramics Inc. His experience in these organizations has allowed him to refine his expertise in ceramic materials and their applications.
Collaborations
Yamada has collaborated with notable colleagues, including Masaharu Nishiura and Shigemasa Saito. These partnerships have contributed to the advancement of ceramic technology and innovation.
Conclusion
Katumi Yamada's work in the field of ceramic substrates exemplifies the impact of innovative thinking in material science. His patent and collaborations highlight his commitment to advancing technology in this area.