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    • 72. 发明授权
    • Optical pickup apparatus and magneto-optical reproducing system
    • 光学拾取装置和磁光再现系统
    • US5394381A
    • 1995-02-28
    • US259934
    • 1994-06-13
    • Atsushi FukumotoMichio Oka
    • Atsushi FukumotoMichio Oka
    • G11B11/10G11B7/005G11B7/135G11B11/105G11B13/04
    • G11B7/1365G11B11/10515G11B11/10543G11B11/10576G11B7/005G11B7/1356G11B7/1395
    • An optical pickup apparatus of the present invention for reading out information signals recorded on an optical recording medium such as magneto-optical disc is adapted to split by means of a light splitting element a light beam emitted from a light source into two light beam travelling in different directions, which are linearly polarized in normally intersecting directions and to convert the phases of the vibrational components along normally intersecting two axes on a plane normally intersecting the traveling directions of the two light beams and to irradiate the recording medium with two light beams which are differently polarized so that two beam spots are partially superimposed with each other on the recording medium. The superimposed beam spot area which is a read out area is made smaller than one of the beam spots in size so that a high resolution read-out is performed.
    • 用于读出记录在诸如磁光盘的光学记录介质上的信息信号的本发明的光学拾取装置适于通过分光元件将从光源发射的光束分成两束光束 不同的方向,它们在正交相交方向上线性偏振,并且通过正交相交的两个轴将振动分量的相位转换成通常与两个光束的行进方向相交的平面,并用两个光束照射记录介质 不同的极化,使得两个光束点在记录介质上彼此部分地叠加。 作为读出区域的叠加光束斑区域的尺寸小于一个光束点,从而执行高分辨率读出。
    • 73. 发明授权
    • Optical disk having intertrack heat conduction suppression
    • 具有互调导热抑制的光盘
    • US5353277A
    • 1994-10-04
    • US958007
    • 1992-10-08
    • Kouichi YasudaAtsushi FukumotoMasumi Ono
    • Kouichi YasudaAtsushi FukumotoMasumi Ono
    • G11B7/007G11B7/24
    • G11B7/24G11B7/00718
    • To increase the track density, that is, to improve the recording density of the optical disk of ultra-high resolving power reproduction type, grooves 4 are formed in a transparent substrate 2; phase pits 1 are formed on groove bottom portions 5 and land portions 6 of the grooves; and further a material layer 3 is laminated. A polycarbonate substrate is used as the transparent substrate 2. The material layer 3 is formed of such a material that the state is partially changed due to heat of the reading light in the optical spot of the reading light but returned to the original state after the reading light has passed, and in addition the reflection factor of the material is changeable according to the state change. The material layer 3 is a ternary compound of Ge.sub.2 Sb.sub.2 Te.sub.3. The thermal conductivity of the transparent substrate 2 is smaller than that of the material layer 3. The temperature of the material layer 3 rises in the laser spot according to the light intensity distribution of the laser, so that the reflection factor changes partially to enable data read operation. The heat conduction suppression due to the presence of the stepped portions of the grooves 4 sharpens the temperature gradient, so that the range in which the reflection factor is increased due to the state change of the material layer 3 can be reduced, thus decreasing the track interval distance and thereby increasing the track density.
