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51. 发明授权

US06788564B2 Ferroelectric storage apparatus, driving method therefor, and driving circuit therefor 失效
标题翻译：铁电存储装置及其驱动方法及其驱动电路
公开(公告)号：US06788564B2
公开(公告)日：2004-09-07
申请号：US10396372
申请日：2003-03-26
申请人： Yasuaki Hamada
发明人： Yasuaki Hamada
IPC分类号： G11C1122
CPC分类号： G11C11/22
摘要： The invention provides a ferroelectric storage apparatus which can reduce or prevent disturbance, a driving method therefor, and a driving circuit therefor. In the ferroelectric storage apparatus, an operation step of applying one of data reading, data re-writing, and data writing to at least one selected cell among a plurality of ferroelectric memory cells formed at the intersections of a plurality of word lines and a plurality of bit lines is repeatedly performed. A disturbance prevention step of applying a voltage to each of the plurality of ferroelectric memory cells in an electric-field direction in which the stored data of each ferroelectric memory cell is not inverted is performed after the operation step is executed at least once. With this, a voltage is applied to not-selected cells at a certain frequency in an electric-field direction in which the stored data of the not-selected cells is not inverted, and data deterioration is reduced or suppressed.
摘要翻译：本发明提供一种能够减少或防止干扰的铁电存储装置及其驱动方法及其驱动电路。在铁电存储装置中，对形成在多个字线和多个字线的交点处的多个铁电存储单元中的至少一个所选择的单元进行数据读取，数据重写和数据写入之一的操作步骤的位线被重复执行。在操作步骤至少执行一次之后，执行在每个强电介质存储单元的存储数据未反转的电场方向上向多个铁电存储单元中的每一个施加电压的干扰防止步骤。由此，在未选择的单元的存储数据不被反转的电场方向上以特定频率对未选择的单元施加电压，并且降低或抑制数据劣化。

52. 发明授权

US09144975B2 Piezoelectric element, liquid ejection head, and liquid ejection device 有权
标题翻译：压电元件，液体喷射头和液体喷射装置
公开(公告)号：US09144975B2
公开(公告)日：2015-09-29
申请号：US13037583
申请日：2011-03-01
申请人： Yasuaki Hamada
发明人： Yasuaki Hamada
IPC分类号： B41J2/45 , B41J2/14 , C04B35/26 , C04B35/626 , H01L41/08 , H01L41/187 , C23C18/12 , H01L41/318
CPC分类号： B41J2/14233 , B41J2002/14241 , B41J2002/14419 , B41J2002/14491 , B41J2202/03 , C04B35/26 , C04B35/6264 , C04B2235/3215 , C04B2235/3236 , C04B2235/3262 , C04B2235/3274 , C04B2235/3298 , C04B2235/3418 , C04B2235/441 , C04B2235/449 , C04B2235/768 , C04B2235/787 , C23C18/1216 , H01L41/0805 , H01L41/1878 , H01L41/318
摘要： A piezoelectric element having a piezoelectric layer and electrodes. The piezoelectric layer is 3 μm or less in thickness. The piezoelectric layer is made of a piezoelectric material containing a perovskite compound including bismuth manganate ferrate and barium titanate. The piezoelectric layer is preferentially oriented with the (110) plane. A full width at half maximum of the X-ray diffraction peak attributed to the (110) plane is 0.24° or more and 0.28° or less.
摘要翻译：具有压电层和电极的压电元件。压电层的厚度为3μm以下。该压电层由含有包括锰酸铋铁酸盐铋和钛酸钡的钙钛矿化合物的压电材料制成。压电层优先用（110）面取向。归因于（110）面的X射线衍射峰的半峰全宽为0.24°以上且0.28°以下。

53. 发明授权

US08851635B2 Liquid ejecting head, liquid ejecting apparatus, and piezoelectric element 有权
标题翻译：液体喷射头，液体喷射装置和压电元件
公开(公告)号：US08851635B2
公开(公告)日：2014-10-07
申请号：US13038320
申请日：2011-03-01
申请人： Yasuaki Hamada
发明人： Yasuaki Hamada
IPC分类号： B41J2/045 , H01L41/08 , H01L41/187 , B41J2/14 , H01L41/318
CPC分类号： B41J2/045 , B41J2/14233 , H01L41/0805 , H01L41/1878 , H01L41/318
摘要： There are provided a piezoelectric element comprising a first electrode, a piezoelectric layer and a second electrode, the piezoelectric layer is made of a piezoelectric material that contains a bismuth ferrite and silicon dioxide.
摘要翻译：提供了包括第一电极，压电层和第二电极的压电元件，压电层由含有铋铁氧体和二氧化硅的压电材料制成。

