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1. 发明公开

EP1475783A3 Magnetic recording medium 审中-公开
公开(公告)号：EP1475783A3
公开(公告)日：2006-05-31
申请号：EP04010349.1
申请日：2004-04-30
申请人： FUJI PHOTO FILM CO., LTD.
发明人： Harasawa, Takeshi , Takano, Hiroaki
IPC分类号： G11B5/70 , G11B5/714
CPC分类号： G11B5/70 , G11B5/70678 , G11B5/714 , Y10T428/257
摘要： A magnetic recording medium comprising a support and a magnetic layer containing a ferromagnetic powder, wherein the magnetic layer has a volume of magnetic flux revolution of from 3,000 to 15,000 nm 3 , a thickness of from 0.01 to 0.15 µm, a squareness ratio in a perpendicular direction of 0.7 or more, and a surface electrical resistance of 10 8 Ω/sq or less.

2. 发明授权

EP0732688B1 Magnetic recording medium 失效
标题翻译：一种磁记录介质
公开(公告)号：EP0732688B1
公开(公告)日：2000-06-14
申请号：EP96103570.6
申请日：1996-03-07
申请人： FUJI PHOTO FILM CO., LTD.
发明人： Inaba, Hiroo , Suzuki, Masaki , Matsubaguchi, Satoshi , Takano, Hiroaki
IPC分类号： G11B5/706 , G11B5/73
CPC分类号： G11B5/716 , G11B5/70 , G11B5/70621 , G11B5/738

3. 发明公开

EP1635340A3 Optical recording medium 审中-公开
标题翻译：光学记录介质
公开(公告)号：EP1635340A3
公开(公告)日：2007-01-03
申请号：EP05019469.5
申请日：2005-09-07
申请人： FUJI PHOTO FILM CO., LTD.
发明人： Inoue, Noriko , Takano, Hiroaki
IPC分类号： G11B7/24
CPC分类号： G11B7/2403
摘要： An optical recording medium (OM1 or M2) of the present invention is a lamination body having two light transmissive substrates (1 and 2 or 1' and 2') not less than 50 µm in thickness and an optical information recording layer (3 or 3') not less than 100 µm in thickness that is provided between the two light transmissive substrates and is comprised of an optical recording material where information is recorded by recording light, wherein a side edge portion of the lamination body is covered so that edges of the light transmissive substrates and the optical information recording layer are not exposed.
摘要翻译：本发明的光记录介质（OM1或M2）是具有厚度不小于50μm的两个透光基板（1和2或1'和2'）的层压体和光学信息记录层（3或3 '）设置在两个透光性基板之间的厚度不小于100μm，并且由其中通过记录光记录信息的光学记录材料构成，其中覆盖层压体的侧边缘部分以使得透光衬底和光学信息记录层不被暴露。

4. 发明公开

EP1475783A2 Magnetic recording medium 审中-公开
标题翻译：磁记录介质
公开(公告)号：EP1475783A2
公开(公告)日：2004-11-10
申请号：EP04010349.1
申请日：2004-04-30
申请人： Fuji Photo Film Co., Ltd.
发明人： Harasawa, Takeshi , Takano, Hiroaki
IPC分类号： G11B5/62 , G11B5/70 , G11B5/714
CPC分类号： G11B5/70 , G11B5/70678 , G11B5/714 , Y10T428/257
摘要： A magnetic recording medium comprising a support and a magnetic layer containing a ferromagnetic powder, wherein the magnetic layer has a volume of magnetic flux revolution of from 3,000 to 15,000 nm 3 , a thickness of from 0.01 to 0.15 µm, a squareness ratio in a perpendicular direction of 0.7 or more, and a surface electrical resistance of 10 8 Ω/sq or less.
摘要翻译：一种磁记录介质，其特征在于，具有支撑体和含有铁磁性粉末的磁性层，其中，所述磁性层的磁通旋转量为3000〜15000nm 3，厚度为0.01〜0.15μm，垂直方向的矩形比为0.7以上，表面电阻为108Ω/ sq以下。

5. 发明授权

EP0945857B1 Magnetic recording medium 失效
标题翻译：一种磁记录介质
公开(公告)号：EP0945857B1
公开(公告)日：2006-11-29
申请号：EP98120569.3
申请日：1995-07-06
申请人： FUJI PHOTO FILM CO., LTD.
发明人： Inaba, Hiroo , Suzuki, Masaki , Abe, Naoto , Kitahara, Toshiyuki , Matsubaguchi, Satoshi , Takano, Hiroaki
IPC分类号： G11B5/73 , G11B5/702
CPC分类号： G11B5/70 , G11B5/7022 , G11B5/738 , Y10S428/90 , Y10T428/24355 , Y10T428/24942 , Y10T428/24975 , Y10T428/265 , Y10T428/31609

