Company Filing History:
Years Active: 1984
Title: Fumio Matsumoto: Innovator in Electromagnetic Technology
Introduction
Fumio Matsumoto is a notable inventor based in Nagoya, Japan. He has made significant contributions to the field of electromagnetic technology, particularly with his innovative patent for an electromagnetic contact device. His work has implications for various electrical applications, enhancing the efficiency and reliability of electrical systems.
Latest Patents
Matsumoto holds a patent for an electromagnetic contact device that performs on-off operations for opening and closing an electrical path. This device is designed to prevent the hunting phenomenon between the two contact points during both the closure of a fixed contact point and a movable contact point, as well as when the voltage applied to the operating coil is lowered. The device features an operating coil that generates a predetermined energizing force in conjunction with a fixed iron core. A starting circuit rectifies a large capacity electric current from an AC power source when attracting a movable iron core, supplying the rectified current to the operating coil. Additionally, a holding circuit supplies the large capacity current from the AC power source to the operating coil by converting it to a small capacity current during the holding of the movable iron core. A change-over switch is included to change the energizing current supply source for the operating coil from the starting circuit to the holding circuit, exhibiting a hysteresis characteristic that ensures proper operation.
Career Highlights
Fumio Matsumoto is associated with Mitsubishi Electric Corporation, where he has been able to apply his innovative ideas in a practical setting. His work has contributed to advancements in electromagnetic devices, showcasing his expertise and commitment to innovation in the field.
Collaborations
Matsumoto has collaborated with notable coworkers such as Masayuki Yoshida and Shigeharu Otsuka. Their combined efforts have fostered a creative environment that encourages the development of groundbreaking technologies.
Conclusion
Fumio Matsumoto's contributions to electromagnetic technology through his innovative patent demonstrate his significant role as an inventor. His work continues to influence the field, paving the way for future advancements in electrical systems.