公开(公告)号：US4788672A

公开(公告)日：1988-11-29

申请号：US888006

申请日：1986-07-22

申请人： Takashi Toyooka ,  Norio Ohta ,  Yutaka Sugita ,  Kazuo Shigematsu ,  Atsushi Saito

发明人： Takashi Toyooka ,  Norio Ohta ,  Yutaka Sugita ,  Kazuo Shigematsu ,  Atsushi Saito

IPC分类号： G11B27/00 ,  G06F3/06 ,  G06F3/08 ,  G11B7/00 ,  G11B7/0055 ,  G11B7/30 ,  G11B9/10 ,  G11B11/105 ,  G11B19/02 ,  G11B19/04 ,  G11B27/32

CPC分类号： G11B7/0055 ,  G11B11/10517 ,  G11B11/10595 ,  G11B19/02 ,  G11B19/04 ,  G11B27/329 ,  G11B9/10 ,  G11B2220/216 ,  G11B2220/2525

摘要： In case of rewriting data by means of an erasable optical disc memory recording new data after having erased a series of data already stored, directory data written in an optical disc memory in order to control the written data are transferred to an external directory memory and write-in and read-out are controlled by using the directory memory. For rewriting data, which have been already recorded and which are recorded under a specified file name, the data are not erased and renewed data are written in another recording region, where recording is possible. The data, which have become unnecessary as the result of renewal, are erased during a period of time, when the optical disc memory is not accessed.

摘要翻译： 在擦除已经存储的一系列数据之后通过记录新数据的可擦除光盘存储器重写数据的情况下，写入光盘存储器中以便控制写入数据的目录数据被传送到外部目录存储器并写入 - 通过使用目录存储器来控制和读出。 为了重写已经记录的数据，以及在指定的文件名下记录的数据，数据不被擦除，并且更新的数据被写入可以进行记录的另一个记录区域中。 由于更新结果而变得不必要的数据在光盘存储器未被访问的时间段内被擦除。

公开(公告)号：US4550388A

公开(公告)日：1985-10-29

申请号：US636671

申请日：1984-08-01

申请人： Takashi Toyooka ,  Kazutoshi Yoshida ,  Kazuhiro Ishida ,  Tatsuo Okahashi ,  Hirokazu Aoki ,  Ryo Suzuki ,  Yutaka Sugita

发明人： Takashi Toyooka ,  Kazutoshi Yoshida ,  Kazuhiro Ishida ,  Tatsuo Okahashi ,  Hirokazu Aoki ,  Ryo Suzuki ,  Yutaka Sugita

IPC分类号： G11C11/14 ,  G11C19/08

CPC分类号： G11C19/085

摘要： In a magnetic bubble memory device in which magnetic bubbles are propagated under influence of a rotating magnetic field, a method of controlling a stop operation of a rotating magnetic field in which magnetic field is caused to further rotate beyond the stop direction for a predetermined over-rotation angle and is then caused to return to the stop direction which is followed by the removal of the magnetic field, is presented. The over-rotation angle is in a range of 10 to 40 degrees. The invention is applicable whether bubble drive is performed using a drive current of triangular, square or trapezoidal waveform.

摘要翻译： 在其中磁场在旋转磁场的影响下传播的磁性气泡存储装置中，一种控制使磁场进一步旋转超过停止方向的旋转磁场的停止操作的方法， 旋转角度，然后使其返回到停止方向，随后是去除磁场。 过旋转角度在10〜40度的范围内。 本发明适用于是否使用三角形，正方形或梯形波形的驱动电流进行气泡驱动。

公开(公告)号：US4538242A

公开(公告)日：1985-08-27

申请号：US511334

申请日：1983-07-06

申请人： Takashi Toyooka ,  Aoki Hirokazu ,  Mamoru Sugie ,  Yutaka Sugita

发明人： Takashi Toyooka ,  Aoki Hirokazu ,  Mamoru Sugie ,  Yutaka Sugita

IPC分类号： G11C11/14 ,  G11C19/08

CPC分类号： G11C19/0866

摘要： A signal processing circuit for a magnetic bubble memory device is arranged to set a reference level for determining the level of "1" or "0" of the bubble sensing line signal during a period in which only a read signal corresponding to level "0" appears as the output signal of a differential amplifier of the bubble detector circuit.

摘要翻译： 用于磁性气泡存储器件的信号处理电路被设置成在仅仅对应于电平“0”的读取信号的周期中设置用于确定气泡检测线信号的“1”或“0”的电平的参考电平 显示为气泡检测器电路的差分放大器的输出信号。

公开(公告)号：US4707755A

公开(公告)日：1987-11-17

申请号：US832884

申请日：1986-02-26

申请人： Norio Ohta ,  Shigenori Okamine ,  Yutaka Sugita ,  Yosuke Seo ,  Takashi Tamura

发明人： Norio Ohta ,  Shigenori Okamine ,  Yutaka Sugita ,  Yosuke Seo ,  Takashi Tamura

IPC分类号： G11B5/127 ,  G11B11/105 ,  G11B11/10

CPC分类号： G11B5/1278 ,  G11B11/10534 ,  G11B11/10547

摘要： An optical read-out magnetic head of a single pole type having a main pole, an auxiliary pole, and a writing coil. The main pole consists of a high permeability film and a magneto-optical film, the magneto-optical film has an easy magnetization axis parallel to or in the extension direction of that film surface high permeability film. Writing is carried out magnetically by employing the coil, and reproduction is effected optically by employing the magneto-optic film.

