Katsu Ujita

Title: Katsu Ujita: Innovator in Lightning Protection Technology

Introduction

Katsu Ujita is a notable inventor based in Amagasaki, Japan. He has made significant contributions to the field of lightning protection technology, holding 2 patents that showcase his innovative approach to safety and efficiency.

Latest Patents

One of Ujita's latest inventions is the Lightning Arrester Monitor. This device consists of an oxygen gas sensor integrated into a lightning arrester that features a zinc-oxide-type element. The sensor measures the oxygen concentration of the element, which increases as degradation occurs. This innovation allows for easy assessment of the zinc-oxide-type element's degradation without the need for complicated electrical circuits to detect leakage current.

Another significant patent is a Protective Device designed to safeguard against abnormal voltage, such as that from lightning. This device includes an earthing cylindrical metallic casing, an electrode or conductive substrate aligned with the axis of the casing, and an insulating pipe positioned between the casing and the electrode. Additionally, it incorporates multiple non-linear resistors arranged within the insulating pipe, which are connected to mimic the potential distribution within the metallic casing.

Career Highlights

Katsu Ujita is currently employed at Mitsubishi Electric Corporation, where he continues to develop innovative solutions in electrical safety. His work has been instrumental in advancing technologies that protect infrastructure from lightning strikes and other electrical anomalies.

Collaborations

Ujita has collaborated with several talented individuals in his field, including Mitsumasa Imataki and Tsutomu Egashira. Their combined expertise has contributed to the successful development of Ujita's patented technologies.

Conclusion

Katsu Ujita's contributions to lightning protection technology reflect his commitment to innovation and safety. His patents demonstrate a forward-thinking approach that addresses critical challenges in electrical engineering.