Location History:
- Kanagawa-ken, JP (2015)
- Yokohama, JP (2004 - 2017)
- Kanagawa, JP (2014 - 2023)
- Yokohama Kanagawa, JP (2021 - 2023)
Company Filing History:
9 out of 52,735 
6 out of 304 
4 out of 1,075 
Years Active: 2004-2023
Introduction
Akira Shimamura is a prolific inventor based in Yokohama, Japan, holding a remarkable total of 18 patents. His work primarily focuses on advancements in electrical engineering, specifically in the development of innovative gas circuit breakers. These inventions aim to enhance the safety and efficiency of electrical systems.
Latest Patents
Among his notable inventions are two latest patents related to gas circuit breaker technology. The first patent outlines a gas circuit breaker that includes a sealed container enclosing arc-extinguishing gas. This device features a first and a second fixed contactor portion, along with a movable contactor that conducts and interrupts current flow. During the current breaking process, an arc is generated, which is extinguished by the released gas. The design includes a gas chamber that accumulates unnecessary gas, with the sealed container formed from two hollow truncated cone portions joined by a cylindrical element.
The second patent presents another variation of a gas circuit breaker which has a first arc contactor connected to a lead-out conductor and a cylindrical guide portion on the opposing lead-out conductor side. This invention innovatively incorporates a trigger electrode, which moves between the first arc contactor and the guide, facilitating arc ignition during the current-breaking action. Additionally, the design includes a compression chamber and an insulation nozzle that directs the arc-extinguishing gas towards the arc at the first arc contactor, enhancing its efficiency.
Career Highlights
Akira Shimamura has been associated with prominent companies such as Toshiba Corporation and Toshiba Energy Systems & Solutions Corporation. His work at these organizations has significantly contributed to the development of advanced electrical solutions, thereby shaping the future of energy systems.
Collaborations
Throughout his career, Shimamura has collaborated with other notable professionals within the field, including Toshiyuki Uchii and Takashi Arai. These collaborations have helped foster innovation and the development of new ideas in disruptive technologies.
Conclusion
Akira Shimamura's inventions, particularly in gas circuit breaker technology, exemplify his commitment to enhancing safety and performance in electrical systems. With 18 patents to his name, his contributions have left a lasting impact on the industry, paving the way for future advancements in electrical engineering. His collaborations with other professionals in the field further highlight the innovative spirit that drives his work.