Company Filing History:
1 out of 73 
1 out of 8 Years Active: 1999
Title: Hisayuki Imamura: Innovator in Porous Silicon Nitride Ceramics
Introduction
Hisayuki Imamura is a notable inventor based in Aichi, Japan. He has made significant contributions to the field of materials science, particularly in the development of porous silicon nitride ceramics. His innovative approach has led to advancements in the production methods of these materials, which are essential in various industrial applications.
Latest Patents
His most recent patent is titled "Method of producing porous silicon nitride ceramics having high strength." This invention relates to a method for producing a porous silicon nitride sintered body that exhibits high strength and low thermal conductivity. The process involves adding more than 10 volume % of rodlike beta-silicon nitride single crystals into a mixture of silicon nitride raw powder and a sintering additive. The formed body is prepared with the rodlike beta-silicon nitride single crystals oriented parallel to the casting plane, utilizing techniques such as sheet casting and extrusion forming. The sintering process then develops elongated silicon nitride grains from the added crystals, resulting in a sintered body with a complex grain structure.
Career Highlights
Throughout his career, Imamura has worked with the Japan Agency of Industrial Science and Technology, specifically within the Fine Ceramics Research Association. His work has focused on enhancing the properties of silicon nitride ceramics, making them more suitable for various applications in technology and engineering.
Collaborations
Imamura has collaborated with several esteemed colleagues, including Kiyoshi Hirao and Manuel E. Brito. These partnerships have contributed to the advancement of research in the field of ceramics and materials science.
Conclusion
Hisayuki Imamura's innovative methods in producing porous silicon nitride ceramics have paved the way for advancements in material technology. His contributions continue to influence the industry and inspire future research in ceramics.