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11. 发明授权

US07205020B2 Magnetic recording medium and method for manufacturing same 有权
标题翻译：磁记录介质及其制造方法
公开(公告)号：US07205020B2
公开(公告)日：2007-04-17
申请号：US10757901
申请日：2004-01-14
申请人： Tadaaki Oikawa , Hiroyuki Uwazumi , Takahiro Shimizu , Naoki Takizawa
发明人： Tadaaki Oikawa , Hiroyuki Uwazumi , Takahiro Shimizu , Naoki Takizawa
IPC分类号： B05D5/12
CPC分类号： G11B5/66 , G11B5/84 , Y10T428/1259 , Y10T428/12611 , Y10T428/12861 , Y10T428/12868
摘要： A magnetic recording medium has a non-magnetic under-layer, a magnetic layer, a protective film and a liquid lubricant layer sequentially laminated on a non-magnetic substrate. The magnetic layer has a multi-layer structure laminated with two or more magnetic layer components, each of the magnetic layer components having ferromagnetic grains and non-magnetic grain boundaries surrounding the grain. The resulting magnetic recording medium has a granular magnetic layer exhibiting very high Hc accompanying high density of magnetic recording, while decreasing the amount of platinum needed for attaining the high Hc, and reducing media noise accompanying the high recording density.
摘要翻译：磁记录介质具有顺序层叠在非磁性基板上的非磁性底层，磁性层，保护膜和液体润滑剂层。磁性层具有层叠有两层以上的磁性层成分的多层结构，所述磁性层成分各自具有铁磁性粒子和包围该粒子的非磁性晶界。所得磁记录介质具有伴随高记录密度显示出非常高的Hc的颗粒磁性层，同时减少获得高Hc所需的铂量，并且降低伴随高记录密度的介质噪声。

12. 发明授权

US07183013B2 Magnetic recording medium and manufacturing method thereof 有权
标题翻译：磁记录介质及其制造方法
公开(公告)号：US07183013B2
公开(公告)日：2007-02-27
申请号：US10764813
申请日：2004-01-26
申请人： Tadaaki Oikawa , Takahiro Shimizu , Hiroyuki Uwazumi , Naoki Takizawa
发明人： Tadaaki Oikawa , Takahiro Shimizu , Hiroyuki Uwazumi , Naoki Takizawa
IPC分类号： G11B5/66 , G11B5/70
CPC分类号： G11B5/7325 , G11B5/65 , G11B5/656 , G11B5/8404
摘要： A nonmagnetic foundation layer is made to have a body-centered cubic crystal structure with a preferred crystal orientation plane being the bcc (110) plane. A nonmagnetic intermediate layer, provided between the foundation layer and a granular magnetic layer, has a hexagonal close-packed structure with the hcp (100) plane or the hcp (200) plane being the preferred orientation plane. Furthermore, the crystal lattice misfit amount between the nonmagnetic intermediate layer 3 and the granular magnetic layer is made to be not more than 10% for each of an a-axis and a c-axis. As a result, epitaxial growth of ferromagnetic crystals in the granular magnetic layer, which has an hcp structure, is promoted, and hence the crystallinity of the magnetic layer is increased, and thus it becomes possible to simultaneously realize an increase in coercivity and a reduction in noise. Depositing the layers on an unheated substrate yields reduces manufacturing costs.
摘要翻译：将非磁性基础层制成具有体心立方晶体结构，其中优选的晶体取向平面是bcc（110）面。设置在基础层和粒状磁性层之间的非磁性中间层具有hcp（100）面或hcp（200）面为优选取向面的六方密堆积结构。此外，非磁性中间层3和粒状磁性层之间的晶格失配量对于a轴和c轴分别为10％以下。结果，促进了具有hcp结构的粒状磁性层中的铁磁晶体的外延生长，因此磁性层的结晶度增加，因此可以同时实现矫顽力的提高和还原在噪音将层沉积在未加热的基底上会降低制造成本。

