Patents by Inventor Yoshimasa Araki

Yoshimasa Araki 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: 11752686
    Abstract: An imprint apparatus includes: a movable housing unit; an ejection head provided in the housing unit and configured to eject an ejection material; a flexible member provided in the housing unit and separating the housing unit into a first storing space communicating with the ejection head and storing the ejection material and a second storing space storing hydraulic liquid; a first channel and a second channel communicating with the second storing space; a pressure control unit configured to control a pressure in the second storing space through the channels; and a bubble detection unit configured to detect bubbles in the channels.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: September 12, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hisashi Namba, Noriyasu Hasegawa, Yoshimasa Araki, Keita Sakai
  • Patent number: 11745409
    Abstract: A storage device stores an ejection cartridge including an accommodating container that accommodates an ejection material, and an ejection head that includes an ejection port for ejecting the ejection material accommodated in the accommodating container. The storage device includes a mount on which the ejection cartridge is mounted, and includes a pressure regulating tank configured to control a pressure of an inside of the accommodating container of the ejection cartridge fixed to the mount with its ejection port not enclosed.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: September 5, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Nobuto Kawahara, Yoshimasa Araki, Yutaka Mita, Noriyasu Hasegawa, Yuichi Iwasaki
  • Patent number: 11535039
    Abstract: An ejection-material ejection apparatus and an imprinting apparatus are provided which are capable of quickly detecting damage of a flexible membrane and avoiding contact between an ejection material and an operating liquid even if part of the flexible membrane is damaged. The flexible membrane includes a first film (1) covering a first storing space (5) for the ejection material, a second film (2) covering a second storing space (6) for the operating liquid, and an inter-film space 4 situated between the first film (1) and the second film (2). A change in state of the inter-film space (4) resulting from communication between at least one of the first storing space (5) and the second storing space (6) and the inter-film space (4) is detected with a liquid sensor (41), a flow speed sensor (77), and a liquid leakage sensor (42).
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: December 27, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Nobuto Kawahara, Yoshimasa Araki, Yuichi Iwasaki, Noriyasu Hasegawa
  • Patent number: 11520227
    Abstract: An ejection material filling device fills an ejection material into a first storage space of an ejection material ejecting device including an ejection head configured to eject the ejection material and a storage container having an internal space separated by flexible membrane into the first storage space storing the ejection material and a second storage space storing a hydraulic fluid. The ejection material filling device includes an ejection material server bottle storing the ejection material to be filled into the first storage space, pipes configured to form a circulation path including the ejection material server bottle and the first storage space, a pump configured to circulate the ejection material through the circulation path, and a particle filter provided in the circulation path.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: December 6, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuichi Iwasaki, Yoshimasa Araki, Noriyasu Hasegawa, Hideki Matsumoto
  • Patent number: 11465350
    Abstract: An ejection device includes: an ejection unit provided with an ejection port configured to eject an ejection material; a piezoelectric element configured to cause the ejection material to be ejected from the ejection unit; a first liquid chamber connected to the ejection unit and configured to supply the ejection unit with the ejection material; a pressure control unit configured to control a pressure in the ejection unit by controlling a pressure in the first liquid chamber; and a detection unit configured to detect a wetness of an ejection port side surface.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: October 11, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Akiko Iimura, Noriyasu Hasegawa, Yoshimasa Araki
  • Publication number: 20210362507
    Abstract: An ejection-material ejection apparatus and an imprinting apparatus are provided which are capable of quickly detecting damage of a flexible membrane and avoiding contact between an ejection material and an operating liquid even if part of the flexible membrane is damaged. The flexible membrane includes a first film (1) covering a first storing space (5) for the ejection material, a second film (2) covering a second storing space (6) for the operating liquid, and an inter-film space 4 situated between the first film (1) and the second film (2). A change in state of the inter-film space (4) resulting from communication between at least one of the first storing space (5) and the second storing space (6) and the inter-film space (4) is detected with a liquid sensor (41), a flow speed sensor (77), and a liquid leakage sensor (42).
    Type: Application
    Filed: November 28, 2018
    Publication date: November 25, 2021
    Inventors: Nobuto Kawahara, Yoshimasa Araki, Yuichi Iwasaki, Noriyasu Hasegawa
  • Publication number: 20210069960
    Abstract: An imprint apparatus includes: a movable housing unit; an ejection head provided in the housing unit and configured to eject an ejection material; a flexible member provided in the housing unit and separating the housing unit into a first storing space communicating with the ejection head and storing the ejection material and a second storing space storing hydraulic liquid; a first channel and a second channel communicating with the second storing space; a pressure control unit configured to control a pressure in the second storing space through the channels; and a bubble detection unit configured to detect bubbles in the channels.
