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41.发明专利Magnetoresistive element, magnetoresistive magnetic head, and magnetic tape unit 审中-公开磁电元件，磁性磁头和磁带单元
公开(公告)号：JP2005302846A
公开(公告)日：2005-10-27
申请号：JP2004113509
申请日：2004-04-07
Inventor： OGAWA KAZUYUKI
Abstract: PROBLEM TO BE SOLVED: To make leakage magnetic field small from a magnetization fixed layer without making the magnetization fixed layer into lamination ferrimagnetic structure.
SOLUTION: The magnetoresistive effect element comprises an antiferromagnetism layer 52; a magnetization fixed layer 53, where the magnetization is fixed in a predetermined direction by the switched connections magnetic field which works in-between with the antiferromagnetism layer 52; a free magnetization layer 55 whose magnetizing direction changes according to an external magnetic field; a spin valve film 50 constituted so as to laminate a nonmagnetic layer 54 which isolates magnetically between a magnetization fixed layer 53 and a free magnetization layers 55; permanent magnet films 57a, 57b for impressing a longitudinal bias magnetic field to the free magnetization layer 55 of the spin valve film 50; and electrode layers 58a, 58b for supplying sense current to the spin valve film 50. The size Lp in the height longitudinal direction of the antiferromagnetism layer 52 and the magnetization fixed layer 53 consisting of the spin valve film 50 is made larger than the size Lf in the height longitudinal direction of the free magnetization layer 55.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：使磁化固定层的泄漏磁场小，而不使磁化固定层成为叠层铁磁结构。 解决方案：磁阻效应元件包括反铁磁层52; 磁化固定层53，其中磁化通过在与反铁磁层52之间工作的开关连接磁场在预定方向上固定; 磁化方向根据外部磁场而变化的自由磁化层55; 一个自旋阀膜50被构造成层叠在磁化固定层53和自由磁化层55之间磁性隔离的非磁性层54; 用于将纵向偏置磁场施加到自旋阀膜50的自由磁化层55的永磁体膜57a，57b; 以及用于向自旋阀膜50提供感测电流的电极层58a，58b。反铁磁层52的高度方向的尺寸Lp和由自旋阀膜50组成的磁化固定层53的尺寸大于尺寸Lf 在自由磁化层55的高度纵向方向上。（C）2006年，JPO＆NCIPI
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42.发明专利Magnetic head device, rotary head device, magnetic tape unit, magnetic disk unit, magnetic recording method 审中-公开磁头装置，旋转头装置，磁带单元，磁盘单元，磁记录方法
公开(公告)号：JP2005276359A
公开(公告)日：2005-10-06
申请号：JP2004090322
申请日：2004-03-25
Inventor： OGAWA KAZUYUKI
CPC classification number: G11B5/3113 , G11B5/29
Abstract: PROBLEM TO BE SOLVED: To enable narrowing of tracks of a recording track formed on a magnetic recording medium. SOLUTION: The magnetic head device 1 which is scanned against a magnetic recording medium is equipped with a plurality of recording head elements 4 which are stacked on a base 2 through insulating layers 3. The plurality of recording head elements 4 are formed such that among a pair of magnetic core layers 21a and 23a which are placed opposite via a magnetic gap G, a dimension of a first magnetic core layer 23a located at a preceding side in a head scanning direction in the track width direction may become smaller than the dimension of the second magnetic core layer 21a located at a opposite side in the track width direction. Also, adjoining edges of the first magnetic core layers 23a are arranged by shifting in the direction orthogonal to the stacked direction so that they may overlap only predetermined width seeing from stacked direction. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：为了使形成在磁记录介质上的记录轨道的轨迹变窄。 解决方案：对磁记录介质进行扫描的磁头装置1配备有多个记录头元件4，其通过绝缘层3堆叠在基座2上。多个记录头元件4形成为 在通过磁隙G相对设置的一对磁芯层21a和23a之间，位于磁道宽度方向上的磁头扫描方向上的前一侧的第一磁芯层23a的尺寸可以变得小于 位于轨道宽度方向相对侧的第二磁芯层21a的尺寸。 此外，第一磁芯层23a的相邻边缘通过沿与堆叠方向正交的方向移动而布置，使得它们可以仅从堆叠方向观察到预定宽度重叠。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2004164755A
公开(公告)日：2004-06-10
申请号：JP2002330025
申请日：2002-11-13
Inventor： OGAWA KAZUYUKI , OSUE TADASHI
CPC classification number: G11B5/3977
Abstract: PROBLEM TO BE SOLVED: To reduce side erasure by recording magnetic field fringing even in a linear recording method and to achieve high density recording.