摘要翻译： 具有主极，辅助极和写入线圈的单极型光读出磁头。 主极由高磁导率膜和磁光膜组成，磁光膜具有与该膜表面高磁导率膜平行或延伸方向的易磁化轴。 通过使用线圈进行磁性写入，并且通过采用磁光膜进行光学再现。

公开(公告)号：US4604577A

公开(公告)日：1986-08-05

申请号：US462765

申请日：1983-02-01

申请人： Hiroyoshi Matsumura ,  Toshio Katsuyama ,  Norio Ohta ,  Tsuneo Suganuma ,  Kazuyuki Nagatsuma ,  Yutaka Sugita

发明人： Hiroyoshi Matsumura ,  Toshio Katsuyama ,  Norio Ohta ,  Tsuneo Suganuma ,  Kazuyuki Nagatsuma ,  Yutaka Sugita

IPC分类号： G01R33/032 ,  G02F1/00 ,  G02F1/09 ,  G01R33/02 ,  G02B5/30

CPC分类号： G02F1/0036 ,  G01R33/0322

摘要： A measuring instrument of magnetic field utilizing Faraday rotation is disclosed in which a medium exhibiting Faraday rotation includes at least one thin magnetic garnet film magnetized in a propagation direction of light and having a composition expressed by a general formula R.sub.3-x Q.sub.x (Fe.sub.5-y M.sub.y)O.sub.12 (where R indicates at least one element selected from a group consisting of Y, La, Lu, Ca, Sm and Bi, Q indicates at least one element selected from a group consisting of Gd, Eu, Er, Tm, Tb, Yb, Ho and Dy, M is at least one element selected from a group consisting of Ga, Al, Ge, Si, Sc, Mn, In, V and Cr, the value of x lies in a range expressed by a formula 0.1.ltoreq.x.ltoreq.3.0, and the value of y lies in a range expressed by a formula 0.ltoreq.y.ltoreq.5.0). According to this instrument, stable measured values are obtained independently of temperature variation.

摘要翻译： 公开了利用法拉第旋转的磁场测量仪器，其中显示法拉第旋转的介质包括在光传播方向上被磁化并具有通式R3-xQx（Fe5-yMy）表示的组成的至少一个薄磁石榴石薄膜， O12（其中R表示选自Y，La，Lu，Ca，Sm和Bi中的至少一种元素，Q表示选自由Gd，Eu，Er，Tm，Tb，Yb组成的组中的至少一种元素） ，Ho和Dy，M是选自Ga，Al，Ge，Si，Sc，Mn，In，V和Cr中的至少一种元素，x的值在由式0.1表示的范围内， = x <= 3.0，y的值位于由公式0表示的范围内。 根据该仪器，独立于温度变化获得稳定的测量值。

公开(公告)号：US4476152A

公开(公告)日：1984-10-09

申请号：US465298

申请日：1983-02-09

申请人： Ryo Imura ,  Tadashi Ikeda ,  Norio Ohta ,  Teruaki Takeuchi ,  Yutaka Sugita

发明人： Ryo Imura ,  Tadashi Ikeda ,  Norio Ohta ,  Teruaki Takeuchi ,  Yutaka Sugita

IPC分类号： G11C11/14 ,  H01F41/14 ,  H01F41/18 ,  H01F41/34 ,  B05D3/06

CPC分类号： H01F41/34 ,  H01F41/14 ,  H01F41/186

摘要： Hydrogen ion is implanted twice or more at different acceleration voltages into desired portions of a magnetic film holding magnetic bubbles to form a magnetic bubble propagation path. This ensures production of an ion-implanted device having a sufficiently large anisotropic magnetic field parallel to the magnetic film and a high Curie temperature.

摘要翻译： 将氢离子在不同的加速电压下注入两次或更多次，以保持在保持磁性气泡的磁性膜的所需部分中以形成磁性气泡传播路径。 这确保了具有与磁性膜平行的足够大的各向异性磁场和高居里温度的离子注入装置的生产。

公开(公告)号：US4532180A

公开(公告)日：1985-07-30

申请号：US471806

申请日：1983-03-03

申请人： Norio Ohta ,  Keikichi Ando ,  Yuzuru Hosoe ,  Yutaka Sugita ,  Fumihiko Ishida

发明人： Norio Ohta ,  Keikichi Ando ,  Yuzuru Hosoe ,  Yutaka Sugita ,  Fumihiko Ishida

IPC分类号： C01G49/02 ,  C01G49/00 ,  G11C11/14 ,  H01F10/24 ,  G11B5/64

CPC分类号： H01F10/24 ,  Y10S428/90 ,  Y10S428/91 ,  Y10T428/265

摘要： The invention relates to a garnet film for an ion-implanted device characterized in that the quantity of Fe is increased and a predetermined quantity of Gd is added.The garnet film of the invention has a sufficiently high Curie temperature without sacrificing its other properties and hence is extremely suitable as a garnet film for an ion-implanted device.

