Location History:
- Fukuoka, JP (1989)
- Oomuta, JP (1990)
- Ohmuta, JP (1990)
Company Filing History:
2 out of 1,037 
1 out of 2 
1 out of 832,718 Years Active: 1989-1990
Title: Innovations by Osamu Yagishita
Introduction
Osamu Yagishita is a notable inventor based in Oomuta, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced ceramics. With a total of three patents to his name, Yagishita's work focuses on enhancing the mechanical properties of ceramics for various applications.
Latest Patents
Yagishita's latest patents include innovations in titanium carbo-nitride and chromium carbide-based ceramics. These new ceramics exhibit excellent mechanical properties such as high density, strength, hardness, and toughness. The manufacturing process involves sintering a mixture that includes 1 to 90 percent by weight of chromium carbide added to titanium carbo-nitride, along with elements from the transition metals of groups IV, V, VI, and VII, ferrous metals, and semi-metals. In some cases, boron carbide is also incorporated to enhance the properties of the ceramics. Another significant patent involves the method of manufacturing metal diboride ceramics. This process includes mixing powders of TiB2, ZrB2, and HfB2 with various titanium, zirconium, and hafnium compounds, along with boron, to create a mixed powder. The resulting sintered product has a boron content of 65 to 67 atom percent and consists solely of metal diboride crystals with a hexagonal structure.
Career Highlights
Throughout his career, Yagishita has worked with the Agency of Industrial Science and Technology, contributing to advancements in material technologies. His innovative approaches have led to the development of ceramics that are not only strong but also versatile in their applications.
Collaborations
Yagishita has collaborated with notable individuals in his field, including Tadahiko Watanabe and Hideki Yamamoto. These collaborations have further enriched his research and development efforts.
Conclusion
Osamu Yagishita's contributions to the field of ceramics through his innovative patents demonstrate his commitment to advancing material science. His work continues to influence the development of high-performance ceramics that meet the demands of modern applications.