SOLUTION: A magnetic recording and reproducing device is equipped with a first magnetic head 12a which has a lower core 24 and an upper core 25 formed in a width less or equal to the lower core 24 and performs recording to a first magnetic track formed in a longitudinal direction of a magnetic tape 4 when the magnetic tape 4 travels to one direction; a second magnetic head 12b which has a lower core 24 and an upper core 25 formed in the width less or equal to the lower core to the lower core 24 and performs recording to the other magnetic tracks formed in parallel to the first magnetic track of the magnetic tape 4 when the magnetic tape 4 travels to the other direction; and a reproducing head 13 arranged between the first and second magnetic heads 12. The first and second magnetic heads 12 as well as the reproducing head 13 are arranged in parallel to the traveling direction of the magnetic tape 4, and the first and second magnetic heads 12 are arranged so that the upper core 25 becomes advance side to the traveling direction of the magnetic tape 4 when performing recording to the magnetic track.
COPYRIGHT: (C)2004,JPO-
公开(公告)号：JP2004127457A
公开(公告)日：2004-04-22
申请号：JP2002292862
申请日：2002-10-04
Inventor： OGAWA KAZUYUKI , OSUE TADASHI , MIYAUCHI SADAICHI
CPC classification number: G11B5/3116 , G11B5/00813 , G11B5/187
Abstract: PROBLEM TO BE SOLVED: To suppress occurrence of side-erasure when azimuth recording is performed on a magnetic recording medium. SOLUTION: In a medium-opposing plane 20a of a thin film magnetic head 20 of an inductive type, a magnetic gap G is arranged obliquely to a direction orthogonally intersecting the scanning direction of the head in accordance with an azimuth angle while an upper part magnetic core layer 25 is positioned at a leading side preceding a lower part magnetic core layer 24 in the scanning direction of the head. A projection part 24a of the lower part magnetic core layer 24 side constitutes tilt planes 30a, 30b tilted by angles θ 1 , θ 2 in which at least one side plane of the track width direction forms an angle equal to or greater than an azimuth angle, one ends 31a, 31b of a side being adjacent to the magnetic gap G of a projection part 25a of the upper part magnetic core layer 25 side are positioned on the extending lines S 1 , S 2 of this tilt planes 30a, 30b. COPYRIGHT: (C)2004,JPO
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公开(公告)号：JPS6472674A
公开(公告)日：1989-03-17
申请号：JP22843887
申请日：1987-09-14
Applicant: SONY CORP
Inventor： NAKANO KENJI , OGAWA KAZUYUKI
Abstract: PURPOSE:To automatically and continuously print out an objective picture as a clear hard copy by providing a printer with which a picture memory is equipped and which alternately executes communication by means of a VTR and a two-way bus line. CONSTITUTION:The VTR 10 to which a marker signal is added in a prescribed position on a video track formed in the oblique direction of a magnetic table while a video signal is recorded and reproduced is provided, and the marker signal is detected by the VTR 10 by queue search, whereby the objective video track is set to a reproduction state from the detection place. The VTR 10 and the color printer 20 are connected by the two-way bus line 40 in such a way that the video signal concerned is transferred to the field memory of the color printer 20 when the video signal to which the marker signal is added by the reproduction state, and a printing action is set to start at such a time. Thus, an optional video screen is automatically selected by simple operability and it can be outputted as a clear color print.
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Patent Agency Ranking46.发明专利Magnetoresistive effect element, magnetoresistance effect magnetic head, and magnetic tape unit 审中-公开电磁效应元件，磁阻效应磁头和磁带单元
公开(公告)号：JP2005286065A
公开(公告)日：2005-10-13
申请号：JP2004097025
申请日：2004-03-29
Inventor： OGAWA KAZUYUKI , SEKINE MASAAKI , HAYATA YUTAKA
Abstract: PROBLEM TO BE SOLVED: To improve the linearity and symmetry of a comprehensive resistance variation of a spin valve film.
