Company Filing History:
3 out of 90 
3 out of 8 Years Active: 1999
Title: Yasuhiro Shigegaki: Innovator in Silicon Nitride Ceramics
Introduction
Yasuhiro Shigegaki is a notable inventor based in Aichi, Japan. He has made significant contributions to the field of materials science, particularly in the development of silicon nitride ceramics. With a total of three patents to his name, Shigegaki's work focuses on enhancing the properties of porous silicon nitride.
Latest Patents
Shigegaki's latest patents include a method for producing porous silicon nitride ceramics with high strength. This innovative method involves adding more than 10 volume percent of rodlike beta-silicon nitride single crystals into a mixture of silicon nitride raw powder and a sintering additive. The process results in a sintered body with elongated silicon nitride grains that exhibit improved strength and low thermal conductivity. Another significant patent focuses on creating high-porosity, high-strength porous silicon nitride. This invention features rodlike grains oriented in a single direction, providing excellent tolerance to strain and stress, with a porosity ranging from 5 to 30 percent.
Career Highlights
Throughout his career, Yasuhiro Shigegaki has worked with the Japan Agency of Industrial Science and Technology, specifically within the Fine Ceramics Research Association. His expertise in ceramics has positioned him as a key figure in advancing the technology surrounding silicon nitride materials.
Collaborations
Shigegaki has collaborated with notable colleagues such as Motohiro Toriyama and Kiyoshi Hirao. Their combined efforts have contributed to the advancements in the field of ceramics and materials science.
Conclusion
Yasuhiro Shigegaki's innovative work in silicon nitride ceramics has led to significant advancements in material properties, making him a prominent figure in the field. His contributions continue to influence the development of high-performance ceramics.