Seigo Ohiwa

Title: Seigo Ohiwa: Innovator in Aluminum Nitride Powder Technology

Introduction

Seigo Ohiwa is a notable inventor based in Nagoya, Japan. He has made significant contributions to the field of materials science, particularly in the development of aluminum nitride powder compositions. His innovative work has implications for various applications, including electronics and ceramics.

Latest Patents

Ohiwa holds a patent for an aluminum nitride powder capable of forming a colored sintered body. This invention involves a sinterable aluminum nitride powder composition that includes specific compounds to enhance its properties. The composition is prepared by adding about 0.05-10.0 parts by weight of compounds such as calcium tungstate and calcium molybdate to 100 parts by weight of aluminum nitride powder. The resulting powder exhibits a pressurized bulk density of about 1.50-1.75 g/cm³ and an average particle diameter of about 1.0-3.0 µm. This innovation allows for the formation of colored sintered bodies with minimal color unevenness and improved manufacturing processes for multilayered substrates.

Career Highlights

Seigo Ohiwa is associated with Sumitomo Metal Ceramics Inc., where he continues to advance his research and development efforts. His work has garnered attention for its practical applications in the ceramics industry, particularly in enhancing the performance and aesthetic qualities of sintered materials.

Collaborations

Ohiwa has collaborated with notable colleagues, including Hiroshi Iwase and Masanori Oguni. These partnerships have contributed to the advancement of their shared research interests and have fostered innovation within their field.

Conclusion

Seigo Ohiwa's contributions to aluminum nitride powder technology exemplify the impact of innovative thinking in materials science. His patented work not only enhances the properties of ceramics but also paves the way for future advancements in the industry.