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1. 发明授权

US4400337A Method for production of metal magnetic particles 失效
标题翻译：金属磁性颗粒的生产方法
公开(公告)号：US4400337A
公开(公告)日：1983-08-23
申请号：US337149
申请日：1982-01-05
申请人： Yukihiro Hayashi , Toshinobu Sueyoshi , Shigeo Hirai , Mikio Kishimoto , Katsunori Tashita , Masahiro Amemiya
发明人： Yukihiro Hayashi , Toshinobu Sueyoshi , Shigeo Hirai , Mikio Kishimoto , Katsunori Tashita , Masahiro Amemiya
IPC分类号： H01F1/06 , C04B15/14
CPC分类号： H01F1/065 , H01F1/061
摘要： A method for the production of uniform acicular metal magnetic particles comprising predominantly iron which have excellent magnetic characteristics and are useful as a recording element for a magnetic recording medium, said method comprising the steps of coating the surface of metal compound particles containing predominantly acicular iron oxyhydroxide or iron oxides with at least one member selected from the group consisting of an aluminum compound and a silicon compound, pelletizing the coated particles, and reducing the pellets with heating under reducing atmosphere, e.g. under hydrogen stream.
摘要翻译：一种生产均匀的针状金属磁性颗粒的方法，其主要是铁，其具有优异的磁特性并且可用作磁记录介质的记录元件，所述方法包括以下步骤：涂覆主要为针状羟基氧化铁的金属化合物颗粒的表面或具有选自铝化合物和硅化合物中的至少一种的氧化铁，造粒涂覆颗粒，并在还原气氛下加热还原颗粒，例如在氢气流下。

2. 发明授权

US4390361A Process for preparing ferromagnetic particles comprising metallic iron 失效
标题翻译：制备包含金属铁的铁磁颗粒的方法
公开(公告)号：US4390361A
公开(公告)日：1983-06-28
申请号：US272722
申请日：1981-06-11
申请人： Toshinobu Sueyoshi , Shigeo Hirai , Masahiro Amemiya
发明人： Toshinobu Sueyoshi , Shigeo Hirai , Masahiro Amemiya
IPC分类号： B22F1/02 , B22F9/22 , H01F1/06 , B22F1/00 , A01F1/02
CPC分类号： B22F1/02 , B22F9/22 , H01F1/065 , Y10S428/90 , Y10T428/12181 , Y10T428/2991 , Y10T428/2993 , Y10T428/2995
摘要： A process for preparing ferromagnetic iron particles comprising metallic iron as the major component by reduction of particles of an iron oxide under heating, characterized in that the iron oxide particles are provided with a first coating layer containing at least one metal compound chosen from compounds of aluminum, zinc and alkaline earth metals at the surfaces and a second coating layer containing at least one silicon compound thereon before the reduction, whereby the coated particles are prevented from sintering and breaking upon reduction so as to give ferromagnetic particles of metallic iron having excellent magnetic characteristics.
摘要翻译：一种通过在加热下还原氧化铁颗粒来制备包含金属铁作为主要成分的铁磁性铁颗粒的方法，其特征在于，所述氧化铁颗粒设置有含有至少一种选自铝化合物的金属化合物的第一涂层，表面处的锌和碱土金属和在还原之前在其上含有至少一种硅化合物的第二涂层，从而防止涂覆的颗粒在还原时被烧结和断裂，从而得到具有优异磁特性的金属铁铁磁性颗粒。

