Location History:
- Itami, JP (2011 - 2019)
- Hyogo, JP (2020)
- Osaka, JP (2021)
- Toyama, JP (2020 - 2022)
Company Filing History:
4 out of 10,264 
3 out of 18 
2 out of 2 Years Active: 2011-2022
Title: **Katsuhito Oshima: Innovator in Concrete Technology and High-Strength Steel Wire**
Introduction
Katsuhito Oshima, based in Itami, Japan, is a notable inventor recognized for his contributions to the field of concrete structures and high-strength steel wire. With a portfolio of six patents, Oshima has established himself as a key player in innovative construction materials and techniques.
Latest Patents
Among his recent patents, Oshima has developed a unique **concrete structure** that comprises a first concrete member and a second concrete member connected by a sheath. This innovative structure incorporates a tension part subjected to tensile force, which includes a stranded wire part encased in a cover, ensuring durability and strength. Notably, this design creates a space between the sheath and tension part that is not filled with grout material, potentially enhancing the structural integrity over time.
Another significant patent involves a **high-strength PC steel wire** characterized by its specific chemical composition, which offers exceptional tensile strength ranging from 2000 to 2400 MPa. This steel wire features a microstructure with a predominant pearlite structure and is engineered to resist delayed fracture, making it an ideal choice for demanding construction applications. The method of production is noted for its simplicity, facilitating broader adoption in the industry.
Career Highlights
Katsuhito Oshima has worked with esteemed companies, including **Sumitomo Electric Industries, Limited** and **Sumitomo Steel Wire Corporation**. His experience in these reputable organizations has undoubtedly contributed to the depth of knowledge he applies in his inventive processes.
Collaborations
Throughout his career, Oshima has collaborated with fellow inventors such as **Masato Yamada** and **Shuichi Tanaka**, leveraging their collective expertise to push the boundaries of innovation in engineering and material science. These collaborations have been instrumental in refining his ideas and enhancing the practical applications of his inventions.
Conclusion
Katsuhito Oshima stands out as a prominent inventor in Japan, with a strong focus on advancing concrete technology and high-strength steel wire. His innovative ideas and practical contributions continue to influence the construction industry, signaling a bright future for his ongoing research and developments in materials engineering.