公开(公告)号：US20250010633A1

公开(公告)日：2025-01-09

申请号：US18764738

申请日：2024-07-05

Applicant: CANON KABUSHIKI KAISHA

Inventor： TAKAYUKI NAKAJIMA ,  KEISUKE IINUMA ,  TATSUO NANJO ,  WATARU TAKAHASHI

IPC: B41J2/19 ,  B41J2/14 ,  B41J2/175 ,  B41J29/02

Abstract: An object is to provide a liquid ejection head thinner than ones in the prior art even in a case where multiple flow channels are arranged. In a state where the liquid ejection head is in use, a first upstream flow channel has a first region being located above the first downstream flow channel vertically and being where a sectional area of the first upstream flow channel becomes smaller and smaller downwards vertically. The second upstream flow channel has a second region being located above the second downstream flow channel vertically and being where a sectional area of the second upstream flow channel becomes smaller and smaller downwards vertically. In a view seen in the first direction, the first downstream flow channel and the second downstream flow channel do not overlap with each other, while the first region and the second region overlap with each other.

公开(公告)号：US20240343044A1

公开(公告)日：2024-10-17

申请号：US18628695

申请日：2024-04-06

Applicant: CANON KABUSHIKI KAISHA

Inventor： SOJI KONDO ,  WATARU TAKAHASHI ,  TATSUO NANJO ,  TAKAYUKI NAKAJIMA ,  KEISUKE IINUMA

IPC: B41J2/175 ,  B09B3/30 ,  B09B101/02

CPC classification number: B41J2/17559 ,  B09B3/30 ,  B09B2101/02

Abstract: A cartridge includes an absorber to retain a liquid, a tank including an opening and an absorber chamber to hold the absorber, a lid member joined to the opening of the tank and including an air communication port communicating with atmosphere, and a partition member arranged between the lid member located inside the absorber chamber. The lid member includes a first protrusion to protrude toward the partition member, and the first protrusion is formed to surround the air communication port. The partition member includes a groove to be connected to the absorber chamber and a second protrusion to face the first protrusion. A communication path communicating with the air communication port is formed between the first protrusion and the second protrusion. In other words, it has the potential to contribute to the achievement of a sustainable society, such as a decarbonized society/circular society.

公开(公告)号：US20240300245A1

公开(公告)日：2024-09-12

申请号：US18416599

申请日：2024-01-18

Applicant: CANON KABUSHIKI KAISHA

Inventor： TAKASHI HAYASAKA ,  KEISUKE IINUMA ,  TATSUO NANJO ,  WATARU TAKAHASHI ,  HIROMASA TSUTSUMI ,  HIDEAKI MATSUMURA ,  YUSUKE NARATANI ,  TSUYOSHI SAEKI ,  TAIJI MARUYAMA ,  SHOTA ASADA ,  NORIO SAKURAI

IPC: B41J2/175

CPC classification number: B41J2/17523 ,  B41J2/17553

Abstract: A liquid storage container including a positioning configuration contributing to downsizing is provided. The container capable of storing liquid therein includes a fitting portion including a communication port establishing communication between an inside and an outside, wherein a supply member supplying liquid is fitted and can supply the inside with liquid via the communication port; a first positioning portion positioning the supply member at one point; and a second positioning portion including a guide provided in the fitting portion and capable of guiding the supply member to a position where the supply member is fitted into the fitting portion when the supply member is fitted into the fitting portion while being positioned by the first positioning portion and a restriction portion restricting movement of the supply member using the first positioning portion as a rotation axis in the position where the supply member is fitted into the fitting portion.

公开(公告)号：US20250065639A1

公开(公告)日：2025-02-27

申请号：US18813726

申请日：2024-08-23

Applicant: CANON KABUSHIKI KAISHA

Inventor： SHIGEKI FUKUI ,  TATSUO NANJO ,  KEISUKE IINUMA ,  TAKAYUKI NAKAJIMA ,  SOJI KONDO ,  WATARU TAKAHASHI

IPC: B41J2/175 ,  B41J2/165 ,  B41J2/185 ,  B41J2/19

Abstract: Provided are a print head and a method of manufacturing a print head which can reduce the number of parts and simplify the manufacturing process. A method includes: preparing first and second lid members as a lid member, the first lid member including a supply port through which an accommodation chamber can be supplied with a liquid, the second lid member not including the supply port; manufacturing a first print head by joining the first lid member to a housing, the first print head configured to eject the liquid from ejection ports with the accommodation chamber supplied with the liquid through the supply port; and manufacturing a second print head by joining the second lid member to the housing, the second print head being detachably attachable to a printing apparatus and configured to eject the liquid from the ejection ports without the accommodation chamber supplied with the liquid.

