公开(公告)号：US20250091354A1

公开(公告)日：2025-03-20

申请号：US18889898

申请日：2024-09-19

Applicant: SEIKO EPSON CORPORATION

Inventor： Tadahiro MIZUTANI ,  Tadashi WATANABE ,  Yuta KOIKE

IPC: B41J2/175

Abstract: An ink replenishment container that replenishes ink into a printer includes: a container body; and an ink outlet forming portion including a tube portion, in which the ink outlet forming portion includes a spring valve including a valve body mounted in the tube portion and a spring biasing the valve body toward an ink outlet, and a sealing member mounted in the tube portion and having a valve sealing portion in contact with the valve body in a valve-closed state, the sealing member has an inner circumferential wall and an elastic portion extending from the inner circumferential wall toward a center of the sealing member, and the elastic portion has slits extending in a radial direction from the center toward the inner circumferential wall, a plurality of small pieces divided by the slits, and a bent portion positioned between the plurality of small pieces and the inner circumferential wall.

公开(公告)号：US20170355196A1

公开(公告)日：2017-12-14

申请号：US15617834

申请日：2017-06-08

Applicant: Seiko Epson Corporation

Inventor： Satoshi SHINADA ,  Tadahiro MIZUTANI ,  Taku ISHIZAWA ,  Noriyuki FUKASAWA ,  Tadashi WATANABE ,  Ryoichi TANAKA ,  Eiko YANAGIDA

IPC: B41J2/175

CPC classification number: B41J2/17506 ,  B41J2/17509 ,  B41J2/17513 ,  B41J2/1752 ,  B41J2/17553 ,  B41J2/17596

Abstract: An ink replenish adjunctive device is used to replenish an ink to an ink tank that includes an ink inlet member having a flow path in an axial direction. The ink replenish adjunctive device includes a connection portion having an end that is connectable to the ink inlet member in a liquid-tight state, and an ink inflow portion that is configured to allow the ink flow toward the connection portion.

公开(公告)号：US20230311522A1

公开(公告)日：2023-10-05

申请号：US18127048

申请日：2023-03-28

Applicant: SEIKO EPSON CORPORATION

Inventor： Tadahiro MIZUTANI ,  Yoshihiro KOIZUMI ,  Taku ISHIZAWA ,  Shun OYA ,  Tadashi WATANABE ,  Seigo MIYAZAWA

IPC: B41J2/175

CPC classification number: B41J2/17506 ,  B41J2/17596

Abstract: An ink refill container for refilling a printer having an ink inlet flow-path member with ink includes: a container body portion configured to store ink; and an ink-outlet forming portion coupled to the container body portion and having a cylindrical portion forming an ink outlet. The ink-outlet forming portion includes a valve disposed in the cylindrical portion and configured to be opened by the ink inlet flow-path member inserted in the cylindrical portion, and closed by withdrawal of the ink inlet flow-path member from the cylindrical portion; a sealing member disposed at the ink outlet and configured to be in contact with the valve in a closed state of the valve; a holder member configured to hold at least one of the valve and the sealing member; and a fixing portion configured to fix the holder member to the cylindrical portion.

公开(公告)号：US20220126592A1

公开(公告)日：2022-04-28

申请号：US17507944

申请日：2021-10-22

Applicant: SEIKO EPSON CORPORATION

Inventor： Noriyuki FUKASAWA ,  Seigo MIYAZAWA ,  Tadashi WATANABE

IPC: B41J2/175

Abstract: An ink refilling container includes a bottle and a cap. The bottle includes an ink outlet forming portion including an ink outlet and a valve. The valve has valve segments segmented by slits. The cap includes a top portion, which faces the ink outlet when the cap is put on the bottle. A protruding portion extending in the central axis direction is provided at the center of the top portion. An annular-shaped sealing portion is provided on the top portion radially outside the protruding portion. The radius of the protruding portion is less than the length of the slit. In a sealed state wherein the cap is in thread engagement with the bottle and wherein the sealing portion seals the ink outlet, the tip end of the protruding portion is inserted in the inside of the bottle through the slits at the center region of the ink outlet.

公开(公告)号：US20200276828A1

公开(公告)日：2020-09-03

申请号：US16802609

申请日：2020-02-27

Applicant: Seiko Epson Corporation

Inventor： Tadashi WATANABE ,  Ippei OKUDA

IPC: B41J2/21 ,  B41J2/165

Abstract: An ink jet printing method includes an application step of ejecting a coloring ink composition functioning to color a printing medium through an ejection opening of a first ink jet head to apply the coloring ink composition onto a printing medium, and an application step of ejecting a non-coloring composition different from the coloring ink composition through an ejection opening of a second ink jet head to apply the non-coloring composition onto the printing medium. The coloring ink composition is circulated through a circulation path connected to the first ink jet head after being fed into the first ink jet head and before being ejected through the ejection opening of the first ink jet head. The non-coloring composition is not circulated through a circulation path after being fed into the second ink jet head and before being ejected through the ejection opening of the second ink jet head.

