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).

  • Publication number: 20180079214
    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: Application
    Filed: May 9, 2016
    Publication date: March 22, 2018
    Inventors: Kensuke Tone, Tohru Ishibashi, Yoshimasa Araki, Tsuyoshi Arai, Yutaka Mita, Yuichi Takahashi
  • Publication number: 20180001652
    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: Application
    Filed: September 18, 2017
    Publication date: January 4, 2018
    Inventors: Yoshimasa Araki, Yuichi Takahashi, Tsuyoshi Arai, Yutaka Mita, Tohru Ishibashi
  • Patent number: 9834002
    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: March 23, 2016
    Date of Patent: December 5, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yoshimasa Araki, Yuichi Takahashi, Tsuyoshi Arai, Yutaka Mita, Tohru Ishibashi
  • Publication number: 20170326583
    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: Application
    Filed: October 5, 2015
    Publication date: November 16, 2017
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toshiki Ito, Yoshimasa Araki, Kazumi Iwashita
  • Patent number: 9493004
    Abstract: A liquid discharge apparatus comprises a head having a discharge port surface on which a discharge port is provided for discharging a liquid, and a liquid moving unit arranged apart from the discharge port surface and configured to be movable along the discharge port surface, wherein, the liquid moving unit moves a liquid on the discharge port surface to a collection position in which the discharge port is not provided, with a moving of the liquid moving unit.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: November 15, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tohru Ishibashi, Yoshimasa Araki, Akio Saito, Koichi Kitakami, Yasuyuki Tamura
  • Patent number: 9475303
    Abstract: There is provided a liquid ejection device including a head for ejecting a liquid, a liquid containing unit, a liquid filler, and a pressure adjusting unit, in which the liquid containing unit includes a sealed housing and a flexible member provided in the housing, the housing includes a first containing space communicating with the head and a second containing space partitioned from the first containing space through use of the flexible member, the first containing space contains the liquid, and the liquid filler is filled into the second containing space, the pressure adjusting unit communicates with the second containing space, and adjusts the pressure of the liquid filler filled into the second containing space so as to maintain a negative pressure with respect to the head.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: October 25, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshimasa Araki, Yasuyuki Tamura, Akio Saito, Makoto Fukuhara, Hiroyuki Ozaki
  • Publication number: 20160288521
    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: Application
    Filed: March 23, 2016
    Publication date: October 6, 2016
    Inventors: Yoshimasa Araki, Yuichi Takahashi, Tsuyoshi Arai, Yutaka Mita, Tohru Ishibashi
  • Publication number: 20160288378
    Abstract: An imprint material discharging device includes a container member that includes a container section that contains an imprint material, a channel that is connected to the container section, and a discharging member that includes a discharge port and an energy generating element. The channel has a first opening and a second opening, the first opening supplying the imprint material into the channel, the second opening supplying the imprint material supplied from the first opening to the container section. A filter that filters the imprint material is disposed between the first opening and the second opening of the channel, and the imprint material supplied into the channel from the first opening is supplied to the container section from the second opening without passing through a region disposed between the energy generating element and the discharge port.
    Type: Application
    Filed: March 28, 2016
    Publication date: October 6, 2016
    Inventors: Tsuyoshi Arai, Yutaka Mita, Yuichi Takahashi, Yoshimasa Araki, Tohru Ishibashi
  • Publication number: 20160229194
    Abstract: There is provided a liquid ejection device including a head for ejecting a liquid, a liquid containing unit, a liquid filler, and a pressure adjusting unit, in which the liquid containing unit includes a sealed housing and a flexible member provided in the housing, the housing includes a first containing space communicating with the head and a second containing space partitioned from the first containing space through use of the flexible member, the first containing space contains the liquid, and the liquid filler is filled into the second containing space, the pressure adjusting unit communicates with the second containing space, and adjusts the pressure of the liquid filler filled into the second containing space so as to maintain a negative pressure with respect to the head.
    Type: Application
    Filed: April 7, 2016
    Publication date: August 11, 2016
    Inventors: Yoshimasa Araki, Yasuyuki Tamura, Akio Saito, Makoto Fukuhara, Hiroyuki Ozaki
  • Patent number: 9340032
    Abstract: There is provided a liquid ejection device including a head for ejecting a liquid, a liquid containing unit, a liquid filler, and a pressure adjusting unit, in which the liquid containing unit includes a sealed housing and a flexible member provided in the housing, the housing includes a first containing space communicating with the head and a second containing space partitioned from the first containing space through use of the flexible member, the first containing space contains the liquid, and the liquid filler is filled into the second containing space, the pressure adjusting unit communicates with the second containing space, and adjusts the pressure of the liquid filler filled into the second containing space so as to maintain a negative pressure with respect to the head.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: May 17, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshimasa Araki, Yasuyuki Tamura, Akio Saito, Makoto Fukuhara, Hiroyuki Ozaki
  • Publication number: 20160009007
    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: Application
    Filed: July 8, 2015
    Publication date: January 14, 2016
    Inventors: Yoshimasa Araki, Koichi Kitakami, Tsuyoshi Arai, Yutaka Mita
  • Publication number: 20150144709
    Abstract: A liquid discharge apparatus comprises a head having an discharge port surface on which a discharge port is provided for discharging a liquid, and a liquid moving unit arranged apart from the discharge port surface and configured to be movable along the discharge port surface, wherein, the liquid moving unit moves a liquid on the discharge port surface to a collecting position in which the discharge port is not provided, with a moving of the liquid moving unit.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 28, 2015
    Inventors: Tohru Ishibashi, Yoshimasa Araki, Akio Saito, Koichi Kitakami, Yasuyuki Tamura
  • Publication number: 20150097900
    Abstract: There is provided a liquid ejection device including a head for ejecting a liquid, a liquid containing unit, a liquid filler, and a pressure adjusting unit, in which the liquid containing unit includes a sealed housing and a flexible member provided in the housing, the housing includes a first containing space communicating with the head and a second containing space partitioned from the first containing space through use of the flexible member, the first containing space contains the liquid, and the liquid filler is filled into the second containing space, the pressure adjusting unit communicates with the second containing space, and adjusts the pressure of the liquid filler filled into the second containing space so as to maintain a negative pressure with respect to the head.
