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71. 发明专利

JPS62274080A PLASMA TREATMENT 失效
公开(公告)号：JPS62274080A
公开(公告)日：1987-11-28
申请号：JP11456286
申请日：1986-05-21
申请人： HITACHI LTD
发明人： KOKADO YUICHI , KITO MAKOTO , HONDA YOSHINORI
IPC分类号： C23C14/02 , B29C59/14 , C23C16/50 , C23F4/00
摘要： PURPOSE:To efficiently carry out the title plasma treatment at high speed by increasing the plasma working area of a counter electrode for a rotating electrode which is in contact with a film at the time of continuously plasma- treating the surface of the long-sized film. CONSTITUTION:The inside of a vacuum vessel 1 is evacuated to a vacuum, gaseous Ar is introduced from an inlet 12, and the long-sized film 6 to be plasma-treated is wound on a rotating electrode 8 and transferred to a winding roll 9 from a delivery roll 7. A plasma treating chamber 3 having the counter electrode 11 is provided at a part of the rotating electrode 8, a high-frequency voltage of 100kHz-100MHz is impressed between the grounded rotating electrode 8 and the counter electrode 11 by a high-frequency voltage impressing device 4 to generate Ar plasma, and the surface of the film 6 is plasma-treated. In this case, the ratio S2/S1 of the area S1 of the part of the rotating electrode 8 which is in contact with the plasma to the area S2 of the part of the counter electrode 11 which is in contact with the plasma is made higher than unity to increase the plasma treatment efficiency, and the film 6 can be plasma-treated at high speed.

72. 发明专利

JPS62247076A METHOD FOR COATING PLASTIC PIPE 失效
公开(公告)号：JPS62247076A
公开(公告)日：1987-10-28
申请号：JP8796186
申请日：1986-04-18
申请人： HITACHI LTD
发明人： TAKEMOTO KAZUNARI , KITO MAKOTO
IPC分类号： C08J7/00 , C08J7/04 , C23C16/50 , C23C16/54
摘要： PURPOSE:To uniformly coat the inside of a plastic pipe by plasma polymn. by introducing a polymerizable gas into the central part of the pipe in a direction parallel to the pipe and by causing electric discharge among electrodes for impressing high voltage and earthed electrodes arranged alternately along the pipe. CONSTITUTION:A PVC pipe 7 is placed in a reaction tube 1, the tube 1 is evacuated to a prescribed degree of vacuum and a polymerizable gas such as tetramethylsilane is introduced into the pipe 7 to regulate the degree of vacuum. A prescribed high frequency is then impressed among electrodes 5 for impressing high voltage and earthed electrodes 6 arranged alternately along the tube 1. Thus, the polymerizable gas is uniformly distributed and a uniform plasma discharge state is obtd., so the thickness distribution of a coating film can be uniformized.

73. 发明专利

JPS62108051A PIPING FOR ULTRA-PURE WATER 失效
公开(公告)号：JPS62108051A
公开(公告)日：1987-05-19
申请号：JP24703885
申请日：1985-11-06
申请人： HITACHI LTD
发明人： TAKEMOTO KAZUNARI , KITO MAKOTO
IPC分类号： B32B27/28 , B32B1/08 , C08G61/00 , C08G61/02 , F16L9/12

74. 发明专利

JPS6288131A MAGNETIC DISK 失效
公开(公告)号：JPS6288131A
公开(公告)日：1987-04-22
申请号：JP22700185
申请日：1985-10-14
申请人： HITACHI LTD
发明人： HONDA YOSHINORI , KITO MAKOTO , KOKADO YUICHI
IPC分类号： G11B5/66 , G11B5/64 , G11B5/72 , G11B5/73 , G11B5/82
摘要： PURPOSE:To increase remarkably a life of a disk by providing an intermediate supporting layer consisting of an amorphous silicon and a silicon compound, between a magnetic layer and a carbon film. CONSTITUTION:A pressure in each chamber 1c, 1d is dropped to a prescribed pressure by holding substrates 3a, 3b by substrate electrodes 2a, 2b, respectively, and opening exhaust valves 10a, 10b, and also an Ar gas is led into each chamber 1c, 1d from Ar gas use leading-in pipes 8a, 8b by opening Ar gas flow rate adjusting valves 9a, 9b, and thereafter, the inside of each chamber 1c, 1d is set to a prescribed sputter pressure by adjusting the closing quantity of the exhaust valves 10a, 10b. Subsequently, when a DC voltage 11a is impressed between a target voltage 7a and the substrate electrode 2a, and an RF voltage 11b is impressed between the electrode 7a and the substrate electrode 2b, a glow discharge is generated between each electrode 7a, 2a, 7b and 2b, an intermediate layer target 4 and a carbon target 5 are brought to sputtering, and a thin film of a prescribed film thickness is formed on the substrates 3a, 3b. In this way, the wear resistance becomes extremely good.