3. 发明授权

US4456475A Process for preparing ferromagnetic particles comprising metallic iron 失效
标题翻译：制备包含金属铁的铁磁颗粒的方法
公开(公告)号：US4456475A
公开(公告)日：1984-06-26
申请号：US516432
申请日：1983-07-25
申请人： Shigeo Hirai , Toshinobu Sueyoshi , Masahiro Amemiya
发明人： Shigeo Hirai , Toshinobu Sueyoshi , Masahiro Amemiya
IPC分类号： H01F1/06
CPC分类号： H01F1/065
摘要： A process for preparing ferromagnetic particles comprising metallic iron as the major component by oxidizing Fe(OH).sub.2 in an aqueous medium adjusted to a pH of not less than 11 with gaseous oxygen to produce particles of .alpha.-FeOOH, optionally followed by dehydration of the .alpha.-FeOOH particles under heating to produce particles of .alpha.-Fe.sub.2 O.sub.3, and reducing the .alpha.-FeOOH or .alpha.-Fe.sub.2 O.sub.3 particles under heating, characterized in that (1) the aqueous medium at the oxidation step comprises at least one metal compound chosen from compounds of alkaline earth metals, zinc and aluminum and (2) the coating of a silicon compound is applied to the .alpha.-FeOOH or .alpha.-Fe.sub.2 O.sub.3 particles before the reduction step, whereby the ferromagnetic particles of metallic iron having enhanced magnetic characteristics are obtained.
摘要翻译：通过用气态氧将调节至pH不低于11的水性介质中的Fe（OH）2氧化以产生α-FeOOH颗粒，制备包含金属铁作为主要成分的铁磁颗粒的方法，任选地随后脱水 α-FeOOH颗粒在加热下产生α-Fe 2 O 3颗粒，并在加热下还原α-FeOOH或α-Fe2O3颗粒，其特征在于：（1）氧化步骤中的水性介质包含至少一种选自化合物的碱土金属，锌和铝，和（2）在还原步骤之前，将α-FeOOH或α-Fe2O3颗粒涂覆到硅化合物上，由此获得具有增强的磁特性的金属铁的铁磁颗粒。

4. 发明授权

US5252380A Acicular alloy containing magnetic recording medium 失效
标题翻译：针状合金含磁记录介质
公开(公告)号：US5252380A
公开(公告)日：1993-10-12
申请号：US825402
申请日：1992-01-24
申请人： Tetuya Nakazumi , Mikio Kishimoto , Toshinobu Sueyoshi , Seigi Kawarai
发明人： Tetuya Nakazumi , Mikio Kishimoto , Toshinobu Sueyoshi , Seigi Kawarai
IPC分类号： C22C33/02 , G11B5/706 , G11B5/714 , G11B5/00
CPC分类号： G11B5/714 , C22C33/0285 , G11B5/70621 , Y10S428/90 , Y10T428/24355 , Y10T428/25 , Y10T428/256 , Y10T428/257 , Y10T428/265 , Y10T428/2991
摘要： An acicular alloy base magnetic powder comprising iron and cobalt, which has an average particle long axis size of not larger than 0.25 .mu.m, an axial ratio of from 4 to 8, a cobalt content of from 8 to 50% by weight based on the weight of iron and saturation magnetization of at least 120 emu/g after being kept standing at the temperature of 60.degree. C. and relative humidity of 90% for a week, which has improved corrosion resistance and can provide a magnetic recording medium suitable for recording in the short wavelength range.
摘要翻译：包含铁和钴的针状合金基磁性粉末，其平均粒子长轴尺寸不大于0.25μm，轴向比为4至8，钴含量为8至50重量％，基于在60℃的温度和90％的相对湿度下保持静置一周之后，铁和饱和磁化强度至少为120emu / g，这具有改善的耐腐蚀性，并且可以提供适合于记录的磁记录介质在短波长范围内。

