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61. 发明授权

US5811172A Magnetic recording medium 失效
公开(公告)号：US5811172A
公开(公告)日：1998-09-22
申请号：US845536
申请日：1997-04-25
申请人： Kiyomi Ejiri , Hiroo Inaba , Shinji Saito , Satoru Hayakawa
发明人： Kiyomi Ejiri , Hiroo Inaba , Shinji Saito , Satoru Hayakawa
IPC分类号： G11B5/66 , G11B5/70 , G11B5/716 , G11B5/733 , G11B5/738 , G11B5/842 , G11B5/848 , B32B3/10
CPC分类号： G11B5/848 , G11B5/70 , G11B5/716 , G11B5/733 , G11B5/738 , G11B5/842 , Y10S428/90 , Y10T428/12472 , Y10T428/24355 , Y10T428/24942 , Y10T428/25 , Y10T428/253 , Y10T428/256 , Y10T428/257 , Y10T428/258 , Y10T428/259 , Y10T428/265 , Y10T428/269 , Y10T428/31551 , Y10T428/31721 , Y10T428/31855
摘要： A magnetic recording medium is disclosed, comprising a non-magnetic support having provided thereon at least a lower non-magnetic layer comprising a binder having dispersed therein a non-magnetic powder and an upper magnetic layer comprising a binder having dispersed therein a ferromagnetic powder which has been coated on said lower non-magnetic layer while the lower non-magnetic layer is wet, wherein the upper magnetic layer has an average dry thickness (d) of not more than 1.0 .mu.m and an average thickness variation (.sup..DELTA. d) at the interface between the upper magnetic layer and lower non-magnetic layer is not more than d/2. The magnetic recording medium exhibits excellent electromagnetic characteristics, running properties, and durability.

62. 发明授权

US5756148A Magnetic recording medium 失效
公开(公告)号：US5756148A
公开(公告)日：1998-05-26
申请号：US761084
申请日：1996-12-04
申请人： Kiyomi Ejiri , Hiroo Inaba , Shinji Saito , Satoru Hayakawa
发明人： Kiyomi Ejiri , Hiroo Inaba , Shinji Saito , Satoru Hayakawa
IPC分类号： G11B5/66 , G11B5/70 , G11B5/716 , G11B5/733 , G11B5/738 , G11B5/842 , G11B5/848 , B05D5/12
CPC分类号： G11B5/848 , G11B5/70 , G11B5/716 , G11B5/733 , G11B5/738 , G11B5/842 , Y10S428/90 , Y10T428/12472 , Y10T428/24355 , Y10T428/24942 , Y10T428/25 , Y10T428/253 , Y10T428/256 , Y10T428/257 , Y10T428/258 , Y10T428/259 , Y10T428/265 , Y10T428/269 , Y10T428/31551 , Y10T428/31721 , Y10T428/31855
摘要： A magnetic recording medium is disclosed, comprising a non-magnetic support having provided thereon at least a lower non-magnetic layer comprising a binder having dispersed therein a non-magnetic powder and an upper magnetic layer comprising a binder having dispersed therein a ferromagnetic powder which has been coated on said lower non-magnetic layer while the lower non-magnetic layer is wet, wherein the upper magnetic layer has an average dry thickness (d) of not more than 1.0 .mu.m and an average thickness variation (.sup..DELTA. d) at the interface between the upper magnetic layer and lower non-magnetic layer is not more than d/2. The magnetic recording medium exhibits excellent electromagnetic characteristics, running properties, and durability.

