Company Filing History:
Years Active: 2004
Title: Innovations of Takashi Funawatari
Introduction
Takashi Funawatari is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of protective relay apparatuses. With a total of two patents to his name, Funawatari's work focuses on enhancing the compatibility and efficiency of current transformers.
Latest Patents
Funawatari's latest patents revolve around a protective relay apparatus that achieves compatibility with current transformers having various rated current ratios. He has developed a formula that establishes the relationship between errors arising in a transformer input circuit and the detectable ranges set as input circuit values. This innovation allows for optimal settings that eliminate the need for a gain control section, thereby reducing the number of components, mounting area, and overall costs. The derived arithmetic expressions represent the relationship among errors in the transformer input circuit, the instrumentation ranges, and detectable errors. By optimally setting the detectable ranges, Funawatari's configuration is compatible with current transformers of different rated current ratios.
Career Highlights
Funawatari is associated with Hitachi, Ltd., a leading company in technology and engineering. His work has contributed to advancements in electrical systems, showcasing his expertise in the field.
Collaborations
One of his notable coworkers is Yoshiyasu Watanabe, with whom he has collaborated on various projects.
Conclusion
Takashi Funawatari's innovations in protective relay apparatuses demonstrate his commitment to improving electrical engineering solutions. His patents reflect a deep understanding of transformer technology and its applications.