Company Filing History:
Years Active: 1990-1991
Title: Hiromi Unoki: Innovator in Superconductive Oxides
Introduction
Hiromi Unoki is a notable inventor based in Tsukuba, Japan. He has made significant contributions to the field of superconductive materials, particularly through his innovative methods for preparing single crystals of lanthanum cuprate.
Latest Patents
Unoki holds 2 patents, with his latest focusing on the method for preparing a single crystal of lanthanum cuprate (La₂CuO₄). This compound is recognized for its superconductive properties. The preparation process involves determining the phase diagram of the La₂O₃-CuO system using differential thermal analysis and X-ray diffractometry. A mixture of cupric oxide and either lanthanum oxide or lanthanum carbonate is combined in a specific molar ratio. The mixture is then heated until molten, and as it cools slowly, nuclei of La₂CuO₄ precipitate, allowing for the growth of large-scale single crystals.
Career Highlights
Unoki is affiliated with the Agency of Industrial Science and Technology, where he continues to advance research in superconductive materials. His work has been instrumental in enhancing the understanding and application of lanthanum cuprate in various technological fields.
Collaborations
Unoki collaborates with Kunihiko Oka, who is also a prominent figure in the field. Their partnership has contributed to the advancement of research in superconductive materials.
Conclusion
Hiromi Unoki's innovative methods and research in superconductive oxides have positioned him as a key inventor in this specialized field. His contributions continue to influence advancements in material science and technology.