Company Filing History:
Years Active: 1999
Title: Tsuneyuki Hasegawa: Innovator in Bearing Technology
Introduction
Tsuneyuki Hasegawa is a notable inventor based in Odawara, Japan. He has made significant contributions to the field of bearing technology, particularly in applications related to magnetic disk devices. His innovative approach addresses critical issues that arise from the operation of bearings in these devices.
Latest Patents
Hasegawa holds a patent for a "Bearing and manufacturing method of bearing, and magnetic disk device." This invention tackles the problem of gas contaminants generated from the grease of bearings, which can lead to stiction and magnetic head crashes in magnetic disk devices. The patent outlines a method of heat treating the grease to reduce slow evaporating hydrocarbon compounds, ensuring that the grease can effectively lubricate the bearings. The heat treatment is performed at a temperature range of 60 to 100 degrees Celsius and at a pressure of 10^-3 to 10^-8 torr.
Career Highlights
Hasegawa is associated with Hitachi, Ltd., a leading company in technology and innovation. His work has been instrumental in enhancing the reliability and performance of magnetic disk devices through improved bearing technology.
Collaborations
Throughout his career, Hasegawa has collaborated with esteemed colleagues such as Masaki Otsuka and Iwao Matsuyama. These collaborations have contributed to the advancement of technology in their respective fields.
Conclusion
Tsuneyuki Hasegawa's contributions to bearing technology have had a significant impact on the performance of magnetic disk devices. His innovative methods and collaborations continue to influence advancements in this critical area of technology.