Company Filing History:
2 out of 189 
1 out of 929 
1 out of 1 Years Active: 1990-1991
Title: Hiroshi Yamada: Innovator in Refractory Materials
Introduction
Hiroshi Yamada is a notable inventor based in Kariya, Japan. He has made significant contributions to the field of refractory materials, particularly in the development of innovative repairing materials for bricks. With a total of 2 patents to his name, Yamada's work showcases his expertise and dedication to advancing material science.
Latest Patents
Yamada's latest patents focus on a refractory repairing material for bricks. The first patent discloses a mixture comprising 70 to 80 wt % of alumina with a grain size not exceeding 1 mm. This mixture includes 25 to 30 wt % of alumina with a grain size not passing through a 325 mesh and 45 to 50 wt % with a grain size passing through a 325 mesh. Additionally, it contains 1 to 7 wt % of carbonaceous material with a grain size passing through a 60 mesh, 1 to 5 wt % of magnesia with a grain size passing through a 325 mesh, and 10 to 25 wt % of aluminum phosphate. The second patent also pertains to a method of repairing a plate-like brick using similar materials.
Career Highlights
Throughout his career, Hiroshi Yamada has worked with prominent companies such as Toshiba Ceramics Co., Ltd. and Sumitomo Metal Industries, Inc. His experience in these organizations has contributed to his knowledge and expertise in refractory materials.
Collaborations
Yamada has collaborated with notable coworkers, including Takao Sugino and Toshio Kawamura. Their combined efforts have likely fostered innovation and development in their respective fields.
Conclusion
Hiroshi Yamada's contributions to the field of refractory materials through his patents and career experiences highlight his role as an influential inventor. His work continues to impact the industry positively.