Invention Grant
- Patent Title: Permanent magnet member and method of producing same
- Patent Title (中): 永磁体及其制造方法
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Application No.: US254877Application Date: 1994-06-06
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Publication No.: US5488341APublication Date: 1996-01-30
- Inventor: Mikio Yamamoto , Keitaro Yamashita , Katsunobu Kiriyama
- Applicant: Mikio Yamamoto , Keitaro Yamashita , Katsunobu Kiriyama
- Applicant Address: JPX
- Assignee: Hitachi Metals, Ltd.
- Current Assignee: Hitachi Metals, Ltd.
- Current Assignee Address: JPX
- Priority: JPX5-137153 19930608
- Main IPC: B03C1/12
- IPC: B03C1/12 ; G03G15/09 ; G03G21/00 ; H01F7/02 ; H01F41/02 ; H01F3/00
Abstract:
A permanent magnet member composed of an integral sintered body made of a ferrite magnet material, the integral sintered body including a cylindrical center portion and shaft portions formed at the opposite ends of the cylindrical center portion and each having a smaller diameter than that of the cylindrical center portion, the cylindrical center portion being provided with a plurality of magnetic poles extending axially and arranged circumferentially on an outer surface of the cylindrical center portion.
Public/Granted literature
- US4878430A Detonator pellet Public/Granted day:1989-11-07
Information query
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