Patents by Inventor Taku Ishizawa

Taku Ishizawa 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: 20180015752
    Abstract: The liquid ejection apparatus includes: a liquid ejection head; a carriage that moves in the X direction; a supply roller that is provided at a position closer to a side of the carriage in the ?Y direction than to a side thereof in the +Y direction; and a discharge roller that is provided at a position closer to the side of the carriage in the +Y direction than to the side thereof in the ?Y direction. A plurality of cartridge slots are provided in the bottom of the carriage on a side in the +Z direction. The plurality of cartridge slots are arranged in the Y direction. The liquid ejection head is provided in the bottom of the carriage on a side in the ?Z direction, at a position between the supply roller and the discharge roller, the position being closer to the supply roller than to the discharge roller.
    Type: Application
    Filed: July 11, 2017
    Publication date: January 18, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Taku ISHIZAWA, Shun OYA
  • Publication number: 20170355194
    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.
    Type: Application
    Filed: June 8, 2017
    Publication date: December 14, 2017
    Applicant: Seiko Epson Corporation
    Inventors: Noriyuki FUKASAWA, Taku ISHIZAWA, Tadashi WATANABE, Ryoichi TANAKA, Tadahiro MIZUTANI
  • Publication number: 20170355191
    Abstract: An ink bottle comprises a container main body configured to contain ink that is to be supplied to an ink tank, an ink outlet forming portion provided on an end of the container main body and configured to include an ink outlet that causes the ink to be flowed out from the container main body, and a valve provided in the ink outlet forming portion and configured to seal the ink outlet in an openable and closable manner. The ink outlet is formed in an end face of the ink outlet forming portion. The end face is arranged to face an opposite side of the ink outlet forming portion that is opposite to a container main body side thereof. A first recess is formed in an outer side portion of the ink outlet on the end face to be recessed toward the container main body side.
    Type: Application
    Filed: June 6, 2017
    Publication date: December 14, 2017
    Applicant: Seiko Epson Corporation
    Inventors: Tadahiro MIZUTANI, Koichi TOBA, Ryoichi TANAKA, Taku ISHIZAWA, Manabu AKAHANE, Tadashi WATANABE, Noriyuki FUKASAWA
  • Publication number: 20170355195
    Abstract: An ink replenish container comprises a container main body that is able to store the ink; and an ink outlet formation member, attached to a front end side of the container main body, to form an ink outlet. The container main body includes a screw formation portion having a screw for engaging with the ink outlet formation member, and a shoulder portion provided on a front end side of the screw formation portion. The ink outlet formation member includes an abutting portion that abuts the shoulder portion.
    Type: Application
    Filed: June 8, 2017
    Publication date: December 14, 2017
    Applicant: Seiko Epson Corporation
    Inventors: Noriyuki FUKASAWA, Taku ISHIZAWA, Tadashi WATANABE, Ryoichi TANAKA, Tadahiro MIZUTANI
  • Publication number: 20170355196
    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.
    Type: Application
    Filed: June 8, 2017
    Publication date: December 14, 2017
    Applicant: Seiko Epson Corporation
    Inventors: Satoshi SHINADA, Tadahiro MIZUTANI, Taku ISHIZAWA, Noriyuki FUKASAWA, Tadashi WATANABE, Ryoichi TANAKA, Eiko YANAGIDA
  • Patent number: 9821561
    Abstract: Provided is an ink supply set having an ink containing body detachable from a liquid supply apparatus, and an electrical contact unit that is independent of the ink containing body. The ink containing body includes an ink containing portion, an ink guiding portion, and a first engaging portion, the electrical contact unit includes a circuit board and a substrate installation portion, and the liquid supply apparatus includes a liquid introduction portion and a movable support portion. In a state in which the first engaging portion and the substrate installation portion are respectively engaged with the movable support portion, the movable support portion is displaced to a connected position in which the ink guiding portion and the liquid introduction portion are connected.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: November 21, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Taku Ishizawa, Hiroyuki Kawate
  • Patent number: 9821560
    Abstract: Provided is an ink supply set configured to detach from a liquid supply apparatus and includes an ink containing portion, an ink guiding unit including an engaging portion, a flow path unit that guides the ink in the ink containing portion to the ink guiding portion, a circuit board, and a substrate installation portion that is independent from the ink guiding unit. The liquid supply apparatus includes a liquid introduction portion and a movable support portion. In a state in which the engaging portion and the substrate installation portion are respectively engaged with a first engaged portion and a second engaged portion formed in the movable support portion, the circuit board comes into contact with an electrical connection portion provided in the liquid supply apparatus, and in the removed position, the circuit board is separated from the electrical connection portion.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: November 21, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Taku Ishizawa, Hiroyuki Kawate
  • Publication number: 20170182781
    Abstract: A further improvement in convenience is desired in conventional liquid ejecting systems. A liquid supplying unit is mountable to a carriage that has a first projection, a second projection and a liquid introduction needle. The unit includes six wall portions. The first wall portion is provided with a liquid supplying portion connectable to a liquid introduction needle, a first recess portion adapted to receive the first projection, and a second recess portion adapted to receive the second projection. In a planar view of the first wall portion, the liquid supplying portion is positioned closer to the fifth wall portion than to the sixth wall portion, and when the first wall portion is equally divided into a first region, a second region and a third region, the first recess portion is positioned in the first region, and the second recess portion is positioned in the third region.
