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).

  • 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: 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: 20180086088
    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: Application
    Filed: December 1, 2017
    Publication date: March 29, 2018
    Inventors: Takeho Miyashita, Yasuo Kotaki, Tetsuya Ohashi, Hiroki Hayashi, Manabu Ohara
  • Patent number: 9919536
    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: September 21, 2016
    Date of Patent: March 20, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takeho Miyashita, Yasuo Kotaki, Tetsuya Ohashi, Hiroki Hayashi, Manabu Ohara
  • Patent number: 9908338
    Abstract: Provided is a liquid storage bottle capable of suppressing a decrease in degree of internal pressure reduction with a simple configuration. The liquid storage bottle includes: a main body portion configured to store a liquid; a nozzle portion configured to discharge the liquid stored in the main body portion; a cap mounted on the nozzle portion; a space portion formed between the nozzle portion and the cap; and a communicating portion configured to allow the space portion to communicate with outside of the liquid storage bottle. The nozzle portion includes a contact portion which comes into contact with the cap in a state in which the cap is mounted on the nozzle portion, and the communicating portion is a groove portion formed by cutting out a part of the contact portion.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: March 6, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiroshi Koshikawa, Yasuo Kotaki, Kenta Udagawa, Wataru Takahashi, Koichi Kubo, Naozumi Nabeshima, Soji Kondo, Kazuya Yoshii, Kenichi Kanno
  • 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: 9862196
    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: May 9, 2016
    Date of Patent: January 9, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeho Miyashita, Yasuo Kotaki, Tetsuya Ohashi, Hiroki Hayashi, Manabu Ohara
  • 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: 20170120606
    Abstract: Provided is a liquid storage bottle capable of suppressing a decrease in degree of internal pressure reduction with a simple configuration. The liquid storage bottle includes: a main body portion configured to store a liquid; a nozzle portion configured to discharge the liquid stored in the main body portion; a cap mounted on the nozzle portion; a space portion formed between the nozzle portion and the cap; and a communicating portion configured to allow the space portion to communicate with outside of the liquid storage bottle. The nozzle portion includes a contact portion which comes into contact with the cap in a state in which the cap is mounted on the nozzle portion, and the communicating portion is a groove portion formed by cutting out a part of the contact portion.
    Type: Application
    Filed: September 23, 2016
    Publication date: May 4, 2017
    Inventors: Hiroshi Koshikawa, Yasuo Kotaki, Kenta Udagawa, Wataru Takahashi, Koichi Kubo, Naozumi Nabeshima, Soji Kondo, Kazuya Yoshii, Kenichi Kanno
  • Publication number: 20170120612
    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: Application
    Filed: October 14, 2016
    Publication date: May 4, 2017
    Inventors: Hironori Fukuchi, 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