54. 发明授权

US07646073B2 Ferroelectric capacitor and ferroelectric memory 失效
标题翻译：铁电电容器和铁电存储器
公开(公告)号：US07646073B2
公开(公告)日：2010-01-12
申请号：US11680111
申请日：2007-02-28
申请人： Yasuaki Hamada
发明人： Yasuaki Hamada
IPC分类号： H01L29/00
CPC分类号： H01L27/11502
摘要： A ferroelectric capacitor includes: a base substrate; a buffer layer formed above the base substrate; a lower electrode formed above the buffer layer; a ferroelectric layer formed above the lower electrode; and an upper electrode formed above the ferroelectric layer, wherein the buffer layer includes titanium (Ti) and cobalt (Co) as metal elements, and a metal element ratio x is 0.05≦x
摘要翻译：铁电电容器包括：基底; 形成在所述基底基板上的缓冲层; 形成在缓冲层上的下电极; 形成在下电极上方的铁电层; 和形成在铁电体层上方的上电极，其中缓冲层包括钛（Ti）和钴（Co）作为金属元素，金属元素比x为0.05 <= x <1，当Ti：Co = 1-x ：X。

55. 发明授权

US09034418B2 Method for manufacturing piezoelectric film 有权
标题翻译：制造压电薄膜的方法
公开(公告)号：US09034418B2
公开(公告)日：2015-05-19
申请号：US13037600
申请日：2011-03-01
申请人： Yasuaki Hamada
发明人： Yasuaki Hamada
IPC分类号： B05D5/12 , B41J2/14 , H01L41/187 , B05D3/00 , C23C18/12 , B05D3/02 , C04B35/26 , H01L41/318
CPC分类号： B41J2/14233 , B05D3/007 , B05D3/02 , B05D5/12 , C04B35/2633 , C04B2235/3215 , C04B2235/3236 , C04B2235/3298 , C04B2235/3418 , C04B2235/441 , C04B2235/768 , C04B2235/787 , C23C18/1208 , H01L41/187 , H01L41/1878 , H01L41/318
摘要： A method for manufacturing a piezoelectric film includes: forming a piezoelectric precursor film including Bi, Fe, Mn, Ba, and Ti; and obtaining a piezoelectric film preferentially oriented with the (110) plane by crystallizing the piezoelectric precursor film.
摘要翻译：一种制造压电薄膜的方法包括：形成包含Bi，Fe，Mn，Ba和Ti的压电前体膜; 并且通过使压电前体膜结晶来获得优先用（110）面取向的压电膜。

56. 发明申请

US20110216131A1 LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND PIEZOELECTRIC ELEMENT 有权
标题翻译：液体喷射头，液体喷射装置和压电元件
公开(公告)号：US20110216131A1
公开(公告)日：2011-09-08
申请号：US13038320
申请日：2011-03-01
申请人： Yasuaki Hamada
发明人： Yasuaki Hamada
IPC分类号： B41J2/045 , H01L41/18
CPC分类号： B41J2/045 , B41J2/14233 , H01L41/0805 , H01L41/1878 , H01L41/318
摘要： There are provided a piezoelectric element comprising a first electrode, a piezoelectric layer and a second electrode, the piezoelectric layer is made of a piezoelectric material that contains a bismuth ferrite and silicon dioxide.
摘要翻译：提供了包括第一电极，压电层和第二电极的压电元件，压电层由含有铋铁氧体和二氧化硅的压电材料制成。