6. 发明授权

EP0732688B2 Magnetic recording medium 失效
公开(公告)号：EP0732688B2
公开(公告)日：2003-06-25
申请号：EP96103570.6
申请日：1996-03-07
申请人： FUJI PHOTO FILM CO., LTD.
发明人： Inaba, Hiroo , Suzuki, Masaki , Matsubaguchi, Satoshi , Takano, Hiroaki
IPC分类号： G11B5/706 , G11B5/73
CPC分类号： G11B5/716 , G11B5/70 , G11B5/70621 , G11B5/738

7. 发明公开

EP0945857A2 Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：EP0945857A2
公开(公告)日：1999-09-29
申请号：EP98120569.3
申请日：1995-07-06
申请人： FUJI PHOTO FILM CO., LTD.
发明人： Inaba, Hiroo , Suzuki, Masaki , Abe, Naoto , Kitahara, Toshiyuki , Matsubaguchi, Satoshi , Takano, Hiroaki
IPC分类号： G11B5/704 , G11B5/702
CPC分类号： G11B5/70 , G11B5/7022 , G11B5/738 , Y10S428/90 , Y10T428/24355 , Y10T428/24942 , Y10T428/24975 , Y10T428/265 , Y10T428/31609
摘要： A magnetic recording medium prepared by a process which comprises providing a nonmagnetic layer comprising a nonmagnetic powder and a binder on a nonmagnetic support, and then providing one or more magnetic layers containing at least a ferromagnetic powder and a binder on the nonmagnetic layer while the nonmagnetic layer is wet, wherein the thickness of the magnetic layer is from 0.07 to 0.20 µm, the magnetic layer comprises a resin curable by a polyisocyanate as a binder, the nonmagnetic layer is a layer cured by a polyisocyanate, and the ratio N/Fe in the magnetic layer is from 0.010 to 0.090 as determined by an X-ray photoelectric spectrophotometer;/and a magnetic recording medium comprising a nonmagnetic support having thereon a lower nonmagnetic layer comprising a nonmagnetic powder and a binder, and further thereon a magnetic layer comprising at least a ferromagnetic metal powder and a binder, wherein the magnetic layer has a thickness of from 0.07 to 0.20 µm, the magnetic layer has a maximum magnetic flux density Bm of from 3,700 to 6,000 G as measured in an external magnetic field of 10 kOe, the magnetic layer has a coercive force Hc of from 2,000 to 3,000 Oe, the magnetic layer has a center line surface roughness Ra of from 1.0 to 3.0 nm, and the nonmagnetic support has a center line surface roughness of from 0.5 to 7.0 nm on the side thereof to which the lower nonmagnetic layer is provided.
摘要翻译：一种磁记录介质，其特征在于，在非磁性体上设置由非磁性体粉末和粘合剂构成的非磁性体层，在该非磁性体层上设置至少包含铁磁性粉末和粘合剂的一个以上的磁性体层，层是湿的，其中磁性层的厚度为0.07至0.20μm，磁性层包含可由作为粘合剂的聚异氰酸酯固化的树脂，非磁性层为由多异氰酸酯固化的层，并且N / Fe之比由X射线光电分光光度计测定的磁性层为0.010至0.090;和包含非磁性载体的磁性记录介质，其上具有包含非磁性粉末和粘合剂的下部非磁性层，至少一种铁磁金属粉末和一种粘合剂，其中该磁性层的厚度为0.07至0.20μm，该磁性层 r在10kOe的外部磁场中测得的最大磁通密度Bm为3,700-6,000G，磁性层的矫顽力Hc为2,000-3,000Oe，磁性层的中心线表面粗糙度Ra 为1.0〜3.0nm，非磁性支撑体的下部非磁性体层侧的中心线表面粗糙度为0.5〜7.0nm。

