公开(公告)号：US10682863B2

公开(公告)日：2020-06-16

申请号：US16006312

申请日：2018-06-12

Applicant: CANON KABUSHIKI KAISHA

Inventor： Takuro Yamazaki ,  Toru Nakakubo ,  Kazuhiro Yamada ,  Yoshiyuki Nakagawa ,  Akiko Hammura

IPC: B41J2/175 ,  B41J2/045 ,  B41J29/02 ,  B41J2/155 ,  B41J2/18

Abstract: In a configuration having a circulation flow path in association with an ejection element, a liquid ejecting apparatus is capable of circulating liquid suitably and maintaining stable ejection operation while reducing liquid vaporization, a power supply capacity, and the effect of noise. For this purpose, in a configuration in which liquid delivery mechanisms that facilitate a flow in a flow path are prepared in association with pressure chambers, the liquid delivery mechanisms are divided into a plurality of blocks and the liquid delivery mechanisms included in each of the blocks are driven at different timings.

公开(公告)号：US10589536B2

公开(公告)日：2020-03-17

申请号：US16379360

申请日：2019-04-09

Applicant: CANON KABUSHIKI KAISHA

Inventor： Toru Nakakubo ,  Takuro Yamazaki ,  Kazuhiro Yamada ,  Yoshiyuki Nakagawa

IPC: B41J2/18 ,  B41J2/045 ,  B41J2/155 ,  B41J2/14 ,  B41J2/175 ,  B41J2/21

Abstract: The present invention provides a liquid ejecting module capable of performing stable ejection operation while circulating and supplying fresh ink to the vicinity of ejection ports arranged in high density. To achieve this, a liquid ejecting module includes an element arranged face in which a plurality of ejecting elements are arranged, a circulation flow path including a supply flow path which supplies liquid to a pressure chamber and a collection flow path which collects liquid from the pressure chamber, and a liquid delivery mechanism provided in the circulation flow path for circulating liquid in the pressure chamber. The liquid delivery mechanism is located lower than the element arranged face.

公开(公告)号：US10421287B2

公开(公告)日：2019-09-24

申请号：US15992667

申请日：2018-05-30

Applicant: CANON KABUSHIKI KAISHA

Inventor： Takuro Yamazaki ,  Toru Nakakubo ,  Kazuhiro Yamada ,  Yoshiyuki Nakagawa ,  Yoshihiro Hamada ,  Koichi Ishida ,  Shingo Okushima

IPC: B41J2/18 ,  B41J2/14

Abstract: A plurality of pressure chambers are formed in a circulation channel for liquid in order to array ejection ports in a high density in association with the circulation channel. The circulation channel is connected to a penetration supply path and a penetration recovery path that penetrate a substrate.

公开(公告)号：US20190016137A1

公开(公告)日：2019-01-17

申请号：US16028846

申请日：2018-07-06

Applicant: CANON KABUSHIKI KAISHA

Inventor： Toru Nakakubo ,  Satoshi Kimura ,  Shingo Okushima

IPC: B41J2/165

CPC classification number: B41J2/16505 ,  B41J2/16508 ,  B41J2/16585 ,  B41J2002/16502

Abstract: A liquid ejection head and a liquid ejection apparatus capable of maintaining a high reliability is provided. For this purpose, a first cover member including an aperture and covering a surface of a flow path member facing a print medium of a liquid ejection head, and a second cover member covering a side surface of the liquid ejection head are provided, and a displacement absorption part that absorbs the displacement between the first cover member and the second cover member is provided. Furthermore, the space between the aperture and the flow path member is sealed with a sealing material.

