Patents by Inventor Yasuo Kotaki

Yasuo Kotaki 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: 20200238718
    Abstract: An ink cartridge storing ink inside the ink cartridge including an ink flow path extending from the inside where the ink is stored to outside of the ink cartridge, wherein the ink flow path includes a first opening that opens toward the outside, a second opening that opens to an opposite side of the first opening, a first valve configured to seal the first opening, a second valve configured to seal the second opening, and a biasing member connected to the first and second valves and configured to bias the first and second valves.
    Type: Application
    Filed: April 16, 2020
    Publication date: July 30, 2020
    Inventors: Takeho Miyashita, Yasuo Kotaki, Tetsuya Ohashi, Ryoji Inoue, Takashi Fukushima, Hironori Murakami, Kyosuke Nagaoka, Kenichi Kanno
  • Patent number: 10675877
    Abstract: Provided is an ink cartridge having an ink storage portion for storing an ink therein and a plurality of flow paths for supplying the ink to the outside of the ink cartridge. In the ink cartridge, the plurality of flow paths each has a bottom flow path having a bottom opening in a vertically lower direction in the ink storage portion during use of the ink cartridge and a top flow path having a top opening in a vertically upper direction in the ink storage portion than the bottom flow path during use of the ink cartridge; the bottom flow path has a resistance different from that of the top flow path; and air is not introduced into the ink storage portion when the ink is supplied from the bottom flow path and the top flow path.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: June 9, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hironori Murakami, Yasuo Kotaki, Tetsuya Ohashi, Ryoji Inoue, Takashi Fukushima, Kyosuke Nagaoka, Takeho Miyashita, Kenichi Kanno
  • Patent number: 10661570
    Abstract: An ink cartridge storing ink inside the ink cartridge including an ink flow path extending from the inside where the ink is stored to outside of the ink cartridge, wherein the ink flow path includes a first opening that opens toward the outside, a second opening that opens to an opposite side of the first opening, a first valve configured to seal the first opening, a second valve configured to seal the second opening, and a biasing member connected to the first and second valves and configured to bias the first and second valves.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: May 26, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeho Miyashita, Yasuo Kotaki, Tetsuya Ohashi, Ryoji Inoue, Takashi Fukushima, Hironori Murakami, Kyosuke Nagaoka, Kenichi Kanno
  • Publication number: 20200101750
    Abstract: An ink cartridge includes a housing that has an air communication port and stores a liquid inside and a sealing member attached to the housing in such a way as to cover the air communication port. The sealing member includes an adherent region attached to the housing and a non-adherent region not attached to the housing. The non-adherent region extends to an end portion of the sealing member and forms a communication passage which establishes communication between the air communication port and air.
    Type: Application
    Filed: September 17, 2019
    Publication date: April 2, 2020
    Inventors: Kyosuke Nagaoka, Yasuo Kotaki, Tetsuya Ohashi, Ryoji Inoue, Takeho Miyashita, Hironori Murakami, Takayuki Tanno, Takashi Fukushima
  • Publication number: 20190263132
    Abstract: A liquid container is enabled to contain a liquid therein. An outer wall of the liquid container has a first surface, a second and a third surfaces are adjacent to the first surface, and the second surface and the third surface face each other. The first surface has a space in which a storage element storing the information on the liquid container is contained. The first surface and the second surface have a first recessed portion that crosses a boundary between the first surface and the second surface, and the first surface and the third surface have a second recessed portion that crosses a boundary between the first surface and the third surface. The first recessed portion and the second recessed portion face each other across the space.
    Type: Application
    Filed: May 14, 2019
    Publication date: August 29, 2019
    Inventors: Takeho Miyashita, Yasuo Kotaki, Tetsuya Ohashi, Hiroki Hayashi, Manabu Ohara
  • Publication number: 20190224978
    Abstract: An ink cartridge storing ink inside the ink cartridge including an ink flow path extending from the inside where the ink is stored to outside of the ink cartridge, wherein the ink flow path includes a first opening that opens toward the outside, a second opening that opens to an opposite side of the first opening, a first valve configured to seal the first opening, a second valve configured to seal the second opening, and a biasing member connected to the first and second valves and configured to bias the first and second valves.
    Type: Application
    Filed: January 11, 2019
    Publication date: July 25, 2019
    Inventors: Takeho Miyashita, Yasuo Kotaki, Tetsuya Ohashi, Ryoji Inoue, Takashi Fukushima, Hironori Murakami, Kyosuke Nagaoka, Kenichi Kanno
  • Publication number: 20190224904
    Abstract: A blown bottle includes at least two layers including an inner layer and an outer layer, wherein the inner layer includes an inner layer flange, the outer layer includes an outer layer flange, and wherein a protrusion is formed on either one of the inner layer flange or the outer layer flange, a recess is formed in the other, and the protrusion is fitted to the recess.