75. 发明专利

JPS61137219A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：JPS61137219A
公开(公告)日：1986-06-24
申请号：JP25756384
申请日：1984-12-07
申请人： Hitachi Ltd
发明人： KOKADO YUICHI , HONDA YOSHINORI , KITO MAKOTO
IPC分类号： C23C14/00 , C09D161/06 , C09D165/02 , C09D165/04 , C09D171/12 , C09D177/00 , C09D179/08 , C10M107/40 , C10N40/18 , C23C14/12 , C23C14/14 , G11B5/64 , G11B5/66 , G11B5/72 , G11B5/725 , G11B5/73
CPC分类号： C08G2261/312
摘要： PURPOSE: To form a magnetic recording medium which has excellent lubricity in sliding with a head and has less wear by providing a composite layer of a sputtered layer consisting of an org. high-polymer compd. and fluorine-contg. lubricating oil layer.
CONSTITUTION: The org. high-polymer compd. layer 3 contg. carbon by a sputtering method using the org. high-polymer compd. as a target is provided on a magnetic layer 2 provided on a substrate 1 and further the lubricating oil layer 4 consisting of the fluorine-contg. lubricating oil is provided thereon. The heat resistant high polymer or thermosetting high polymer is preferably constituted of the element selected from C, H, O and N and includes, for example, polybenzoimidazole, etc.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：形成具有优异的润滑性的磁记录介质，其与头部滑动并具有较少的磨损，通过提供由组织构成的溅射层的复合层。高分子化合物和氟。润滑油层。构成：组织。高分子化合物第3层碳通过溅射法使用该组织。高分子化合物作为目标设置在设置在基板1上的磁性层2上，并且还包括由耐氟化合物构成的润滑油层4。在其上设置润滑油。耐热性高分子或热固性高分子优选由选自C，H，O和N的元素构成，包括例如聚苯并咪唑等。

76. 发明专利

JPS6199933A Production of magnetic disk 失效
标题翻译：磁盘生产
公开(公告)号：JPS6199933A
公开(公告)日：1986-05-19
申请号：JP21839484
申请日：1984-10-19
申请人： Hitachi Ltd
发明人： HONDA YOSHINORI , KOKADO YUICHI , KITO MAKOTO
IPC分类号： G11B5/72 , G11B5/64 , G11B5/73 , G11B5/82 , G11B5/85 , G11B5/851
摘要： PURPOSE: To improve the adhesive strength between a magnetic layer and protective film layer and to obtain a magnetic disk having high sliding resistance by depositing directly a blank material for the protective film on a magnetite layer and subjecting simultaneously these layers to a heat treatment.
CONSTITUTION: The adhesive strength between the magnetic layer and the protective film layer is small and the sliding resistance is poor if the protective film is formed on the magnetic layer and therefore the protective film layer is formed prior to the formation of the magnetic layer and the magnetite layer and the protective film layer are simultaneously subjected to the heat treatment, by which the high adhesive strength is provided to the protective film layer and such protective film layer is formed by baking onto the magnetic layer. More specifically, an aluminum alloy substrate 1 is treated by an anodization method to form an alumite layer 2 and after polishing and washing, the magnetite layer 3 is formed by sputtering. A secure reaction layer is formed at the boundary between the magnetic layer and the protective film layer by the chemical reaction of the magnetite layer with the protective film layer when the magnetite layer is changed by the heat treatment to the magnetic layer. The adhesive strength and sliding resistance are thus remarkably improved.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了提高磁性层和保护膜层之间的粘合强度，并通过在磁铁矿层上直接沉积保护膜的坯料并且同时对这些层进行热处理，获得具有高滑动阻力的磁盘。构成：如果在磁性层上形成保护膜，则磁性层与保护膜层之间的粘合强度小，滑动阻力差，因此在形成磁性层之前形成保护膜层，磁铁矿层和保护膜层同时进行热处理，通过该处理将高粘合强度提供到保护膜层，并且通过烘烤形成保护膜层到磁性层上。更具体地说，通过阳极氧化法对铝合金基板1进行处理以形成耐酸铝层2，在研磨和洗涤之后，通过溅射形成磁铁矿层3。当磁铁层通过热处理改变为磁性层时，通过磁铁矿层与保护膜层的化学反应，在磁性层和保护膜层之间的边界处形成安全的反应层。因此，粘合强度和滑动阻力显着提高。