    Type: Application
    Filed: December 16, 2016
    Publication date: June 29, 2017
    Inventors: Yoshiaki SHIMIZU, Satoshi SHINADA, Taku ISHIZAWA, Noriyuki FUKASAWA
  • Publication number: 20170151793
    Abstract: A liquid supply unit is provided with a liquid supply part, an outer peripheral wall, contact portions and a positioning portion.
    Type: Application
    Filed: November 23, 2016
    Publication date: June 1, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Shun OYA, Taku ISHIZAWA, Atsushi KOBAYASHI
  • Publication number: 20170151802
    Abstract: A liquid supply unit includes a first wall, a second wall that opposes the first wall, a third wall that intersects the first wall and the second wall, a fourth wall that intersects the second wall and opposes the third wall, a fifth wall that intersects the first wall, the second wall, the third wall, and the fourth wall, a sixth wall that intersects the first wall, the second wall, the third wall, and the fourth wall, and opposes the fifth wall, and a seventh wall that intersects the fifth wall and the sixth wall and is located between the first wall and the fourth wall. The direction from the third wall toward the fourth wall is a direction parallel to a moving direction in which the carriage moves back and forth. The seventh wall inclines relative to the gravity direction toward the third wall side.
    Type: Application
    Filed: November 23, 2016
    Publication date: June 1, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Koichi TOBA, Taku ISHIZAWA, Atsuhi KOBAYASHI, Shun OYA, Takumi NAGASHIMA
  • Publication number: 20170113466
    Abstract: A liquid container for supplying a liquid to a liquid ejection apparatus comprises: a liquid chamber provided to store the liquid; an air chamber connected with the liquid chamber to introduce the outside air into the liquid chamber with consumption of the liquid in the liquid chamber; an open-air hole provided to introduce the outside air into the air chamber; and a liquid inlet provided to fill the liquid into the liquid chamber, wherein the liquid inlet is located at a lower position than the open-air hole, in a filling attitude of the liquid container in which the liquid is filled into the liquid chamber.
    Type: Application
    Filed: November 7, 2016
    Publication date: April 27, 2017
    Inventors: Yoshiaki Shimizu, Taku Ishizawa, Yuki Takeda, Shuichi Koganehira
  • Publication number: 20170100940
    Abstract: A liquid container into which ink is injected comprises a liquid container body configured to contain a liquid therein; and a liquid supply assembly located on one end portion of the liquid container body. The liquid supply assembly has a liquid supply port provided to supply the liquid to a liquid consuming apparatus. The liquid supply port is formed to face in an intersecting direction that intersects with the direction of gravity and to be protruded in the intersecting direction from the one end portion when the liquid supply assembly is supported such as to be located above the liquid container body in the direction of gravity. A liquid injection member is inserted into the liquid supply port, and the liquid is injected into the liquid container body. The liquid supply port is then arranged to be protruded in the intersecting direction, and the liquid injection member is detached from the liquid supply port.
    Type: Application
    Filed: March 11, 2015
    Publication date: April 13, 2017
    Inventors: Taku ISHIZAWA, Hiroyuki KAWATE, Noriaki OKAZAWA
  • Publication number: 20170085031
    Abstract: There is provided a terminal connection assembly. The terminal connection assembly comprises terminals configured to be electrically connectable with an apparatus-side terminal assembly of a printing apparatus; contact regions where the apparatus-side terminal assembly is in contact with the terminals; a substrate on which the terminals are provided; a supporting structure configured to support the substrate; and convexes configured to restrict motion of a positioning structure of the printing apparatus in an intersecting direction that intersects with a mounting direction in which the terminal connection assembly is mounted. In the state that the terminal connection assembly is mounted to the printing apparatus, a plurality of the contact regions are arranged to form a plurality of lines arrayed at predetermined intervals in the mounting direction. A virtual plane passing through the plurality of contact regions is inclined to the mounting direction.