13. 发明授权

US06673475B2 Magnetic recording medium and manufacturing method therefore 失效
标题翻译：磁记录介质及其制造方法
公开(公告)号：US06673475B2
公开(公告)日：2004-01-06
申请号：US09976248
申请日：2001-10-11
申请人： Tadaaki Oikawa , Hiroyuki Uwazumi , Takahiro Shimizu , Naoki Takizawa
发明人： Tadaaki Oikawa , Hiroyuki Uwazumi , Takahiro Shimizu , Naoki Takizawa
IPC分类号： G11B566
CPC分类号： G11B5/732 , G11B5/66 , G11B5/7325 , Y10S428/90 , Y10T428/265
摘要： A magnetic recording medium achieves excellent noise reduction by controlling the crystal orientation of a magnetic layer without thermal processing. The magnetic recording medium includes multiple layers laminated to a substrate. These layers include at least the magnetic layer and a non-magnetic under layer. The magnetic layer has a granular structure consisting of ferromagnetic grains with a hexagonal close-packed structure and non-magnetic grain boundaries composed mainly oxide or a nitride. The non-magnetic under-layer is a material having a body centered cubic crystal structure with a preferential orientation along a (200) plane parallel to a film surface of the under-layer.
摘要翻译：通过控制磁性层的晶体取向而不进行热处理，磁记录介质实现了优异的降噪。磁记录介质包括层压到基板上的多层。这些层至少包括磁性层和非磁性底层。磁性层具有由六方密堆积结构的铁磁性晶粒和主要由氧化物或氮化物构成的非磁性晶界组成的粒状结构。非磁性底层是具有体心立方晶体结构的材料，其沿着平行于底层的膜表面的（200）平面具有优先取向。

14. 发明授权

US06826825B2 Method for manufacturing a magnetic recording medium 有权
标题翻译：磁记录介质的制造方法
公开(公告)号：US06826825B2
公开(公告)日：2004-12-07
申请号：US09992540
申请日：2001-11-06
申请人： Naoki Takizawa , Hiroyuki Uwazumi , Takahiro Shimizu , Tadaaki Oikawa
发明人： Naoki Takizawa , Hiroyuki Uwazumi , Takahiro Shimizu , Tadaaki Oikawa
IPC分类号： G11B5127
CPC分类号： G11B5/7325 , G11B5/11 , G11B5/8404 , G11B5/851 , Y10T29/49021 , Y10T29/49023 , Y10T29/49039 , Y10T29/49043 , Y10T29/49055 , Y10T29/49078 , Y10T29/49817 , Y10T29/49819
摘要： A manufacturing method achieves excellent magnetic recording characteristics by sequentially sputtering a non-magnetic under-layer, a non-magnetic intermediate layer, and a magnetic layer on a non-magnetic substrate in an atmosphere of H2O partial pressure of 2×10−10 Torr or lower. This process allows beneficial deposition of the magnetic layer and reduces raw materials costs. The magnetic layer includes ferromagnetic grains and non-magnetic grain boundaries. The intermediate layer has a hexagonal close-packed crystal structure. The manufacturing method allows manufacture of a high quality magnetic recording medium without a heating step thereby allowing use of lower cost materials, reduces manufacturing time, and increases savings.
摘要翻译：制造方法通过在2×10 -10乇的H 2 O分压的气氛中在非磁性基板上依次溅射非磁性底层，非磁性中间层和磁性层来实现优异的磁记录特性或更低。该方法可有效地沉积磁性层并降低原料成本。磁性层包括铁磁性晶粒和非磁性晶界。中间层具有六方密堆积晶体结构。该制造方法允许制造高品质的磁记录介质而不加热步骤，从而允许使用较低成本的材料，减少制造时间并且增加节省。

15. 发明授权

US06696172B2 Recording medium and method for manufacturing the same 失效
标题翻译：记录介质及其制造方法
公开(公告)号：US06696172B2
公开(公告)日：2004-02-24
申请号：US10032713
申请日：2001-10-22
申请人： Tadaaki Oikawa , Hiroyuki Uwazumi , Takahiro Shimizu , Naoki Takizawa
发明人： Tadaaki Oikawa , Hiroyuki Uwazumi , Takahiro Shimizu , Naoki Takizawa
IPC分类号： G11B566
CPC分类号： G11B5/7325 , G11B5/8404 , Y10T428/12667 , Y10T428/12861 , Y10T428/31
摘要： A magnetic recording medium has at least a non-magnetic under-layer, a magnetic layer, a protective layer and a liquid lubricant layer sequentially laminated on a non-magnetic substrate. The magnetic layer includes ferromagnetic grains and non-magnetic grain boundaries formed of metallic oxide or carbide surrounding the ferromagnetic grains. A non-magnetic intermediate layer, having grains of non-magnetic substance and non-magnetic grain boundaries, formed of metallic oxide or carbide, surrounding the grains of non-magnetic substance, is provided between the non-magnetic under-layer and the magnetic layer. The resulting magnetic recording medium exhibits a high coercive force, Hc, and low noise. Furthermore, the resulting magnetic recording medium prevents the deterioration of the media characteristics in an initial growth region in the granular magnetic layer.
摘要翻译：磁记录介质至少具有非磁性底层，磁性层，保护层和液体润滑剂层，其顺序层压在非磁性基板上。磁性层包括铁磁颗粒和由铁磁性颗粒周围的金属氧化物或碳化物形成的非磁性晶界。在非磁性底层和磁性层之间设置有非磁性中间层，其具有由非磁性物质的颗粒围绕的非磁性物质周围的由金属氧化物或碳化物形成的非磁性物质和非磁性晶界的晶粒层。所得到的磁记录介质表现出高矫顽力Hc和低噪声。此外，所得到的磁记录介质防止颗粒状磁性层中的初始生长区域中的介质特性的劣化。

