-
Patent Agency Ranking
1.发明申请公开(公告)号：US20120307395A1
公开(公告)日：2012-12-06
申请号：US13149780
申请日：2011-05-31
Applicant: Shun Tonooka , Kiwamu Tanahashi , Hiroyuki Nakagawa , Ichiro Tamai
Inventor： Shun Tonooka , Kiwamu Tanahashi , Hiroyuki Nakagawa , Ichiro Tamai
CPC classification number: G11B5/66
Abstract: According to one embodiment, a perpendicular magnetic recording medium includes a first granular recording layer characterized by a magnetic anisotropy Ku1, a second granular recording layer above the first granular recording layer characterized by a magnetic anisotropy Ku2, and a third granular recording layer above the second granular recording layer characterized by a magnetic anisotropy Ku3, wherein Ku3 Ku1. In another embodiment, a magnetic medium includes a first recording layer with a first CoCrPt alloy in a first ratio X1, a second recording layer above the first recording layer and having a second CoCrPt alloy in a second ratio X2, and a third recording layer above the second recording layer having a third CoCrPt alloy in a third ratio X3 with each ratio defined as a concentration of Pt divided by a concentration of Cr in the respective CoCrPt alloy, wherein X3 X1.
Abstract translation: 根据一个实施例，垂直磁记录介质包括第一颗粒记录层，其特征在于磁各向异性Ku1，第一颗粒记录层之上的第二粒状记录层，其特征在于磁各向异性Ku2，第二颗粒记录层位于第二颗粒记录层上方 其特征在于磁各向异性Ku3的粒状记录层，其中Ku3
Ku1。 在另一个实施例中，磁介质包括具有第一比率X1的第一CoCrPt合金的第一记录层，第一记录层上方的第二记录层，并且具有第二比率X2的第二CoCrPt合金，以及第三记录层 所述第二记录层具有第三比例X3的第三CoCrPt合金，其中每个比例定义为各自的CoCrPt合金中的Pt的浓度除以Cr的浓度，其中X3 X1。 -
公开(公告)号：US20100309580A1
公开(公告)日：2010-12-09
申请号：US12793608
申请日：2010-06-03
Applicant: Shun Tonooka , Reiko Arai , Hiroyuki Nakagawa , Kiwamui Tanahashi
Inventor： Shun Tonooka , Reiko Arai , Hiroyuki Nakagawa , Kiwamui Tanahashi
CPC classification number: G11B5/732 , G11B5/667 , Y10T428/24975
Abstract: According to one embodiment, a perpendicular magnetic recording medium includes at least one soft magnetic underlayer above a substrate, a seed layer above the at least one soft magnetic underlayer, an intermediate layer above the seed layer, a magnetic recording layer above the intermediate layer, and an overcoat layer above the magnetic recording layer, wherein the seed layer includes a second seed layer above a first seed layer. In another embodiment, the seed layer is a multilayered structure of at least two cycles of a unit of layered film which includes a first seed layer and a second seed layer. The first seed layer includes a non-magnetic alloy having a Face-Centered-Cubic (FCC) structure, and the second seed layer includes a soft magnetic alloy having a FCC structure. Other structures are also disclosed, according to more embodiments.
Abstract translation: 根据一个实施例，垂直磁记录介质包括至少一个在基底上方的软磁性底层，至少一个软磁性底层上方的晶种层，种子层上方的中间层，中间层上方的磁记录层， 以及在所述磁记录层上方的覆盖层，其中所述种子层包括在第一种子层上方的第二种子层。 在另一个实施方案中，种子层是包括第一种子层和第二种子层的分层膜单元的至少两个循环的多层结构。 第一晶种层包括具有面心立方（FCC）结构的非磁性合金，第二晶种层包括具有FCC结构的软磁合金。 根据更多实施例，还公开了其他结构。
-
3.发明授权公开(公告)号：US09058831B2
公开(公告)日：2015-06-16
申请号：US13326213
申请日：2011-12-14
Applicant: Shun Tonooka , Kiwamu Tanahashi , Hiroyuki Nakagawa , Ichiro Tamai
Inventor： Shun Tonooka , Kiwamu Tanahashi , Hiroyuki Nakagawa , Ichiro Tamai
Abstract: In one embodiment, a perpendicular magnetic recording medium includes an oxide recording layer including an oxide and a non-oxide recording layer which does not contain an oxide positioned above the oxide recording layer. The oxide recording layer includes a region R1 where a grain boundary width in a direction parallel to a plane of formation of R1 increases therealong from a lowermost portion of the oxide recording layer toward a medium surface, a region R3 positioned above R1 wherein a grain boundary width increases therealong toward the medium surface, a region R2 where a grain boundary width of R2 decreases therealong from R1 to R3, with R2 being positioned between R1 and R3, and a region R4 where a grain boundary width of R4 decreases therealong from R3 toward the medium surface, with R4 being positioned above R3 and near an uppermost portion of the oxide recording layer.