    Type: Application
    Filed: September 4, 2020
    Publication date: March 11, 2021
    Inventors: Hisashi Namba, Noriyasu Hasegawa, Yoshimasa Araki, Keita Sakai
  • Publication number: 20210069977
    Abstract: An ejection device includes: an ejection unit provided with an ejection port configured to eject an ejection material; a piezoelectric element configured to cause the ejection material to be ejected from the ejection unit; a first liquid chamber connected to the ejection unit and configured to supply the ejection unit with the ejection material; a pressure control unit configured to control a pressure in the ejection unit by controlling a pressure in the first liquid chamber; and a detection unit configured to detect a wetness of an ejection port side surface.
    Type: Application
    Filed: September 4, 2020
    Publication date: March 11, 2021
    Inventors: Akiko Iimura, Noriyasu Hasegawa, Yoshimasa Araki
  • Patent number: 10850302
    Abstract: A liquid ejection device includes a storage section storing a nanoimprinting liquid and also includes an ejection port which communicates with the storage section and which ejects the nanoimprinting liquid. The storage section contains a sorption medium that adsorbs or absorbs at least one selected from the group consisting of particles, metal ions, and water. The sorption tedium is not ejected from the ejection port when the nanoimprinting liquid is ejected from the ejection port.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: December 1, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Toshiki Ito, Yoshimasa Araki, Kazumi Iwashita
  • Publication number: 20200341371
    Abstract: An ejection material filling device fills an ejection material into a first storage space of an ejection material ejecting device including an ejection head configured to eject the ejection material and a storage container having an internal space separated by flexible membrane into the first storage space storing the ejection material and a second storage space storing a hydraulic fluid. The ejection material filling device includes an ejection material server bottle storing the ejection material to be filled into the first storage space, pipes configured to form a circulation path including the ejection material server bottle and the first storage space, a pump configured to circulate the ejection material through the circulation path, and a particle filter provided in the circulation path.
    Type: Application
    Filed: April 22, 2020
    Publication date: October 29, 2020
    Inventors: Yuichi Iwasaki, Yoshimasa Araki, Noriyasu Hasegawa, Hideki Matsumoto
  • Publication number: 20200338806
    Abstract: A storage device stores an ejection cartridge including an accommodating container that accommodates an ejection material, and an ejection head that includes an ejection port for ejecting the ejection material accommodated in the accommodating container. The storage device includes a mount on which the ejection cartridge is mounted, and includes a pressure regulating tank configured to control a pressure of an inside of the accommodating container of the ejection cartridge fixed to the mount with its ejection port not enclosed.
    Type: Application
    Filed: April 2, 2020
    Publication date: October 29, 2020
    Inventors: Nobuto Kawahara, Yoshimasa Araki, Yutaka Mita, Noriyasu Hasegawa, Yuichi Iwasaki
  • Patent number: 10518546
    Abstract: A liquid discharge apparatus comprises a head including a discharge port surface, a first reservoir that stores the liquid to be supplied to the head, a flexible member, separating an inner space of the first reservoir into a first chamber that stores the liquid and a second chamber that stores an operation liquid, a second reservoir communicating with the second chamber, the second reservoir storing the operation liquid to be supplied to the second chamber, the second reservoir being disposed in such a manner that a liquid surface of the operation liquid stored in the second reservoir is positioned below the discharge port surface, and an adjustment unit that performs adjustment in such a manner that a position of the liquid surface of the operation liquid in the second reservoir falls within a predetermined range in a state where the second reservoir is opened to atmosphere.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: December 31, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshimasa Araki, Yuichi Takahashi, Tsuyoshi Arai, Yutaka Mita, Tohru Ishibashi
  • Patent number: 10513125
    Abstract: A fluid containing member includes a first containing chamber that contains a first fluid, and a second containing chamber that contains a second fluid. The first containing chamber and the second containing chamber are separated from each other by a first separation film on a side of the first containing chamber and a second separation film on a side of the second containing chamber. The first separation film and the second separation film are partly connected to each other or partly contact each other so as to move together in accordance with a change in an internal pressure of the first containing chamber or an internal pressure of the second containing chamber.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: December 24, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Nobuto Kawahara, Yutaka Mita, Yoshimasa Araki, Noriyasu Hasegawa
  • Patent number: 10421283
