Location History:
- Hachioji, JA (1977 - 1978)
- Tokyo, JP (1984 - 1985)
- Hachiohji, JP (1985)
- Hachioji, JP (1980 - 1989)
- Tokyo-to, JP (1998)
Company Filing History:
13 out of 2,916 
4 out of 52,722 
2 out of 10 Years Active: 1977-1998
Title: The Innovative Mind of Fumio Andow: A Look at His Patents and Contributions
Introduction: Fumio Andow, hailing from Hachioji, Japan, is a prominent inventor known for his significant contributions to the field of electrical engineering. With a remarkable portfolio of 17 patents, Andow's work has made a substantial impact within the industry, particularly in the development of protective relay systems.
Latest Patents: Among his most recent inventions, one stands out: the Protective Relay System Provided with Difference and Addition Filters. This innovative system employs digital calculation methods to enhance the accuracy and efficiency of differential relays. Through differential function calculation processing, it calculates a value using differences between multiple differential current data samples taken at various intervals. This process utilizes data obtained from both differential currents and respective terminal currents. Furthermore, it incorporates restraint data calculated from terminal current data, ensuring that the relay operates effectively under varying conditions. Comparison processing is crucial, as it evaluates the relationship between the differential function and the restraint function, ultimately controlling the trip operation of circuit breakers to prevent malfunctions.
Career Highlights: Fumio Andow has had an illustrious career, having spent significant time at reputable companies such as Tokyo Shibaura Denki and Toshiba Corporation. His work at these organizations has allowed him to develop groundbreaking technologies that enhance system reliability and safety in electrical applications.
Collaborations: Throughout his career, Andow has collaborated with esteemed colleagues, including Tetsuo Matsushima and Mitsuru Yamaura. These partnerships have fostered a creative environment that has led to several innovative solutions in the realm of relay technology.
Conclusion: Fumio Andow remains a key figure in the field of electrical engineering, revered for his contributions and innovations. With 17 patents to his name, his work continues to influence current technologies and sets the groundwork for future advancements in protective relay systems. His dedication to engineering excellence exemplifies the spirit of innovation essential for progress in this vital 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.