Patents by Inventor Junichiro Iri

Junichiro Iri has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250010614
    Abstract: A liquid ejection head, having an ejection port surface that includes an ejection port from which liquid is to be ejected, includes a protective tape. The protective tape is attached to the ejection port surface to block the ejection port. The protective tape includes at least a base material and an adhesive agent. The adhesive agent has a slit extending to an end portion of the protective tape, and the slit communicates with the atmosphere.
    Type: Application
    Filed: July 1, 2024
    Publication date: January 9, 2025
    Inventors: MAKOTO WATANABE, JUNICHIRO IRI
  • Patent number: 12162282
    Abstract: Breakage of components is suppressed at the time of bonding. A print head with a metal film formed on laminated layers includes an electric wiring layer electrical connection with a metal film, a protective film covering and protecting the electric wiring layer, a groove separating the protective film and the electric wiring layer around the metal film, and a resin film applied to the groove.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: December 10, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yusuke Hashimoto, Junichiro Iri
  • Patent number: 12129090
    Abstract: A package or container contains a biodegradable resin and a microcapsule including therein a decomposition accelerator for the biodegradable resin. The microcapsule includes an outer shell containing a resin composition having photodegradability.
    Type: Grant
    Filed: October 10, 2022
    Date of Patent: October 29, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Motoaki Sato, Junichiro Iri
  • Publication number: 20240351340
    Abstract: A liquid cartridge includes a first member, a second member bonded to the first member. A resin for bonding the first member and the second member is formed between the first member and the second member. A buffer configured to store resin is formed between the first member and the second member. The buffer has an opening that leads to a side surface of the liquid cartridge.
    Type: Application
    Filed: April 12, 2024
    Publication date: October 24, 2024
    Inventors: SHUICHI HASEGAWA, Yukuo Yamaguchi, KEISUKE IINUMA, JUNICHIRO IRI
  • Publication number: 20240343042
    Abstract: Provided is a cartridge including: an absorbent; a tank including an absorbent holder configured to accommodate the absorbent; a lid member joined to the tank; and a partition member arranged between the lid member and the absorbent located in the absorbent holder. In the cartridge, the lid member includes a first engagement portion, the partition member includes a second engagement portion, the first engagement portion and the second engagement portion are engaged with each other, and parts of outer peripheries of surfaces of the lid member and the partition member facing each other have an interval therebetween in an overlapping direction in which the lid member and the partition member overlap each other.
    Type: Application
    Filed: April 10, 2024
    Publication date: October 17, 2024
    Inventors: HIROAKI KUSANO, SATORU TAKAHASHI, NARUMI SHINOHARA, YUSUKE HASHIMOTO, MOTOAKI SATO, JUNICHIRO IRI
  • Publication number: 20240343040
    Abstract: A cartridge includes a liquid absorbent, a tank, and a partition member. The liquid absorbent holds liquid. The tank has an opening and an absorbent holder to store the liquid absorbent. The lid member is joined to the opening of the tank. The partition member is arranged between the liquid absorbent positioned inside the absorbent holder and the lid member. The lid member includes a plurality of protrusion portions, and the partition member is gripped by the plurality of protrusion portions.
    Type: Application
    Filed: April 9, 2024
    Publication date: October 17, 2024
    Inventors: ISAO OTANI, JUNICHIRO IRI, YUSUKE HASHIMOTO, MASATOSHI OHIRA
  • Publication number: 20240308218
    Abstract: A liquid ejection head includes an ejection orifice forming surface and a protection tape. The ejection orifice forming surface includes a plurality of ejection orifices from which liquid is to be ejected. The protection tape is bonded to the ejection orifice forming surface in a peelable manner. The protection tape includes a base material and an adhesive layer laminated on the base material, and the adhesive layer is brought into contact with the ejection orifice forming surface. The protection tape further includes at least one penetration portion that penetrates at least the base material in a thickness direction of the protection tape at a position being substantially flat and distant from the plurality of ejection orifices in the ejection orifice forming surface.
    Type: Application
    Filed: March 11, 2024
    Publication date: September 19, 2024
    Inventors: MASATOMO OJIMA, TOMOHISA ATSUTA, JUNICHIRO IRI
  • Publication number: 20240286408
    Abstract: A liquid ejection head includes: a housing; an element substrate disposed on a first surface of the housing and including an energy generation element to eject a liquid; a relay wiring member disposed on a second surface at a position protruding in a liquid ejection direction more than the first surface and surrounding the element substrate; a lead connecting the element substrate with the relay wiring member; a filling portion provided between the housing and a side surface of the element substrate; a connection portion surrounded between the housing and the element substrate, connected with the filling portion, and adjacent to the lead; and a sealant sealing the filling portion, the connection portion, and the lead, in which a distance between the housing and the element substrate is smaller in a portion adjacent to the second surface than in a portion between the first surface and the second surface.
