公开(公告)号：US4835068A

公开(公告)日：1989-05-30

申请号：US113380

申请日：1987-10-27

Applicant: Yoshihiro Arai ,  Tadashi Yasunaga ,  Ryuji Shirahata

Inventor： Yoshihiro Arai ,  Tadashi Yasunaga ,  Ryuji Shirahata

IPC: G11B5/66 ,  C08L67/02 ,  G11B5/64 ,  G11B5/706 ,  G11B5/73 ,  G11B5/851

CPC classification number: G11B5/65 ,  G11B5/851 ,  Y10S428/90

Abstract: A magnetic recording medium comprises a non-magnetic substrate and a magnetic film which is formed on the non-magnetic substrate and the major component of which is iron nitride-oxide.

Abstract translation: 磁记录介质包括非磁性基板和形成在非磁性基板上的磁性膜，其主要成分是氧化铁 - 氧化物。

公开(公告)号：US4551778A

公开(公告)日：1985-11-05

申请号：US519641

申请日：1983-08-02

Applicant: Yoshihiro Arai ,  Akira Nahara

Inventor： Yoshihiro Arai ,  Akira Nahara

IPC: C10M107/38 ,  C10M171/00 ,  C10N40/18 ,  G11B5/64 ,  G11B5/72 ,  G11B5/725 ,  G11B5/84 ,  G11B5/74 ,  A23C9/12 ,  G11B5/78 ,  G11B23/00

CPC classification number: G11B5/72 ,  Y10S428/90 ,  Y10T428/24942 ,  Y10T428/265 ,  Y10T428/31 ,  Y10T428/3154 ,  Y10T428/31544

Abstract: A magnetic recording medium and a process for producing it is disclosed. The medium is comprised of a non-magnetic flexible support base and a magnetic layer formed on a surface of the support base. The magnetic layer is preferably in the form of a thin, ferromagnetic metal film formed by vapor deposition. An overcoat layer of a fluorine-containing organic material is formed directly on the magnetic layer. The fluorine content of the overcoat layer continuously and gradually decreases in the direction toward the magnetic layer. Accordingly, high fluorine content near the surface of the overcoat layer provides improved smoothness near the surface whereas the lower fluorine content near the interface of the overcoat with the magnetic layer allows for strong adhesion between the overcoat and the underlying magnetic layer substrate. The media is formed by providing the flexible support base, forming the magnetic layer on the surface of the support base and forming the overcoat layer on the magnetic layer by performing plasma polymerizations of a fluorine-free monomer gas and a fluorine-containing monomer gas with a time lag. The overcoat layer is formed such that the fluorine content continually increases in a direction away from the magnetic layer.

Abstract translation: 公开了一种磁记录介质及其制造方法。 介质由非磁性柔性支撑基座和形成在支撑基座的表面上的磁性层组成。 磁性层优选为通过气相沉积形成的薄的强磁性金属膜的形式。 含氟有机材料的外涂层直接形成在磁性层上。 外涂层的氟含量在朝向磁性层的方向上连续逐渐减小。 因此，外涂层表面附近的高氟含量在表面附近提供了改善的平滑度，而外涂层与磁性层界面附近的较低氟含量允许外涂层和下层磁性层基材之间的牢固粘合。 通过提供柔性支撑基底形成介质，在支撑基体的表面上形成磁性层，并通过执行无氟单体气体和含氟单体气体的等离子体聚合在磁性层上形成外涂层， 时间滞后 外涂层形成为使得氟含量在远离磁性层的方向上连续增加。

公开(公告)号：US4543275A

公开(公告)日：1985-09-24

申请号：US532817

申请日：1983-09-16

Applicant: Goro Akashi ,  Akira Nahara ,  Yoshihiro Arai

Inventor： Goro Akashi ,  Akira Nahara ,  Yoshihiro Arai

IPC: B05D1/28 ,  B05D7/24 ,  C08J7/06 ,  C23C14/12 ,  C23C14/24 ,  C23C14/56 ,  G11B5/64 ,  G11B5/72 ,  G11B5/851

CPC classification number: B05D1/60 ,  C23C14/12 ,  C23C14/24 ,  C23C14/562 ,  G11B5/72 ,  G11B5/851 ,  B05D1/286 ,  B05D2252/02

Abstract: A process for forming a vapor-deposited thin layer of organic material is disclosed. The process involves placing organic material on a support base within a vacuum chamber and providing a heat source in the vicinity of the organic material. A second support base is then provided within the vacuum chamber and heat is applied to the organic material at a temperature which causes the organic material to form vapors. The vapors are vapor-deposited on the second support base forming the thin layer of organic material. It is generally desirable to move both of the support bases during the vapor deposition process allowing the formation of a continuous uniform thin layer of organic material.