公开(公告)号：US20200070523A1

公开(公告)日：2020-03-05

申请号：US16675851

申请日：2019-11-06

Applicant: Seiko Epson Corporation

Inventor： Noriyuki FUKASAWA ,  Taku ISHIZAWA ,  Tadashi WATANABE ,  Ryoichi TANAKA ,  Tadahiro MIZUTANI

IPC: B41J2/175

Abstract: An ink replenish container comprises a container main body that is able to store the ink; an ink outlet formation member, attached to a front end side of the container main body, to form an ink outlet; and a cap attachable to a front end side of the ink outlet formation member. The ink outlet includes an outer circumferential surface and an inner circumferential surface located inward of the outer circumferential surface, the inner circumferential surface surrounding an opening through which the ink passes. The cap includes a first protrusion that is configured to contact with the outer circumferential surface of the ink outlet to form a first exit seal portion, and a second protrusion that is configured to contact with the inner circumferential surface of the ink outlet to form a second exit seal portion.

公开(公告)号：US20250121603A1

公开(公告)日：2025-04-17

申请号：US18916873

申请日：2024-10-16

Applicant: SEIKO EPSON CORPORATION

Inventor： Yuta KOIKE ,  Tadahiro MIZUTANI ,  Tadashi WATANABE

IPC: B41J2/175

Abstract: An ink container includes a liquid-contact section and a liquid-non-contact section. The liquid-contact section is made of a virgin plastic material and is to be in contact with ink in the ink container. The liquid-non-contact section is made of a material containing recycled plastics and is to be kept from contact with the ink.

公开(公告)号：US20240383254A1

公开(公告)日：2024-11-21

申请号：US18667144

申请日：2024-05-17

Applicant: SEIKO EPSON CORPORATION

Inventor： Tadashi WATANABE ,  Tadahiro MIZUTANI ,  Yoshihiro KOIZUMI ,  Yuta KOIKE

IPC: B41J2/175

Abstract: An ink refill container for refilling a printer with ink, includes: a container body; an ink-outlet forming portion including a tubular portion and a valve located in an ink outlet; and a cap configured to be detachably attached to the ink-outlet forming portion. The cap includes an inner top-surface portion. The inner top-surface portion includes a center protrusion configured to push the valve to open the valve, an annular protrusion configured to be in contact with the tubular portion to seal the tubular portion, and at least one of an annular peripheral wall portion and a plurality of ribs. A gap between the center protrusion and the peripheral wall portion or each of gaps between the ribs has a shape of a recess. The recess has a bottom on the inner top-surface portion side and an opening open toward the ink-outlet forming portion and is configured to hold ink.

公开(公告)号：US20210062027A1

公开(公告)日：2021-03-04

申请号：US17002057

申请日：2020-08-25

Applicant: Seiko Epson Corporation

Inventor： Tadashi WATANABE ,  Ippei OKUDA

IPC: C09D11/40 ,  C09D11/54 ,  C09D11/322 ,  C09D11/102 ,  B41M5/00 ,  B41M7/00

Abstract: An ink set to be used for printing poorly absorbent or non-absorbent printing media includes an aqueous non-white ink composition containing a non-white pigment, an aqueous white ink composition containing a white pigment, and a treatment liquid containing a flocculant and an alkanolamine.

公开(公告)号：US20210031552A1

公开(公告)日：2021-02-04

申请号：US16944590

申请日：2020-07-31

Applicant: Seiko Epson Corporation

Inventor： Ippei OKUDA ,  Tadashi WATANABE

IPC: B41M7/00 ,  B41J2/18

Abstract: Provided is an ink jet recording method using an ink jet recording apparatus having an ink jet head, the method including: a colored ink adhesion step of discharging an aqueous colored ink composition containing a coloring material from an ink jet head to adhere to a recording medium; and a clear ink adhesion step of discharging an aqueous clear ink composition from an ink jet head to adhere to the recording medium, in which the aqueous clear ink composition contains wax particles, the ink jet recording apparatus has a circulation path for circulating the aqueous clear ink composition, and in the clear ink adhesion step, the aqueous clear ink composition circulated in the circulation path is discharged.