    Type: Application
    Filed: February 27, 2024
    Publication date: August 29, 2024
    Inventors: MITSURU CHIDA, JUNICHIRO IRI
  • Publication number: 20240269987
    Abstract: Provided is a technique in which liquid leaking in attachment and detachment of a liquid storage container to and from a printing apparatus can be retained with a simple, space-saving configuration. The liquid storage container can be attached to the printing apparatus. The liquid storage container includes a storage portion that stores the liquid, a supply port that supplies the liquid stored in the storage portion to the printing apparatus, and a liquid retaining portion that is capable of retaining the liquid leaking in the attachment and detachment of the liquid storage container to and from the printing apparatus by using capillary force. The liquid retaining portion extends along an outer peripheral surface of the supply port, in an attachment direction in which the liquid storage container is attached to the printing apparatus.
    Type: Application
    Filed: May 17, 2023
    Publication date: August 15, 2024
    Inventors: Makoto Watanabe, Junichiro Iri, Naruyuki Nojo, Isao Otani, Hiroaki Kusano, Satoru Takahashi
  • Publication number: 20240239104
    Abstract: A method for manufacturing a liquid ejection head including an element substrate having an ejection port forming member including an ejection port and an energy generating element for supplying energy for ejecting liquid to the ejection port includes preparing a wafer having the energy generating element and the ejection port forming member on a first surface, forming a recessed portion in a second surface, and cutting the wafer. The wafer is cut along cutting lines provided on the first surface to form element substrates and including a first cutting line and a second cutting line intersecting the first cutting line. The recessed portion is formed at a position overlapping the cutting lines except in an intersection portion of the first and second cutting lines. In the intersection portion, the recessed portion is formed corresponding to only one of the first cutting line and the second cutting line.
    Type: Application
    Filed: January 5, 2024
    Publication date: July 18, 2024
    Inventors: TAKANOBU MANABE, JUNICHIRO IRI, NAOYUKI KAMANO
  • Patent number: 12023931
    Abstract: A manufacturing method of a liquid ejection head includes steps of providing an ejection orifice forming member on one surface of a wafer, with an energy-generating element being provided on the one surface of the wafer; forming a recess on the other surface of the wafer; and dicing the wafer along a plurality of dicing lines. The plurality of dicing lines include a dicing line extending in one direction and a dicing line extending in a direction crossing the one direction, and the recess is formed on each of positions overlapping the dicing lines except for an intersection part where the dicing line extending in the one direction intersects the dicing line extending in the direction crossing the one direction.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: July 2, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yusuke Hashimoto, Junichiro Iri, Makoto Watanabe, Masatomo Ojima
  • Publication number: 20240123731
    Abstract: A method of manufacturing a liquid discharging head includes preparing a wafer provided with an element and a discharge port formation member on a front surface of the wafer, forming a recessed portion in a rear surface of the wafer, attaching the rear surface of the wafer and a dicing tape, cutting the wafer along cutting lines to form an element board, and connecting an electric wiring board and a terminal of the element board. The element board includes a discharge port formation member having a discharge port for discharging liquid and includes the element to supply energy to the discharge port for liquid discharge. The recessed portion is formed at a location corresponding to the cutting lines, and an area of a region where the terminal overlaps the recessed portion is smaller than an area of a region where the terminal does not overlap the recessed portion.
    Type: Application
    Filed: October 13, 2023
    Publication date: April 18, 2024
    Inventors: NAOYUKI KAMANO, JUNICHIRO IRI, TAKANOBU MANABE
  • Publication number: 20240051299
    Abstract: A liquid discharge cartridge manufacturing method includes a first step of individually shaping a first shaped member and a second shaped member that form a housing of a liquid discharge cartridge, and a second step of joining the first shaped member and the second shaped member to be bonded to each other with molten resin. The first step includes shaping a wall section in the first shaped member, the wall section forming a recess for accommodating the molten resin, and shaping a projection in the second shaped member, the projection extending such that the projection is located at the outer side of the wall section and adjacent to the wall section, with a predetermined gap being formed between the projection and the wall section, when the first and second shaped members are joined.
    Type: Application
    Filed: October 25, 2023
    Publication date: February 15, 2024
    Inventors: Shuichi Hasegawa, Yukuo Yamaguchi, Keisuke Iinuma, Junichiro Iri
  • Publication number: 20240042763
    Abstract: A liquid ejection head includes: a channel member; an ejection substrate being disposed in a recess of the channel member and having a nozzle row of nozzles arranged in a first direction; and a sealing member having a thermosetting resin filled in a predetermined space defined by side and bottom surfaces of the recess and a side surface of the ejection substrate and located upstream of the ejection substrate in a second direction. The sealing member includes: a first sealing portion having a first resin located near the bottom surface of the predetermined space; and a second sealing portion having a second resin located near an ejection surface of the ejection substrate. A coefficient of linear expansion of the first resin is less than that of the second resin, and a specific gravity of the first resin is greater than that of the second resin.