SOLUTION: When the maximum value ΔRAMR
MAX of the resistance variation ΔRAMR, caused by the AMR effect of the spin valve film 50 becomes 10% or higher to a maximum value ΔRGMR
MAX of the resistance variation ΔRGMR caused by a GMR effect, the magnetization direction M
P of a magnetized fixed bed 53 is set so that it inclines only at a predetermined angle θ, in the direction of applying a vertical bias magnetic field in the direction of the height length.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：提高自旋阀膜综合电阻变化的线性和对称性。 解决方案：当由自旋阀膜50的AMR效应引起的电阻变化ΔRAMR的最大值ΔRAMR
MAX 变为10％或更高至最大值ΔRGMR MAX < 磁化固定床53的GMR效应，磁化方向M P 引起的电阻变化ΔRGMR的/ SB>设定为使其仅在施加方向上以预定角度θ倾斜 在高度方向上的垂直偏置磁场。 版权所有（C）2006，JPO＆NCIPI -
公开(公告)号：JP2004264895A
公开(公告)日：2004-09-24
申请号：JP2003028352
申请日：2003-02-05
Inventor： TAKIMOTO YUJI , OGAWA KAZUYUKI , SUGIMOTO YOSHIYO , SATO MAKOTO
CPC classification number: H04N21/4147 , G06F17/30864 , H04N5/445 , H04N21/435 , H04N21/4622 , H04N21/4828 , H04N21/84
Abstract: PROBLEM TO BE SOLVED: To enable a user to select a predetermined content such as a content to be reproduced or a content to be purchased further efficiently and rapidly. SOLUTION: When a power supply is instructed to be turned on, key information and additive information stored in a key/additive information storage part 122 are read. The read key information and the additive information are transmitted to an Internet server 53 and a home server 64 to request a retrieval of a content based on them. The information showing the retrieval result is acquired by a display data generation part 123, and a picture by the display data generated based on the retrieval result is displayed on a display 82. The user can selectively watch a predetermined content from a list displayed on the display 82. This invention is applicable to an information processor such as a personal computer capable of reproducing the content or various pieces of home electric equipment. COPYRIGHT: (C)2004,JPO&NCIPI
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公开(公告)号：JPH06350649A
公开(公告)日：1994-12-22
申请号：JP15623293
申请日：1993-06-02
Applicant: SONY CORP
Inventor： ISHIMARU HIROYOSHI , SHIMA HISATO , OGAWA KAZUYUKI , KOJIMA TAKASHI
IPC: H04L7/08 , H04L12/28 , H04L12/853 , H04L12/951 , H04N7/24 , H04N19/00 , H04N19/42 , H04N19/423 , H04N19/46 , H04N19/625 , H04N19/65 , H04N19/70 , H04N19/85 , H04N19/89 , H04L12/56 , H04N7/13
Abstract: PURPOSE:To make a block in the unit of blocks and a block of a packet coincident with each other and to establish frame synchronization in the system in which data in the unit of blocks are converted in packets and the packet is communicated via a channel having a communication cycle asynchronously with the period of the blocks. CONSTITUTION:Data of a track T1 are sequentially accommodated in packets DP1, DP2, ... DP26. A timing B1 of a tail end of the packet DP26 accommodating final data of the track T1 having a difference (b) from the timing of the final data is compared with a timing C1 delayed by the difference (a) between one track period and 26 communication cycles and when the timing B1 is faster than the timing C1, an idle packet is inserted next to the DP26. Furthermore, time information is sampled in the timing of a frame synchronization pulse and set to the DP1 at a sender side and the receiver side compares the time information with time information of the receiver side to generate a frame synchronization pulse.
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公开(公告)号：JPH06243599A
公开(公告)日：1994-09-02
申请号：JP3229293
申请日：1993-02-22
Applicant: SONY CORP
Inventor： OGAWA KAZUYUKI , SHIMA HISATO , INOUE HAJIME , ISHIMARU HIROYOSHI
IPC: G11B20/12 , G11B20/18 , H03M13/00 , H04N5/92 , H04N19/42 , H04N19/423 , H04N19/426 , H04N19/60 , H04N19/65 , H04N19/85 , H04N7/133
Abstract: PURPOSE:To save the memory capacity. CONSTITUTION:The input data of a transmission format are supplied and written in the input port IN1 of a RAM 41A, and are supplied to an error detector 42A. By the error detector 42A, the error correction data of a certain data frame are outputted for a next frame interval. The error correction data and the data read out to the output port OUT1 of the RAM 41A by adjusting to the output of the error correction data are supplied to an OR circuit 43A, and the error correction data from the OR circuit 43A are supplied and written in the input port IN2 of the RAM 41A. The error correction data of respective buffering units are read out to the output port 0UT2 of the RAM 41A with 18. 1MHz clock to obtain the data of a signal processing format. The memory capacity is saved since the memory for format conversion is shared with the memory for error correction.
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公开(公告)号：JPH06208777A
公开(公告)日：1994-07-26
申请号：JP32862192
申请日：1992-11-13
Applicant: SONY CORP
Inventor： OGAWA KAZUYUKI , SHIMA HISATO , KAWAMURA HARUMI , SAWADA TAKASHI
Abstract: PURPOSE:To realize high speed still picture communication by providing two types of cassettes, i.e., one cassette having a large capacity memory for storing both content information and still picture information and the other cassette having a small capacity memory for storing only the content information. CONSTITUTION:A non-volatile RAM 31 and a RAM controller 32 are built in a tape cassette 1. When the cassette 1 is loaded to a VTR 14, connecting terminals establish a communication path between a microcomputor 33 of the VTR 14 and the RAM controller 32. When a still picture display is requested, the microcomputor 33 delivers a command for reading the still picture data at high speed to the RAM controller 32 along with a start address and end address. The RAM controller 32 reads out a designated still picture data from the RAM 31 and transmits the still picture data to the VTR 14 at high communication rate. Upon finishing the communication, the RAM controller 32 returns back to low communication rate.
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