57. 发明授权

US07778060B2 Ferroelectric memory 有权
标题翻译：铁电存储器
公开(公告)号：US07778060B2
公开(公告)日：2010-08-17
申请号：US11733891
申请日：2007-04-11
申请人： Yasuaki Hamada
发明人： Yasuaki Hamada
IPC分类号： G11C11/22
CPC分类号： G11C11/22
摘要： A ferroelectric memory includes: a memory cell having a ferroelectric capacitor, wherein, in a read-out operation, a first signal Q1 is given when a first voltage is applied to the ferroelectric capacitor, and a second signal Q2 is given when a second voltage having an identical magnitude as a magnitude of the first voltage in a different polarity is applied to the ferroelectric capacitor, and a judgment is made that the memory cell stores first data when Q1/Q2 is greater than ½, and second data when Q1/Q2 is smaller than ½.
摘要翻译：铁电存储器包括：具有铁电电容器的存储单元，其中，在读出操作中，当向所述铁电电容器施加第一电压时，给出第一信号Q1，并且当第二电压具有与不同极性的第一电压的幅度相同的大小的值被施加到铁电电容器，并且当Q1 / Q2大于1/2时，判断存储单元存储第一数据，当Q1 / Q2 小于1/2。

58. 发明授权

US06870753B2 Ferroelectric memory 失效
标题翻译：铁电存储器
公开(公告)号：US06870753B2
公开(公告)日：2005-03-22
申请号：US10396371
申请日：2003-03-26
申请人： Yasuaki Hamada
发明人： Yasuaki Hamada
IPC分类号： G11C11/22 , G11C11/56 , G11C11/24 , G11C16/04
CPC分类号： G11C11/22 , G11C11/5657
摘要： A ferroelectric memory capable of multi-value memory retention is provided which hardly modifies a related art circuit. The period for which a write pulse is applied changes depending upon a value to be stored, so that multi-value value storage is attained. Only one voltage is prepared for the write pulse, and a reset or read pulse and the write pulse have the same voltage, thus achieving a ferroelectric memory having a multi-value storage function using only one voltage source.
摘要翻译：提供了能够进行多值存储保持的铁电存储器，其几乎不修改现有技术的电路。施加写入脉冲的周期根据要存储的值而改变，从而获得多值值存储。对于写入脉冲仅准备一个电压，并且复位或读取脉冲和写入脉冲具有相同的电压，从而实现仅使用一个电压源的具有多值存储功能的铁电存储器。

59. 发明授权

US08641174B2 Liquid ejection head, liquid ejection device 有权
标题翻译：液体喷射头，液体喷射装置
公开(公告)号：US08641174B2
公开(公告)日：2014-02-04
申请号：US13037631
申请日：2011-03-01
申请人： Yasuaki Hamada
发明人： Yasuaki Hamada
IPC分类号： H01L41/00 , H02N2/00 , B41J2/045
CPC分类号： B41J2/14201 , B41J2/14233 , B41J2002/14241 , B41J2002/14419 , C04B35/2633 , C04B2235/3215 , C04B2235/3236 , C04B2235/3298 , C04B2235/3418 , C04B2235/441 , C04B2235/768 , C04B2235/787 , H01L41/1878 , H01L41/318
摘要： A liquid ejection head including a piezoelectric element having a piezoelectric layer and electrodes The piezoelectric layer is 3 μm or less in thickness. The piezoelectric layer is made of a piezoelectric material including bismuth manganate ferrate and barium titanate. The piezoelectric layer is preferentially oriented with the (110) plane.
摘要翻译：包括具有压电层和电极的压电元件的液体喷射头压电层的厚度为3μm或更小。压电层由包含锰酸铋铁酸盐和钛酸钡的压电材料制成。压电层优先用（110）面取向。

60. 发明申请

US20070210361A1 FERROELECTRIC CAPACITOR AND FERROELECTRIC MEMORY 失效
标题翻译：电磁电容器和电磁记忆体
公开(公告)号：US20070210361A1
公开(公告)日：2007-09-13
申请号：US11680111
申请日：2007-02-28
申请人： Yasuaki Hamada
发明人： Yasuaki Hamada
IPC分类号： H01L29/94
CPC分类号： H01L27/11502
摘要： A ferroelectric capacitor includes: a base substrate; a buffer layer formed above the base substrate; a lower electrode formed above the buffer layer; a ferroelectric layer formed above the lower electrode; and an upper electrode formed above the ferroelectric layer, wherein the buffer layer includes titanium (Ti) and cobalt (Co) as metal elements, and a metal element ratio x is 0.05≦x
摘要翻译：铁电电容器包括：基底; 形成在所述基底基板上的缓冲层; 形成在缓冲层上的下电极; 形成在下电极上方的铁电层; 和形成在铁电体层上方的上电极，其中缓冲层包括钛（Ti）和钴（Co）作为金属元素，金属元素比x为0.05 <= x <1，当Ti：Co = 1-x ：X。

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