5. 发明授权

US5648160A Magnetic powder, method for producing the same and use of the same 失效
标题翻译：磁粉，其制造方法及其用途
公开(公告)号：US5648160A
公开(公告)日：1997-07-15
申请号：US557174
申请日：1996-03-14
申请人： Mikio Kishimoto , Shinichi Kitahata , Hisao Kanzaki , Noriaki Ohtani , Toshinobu Sueyoshi
发明人： Mikio Kishimoto , Shinichi Kitahata , Hisao Kanzaki , Noriaki Ohtani , Toshinobu Sueyoshi
IPC分类号： G06K19/02 , G11B5/706 , G11B5/716 , H01F1/047 , H01F1/06
CPC分类号： H01F1/047 , G06K19/02 , G11B5/70605 , G11B5/70626 , G11B5/716 , H01F1/06 , H01F1/061 , Y10S283/904 , Y10S428/90 , Y10T428/256 , Y10T428/265 , Y10T428/2991 , Y10T428/2993
摘要： A magnetic powder containing MnBi, in which an average particle size of the magnetic powder is from 0.1 .mu.m to 20 .mu.m; a coercive force is from 3000 to 15,000 Oe at 300 K. and 50 to 1000 Oe at 80 K. when measured with applying a magnetic field of 16 KOe; an amount of magnetization is from 20 emu/g to 60 emu/g when measured at 300 K. with applying a magnetic field of 16 KOe; a degree of decrease of an amount of magnetization is 40% or less after being maintained in an atmosphere of 60.degree. C. and 90% RH for 7 days; and a content of metal bismuth (Bi) satisfies the following equation: Metal Bi/(MnBi+metal Bi)
摘要翻译： PCT No.PCT / JP95 / 00731 Sec。 371日期：1996年3月14日 102（e）1996年3月14日PCT PCT 1995年4月14日PCT公布。 WO95 / 28718 PCT公开号日期：1995年10月26日磁体粉末的平均粒径为0.1μm〜20μm的含有MnBi的磁性粉末; 当采用16KOe的磁场测量时，矫顽力在300K时为3000至15,000Oe，在80K时为50至1000Oe; 当在300K下测量时，磁化强度为20emu / g至60emu / g，施加16KOe的磁场; 在60℃和90％RH的气氛中保持7天后，磁化强度的降低程度为40％以下。金属铋（Bi）的含量满足下式：金属Bi /（MnBi +金属Bi）<0.5，其中“金属Bi”是指在X射线衍射图中分配给（012）面的峰面积 Bi，MnBi表示在MnBi的X射线衍射图中分配给（101）面的峰面积，该磁粉具有优异的耐腐蚀性，并且饱和磁化强度非常小，并且具有磁性可以防止记录数据改变的记录介质。

6. 发明授权

US5260132A Acicular alloy magnetic powder 失效
标题翻译：针状合金磁粉
公开(公告)号：US5260132A
公开(公告)日：1993-11-09
申请号：US701059
申请日：1991-05-16
申请人： Tetuya Nakazumi , Mikio Kishimoto , Toshinobu Sueyoshi , Seigi Kawarai
发明人： Tetuya Nakazumi , Mikio Kishimoto , Toshinobu Sueyoshi , Seigi Kawarai
IPC分类号： B32B1/00 , G11B5/00
CPC分类号： B32B1/00 , G11B5/00 , Y10S428/90 , Y10T428/2991
摘要： An acicular alloy base magnetic powder comprising iron and cobalt, which has an average particle long axis size of not larger than 0.25 .mu.m, an axial ratio of from 4 to 8, a cobalt content of from 8 to 50% by weight based on the weight of iron and saturation magnetization of at least 120 emu/g after being kept standing at the temperature of 60.degree. C. and relative humidity of 90% for a week, which has improved corrosion resistance and can provide a magnetic recording medium suitable for recording in the short wavelength range.
摘要翻译：包含铁和钴的针状合金基磁性粉末，其平均粒子长轴尺寸不大于0.25μm，轴向比为4至8，钴含量为8至50重量％，基于在60℃的温度和90％的相对湿度下保持静置一周之后，铁和饱和磁化强度至少为120emu / g，这具有改善的耐腐蚀性，并且可以提供适合于记录的磁记录介质在短波长范围内。

