公开(公告)号：US20170011765A1

公开(公告)日：2017-01-12

申请号：US15202674

申请日：2016-07-06

申请人： SHOWA DENKO K.K.

发明人： Satoru NAKAMURA ,  Taining HUNG ,  Evance KUO ,  Daizo ENDO

IPC分类号： G11B5/725 ,  G11B5/64 ,  G11B5/72

CPC分类号： G11B5/725 ,  G11B5/72

摘要： A magnetic recording medium 11 in which the outermost surface of a protective layer 3 on a lubricant layer 4 side contains carbon and nitrogen of 10 atomic % to 90 atomic %, the lubricant layer 4 is formed by being in contact with the outermost surface, and contains a compound A of Formula (1) and a compound B of Formula (2), a mass ratio (A/B) of the compound A with respect to the compound B is 0.2 to 0.3, the average molecular weights of the compounds A and B are 1,500 to 2,000 and 1,300 to 2,400, respectively, and the average film thickness is 0.5 nm to 2 nm. R1-C6H4OCH2CH(OH)CH2OCH2—R2-CH2OCH2CH(OH)CH2OH   (1) (R1 is an alkoxy group having 1 to 4 carbon atoms. R2 is —CF2O(CF2CF2O)x(CF2O)yCF2—.) HOCH2CF2CF2O(CF2CF2CF2O)mCF2CF2CH2OCH2CH(OH)CH2OH   (2)

公开(公告)号：US20200264243A1

公开(公告)日：2020-08-20

申请号：US16645639

申请日：2018-09-12

申请人： SHOWA DENKO K.K.

发明人： Daizo ENDO

IPC分类号： G01R33/02 ,  H01F41/32 ,  H01F10/08

摘要： A method of manufacturing a magnetic sensor includes: a soft magnetic material layer deposition process depositing a soft magnetic material layer (101) constituting a sensitive part (21) sensing a magnetic field on a substrate (10) by magnetron sputtering; and a sensitive part formation process forming the sensitive part (21) sensing the magnetic field in a portion of the soft magnetic material layer (101) where uniaxial magnetic anisotropy is provided by a magnetic field used for magnetron sputtering of the soft magnetic material layer (101).

公开(公告)号：US20220308128A1

公开(公告)日：2022-09-29

申请号：US17701968

申请日：2022-03-23

申请人： SHOWA DENKO K.K.

发明人： Daizo ENDO ,  Akira SAKAWAKI

IPC分类号： G01R33/06

摘要： A magnetic sensor 1 includes: a non-magnetic substrate 10; and a sensitive element 30 disposed on the substrate 10. The sensitive element 30 has a longitudinal direction and a transverse direction and has a uniaxial magnetic anisotropy in a direction intersecting the longitudinal direction. The sensitive element 30 is configured to sense a magnetic field by a magnetic impedance effect. The sensitive element 30 includes a soft magnetic material layer 101 made of an amorphous alloy based on Co and having a saturation magnetization of greater than or equal to 300 emu/cc and less than or equal to 650 emu/cc.

公开(公告)号：US20220018911A1

公开(公告)日：2022-01-20

申请号：US17312444

申请日：2019-10-21

申请人： SHOWA DENKO K.K.

发明人： Tatsunori SHINO ,  Daizo ENDO

IPC分类号： G01R33/06

摘要： A magnetic sensor (1) includes: a nonmagnetic substrate (10); and a sensitive element (31) including a plurality of soft magnetic layers (105) (lower soft magnetic layer (105a) and upper soft magnetic layer (105b)) laminated on or above the substrate (10) and a conductor layer (106) laminated between the plurality of soft magnetic layers (105) and having higher conductivity than the plurality of soft magnetic layers (105). The sensitive element (31) has a longitudinal direction and a transverse direction and has uniaxial magnetic anisotropy in a direction intersecting the longitudinal direction. The sensitive element (31) is configured to sense a magnetic field by a magnetic impedance effect.

公开(公告)号：US20230059734A1

公开(公告)日：2023-02-23

申请号：US17587499

申请日：2022-01-28

申请人： SHOWA DENKO K.K.

发明人： Sho TONEGAWA ,  Akira SAKAWAKI ,  Daizo ENDO ,  Kota HASEGAWA

IPC分类号： H03H9/17 ,  H01L41/047 ,  H03H9/02

摘要： A piezoelectric film including a piezoelectric body configured to extract radio waves of a required frequency by resonance is provided. The piezoelectric body is based on either of ScAlN or AlN, and an X-ray rocking curve full-width at half-maximum (FWHM) of the piezoelectric body in a lattice plane with a Miller index of (11-20) is not more than 10°.

公开(公告)号：US20230020837A1

公开(公告)日：2023-01-19

申请号：US17785504

申请日：2020-11-17

申请人： SHOWA DENKO K.K.

