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1. 发明授权

US4814239A Vertical magnetic recording medium and method of manufacturing the same 失效
标题翻译：垂直磁记录介质及其制造方法
公开(公告)号：US4814239A
公开(公告)日：1989-03-21
申请号：US173247
申请日：1988-03-24
申请人： Kazuo Inoue , Motozo Yoshikiyo , Shizuka Yoshii , Iwao Okamoto
发明人： Kazuo Inoue , Motozo Yoshikiyo , Shizuka Yoshii , Iwao Okamoto
IPC分类号： G11B5/66 , G11B5/85 , G11B5/64
CPC分类号： G11B5/66 , G11B5/85 , Y10S428/90 , Y10T428/12465 , Y10T428/12493 , Y10T428/12931
摘要： A vertical magnetic recording medium excellent in durability and recording property in which a first magnetic film comprising Co--Cr or Co--Cr--W as the main ingredient is formed on a substrate and the second magnetic film comprising Co--Cr--W--C as the main ingredient is formed on the first magnetic film, as well as the production process therefor are provided.

2. 发明授权

US4618901A High density magnetic head 失效
标题翻译：高密度磁头
公开(公告)号：US4618901A
公开(公告)日：1986-10-21
申请号：US515135
申请日：1983-07-19
申请人： Iwao Hatakeyama , Yasushi Maeda , Osamu Ishii , Shizuka Yoshii
发明人： Iwao Hatakeyama , Yasushi Maeda , Osamu Ishii , Shizuka Yoshii
IPC分类号： G11B5/31 , G11B5/33 , G11B11/105 , G11B5/127
CPC分类号： G11B11/10547 , G11B5/3113 , G11B5/332
摘要： A magnetic head for digital signal recording/reproducing (FIG. 11) having a C-ring shaped core (11.1) with a gap (G) for introducing leakage flux of a recording medium, a conductor (11.2, Y) for generating bias flux in hard magnetization axis of the core (11.1), apparatus (10.3, 11.3) for illuminating the core (11.1) with polarized optical beam, apparatus (11.4) for analyzing beam reflected by the core to convert polarization rotation to optical strength, and photo-detector (12.5) for providing electrical output signal relating to optical strength. The core is small enough to have a single magnetic domain, and is magnetized in the whole area because of the presence of the bias flux in spite of weak leakage signal flux, thus, the core has the capability to amplify signal flux, thus, the present head has high sensitivity and is capable of detecting flux in small area to be used for high density recording higher than 8000 bits/mm.
摘要翻译：一种用于数字信号记录/再现的磁头（图11），具有用于引入记录介质的漏磁通的间隙（G）的C形环芯（11.1），用于产生偏置磁通的导体（11.2，Y）在磁芯的硬磁化轴（11.1）中，用偏振光束照射磁芯（11.1）的装置（10.3,11.3），用于分析由磁芯反射的光束将偏振旋转转换成光强度的装置（11.4）和照片 - 检测器（12.5），用于提供与光学强度相关的电输出信号。磁芯小到足以具有单个磁畴，并且由于存在弱漏电信号通量的偏置磁通而在整个区域被磁化，因此，磁芯具有放大信号通量的能力，因此，目前头灵敏度高，能够检测小面积的通量，用于高于8000位/ mm的高密度记录。

3. 发明授权

US4412902A Method of fabrication of Josephson tunnel junction 失效
标题翻译：约瑟夫逊隧道结的制造方法
公开(公告)号：US4412902A
公开(公告)日：1983-11-01
申请号：US390116
申请日：1982-06-18
申请人： Osamu Michikami , Yujiro Katoh , Keiichi Tanabe , Hisataka Takenaka , Shizuka Yoshii
发明人： Osamu Michikami , Yujiro Katoh , Keiichi Tanabe , Hisataka Takenaka , Shizuka Yoshii
IPC分类号： H01L39/24 , C23C15/00 , H01L39/22
CPC分类号： H01L39/2493 , Y10S505/817
摘要： There is disclosed a method of fabrication of a Josephson tunnel junction device. A surface of a base electrode of Nb or Nb compound is subjected to sputter cleaning and then to plasma oxidation in an atmosphere of a diluent gas and oxygen to form thereon an oxide layer serving as a tunnel barrier. A counter electrode is then formed on the oxide layer to provide the Josephson tunnel junction.
摘要翻译：公开了约瑟夫森隧道结装置的制造方法。对Nb或Nb化合物的基极的表面进行溅射清洗，然后在稀释气体和氧气的气氛中进行等离子体氧化，在其上形成用作隧道势垒的氧化物层。然后在氧化物层上形成对电极以提供约瑟夫逊隧道结。

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