Company Filing History:
Years Active: 2019-2020
Title: Innovations of Tomoe Obata in Sintered Bearings
Introduction
Tomoe Obata is a notable inventor based in Niigata, Japan. She has made significant contributions to the field of materials engineering, particularly in the development of advanced sintered bearings. With a total of two patents to her name, her work focuses on enhancing the performance and cost-effectiveness of these components.
Latest Patents
Obata's latest patents include an innovative iron-copper-based oil-impregnated sintered bearing and a method for manufacturing the same. This sintered bearing is designed to exhibit a reduced hard iron alloy phase, which results in excellent wear resistance and cost performance under low-revolution and high-load conditions. The composition of the sintered bearing includes copper (Cu) ranging from 10 to 55% by mass, tin (Sn) from 0.5 to 7% by mass, zinc (Zn) from 0 to 4% by mass, phosphorus (P) from 0 to 0.6% by mass, and carbon (C) from 0.5 to 4.5% by mass, with the remainder consisting of iron and inevitable impurities. The bearing features a free graphite area ratio of 5 to 35%, a copper phase area ratio of at least 30% on the bearing surface, a porosity of 16 to 25%, and a hardness of the iron alloy phase in the matrix ranging from Hv 65 to 200. The raw material powders used include at least one type of crystalline or flake graphite powder, each with an average particle size of 10 to 100 micrometers.
Career Highlights
Tomoe Obata is currently employed at Diamet Corporation, where she continues to innovate in the field of sintered materials. Her work has been instrumental in advancing the technology behind oil-impregnated bearings, which are crucial in various industrial applications.
Collaborations
Obata collaborates with esteemed colleagues such as Yoshinari Ishii and Yasuhiro Tsukada, contributing to a dynamic research environment that fosters innovation and development.
Conclusion
Tomoe Obata's contributions to the field of sintered bearings exemplify her commitment to innovation and excellence in materials engineering. Her patents reflect a deep understanding of material properties and their applications, making her a valuable asset to