Abstract translation: 公开了一种用于形成气相沉积的有机材料薄层的方法。 该方法包括将有机材料放置在真空室内的支撑基底上，并在有机材料附近提供热源。 然后在真空室内提供第二支撑底座，并且在使有机材料形成蒸气的温度下将热量施加到有机材料上。 蒸汽蒸发沉积在形成有机材料薄层的第二支撑基底上。 通常期望在气相沉积过程中移动两个支撑基底，从而形成连续均匀的有机材料薄层。

公开(公告)号：US4495242A

公开(公告)日：1985-01-22

申请号：US364271

申请日：1982-04-01

Applicant: Yoshihiro Arai ,  Akira Nahara

Inventor： Yoshihiro Arai ,  Akira Nahara

IPC: G11B5/64 ,  G11B5/72 ,  G11B5/851 ,  B05D5/12

CPC classification number: G11B5/72 ,  G11B5/64 ,  G11B5/851 ,  Y10S428/90 ,  Y10T428/265

Abstract: A nonbinder type of magnetic recording medium is disclosed. The binder is comprised of a non-magnetic support having thereon, in sequence, a thin magnetic metal film laminated using the evaporation technique and a protecting film, with the thin magnetic metal film converted in its surface part alone to a metal oxide layer by being oxidized with oxygen plasma, to a metal nitride layer by being nitrided with nitrogen plasma or to a glow discharge-processed layer. The protecting film includes a high molecular weight compound, a higher fatty acid, a fatty acid ester or a combination thereof, laminated on the metal oxide layer, the metal nitride layer or the glow discharge-processed layer.

Abstract translation: 公开了一种非粘结型磁记录介质。 粘合剂由其上非依赖性地由使用蒸发技术层压的薄磁性金属薄膜和保护膜组成的非磁性载体构成，薄金属薄膜通过以下方式单独地在其表面部分转化为金属氧化物层： 通过用氮等离子体或辉光放电处理层氮化，将氧等离子体氧化成金属氮化物层。 保护膜包括层压在金属氧化物层，金属氮化物层或辉光放电处理层上的高分子量化合物，高级脂肪酸，脂肪酸酯或其组合。

公开(公告)号：US4374961A

公开(公告)日：1983-02-22

申请号：US268312

申请日：1981-05-29

Applicant: Kazushige Kudo ,  Yoshihiro Arai ,  Ryoichi Tsurutani ,  Shun-ichi Kiriyama

Inventor： Kazushige Kudo ,  Yoshihiro Arai ,  Ryoichi Tsurutani ,  Shun-ichi Kiriyama

IPC: C08G63/00 ,  C08G63/91 ,  C08G63/76

CPC classification number: C08G63/916

Abstract: This invention is a method of manufacturing heat-stable polyesters, characterized in that phosphonic acid compounds are added, when heat-stable polyesters with decreased terminal carboxyl groups are manufactured by reacting polyesters and cyclic carbonate compounds in the presence of an alkali halide compound catalyst.

Abstract translation: 本发明是一种制备热稳定性聚酯的方法，其特征在于当碱金属卤化物化合物催化剂存在下，使聚酯和环状碳酸酯化合物反应制备具有降低的末端羧基的热稳定性聚酯时，加入膦酸化合物。

公开(公告)号：US4358806A

公开(公告)日：1982-11-09

申请号：US143110

申请日：1980-04-23

Applicant: Yoshihiro Arai

Inventor： Yoshihiro Arai

IPC: G11B5/74 ,  G11B5/00 ,  G11B5/02 ,  G11B5/127 ,  G11B5/39 ,  G11B5/73 ,  G11B5/738 ,  G11B15/14 ,  G11B5/25 ,  G11B5/20

CPC classification number: G11B15/14 ,  G11B5/00 ,  G11B5/39

Abstract: A number of blocks made of a high magnetic permeability material are arranged in parallel with a very fine pitch on a non-magnetic substrate. A number of pairs of electrodes are provided to interpose the blocks therebetween. The pairs of electrodes are electrically connected with each other. A magnetic recording layer is provided adjacent to the blocks so that a part thereof is magnetized when the block adjacent thereto is excited. A pair of metal styluses or the like are put into contact with the electrodes and an electric current modulated with information is caused to flow through the styluses to excite the block interposed therebetween and magnetize the magnetic recording layer adjacent thereto when recording information. When reproducing the recorded information, a pair of metal styluses are put into contact with the opposite ends of the block and an electric current is caused flow through the block. The recorded information is read in the form of variation in electric current flowing therethrough or voltage thereacross obtained as the styluses are moved with respect to the recording medium along the direction in which the blocks are arranged.

Abstract translation: 由高磁导率材料制成的多个块在非磁性基板上以非常细的间距平行布置。 提供了多对电极以将块插入其间。 这对电极彼此电连接。 与块相邻地设置磁记录层，使得当与其相邻的块被激发时，其一部分被磁化。 一对金属触针等与电极接触，并且通过触针调制的电流流过触笔以激励插入其间的块，并且当记录信息时磁化与其相邻的磁记录层。 当再现记录的信息时，一对金属探针与块的相对端接触，并且电流流过块。 记录的信息以流过其中的电流的变化的形式读取，或者当触笔相对于记录介质沿着排列方向移动时获得的电压。