7. 发明授权

US4956220A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4956220A
公开(公告)日：1990-09-11
申请号：US28570
申请日：1987-03-20
申请人： Toshinobu Sueyoshi , Seiichi Asada , Masahiro Amemiya , Seigi Kawarai , Akira Miyake
发明人： Toshinobu Sueyoshi , Seiichi Asada , Masahiro Amemiya , Seigi Kawarai , Akira Miyake
IPC分类号： G11B5/706 , G11B5/712
CPC分类号： G11B5/70615 , G11B5/712 , Y10S428/90 , Y10T428/24355 , Y10T428/256 , Y10T428/257 , Y10T428/2991 , Y10T428/2993
摘要： A magnetic recording medium with improved output characteristics and durability is provided by using magnetic powder comprising iron-containing particles each of which carries a compound containing aluminum and/or a compound containing silicon in such amounts that, in the whole magnetic powder, a weight ratio of silicon to iron is from 0.010:1 to 0.150:1, a weight ratio of aluminum to iron is from 0.040:1 to 0.150:1, and a weight ratio of aluminum to silicon is from 1:1 to 15:1.
摘要翻译：通过使用包含含铁颗粒的磁性粉末提供具有改善的输出特性和耐久性的磁记录介质，每个含铁颗粒携带含有铝和/或含硅化合物的化合物，其量在整个磁粉中的重量比的硅与铁的重量比为0.010:1至0.150:1，铝与铁的重量比为0.040:1至0.150:1，铝与硅的重量比为1:1至15:1。

8. 发明授权

US06926794B2 Information carrier and process for production thereof 失效
标题翻译：信息载体及其生产方法
公开(公告)号：US06926794B2
公开(公告)日：2005-08-09
申请号：US10270001
申请日：2002-10-15
申请人： Kyouichi Kohama , Ryuzo Fukao , Wasao Takasugi , Kazuhiko Daido , Toshinobu Sueyoshi
发明人： Kyouichi Kohama , Ryuzo Fukao , Wasao Takasugi , Kazuhiko Daido , Toshinobu Sueyoshi
IPC分类号： G06K19/02 , G06K19/077 , G06K19/06
CPC分类号： G06K19/02 , G06K19/07749 , H01L2224/16 , H01L2924/00014 , Y10T428/21 , Y10T428/216 , Y10T428/22 , Y10T428/23 , Y10T428/237 , Y10T428/239 , Y10T428/24331 , Y10T428/24868 , H01L2224/0401
摘要： The present invention provides an information carrier which has flat surfaces, is excellent in beautiful appearance and permits beautiful necessary printing, and a production process which permits easy and inexpensive production of such an information carrier. An IC chip 1 and a coil 2 connected to the IC chip are embedded in a substrate 3 composed of a nonwoven fabric. The IC chip and the coil are held between two nonwoven fabrics produced according to a conventional production procedure. The laminate of the nonwoven fabrics is fed to a roller or a press and the two nonwoven fabrics are hot-pressed, whereby their mating surfaces are joined with or without an adhesive (including low-melting synthetic resin fiber) incorporated into the webs. After positioning of the coil in the thus obtained raw product of information carrier, the laminate of the nonwoven fabrics and cover sheets is cut to obtain an information carrier of predetermined shape and size.
摘要翻译：本发明提供一种信息载体，其具有平坦的表面，外观美观并且允许美丽的必要打印，以及允许这种信息载体容易且便宜地生产的制造方法。连接到IC芯片的IC芯片1和线圈2嵌入由无纺布构成的基板3中。 IC芯片和线圈保持在根据常规生产程序制造的两个无纺布之间。将无纺布的层叠体供给到辊或压机中，并且对两个无纺布进行热压，由此其配合表面与或不与粘合剂（包括低熔点合成树脂纤维）结合到纤维网中来连接。将线圈定位在如此得到的信息载体的原料中之后，切断无纺布和覆盖片的层压体，得到规定形状和尺寸的信息载体。

