Title:
POWER GENERATION ELEMENT, MAGNETIC SENSOR USING SAME, ENCODER, AND MOTOR
Document Type and Number:
WIPO Patent Application WO/2021/200361
Kind Code:
A1
Abstract:
This invention comprises a magnetic body that exhibits a large Barkhausen effect, a power generation coil disposed so as to be wrapped around the magnetic body, and a soft magnetic body that is formed on both ends of the magnetic body so as to be in contact with the magnetic body and press the magnetic body. As a result, this invention enhances the uniformity of the magnetic flux density of the magnetic body and stably produces a large Barkhausen effect such that a highly stable power generation element is obtained.
Inventors:
NAKAMURA YOSHITOMO (JP)
YOSHIDA SHINICHIRO (JP)
TORII HISANORI (JP)
NIMURA MASANORI (JP)
UEDA SHIZUKA (JP)
KUBO YUJI (JP)
NOGUCHI TAKUYA (JP)
YOKOYAMA AKIRA (JP)
MUSHA TAKESHI (JP)
MIYAMOTO YOSHINORI (JP)
YOSHIDA SHINICHIRO (JP)
TORII HISANORI (JP)
NIMURA MASANORI (JP)
UEDA SHIZUKA (JP)
KUBO YUJI (JP)
NOGUCHI TAKUYA (JP)
YOKOYAMA AKIRA (JP)
MUSHA TAKESHI (JP)
MIYAMOTO YOSHINORI (JP)
Application Number:
PCT/JP2021/011846
Publication Date:
October 07, 2021
Filing Date:
March 23, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01R33/02; G01D5/245; H03K3/45
Domestic Patent References:
| WO2013094042A1 | 2013-06-27 | |||
| WO2016170648A1 | 2016-10-27 |
Foreign References:
| JP6647478B1 | 2020-02-14 | |||
| JPS5450373A | 1979-04-20 | |||
| JP2016208817A | 2016-12-08 | |||
| JPH11195964A | 1999-07-21 | |||
| JP2014171044A | 2014-09-18 | |||
| JP2006073974A | 2006-03-16 |
Attorney, Agent or Firm:
PALMO PATENT FIRM, P.C. (JP)
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