Company Filing History:
3 out of 1,037 
2 out of 27 
1 out of 77 Years Active: 1985-1988
Title: **Innovator Tsuyoshi Hagio: Pioneering High-Temperature Resistant Sliding Members**
Introduction
Tsuyoshi Hagio, an inventor based in Tosu, Japan, is renowned for his contributions to materials science, particularly in the domain of high-temperature-resistant sliding components. With a portfolio that includes four patents, Hagio's innovative approach has positioned him as a key figure in the development of advanced materials for industrial applications.
Latest Patents
Hagio's recent patents focus on the development of sliding members designed to withstand extreme temperatures and abrasion. One of his latest inventions, the "Sliding member of graphite-metal borides," exhibits remarkable properties, including a friction coefficient ranging from 0.01 to 0.09 and a specific abrasion amount between 1.0 to 4.0 × 10^-8 mm²/kg. This sliding member is crafted through a sintering process that utilizes 70 to 93% amorphous carbon powder, alongside boride metals from groups IVa, Va, and VIa of the periodic table, and natural or Kish graphite.
Another significant patent is the "Sliding member of graphite-boron carbides," which showcases a friction coefficient between 0.01 and 0.13, with specific abrasion values of 10^-7 to 10^-9 mm²/kg. This invention is produced by mixing and sintering powdery carbon and boron carbide, ensuring uniform dispersion to optimize performance at high temperatures, specifically around 300°C.
Career Highlights
Throughout his career, Tsuyoshi Hagio has worked with prominent organizations, including the Agency of Industrial Science and Technology and Oiles Industry Co., Ltd. His roles in these reputable companies have significantly influenced his research directions, leading to the successful patents that he is known for today.
Collaborations
Hagio has collaborated with notable coworkers, including Kazuo Kobayashi and Ichitaro Ogawa, enriching his research endeavors with diverse expertise. These collaborative efforts have undoubtedly contributed to the advancement of innovative materials that serve various industrial needs.
Conclusion
In summary, Tsuyoshi Hagio stands out as a leading inventor in the realm of high-temperature-resistant materials, with a focus on sliding members that enhance industrial performance. His patents exemplify his innovative spirit and dedication to advancing technology in extreme environments, establishing a solid foundation for future developments in material sciences.
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