9. 发明授权

US4364988A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4364988A
公开(公告)日：1982-12-21
申请号：US61253
申请日：1979-07-27
申请人： Haruo Andoh , Susumu Kitaoka , Toshinobu Sueyoshi , Hikaru Ishida , Akira Kato
发明人： Haruo Andoh , Susumu Kitaoka , Toshinobu Sueyoshi , Hikaru Ishida , Akira Kato
IPC分类号： G11B5/706 , G11B5/70
CPC分类号： G11B5/70642 , G11B5/70673 , Y10S428/90 , Y10T428/24942 , Y10T428/257
摘要： An improved magnetic recording medium is disclosed, particularly a magnetic tape suitable for sound recording and video recording, which comprises as a recording element a mixture of cobalt-containing iron oxide magnetic particles consisting essentially of ferromagnetic iron oxide particles containing cobalt and optionally a divalent iron in the most outer layer thereof, and .gamma.-ferric oxide particles in the ratio of 10:90 to 50:50 by weight, said mixture of cobalt-containing iron oxide magnetic particles and .gamma.-ferric oxide particles being applied to a substrate (e.g. a polyester film) with a binding agent. The magnetic recording medium has excellent electromagnetic transducing properties and improved charging properties and is useful for conventional magnetic recording apparatus used at normal position with high sensitivity in wide range of frequency.
摘要翻译：公开了一种改进的磁记录介质，特别是适用于录音和视频记录的磁带，其包括作为记录元件的含钴氧化铁磁性颗粒的混合物，其主要由含有钴的铁磁性氧化铁颗粒和任选的二价铁组成在其最外层和按重量比例为10:90至50:50的γ-氧化铁颗粒，将所述含钴氧化铁磁性颗粒和γ-氧化铁颗粒的混合物施加到基底（例如，聚酯薄膜）。磁记录介质具有优异的电磁感应特性和改善的充电特性，对于在宽频率范围内具有高灵敏度的正常位置使用的常规磁记录装置是有用的。

10. 发明授权

US06482495B1 Information carrier and process for production thereof 失效
标题翻译：信息载体及其生产方法
公开(公告)号：US06482495B1
公开(公告)日：2002-11-19
申请号：US08814921
申请日：1997-03-12
申请人： Kyouichi Kohama , Ryuzo Fukao , Wasao Takasugi , Kazuhiko Daido , Toshinobu Sueyoshi
发明人： Kyouichi Kohama , Ryuzo Fukao , Wasao Takasugi , Kazuhiko Daido , Toshinobu Sueyoshi
IPC分类号： G06K1906
CPC分类号： G06K19/02 , G06K19/07749 , H01L2224/16 , H01L2924/00014 , Y10T428/21 , Y10T428/216 , Y10T428/22 , Y10T428/23 , Y10T428/237 , Y10T428/239 , Y10T428/24331 , Y10T428/24868 , H01L2224/0401
摘要： The present invention provides an information carrier which has flat surfaces, is excellent in beautiful appearance and permits beautiful necessary printing, and a production process which permits easy and inexpensive production of such an information carrier. An IC chip 1 and a coil 2 connected to the IC chip are embedded in a substrate 3 composed of a nonwoven fabric. The IC chip and the coil are held between two nonwoven fabrics produced according to a conventional production procedure. The laminate of the nonwoven fabrics is fed to a roller or a press and the two nonwoven fabrics are hot-pressed, whereby their mating surfaces are joined with or without an adhesive (including low-melting synthetic resin fiber) incorporated into the webs. After positioning of the coil in the thus obtained raw product of information carrier, the laminate of the nonwoven fabrics and cover sheets is cut to obtain an information carrier of predetermined shape and size.
摘要翻译：本发明提供一种信息载体，其具有平坦的表面，外观美观并且允许美丽的必要打印，以及允许这种信息载体容易且便宜地生产的制造方法。连接到IC芯片的IC芯片1和线圈2嵌入由无纺布构成的基板3中。 IC芯片和线圈保持在根据常规生产程序制造的两个无纺布之间。将无纺布的层叠体供给到辊或压机中，并且对两个无纺布进行热压，由此其配合表面与或不与粘合剂（包括低熔点合成树脂纤维）结合到纤维网中来连接。将线圈定位在如此得到的信息载体的原料中之后，切断无纺布和覆盖片的层压体，得到规定形状和尺寸的信息载体。

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