Iwao Kawamata

Title: Iwao Kawamata: Innovator in Voltage Nonlinear Resistors

Introduction

Iwao Kawamata is a distinguished inventor based in Tokyo, Japan. He is known for his significant contributions to the field of electrical engineering, particularly in the development of voltage nonlinear resistors. His innovative work has led to advancements in lightning arresters, enhancing their efficiency and reliability.

Latest Patents

Kawamata holds a patent for a voltage nonlinear resistor, which is crucial for lightning arresters. The patent describes a voltage nonlinear resistor made from a sintered body that primarily consists of zinc oxide grains, along with spinel grains containing zinc and antimony. Additionally, it includes a bismuth oxide phase that incorporates alkali metals, specifically potassium and sodium, within a defined ratio. This design ensures excellent voltage nonlinearity and extended service life, making it an essential component for lightning protection systems.

Career Highlights

Iwao Kawamata is currently employed at Mitsubishi Electric Corporation, where he continues to innovate and contribute to the field of electrical components. His work has not only advanced technology but has also provided practical solutions for various electrical applications.

Collaborations

Kawamata has collaborated with notable colleagues, including Tomoaki Kato and Yoshio Takada. Their combined expertise has fostered a productive environment for innovation and development within their projects.

Conclusion

Iwao Kawamata's contributions to the field of voltage nonlinear resistors exemplify his dedication to innovation in electrical engineering. His patented technology plays a vital role in enhancing the safety and efficiency of lightning arresters.