Patents by Inventor Mikiya Umeyama

Mikiya Umeyama 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: 20190366715
    Abstract: A method of manufacturing a liquid ejection head including a first step of having a molten resin becoming a first portion flow in between a first position in a first mold and a first position in a second mold and the molten resin becoming a second portion flow in between a second position in the first mold and a second position in the second mold; a second step of relatively moving the first and second molds, after opening the molds; a third step of closing the molds; a fourth step of joining the first and second portions, a fifth step of taking out the first and second portions and the sealing portion from the molds and mounting a recording element substrate; and a step of forming a space portion between a liquid supply path surface and a mounting surface.
    Type: Application
    Filed: May 23, 2019
    Publication date: December 5, 2019
    Inventors: Naoko Shimizu, Yukuo Yamaguchi, Mikiya Umeyama
  • Patent number: 10471719
    Abstract: A filter is compressed between facing surfaces of a first configuration component and a second configuration component, and a molten resin is poured in such a compressed state. Injection molding of the first configuration component and the second configuration component, joining of the configuration components, and sealing of the circumference of the filter are performed by a pair of metal molds.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: November 12, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kyosuke Toda, Yukuo Yamaguchi, Mikiya Umeyama, Satoshi Oikawa, Hiromasa Amma, Takuya Iwano, Satoshi Kimura, Naoko Tsujiuchi, Yasushi Iijima
  • Patent number: 10434694
    Abstract: A resin molding method includes a first molding step of molding a first molded part and a second molded part in a mold and a second molding step of joining the first molded part and the second molded part. In the first molding step, the second molded part is formed by injecting resin into an area where a first core movable in the first direction and a second core movable in a second direction are engaged. In the second molding step, the second molded part is joined to the first molded part by injecting the resin while the first core is in contact with the second molded part and the second core is removed from the second molded part. Areas where the first core and the second core are located in the first molding step become hollow areas connected to each other and part of ends of the first core in the first direction is not in contact with the second core.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: October 8, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yasushi Iijima, Yukuo Yamaguchi, Mikiya Umeyama, Satoshi Oikawa, Hiromasa Amma, Takuya Iwano, Satoshi Kimura, Naoko Tsujiuchi, Kyosuke Toda
  • Patent number: 10363692
    Abstract: There is provided a manufacturing method for molding a liquid supply member by using a first mold and a second mold in which the first mold is capable of being slid relatively to the second mold, the method including a first molding step of performing injection molding to form a first and second component parts of the liquid supply member at different positions from each other, an evacuating step of sliding the formed second component part in a direction intersecting with a direction of sliding of the first mold relative to the second mold and with a direction of the opening and the closing the first and the second mold, a contacting step of bringing the formed second component part into contact with the molded first component part, and a second molding step of performing injection molding to join the first component part and the second component part.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: July 30, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Satoshi Oikawa, Yukuo Yamaguchi, Mikiya Umeyama, Hiromasa Amma, Takuya Iwano, Satoshi Kimura, Naoko Tsujiuchi, Yasushi Iijima, Kyosuke Toda
  • Patent number: 10307967
    Abstract: Provided is construction that in die slide injection molding, surely leaves each part in a mold on a specified side in the stage of opening a molding mold. In order to accomplish this, in an opening step, a push-out mechanism that applies a force on at least one of the individual parts is used to make the part surely belong to a desired mold.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: June 4, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kyosuke Toda, Yukuo Yamaguchi, Mikiya Umeyama, Satoshi Oikawa, Hiromasa Amma, Takuya Iwano, Satoshi Kimura, Naoko Tsujiuchi, Yasushi Iijima
  • Patent number: 10300643
    Abstract: First and second constituting components are injection-molded and joined within one pair of molds. In order to join the first and second constituting components, one of the respective regions of the first and second constituting components abutted to each other is pushed into the other.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: May 28, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Naoko Tsujiuchi, Yukuo Yamaguchi, Mikiya Umeyama, Satoshi Oikawa, Hiromasa Amma, Takuya Iwano, Satoshi Kimura, Yasushi Iijima, Kyosuke Toda
  • Patent number: 10081185
    Abstract: An opposed surface of a first flow path forming member has a groove portion forming a supply passage, and a protruding portion protruding from the edge of the groove portion to form the side wall of the groove portion. An opposed surface of a second flow path forming member has a lid portion that abuts against the protruding portion of the first flow path forming member to cover the opening of the groove portion in the first flow path forming member. A joining member is formed by injection-molding of a resin to abut against an outer surface of the protruding portion of the first flow path forming member and the opposed surfaces of the first and second flow path forming members.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: September 25, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoshi Kimura, Yukuo Yamaguchi, Mikiya Umeyama, Yasushi Iijima, Kyosuke Toda, Naoko Tsujiuchi, Hiromasa Amma, Takuya Iwano, Satoshi Oikawa