    Type: Application
    Filed: September 25, 2014
    Publication date: April 9, 2015
    Inventors: Yoshimasa Araki, Yasuyuki Tamura, Akio Saito, Makoto Fukuhara, Hiroyuki Ozaki
  • Patent number: 8684512
    Abstract: An ink drying apparatus is provided with a gas passage through which a printed material to which ink is attached passes. Further, a flow applying unit configured to create a flow of gas in the gas passage in a predetermined direction, a heating unit configured to heat the gas in the gas passage, and a solvent removing unit configured to remove a solvent in the ink from the gas passage are provided. In the ink drying apparatus, the heating unit and the solvent removing unit are associated with each other such that heat can transfer from the solvent removing unit to the heating unit by a heat transmission unit.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: April 1, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Nakazawa, Yoshimasa Araki
  • Publication number: 20120189359
    Abstract: A printing apparatus employs a photosensitive drum for forming a latent image on a surface region thereof, a developing unit for forming a protrusion by selectively causing ink repellent particles to adhere onto the surface region carrying the latent image formed thereon, an ink roller for feeding ink to the protrusion on the surface of the photosensitive drum, a blanket cylinder for receiving the ink from the projected region, an impression cylinder for pressing the ink on the surface of the blanket cylinder when the ink is transferred onto a sheet of paper, and a conveying unit for conveying the sheet of paper. The surface of the ink repellent particles has a property of repelling the ink, while the surface of the photosensitive drum has a property of not repelling the ink.
    Type: Application
    Filed: August 20, 2010
    Publication date: July 26, 2012
    Inventors: Koichi Kitakami, Motokazu Kobayashi, Yoshimasa Araki
  • Publication number: 20120069110
    Abstract: An ink drying apparatus (10) according to the present invention is provided with a gas passage (46) through which a printed material (14) to which ink is attached passes. Further, flow applying unit (48) configured to flow a gas in the gas passage (46) in a predetermined direction, heating unit (60) configured to heat the gas in the gas passage (46), and solvent removing unit (71) configured to remove a solvent in the ink from the gas passage (46) are provided. In the ink drying apparatus (10), the heating unit (60) and the solvent removing unit (71) are associated with each other such that heat can transfer from the solvent removing unit (71) to the heating unit (60) by a heat transmission unit.
    Type: Application
    Filed: May 25, 2010
    Publication date: March 22, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takashi Nakazawa, Yoshimasa Araki
  • Patent number: 8038256
    Abstract: When different liquids are charged in a plurality of nozzles, the liquids are drawn by suction or pushed out reliably from the nozzles, so that the liquids collected by suction or pushing out can be reused. For this purpose, a removing unit, which has a cap that operates to cover nozzle discharge ports and to come into tight contact with a head, is provided. Suction is performed from each nozzle separately. Different collection tubes and collection tanks are provided for the removing unit. A liquid having the same liquid composition is accumulated in one collection tank for the same liquid composition via the collection tube of a liquid channel for the same liquid composition.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: October 18, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshimasa Araki, Shin-ichiro Takahama
  • Publication number: 20110237463
    Abstract: An apparatus for applying a solution to be used for manufacturing DNA chips is provided in a holding member with a sensor for monitoring a substrate temperature, a temperature adjusting section for controlling the substrate temperature, and a control section for feeding back a control temperature, by using the monitored temperature, to the temperature adjusting section for controlling the substrate temperature, wherein the substrate temperature is controlled to such a level as will accelerate the reaction between the substrate and probes in the sample solution.
    Type: Application
    Filed: June 9, 2011
    Publication date: September 29, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: YOSHIMASA ARAKI, TOHRU ISHIBASHI
  • Publication number: 20110139028
    Abstract: A printing apparatus includes a plate forming member that forms a rewritable plate, a latent image forming unit, a projection forming unit configured to selectively adhere particles to a portion of a surface of the plate forming member where a latent image is formed in order to form a projection, a recording material supply unit, an intermediate transfer member for transfer of a recording material, a pressing unit configured to press the recording material on a surface of the intermediate transfer member during transfer of the recording material to a recording medium, and a conveying unit configured to convey the medium. A surface of the particles has properties to repel the recording material, and the surface of the plate forming member has properties not to repel the recording material. The printing apparatus further includes a unit configured to apply a voltage to the recording material supply unit.
    Type: Application
    Filed: November 18, 2010
    Publication date: June 16, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yoshimasa Araki
  • Publication number: 20110120327
    Abstract: A printing apparatus includes a plate forming member that forms a rewritable plate, a latent image forming unit, a projection forming unit configured to selectively adhere ink-repellent particles to a portion of a surface of the plate forming member where a latent image is formed in order to form a projection, a recording material supply unit, an intermediate transfer member for transfer of a recording material, a pressing unit configured to press the recording material on a surface of the intermediate transfer member during transfer of the recording material to a recording medium, and a conveying unit configured to convey the medium. The printing apparatus further includes a particle storage unit configured to store the particles, and a particle washing unit configured to wash at least part of the removed particles. At least part of the removed and washed particles is filled into the particle storage unit.
    Type: Application
    Filed: November 18, 2010
    Publication date: May 26, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yoshimasa Araki