64results about How to "Improve magnetic strength" patented technology

Provided is a magnetic toner which exhibits a high degree of blackness and high tinting strength, and in which scraping of a toner carrying member surface by the magnetic toner is not caused, and image defects such as fogging and tailing are suppressed. A magnetic toner comprising a magnetic toner particle that contains a binder resin and a magnetic iron oxide particle, wherein, the number-average particle diameter of the magnetic iron oxide particle ranges from 0.05 μm to 0.15 μm, and a relationship between the number-average particle diameter (μm) of the magnetic iron oxide particle and the specific surface area (m2 / g) of the magnetic iron oxide particle satisfies Expression (1) below.[Number−average particle diameter]×[specific surface area]≦1.10  (1).

A magnetic separator for a mineral feed comprising, a rotatable drum having an attraction surface, an inlet for receiving a stream of the mineral feed and directing it past the rotating drum, means for generating a magnetic field to attract magnetic components in the feed to the attraction surface, a first zone for take off of non-magnetic components of the mineral feed, and a second zone for take off of the magnetic components, wherein the magnetic field generating means are adapted to subject the magnetic components to at least one reversal of polarity of the magnetic field as the drum rotates.

The refrigeration performance in a range from 3 to 10 K can be improved in comparison with conventional metal based magnetic regenerator materials.The refrigerator is provided with a regenerator utilizing at least one magnetic material including a rare earth element and sulfur as the regenerator material.

An assembly for loading and conveying ferrous metal articles including a magnet having north and south poles, an axis between the north and south poles, the poles forming an annular belt support; a powered conveyor belt extending over the belt support for rotating the magnet, the magnet being segmented along the polar axis, a first polar axis segment being a magnet mounting plate, a plurality of second polar axis segments being sub-magnets, each such sub-magnet overlying or underlying the magnet mounting plate having north and south poles, and having a polar axis, and a third polar axis segment being a sheath extending annularly about the magnet's first and second polar axis segments, the sheath having a radially outer surface forming the magnet's annular belt support.

Finger grip and connector for portable electronics, in particular cell phones. The grip includes a metallic ring. The ring adheres to the back of a cell phone, or case. The grip includes a corresponding ring of magnets for a grip assembly to magnetically attach to the metal ring adhered to the cell phone. The grip design provides infinite rotation of the grip assembly relative to the phone for holding the phone in various positions. The grip provides a support for viewing content on the electronic device at different angles and orientations. The grip provides a means of magnetically attaching a cell phone to metallic surfaces, chargers, mounts, and other devices. The grip can allow for wireless charging, which is optimized and enabled by a relatively large open inner diameter of the metallic ring and corresponding magnets. The grip can retract to be less than 3 millimeters in total thickness.

The invention discloses a non-contact electromagnetic coupling cylindrical liquid pump system in the technical field of medical equipment. The non-contact electromagnetic coupling cylindrical liquid pump system comprises a pump body; the pump body comprises a first pumped liquid flowing cavity, a magnetic control cavity and a second pumped liquid flowing cavity which are sequentially connected; at least four groups of coil assemblies are arranged at equal intervals outside the magnetic control cavity along the length direction of a cavity body of the magnetic control cavity; a magnetic rotor is arranged in the magnetic control cavity; the magnetic rotor can move under the control of the coil assemblies; and elastic thin films are respectively arranged in the first pumped liquid flowing cavity and the second pumped liquid flowing cavity. The non-contact electromagnetic coupling cylindrical liquid pump system directly utilizes electromagnetic coupling, abandons a motor and a mechanical transmission structure and avoids mechanical loss and heat production. Meanwhile, the non-contact electromagnetic coupling cylindrical liquid pump system has the advantage of overload resistance of a stepping motor and commonly can resist to 2 to 3 times of overload and possibility that coils are overloaded to generate heat and even be burnt down is greatly reduced.