Taiho Industries Co., Ltd.

Yusuke Matsumura

Kazuya Shimizu

Kousuke Okura

The present invention provides a magnetic fluid which comprises a magnetic fluid comprising magnetic fine particles coated with a fatty acid in an oily medium, and at least one selected from the group consisting of sulfonate surfactants and animal waxes, has an excellent stability even when used at a high temperature and high humidity and having the fluidity maintained for a long period, and is suitable for use particularly in a severe environment as a bearing, magnetic damper, magnetic seal, specific gravity separator, liquid damper, switch, acceleration sensor, tilt sensor, or heat exchanger for heat pipe or heat sink, and further a magnetic fluid-stabilizing additive allowing the magnetic fluid to have an excellent stability for a long period while maintaining the magnetic fluid's own performance even when used at a high temperature and high humidity for a long period, and a method of stabilizing the magnetic fluid.

Growing community of inventors

Chigasaki, Japan

Yusuke Matsumura