公开(公告)号：US20210024764A1

公开(公告)日：2021-01-28

申请号：US16934109

申请日：2020-07-21

Applicant: Seiko Epson Corporation

Inventor： Michio NAKAMORI ,  Shinichi YAMAMOTO ,  Yasunari IKEDA

IPC: C09D11/328 ,  C09D11/102

Abstract: An aqueous ink jet composition of the present disclosure includes at least one specific dye selected from the group consisting of C.I. Disperse Orange 25 and C.I. Disperse Brown 27; an anionic dispersant; and a material A which is at least one compound selected from the group consisting of a polyalkylene glycol, a derivative thereof, and a phenyl azo compound different from the specific dye.

公开(公告)号：US20200207997A1

公开(公告)日：2020-07-02

申请号：US16727020

申请日：2019-12-26

Applicant: Seiko Epson Corporation

Inventor： Yasunari IKEDA ,  Hirofumi HOKARI ,  Shinichi YAMAMOTO ,  Shigeki KAWADA ,  Michio NAKAMORI

IPC: C09D11/322 ,  C08K5/42 ,  C08L25/08 ,  C08L41/00 ,  C08K5/45

Abstract: An aqueous ink jet composition according to the present disclosure includes: C.I. Disperse Red 364 as a first component; a second component which is a dispersant having a chemical structure of at least one of a sulfo group and a salt thereof; and a third component having an indigo skeleton and a chemical structure of at least one of a sulfo group and a salt thereof.

公开(公告)号：US20240075742A1

公开(公告)日：2024-03-07

申请号：US18458636

申请日：2023-08-30

Applicant: SEIKO EPSON CORPORATION

Inventor： Shinichi YAMAMOTO

IPC: B41J2/155 ,  B41J2/14 ,  B41J11/00

CPC classification number: B41J2/155 ,  B41J2/14201 ,  B41J11/0015

Abstract: A liquid ejecting head is a liquid ejecting head that is configured to eject a first liquid and a reaction liquid containing an aggregating agent for aggregating the first liquid. The liquid ejecting head includes a plurality of head units. A plurality of head chips having one or more nozzle rows are mounted on each of the plurality of head units, the plurality of head units are arranged side by side along a first axis, and a head chip having a first type nozzle row that is configured to eject the first liquid and a head chip having a second type nozzle row that is configured to eject the reaction liquid are mounted on different head units among the plurality of head units.

公开(公告)号：US20200239718A1

公开(公告)日：2020-07-30

申请号：US16775317

申请日：2020-01-29

Applicant: Seiko Epson Corporation

Inventor： Kenji KITADA ,  Hiroko HAYASHI ,  Yasunari IKEDA ,  Hisashi OKAMURA ,  Kenta KIKUCHI ,  Hirofumi HOKARI ,  Shinichi NAITO ,  Kazumasa OTSUKI ,  Michio NAKAMORI ,  Shinichi YAMAMOTO ,  Seiji KAGAMI ,  Shigeki KAWADA

IPC: C09D11/328 ,  C08K5/3415 ,  C08K5/1515 ,  C08K5/13 ,  C08L71/02 ,  C08K5/42

Abstract: An aqueous ink jet composition of the present disclosure includes: at least one dye selected from the group consisting of C.I. Solvent Yellow 160:1, C.I. Disperse Yellow 82, and C.I. Disperse Yellow 184; a material A which is at least one compound selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2), an ethylene oxide adduct of tristyrylphenol, a derivative of an ethylene oxide adduct of tristyrylphenol, a polyalkylene glycol, and a derivative of a polyalkylene glycol; and an anionic dispersant.

公开(公告)号：US20200207999A1

公开(公告)日：2020-07-02

申请号：US16727048

申请日：2019-12-26

Applicant: Seiko Epson Corporation

Inventor： Hisashi OKAMURA ,  Hiroko HAYASHI ,  Kenji KITADA ,  Yasunari IKEDA ,  Hirofumi HOKARI ,  Shinichi YAMAMOTO ,  Michio NAKAMORI ,  Shigeki KAWADA ,  Kenta KIKUCHI ,  Kazumasa OTSUKI ,  Seiji KAGAMI ,  Shinichi NAITO

IPC: C09D11/322 ,  C08L39/00 ,  C08L71/02

Abstract: An aqueous ink jet composition contains: C.I. Disperse Red 364; a material A which is at least one compound selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2), an ethylene oxide adduct of tristyrylphenol, a derivative of the ethylene oxide adduct of tristyrylphenol, a polyalkylene glycol, and a derivative of the polyalkylene glycol; and an anionic dispersant.

公开(公告)号：US20180264827A1

公开(公告)日：2018-09-20

申请号：US15915592

申请日：2018-03-08

Applicant: SEIKO EPSON CORPORATION

Inventor： Shinichi YAMAMOTO

IPC: B41J2/165 ,  C09D9/00

CPC classification number: B41J2/16552 ,  B41J2002/16567 ,  B41P2235/14 ,  B41P2235/50 ,  C09D9/00 ,  C09D9/005

Abstract: A cleaning liquid for a liquid ejecting apparatus to be fed into liquid channels of a liquid ejecting apparatus contains at least a water-soluble organic solvent, a silicone surfactant, and an acetylenic diol surfactant. At least part of the inner surfaces of the liquid channels is made from a fluorine-based material.

公开(公告)号：US20140118432A1

公开(公告)日：2014-05-01

申请号：US14066937

申请日：2013-10-30

Applicant: Seiko Epson Corporation

Inventor： Shinichi YAMAMOTO ,  Tomohiro Sayama ,  Yoshihiro Watanabe ,  Masashi Kamibayashi ,  Shinichi Tsubota

IPC: B41J2/045

CPC classification number: B41J2/04581 ,  B41J2/04588 ,  B41J2/04593 ,  B41J2/04596

Abstract: A slight oscillation waveform includes a first variation element that varies up to a first electric potential of a first polarity relative to a reference electric potential and thereby causes liquid contained in the pressure chamber to be subjected to a pressure variation, a second variation element which varies up to a second electric potential of a second polarity, which is different from the first polarity, relative to the reference electric potential and thereby causes liquid contained in the pressure chamber to be subjected to a pressure variation, a third variation element which varies up to a third electric potential of the first electric potential and thereby causes liquid contained in the pressure chamber to be subjected to a pressure variation, and a fourth variation element which varies up to the reference electric potential and thereby causes liquid contained in the pressure chamber to be subjected to a pressure variation.

Abstract translation: 轻微的振荡波形包括第一变化元件，其相对于参考电位变化到第一极性的第一电位，从而使包含在压力室中的液体受到压力变化，第二变化元件变化 高达与第一极性不同的第二极性的第二电位相对于参考电位，从而使容纳在压力室中的液体受到压力变化;第三变化元件，其变化直到 第一电位的第三电位，从而使包含在压力室中的液体受到压力变化;以及第四变化元件，其变化到参考电位，从而使包含在压力室中的液体成为 经受压力变化。