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公开(公告)号：US06982845B2
公开(公告)日：2006-01-03
申请号：US10400532
申请日：2003-03-28
申请人： Tadashi Kai , Masayuki Takagishi , Masashi Sahashi , Junichi Akiyama , Hitoshi Iwasaki , Akira Kikitsu
发明人： Tadashi Kai , Masayuki Takagishi , Masashi Sahashi , Junichi Akiyama , Hitoshi Iwasaki , Akira Kikitsu
IPC分类号： G11B5/02
CPC分类号： B82Y10/00 , G11B5/00 , G11B9/04 , G11B9/1409 , G11B11/08 , G11B11/10 , G11B2005/0002 , G11B2005/0005
摘要： A magnetic recording apparatus comprises a magnetic field impression unit, a current supplying unit and a controlling unit t. The magnetic field impression unit impresses a magnetic field to a magnetic recording medium. The current supplying unit supplies a current to the magnetic recording medium. The controlling unit makes the current supplying unit supply the current to the magnetic recording medium while making the magnetic field impression unit impress the magnetic field to at least a unit of a magnetic recording unit of the magnetic recording medium. Thus, a information is recorded magnetically by making a direction of a magnetization of the magnetic recording unit of the magnetic recording medium in a predetermined direction.
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公开(公告)号：US08400734B2
公开(公告)日：2013-03-19
申请号：US13214012
申请日：2011-08-19
申请人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
发明人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
CPC分类号： G01S19/36 , G01S19/30 , Y10T428/1186
摘要： An example magnetic recording head includes: a main magnetic pole; a laminated body; and a pair of electrodes. The laminated body includes a first magnetic layer having a coercivity lower than magnetic field applied by the main magnetic pole, a second magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. The pair of electrodes is operable to pass a current through the laminated body.
摘要翻译： 一个示例磁记录头包括：主磁极; 层压体; 和一对电极。 层叠体包括具有比由主磁极施加的磁场低的矫顽力的第一磁性层，具有低于由主磁极施加的磁场的矫顽力的第二磁性层，以及设置在第一磁性体之间的中间层 层和第二磁性层。 该对电极可操作以使电流通过层压体。
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公开(公告)号：US08238060B2
公开(公告)日：2012-08-07
申请号：US12780269
申请日：2010-05-14
申请人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
发明人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
CPC分类号： G11B5/17 , G11B5/02 , G11B5/1278 , G11B5/3133 , G11B5/3146 , G11B2005/0002 , G11B2005/0024
摘要： A magnetic recording head includes: a main magnetic pole; a laminated body; and a pair of electrodes. The laminated body includes a first magnetic layer having a coercivity lower than magnetic field applied by the main magnetic pole, a second magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. The pair of electrodes are operable to pass a current through the laminated body.
摘要翻译： 磁记录头包括：主磁极; 层压体; 和一对电极。 层叠体包括具有比由主磁极施加的磁场低的矫顽力的第一磁性层，具有低于由主磁极施加的磁场的矫顽力的第二磁性层，以及设置在第一磁性体之间的中间层 层和第二磁性层。 该对电极可操作以使电流通过层叠体。
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公开(公告)号：US08295009B2
公开(公告)日：2012-10-23
申请号：US13214033
申请日：2011-08-19
申请人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
发明人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
CPC分类号： G01S19/36 , G01S19/30 , Y10T428/1186
摘要： An example magnetic recording head includes: a main magnetic pole; a laminated body; and a pair of electrodes. The laminated body includes a first magnetic layer having a coercivity lower than magnetic field applied by the main magnetic pole, a second magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. The pair of electrodes is operable to pass a current through the laminated body.
摘要翻译： 一个示例磁记录头包括：主磁极; 层压体; 和一对电极。 层叠体包括具有比由主磁极施加的磁场低的矫顽力的第一磁性层，具有低于由主磁极施加的磁场的矫顽力的第二磁性层，以及设置在第一磁性体之间的中间层 层和第二磁性层。 该对电极可操作以使电流通过层压体。
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公开(公告)号：US20100220415A1
公开(公告)日：2010-09-02
申请号：US12780269
申请日：2010-05-14
申请人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
发明人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
IPC分类号： G11B5/33
CPC分类号： G11B5/17 , G11B5/02 , G11B5/1278 , G11B5/3133 , G11B5/3146 , G11B2005/0002 , G11B2005/0024
摘要： A magnetic recording head includes: a main magnetic pole; a laminated body; and a pair of electrodes. The laminated body includes a first magnetic layer having a coercivity lower than magnetic field applied by the main magnetic pole, a second magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. The pair of electrodes are operable to pass a current through the laminated body.
