Company Filing History:
2 out of 128 
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1 out of 832,843 Years Active: 2003-2004
Title: Setsuko Tajima: Innovator in Superconductive Materials
Introduction
Setsuko Tajima is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of superconductive materials, holding a total of 4 patents. His work focuses on the development of innovative methods for producing superconductive materials that exhibit exceptional properties.
Latest Patents
Tajima's latest patents include the "Mgb2 single crystal and its production method" and "superconductive material containing mgb2 single crystal." These inventions aim to establish effective means for manufacturing MgB single crystals and to provide useful superconductive materials, such as wire rods, that leverage the anisotropic superconductive properties of these crystals. The production method involves holding a mixed raw material of magnesium and boron at high temperatures (1300 to 1700 °C) and under high pressure (3 to 6 GPa) to facilitate the growth of MgB single crystals. These crystals demonstrate remarkable features, including an irreversible magnetic field strength that reaches at least 95% of a second magnetic field strength, allowing for the production of high-quality superconductive materials.
Another notable patent is the "Oxide superconductor and method for producing same." This invention describes an Hg- or Nd-based oxide superconductor that includes barium as a constituent element. It is designed to maintain high superconducting characteristics over time, with a carbon impurity level not exceeding 2.0 atomic %. The production process involves using BaO with a low carbon impurity content and processing the starting materials in a controlled dry atmosphere.
Career Highlights
Throughout his career, Tajima has worked with esteemed organizations, including the International Superconductivity Technology Center. His contributions to the field have been recognized and have significantly advanced the understanding and application of superconductive materials.
Collaborations
Tajima has collaborated with notable colleagues, including Ayako Yamamoto and Wei-Zhi Hu. These partnerships have fostered innovation and have played a crucial role in the development of his groundbreaking inventions.
Conclusion
Setsuko Tajima's work in superconductive materials exemplifies the spirit of innovation and dedication to advancing technology. His patents reflect a commitment to enhancing the properties and production methods of superconductive materials, paving the way for future advancements in the field.