    • 为了增加轨道密度,即,为了提高超高分辨率再现型光盘的记录密度,在透明基板2中形成槽4; 相位凹坑1形成在凹槽底部5和凹槽部分6上; 并且进一步层压材料层3。 使用聚碳酸酯基材作为透明基板2.材料层3由这样的材料形成,即由于读取光的光点中的读取光的热量而使状态部分地变化,但是在第 阅读光已经过去了,而且材料的反射因子根据状态的变化是可以改变的。 材料层3是Ge 2 Sb 2 Te 3的三元化合物。 透明基板2的热导率小于材料层3的导热率。根据激光的光强度分布,材料层3的温度在激光点上升,使得反射系数部分变化,使数据 读操作。 由于凹槽4的阶梯部分的存在导致的热传导抑制使得温度梯度变亮,从而可以减少由于材料层3的状态变化导致的反射系数增加的范围,从而减小轨迹 间隔距离,从而增加轨道密度。
    • 76. 发明授权
    • Semiconductor memory device and method for manufacturing the same
    • 半导体存储器件及其制造方法
    • US09209295B2
    • 2015-12-08
    • US13601156
    • 2012-08-31
    • Masaaki HigushiAtsushi Fukumoto
    • Masaaki HigushiAtsushi Fukumoto
    • H01L27/115H01L29/78H01L21/28
    • H01L29/7827H01L21/28008H01L27/11578H01L27/11582
    • According to one embodiment, a semiconductor memory device includes: a substrate; a stacked body including a plurality of electrode layers and a plurality of insulating layers, both of them being alternately stacked on the substrate; a cap film provided in contact with the electrode layer within a hole formed to penetrate the stacked body; an insulating film provided on a side wall of the cap film and including a charge accumulation film; and a channel body provided on a side wall of the insulating film. The cap film includes a protrusion portion protruding toward the insulating film. In the cap film, a film thickness of a portion where the protrusion portion is provided in a direction in which the protrusion portion protrudes is larger than a film thickness of the other portions where the protrusion portion is not provided.
    • 根据一个实施例,半导体存储器件包括:衬底; 包括多个电极层和多个绝缘层的堆叠体,它们都交替堆叠在基板上; 在形成为穿透所述层叠体的孔内与所述电极层接触地设置的盖膜; 设置在所述盖膜的侧壁上并具有电荷蓄积膜的绝缘膜; 以及设置在绝缘膜的侧壁上的通道体。 盖膜包括朝向绝缘膜突出的突出部。 在盖膜中,突出部在突起部突出的方向上设置的部分的膜厚大于不设置突起部的其他部分的膜厚。
    • 77. 发明授权
    • Recording and reproducing device, recording and reproducing method, recording device, recording method, reproducing device and reproducing method
    • 记录和再现装置,记录和再现方法,记录装置,记录方法,再现装置和再现方法
    • US08305668B2
    • 2012-11-06
    • US12439839
    • 2008-05-01
    • Kenji TanakaAtsushi Fukumoto
    • Kenji TanakaAtsushi Fukumoto
    • G02B5/32
    • G11B7/0065G03H2001/0441G03H2210/22G03H2210/562G03H2225/32G11B7/128
    • A technique for recording data onto a hologram recording medium using spatial light phase modulation corresponding to the recording data, and a technique for reproducing recorded data by properly reading information on phases recorded on a hologram recording medium. A signal beam having a phase modulation pattern corresponding to recording data and a reference beam having a specific phase modulation pattern are applied to the recording medium. Thus, recording data can be recorded onto the hologram recording medium using phase information. In addition, at the time of reproduction, a reference beam and a direct current (DC) beam, whose phase difference with respect to the reference beam is π/2, are applied to the hologram recording medium. By reading the reproduction beam to which the DC beam is added, recorded information on phases can be correctly read, and recorded data can be reproduced in accordance with the phase information.
    • 使用与记录数据相对应的空间光相位调制将数据记录到全息图记录介质上的技术,以及通过适当地读取记录在全息图记录介质上的相位的信息来再现记录数据的技术。 将具有对应于记录数据的相位调制图案和具有特定相位调制图案的参考光束的信号光束施加到记录介质。 因此,可以使用相位信息将记录数据记录在全息图记录介质上。 此外,在再现时,相对于参考光束的相位差为&pgr / 2的参考光束和直流(DC)光束被施加到全息图记录介质。 通过读取添加了DC光束的再现光束,可以正确地读取关于相位的记录信息,并且可以根据相位信息再现记录数据。