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    • 3. 发明授权
    • Memory system and data deleting method
    • 内存系统和数据删除方法
    • US09026734B2
    • 2015-05-05
    • US13312129
    • 2011-12-06
    • Daisuke Hashimoto
    • Daisuke Hashimoto
    • G06F13/00G06F12/00G06F12/02G06F12/08
    • G06F12/0246G06F3/0608G06F3/061G06F3/0652G06F3/0679G06F12/08G06F2212/7205
    • According to one embodiment, a memory system includes: a memory area; a transfer processing unit that stores write data received from a host apparatus in the memory area; a delete notification buffer that accumulates a delete notification; and a delete notification processing unit. The delete notification processing unit collectively reads out a plurality of delete notifications from the delete notification buffer and classifies the read-out delete notifications for each unit area. The delete notification processing unit sequentially executes, for each unit area, processing for collectively invalidating write data related to one or more delete notifications classified in a same unit area and, in executing processing for one unit area in the processing sequentially executed for the each unit area, invalidates all write data stored in the one unit area after copying write data excluding write data to be invalidated stored in the one unit area to another unit area.
    • 根据一个实施例,存储器系统包括:存储区域; 传送处理单元,其将从主机装置接收的写入数据存储在存储区域中; 删除通知缓冲器,累积删除通知; 和删除通知处理单元。 删除通知处理单元从删除通知缓冲器中共同读出多个删除通知,并对每个单位区域的读出删除通知进行分类。 删除通知处理单元对于每个单位区域顺序地执行用于共同使与分类在同一单位区域中的一个或多个删除通知相关的写入数据无效的处理,并且在对于每个单元顺序执行的处理中对一个单位区域执行处理 区域,在将除了存储在一个单位区域中的无效的写入数据的写入数据复制到另一单位区域之后,使存储在一个单位区域中的所有写入数据无效。
    • 6. 发明授权
    • Ferro-electric random access memory apparatus
    • 铁电随机存取存储器
    • US08199554B2
    • 2012-06-12
    • US12876984
    • 2010-09-07
    • Daisuke HashimotoDaisaburo Takashima
    • Daisuke HashimotoDaisaburo Takashima
    • G11C11/22
    • G11C11/22
    • A ferro-electric random access memory apparatus has a memory cell array in which a plurality of memory cells each formed of a ferro-electric capacitor and a transistor are arranged, word lines are disposed to select a memory cell, plate lines are disposed to apply a voltage to a first end of the ferro-electric capacitor in a memory cell, and bit lines are disposed to read cell data from a second end of the ferro-electric capacitor in the memory cell. The ferro-electric random access memory apparatus has a sense amplifier which senses and amplifies a signal read from the ferro-electric capacitor onto the bit line. The ferro-electric random access memory apparatus has a bit line potential control circuit which exercises control to pull down a voltage on an adjacent bit line adjacent to the selected bit line onto which the signal is read, before operation of the sense amplifier at time of data readout.
    • 铁电随机存取存储装置具有其中布置有由铁电电容器和晶体管形成的多个存储单元的存储单元阵列,设置字线以选择存储单元,设置板线以应用 存储单元中的铁电电容器的第一端的电压和位线被设置为从存储单元中的铁电电容器的第二端读取单元数据。 铁电随机存取存储装置具有感测放大器,其感测并放大从铁电电容器读取到位线上的信号。 铁电随机存取存储装置具有位线电位控制电路,该位线电位控制电路在该读出放大器的操作之前进行控制以在与读取信号的所选位线相邻的相邻位线上下拉电压 数据读出。
    • 7. 发明授权
    • Ferroelectric memory
    • 铁电存储器
    • US08059445B2
    • 2011-11-15
    • US12563950
    • 2009-09-21
    • Daisuke HashimotoDaisaburo TakashimaHidehiro Shiga
    • Daisuke HashimotoDaisaburo TakashimaHidehiro Shiga
    • G11C11/22
    • G11C11/22G11C11/406
    • A ferroelectric memory according to an embodiment of the present invention includes a memory cell array including plural memory cells, and provided with plural word lines, plural bit lines, and plural plate lines, each of the plate lines corresponding to at least two of the word lines, an access control circuit configured to perform an access operation to a selected cell which is selected from the memory cells, and a refresh control circuit configured to perform a refresh operation, in a background of the access operation, on a refresh cell which is selected from the memory cells, the refresh control circuit performing the refresh operation when a plate line connected to the selected cell and a bit line connected to the selected cell are at the same potential after the access operation.
