Location History:
- Sayama, JP (1980 - 1999)
- Saitama, JP (1993 - 1999)
Company Filing History:
14 out of 817 
5 out of 642 
1 out of 1 Years Active: 1980-1999
Title: **Nobuyoshi Kasahara: Innovator in Electrically Conductive Materials**
Introduction
Nobuyoshi Kasahara, based in Sayama, Japan, is an accomplished inventor with a total of 16 patents to his name. His innovative contributions primarily focus on the development of electrically conductive barium sulfate compositions, showcasing his expertise in the field of material science.
Latest Patents
Among his notable patents is the "Electrically Conductive Barium Sulfate-Containing Composition." This invention details a method for creating a composition comprised of BaSO4 particles, which possess a specific surface area ranging from 0.1 to 150 m²/g. The uniqueness of this composition lies in its SnO₂ coating, which varies in thickness from 2 to 80 nm and contains 1 to 15% by weight of Sb₂O₃. The method includes several steps, beginning with the addition of an acidic solution containing 1 to 95% by weight SnCl₄ to an aqueous BaSO₄ dispersion, followed by a series of pH adjustments and the introduction of an SbCl₃ solution. The product is then separated, dried, and ignited at temperatures between 300 to 800°C.
Furthermore, Kasahara's patent titled "Electrically Conductive Barium Sulfate Filler and Method for Preparing Same" describes an innovative filler made from barium sulfate, with a tin dioxide coating that may be doped with niobium or tantalum. This filler maintains significant surface area and adheres to specific thickness requirements, demonstrating its practical applications in various industries.
Career Highlights
Throughout his career, Nobuyoshi Kasahara has been associated with various esteemed companies, including Mitsui Mining & Smelting Company, Ltd. and Metallgesellschaft Aktiengesellschaft. His work in these organizations has greatly influenced the development of conductive materials and their applications.
Collaborations
Kasahara has collaborated with several notable individuals in his field, including Takao Hayashi and Norihiro Sato. These collaborations have contributed to the innovative breakthroughs in the development of his patented materials.
Conclusion
Nobuyoshi Kasahara stands out as a significant figure in the realm of innovations, particularly in the field of electrically conductive materials. His various patents demonstrate his commitment to advancing technology and material science, ensuring that his contributions will continue to impact various industries for years to come.