Location History:
- Hitachi, JP (1991 - 2001)
- Hitachioota, JP (2001)
- Kyoto, JP (2019)
Company Filing History:
Years Active: 1991-2019
Title: Toshiya Doi: Innovator in Superconducting Technologies
Introduction
Toshiya Doi is a prominent inventor based in Hitachi, Japan. He has made significant contributions to the field of superconducting materials, holding a total of 11 patents. His work focuses on developing advanced superconducting wires and methods that enhance performance and reduce costs.
Latest Patents
One of Doi's latest patents is for a magnesium diboride superconducting thin-film wire and the method for producing it. This invention aims to provide an MgB superconducting thin-film wire that exhibits excellent J characteristics even under a 20 K magnetic field. The MgB thin film is designed with a microtexture that allows MgB columnar crystal grains to stand densely together on the surface of a long substrate, achieving a transition temperature of 30 K or higher. Additionally, in the grain boundary regions of the MgB columnar crystal grains, a predetermined transition metal element is dispersed and segregated, enhancing the wire's performance.
Another notable patent is for an oxide superconducting wire and the method of manufacturing it. This invention provides superconductors that can operate at temperatures achievable with liquid nitrogen and carry current with a high critical current density in a magnetic field. The superconducting wire combines a metallic body of a cubic aggregate structure with an oxide superconducting substance. This innovation allows for the creation of superconducting apparatuses that are more cost-effective than conventional options while maintaining high performance.
Career Highlights
Toshiya Doi is associated with Hitachi, Ltd., where he continues to push the boundaries of superconducting technology. His work has been instrumental in advancing the field and making superconducting materials more accessible for various applications.
Collaborations
Doi has collaborated with notable colleagues such as Tomoichi Kamo and Kazuhide Tanaka. Their combined expertise has contributed to the successful development of innovative superconducting technologies.
Conclusion
Toshiya Doi's contributions to superconducting materials and technologies have positioned him as a key figure in the field. His patents reflect a commitment to innovation and excellence, paving the way for future advancements in superconducting applications.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.