公开(公告)号：US20070132813A1

公开(公告)日：2007-06-14

申请号：US11610152

申请日：2006-12-13

申请人： Takahiro Yamada ,  Hitoshi Kida ,  Satoru Tobita ,  Kenichi Kugai

发明人： Takahiro Yamada ,  Hitoshi Kida ,  Satoru Tobita ,  Kenichi Kugai

IPC分类号： B41J2/045

CPC分类号： B41J2/04588 ,  B41J2/0456 ,  B41J2/04581

摘要： A droplet ejecting device includes a nozzle unit, a piezoelectric member and a drive voltage generating unit. The piezoelectric member has a common electrode and a discrete electrode. A first differentiation by polarization voltage of a characteristic curve indicating change in a polarization of the piezoelectric member with respect to change in the polarization voltage has a plurality of extremal values including a first extremal value at a prescribed positive voltage Vbp that is the smallest polarization voltage among plus polarization voltages corresponding to the plurality of extremal values, and a second extremal value at a prescribed negative voltage Vbn that is the largest polarization voltage among minus polarization voltages corresponding to the plurality of extremal values. The drive voltage generating unit generates a drive voltage having a range between a first negative voltage Ve1 and a first positive voltage Ve2, and applies the drive voltage between the common electrode and the discrete electrode. Vbp, Vbn, Ve1, and Ve2 are set such that Vbn

摘要翻译： 液滴喷射装置包括喷嘴单元，压电构件和驱动电压产生单元。 压电元件具有公共电极和分立电极。 指示压电元件的极化相对于极化电压的变化的特性曲线的极化电压的第一微分值具有多个极值，包括作为最小极化电压的规定正电压Vbp的第一极值 在与多个极值对应的正极化电压之间的第二极值和在与多个极值对应的负极化电压之中的最大极化电压的规定负电压Vbn处的第二极值。 驱动电压产生单元产生具有第一负电压Ve 1和第一正电压Ve 2之间的范围的驱动电压，并且在公共电极和离散电极之间施加驱动电压。 Vbp，Vbn，Ve1和Ve2被设置为使得Vbn

公开(公告)号：US20060132548A1

公开(公告)日：2006-06-22

申请号：US11303912

申请日：2005-12-19

申请人： Takahiro Yamada ,  Shinya Kobayashi ,  Satoru Tobita ,  Katsuya Kawai ,  Hitoshi Kida

发明人： Takahiro Yamada ,  Shinya Kobayashi ,  Satoru Tobita ,  Katsuya Kawai ,  Hitoshi Kida

IPC分类号： B41J2/045

CPC分类号： B41J2/14274

摘要： An ink jet recording head unit includes a plurality of nozzle elements, a plurality of piezoelectric elements and a driving unit. The plurality of piezoelectric elements is provided in one-to-one correspondence with the plurality of nozzle elements. Each piezoelectric element has a positive pole and a negative pole. Each piezoelectric element expands and contracts when a voltage potential difference between the positive pole and the negative pole is varied. The plurality of nozzle elements includes a first nozzle element and a second nozzle element adjacent to the first nozzle element. A first piezoelectric element and a second piezoelectric element correspond to the first nozzle element and the second nozzle element respectively. The driving unit controls the first piezoelectric element and the second piezoelectric element to expand and contract in a complementary manner.

公开(公告)号：US06761436B2

公开(公告)日：2004-07-13

申请号：US10183422

申请日：2002-06-28

申请人： Satoru Tobita ,  Shinya Tomita ,  Toshitaka Ogawa

发明人： Satoru Tobita ,  Shinya Tomita ,  Toshitaka Ogawa

IPC分类号： B41J2045

CPC分类号： B41J2/14

摘要： An inkjet head is formed with a nozzle, a pressure chamber, a plurality of restrictors, and a common ink chamber. Because the plurality of restrictors are formed in the inkjet head, it is possible to increase a fluid resistance of the restrictors without decreasing the Helmholtz resonant frequency. Accordingly, the inkjet head can be driven at a high frequency while preventing residual pressure wave affecting a subsequent ink ejection.

摘要翻译： 喷墨头形成有喷嘴，压力室，多个限制器和公共墨水室。 由于多个限制器形成在喷墨头中，所以可以在不降低亥姆霍兹共振频率的情况下增加限制器的流体阻力。 因此，可以以高频率驱动喷墨头，同时防止残留压力波影响随后的喷墨。

公开(公告)号：US4931927A

公开(公告)日：1990-06-05

申请号：US934631

申请日：1987-01-21

申请人： Koji Ishiwata ,  Satoru Tobita

发明人： Koji Ishiwata ,  Satoru Tobita

IPC分类号： G11B27/00 ,  G06F12/00 ,  G11B27/034 ,  G11B27/10 ,  G11B27/22 ,  G11B27/32 ,  G11B27/34 ,  G11B27/36

CPC分类号： G11B27/22 ,  G11B27/034 ,  G11B27/105 ,  G11B27/329 ,  G11B27/34 ,  G11B27/36 ,  G11B2220/20 ,  G11B2220/218 ,  G11B2220/2545

摘要： In constructing a list of recorded data recorded onto a disk (4), a point of starting the recording of finally recorded data is found from time record data of the final record, and the preceding data area is sought to find a point of starting the recording of the data. The seeking operation is repeated to construct the list within short periods of time on a time table under a system controller (1). The list thus prepared is then recorded onto a list-recording area of the disk (4).

摘要翻译： PCT No.PCT / JP86 / 00152 Sec。 371日期1987年1月21日 102（e）日期1987年1月21日PCT申请日1986年3月28日PCT公布。 出版物WO86 / 05916 日期为1986年10月9日。在构建记录在盘（4）上的记录数据的列表时，从最终记录的时间记录数据中找到开始记录最终记录数据的点，并寻找先前的数据区 找到开始记录数据的点。 在系统控制器（1）下的时间表上重复寻找操作以在短时间内构建列表。 然后将如此制备的列表记录到盘（4）的列表记录区域上。