公开(公告)号：US20160288520A1

公开(公告)日：2016-10-06

申请号：US15075105

申请日：2016-03-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKAHISA KATO ,  HIROYUKI MATSUBA ,  YOUSUKE TOYOFUKU

IPC: B41J2/175

CPC classification number: B41J2/17596 ,  B41J2/055 ,  B41J2/175 ,  B41J2/17503 ,  B41J2/17509 ,  B41J2/17556

Abstract: An ink supply device for a printhead includes an ink cartridge and a damper device. The ink cartridge is connected to the printhead through a flexible tube. The printhead is mounted on a carriage that reciprocates, and discharges an ink drop to perform printing. The damper device is mounted on the carriage to relax pressure fluctuation of ink supplied from the ink cartridge to the printhead. The damper device has a case, an ink introduction passage, and a flexible plate. The case defines a pressure chamber communicated with the printhead. The ink introduction passage is communicated with the flexible tube, and is ated with the pressure chamber. The flexible plate is provided so as to define a part of the pressure chamber, and has a waveform portion formed with a plurality of waveforms.

Abstract translation: 用于打印头的供墨装置包括墨盒和阻尼装置。 墨盒通过柔性管连接到打印头。 打印头安装在往复运动的托架上，并排出墨滴进行打印。 阻尼器装置安装在滑架上以减轻从墨盒供应到打印头的墨水的压力波动。 阻尼装置具有壳体，墨水引入通道和柔性板。 壳体限定了与打印头连通的压力室。 墨水引入通道与柔性管连通，并与压力室连通。 柔性板被设置成限定压力室的一部分，并且具有形成有多个波形的波形部分。

公开(公告)号：US20230311509A1

公开(公告)日：2023-10-05

申请号：US18183096

申请日：2023-03-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KENTARO KUMAZAWA ,  SHUHEI NAKATANI ,  KAZUNOBU IRIE ,  FUTOSHI OHTSUKA ,  YOUSUKE TOYOFUKU

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/1433 ,  B41J2/14233 ,  B41J2/14274 ,  B41J2/162 ,  B41J2/1607 ,  B41J2/1623 ,  B41J2002/14258

Abstract: A coating head includes: a plurality of nozzles; a plurality of pressure chambers communicating with the plurality of nozzles; an ink flow path communicating with the plurality of pressure chambers; and a coating layer that is at least partially provided on liquid contact surfaces of the plurality of nozzles, the plurality of pressure chambers, and the ink flow path.

公开(公告)号：US20190077144A1

公开(公告)日：2019-03-14

申请号：US16118186

申请日：2018-08-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHUHEI NAKATANI ,  FUTOSHI OHTSUKA ,  YOUSUKE TOYOFUKU

IPC: B41J2/045 ,  B41J2/145

CPC classification number: B41J2/04541 ,  B41J2/04581 ,  B41J2/14274 ,  B41J2/145 ,  B41J2202/12

Abstract: An object of the disclosure is to provide an inkjet head that makes it possible to realize alleviation of ink-discharge malfunction due to fluid crosstalk possibly caused among multiple discharge components, and that also simultaneously makes it possible to maintain a desirable volume of discharged liquid droplets. Furthermore, another object of the disclosure is to provide an inkjet device including the inkjet head.

公开(公告)号：US20210291521A1

公开(公告)日：2021-09-23

申请号：US17194416

申请日：2021-03-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KAZUNOBU IRIE ,  HIDEHIRO YOSHIDA ,  SHUHEI NAKATANI ,  FUTOSHI OHTSUKA ,  YOUSUKE TOYOFUKU

IPC: B41J2/14 ,  B41J2/045 ,  B41J2/175

Abstract: An ink jet head includes a piezoelectric element that is driven in a d33 mode, a pressure generation chamber in which a pressure is generated by the piezoelectric element, and an individual ink supply flow passage that through which the ink is supplied to the pressure generation chamber. The ink jet head includes an individual ink discharge flow passage that through which the ink is discharged from the pressure generation chamber, and a nozzle that ejects the ink from the pressure generation chamber. In a cross-sectional view in a direction orthogonal to an arrangement direction of the nozzle, inner diameters of the pressure generation chamber, the individual ink supply flow passage, and the individual ink discharge flow passage are shorter on a part close to the nozzle than a part close to the piezoelectric element side. Accordingly, an ink jet head capable of ejecting high-viscosity ink can be provided.

公开(公告)号：US20170274664A1

公开(公告)日：2017-09-28

申请号：US15427085

申请日：2017-02-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUTAKA UETA ,  YOUSUKE TOYOFUKU ,  TAKAMI ISHIDA ,  HIDEAKI HORIO

IPC: B41J2/175

CPC classification number: B41J2/17563 ,  B41J2/14233 ,  B41J2002/14266 ,  B41J2002/14403 ,  B41J2002/14419 ,  B41J2202/11

Abstract: An ink jet head includes an actuator and a structure body. The actuator includes a thin film portion, a pressure chamber layer, and a filter. The thin film portion is deformed by application of a voltage to apply a pressure to an ink. The pressure chamber layer is formed on a surface of the pressure chamber and has a recessed portion. The filter is integrally formed with the pressure chamber layer so as to be disposed in the recessed portion, the filter having an aperture smaller than a diameter of a nozzle. The actuator is stacked on an upper surface of the structure body and joined to the upper surface thereof. A pressure chamber is formed by the recessed portion and the upper surface of the structure body, and the filter is disposed in the pressure chamber.