  • Patent number: 10071512
    Abstract: Provided is a method for manufacturing a liquid-ejecting head whereby in die slide injection molding it is possible to stably inject resin in secondary molding without damaging the shapes of parts that were formed in primary molding. In order for that, in the connecting section in which a convex section of a cover member is inserted into an opening of a liquid-supply member, the closest distance to the opening in the area where secondary resin is injected is made larger than the gap between the opening and the convex section. As a result, the resin is prevented from flowing into a liquid path during the secondary molding.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: September 11, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Satoshi Kimura, Yukuo Yamaguchi, Mikiya Umeyama, Satoshi Oikawa, Hiromasa Amma, Takuya Iwano, Naoko Tsujiuchi, Yasushi Iijima, Kyosuke Toda
  • Patent number: 9981476
    Abstract: A liquid discharge head includes a recording element substrate including a recording element, an electronic substrate disposed outside the recording element substrate, an electric element mounted on the electronic substrate, a housing that supports the recording element substrate and the electronic substrate and is made of a first resin material, and a cover member that surrounds and shields the electric element and is made of a second resin material, wherein the second resin material has higher heat resistance than the first resin material.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: May 29, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Chiaki Muraoka, Yukuo Yamaguchi, Mikiya Umeyama, Hiromasa Amma, Takuya Iwano, Tokuji Kudo, Shimpei Yoshikawa
  • Patent number: 9975346
    Abstract: Provided are a liquid ejection head, a liquid ejection apparatus and a manufacturing method for the liquid ejection head which make it possible to achieve both of high-speed printing and a reduction in number of recovering operations. A liquid chamber which is formed in a part of a flow passage that guides liquid to an ejection element substrate includes plural supply paths which are able to supply the liquid by capillarity, are connected together and are different from one another in width.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: May 22, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiromasa Amma, Mikiya Umeyama, Genji Inada, Takuya Iwano, Yasuyuki Takanaka, Masaya Uetsuki
  • Patent number: 9969167
    Abstract: A liquid ejection head has a plurality of ejection ports for ejecting a liquid, and a housing provided with a pair of liquid chambers which supply the liquid to a corresponding ejection port. A method for manufacturing the liquid ejection head includes: arranging a pair of mold pieces, of which width decreases gradually, to adjoin in the width direction thereof with the width decreasing in the opposite directions, molding a housing, and forming the pair of liquid chambers by drawing the pair of mold pieces from the molded housing in the direction in which the width increases.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: May 15, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiromasa Amma, Mikiya Umeyama, Genji Inada, Takuya Iwano
  • Patent number: 9931850
    Abstract: A housing and a cover member are injection-molded and these housing and cover member are joined within a pair of mold. When the housing and the cover member are joined by molten resin, a mold for suppressing deformation is positioned at a face of the housing opposite to a face receiving a pressure of the molten resin.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: April 3, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takuya Iwano, Yukuo Yamaguchi, Mikiya Umeyama, Satoshi Oikawa, Hiromasa Amma, Satoshi Kimura, Naoko Tsujiuchi, Yasushi Iijima, Kyosuke Toda
  • Publication number: 20180086064
    Abstract: An opposed surface of a first flow path forming member has a groove portion forming a supply passage, and a protruding portion protruding from the edge of the groove portion to form the side wall of the groove portion. An opposed surface of a second flow path forming member has a lid portion that abuts against the protruding portion of the first flow path forming member to cover the opening of the groove portion in the first flow path forming member. A joining member is formed by injection-molding of a resin to abut against an outer surface of the protruding portion of the first flow path forming member and the opposed surfaces of the first and second flow path forming members.
    Type: Application
    Filed: September 14, 2017
    Publication date: March 29, 2018
    Inventors: Satoshi Kimura, Yukuo Yamaguchi, Mikiya Umeyama, Yasushi Iijima, Kyosuke Toda, Naoko Tsujiuchi, Hiromasa Amma, Takuya Iwano, Satoshi Oikawa
  • Publication number: 20180029266
    Abstract: There is provided a liquid supply member capable of suppressing deformation of a liquid supply path and decrease in sealing property of a liquid supply path, during molding, and a manufacturing method of the liquid supply member. For that purpose, in die-slide injection molding that combines two components, a protection portion that protects a part of one component easily affected by heat and pressure, is provided on the other component.