16. 发明授权

US06716543B2 Magnetic recording medium and method for producing same 有权
标题翻译：磁记录介质及其制造方法
公开(公告)号：US06716543B2
公开(公告)日：2004-04-06
申请号：US09789929
申请日：2001-02-22
申请人： Hiroyuki Uwazumi , Tadaaki Oikawa , Naoki Takizawa
发明人： Hiroyuki Uwazumi , Tadaaki Oikawa , Naoki Takizawa
IPC分类号： G11B566
CPC分类号： G11B5/66 , Y10S428/90 , Y10T428/12465 , Y10T428/12806 , Y10T428/12861
摘要： The present invention provides a magnetic recording medium including at least a nonmagnetic undercoat layer, a nonmagnetic metallic intermediate layer, a magnetic layer, a protective film, and a liquid lubricant layer sequentially laminated on a nonmagnetic substrate, wherein the magnetic layer contains crystal grains having ferromagnetism and nonmagnetic grain boundaries surrounding the crystal grains, and the nonmagnetic metallic intermediate layer contains at least one layer, and the crystal structure of each layer being a hexagonal close-packed structure; and a method for producing the magnetic recording medium. The magnetic recording medium shows high coercive force Hc and a low medium noise, and its manufacturing cost is also low.
摘要翻译：本发明提供一种至少包括非磁性底涂层，非磁性金属中间层，磁性层，保护膜和顺序层压在非磁性基板上的液体润滑剂层的磁记录介质，其中磁性层含有具有铁磁性和围绕晶粒的非磁性晶界，非磁性金属中间层至少含有一层，各层的晶体结构为六方密堆积结构。以及制造该磁记录介质的方法。磁记录介质显示出高矫顽力Hc和低介质噪声，其制造成本也低。

17. 发明授权

US5843561A Magnetic recording medium and method for manufacturing the same 失效
标题翻译：磁记录介质及其制造方法
公开(公告)号：US5843561A
公开(公告)日：1998-12-01
申请号：US639676
申请日：1996-04-29
申请人： Hiroyuki Uwazumi , Naoki Takizawa , Noboru Kurata
发明人： Hiroyuki Uwazumi , Naoki Takizawa , Noboru Kurata
IPC分类号： G11B5/66 , G11B5/73 , G11B5/84
CPC分类号： G11B5/7325 , G11B5/66 , G11B5/8404 , Y10S428/90 , Y10T428/24355 , Y10T428/265
摘要： A magnetic recording medium includes an uneven layer, a non-magnetic metal base layer, a magnetic layer and a protective layer which are laminated on a non-magnetic base in the order of description. The uneven layer includes non-magnetic metal deposits containing nitrogen or oxygen, and consists of mutually isolated protrusions having a crystalline phase, which are discretely dispersed on the surface of the non-magnetic base, and a connecting layer having an amorphous phase for filling spaces between the protrusions so as to connect the protrusions with each other.
摘要翻译：按照说明书的顺序，磁记录介质包括层叠在非磁性基底上的不平坦层，非磁性金属基层，磁性层和保护层。不均匀层包括含有氮或氧的非磁性金属沉积物，并且由离散地分散在非磁性基底的表面上的具有结晶相的相互隔离的突起组成，并且具有用于填充空间的非晶相的连接层在所述突起之间，以使所述突起彼此连接。

