Patents by Inventor Tatsuo Nanjo

Tatsuo Nanjo 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: 20200298575
    Abstract: A sealing member is applied to the surface of a liquid storage container having a liquid supply port provided so as to be open to a concave space formed on the surface with a gap between the applied sealing member and the liquid supply ports so as to seal the concave space. The liquid supply port has a profile adapted to be inserted into and connected to a connecting portion for supplying liquid to the liquid supply port. A cut score section is formed on the sealing member as including a center point located at the position on the extension from the front end of the liquid supply port in the direction of connecting the liquid supply port to the connecting portion and the cut score section is torn as it is pressed by the connecting portion moving toward the liquid supply port.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 24, 2020
    Inventors: Keisuke Iinuma, Tatsuo Nanjo, Wataru Takahashi, Kenta Udagawa
  • Publication number: 20200247130
    Abstract: An inkjet printer includes an inkjet head configured to discharge ink and an ink tank including a plurality of ink storage portions in which the ink is stored to supply the ink to the inkjet head via a connected tube, and replenishing ports via which the plurality of ink storage portions is replenished with ink, wherein the ink tank has an outer wall facing an outer side of the ink tank and having a thickness greater than a thickness of a partition wall arranged between the plurality of ink storage portions.
    Type: Application
    Filed: January 24, 2020
    Publication date: August 6, 2020
    Inventors: Masatomo Ojima, Hirofumi Okuhara, Tatsuo Nanjo, Chiaki Muraoka
  • Publication number: 20200079096
    Abstract: Provided is a technique that enables openings for injecting liquid to be sealed with a simple and low-cost configuration. A liquid reservoir container includes: a reservoir portion configured to contain liquid in an inside of the reservoir portion and having multiple openings communicating with the inside; a supply portion connected to at least one of the openings and configured to supply liquid to the reservoir portion from a tank reserving the liquid via a flow path; and a sheet member. The liquid reservoir container supplies liquid reserved in the reservoir portion to an ejecting portion configured to eject liquid, and the sheet member is attached to the reservoir portion so as to seal an opening to which the supply portion is not connected of the multiple openings.
    Type: Application
    Filed: August 9, 2019
    Publication date: March 12, 2020
    Inventors: Keisuke Iinuma, Kenta Udagawa, Tatsuo Nanjo, Hiroshi Koshikawa
  • Publication number: 20200079094
    Abstract: Provided is a liquid ejecting apparatus comprising: a cartridge capable of ejecting a liquid stored therein; a flow channel through which the cartridge and a liquid tank capable of supplying the liquid to the cartridge are in fluid communication with each other; a closing unit capable of closing the flow channel; and a movable member configured to be operated before the cartridge and the flow channel are uncoupled. The closing unit comprises a closing member, and closes the flow channel with the closing member moved with movement of the movable member. The liquid ejecting apparatus further comprises a carriage capable of carrying the cartridge and moving during liquid ejection of the cartridge. The movable member is a covering member provided to the carriage and configured to cover the cartridge, and in replacement of the cartridge, the movable member is removed from covering the cartridge to allow access to the cartridge.
    Type: Application
    Filed: September 4, 2019
    Publication date: March 12, 2020
    Inventors: Tatsuo Nanjo, Kenta Udagawa, Hiroshi Koshikawa, Keisuke Iinuma
  • Patent number: 10207511
    Abstract: There is provided an ink cartridge capable of accomplishing satisfactory electrical connection relative to a printer main assembly. An ink cartridge detachably mountable to a cartridge mounting portion provided with an ink receiving tube and a plurality of electrical connecting portions, the ink cartridge including a tube inserting portion into which the receiving tube is insertable, a substrate provided on a front side in a position above the tube inserting portion, a plurality of electrical contacts electrically connectable with the plurality of electrical connecting portions, the electrical contacts being arranged on the substrate in a direction crossing with a direction from a bottom surface toward an upper surface.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: February 19, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tatsuo Nanjo, Yasuo Kotaki, Kenta Udagawa, Hiroshi Koshikawa, Wataru Takahashi, Koichi Kubo, Shigeki Fukui, Naozumi Nabeshima, Soji Kondo, Masafumi Seki, Kazuya Yoshii, Satoshi Kimura, Kyosuke Toda
  • Patent number: 10118396
    Abstract: The printing apparatus of the present invention includes: a print head; and a liquid storage container in which a liquid storage chamber that stores a liquid to be supplied to the print head, an atmosphere communication chamber that communicates with the atmosphere, and a communication flow path that causes the liquid storage chamber and the atmosphere communication chamber to communicate are formed integrally. The liquid storage container can take a first posture in which the atmosphere communication chamber is located under the liquid storage chamber in the direction of gravity and a second posture in which the atmosphere communication chamber and the liquid storage chamber are located side by side in the horizontal direction. In the case where the liquid storage container is in the second posture, the liquid injection portion and the communication flow path are located on the upper side of the liquid storage container.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: November 6, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yukimichi Kimura, Takahiro Kiuchi, Junichi Kubokawa, Kyohei Sato, Koki Shimada, Masaya Shimmachi, Yusuke Tanaka, Hideaki Matsumura, Keiichiro Tsukuda, Tatsuo Nanjo
  • Patent number: 9981477
    Abstract: There are provided a liquid ejecting device that can efficiently supply liquid inside a liquid containing unit with a simple structure and the liquid containing unit. The present invention is the liquid ejecting device which includes a liquid container, a head that is provided on a carriage and has a liquid containing unit capable of storing liquid thereinside and a liquid ejecting unit, and a flexible member that connects the liquid container to the liquid containing unit and supplies the liquid stored inside the liquid container to the liquid containing unit. A holding member is arranged inside the liquid containing unit to hold the liquid, and the shortest distance between a supply port opened to an inside of the liquid containing unit and the holding member is 0.1 mm or more and 5.0 mm or less.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: May 29, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hironori Fukuchi, Keisuke Iinuma, Tatsuo Nanjo, Keiichiro Tsukuda, Yasuo Kotaki