8. 发明公开

EP0732688A3 Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：EP0732688A3
公开(公告)日：1997-02-05
申请号：EP96103570.6
申请日：1996-03-07
申请人： FUJI PHOTO FILM CO., LTD.
发明人： Inaba, Hiroo , Suzuki, Masaki , Matsubaguchi, Satoshi , Takano, Hiroaki
IPC分类号： G11B5/706 , G11B5/704
CPC分类号： G11B5/716 , G11B5/70 , G11B5/70621 , G11B5/738
摘要： A magnetic recording medium is disclosed, comprising a lower coating layer mainly comprising an inorganic powder and a binder provided on a non-magnetic support, and one or more magnetic layers comprising at least a ferromagnetic metal powder and a binder provided on the lower coating layer, wherein the thickness of said magnetic layers is from 0.05 µm to 0.8 µm and the magnetic particle incorporated in said magnetic layers comprises Fe as a main component, Co in an amount of from 10 atm-% to 40 atm-% and Y is an amount of from 1.5 atm-% to 10 atm-%, based on Fe.
摘要翻译：公开了一种磁记录介质，包括设置在非磁性载体上的主要包含无机粉末和粘合剂的下涂层和设置在下涂层上的至少包含铁磁金属粉末和粘合剂的一个或多个磁性层其中，所述磁性层的厚度为0.05μm至0.8μm，并且包含在所述磁性层中的磁性颗粒包含Fe作为主要成分，Co的量为10atm-％至40atm-％，并且Y是基于铁的量为1.5atm-％至10atm-％。

9. 发明公开

EP1635340A2 Optical recording medium 审中-公开
标题翻译：选择Aufzeichnungsmedium
公开(公告)号：EP1635340A2
公开(公告)日：2006-03-15
申请号：EP05019469.5
申请日：2005-09-07
申请人： FUJI PHOTO FILM CO., LTD.
发明人： Inoue, Noriko , Takano, Hiroaki
IPC分类号： G11B7/24
CPC分类号： G11B7/2403
摘要： An optical recording medium (OM1 or M2) of the present invention is a lamination body having two light transmissive substrates (1 and 2 or 1' and 2') not less than 50 µm in thickness and an optical information recording layer (3 or 3') not less than 100 µm in thickness that is provided between the two light transmissive substrates and is comprised of an optical recording material where information is recorded by recording light, wherein a side edge portion of the lamination body is covered so that edges of the light transmissive substrates and the optical information recording layer are not exposed.
摘要翻译：本发明的光记录介质（OM1或M2）是具有厚度不小于50μm的两个透光基板（1和2或1'和2'）和光信息记录层（3或3 '）设置在两个透光基板之间的厚度不小于100μm，并且包括通过记录光记录信息的光学记录材料，其中覆盖层压体的侧边缘部分透光基板和光信息记录层不暴露。

10. 发明公开

EP0945857A3 Magnetic recording medium 失效
公开(公告)号：EP0945857A3
公开(公告)日：1999-10-06
申请号：EP98120569.3
申请日：1995-07-06
申请人： FUJI PHOTO FILM CO., LTD.
发明人： Inaba, Hiroo , Suzuki, Masaki , Abe, Naoto , Kitahara, Toshiyuki , Matsubaguchi, Satoshi , Takano, Hiroaki
IPC分类号： G11B5/704 , G11B5/702
CPC分类号： G11B5/70 , G11B5/7022 , G11B5/738 , Y10S428/90 , Y10T428/24355 , Y10T428/24942 , Y10T428/24975 , Y10T428/265 , Y10T428/31609
摘要： A magnetic recording medium prepared by a process which comprises providing a nonmagnetic layer comprising a nonmagnetic powder and a binder on a nonmagnetic support, and then providing one or more magnetic layers containing at least a ferromagnetic powder and a binder on the nonmagnetic layer while the nonmagnetic layer is wet, wherein the thickness of the magnetic layer is from 0.07 to 0.20 µm, the magnetic layer comprises a resin curable by a polyisocyanate as a binder, the nonmagnetic layer is a layer cured by a polyisocyanate, and the ratio N/Fe in the magnetic layer is from 0.010 to 0.090 as determined by an X-ray photoelectric spectrophotometer;/and a magnetic recording medium comprising a nonmagnetic support having thereon a lower nonmagnetic layer comprising a nonmagnetic powder and a binder, and further thereon a magnetic layer comprising at least a ferromagnetic metal powder and a binder, wherein the magnetic layer has a thickness of from 0.07 to 0.20 µm, the magnetic layer has a maximum magnetic flux density Bm of from 3,700 to 6,000 G as measured in an external magnetic field of 10 kOe, the magnetic layer has a coercive force Hc of from 2,000 to 3,000 Oe, the magnetic layer has a center line surface roughness Ra of from 1.0 to 3.0 nm, and the nonmagnetic support has a center line surface roughness of from 0.5 to 7.0 nm on the side thereof to which the lower nonmagnetic layer is provided.

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