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).
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Publication number: 20180079214Abstract: 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: ApplicationFiled: May 9, 2016Publication date: March 22, 2018Inventors: Kensuke Tone, Tohru Ishibashi, Yoshimasa Araki, Tsuyoshi Arai, Yutaka Mita, Yuichi Takahashi
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Publication number: 20180001652Abstract: 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: ApplicationFiled: September 18, 2017Publication date: January 4, 2018Inventors: Yoshimasa Araki, Yuichi Takahashi, Tsuyoshi Arai, Yutaka Mita, Tohru Ishibashi
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Patent number: 9834002Abstract: 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: GrantFiled: March 23, 2016Date of Patent: December 5, 2017Assignee: CANON KABUSHIKI KAISHAInventors: Yoshimasa Araki, Yuichi Takahashi, Tsuyoshi Arai, Yutaka Mita, Tohru Ishibashi
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Publication number: 20170326583Abstract: 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: ApplicationFiled: October 5, 2015Publication date: November 16, 2017Applicant: CANON KABUSHIKI KAISHAInventors: Toshiki Ito, Yoshimasa Araki, Kazumi Iwashita
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Patent number: 9493004Abstract: 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: GrantFiled: November 12, 2014Date of Patent: November 15, 2016Assignee: Canon Kabushiki KaishaInventors: Tohru Ishibashi, Yoshimasa Araki, Akio Saito, Koichi Kitakami, Yasuyuki Tamura
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Patent number: 9475303Abstract: 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: GrantFiled: April 7, 2016Date of Patent: October 25, 2016Assignee: Canon Kabushiki KaishaInventors: Yoshimasa Araki, Yasuyuki Tamura, Akio Saito, Makoto Fukuhara, Hiroyuki Ozaki
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Publication number: 20160288521Abstract: 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: ApplicationFiled: March 23, 2016Publication date: October 6, 2016Inventors: Yoshimasa Araki, Yuichi Takahashi, Tsuyoshi Arai, Yutaka Mita, Tohru Ishibashi
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Publication number: 20160288378Abstract: 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: ApplicationFiled: March 28, 2016Publication date: October 6, 2016Inventors: Tsuyoshi Arai, Yutaka Mita, Yuichi Takahashi, Yoshimasa Araki, Tohru Ishibashi
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Publication number: 20160229194Abstract: 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: ApplicationFiled: April 7, 2016Publication date: August 11, 2016Inventors: Yoshimasa Araki, Yasuyuki Tamura, Akio Saito, Makoto Fukuhara, Hiroyuki Ozaki
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Patent number: 9340032Abstract: 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: GrantFiled: September 25, 2014Date of Patent: May 17, 2016Assignee: Canon Kabushiki KaishaInventors: Yoshimasa Araki, Yasuyuki Tamura, Akio Saito, Makoto Fukuhara, Hiroyuki Ozaki
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Publication number: 20160009007Abstract: 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: ApplicationFiled: July 8, 2015Publication date: January 14, 2016Inventors: Yoshimasa Araki, Koichi Kitakami, Tsuyoshi Arai, Yutaka Mita
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Publication number: 20150144709Abstract: 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: ApplicationFiled: November 12, 2014Publication date: May 28, 2015Inventors: Tohru Ishibashi, Yoshimasa Araki, Akio Saito, Koichi Kitakami, Yasuyuki Tamura
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Publication number: 20150097900Abstract: 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: ApplicationFiled: September 25, 2014Publication date: April 9, 2015Inventors: Yoshimasa Araki, Yasuyuki Tamura, Akio Saito, Makoto Fukuhara, Hiroyuki Ozaki
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Patent number: 8684512Abstract: 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: GrantFiled: May 25, 2010Date of Patent: April 1, 2014Assignee: Canon Kabushiki KaishaInventors: Takashi Nakazawa, Yoshimasa Araki
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Publication number: 20120189359Abstract: 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: ApplicationFiled: August 20, 2010Publication date: July 26, 2012Inventors: Koichi Kitakami, Motokazu Kobayashi, Yoshimasa Araki
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Publication number: 20120069110Abstract: 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: ApplicationFiled: May 25, 2010Publication date: March 22, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Takashi Nakazawa, Yoshimasa Araki
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Patent number: 8038256Abstract: 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: GrantFiled: August 4, 2009Date of Patent: October 18, 2011Assignee: Canon Kabushiki KaishaInventors: Yoshimasa Araki, Shin-ichiro Takahama
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Publication number: 20110237463Abstract: 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: ApplicationFiled: June 9, 2011Publication date: September 29, 2011Applicant: CANON KABUSHIKI KAISHAInventors: YOSHIMASA ARAKI, TOHRU ISHIBASHI
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Publication number: 20110139028Abstract: 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: ApplicationFiled: November 18, 2010Publication date: June 16, 2011Applicant: CANON KABUSHIKI KAISHAInventor: Yoshimasa Araki
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Publication number: 20110120327Abstract: 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: ApplicationFiled: November 18, 2010Publication date: May 26, 2011Applicant: CANON KABUSHIKI KAISHAInventor: Yoshimasa Araki