  • Patent number: 9981478
    Abstract: A downsized liquid ejecting device is provided. To do so, the liquid ejecting device includes a liquid container, a head provided on a carriage and having a liquid containing unit capable of storing liquid thereinside, and a liquid ejecting unit ejecting liquid, and a flexible member that connects between the liquid container and the liquid containing unit and supplies the liquid stored inside the liquid container to the liquid containing unit, and a concave portion is formed on an outer wall surface of the liquid containing unit, and a projected portion that is inserted to the flexible member is formed inside the concave portion.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: May 29, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Norihiro Ikebe, Yasuo Kotaki, Keiichiro Tsukuda, Tatsuo Nanjo, Keisuke Iinuma
  • Patent number: 9962945
    Abstract: There are provided a liquid ejecting device stably containing liquid inside a liquid containing unit, a head, and a liquid filling method. The liquid ejecting device includes a liquid container that can store liquid thereinside, a head including a liquid containing unit that has a holding member capable of holding liquid thereinside and a liquid ejecting unit that ejects liquid, and a flexible member that connects the liquid container to the liquid containing unit and supplies the liquid stored inside the liquid container to the liquid containing unit, and an internal space of the liquid containing unit has a rectangular parallelepiped shape, and a value obtained by dividing a length of a long side of a cross-section along a horizontal surface in the internal space by a length of the holding member along a gravity direction is 1.5 or more in a posture having the head provided on the carriage.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: May 8, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tsubasa Takaoka, Keisuke Iinuma, Tatsuo Nanjo, Keiichiro Tsukuda, Yasuo Kotaki
  • Patent number: 9931855
    Abstract: A liquid storage container for storing a liquid has a label member attached to a surface thereof. A bonding face of the label member that is bonded to the surface includes a first area and a second area having a low bonding strength. The second area covers a liquid supply port. A score line is formed on the label member, and the score line extends along a boundary between the first area and the second area and is formed in the second area.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: April 3, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigeki Fukui, Masanori Kaneko, Keiichiro Tsukuda, Yasuo Kotaki, Tatsuo Nanjo, Masafumi Seki
  • Publication number: 20180015728
    Abstract: To provide an ink cartridge capable of accomplishing satisfactory electrical connection relative to a printer main assembly An ink cartridge 1 detachably mountable to a cartridge mounting portion 33 provided with an ink receiving tube 52 and a plurality of electrical connecting portions 55, the ink cartridge 1 including a tube inserting portion 8 into which the receiving tube 52 is insertable, a substrate 3 provided on a front side 2c in a position above the tube inserting portion 8, a plurality of electrical contacts 4 electrically connectable with the plurality of electrical connecting portions 55, the electrical contacts 4 being arranged on the substrate 3 in a direction crossing with a direction from a bottom surface 2b toward an upper surface 2a
    Type: Application
    Filed: September 21, 2017
    Publication date: January 18, 2018
    Inventors: Tatsuo Nanjo, Yasuo Kotaki, Kenta Udagawa, Hiroshi Koshikawa, Wataru Takahashi, Koichi Kubo, Shigeki Fukui, Naozumi Nabeshima, Soji Kondo, Masafumi Seki, Kazuya Yoshii, Satoshi Kimura, Kyosuke Toda
  • Patent number: 9840082
    Abstract: To provide an ink cartridge capable of accomplishing satisfactory electrical connection relative to a printer main assembly.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: December 12, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tatsuo Nanjo, Yasuo Kotaki, Kenta Udagawa, Hiroshi Koshikawa, Wataru Takahashi, Koichi Kubo, Shigeki Fukui, Naozumi Nabeshima, Soji Kondo, Masafumi Seki, Kazuya Yoshii, Satoshi Kimura, Kyosuke Toda
  • Patent number: 9821562
    Abstract: To provide an ink cartridge in which a satisfactory electrical connection with a printer main assembly can be established An ink cartridge 1 detachably mountable to a cartridge mounting portion 33 including an ink receiving tube 52, an electrical connecting portion 55 and a locking lever 58, the ink cartridge 1 includes a tube inserting portion 8 into which an ink receiving tube 52 is inserted and which is provided in a lower portion at a front surface 2c of a casing 2, an electrical contact 4 provided above the tube inserting portion 8 and electrically connectable with the electrical connecting portion 55, and an engaging portion 24 provided in a position closer to the electrical contact than to the tube inserting portion 8 and engageable with the locking lever 58.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: November 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tatsuo Nanjo, Yasuo Kotaki, Kenta Udagawa, Hiroshi Koshikawa, Wataru Takahashi, Koichi Kubo, Shigeki Fukui, Naozumi Nabeshima, Soji Kondo, Masafumi Seki, Kazuya Yoshii, Satoshi Kimura, Kyosuke Toda
  • Publication number: 20170305163
    Abstract: The printing apparatus of the present invention includes: a print head; and a liquid storage container in which a liquid storage chamber that stores a liquid to be supplied to the print head, an atmosphere communication chamber that communicates with the atmosphere, and a communication flow path that causes the liquid storage chamber and the atmosphere communication chamber to communicate are formed integrally. The liquid storage container can take a first posture in which the atmosphere communication chamber is located under the liquid storage chamber in the direction of gravity and a second posture in which the atmosphere communication chamber and the liquid storage chamber are located side by side in the horizontal direction. In the case where the liquid storage container is in the second posture, the liquid injection portion and the communication flow path are located on the upper side of the liquid storage container.