    Abstract: There is provided an ejection material receiving unit capable of increasing the filling amount of ejection material with as little enlargement of the container itself as possible and an ejection material ejecting apparatus including the unit. Therefore, an ejection material receiving unit includes: a first receiving space capable of receiving ejection material; a second receiving space capable of receiving liquid; and a flexible member separating the first receiving space and the second receiving space, and is characterized in that the flexible member has a concave part which takes a concave shape in a state where the first receiving space is not filled with the ejection material and the second receiving space is not filled with the liquid, and the concave shape is a shape dented toward the second receiving space from the first receiving space, and is also a shape conforming to a wall forming the second receiving space.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: September 24, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yoshimasa Araki, Yutaka Mita, Masahiro Kuri, Noriyasu Hasegawa, Tsuyoshi Arai
  • Patent number: 10384451
    Abstract: Provided is a liquid discharge apparatus, including: a head having an discharge port surface in which an discharge port array is provided, the discharge port array including a plurality of discharge ports which discharges liquid and is arranged along a first direction; a suction port performing a suction operation for the discharge port surface; and a control unit causing the suction port to move in a second direction intersecting the first direction under a state in which the suction port is spaced away from the discharge port surface.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: August 20, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tohru Ishibashi, Yuichi Takahashi, Yoshimasa Araki, Yutaka Mita, Tsuyoshi Arai
  • Patent number: 10245835
    Abstract: Provided is a liquid discharging apparatus, including: a head having a discharging port surface on which discharging ports are formed, and configured to perform a discharging operation for discharging liquid through the discharging ports; a suction port configured to perform a suction operation for the discharging port surface; a pressure changing unit configured to change a pressure in the head; and a control unit configured to perform the suction operation under a state in which the pressure changing unit has changed the pressure in the head in a positive pressure direction with respect to a pressure that is set during the discharging operation and the suction port is spaced away from the discharging port surface.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: April 2, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kensuke Tone, Tohru Ishibashi, Yoshimasa Araki, Tsuyoshi Arai, Yutaka Mita, Yuichi Takahashi
  • Publication number: 20190070857
    Abstract: There is provided an ejection material receiving unit capable of increasing the filling amount of ejection material with as little enlargement of the container itself as possible and an ejection material ejecting apparatus including the unit. Therefore, an ejection material receiving unit includes: a first receiving space capable of receiving ejection material; a second receiving space capable of receiving liquid; and a flexible member separating the first receiving space and the second receiving space, and is characterized in that the flexible member has a concave part which takes a concave shape in a state where the first receiving space is not filled with the ejection material and the second receiving space is not filled with the liquid, and the concave shape is a shape dented toward the second receiving space from the first receiving space, and is also a shape conforming to a wall forming the second receiving space.
    Type: Application
    Filed: August 30, 2018
    Publication date: March 7, 2019
    Inventors: Yoshimasa Araki, Yutaka Mita, Masahiro Kuri, Noriyasu Hasegawa, Tsuyoshi Arai
  • Publication number: 20190016145
    Abstract: A fluid containing member includes a first containing chamber that contains a first fluid, and a second containing chamber that contains a second fluid. The first containing chamber and the second containing chamber are separated from each other by a first separation film on a side of the first containing chamber and a second separation film on a side of the second containing chamber. The first separation film and the second separation film are partly connected to each other or partly contact each other so as to move together in accordance with a change in an internal pressure of the first containing chamber or an internal pressure of the second containing chamber.
    Type: Application
    Filed: July 12, 2018
    Publication date: January 17, 2019
    Inventors: Nobuto Kawahara, Yutaka Mita, Yoshimasa Araki, Noriyasu Hasegawa
  • Patent number: 10093103
    Abstract: A liquid discharge apparatus includes: a container divided into a first chamber and a second chamber by a dividing member, the first chamber including a discharge outlet that discharges a liquid and configured to contain the liquid, the second chamber configured to contain a fluid; a tank configured to store the fluid; a connecting portion that provides fluid communication between the tank and the second chamber; a measurement unit configured to measure an amount of the fluid supplied from the tank to the second chamber; and a controller configured to obtain an amount of the liquid contained in the first chamber based on a measurement result from the measurement unit.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: October 9, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yoshimasa Araki, Koichi Kitakami, Tsuyoshi Arai, Yutaka Mita
  • Publication number: 20180079215
    Abstract: Provided is a liquid discharge apparatus, including: a head having an discharge port surface in which an discharge port array is provided, the discharge port array including a plurality of discharge ports which discharges liquid and is arranged along a first direction; a suction port performing a suction operation for the discharge port surface; and a control unit causing the suction port to move in a second direction intersecting the first direction under a state in which the suction port is spaced away from the discharge port surface.
    Type: Application
    Filed: May 9, 2016
    Publication date: March 22, 2018
    Inventors: Tohru Ishibashi, Yuichi Takahashi, Yoshimasa Araki, Yutaka Mita, Tsuyoshi Arai