Keiji Kawajiri

Title: The Innovations of Keiji Kawajiri

Introduction

Keiji Kawajiri is a notable inventor based in Hokkaido, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of varistors and heat conducting materials. With a total of three patents to his name, Kawajiri's work reflects a commitment to advancing technology and improving product performance.

Latest Patents

One of Kawajiri's latest patents is for a varistor and method for manufacturing the same. This varistor includes a sintered body, an internal electrode, an insulating layer, and an external electrode. The internal electrode is strategically placed within the sintered body, while the insulating layer, which contains ZnSiO, covers part of the sintered body. The external electrode is electrically connected to the internal electrode and is designed to cover both the sintered body and part of the insulating layer. Notably, the insulating layer has a region in contact with the external electrode that has a greater average thickness than the region that is not in contact.

Another significant patent is for a heat conducting sheet. This innovation consists of a first sheet with heat conductivity, a bonding layer on part of the first sheet's face, and a backing separator that covers the entire first face. The backing separator has slight adhesion, allowing the first sheet to stick to it. Importantly, the bonding force between the first sheet and the bonding layer exceeds that between the backing separator and the bonding layer.

Career Highlights

Kawajiri has worked with prominent companies in the industry, including Panasonic Intellectual Property Management Co., Ltd. and Matsushita Electric Industrial Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.

Collaborations

Throughout his career, Kawajiri has collaborated with talented individuals such as Tomohisa Okimoto and Eiichi Koga. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Keiji Kawajiri's contributions to the field of electrical engineering through his patents and collaborations highlight his innovative spirit and dedication to advancing technology. His work continues to influence the industry and inspire future inventors.