    • 根据本发明的实施例的铁电存储器包括:存储单元阵列,包括多个存储单元,并且具有多个字线,多个位线和多个板线,每个板线对应于该字中的至少两个 线路,被配置为对从所述存储器单元中选择的所选择的单元执行访问操作的访问控制电路;以及刷新控制电路,被配置为在所述访问操作的后台中执行刷新操作,所述更新单元是 从所述存储单元中选择所述刷新控制电路,所述刷新控制电路在连接到所选择的单元的板线和连接到所选择的单元的位线之间执行刷新操作,在所述访问操作之后处于相同的电位。
    • 8. 发明申请
    • COPPER ALLOY SHEET
    • 铜合金板
    • US20110223056A1
    • 2011-09-15
    • US12672092
    • 2008-07-24
    • Yasuhiro ArugaDaisuke HashimotoKoya Nomura
    • Yasuhiro ArugaDaisuke HashimotoKoya Nomura
    • C22C9/02C22C9/06C22C9/10
    • H01R13/03C22C9/00C22C9/02C22C9/06C22F1/08H01R13/11H01R43/16
    • The present invention relates to a Cu—Ni—Sn—P-based copper alloy sheet having a specific composition, where (1) the copper alloy sheet is set to have an electrical conductivity of 32% IACS or more, a stress relaxation ratio in the direction parallel to the rolling direction of 15% or less, a 0.2%-proof stress of 500 MPa or more and an elongation of 10% or more; (2) the X-ray diffraction intensity ratio I(200)/I(220) in the sheet surface is set to be a given value or less and at the same time, anisotropy in the stress relaxation resistance characteristic is reduced by fining the grain size; (3) the texture of the copper alloy sheet is set to a texture such that the distribution density of B orientation and the sum of distribution densities of B orientation, S orientation and Cu orientation each is set to fall in a specific range and bendability is thereby enhanced; or (4) the dislocation density measured using the value obtained by dividing the half-value breadth of the X-ray diffraction intensity peak from {200} plane in the copper alloy sheet surface by the peak height is set to a given value or more and press punchability is thereby enhanced. The Cu—Ni—Sn—P-based copper alloy sheet of the present invention is excellent in the properties required for a terminal or connector and further (1) has excellent strength-ductility balance, (2) satisfies the stress relaxation resistance characteristic in the direction orthogonal to the rolling direction, (3) has excellent bendability, or (4) has excellent press punchability.
    • 本发明涉及具有特定组成的Cu-Ni-Sn-P系铜合金板,其中(1)铜合金板的导电率设定为32%IACS以上,应力松弛率 平行于轧制方向的方向为15%以下,0.2%以上的应力为500MPa以上,伸长率为10%以上。 (2)将片材表面的X射线衍射强度比I(200)/ I(220)设定为规定值以下,同时,耐应力松弛特性的各向异性通过使 晶粒大小; (3)将铜合金板的织构设定为使得B取向的分布密度和B取向,S取向和Cu取向的分布密度之和各自落在特定范围内,弯曲性为 从而增强; 或(4)使用通过将铜合金板表面中的{200}面的X射线衍射强度峰值的半值宽度除以峰高而得到的值而测定的位错密度设定为规定值以上 从而增强了冲压性。 本发明的Cu-Ni-Sn-P系铜合金板的端子或连接器的特性优异,(1)具有优异的强度 - 延展性平衡,(2)满足 与轧制方向正交的方向,(3)具有优异的弯曲性,或者(4)具有优异的冲压冲压性。