Company Filing History:
Years Active: 2018-2022
Title: Sunao Shimizu: Innovator in Sintered Bearing Technology
Introduction
Sunao Shimizu is a notable inventor based in Aichi, Japan. He has made significant contributions to the field of engineering, particularly in the development of sintered bearings. With a total of 2 patents to his name, Shimizu's work focuses on enhancing the performance and cost-effectiveness of bearing materials.
Latest Patents
One of Shimizu's latest patents is for a sintered bearing and method for manufacturing the same. This innovation aims to reduce costs by minimizing the usage of copper while maintaining excellent initial running-in characteristics and quietness. The process involves loading raw material powders, including iron powder, flat copper powder, low-melting point metal powder, and graphite into a mold. A green compact is formed with the flat copper powder adhering to the molding surface. Sintering is then carried out without allowing the iron in the green compact to react with carbon, resulting in an iron structure composed of a ferrite phase. This method produces a sintered bearing that features a base part with a uniform copper content and a surface layer with a higher copper content.
Career Highlights
Sunao Shimizu is currently associated with NTN Corporation, where he continues to innovate in the field of bearing technology. His work has been instrumental in advancing the performance and durability of sintered bearings, making them more efficient and cost-effective for various applications.
Collaborations
Shimizu has collaborated with several talented individuals in his field, including Yoshinori Ito and Eiichirou Shimazu. These collaborations have contributed to the successful development of his patented technologies.
Conclusion
Sunao Shimizu's contributions to the field of sintered bearings demonstrate his commitment to innovation and engineering excellence. His patents reflect a deep understanding of material science and manufacturing processes, positioning him as a key figure in the industry.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.