This inventor holds 2 USPTO granted patents. Top assignees: Toshiba Ceramics Co., Ltd., Tokyo Shibaura Denki Kabushiki Kaisha, Other. Active years: 1985.
Company Filing History:
2 out of 189 
1 out of 2,916 
1 out of 834,453 Years Active: 1985
Title: Tetsuro Urakawa: Innovator in Silicon Nitride Technology
Introduction
Tetsuro Urakawa is a notable inventor based in Kariya, Japan. He has made significant contributions to the field of materials science, particularly in the development of silicon nitride technologies. With a total of 2 patents, his work has had a lasting impact on the ceramic industry.
Latest Patents
Urakawa's latest patents include a method for manufacturing β-type silicon nitride whiskers. This innovative process involves reacting a mixture of silica, carbon, and cryolite in a specific molar ratio within a mixed gas atmosphere of N₂ and NH₃. The mixture is heated to temperatures ranging from 1,250°C to 1,450°C. Additionally, he has developed a process for preparing silicon nitride powder, which entails baking a powdery mixture of silica powder, carbon powder, and silicon nitride powder in a non-oxidative atmosphere containing nitrogen at temperatures between 1,350°C and 1,550°C.
Career Highlights
Throughout his career, Urakawa has worked with prominent companies such as Toshiba Ceramics Co., Ltd. and Tokyo Shibaura Denki Kabushiki Kaisha. His experience in these organizations has allowed him to refine his expertise in ceramic materials and their applications.
Collaborations
Some of his notable coworkers include Akihiko Tsuge and Kazunari Koide. Their collaborative efforts have contributed to advancements in the field of silicon nitride technology.
Conclusion
Tetsuro Urakawa's innovative work in silicon nitride technology has established him as a key figure in materials science. His patents reflect a commitment to advancing the capabilities of ceramic materials, which continue to play a crucial role in various industries.