77. 发明专利

JPS6117071B2 JPS6117071B2 - 失效
公开(公告)号：JPS6117071B2
公开(公告)日：1986-05-06
申请号：JP6392781
申请日：1981-04-30
申请人： Hitachi Ltd
发明人： HONDA YOSHINORI , KITO MAKOTO
IPC分类号： G11C11/14 , G11C19/08
CPC分类号： G11C19/085

78. 发明专利

JP2001256626A MAGNETIC HEAD 失效
公开(公告)号：JP2001256626A
公开(公告)日：2001-09-21
申请号：JP2001040002
申请日：2001-02-16
申请人： HITACHI LTD
发明人： KOKADO YUICHI , FUJIMAKI SHIGEHIKO , MATSUNUMA SATORU , TAKEMOTO KAZUNARI , KITO MAKOTO
IPC分类号： G11B5/60 , G11B5/584 , G11B5/596 , G11B11/105 , G11B21/21
摘要： PROBLEM TO BE SOLVED: To realize a magnetic disk device provided with an improved magnetic head, where damage in the sliding parts of both the head and the magnetic disk can be prevented and the change in a frictional coefficient can be reduced, when the sliding part is operated. SOLUTION: In the magnetic disk device provided with the floating type magnetic head, where a slider mounted with a magnetic recording and reproducing element floats over the magnetic disk rotating at a high speed, the magnetic recording and reproducing element is provided with the magnetic head forming a non-sliding surface and disposed close to a slider sliding surface and is coated with an amorphous carbon thin film containing hydrogen and having 1,500 Hv Vickers hardness or higher and the magnetic disk having a carbon thin film coated on a recording medium layer and having the same properties as those of the slider sliding surface of the magnetic head coated thereon as a protective layer.

79. 发明专利

JP2001256604A MAGNETIC DISK DEVICE 失效
公开(公告)号：JP2001256604A
公开(公告)日：2001-09-21
申请号：JP2001040005
申请日：2001-02-16
申请人： HITACHI LTD
发明人： KOKADO YUICHI , FUJIMAKI SHIGEHIKO , MATSUNUMA SATORU , TAKEMOTO KAZUNARI , KITO MAKOTO
IPC分类号： G11B5/72 , G11B5/187 , G11B5/255 , G11B5/60 , G11B21/21
摘要： PROBLEM TO BE SOLVED: To provide a magnetic disk device including an improved magnetic head, capable of preventing damages to both sliding parts of the head and a magnetic disk, and reducing a change in a friction coefficient during sliding. SOLUTION: This magnetic disk device is provided with a floating-type magnetic head for floating a slider, having a magnetic recording/reproducing element on a magnetic disk which rotates at a high speed. In this case, the magnetic recording/reproducing element is disposed close to the sliding surface of the slider while forming a non-sliding surface, and the sliding surface of the slider is provided with a magnetic head which is covered with an amorphous carbon thin film, containing hydrogen and having Vickers hardness of, 1,500 Hv or higher, and a magnetic disk covered with a carbon thin film in quality similar to that of one deposited on the slider sliding surface of the magnetic head on the recording medium layer thereof as a protective layer.

80. 发明专利

JPH11259837A MAGNETIC HEAD 失效
公开(公告)号：JPH11259837A
公开(公告)日：1999-09-24
申请号：JP1403599
申请日：1999-01-22
申请人： HITACHI LTD
发明人： KOKADO YUICHI , FUJIMAKI SHIGEHIKO , MATSUNUMA SATORU , TAKEMOTO KAZUNARI , KITO MAKOTO
IPC分类号： G11B5/60 , G11B5/187 , G11B21/21
摘要： PROBLEM TO BE SOLVED: To provide an improved magnetic head capable of preventing a damage on the sliding part of both of a head and a magnetic disk and reducing the change of a friction coefficient at the time of sliding. SOLUTION: In this floating magnetic head for which a slider loading a magnetic recording and reproducing element 3 floats on a magnetic disk rotating at a high speed, the magnetic recording and reproducing element is disposed adjacently to the sliding surface of the slider while forming a non-sliding surface and the amorphous carbon thin film of Vickers hardness >=1500 Hv containing hydrogen is coated on the sliding surface of the slider.

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