Company Filing History:
4 out of 197 
1 out of 68 
Years Active: 1989-1991
Title: Tadao Yato: Innovator in Uranium Dioxide Pellet Fabrication
Introduction
Tadao Yato is a notable inventor based in Mito, Japan. He has made significant contributions to the field of uranium dioxide pellet fabrication, holding a total of 5 patents. His innovative approaches have enhanced the safety and efficiency of nuclear materials.
Latest Patents
Yato's latest patents include a process for making uranium dioxide pellets of controlled grain size. This process involves treating uranium dioxide fluoride with ammonia in two stages to form a precipitate. The precipitate is then formed into UO.sub.2 pellets with grain sizes ranging from 10 to 100 micrometers. Another patent details a method for fabricating UO.sub.2 pellets from highly active uranium dioxide powders. This method includes adding a pore-former agent, compacting the mixture, and sintering the green pellets to achieve a sintered density of 94 to 97% TD. These innovations help to restrain fission gases generated during irradiation, thereby enhancing safety.
Career Highlights
Throughout his career, Tadao Yato has worked with prominent companies such as Mitsubishi Kinzoku Kabushiki Kaisha and Mitsubishi Metal Corporation. His experience in these organizations has contributed to his expertise in the field of nuclear materials.
Collaborations
Yato has collaborated with notable coworkers, including Hiroshi Tanaka and Takeshi Onoue. Their combined efforts have further advanced the research and development of uranium dioxide pellet fabrication processes.
Conclusion
Tadao Yato's contributions to the field of uranium dioxide pellet fabrication are significant and impactful. His innovative patents and collaborations have paved the way for advancements in nuclear safety and efficiency.