63. 发明授权

US5318828A Magnetic recording medium having multiple magnetic layers comprising magnetic particles and polyurethane resins having glass transition temperatures within specified ranges 失效
标题翻译：磁记录介质具有多个包含磁性颗粒的磁性层和具有玻璃化转变温度在特定范围内的聚氨酯树脂
公开(公告)号：US5318828A
公开(公告)日：1994-06-07
申请号：US26164
申请日：1993-03-01
申请人： Hitoshi Noguchi , Shinji Saito , Hiroshi Ogawa
发明人： Hitoshi Noguchi , Shinji Saito , Hiroshi Ogawa
IPC分类号： G11B5/702 , C09D5/23 , C09D127/04 , C09D127/06 , C09D175/06 , G11B5/714 , G11B5/716 , G11B5/00
CPC分类号： G11B5/7021 , G11B5/716 , Y10S428/90 , Y10T428/24942 , Y10T428/24975 , Y10T428/256 , Y10T428/265 , Y10T428/3158 , Y10T428/31591 , Y10T428/31609 , Y10T428/31935
摘要： A magnetic recording medium is disclosed comprising a non-magnetic support having provided thereon a plurality of magnetic layers containing a ferromagnetic powder dispersed in a binder, wherein the lower magnetic layer closest to the support contains as the binder at least one polyurethane resin having a glass transition temperature (Tg) of from -50.degree. C. to -10.degree. C., and the uppermost magnetic layer contains as the binder at least one polyurethane resin having a glass transition temperature of from more than 40.degree. C. to 100 .degree. C.The magnetic recording medium of the present invention exhibits excellent running durability as well as electromagnetic conversion characteristics.
摘要翻译：公开了一种磁记录介质，其包括非磁性载体，其上设置有多个含有分散在粘合剂中的铁磁粉末的磁性层，其中最靠近载体的下磁性层含有至少一种具有玻璃的聚氨酯树脂作为粘合剂转变温度（Tg）为-50℃至-10℃，最上层的磁性层含有玻璃化转变温度高于40℃至100℃的至少一种聚氨酯树脂作为粘合剂本发明的磁记录介质具有优异的运行耐久性以及电磁转换特性。

64. 发明授权

US5057364A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US5057364A
公开(公告)日：1991-10-15
申请号：US549026
申请日：1990-07-06
申请人： Shinji Saito , Hiroshi Ogawa
发明人： Shinji Saito , Hiroshi Ogawa
IPC分类号： G11B5/71 , C09D5/23 , C09D127/04 , C09D127/06 , C09D175/00 , C09D175/04 , G11B5/708 , G11B5/73 , G11B5/78
CPC分类号： G11B5/7085 , Y10S428/90 , Y10T428/25 , Y10T428/257
摘要： A magnetic recording medium comprising a non-magnetic support having thereon at least one magnetic layer is disclosed, comprising a dispersion of ferromagnetic particles in a binder; said at least one magnetic layer comprising:(a) a surface comprising abrasive agents having a Mohs' hardness of 6 or more in an average amount of 0.3 to 1.4 particles/.mu.m.sup.2, and(b) a cutting cross section containing abrasive agents having a Mohs' hardness of 6 or more in an average amount of at least 0.1 particle/.mu.m.sup.2 greater than said average amount of abrasive agents contained on said surface.
摘要翻译：公开了一种包括其上具有至少一个磁性层的非磁性载体的磁记录介质，包括铁磁颗粒在粘合剂中的分散体; 所述至少一个磁性层包括：（a）包含平均0.3至1.4个/μm2的莫氏硬度为6或更大的磨料的表面，和（b）含有研磨剂的切割截面，平均量为至少0.1个/μm2的莫氏硬度大于所述表面上所含的所述磨料平均量的6个或更多的莫氏硬度。

65. 发明授权

US4937093A Method for measuring thickness of magnetic recording medium 失效
标题翻译：测量磁记录介质厚度的方法
公开(公告)号：US4937093A
公开(公告)日：1990-06-26
申请号：US374021
申请日：1989-06-30
申请人： Naoyoshi Chino , Shinji Saito , Toshihiko Miura
发明人： Naoyoshi Chino , Shinji Saito , Toshihiko Miura
IPC分类号： G01B15/02 , G01N23/223 , G11B5/84
CPC分类号： G11B5/84 , G01B15/02
摘要： A method for measuring the thickness of a multi-layer magnetic recording medium which provides a high accuracy and which can be used for continuous on-line monitoring of product thickness. First, first and second magnetic layers are simultaneously coated onto a running nonmagnetic support to form the recording medium. The first and second magnetic layers are made of materials having different responses to fluorescent X-rays. Then, the thickness of at least one of said first and second layers is measured by exposing the recording medium to fluorescent X-rays.
摘要翻译：一种用于测量多层磁记录介质的厚度的方法，其提供高精度并可用于产品厚度的连续在线监测。首先，将第一和第二磁性层同时涂覆在运行的非磁性载体上以形成记录介质。第一和第二磁性层由对荧光X射线具有不同响应的材料制成。然后，通过将记录介质暴露于荧光X射线来测量所述第一层和第二层中的至少一层的厚度。

