Location History:
- Chofu, JP (1993 - 1994)
- Tokyo, JP (1993 - 1997)
Company Filing History:
6 out of 10,273 
3 out of 177 
1 out of 52,766 
Years Active: 1993-1997
Title: The Innovations of Takahiko Yamamoto
Introduction
Takahiko Yamamoto is a prominent inventor based in Chofu, Japan. He has made significant contributions to the field of superconductivity, holding a total of 7 patents. His work focuses on advanced technologies that enhance electrical systems and materials.
Latest Patents
One of his latest patents is the Superconducting Fault Current Limiter. This innovative device features multiple current limiting units designed for electric paths across various phases. Each unit consists of a superconducting coil that acts as a first current limiting element, formed in a non-inductive winding manner by connecting two superconducting coils in series. These coils are wound in opposite directions and are equal in size and number of turns. Additionally, a second superconducting coil functions as a current limiting element connected in parallel to the first, possessing a predetermined impedance value. The entire assembly is housed within a cryostat and separated by a magnetic shield member to ensure electromagnetic isolation between the phases.
Another notable patent is the In-situ Laser Ablation Method for Forming Oxide Superconducting Films. This method involves preparing an oxide superconducting thin film with a composition of Y-Ba-Cu-O using laser ablation. The process includes applying a laser beam to a target containing components of the oxide superconductive material, which scatters particles onto a substrate. Key parameters such as oxygen gas flow rate, pressure, substrate temperature, and laser energy density are meticulously controlled to achieve optimal film deposition.
Career Highlights
Throughout his career, Takahiko Yamamoto has worked with esteemed companies, including Sumitomo Electric Industries, Limited and The Tokyo Electric Power Company, Incorporated. His experience in these organizations has allowed him to develop and refine his innovative ideas in superconductivity.
Collaborations
Takahiko has collaborated with notable coworkers such as Tsukushi Hara and Noriyuki Yoshida. Their combined expertise has contributed to the advancement of technologies in their respective fields.
Conclusion
Takahiko Yamamoto's contributions to superconductivity and electrical systems are noteworthy. His innovative patents and collaborations reflect his dedication to advancing technology. His work continues to influence the field and inspire future innovations.