公开(公告)号：US20190009524A1

公开(公告)日：2019-01-10

申请号：US16026230

申请日：2018-07-03

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yohei Nakamura ,  Kazuhiro Yamada ,  Toru Nakakubo ,  Yoshiyuki Nakagawa ,  Naozumi Nabeshima

IPC: B41J2/045 ,  B41J29/38 ,  B41J2/175 ,  B41J2/165

Abstract: A liquid ejection apparatus includes a supply control section 401 that controls the supply and stop of a liquid to pressure chambers communicating with ejection ports to eject the liquid, and a negative pressure generating section 1004 that generates a negative pressure. The liquid ejection apparatus also includes a negative pressure control unit 230 using the negative pressure generated by the negative pressure generating section 1004 to adjust the pressure of the liquid flowing through a collection channel. To stop a flow of the liquid, the supply control section 401 stops the supply of the liquid, and then the negative pressure generating section 1004 is stopped.

公开(公告)号：US20150077455A1

公开(公告)日：2015-03-19

申请号：US14486893

申请日：2014-09-15

Applicant: CANON KABUSHIKI KAISHA

Inventor： Hiromitsu Morita ,  Toru Nakakubo

IPC: B41J29/393 ,  B41J2/045

CPC classification number: B41J2/04581 ,  B41J2/04573 ,  B41J2/14209

Abstract: A liquid ejection head, including: a plurality of ejection ports from which a liquid is ejected; a plurality of pressure chambers which communicate with the plurality of ejection ports and are constituted by piezoelectric portions that eject a liquid from the ejection ports by shrink-deforming; and a control unit configured to drive the piezoelectric portions so that the pressure chambers shrink-deform, wherein the control unit controls driving timing of the piezoelectric portions such that, after any of the plurality of pressure chambers is made to shrink-deform, a pressure chamber disposed not to adjoin the shrink-deformed pressure chamber is made to shrink-deform.

Abstract translation: 一种液体喷射头，包括：喷射液体的多个喷射口; 多个压力室，与多个喷射口连通，并由压缩部分构成，压电部通过收缩变形从喷射口喷出液体; 以及控制单元，被配置为驱动所述压电部分使得所述压力室收缩变形，其中所述控制单元控制所述压电部件的驱动定时，使得在所述多个压力室中的任何一个使得所述压缩室被收缩变形之后， 设置成不与收缩变形的压力室邻接的室被收缩变形。

公开(公告)号：US20140359984A1

公开(公告)日：2014-12-11

申请号：US14292092

申请日：2014-05-30

Applicant: CANON KABUSHIKI KAISHA

Inventor： Ryota KASHU ,  Toru Nakakubo

IPC: B41J2/16

CPC classification number: B41J2/1607 ,  B41J2/14209 ,  B41J2/1609 ,  B41J2/1623 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2/1634 ,  B41J2/1642 ,  B41J2/1643 ,  B41J2/1646 ,  B41J2002/14491 ,  B41J2202/20 ,  Y10T29/42

Abstract: A liquid ejecting device is manufactured by bonding a wiring substrate to a liquid ejection head by means of an adhesive film. The liquid ejection head has a pressure chamber for ejecting liquid and an air chamber disposed adjacent to the pressure chamber with a wall of a piezoelectric body interposed therebetween. A pair of electrodes is provided, one on the wall surface of the pressure chamber and the other on the wall surface of the air chamber so as to sandwich the piezoelectric body wall. The wiring substrate has a connection terminal which is to be electrically connected at least to the electrode on the pressure chamber side at the time of bonding. The liquid ejection head has an opening for introducing liquid into the pressure chamber, while the wiring substrate has a through hole to be aligned with the opening at the time of bonding.

Abstract translation: 通过粘合膜将布线基板粘接到液体喷射头来制造液体喷射装置。 液体喷射头具有用于喷射液体的压力室和邻近压力室设置的空气室，压电体的壁插入其间。 设置一对电极，一个在压力室的壁表面上，另一个在空气室的壁表面上，以夹持压电体壁。 布线基板具有在接合时至少与压力室侧的电极电连接的连接端子。 液体喷射头具有用于将液体引入压力室的开口，而布线基板具有在接合时与开口对准的通孔。