66. 发明授权

US4927665A Simultaneous multi-layer coating method for manufacturing magnetic recording medium 失效
标题翻译：用于制造磁记录介质的同时多层涂布方法
公开(公告)号：US4927665A
公开(公告)日：1990-05-22
申请号：US420410
申请日：1989-10-12
申请人： Naoyoshi Chino , Tsunehiko Sato , Shinji Saito , Hiroshi Ogawa
发明人： Naoyoshi Chino , Tsunehiko Sato , Shinji Saito , Hiroshi Ogawa
IPC分类号： G11B5/842 , B05D1/36 , G11B5/702 , G11B5/716
CPC分类号： G11B5/716 , G11B5/7027 , Y10S428/90
摘要： A method for simultaneously forming a plurality of organic-solvent-based magnetic layers on a moving support for the manufacture of a magnetic recording medium or the like. The surface tension of a solvent used to form the uppermost of the layers is made lower than that of the other layers. The most preferred range of the surface tension of the solvent which forms the uppermost layer is in a range of 0.1 to 3 dynes.
摘要翻译：一种用于在用于制造磁记录介质等的移动支撑件上同时形成多个有机溶剂基磁性层的方法。使用于形成最上层的溶剂的表面张力低于其它层的表面张力。形成最上层的溶剂的表面张力的最优选范围为0.1〜3达因。

67. 发明授权

US4911951A Method for manufacturing magnetic recording medium 失效
标题翻译：磁记录介质的制造方法
公开(公告)号：US4911951A
公开(公告)日：1990-03-27
申请号：US250586
申请日：1988-09-29
申请人： Hiroshi Ogawa , Shinji Saito , Makoto Yoshimura , Shinichi Funabashi
发明人： Hiroshi Ogawa , Shinji Saito , Makoto Yoshimura , Shinichi Funabashi
IPC分类号： G11B5/716 , G11B5/842
CPC分类号： G11B5/716 , G11B5/842 , Y10S428/90
摘要： A method for manufacturing a magnetic recording medium comprising the steps of: (1) providing a lower layer comprising a ferromagnetic powder dispersed in a binder on a non-magnetic support and (2) providing an upper layer comprising a ferromagnetic powder dispersed in a binder on the lower layer, wherein a solvent used in a magnetic coating composition for the lower layer contains at least 30 wt % of an organic solvent having an evaporation rate index of less than 50; a solvent used in a magnetic coating composition for the upper layer contains from 0 to 40 wt % of an organic solvent having an evaporation rate index of less than 50; the content of an organic solvent having an evaporation rate index of less than 50 in the coating composition for the upper layer is smaller than that in the coating composition for the lower layer; the magnetic coating composition for the upper layer is coated while the lower layer is not dried; and when the lower and upper layers are dried until the total solvent content of the lower and upper layers is in the range of from 0.05 to 3 wt %, a calendering treatment is carried out.
摘要翻译：一种制造磁记录介质的方法，包括以下步骤：（1）提供包含在非磁性载体上分散在粘合剂中的铁磁粉末的下层，和（2）提供包含分散在粘合剂中的铁磁性粉末的上层在下层中，其中用于下层的磁性涂料组合物中使用的溶剂含有至少30重量％的蒸发速率指数小于50的有机溶剂; 用于上层磁性涂料组合物中的溶剂含有0至40重量％的蒸发速率指数小于50的有机溶剂; 在上层用涂料组合物中，蒸发率指数小于50的有机溶剂的含量小于下层用涂料组合物的含量; 涂布上层的磁性涂料组合物，同时不干燥下层; 并且当下层和上层被干燥直到下层和上层的总溶剂含量在0.05至3重量％的范围内时，进行压延处理。

