Location History:
- Chiyoda-ku, JP (2013)
- Tokyo, JP (2008 - 2024)
Company Filing History:
16 out of 15,844 
2 out of 21,351 
Years Active: 2008-2024
Title: Yuji Yoshitomo: Innovator in Gas Circuit Breaker Technology
Introduction
Yuji Yoshitomo, an accomplished inventor based in Tokyo, Japan, has made significant contributions to the field of electrical engineering. With a robust portfolio of 18 patents, Yoshitomo has focused primarily on advancements in gas circuit breakers and vacuum circuit breakers.
Latest Patents
One of his notable inventions is a gas circuit breaker that includes a cylindrical tank housing a stator, fixed inside the tank, and a mover that is judiciously positioned to interface with the stator. This mover operates between a closing position and a cutoff position, ensuring that it establishes contact with the stator in the closing position and breaks contact in the cutoff position. The design further includes a stator-side main contact, a resistance contact, and a system of springs and dashpots to enhance its efficiency.
In addition, he has developed a vacuum circuit breaker that functions effectively as a switch. This device is characterized by its dual electrode system, consisting of a stationary and a movable electrode. It employs a complex mechanism involving a movable shaft, coil springs, and a shock absorber to facilitate the movement and stabilization of the electrodes during operation.
Career Highlights
Yuji Yoshitomo has spent his career honing his expertise in electrical engineering while working at prestigious companies such as Mitsubishi Electric Corporation and Mitsubishi Denki Kabushiki Kaisha. His work at these organizations has allowed him to collaborate on innovative projects that push the boundaries of electrical device functionality and safety.
Collaborations
Throughout his career, Yoshitomo has collaborated with esteemed colleagues, including Daisuke Yoshida and Haruhiko Kohyama. These partnerships have fostered an environment of creativity and synergy, leading to breakthroughs in the technologies they have developed together.
Conclusion
In summary, Yuji Yoshitomo is a prominent figure in the realm of electrical engineering. Through his focused work on gas circuit breakers and vacuum circuit breakers, along with the support of his collaborators, he has greatly contributed to innovations that enhance electrical safety and efficiency. His inventions not only reflect his technical expertise but also his commitment to advancing the industry.
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.