摘要翻译： 本发明涉及一种用于离子注入装置的石榴石膜，其特征在于Fe的量增加并且加入预定量的Gd。 本发明的石榴石膜具有足够高的居里温度，而不牺牲其它性能，因此作为离子注入装置的石榴石膜非常适合。

公开(公告)号：US4622264A

公开(公告)日：1986-11-11

申请号：US543423

申请日：1983-10-19

申请人： Yuzuru Hosoe ,  Norio Ohta ,  Keikichi Andoo ,  Yutaka Sugita

发明人： Yuzuru Hosoe ,  Norio Ohta ,  Keikichi Andoo ,  Yutaka Sugita

IPC分类号： G11C11/14 ,  C30B29/28 ,  H01F10/24

CPC分类号： H01F10/24 ,  Y10S428/90 ,  Y10T428/26 ,  Y10T428/265

摘要： A garnet film for use in magnetic bubble devices that supports magnetic bubbles with a bubble diameter of 0.4 micron or less. The curie temperature can be made over 240.degree. C., and the garnet film used is suitable for ion implanted devices.

摘要翻译： 用于支持气泡直径为0.4微米或更小的气泡的磁性气泡装置的石榴石膜。 居里温度可以在240℃以上，所用的石榴石膜适用于离子注入装置。

公开(公告)号：US4581579A

公开(公告)日：1986-04-08

申请号：US545643

申请日：1983-10-26

申请人： Kazuyuki Nagatsuma ,  Hiroyoshi Matsumura ,  Tsuneo Suganuma ,  Norio Ohta ,  Keikichi Ando ,  Yuzuru Hosoe ,  Yutaka Sugita

发明人： Kazuyuki Nagatsuma ,  Hiroyoshi Matsumura ,  Tsuneo Suganuma ,  Norio Ohta ,  Keikichi Ando ,  Yuzuru Hosoe ,  Yutaka Sugita

IPC分类号： G01R33/032 ,  G02F1/09 ,  G01R33/02 ,  G02B5/30 ,  G02F1/29 ,  G02F1/31

CPC分类号： G01R33/0322

摘要： In a magnetic-field measuring apparatus having a Faraday rotation property, a medium having the Faraday rotation property includes at least one magnetic garnet thin film having a composition represented by a general formula of R.sub.3 (Fe.sub.5-x M.sub.x)O.sub.12 (where R is at least one element selected from a group consisting of La, Sm, Lu, Ca and Bi, or at least two elements selected from the group with Y being added thereto, M is at least one element selected from a group consisting of Ga, Ge, Al, Si, Sc, In and Cr, and a range of x is 0.ltoreq.x.ltoreq.1.5), and magnetized in a direction of light transmission, whereby an overall temperature characteristic of a ratio (4.pi.Ms/Ho) of a saturation flux density 4.pi.Ms to a collapse field Ho of a strip domain of the thin film is improved. The magnetic-field measuring apparatus offers a stable measurement of magnetic-field irrespective of a temperature change.

摘要翻译： 在具有法拉第旋转特性的磁场测量装置中，具有法拉第旋转特性的介质包括至少一种具有由通式R3（Fe5-xMx）O12表示的组成的磁性石榴石薄膜（其中R至少为 选自La，Sm，Lu，Ca和Bi中的一种元素，或选自添加有Y的基团中的至少两种元素，M为选自Ga，Ge，Al中的至少一种元素 ，Si，Sc，In和Cr，x的范围为0

公开(公告)号：US4397912A

公开(公告)日：1983-08-09

申请号：US278700

申请日：1981-06-29

申请人： Norio Ohta ,  Keikichi Ando ,  Yuzuru Hosoe ,  Yutaka Sugita

发明人： Norio Ohta ,  Keikichi Ando ,  Yuzuru Hosoe ,  Yutaka Sugita

IPC分类号： G11C11/14 ,  C01G49/00 ,  H01F10/24 ,  H01F41/28 ,  G11B5/64

CPC分类号： H01F10/24 ,  H01F41/28 ,  Y10S428/90 ,  Y10S428/91 ,  Y10T428/265

摘要： Herein disclosed is a magnetic garnet film for a magnetic bubble element, in which the temperature changing rate of a bubble collapse field is reduced by Gd and Ga and in which the operating characteristics of the bubbles are improved by La and Lu. The temperature coefficient of the bubble collapse field is -0.24 to 0%/.degree. C., and the operating characteristics are remarkably excellent, therefore, this garnet film is suitable for the small bubbles with a diameter smaller than or equal to 1 .mu.m.

摘要翻译： 这里公开了一种用于磁性气泡元件的磁性石榴石膜，其中气泡塌陷场的温度变化率通过Gd和Ga降低，并且其中通过La和Lu改善气泡的操作特性。 气泡塌陷场的温度系数为-0.24〜0％/℃，操作特性明显优异，因此该石榴石薄膜适用于直径小于等于1μm的小气泡。