发明人： Daizo ENDO ,  Tatsunori SHINO

IPC分类号： G01R33/06

摘要： A magnetic sensor includes: a sensitive layer made of a soft magnetic material with uniaxial magnetic anisotropy, the sensitive layer being configured to sense a magnetic field by a magnetic impedance effect; and a magnet layer made of a magnetized hard magnetic material and disposed to face the sensitive layer. The magnet layer is configured to apply a DC magnetic bias Hb in a direction intersecting a direction of the uniaxial magnetic anisotropy in the sensitive layer, the DC magnetic bias Hb having a greater value than an anisotropic magnetic field Hk of the sensitive layer.

公开(公告)号：US20230009139A1

公开(公告)日：2023-01-12

申请号：US17784889

申请日：2020-11-17

申请人： SHOWA DENKO K.K.

发明人： Daizo ENDO ,  Tatsunori SHINO ,  Akira SAKAWAKI ,  Sho TONEGAWA ,  Yasumasa WATANABE

IPC分类号： G01R33/06

摘要： A magnetic sensor includes: plural sensitive elements 31 each including a soft magnetic material layer 105 having a longitudinal direction and a transverse direction and a conductor layer having higher conductivity than the soft magnetic material layer 105 and extending through the soft magnetic material layer 105 in a longitudinal direction, the sensitive element 31 having uniaxial magnetic anisotropy in a direction intersecting the longitudinal direction and being configured to sense a magnetic field by a magnetic impedance effect; and a connecting portion 32 continuous with the conductor layer of the sensitive element and configured to connect transversely adjacent sensitive elements 31 in series.

公开(公告)号：US20220206087A1

公开(公告)日：2022-06-30

申请号：US17526159

申请日：2021-11-15

申请人： SHOWA DENKO K.K.

发明人： Daizo ENDO ,  Akira SAKAWAKI

IPC分类号： G01R33/06

摘要： It is aimed at improving sensitivity of a magnetic sensor using the magnetic impedance effect. A magnetic sensor includes: a non-magnetic substrate; and a sensitive element including a soft magnetic material layer composed of an amorphous alloy with an initial magnetic permeability of 5,000 or more, the soft magnetic material layer being provided on the substrate, having a longitudinal direction and a short direction, being provided with uniaxial magnetic anisotropy in a direction crossing the longitudinal direction, and sensing a magnetic field by a magnetic impedance effect.

公开(公告)号：US20200341077A1

公开(公告)日：2020-10-29

申请号：US16767783

申请日：2018-10-25

申请人： SHOWA DENKO K.K.

发明人： Daizo ENDO

IPC分类号： G01R33/06 ,  G01D5/245

摘要： A magnetic sensor 1 includes: a thin film magnet 20 which is constituted by a hard magnetic material layer 103 and has magnetic anisotropy in an in-plane direction; and a sensitive part 30 including a sensitive element 31 sensing a magnetic field by a magnetic impedance effect, the sensitive element 31 being constituted by a soft magnetic material layer 105 laminated on the hard magnetic material layer 103, having a longitudinal direction and a short direction, and having uniaxial magnetic anisotropy in a direction intersecting the longitudinal direction, in which the longitudinal direction faces in the direction of a magnetic field generated by the thin film magnet 20. The thin film magnet 20 and the sensitive element 31 are provided to constitute a magnetic circuit with a facing member provided outside to face one of magnetic poles of the thin film magnet 20.

公开(公告)号：US20170337945A1

公开(公告)日：2017-11-23

申请号：US15535982

申请日：2015-12-16

申请人： SHOWA DENKO K.K.

发明人： Satoru NAKAMURA ,  Taining HUNG ,  Evance KUO ,  Daizo ENDO

IPC分类号： G11B5/725 ,  C10M111/04 ,  C10M105/54 ,  C10M107/38

CPC分类号： G11B5/725 ,  C10M105/54 ,  C10M107/38 ,  C10M111/04 ,  C10M2211/0425 ,  C10M2213/043 ,  C10N2220/021 ,  C10N2230/56 ,  C10N2240/20 ,  C10N2240/204 ,  C10N2250/08

摘要： The present invention relates to a magnetic recording medium in which a lubricant layer contains a compound A represented by general formula (1) and a compound B represented by general formula (2), satisfying (A/B)=0.2 to 3.0, and has an average thickness of 0.8 nm to 2 nm. R1—C6H4OCH2CH(OH)CH2OCH2—R2—CH2OCH2CH(OH)CH2OH . . . (1) (R1 is an alkoxy group having 1 to 4 carbon atoms. R2 is —CF2O(CF2CF2O)x(CF2O)yCF2— (x, y=0 to 15), —CF2CF2O(CF2CF2CF2O)zCF2CF2— (z=1 to 15), —CF2CF2CF2O(CF2CF2CF2CF2)nCF2CF2CF2— (n=0 to 4). HOCH2CF2CF2O(CF2CF2CF2O)mCF2CF2CH2OCH2CH(OH)CH2OH . . . (2) (m is an integer).