Fumio Washizu

Title: Fumio Washizu: Innovator in Coated Super-Hard Alloy Technology

Introduction

Fumio Washizu is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of materials science, particularly in the development of coated super-hard alloy articles. With a total of 2 patents to his name, Washizu's work has had a considerable impact on cutting tools and wear-resistant mechanical parts.

Latest Patents

Washizu's latest patents focus on a novel process for the production of coated super-hard alloy articles. These inventions involve a cutting tool or a wear-resistant mechanical part that comprises a substrate made of WC, Co, TiC, and TaC. The design may include an inner coating layer of TiC, TiN, or TiCN. An intermediate layer of titanium oxycarbide is formed on the surface of the substrate or the inner coating layer through a reaction at temperatures ranging from 800 to 1,200 degrees Celsius. This reaction utilizes a halide of titanium, hydrogen, and carbon monoxide or carbon dioxide, or a mixture thereof. The outer coating layer consists of aluminum oxide, which is applied to the outer surface of the intermediate layer. The thicknesses of the inner layer, intermediate layer, and outer coating layer are meticulously controlled, ranging from 0.5 to 20 microns for the inner and intermediate layers, and 0.5 to 10 microns for the outer layer.

Career Highlights

Fumio Washizu is associated with Mitsubishi Kinzoku Kabushiki Kaisha, where he has been instrumental in advancing the company's technological capabilities. His expertise in materials science has positioned him as a key figure in the development of innovative products that enhance performance and durability.

Collaborations

Washizu has collaborated with notable colleagues, including Yasuo Suzuki and Noribumi Kikuchi. Their combined efforts have contributed to the successful development of advanced materials and technologies in their field.

Conclusion

Fumio Washizu's contributions to the field of coated super-hard alloys exemplify the importance of innovation in materials science. His patents reflect a commitment to enhancing the performance of cutting tools and mechanical parts, ensuring that his work will continue to influence the industry for years to come.