18. 发明授权

US06946166B2 Magnetic recording medium, a method of manufacturing the same, and a magnetic storage device using the magnetic recording medium 失效
标题翻译：磁记录介质，其制造方法和使用该磁记录介质的磁存储装置
公开(公告)号：US06946166B2
公开(公告)日：2005-09-20
申请号：US10318280
申请日：2002-12-12
申请人： Akira Iso , Takahiro Shimizu , Naoki Takizawa
发明人： Akira Iso , Takahiro Shimizu , Naoki Takizawa
IPC分类号： G11B5/738 , G11B5/73 , G11B5/84
CPC分类号： G11B5/7325 , G11B5/8404
摘要： A magnetic recording medium according to the invention includes a nonmagnetic substrate made of a polymer resin, the nonmagnetic substrate having been treated to improve an adhesion characteristic thereof; an adhesive layer on the nonmagnetic substrate, a nonmagnetic undercoating layer on the an adhesive layer; a magnetic layer above the nonmagnetic undercoating layer; a protection layer above the magnetic layer; and a liquid lubricant layer on the protection layer. A method of manufacturing the magnetic recording medium described above includes the steps of: treating a nonmagnetic substrate to improve an adhesion characteristic thereof; forming an adhesive layer on the nonmagnetic substrate, the adhesion thereof having been improved; forming a nonmagnetic undercoating layer on the adhesive layer; forming a magnetic layer above the nonmagnetic undercoating layer; forming a protection layer above the magnetic layer; and forming a liquid lubricant layer on the protection layer. A magnetic storage device according to the invention mounts thereon the magnetic recording medium described above.
摘要翻译：根据本发明的磁记录介质包括由聚合物树脂制成的非磁性基底，非磁性基底已被处理以改善其粘合特性; 非磁性基底上的粘合剂层，粘合剂层上的非磁性底涂层; 在非磁性底涂层之上的磁性层; 磁性层上方的保护层; 以及在保护层上的液体润滑剂层。上述磁记录介质的制造方法包括以下步骤：处理非磁性基板以提高其粘合特性; 在非磁性基材上形成粘合剂层，其附着力得到改善; 在粘合剂层上形成非磁性底涂层; 在非磁性底涂层之上形成磁性层; 在所述磁性层上形成保护层; 以及在所述保护层上形成液体润滑剂层。根据本发明的磁存储装置安装在其上的磁记录介质上。

19. 发明授权

US08520263B2 Image forming apparatus and image forming method 失效
标题翻译：图像形成装置及图像形成方法
公开(公告)号：US08520263B2
公开(公告)日：2013-08-27
申请号：US11612087
申请日：2006-12-18
申请人： Naoki Takizawa , Ken Higuchi
发明人： Naoki Takizawa , Ken Higuchi
IPC分类号： H04N1/40
CPC分类号： B41M5/5227 , B41J3/407
摘要： An image forming apparatus capable of recording image information and additional information added separately from the image information to a photographic printing medium is disclosed. The image forming apparatus includes: image information acquisition means for acquiring the image information, additional information acquisition means for acquiring the additional information, and recording means for recording the image information acquired by the image information acquisition means and the additional information acquired by the additional information acquisition means to the photographic printing medium, wherein the recording means can record the additional information by applying a transparent material that absorbs light of a specific wavelength to the area that does not absorb the light on a recording surface of the photographic printing medium.
摘要翻译：公开了能够将图像信息和从图像信息分开添加的附加信息记录到照相打印介质的图像形成装置。图像形成装置包括：用于获取图像信息的图像信息获取装置，用于获取附加信息的附加信息获取装置，以及用于记录由图像信息获取装置获取的图像信息和由附加信息获取的附加信息的记录装置获取装置，其中记录装置可以通过将吸收特定波长的光的透明材料应用到照相打印介质的记录表面上的不吸收光的区域来记录附加信息。

20. 发明申请

US20070146470A1 IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 失效
标题翻译：图像形成装置和图像形成方法
公开(公告)号：US20070146470A1
公开(公告)日：2007-06-28
申请号：US11612087
申请日：2006-12-18
申请人： Naoki Takizawa , Ken Higuchi
发明人： Naoki Takizawa , Ken Higuchi
IPC分类号： B41J2/315
CPC分类号： B41M5/5227 , B41J3/407
摘要： An image forming apparatus capable of recording image information and additional information added separately from the image information to a photographic printing medium is disclosed. The image forming apparatus includes: image information acquisition means for acquiring the image information, additional information acquisition means for acquiring the additional information, and recording means for recording the image information acquired by the image information acquisition means and the additional information acquired by the additional information acquisition means to the photographic printing medium, wherein the recording means can record the additional information by applying a transparent material that absorbs light of a specific wavelength to the area that does not absorb the light on a recording surface of the photographic printing medium.
摘要翻译：公开了能够将图像信息和从图像信息分开添加的附加信息记录到照相打印介质的图像形成装置。图像形成装置包括：用于获取图像信息的图像信息获取装置，用于获取附加信息的附加信息获取装置，以及用于记录由图像信息获取装置获取的图像信息和由附加信息获取的附加信息的记录装置获取装置，其中记录装置可以通过将吸收特定波长的光的透明材料应用到照相打印介质的记录表面上的不吸收光的区域来记录附加信息。

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