This inventor holds 2 USPTO granted patents. Top assignees: Nippon Steel Corporation, Harima Ceramic Co. Ltd., Krosaki Corporation. Active years: 1987-1993.
Location History:
- Oita, JP (1987)
- Aichi, JP (1993)
Company Filing History:
2 out of 3,711 
1 out of 5 
1 out of 14 Years Active: 1987-1993
Title: Hideo Yaoi: Innovator in Refractory Materials
Introduction
Hideo Yaoi is a notable inventor based in Aichi, Japan. He has made significant contributions to the field of refractory materials, holding 2 patents that showcase his innovative approach to enhancing the performance of materials used in steel-making processes.
Latest Patents
Yaoi's latest patents include advancements in basic monolithic refractories. These refractories are characterized by a chemical composition that consists essentially of 65%-96% by weight of MgO, 2.6%-20% by weight of ZrO₂, 1.3-10% by weight of SiO₂, 2% or less by weight of CaO, 0.5% or less by weight of Fe₂O₃, and 1% or less by weight of Al₂O₃. The mineral composition primarily contains periclase, with cubic zirconia and forsterite as sub-components. These refractories exhibit excellent slaking resistance, slag erosion resistance, and spalling resistance, making them ideal for use as lining materials in steel-making furnaces. Additionally, he developed a treating agent for desulfurizing molten steel, which consists of CaO, CaF₂, and MgO, designed to enhance the quality of molten steel by reducing sulfur content.
Career Highlights
Throughout his career, Hideo Yaoi has worked with prominent companies such as Nippon Steel Corporation and Harima Ceramic Co. Ltd. His work has significantly impacted the industry, particularly in improving the efficiency and durability of materials used in steel production.
Collaborations
Yaoi has collaborated with esteemed colleagues, including Toshihiro Isobe and Yukihiro Suekawa. These partnerships have fostered innovation and contributed to the advancement of refractory technology.
Conclusion
Hideo Yaoi's contributions to the field of refractory materials demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of material science and its applications in the steel industry.