Location History:
- Yokohama, JP (1978 - 1980)
- Hyogo-ken, JP (1999)
Company Filing History:
3 out of 9 
1 out of 23 
1 out of 75 Years Active: 1978-1999
Title: Masaya Maruo: Innovator in Circuit Protection and Fuse Technology
Introduction
Masaya Maruo is a notable inventor based in Yokohama, Japan. He has made significant contributions to the fields of circuit protection and fuse technology. With a total of 5 patents to his name, Maruo's work reflects a commitment to innovation and practical solutions in electrical engineering.
Latest Patents
One of Maruo's latest patents is a resettable overcurrent protective circuit. This circuit includes a combination of N-type and P-type depletion mode FETs, along with a switch. The design allows for effective overcurrent protection by connecting the sources of both FETs and utilizing resistors to manage their gates. The circuit's configuration ensures that it can handle positive and negative external terminals efficiently.
Another significant patent is for a fusible element used in fuse construction. This fusible element is crafted from a heat-conductive metal or alloy and features regions of reduced cross-sectional area. These reduced regions are strategically placed to optimize the performance of the fusible elements, enhancing their reliability and effectiveness in various applications.
Career Highlights
Throughout his career, Masaya Maruo has worked with reputable companies, including San-o Industrial Corporation and Soc Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in electrical safety and efficiency.
Collaborations
Maruo has collaborated with notable colleagues such as Hiroo Arikawa and Akira Taniguchi. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.
Conclusion
Masaya Maruo's contributions to circuit protection and fuse technology demonstrate his innovative spirit and dedication to improving electrical safety. His patents reflect a deep understanding of engineering principles and a commitment to practical solutions. Maruo's work continues to influence the industry and inspire future innovations.