For a reference of my level of knowledge, I have taken an undergrad electromagnetism class, and it wasn't pretty but I passed. I have a real interest in this so I don't mind doing more research.
If electromagnets can be used for the magnetic fields they generate, what if the use is a "directed" magnetic field? From what I understand if you generate a field big enough, the flux density will be high enough in planned points to have the desired strength and impart the desired force on an object.
Is it possible to create a directed magnetic field so as to concentrate the flux at one pole? Basically creating a focused point of magnetic flux, without using other magnetic fields? The point of not using other magnetic fields, is to prevent the effects of the field interacting with other electronics around it.
Below is a VERY ROUGH picture of what I am referencing. The modified field on the right only has half of the flux drawn.