Shin-etsu Chemical Co., Ltd.

Shingo Hashimoto

Yuhito Doi

Dai Higuchi

There is provided a method for producing a permanent magnet magnetic circuit that makes it possible to stably attach a permanent magnet to a yoke and to use a general-purpose assembly jig or to reuse an existing assembly jig even when the size or shape of a magnet to be attached is changed. More specifically, there is provided a method for producing the circuit comprising a magnet or magnet unit and a yoke, the method comprising the steps of: fixing the magnet or magnet unit to an assembly jig through an electrically detachable adhesive; fixing the magnet or magnet unit fixed to the jig, to the yoke; and applying a voltage between the magnet or magnet unit and the assembly jig to detach the adhesive from the magnet or magnet unit to detach the adhesive from the jig so as to detach the magnet from the jig.

Method for producing permanent magnet magnetic circuit

A method of making a cylindrical magnetic circuit which is able to prevent deformation of a cylindrical yoke for holding two or more magnets without increasing the thickness of the yoke more than required, A method of producing a cylindrical magnetic circuit () for generating a magnetic field in a space inside of plural annularly placed magnets (), including: a cylindrical yoke () which is placed radially outside the magnets () and is fixed to the magnets directly or via an intermediate member or substance; and at least one nonmagnetic member () existing between pairs of circumferentially adjacent magnets.

Method of producing a cylindrical magnetic circuit

A cylindrical magnetic circuit which is able to prevent deformation of a cylindrical yoke for holding two or more magnets without increasing the thickness of the yoke more than required, and a method of producing such a circuit. A cylindrical magnetic circuit () for generating a magnetic field in a space inside of plural annularly placed magnets (), including: a cylindrical yoke () which is placed radially outside the magnets () and is fixed to the magnets directly or via an intermediate member or substance; and at least one nonmagnetic memberexisting between pairs of circumferentially adjacent magnets, and a method for producing the cylindrical magnetic circuit ().

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Echizen, Japan

Shingo Hashimoto