公开(公告)号：US20200230980A1

公开(公告)日：2020-07-23

申请号：US16745768

申请日：2020-01-17

Applicant: SEIKO EPSON CORPORATION

Inventor： Takeshi TOKUDA ,  Takashi AOKI

IPC: B41J11/70 ,  B41J15/04

Abstract: Provided is a printing apparatus including a printing apparatus main body, a cutter unit attached to the printing apparatus main body, a fixed blade, a movable blade configured to mesh with the fixed blade to cut a printing medium, and a pickup sensor configured to detect a printing medium. The cutter unit incorporates the movable blade and the pickup sensor.

公开(公告)号：US20240300241A1

公开(公告)日：2024-09-12

申请号：US18598747

申请日：2024-03-07

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi AOKI ,  Harunobu KOIKE ,  Kei KIYOSE

IPC: B41J2/14

CPC classification number: B41J2/14233

Abstract: There is provided a liquid discharge head including: a piezoelectric element; a pressure chamber substrate provided with a pressure chamber that communicates with a nozzle; and a vibration plate configured to apply a pressure to a liquid in the pressure chamber by vibrating when the piezoelectric element is driven, in which the pressure chamber substrate, the vibration plate, and the piezoelectric element are laminated in this order in a lamination direction, the vibration plate includes an elastic film provided on the pressure chamber substrate and an insulating film provided between the elastic film and the piezoelectric element, and X>−0.48Z−904, where a compressive stress is represented by a negative value, a tensile stress is represented by a positive value, a film stress of the elastic film is X [MPa], and a film stress of the insulating film is Z [MPa].

公开(公告)号：US20230066192A1

公开(公告)日：2023-03-02

申请号：US17898593

申请日：2022-08-30

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi AOKI ,  Shohei MIZUTA

IPC: B41J2/14

Abstract: A liquid ejecting head includes a pressure chamber substrate in which wall surface portions of a pressure chamber are formed, an diaphragm that forms a top surface portion of the pressure chamber, a piezoelectric element that is provided on the diaphragm, and a communication plate, in which an upper surface of the communication plate is bonded to a lower surface of the pressure chamber substrate by an adhesive, the upper surface of the communication plate is provided with a supply opening and a discharge opening, the pressure chamber is longitudinal in an X direction, acute angle portions are formed by the wall surface portions that mutually form an acute angle at each end in the X direction of a bottom surface portion of the pressure chamber, and the acute angle portions do not overlap with the supply opening and the discharge opening in a laminating direction.

公开(公告)号：US20130265632A1

公开(公告)日：2013-10-10

申请号：US13848253

申请日：2013-03-21

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi AOKI ,  Harunobu KOMATSU ,  Shinobu YOKOKAWA

IPC: G02F1/167

CPC classification number: G02F1/167 ,  C09B67/0013 ,  C09B67/009 ,  G02F2001/1678

Abstract: An electrophoretic particle of the invention include: a mother particle; and a covering layer, wherein the covering layer includes a plurality of polymers, each of which includes a polymerization initiator which includes a polymerization initiation group linked to a surface of the mother particle and polymerization parts in which monomers are polymerized from the polymerization initiation group as a starting point, wherein each of the polymer include the polymerization initiator, a first polymerization part, which is coupled to the polymerization initiator, in which first monomers that includes monomers with cross-linking groups are polymerized, and a second polymerization part in which second monomers that does not include monomers with cross-linking groups are polymerized, and the polymers are linked to each other at the cross-linking groups of the first polymerization parts via cross-linking agent.

Abstract translation: 本发明的电泳粒子包括：母粒; 以及覆盖层，其中，所述覆盖层包含多个聚合物，每个聚合物包括聚合引发剂，所述聚合引发剂包括与所述母粒子的表面连接的聚合引发基团和其中单体从聚合引发基团聚合的聚合部分，作为 起始点，其中每个聚合物包括聚合引发剂，与聚合引发剂偶联的第一聚合部分，其中包含具有交联基团的单体的第一单体聚合，和第二聚合部分，其中第二聚合部分 不包含具有交联基团的单体的单体聚合，并且聚合物通过交联剂在第一聚合部分的交联基团处彼此连接。

公开(公告)号：US20240300242A1

公开(公告)日：2024-09-12

申请号：US18596765

申请日：2024-03-06

Applicant: SEIKO EPSON CORPORATION

Inventor： Kei KIYOSE ,  Harunobu KOIKE ,  Takashi AOKI

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/14274 ,  B41J2/1623

Abstract: There is provided a liquid discharge head including: a piezoelectric element; a pressure chamber substrate provided with a pressure chamber; and a vibration plate configured to apply a pressure to a liquid in the pressure chamber, in which the vibration plate includes an elastic film and an insulating film, the elastic film is provided in each of an active region and an inactive region of the vibration plate, and the insulating film is provided in the active region of the vibration plate and is not provided in a part of the inactive region of the vibration plate, and Y

公开(公告)号：US20230382113A1

公开(公告)日：2023-11-30

申请号：US18322379

申请日：2023-05-23

Applicant: SEIKO EPSON CORPORATION

Inventor： Harunobu KOIKE ,  Takashi AOKI

IPC: B41J2/14

CPC classification number: B41J2/14233

Abstract: A vibration plate includes a first layer containing silicon as a constituent element, a second layer containing a metal element other than zirconium as a constituent element, and a third layer containing zirconium as a constituent element. When a region of the vibration plate that overlaps with the pressure chamber and overlaps with the first electrode, the piezoelectric body layer, and the second electrode is an active region, and a region of the vibration plate that overlaps with the pressure chamber and does not overlap with the first electrode, the piezoelectric body layer, and the second electrode is an inactive region, the vibration plate has the first layer, the second layer, and the third layer in the active region, and has the first layer and the second layer and does not have the third layer in at least part of the inactive region.

公开(公告)号：US20140232629A1

公开(公告)日：2014-08-21

申请号：US14179181

申请日：2014-02-12

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi AOKI ,  Mitsutoshi MIYASAKA

IPC: G09G3/34

CPC classification number: G09G3/344 ,  G09G2300/0842 ,  G09G2310/0245 ,  G09G2310/06

Abstract: An electrophoretic display device includes pixel electrodes, common electrodes, an electrophoretic material, and storage capacity elements. An EPD capacity is sufficiently smaller than a storage capacity. The electrophoretic material includes first particles and second particles. Electric fields, which are generated between the pixel electrodes and the common electrodes when the first particles are dispersed in the vicinity of the common electrodes, include alternate electric fields in which a first strong electric field which faces a first direction and a second weak electric field which is weaker than the first strong electric field are alternately repeated at a common potential cycle. In this way, the first particles are effectively separated from the second particles, and thus the electrophoretic display device, which has a high contrast ratio and which shows high image quality, is implemented.

Abstract translation: 电泳显示装置包括像素电极，公共电极，电泳材料和存储容量元件。 EPD容量足够小于存储容量。 电泳材料包括第一颗粒和第二颗粒。 当第一颗粒分散在公共电极附近时，在像素电极和公共电极之间产生的电场包括交替的电场，其中面向第一方向的第一强电场和第二弱电场 其弱于第一强电场在公共电位周期交替重复。 以这种方式，第一颗粒有效地与第二颗粒分离，因此实现了具有高对比度并且显示高图像质量的电泳显示装置。