Company Filing History:
3 out of 42,517 
2 out of 149 Years Active: 1997-1998
Title: Michihiro Aizawa: Innovator in Magnetic Fluid Bearings
Introduction
Michihiro Aizawa is a notable inventor based in Matsudo, Japan. He has made significant contributions to the field of engineering, particularly in the development of advanced bearing technologies. With a total of 3 patents to his name, Aizawa's work has had a considerable impact on various industries.
Latest Patents
Aizawa's latest patents include innovative designs for oil impregnated porous bearing units and magnetic fluid bearing units. The oil impregnated porous bearing unit features a unique arrangement where an oil impregnated porous bearing containing ferro-fluid is fixed in a non-magnetizable housing. A ring-shaped permanent magnet is strategically placed to ensure the ferro-fluid circulates effectively, utilizing magnetic attractive forces and capillary phenomena. This design enhances the performance and reliability of rotary shafts.
Another significant patent is the magnetic fluid bearing unit, which incorporates a bearing housing and a bearing member that uses magnetic fluid as a lubricating agent. This design prevents leakage and scattering of the magnetic fluid, ensuring high rotation accuracy in compact motors. The configuration of upper and lower permanent magnets helps to confine the magnetic fluid, making it suitable for a wide range of rotation speeds.
Career Highlights
Throughout his career, Michihiro Aizawa has worked with prominent companies such as Hitachi, Ltd. and Hitachi Powdered Metals Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in the field of engineering.
Collaborations
Aizawa has collaborated with notable colleagues, including Hidekazu Tokushima and Motohiro Miyasaka. These partnerships have fostered a creative environment that has led to the development of advanced technologies in bearing systems.
Conclusion
Michihiro Aizawa's contributions to the field of magnetic fluid bearings and oil impregnated porous bearings demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to enhancing the performance of mechanical systems, making him a significant figure in engineering.