公开(公告)号：US08876263B2

公开(公告)日：2014-11-04

申请号：US13916981

申请日：2013-06-13

Applicant: Canon Kabushiki Kaisha

Inventor： Naoto Sasagawa ,  Toru Nakakubo

IPC: B41J2/045 ,  B41J2/14

CPC classification number: B41J2/14201 ,  B41J2/14209

Abstract: A liquid ejection head has a plurality of pressure chambers communicating with respective ejection ports and a plurality of hollow spaces arranged around the pressure chambers in a piezoelectric block which is produced by laminating a plurality of piezoelectric plates made of a piezoelectric material. Each of the plurality of piezoelectric plates has a plurality of first grooves on a first surface and a plurality of second grooves on a second surface opposite to the first surface. The plurality of piezoelectric plates are laminated so as to put the first surfaces or the second surfaces of adjacent piezoelectric plates into contact with each other such that the pressure chambers are formed as the first grooves of the paired first surfaces are placed vis-a-vis and the hollow spaces are formed as the second grooves of the paired second surfaces are placed vis-à-vis.

Abstract translation: 液体喷射头具有与各个喷射口连通的多个压力室和在由压电材料制成的多个压电板层压制造的压电块中围绕压力室布置的多个中空空间。 多个压电板中的每一个在第一表面上具有多个第一凹槽和在与第一表面相对的第二表面上的多个第二凹槽。 多个压电板被层叠以使相邻的压电板的第一表面或第二表面彼此接触，使得压力室形成为成对的第一表面的第一凹槽相对于 并且当配对的第二表面的第二凹槽相对放置时，形成中空空间。

公开(公告)号：US20130342615A1

公开(公告)日：2013-12-26

申请号：US13916981

申请日：2013-06-13

Applicant: CANON KABUSHIKI KAISHA

Inventor： Naoto Sasagawa ,  Toru Nakakubo

IPC: B41J2/14

CPC classification number: B41J2/14201 ,  B41J2/14209

Abstract: A liquid ejection head has a plurality of pressure chambers communicating with respective ejection ports and a plurality of hollow spaces arranged around the pressure chambers in a piezoelectric block which is produced by laminating a plurality of piezoelectric plates made of a piezoelectric material. Each of the plurality of piezoelectric plates has a plurality of first grooves on a first surface and a plurality of second grooves on a second surface opposite to the first surface. The plurality of piezoelectric plates are laminated so as to put the first surfaces or the second surfaces of adjacent piezoelectric plates into contact with each other such that the pressure chambers are formed as the first grooves of the paired first surfaces are placed vis-a-vis and the hollow spaces are formed as the second grooves of the paired second surfaces are placed vis-à-vis.

Abstract translation: 液体喷射头具有与各个喷射口连通的多个压力室和在由压电材料制成的多个压电板层压制造的压电块中围绕压力室布置的多个中空空间。 多个压电板中的每一个在第一表面上具有多个第一凹槽和在与第一表面相对的第二表面上的多个第二凹槽。 多个压电板被层叠以使相邻的压电板的第一表面或第二表面彼此接触，使得压力室形成为成对的第一表面的第一凹槽相对于 并且当配对的第二表面的第二凹槽相对放置时，形成中空空间。

公开(公告)号：US12064969B2

公开(公告)日：2024-08-20

申请号：US18142431

申请日：2023-05-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： Kazuhiro Yamada ,  Yoshiyuki Nakagawa ,  Toru Nakakubo ,  Ryo Kasai ,  Takuro Yamazaki

IPC: B41J2/175 ,  B41J2/14 ,  B41J2/16

CPC classification number: B41J2/175 ,  B41J2/14233 ,  B41J2/1631

Abstract: A liquid ejection head includes a print element substrate including multiple ejection openings, pressure chambers, a common flow path, and pumps, the pumps being configured to circulate liquid between the common flow path and the pressure chamber; and a flow path member laminated to the print element substrate. The flow path member includes a supply flow path and a collection flow path, the supply flow path being configured to supply liquid to the print element substrate, and the collection flow path being configured to collect liquid that is not ejected. The supply flow path and the collection flow path have liquid connection with the same common flow path. A circulating pump generates a flow of liquid flowing in an order of the supply flow path, the common flow path, and the collection flow path, the circulating pump being provided at a position different from the print element substrate.