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公开(公告)号：GB2167597A
公开(公告)日：1986-05-29
申请号：GB8529056
申请日：1985-11-26
Applicant: SONY CORP
Inventor： KOBAYASHI TOMIO , KANO SHOICHI , MANIWA OSAMU , KONNO SEIKI , SATO HEIKICHI
Abstract: A magnetic transducer head wherein confronting surfaces of a pair of magnetic core parts comprised of a ferromagnetic oxide material are notched, and the notch defining surfaces have metallic ferromagnetic layers supported thereby. The method of physical vapor deposition as known per se is used for forming these layers. The transducer coupling gap of each magnetic head is defined by an aligned pair of pole piece layers formed from the deposited metallic ferromagnetic material. The pole piece layers are inclined at a preset angle with respect to the plane of the coupling gap, and have extensions formed of the deposited metallic ferromagnetic material presenting bend contours between the pole piece layers and the lateral sides of the core parts.
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公开(公告)号：DE3541762A1
公开(公告)日：1986-05-28
申请号：DE3541762
申请日：1985-11-26
Applicant: SONY CORP
Inventor： KOBAYASHI TOMIO , KANO SHOICHI , MANIWA OSAMU , KONNO SEIKI , SATO HEIKICHI
Abstract: A magnetic transducer head wherein confronting surfaces of a pair of magnetic core parts comprised of a ferromagnetic oxide material are notched, and the notch defining surfaces have metallic ferromagnetic layers supported thereby. The method of physical vapor deposition as known per se is used for forming these layers. The transducer coupling gap of each magnetic head is defined by an aligned pair of pole piece layers formed from the deposited metallic ferromagnetic material. The pole piece layers are inclined at a preset angle with respect to the plane of the coupling gap, and have extensions formed of the deposited metallic ferromagnetic material presenting bend contours between the pole piece layers and the lateral sides of the core parts.
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公开(公告)号：DE3511361A1
公开(公告)日：1985-10-10
申请号：DE3511361
申请日：1985-03-28
Applicant: SONY CORP
Inventor： KUBOTA MAKOTO , KUMURA TATSUO , SAITO JUNICHI , KOBAYASHI TOMIO , SATO HEIKICHI
Abstract: A magnetic transducer head in which the magnetic core elements of ferromagnetic oxides are sliced obliquely across the junction surface of the core elements, ferromagnetic metal thin films are formed on the resulting inclined surfaces by employing a physical vapor deposition, and the core elements are placed with the respective ferromagnetic metal thin films abutting to each other for defining a magnetic gap therebetween, wherein the improvement consists in that said inclined surfaces with the ferromagnetic metal thin films formed thereon are inclined at a preset angle with the magnetic gap forming surface, in that non-magnetic films having high-hardness are interposed between the ferromagnetic oxide and the ferromagnetic metal thin films, and in that said ferromagnetic metal thin films and the oxide glass fillers are provided on the tape abutment surface by the intermediary of the non-magnetic film having high-hardness. The provision of the non-magnetic film having high-hardness between the ferromagnetic oxide and the ferromagnetic metal thin film is effective to inhibit the reaction otherwise occurring between the oxide and the films, while positively preventing the formation of the boundary layer with inferior magnetic properties. Likewise, the provision of the non-magnetic film having high-hardness between the ferromagnetic metal thin film and the oxide glass is effective to prevent the erosion of the film by the molten glass, while also improving the molten glass fluidity. It should be noted that the non-magnetic films having high-hardness may be provided on the interface only between the core elements and the metal thin films or on the interface only between the metal thin films and the oxide glass.
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公开(公告)号：GB2153581A
公开(公告)日：1985-08-21
申请号：GB8432443
申请日：1984-12-21
Applicant: SONY CORP
Inventor： KOBAYASHI TOMIO , SATO HEIKICHI , KUBOTA MAKOTO , KANO SHOICHI , KUMURA TATSUO , YAMAUCHI KAZUSHI , TAKAHASHI YOSHIMI , SAITO JUNICHI , KONNO SEIKI , MANIWA OSAMU
Abstract: A magnetic transducer head comprises a first magnetic core element 80 and a second magnetic core element 81, each comprising a magnetic ferrite block and a magnetic metal thin film 82 integrated with the magnetic ferrite block. The core elements 80 and 81 have a first planar surface and a second planar surface. The magnetic metal thin film 82 is provided on the second planar surface and has an edge thereof facing the first planar surface, and the second planar surface is inclined with respect to the first planar surface. The core elements 80 and 81 are bonded together to form an operating magnetic gap g between the edge of the magnetic metal thin film 82 on the first core element 80 and the edge of the magnetic metal thin film 82 on the second core element 81, and the magnetic metal thin film 82 on the first core element 80 and the magnetic thin film 82 on the second core element 81 are formed in one common plane.
