Location History:
- Hirakata, JA (1976)
- Hirakati, JA (1977)
- Hirakata, JP (1988 - 2006)
- Hirataka, JP (2006)
Company Filing History:
6 out of 8,777 
2 out of 832,718 Years Active: 1976-2006
Title: Kazufumi Ushijima: Innovator in Load Detection Technologies
Introduction
Kazufumi Ushijima is an esteemed inventor based in Hirakata, Japan, known for his innovative contributions to load detection technologies. With a remarkable portfolio of eight patents, Ushijima has significantly advanced how load measurements are approached in various applications.
Latest Patents
Among his latest innovations are a load detecting system and an automatic washing machine equipped with this system. The load detecting system involves a core made of magnetostrictive material, complemented by a coil strategically positioned in its vicinity. This configuration is integral to a load detecting circuit that gauges the magnitude of the load acting on the core. The system features an exciting circuit that transmits alternating current through the coil, a pulse current generating circuit for preparation, and a change-over circuit that alternates between circuits to manage the load detection adeptly. A microcomputer processes the impedance variation during current passage, determining the load's magnitude on the magnetostrictive element. This innovative approach has broad applications, particularly in enhancing the efficiency of automatic washing machines.
Career Highlights
Kazufumi Ushijima has had a distinguished career, having worked at notable companies such as Sanyo Electric Co., Ltd. His role at Sanyo has been pivotal in his development as an inventor, allowing him to apply and refine his ideas in a practical context.
Collaborations
Throughout his career, Ushijima has collaborated with esteemed colleagues, including Kazuyoshi Tsukamoto and Yoshiaki Sakauchi. These partnerships have fostered a creative environment conducive to innovation, enabling the development of impactful technologies in the field of load detection.
Conclusion
Kazufumi Ushijima stands out as a prominent figure in the realm of load detection innovations. His latest patents reflect a commitment to advancing technology, particularly in enhancing automated systems such as washing machines. As he continues his work, Ushijima's contributions will undoubtedly inspire future advancements in the industry.