    Type: Application
    Filed: July 6, 2017
    Publication date: October 26, 2017
    Inventors: Yukimichi Kimura, Takahiro Kiuchi, Junichi Kubokawa, Kyohei Sato, Koki Shimada, Masaya Shimmachi, Yusuke Tanaka, Hideaki Matsumura, Keiichiro Tsukuda, Tatsuo Nanjo
  • Patent number: 9738081
    Abstract: The printing apparatus of the present invention includes: a print head; and a liquid storage container in which a liquid storage chamber that stores a liquid to be supplied to the print head, an atmosphere communication chamber that communicates with the atmosphere, and a communication flow path that causes the liquid storage chamber and the atmosphere communication chamber to communicate are formed integrally. The liquid storage container can take a first posture in which the atmosphere communication chamber is located under the liquid storage chamber in the direction of gravity and a second posture in which the atmosphere communication chamber and the liquid storage chamber are located side by side in the horizontal direction. In the case where the liquid storage container is in the second posture, the liquid injection portion and the communication flow path are located on the upper side of the liquid storage container.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: August 22, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yukimichi Kimura, Takahiro Kiuchi, Junichi Kubokawa, Kyohei Sato, Koki Shimada, Masaya Shimmachi, Yusuke Tanaka, Hideaki Matsumura, Keiichiro Tsukuda, Tatsuo Nanjo
  • Publication number: 20170120608
    Abstract: There are provided a liquid ejecting device stably containing liquid inside a liquid containing unit, a head, and a liquid filling method. The liquid ejecting device includes a liquid container that can store liquid thereinside, a head including a liquid containing unit that has a holding member capable of holding liquid thereinside and a liquid ejecting unit that ejects liquid, and a flexible member that connects the liquid container to the liquid containing unit and supplies the liquid stored inside the liquid container to the liquid containing unit, and an internal space of the liquid containing unit has a rectangular parallelepiped shape, and a value obtained by dividing a length of a long side of a cross-section along a horizontal surface in the internal space by a length of the holding member along a gravity direction is 1.5 or more in a posture having the head provided on the carriage.
    Type: Application
    Filed: October 7, 2016
    Publication date: May 4, 2017
    Inventors: Tsubasa Takaoka, Keisuke Iinuma, Tatsuo Nanjo, Keiichiro Tsukuda, Yasuo Kotaki
  • Patent number: D794708
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: August 15, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keisuke Iinuma, Tatsuo Nanjo, Keiichiro Tsukuda, Yasuo Kotaki
  • Patent number: D816158
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: April 24, 2018
    Inventors: Kazuya Yoshii, Yasuo Kotaki, Kenta Udagawa, Hiroshi Koshikawa, Wataru Takahashi, Koichi Kubo, Shigeki Fukui, Naozumi Nabeshima, Soji Kondo, Tatsuo Nanjo, Norihiro Ikebe, Kenichi Kanno, Keiichiro Tsukuda, Hiroki Nakanishi
  • Patent number: D831739
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: October 23, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keisuke Iinuma, Tatsuo Nanjo, Keiichiro Tsukuda, Yasuo Kotaki
  • Patent number: D869550
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: December 10, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuya Yoshii, Yasuo Kotaki, Kenta Udagawa, Hiroshi Koshikawa, Wataru Takahashi, Koichi Kubo, Shigeki Fukui, Naozumi Nabeshima, Soji Kondo, Tatsuo Nanjo, Norihiro Ikebe, Kenichi Kanno, Keiichiro Tsukuda, Hiroki Nakanishi