    Type: Application
    Filed: July 27, 2023
    Publication date: February 8, 2024
    Inventors: HIROAKI KUSANO, JUNICHIRO IRI
  • Publication number: 20240042758
    Abstract: Provided is a technique which can inspect liquid ejection energy without changing electric wiring on an ejection element substrate of a liquid ejection head or ejecting liquid from the liquid ejection head. A liquid ejection head as an ejection-energy inspection target includes an ejection element substrate having a substrate, a heat generation portion having an electrothermal converter on the substrate, a protective film covering the electrothermal converter, and an organic layer covering the electrothermal converter and the protective film. For this liquid ejection head, an electrical resistance value of the electrothermal converter is acquired as a first measurement result, and the film thickness of a film thickness measurement portion of the ejection element substrate where the protective film is exposed is acquired as a second measurement result. Further, information on ejection energy needed to eject liquid from the ejection port is obtained based on the first and second measurement results.
    Type: Application
    Filed: August 3, 2023
    Publication date: February 8, 2024
    Inventors: SATORU TAKAHASHI, JUNICHIRO IRI
  • Publication number: 20240025179
    Abstract: A liquid storage container attachable to and detachable from a recording apparatus includes: a liquid storage bag that includes a supply port for supplying liquid to a port to be supplied of the recording apparatus and is configured to store liquid; an opening and closing body movable between an open position that allows liquid to be supplied from the supply port to the port to be supplied and a closed position that closes the supply port; a handle configured to move the opening and closing body between the open position and the closed position; and a lock mechanism configured to lock the opening and closing body in the closed position so as to permit the opening and closing body to move to the open position only when the liquid storage container is in an attached state in which the liquid storage container is attached to the recording apparatus.
    Type: Application
    Filed: July 17, 2023
    Publication date: January 25, 2024
    Inventors: SATORU TAKAHASHI, JUNICHIRO IRI, HIROAKI KUSANO, ISAO OTANI, NARUYUKI NOJO
  • Publication number: 20240017551
    Abstract: Provided is a liquid container attachable to a printing apparatus and configured to contain a liquid to be supplied to the printing apparatus, including: a container chamber configured to contain the liquid; a supply unit provided on a tip end side in a direction of attachment to be attached to the printing apparatus and configured to connect the container chamber to the printing apparatus; and a liquid holding unit provided to an inner peripheral surface of the supply unit and capable of holding the liquid by using a capillary force, the liquid leaking out in a case of attaching and detaching the liquid container to and from the printing apparatus, in which a length of the liquid holding unit in the direction of attachment of the liquid container is larger than a length of the liquid holding unit in a direction intersecting with the direction of attachment.
    Type: Application
    Filed: May 25, 2023
    Publication date: January 18, 2024
    Inventors: NARUYUKI NOJO, JUNICHIRO IRI, MAKOTO WATANABE, SATORU TAKAHASHI, ISAO OTANI, HIROAKI KUSANO
  • Publication number: 20240010004
    Abstract: There is used a container which includes a first member which serves as a lid portion, a second member which serves as a container portion, and resin with which a flow path, which is formed between the first member and the second member when the first member and the second member come into contact with each other, is filled, the resin bonds the first member and the second member to each other by reaching a filling target position after flowing in from an inflow opening to the flow path, and an opening portion exposed to an exterior of the container is provided at a position where the resin having flowed in from the inflow opening flows out beyond the filling target position in the flow path.
    Type: Application
    Filed: June 27, 2023
    Publication date: January 11, 2024
    Inventors: SHUICHI HASEGAWA, YUKUO YAMAGUCHI, KEISUKE IINUMA, JUNICHIRO IRI
  • Patent number: 11840092
    Abstract: A liquid ejection head includes an ejection-port formed member including liquid ejection ports, a substrate including liquid supply ports for supplying liquid to the ejection ports and a partition between the liquid supply ports, and a substrate supporting member. The liquid supply ports extend along the longitudinal direction of the substrate when viewed from a position facing the main surface of the substrate. The liquid supply ports are arrayed along the lateral direction of the substrate when viewed from the position facing the main surface. The partition includes a non-contact portion that is not in contact with the supporting member and a contact portion that is in contact with the supporting member. Of the liquid supply ports, adjacent liquid supply ports communicate with each other in the lateral direction through a gap between the non-contact portion and the supporting member, and liquid flows through the gap.
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: December 12, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Makoto Watanabe, Junichiro Iri, Naruyuki Nojo, Motoaki Sato, Yusuke Hashimoto
  • Patent number: 11833822
    Abstract: A liquid discharge cartridge manufacturing method includes a first step of individually shaping a first shaped member and a second shaped member that form a housing of a liquid discharge cartridge, and a second step of joining the first shaped member and the second shaped member to be bonded to each other with molten resin. The first step includes shaping a wall section in the first shaped member, the wall section forming a recess for accommodating the molten resin, and shaping a projection in the second shaped member, the projection extending such that the projection is located at the outer side of the wall section and adjacent to the wall section, with a predetermined gap being formed between the projection and the wall section, when the first and second shaped members are joined.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: December 5, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shuichi Hasegawa, Yukuo Yamaguchi, Keisuke Iinuma, Junichiro Iri