Fuji Electrochemical Co., Ltd.

Fdk Corporation

Kazuo Matsui

Takaaki Yasumura

Hirofumi Nakano

Masakuni Kamiya

Akihide Izumi

Mitsuo Murakoshi

Shinji Nittono

Yoshio Matsuo

Yoshiteru Nakagawa

Kuniyoshi Nishida

Teruo Kiyomiya

Chihiro Murata

Yasutoshi Mizuno

Zinc anode can of a battery, method of manufacture thereof, and

An improved permanent magnet composition comprising 22 to 28 wt % R, 5 to 16 wt % iron, 0.2 to 6.5 wt % copper, 0.1 to 6 wt % manganese, 0.5 to 6 wt % A, 0.1 to 2 wt % B and the balance cobalt, in which R is at least one of rare earth elements including yttrium, A is at least one of zinc and zirconium and B is at least one element selected from the group of aluminum, bismath and thallium.

Permanent magnet composition

An apparatus for packing a permanent magnet powder wherein a solenoid coil is provided near the opening of a cylindrical molding space of a mold in such a manner that the direction of the central axis of the solenoid coil substantially coincides with the central axis of the molding space, and an alternating current magnetic field is applied, so that a permanent magnet powder above the opening is packed into the molding space. A magnetic pole may be provided in the center of the solenoid coil. The method of the present invention can be applied to not only a powder for a sintered magnet and cast magnet, but also a powder for a bonded magnet.

Apparatus for packing permanent magnet powder

Growing community of inventors

Toyohashi, Japan

Kazuo Matsui