摘要翻译： 磁记录头包括：主磁极; 层压体; 和一对电极。 层叠体包括具有比由主磁极施加的磁场低的矫顽力的第一磁性层，具有低于由主磁极施加的磁场的矫顽力的第二磁性层，以及设置在第一磁性体之间的中间层 层和第二磁性层。 该对电极可操作以使电流通过层叠体。
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公开(公告)号：US20120268844A1
公开(公告)日：2012-10-25
申请号：US13541371
申请日：2012-07-03
申请人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
发明人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
IPC分类号： G11B5/147
CPC分类号： G11B5/17 , G11B5/02 , G11B5/1278 , G11B5/3133 , G11B5/3146 , G11B2005/0002 , G11B2005/0024
摘要： An example magnetic writing head includes a main magnetic pole, a coil to generate an ampere magnetic field to magnetize the main magnetic pole to cause the magnetized main magnetic pole to generate a magnetic field, and a laminated body. The laminated body includes a first magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole and a second magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole.
摘要翻译： 磁性写入头包括主磁极，产生安培磁场以磁化主磁极以使磁化的主磁极产生磁场的线圈和层叠体。 层叠体包括矫顽力低于由主磁极施加的磁场的矫顽力的第一磁性层和具有低于由主磁极施加的磁场的矫顽力的第二磁性层。
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公开(公告)号：US20110299192A1
公开(公告)日：2011-12-08
申请号：US13214033
申请日：2011-08-19
申请人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
发明人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
IPC分类号： G11B21/02
CPC分类号： G01S19/36 , G01S19/30 , Y10T428/1186
摘要： An example magnetic recording head includes: a main magnetic pole; a laminated body; and a pair of electrodes. The laminated body includes a first magnetic layer having a coercivity lower than magnetic field applied by the main magnetic pole, a second magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. The pair of electrodes is operable to pass a current through the laminated body.
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公开(公告)号：US08547662B2
公开(公告)日：2013-10-01
申请号：US13541371
申请日：2012-07-03
申请人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
发明人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
CPC分类号： G11B5/17 , G11B5/02 , G11B5/1278 , G11B5/3133 , G11B5/3146 , G11B2005/0002 , G11B2005/0024
摘要： An example magnetic writing head includes a main magnetic pole, a coil to generate an ampere magnetic field to magnetize the main magnetic pole to cause the magnetized main magnetic pole to generate a magnetic field, and a laminated body. The laminated body includes a first magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole and a second magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole.
摘要翻译： 磁性写入头包括主磁极，产生安培磁场以磁化主磁极以使磁化的主磁极产生磁场的线圈和层叠体。 层叠体包括矫顽力低于由主磁极施加的磁场的矫顽力的第一磁性层和具有低于由主磁极施加的磁场的矫顽力的第二磁性层。
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公开(公告)号：US20110300409A1
公开(公告)日：2011-12-08
申请号：US13214012
申请日：2011-08-19
申请人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
发明人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
IPC分类号： G11B5/187
CPC分类号： G01S19/36 , G01S19/30 , Y10T428/1186
摘要： An example magnetic recording head includes: a main magnetic pole; a laminated body; and a pair of electrodes. The laminated body includes a first magnetic layer having a coercivity lower than magnetic field applied by the main magnetic pole, a second magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. The pair of electrodes is operable to pass a current through the laminated body.
摘要翻译： 一个示例磁记录头包括：主磁极; 层压体; 和一对电极。 层叠体包括具有比由主磁极施加的磁场低的矫顽力的第一磁性层，具有低于由主磁极施加的磁场的矫顽力的第二磁性层，以及设置在第一磁性体之间的中间层 层和第二磁性层。 该对电极可操作以使电流通过层压体。
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公开(公告)号：US07957098B2
公开(公告)日：2011-06-07
申请号：US12155329
申请日：2008-06-02
申请人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
发明人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
CPC分类号： G11B5/17 , G11B5/02 , G11B5/1278 , G11B5/3133 , G11B5/3146 , G11B2005/0002 , G11B2005/0024
摘要： A magnetic writing head includes: a main magnetic pole; a laminated body; and a pair of electrodes. The laminated body includes a first magnetic layer having a coercivity lower than magnetic field applied by the main magnetic pole, a second magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. The pair of electrodes are operable to pass a current through the laminated body.
摘要翻译： 磁头包括：主磁极; 层压体; 和一对电极。 层叠体包括具有比由主磁极施加的磁场低的矫顽力的第一磁性层，具有低于由主磁极施加的磁场的矫顽力的第二磁性层，以及设置在第一磁性体之间的中间层 层和第二磁性层。 该对电极可操作以使电流通过层叠体。
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