    Type: Application
    Filed: January 22, 2019
    Publication date: July 25, 2019
    Inventors: Takashi Fukushima, Tetsuya Ohashi, Ryoji Inoue, Hironori Murakami, Takeho Miyashita, Kyosuke Nagaoka, Yasuo Kotaki, Kenichi Kanno
  • Publication number: 20190225361
    Abstract: A blow bottle includes an outer layer and an inner layer, wherein the inner layer has blackness higher than that of the outer layer, and wherein the outer layer has an L* value of 20 or more and 90 or less in an International Commission on Illumination (CIE) L*a*b* color system.
    Type: Application
    Filed: January 17, 2019
    Publication date: July 25, 2019
    Inventors: Kyosuke Nagaoka, Tetsuya Ohashi, Ryoji Inoue, Takashi Fukushima, Hironori Murakami, Takeho Miyashita, Yasuo Kotaki, Hitoshi Takada, Kenichi Kanno
  • Publication number: 20190224979
    Abstract: Provided is an ink cartridge having an ink storage portion for storing an ink therein and a plurality of flow paths for supplying the ink to the outside of the ink cartridge. In the ink cartridge, the plurality of flow paths each has a bottom flow path having a bottom opening in a vertically lower direction in the ink storage portion during use of the ink cartridge and a top flow path having a top opening in a vertically upper direction in the ink storage portion than the bottom flow path during use of the ink cartridge; the bottom flow path has a resistance different from that of the top flow path; and air is not introduced into the ink storage portion when the ink is supplied from the bottom flow path and the top flow path.
    Type: Application
    Filed: January 17, 2019
    Publication date: July 25, 2019
    Inventors: Hironori Murakami, Yasuo Kotaki, Tetsuya Ohashi, Ryoji Inoue, Takashi Fukushima, Kyosuke Nagaoka, Takeho Miyashita, Kenichi Kanno
  • Patent number: 10336087
    Abstract: A liquid container is enabled to contain a liquid therein. An outer wall of the liquid container has a first surface, a second and a third surfaces are adjacent to the first surface, and the second surface and the third surface face each other. The first surface has a space in which a storage element storing the information on the liquid container is contained. The first surface and the second surface have a first recessed portion that crosses a boundary between the first surface and the second surface, and the first surface and the third surface have a second recessed portion that crosses a boundary between the first surface and the third surface. The first recessed portion and the second recessed portion face each other across the space.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: July 2, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeho Miyashita, Yasuo Kotaki, Tetsuya Ohashi, Hiroki Hayashi, Manabu Ohara
  • 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: 10029474
    Abstract: A liquid storage unit including a first liquid storage chamber having a constant volume and being capable of holding liquid supplied from a liquid tank; a second liquid storage chamber communicating with the first liquid storage chamber; a pressure control chamber configured to change a pressure of the pressure control chamber through actuation of a pressure control unit; and an elastic member being configured to tightly partition the second liquid storage chamber and the pressure control chamber from each other and being deformable so as to increase and decrease a volume of the second liquid storage chamber in accordance with the pressure of the pressure control chamber. The elastic member is capable of removing bubbles in the first liquid storage chamber by increasing and decreasing the volume of the second liquid storage chamber through the deformation.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: July 24, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hitoshi Takada, Yasuo Kotaki, Tetsuya Ohashi, Ryoji Inoue, Takatoshi Kitagawa, Hironori Murakami, Takeho Miyashita, Hiroki Hayashi, Hironori Fukuchi, Norihiro Ikebe, Takashi Fukushima
  • Patent number: 9994031
    Abstract: A liquid container mounted on a recording apparatus and containing a liquid in a liquid containing portion, including a first surface which faces the recording apparatus when the liquid container is mounted on the recording apparatus, and a second surface opposite to the first surface, wherein the liquid containing portion has, on a bottom surface which is a lower surface in a gravity direction when the liquid container is mounted on the recording apparatus, a first inclined surface inclining downward in the gravity direction from the first surface side to the second surface side and a second inclined surface inclining upward in the gravity direction from the first surface side to the second surface side in this order from the first surface side.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: June 12, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeho Miyashita, Yasuo Kotaki, Tetsuya Ohashi, Hiroki Hayashi, Manabu Ohara
  • Publication number: 20180154646
    Abstract: A liquid container is enabled to contain a liquid therein. An outer wall of the liquid container has a first surface, a second and a third surfaces are adjacent to the first surface, and the second surface and the third surface face each other. The first surface has a space in which a storage element storing the information on the liquid container is contained. The first surface and the second surface have a first recessed portion that crosses a boundary between the first surface and the second surface, and the first surface and the third surface have a second recessed portion that crosses a boundary between the first surface and the third surface. The first recessed portion and the second recessed portion face each other across the space.
    Type: Application
    Filed: February 2, 2018
    Publication date: June 7, 2018
    Inventors: Takeho Miyashita, Yasuo Kotaki, Tetsuya Ohashi, Hiroki Hayashi, Manabu Ohara
  • 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: 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: 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: 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