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Patent Agency Ranking
公开(公告)号：CA1033456A
公开(公告)日：1978-06-20
申请号：CA220516
申请日：1975-02-20
Applicant: SONY CORP
Inventor： KOBAYASHI TOMIO , NOZAWA KAZUO
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公开(公告)号：JP2009140528A
公开(公告)日：2009-06-25
申请号：JP2007312923
申请日：2007-12-03
Inventor： KOBAYASHI TOMIO , KUDO TAKAO , HAYASHIBE KAZUYA , SUZUKI YUSUKE , KANESAKA TOMOKI , FUKUSHIMA YOSHIHITO , UCHIYAMA HIROSHI
Abstract: PROBLEM TO BE SOLVED: To provide an optical information recording medium that can increase the recording speed. SOLUTION: The optical information recording medium includes a recording layer 121 that has a recording area 121a on which a cavity is formed as a recording mark RM as a result of an increase in temperature around a focal point after absorbing a recording beam L2c converged for recording of information and having a predetermined energy value in accordance with the wavelength of the recording beam L2c and from which, when a predetermined reading beam L2d is emitted for reproducing of the information, the information is reproduced based on an optically modulated returned beam L3. Further, the recording layer 121 has a non-recording area 121b which is provided adjacent to the recording area 121a and on which the recording mark RM is not formed when the recording beam L2c is radiated. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：提供可以提高记录速度的光学信息记录介质。 解决方案：光学信息记录介质包括记录层121，其具有作为记录标记RM的记录区域121a，作为记录标记RM的吸收记录光束L2c之后的焦点周围的温度升高的结果 会聚用于记录信息并且根据记录光束L2c的波长具有预定的能量值，并且当为了再现信息而发出预定的读取光束L2d时，基于光调制的返回光束再现信息 L3。 此外，记录层121具有与记录区域121a相邻设置的非记录区域121b，并且当记录光束L2c被辐射时不在其上形成记录标记RM。 版权所有（C）2009，JPO＆INPIT
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50.发明专利Resin material for optical recording, its production method, and optical recording medium 审中-公开用于光学记录的树脂材料，其生产方法和光学记录介质
公开(公告)号：JP2008261928A
公开(公告)日：2008-10-30
申请号：JP2007102823
申请日：2007-04-10
Inventor： KOBAYASHI TOMIO
Abstract: PROBLEM TO BE SOLVED: To provide: a resin material for optical recording, which has excellent transparency, a strong matrix, and highly reliable resistance to storage environment even at a high temperature and a high humidity; a method for producing the resin material for optical recording, in which it is easy to control the production conditions of the resin material, thereby being excellent in economical advantage; and an optical recording medium using the resin material for optical recording. SOLUTION: The resin material for optical recording is composed of: a matrix resin in which an epoxy resin cured by an acid anhydride forms a network structure; a photopolymerizable monomer dispersed in gaps of the network structure of the matrix resin; and a photoinitiator. The resin material for optical recording with which a diffraction efficiency of ≥50% can be obtained by hologram recording using a light having an intensity of ≤50 J/cm 2 is used in a recording layer 5 of the optical recording medium 1A. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：提供：即使在高温和高湿度下，具有优异的透明性，强矩阵和高度可靠的耐储存环境的用于光学记录的树脂材料; 制造用于光学记录的树脂材料的方法，其中易于控制树脂材料的生产条件，从而具有优异的经济性; 以及使用了用于光学记录的树脂材料的光学记录介质。 解决方案：用于光学记录的树脂材料由以下组成：其中由酸酐固化的环氧树脂形成网状结构的基体树脂; 分散在基体树脂的网状结构的间隙中的光聚合性单体; 和光引发剂。 在使用强度为≤50J/ cm 2的光的全息图记录可以获得衍射效率≥50％的用于光学记录的树脂材料
2用于记录层5中 光记录介质1A。 版权所有（C）2009，JPO＆INPIT
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