Abstract translation: 在一个实施例中，垂直磁记录介质包括氧化物记录层，该氧化物记录层包括不包含位于氧化物记录层上方的氧化物的氧化物和非氧化物记录层。 氧化物记录层包括区域R1，其中平行于R1的形成平面的方向上的晶界宽度从氧化物记录层的最下部朝向介质表面增加，位于R1上方的区域R3，其中晶界 宽度随着介质表面的增加而增加，其中R2的晶界宽度从R1向R3延伸的区域R2，R2位于R1和R3之间，R4的晶界宽度从R3向R3的边界宽度减小 中间表面，其中R4位于R3上方并且靠近氧化物记录层的最上部。
-
4.发明申请公开(公告)号：US20130155542A1
公开(公告)日：2013-06-20
申请号：US13326213
申请日：2011-12-14
Applicant: Shun Tonooka , Kiwamu Tanahashi , Hiroyuki Nakagawa , Ichiro Tamai
Inventor： Shun Tonooka , Kiwamu Tanahashi , Hiroyuki Nakagawa , Ichiro Tamai
Abstract: In one embodiment, a perpendicular magnetic recording medium includes an oxide recording layer including an oxide and a non-oxide recording layer which does not contain an oxide positioned above the oxide recording layer. The oxide recording layer includes a region R1 where a grain boundary width in a direction parallel to a plane of formation of R1 increases therealong from a lowermost portion of the oxide recording layer toward a medium surface, a region R3 positioned above R1 wherein a grain boundary width increases therealong toward the medium surface, a region R2 where a grain boundary width of R2 decreases therealong from R1 to R3, with R2 being positioned between R1 and R3, and a region R4 where a grain boundary width of R4 decreases therealong from R3 toward the medium surface, with R4 being positioned above R3 and near an uppermost portion of the oxide recording layer.
Abstract translation: 在一个实施例中，垂直磁记录介质包括氧化物记录层，该氧化物记录层包括不包含位于氧化物记录层上方的氧化物的氧化物和非氧化物记录层。 氧化物记录层包括区域R1，其中平行于R1的形成平面的方向上的晶界宽度从氧化物记录层的最下部朝向介质表面增加，位于R1上方的区域R3，其中晶界 宽度随着介质表面的增加而增加，其中R2的晶界宽度从R1向R3延伸的区域R2，R2位于R1和R3之间，R4的晶界宽度从R3向R3的边界宽度减小 中间表面，其中R4位于R3上方并且靠近氧化物记录层的最上部。
-
公开(公告)号：US08390956B2
公开(公告)日：2013-03-05
申请号：US12793608
申请日：2010-06-03
Applicant: Shun Tonooka , Reiko Arai , Hiroyuki Nakagawa , Kiwamu Tanahashi
Inventor： Shun Tonooka , Reiko Arai , Hiroyuki Nakagawa , Kiwamu Tanahashi
CPC classification number: G11B5/732 , G11B5/667 , Y10T428/24975
Abstract: According to one embodiment, a perpendicular magnetic recording medium includes at least one soft magnetic underlayer above a substrate, a seed layer above the at least one soft magnetic underlayer, an intermediate layer above the seed layer, a magnetic recording layer above the intermediate layer, and an overcoat layer above the magnetic recording layer, wherein the seed layer includes a second seed layer above a first seed layer. In another embodiment, the seed layer is a multilayered structure of at least two cycles of a unit of layered film which includes a first seed layer and a second seed layer. The first seed layer includes a non-magnetic alloy having a Face-Centered-Cubic (FCC) structure, and the second seed layer includes a soft magnetic alloy having a FCC structure. Other structures are also disclosed, according to more embodiments.
Abstract translation: 根据一个实施例，垂直磁记录介质包括至少一个在基底上方的软磁性底层，至少一个软磁性底层上方的晶种层，种子层上方的中间层，中间层上方的磁记录层， 以及在所述磁记录层上方的覆盖层，其中所述种子层包括在第一种子层上方的第二种子层。 在另一个实施方案中，种子层是包括第一种子层和第二种子层的分层膜单元的至少两个循环的多层结构。 第一晶种层包括具有面心立方（FCC）结构的非磁性合金，第二晶种层包括具有FCC结构的软磁合金。 根据更多实施例，还公开了其他结构。
-
-
-
-
Search Results
5
records
(took 0.01 seconds)