公开(公告)号：US20250065638A1

公开(公告)日：2025-02-27

申请号：US18794960

申请日：2024-08-05

Applicant: CANON KABUSHIKI KAISHA

Inventor： TATSUO NANJO ,  KEISUKE IINUMA ,  WATARU TAKAHASHI ,  KEIICHIRO TSUKUDA ,  TAKASHI HAYASAKA

IPC: B41J2/175

Abstract: Disclosed is a cartridge that includes a case including a storage portion for storing liquid and a flow path that communicates with the storage portion; an element substrate including an ejection port that communicates with the storage portion via the flow path and that ejects liquid contained in the storage portion; and an electric wiring substrate that is electrically connected to the element substrate. The case has a surface to which the element substrate and the electric wiring substrate are fixed. Viewed from a direction perpendicular to the surface, a slit is provided in at least one long side of an outer periphery of the surface.

公开(公告)号：US20250010626A1

公开(公告)日：2025-01-09

申请号：US18762423

申请日：2024-07-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： KEISUKE IINUMA ,  TATSUO NANJO ,  WATARU TAKAHASHI ,  HIROKI HAYASHI

IPC: B41J2/175

Abstract: Provided are a cartridge and a liquid ejection apparatus that can suppress the increase in size of the liquid ejection apparatus. To this end, in the cartridge, a plurality of storage chambers including absorbers are linearly arranged along the arrangement direction of the ejection ports in the ejection port row.

公开(公告)号：US20240059518A1

公开(公告)日：2024-02-22

申请号：US18449084

申请日：2023-08-14

Applicant: CANON KABUSHIKI KAISHA

Inventor： WATARU TAKAHASHI ,  SO MATSUMOTO

IPC: B65H9/16 ,  B65H7/10

CPC classification number: B65H9/166 ,  B65H7/10 ,  B65H2511/20 ,  B65H2404/742 ,  B65H2801/06

Abstract: A sheet conveyance apparatus includes a rotary member pair, a moving unit configured to move the rotary member pair in a width direction orthogonal to a sheet conveyance direction, an abutment member, an obliquely conveying portion, a detection portion, and a control unit. The control unit is configured to execute (1) a first mode of controlling the moving unit such that the rotary member pair is moved in the width direction based on a detection result of the detection portion before the sheet arrives at the obliquely conveying portion, and (2) a second mode of controlling the moving unit such that the rotary member pair is moved in a second direction regardless of a detection result of the detection portion in a state where the sheet is nipped by the rotary member pair and before the sheet arrives at the obliquely conveying portion.

公开(公告)号：US20250010627A1

公开(公告)日：2025-01-09

申请号：US18737989

申请日：2024-06-08

Applicant: CANON KABUSHIKI KAISHA

Inventor： SOJI KONDO ,  HIROKI HAYASHI ,  WATARU TAKAHASHI ,  TATSUO NANJO ,  KEISUKE IINUMA

IPC: B41J2/175

Abstract: An object is to provide a cartridge capable of preventing entry of bubbles into its ejection unit and maintaining the ejection performance to a greater extent than a conventional technique. A cartridge mountable to a printing apparatus includes: a first accommodation chamber capable of accommodating a liquid; and a first channel connecting the first accommodation chamber and a printing element board including an element configured to apply an energy for ejecting the liquid to the liquid. In a state where the cartridge is mounted to the printing apparatus, the first channel includes a first horizontal portion extending along a horizontal direction, a first connection portion connected to the printing element board and extending along a vertical direction, and a first reservoir portion capable of storing a bubble. As viewed along an extending direction of the first horizontal portion, the first reservoir portion is wider than the first connection portion.

公开(公告)号：US20240343041A1

公开(公告)日：2024-10-17

申请号：US18631953

申请日：2024-04-10

Applicant: CANON KABUSHIKI KAISHA

Inventor： TATSUO NANJO ,  WATARU TAKAHASHI ,  SOJI KONDO ,  KEISUKE IINUMA ,  TAKAYUKI NAKAJIMA

IPC: B41J2/175

CPC classification number: B41J2/17513 ,  B41J2/17553

Abstract: Provided is a cartridge including: an absorber configured to hold a liquid; a tank including an opening and an absorber chamber, wherein the absorber is accommodated in the absorber chamber; a lid member joined to the opening of the tank; and a partition member disposed between the absorber and the lid member located inside the absorber chamber, and including a protruding portion. The protruding portion of the partition member abuts on the absorber, and the lid member and the partition member are separate members.

公开(公告)号：US20250010628A1

公开(公告)日：2025-01-09

申请号：US18752383

申请日：2024-06-24

Applicant: CANON KABUSHIKI KAISHA

Inventor： KEISUKE IINUMA ,  WATARU TAKAHASHI ,  TATSUO NANJO

IPC: B41J2/175

Abstract: A cartridge, a liquid ejection apparatus, and a cartridge production method are provided, which can enhance a degree of freedom in designing the cartridge, and prevent an increase in the size of the apparatus. To this end, a case is configured to be divided into a box unit and a channel forming unit, the box unit and the channel forming unit are individually molded in a primary molding, and then are joined together by injecting a resin between the box unit and the channel forming unit in a secondary molding.