68. 发明授权

US4897560A Semiconductor integrated circuit with reduced power consumption 失效
标题翻译：半导体集成电路降低功耗
公开(公告)号：US4897560A
公开(公告)日：1990-01-30
申请号：US190745
申请日：1988-05-05
申请人： Shinji Saito , Kazuyuki Nonaka , Hideji Sumi , Takehiro Akiyama
发明人： Shinji Saito , Kazuyuki Nonaka , Hideji Sumi , Takehiro Akiyama
IPC分类号： H03L7/18 , H03J5/02 , H03K3/2885 , H03K17/00 , H03K17/60 , H03K19/00 , H03K19/086
CPC分类号： H03J5/0272 , H03K17/603 , H03K3/2885 , H03K2217/0036
摘要： A semiconductor integrated circuit includes a logic circuit which has first and second transistors constituting an emitter coupled transistor pair and a third transistor which is used as a constant current source, a bias circuit which includes a fourth transistor having an emitter from which a first predetermined voltage is supplied to a base of the third transistor and an impedance having one end coupled to a first power source and another end coupled to a base of the fourth transistor to supply a second predetermined voltage thereto, and a clamping circuit. The clamping circuit is OFF and does not perform a clamping operation with respect to the base of the fourth transistor when the entire semiconductor integrated circuit needs to operate. When the entire semiconductor integrated circuit does not need to operate, the clamping circuit is ON to clamp the base potential of the fourth transistor so as to reduce the power consumption of the semiconductor integrate circuit.

69. 发明授权

US4728558A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4728558A
公开(公告)日：1988-03-01
申请号：US890342
申请日：1986-07-29
申请人： Toshio Ono , Yasuo Tamai , Chiaki Mizuno , Hiroshi Ogawa , Shinji Saito
发明人： Toshio Ono , Yasuo Tamai , Chiaki Mizuno , Hiroshi Ogawa , Shinji Saito
IPC分类号： C09D5/23 , C09D127/04 , C09D127/06 , C09D175/06 , G11B5/70 , G11B5/73 , G11B5/78
CPC分类号： G11B5/70 , G11B5/7305 , Y10S428/90 , Y10T428/24355 , Y10T428/265
摘要： A magnetic recording medium such as an audio-tape or a video-tape comprising a flexible support and a magnetic recording layer provided on one surface of said support, which is characterized in that the total of the thickness of said magnetic recording layer (dM) and the thickness of said support (dB), namely dM plus dB, is not larger than 14 .mu.m; the ratio of the thickness of said magnetic recording layer (dM) to the thickness of said support (dB), namely dM/dB, is in the range of 0.6-1.0; and said magnetic recording medium has F-3 tensile strength in the range of 6.0-8.5 kg/mm.sup.2.
摘要翻译：一种磁记录介质，例如音频带或录像带，包括设置在所述支撑体的一个表面上的柔性支撑和磁记录层，其特征在于，所述磁记录层（dM）的厚度总和并且所述载体的厚度（dB）即dM加dB不大于14μm; 所述磁记录层（dM）的厚度与所述支架的厚度的比（dB）即dM / dB在0.6-1.0的范围内; 并且所述磁记录介质的F-3拉伸强度在6.0-8.5kg / mm2的范围内。

70. 发明授权

US4649081A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4649081A
公开(公告)日：1987-03-10
申请号：US787776
申请日：1985-10-15
申请人： Hiroshi Ogawa , Shinji Saito , Chiaki Mizuno , Yasuo Tamai
发明人： Hiroshi Ogawa , Shinji Saito , Chiaki Mizuno , Yasuo Tamai
IPC分类号： G11B5/708 , C09D5/23 , C09D7/12 , G11B5/71 , G11B5/73
CPC分类号： G11B5/71 , Y10S428/90 , Y10T428/31663
摘要： A magnetic recording medium such as an audio-tape or a video-tape comprising a nonmagnetic support and a magnetic recording layer provided on said support, said magnetic recording layer comprising a ferromagnetic powder dispersed in a binder, which is characterized in that said magnetic recording layer comprises at least one modified silicon compound having molecular weight of less than 3,000 and at least one modified silicon compound having molecular weight of not less than 3,000.
摘要翻译：一种诸如音频带的磁记录介质或包括设置在所述支撑件上的非磁性支撑和磁记录层的录像带，所述磁记录层包括分散在粘合剂中的铁磁性粉末，其特征在于所述磁记录层包含分子量小于3,000的至少一种改性硅化合物和至少一种分子量不小于3,000的改性硅化合物。

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