Title:
MAGNETIC ENCODER
Document Type and Number:
WIPO Patent Application WO/2024/058040
Kind Code:
A1
Abstract:
This ring-shaped magnetic encoder is acquired by mixing a rare earth magnet powder and a resin, compressing the mixture to make an unheated body, and then heat-curing the resin included in the unheated body to make a heat-cured body, and comprises a magnetic track in which magnetic poles different from each other are magnetized at a prescribed pole pitch along the circumferential direction. When the thickness of the unheated body is denoted by T (mm), the maximum particle size of the rare earth magnet powder is denoted by G (μm), and a ratio R is defined as T/G, the ratio R is 6.67 or more, and the particle size of the rare earth magnet powder is 45-150 μm.
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Inventors:
KOMURA HARUHIRO (JP)
OKAWARA YU (JP)
OKAWARA YU (JP)
Application Number:
PCT/JP2023/032644
Publication Date:
March 21, 2024
Filing Date:
September 07, 2023
Export Citation:
Assignee:
MINEBEA MITSUMI INC (JP)
International Classes:
G01D5/245; H01F1/057; H01F7/02
Foreign References:
| JP2006013055A | 2006-01-12 | |||
| JP2015078889A | 2015-04-23 | |||
| JP2006269657A | 2006-10-05 | |||
| JP2000223337A | 2000-08-11 | |||
| JP2006278461A | 2006-10-12 | |||
| JP2011252826A | 2011-12-15 | |||
| JP2008051770A | 2008-03-06 |
Attorney, Agent or Firm:
TORANOMON INTELLECTUAL PROPERTY FIRM (JP)
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