    Type: Application
    Filed: July 13, 2017
    Publication date: February 1, 2018
    Inventors: Naoko Tsujiuchi, Yukuo Yamaguchi, Mikiya Umeyama, Satoshi Oikawa, Hiromasa Amma, Takuya Iwano, Satoshi Kimura, Yasushi Iijima, Kyosuke Toda
  • Publication number: 20180029267
    Abstract: There is provided a manufacturing method of a liquid supply member capable of suppressing decrease in sealing property of a liquid supply path and deformation of the liquid supply path or the external shape. For that purpose, a manufacturing process of a liquid supply member prevents inflow of a molten resin into a concave portion of a portion other than a liquid supply flow path in a liquid supply member.
    Type: Application
    Filed: July 13, 2017
    Publication date: February 1, 2018
    Inventors: Naoko Tsujiuchi, Yukuo Yamaguchi, Mikiya Umeyama, Satoshi Oikawa, Hiromasa Amma, Takuya Iwano, Satoshi Kimura, Yasushi Iijima, Kyosuke Toda
  • Publication number: 20180001527
    Abstract: A resin molding method includes a first molding step of molding a first molded part and a second molded part in a mold and a second molding step of joining the first molded part and the second molded part. In the first molding step, the second molded part is formed by injecting resin into an area where a first core movable in the first direction and a second core movable in a second direction are engaged. In the second molding step, the second molded part is joined to the first molded part by injecting the resin while the first core is in contact with the second molded part and the second core is removed from the second molded part. Areas where the first core and the second core are located in the first molding step become hollow areas connected to each other and part of ends of the first core in the first direction is not in contact with the second core.
    Type: Application
    Filed: June 23, 2017
    Publication date: January 4, 2018
    Inventors: Yasushi Iijima, Yukuo Yamaguchi, Mikiya Umeyama, Satoshi Oikawa, Hiromasa Amma, Takuya Iwano, Satoshi Kimura, Naoko Tsujiuchi, Kyosuke Toda
  • Publication number: 20170368829
    Abstract: A filter is compressed between facing surfaces of a first configuration component and a second configuration component, and a molten resin is poured in such a compressed state. Injection molding of the first configuration component and the second configuration component, joining of the configuration components, and sealing of the circumference of the filter are performed by a pair of metal molds.
    Type: Application
    Filed: June 21, 2017
    Publication date: December 28, 2017
    Inventors: Kyosuke Toda, Yukuo Yamaguchi, Mikiya Umeyama, Satoshi Oikawa, Hiromasa Amma, Takuya Iwano, Satoshi Kimura, Naoko Tsujiuchi, Yasushi Iijima
  • Publication number: 20170368728
    Abstract: A resin molding method includes a first molding step, a sliding step, a second molding step and a mold opening step. In the first molding step, first molded part supported in a fixed mold and a second molded part supported in a die slide mold are molded in different positions in a second direction. In the sliding step, the movable mold is removed in a first direction and the first molded part and the second molded part are aligned by the die slide mold is moved in the second direction. In the second molding step, the movable mold is clamped again with the fixed mold and resin is injected into engaged portions. Each of the first molded part and the second molded part includes at least one wall extending in the first direction, and in the second molding step, the first molded part and the second molded part are engaged with each other at sides of the walls extending in the first direction.
    Type: Application
    Filed: June 21, 2017
    Publication date: December 28, 2017
    Inventors: Satoshi Oikawa, Yukuo Yamaguchi, Mikiya Umeyama, Hiromasa Amma, Takuya Iwano, Satoshi Kimura, Naoko Tsujiuchi, Yasushi Iijima, Kyosuke Toda
  • Patent number: 9764554
    Abstract: There is provided a method for manufacturing a molded member having a hollow part. The method comprises a step for molding the hollow part by extracting a first piece, a second piece, a third piece and a fourth piece of a mold in four different directions. The second piece has an elongated shape in its extracting direction, the second piece and the fourth piece have extracting directions substantially opposed to each other, and at the molding, each of the first piece, the second piece, the third piece and the fourth piece abuts on at least one of the first piece, the second piece, the third piece and the fourth piece.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: September 19, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiromasa Amma, Yukuo Yamaguchi, Mikiya Umeyama, Satoshi Oikawa, Takuya Iwano, Satoshi Kimura, Naoko Tsujiuchi, Yasushi Iijima, Kyosuke Toda
  • Publication number: 20170120588
    Abstract: A liquid discharge head includes a recording element substrate including a recording element, an electronic substrate disposed outside the recording element substrate, an electric element mounted on the electronic substrate, a housing that supports the recording element substrate and the electronic substrate and is made of a first resin material, and a cover member that surrounds and shields the electric element and is made of a second resin material, wherein the second resin material has higher heat resistance than the first resin material.
    Type: Application
    Filed: October 25, 2016
    Publication date: May 4, 2017
    Inventors: Chiaki Muraoka, Yukuo Yamaguchi, Mikiya Umeyama, Hiromasa Amma, Takuya Iwano, Tokuji Kudo, Shimpei Yoshikawa