    Type: Application
    Filed: September 13, 2016
    Publication date: March 23, 2017
    Inventors: Taku Ishizawa, Hiroyuki Kawate, Yoshinao Miyata
  • Publication number: 20170072700
    Abstract: Provided is an ink supply set configured to detach from a liquid supply apparatus and includes an ink containing portion, an ink guiding unit including an engaging portion, a flow path unit that guides the ink in the ink containing portion to the ink guiding portion, a circuit board, and a substrate installation portion that is independent from the ink guiding unit. The liquid supply apparatus includes a liquid introduction portion and a movable support portion. In a state in which the engaging portion and the substrate installation portion are respectively engaged with a first engaged portion and a second engaged portion formed in the movable support portion, the circuit board comes into contact with an electrical connection portion provided in the liquid supply apparatus, and in the removed position, the circuit board is separated from the electrical connection portion.
    Type: Application
    Filed: March 13, 2015
    Publication date: March 16, 2017
    Inventors: Taku Ishizawa, Hiroyuki Kawate
  • Publication number: 20170072701
    Abstract: Provided is an ink supply set having an ink containing body detachable from a liquid supply apparatus, and an electrical contact unit that is independent of the ink containing body. The ink containing body includes an ink containing portion, an ink guiding portion, and a first engaging portion, the electrical contact unit includes a circuit board and a substrate installation portion, and the liquid supply apparatus includes a liquid introduction portion and a movable support portion. In a state in which the first engaging portion and the substrate installation portion are respectively engaged with the movable support portion, the movable support portion is displaced to a connected position in which the ink guiding portion and the liquid introduction portion are connected.
    Type: Application
    Filed: March 13, 2015
    Publication date: March 16, 2017
    Inventors: Taku Ishizawa, Hiroyuki Kawate
  • Patent number: 9592675
    Abstract: There is provided a liquid fill container that is used to fill a liquid reservoir supplying a liquid to a liquid ejecting apparatus, with the liquid. The container includes a containing unit that contains the fill liquid; a filling port that is inserted into an inlet of the liquid reservoir, and that allows the liquid contained in the containing unit to flow therethrough to fill the liquid reservoir; and a positioning member that maintains the position of the filling port and the position of the liquid reservoir with respect to each other in the direction in which the filling port is inserted into the liquid reservoir during liquid filling of the liquid reservoir.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: March 14, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Hitoshi Matsumoto, Taku Ishizawa, Mitsuto Yanagisawa, Yaeko Onishi
  • Patent number: 9539820
    Abstract: A tank unit includes two or more liquid accommodating containers disposed in a row. Each of the liquid accommodating containers includes a main body having a concave shape defining a side opening and a film that blocks the side opening. The main body and the film at least partially define a liquid accommodating chamber for accommodating a liquid. The main body includes a facing wall that faces the film across the liquid accommodating chamber and has a wall larger than the side opening. The liquid accommodating containers are disposed such that the film of at least one of the liquid accommodating containers is covered by the facing wall of an adjacent one of the liquid accommodating containers.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: January 10, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Taku Ishizawa, Yoshiaki Shimizu, Masaru Takahashi
  • Patent number: 9505223
    Abstract: A liquid container for supplying a liquid to a liquid ejection apparatus comprises: a liquid chamber provided to store the liquid; an air chamber connected with the liquid chamber to introduce the outside air into the liquid chamber with consumption of the liquid in the liquid chamber; an open-air hole provided to introduce the outside air into the air chamber; and a liquid inlet provided to fill the liquid into the liquid chamber, wherein the liquid inlet is located at a lower position than the open-air hole, in a filling attitude of the liquid container in which the liquid is filled into the liquid chamber.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: November 29, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Yoshiaki Shimizu, Taku Ishizawa, Yuki Takeda, Shuichi Koganehira
  • Patent number: 9365042
    Abstract: A liquid supply device 10 is equipped with a liquid containing chamber 16, a transport tube 15 for sending the liquid inside the chamber 16 to a liquid jetting device 20, first and second members 171 and 172 sandwiching the tube 15, and a cam 173 that determines the position of the first member 171 relative to the second member 172. The tube 15 is equipped with an elastic portion 151 that elastically deforms and is flattened. In the first rotation position, the cam 173 arranges the first member 171 such that there is a space that allows the liquid to flow inside the part 151 between the first and second members 171, 172. In the second rotation position, the cam 173 arranges the first member 171 such that the elastic portion 151 is flattened by the first and second members 171, 172, and the liquid inside cannot flow.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: June 14, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Taku Ishizawa, Yoshiaki Shimizu
  • Patent number: 9358795
    Abstract: A liquid container for supplying a liquid to a liquid ejection apparatus comprises: a liquid chamber provided to store the liquid; an air chamber connected with the liquid chamber to introduce the outside air into the liquid chamber with consumption of the liquid in the liquid chamber; an open-air hole provided to introduce the outside air into the air chamber; and a liquid inlet provided to fill the liquid into the liquid chamber, wherein the liquid inlet is located at a lower position than the open-air hole, in a filling attitude of the liquid container in which the liquid is filled into the liquid chamber.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: June 7, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Yoshiaki Shimizu, Taku Ishizawa, Yuki Takeda, Shuichi Koganehira