Patents by Inventor Keiichirou Takeuchi
Keiichirou Takeuchi 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: 20220396083Abstract: An ink jet recording apparatus according to the present invention includes: a conveying unit that conveys a recording medium; a pretreatment unit that performs corona treatment on a surface of the recording medium; an ink image forming unit configured to be able to form an ink image by applying an ink of at least two colors, the ink containing an anionic pigment; a brightness measuring unit that measures brightness of the ink image; and a corona treatment intensity changing unit configured to change a corona treatment intensity of the pretreatment unit based on a result of the brightness measuring unit.Type: ApplicationFiled: June 14, 2022Publication date: December 15, 2022Inventors: Keiichirou Takeuchi, Koji Inoue
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Publication number: 20220396069Abstract: Provided is an ink jet printing method including: subjecting a printing medium to corona discharge treatment; and applying an ink containing an anionic pigment to a surface of the printing medium subjected to the corona discharge treatment, wherein the corona discharge treatment has a discharge quantity of 3,400 W·min/m2 or more.Type: ApplicationFiled: June 14, 2022Publication date: December 15, 2022Inventors: Koji Inoue, Keiichirou Takeuchi
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Patent number: 10632765Abstract: An ink jet recording apparatus includes: an image forming unit for forming an ink image containing a liquid component and a coloring material on a moving ink receiving medium; and a liquid absorbing unit having a liquid absorbing member which absorbs at least a part of the liquid component from the ink image by coming into contact with the ink image on the ink receiving medium, in which, in a moving direction of the ink receiving medium, a curvature radius R1 of the ink receiving medium at a contact start position between the liquid absorbing member and the ink image and a curvature radius R2 of the liquid absorbing member at the contact start position satisfy a relationship in which R1>0, R2<0, and |R1|?|R2|.Type: GrantFiled: June 28, 2018Date of Patent: April 28, 2020Assignee: Canon Kabushiki KaishaInventors: Keiichirou Takeuchi, Koji Inoue, Akihiro Mouri, Toru Ohnishi
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Patent number: 10562330Abstract: A printing mode for performing printing to a printing medium and a determination mode for determining the application amount of a reaction liquid to a discharge medium can be performed. In the determination mode, a reaction liquid application unit forms a layer of the reaction liquid on the discharge medium, and then an ink application unit applies an ink onto a part of the layer to form a test pattern to be utilized for the determination. In the formation of the test pattern, an image to be formed by the ink by the aggregation of a solid content in the applied ink partially moves and shrinks on the layer of the reaction liquid to be thereby deformed with a grade according to the applied reaction liquid.Type: GrantFiled: October 19, 2018Date of Patent: February 18, 2020Assignee: Canon Kabushiki KaishaInventors: Eisuke Nishitani, Masaki Nitta, Yoshiaki Murayama, Keiichirou Takeuchi, Rinako Kameshima
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Patent number: 10500841Abstract: An ink jet recording apparatus of the present invention includes an image forming unit which forms an ink image by discharging and applying ink containing at least a resin and a liquid component as an ink droplet onto a transfer body, a liquid removing unit which removes the liquid component in the ink image, a transfer unit which transfers removes the image, from which the liquid component is removed, onto a recording medium, a fixing unit which performs heating and pressing fixing on the image formed on the recording medium by pressing a fixing substrate, a liquid adhesion determination unit which determines whether a liquid adheres to a surface of the fixing substrate, and a liquid removing condition changing unit which changes a liquid removing condition of the liquid removing unit based on the determination result of the liquid adhesion determination unit.Type: GrantFiled: June 28, 2018Date of Patent: December 10, 2019Assignee: Canon Kabushiki KaishaInventors: Eisuke Nishitani, Keiichirou Takeuchi, Akira Morita, Kanako Soma, Takumi Otani, Fumihiro Goto, Koichiro Nakazawa
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Patent number: 10464310Abstract: A recording apparatus includes an ink application unit configured to apply ink to a transfer body, a first application unit configured to apply a first treatment liquid over an area on the transfer body, a second application unit configured to apply a second treatment liquid to the transfer body, a heating unit configured to heat the second treatment liquid applied to the transfer body, and a transfer unit configured to transfer the ink image, wherein a ratio of the second treatment liquid to the first treatment liquid on an outside of ink portion is determined according to the recording medium.Type: GrantFiled: June 11, 2018Date of Patent: November 5, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Rinako Kameshima, Minoru Teshigawara, Yoshiaki Murayama, Masaki Nitta, Eisuke Nishitani, Keiichirou Takeuchi
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Patent number: 10357965Abstract: A printing apparatus having an ink application unit applying a first ink containing at least resin as a solid content onto a discharge medium, a reaction liquid application unit applying a reaction liquid reacting with a component in the ink to aggregate the solid content in the first ink onto the discharge medium, and a liquid absorbing unit for bringing a liquid absorbing member of a porous body into contact with an ink image formed by the ink and the reaction liquid on the discharge medium to absorb liquid to thereby reduce the amount of the liquid in the ink image, in which a layer is formed with the first ink and the reaction liquid on the discharge medium, and then a test pattern utilized for detection is printed by applying a second ink different from the first ink to a part of the layer by the ink application unit.Type: GrantFiled: June 28, 2018Date of Patent: July 23, 2019Assignee: Canon Kabushiki KaishaInventors: Eisuke Nishitani, Masaki Nitta, Yoshiaki Murayama, Keiichirou Takeuchi, Rinako Kameshima
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Publication number: 20190126654Abstract: A printing mode for performing printing to a printing medium and a determination mode for determining the application amount of a reaction liquid to a discharge medium can be performed. In the determination mode, a reaction liquid application unit forms a layer of the reaction liquid on the discharge medium, and then an ink application unit applies an ink onto a part of the layer to form a test pattern to be utilized for the determination. In the formation of the test pattern, an image to be formed by the ink by the aggregation of a solid content in the applied ink partially moves and shrinks on the layer of the reaction liquid to be thereby deformed with a grade according to the applied reaction liquid.Type: ApplicationFiled: October 19, 2018Publication date: May 2, 2019Inventors: Eisuke Nishitani, Masaki Nitta, Yoshiaki Murayama, Keiichirou Takeuchi, Rinako Kameshima
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Publication number: 20190009578Abstract: An ink jet recording apparatus includes: an image forming unit for forming an ink image containing a liquid component and a coloring material on a moving ink receiving medium; and a liquid absorbing unit having a liquid absorbing member which absorbs at least a part of the liquid component from the ink image by coming into contact with the ink image on the ink receiving medium, in which, in a moving direction of the ink receiving medium, a curvature radius R1 of the ink receiving medium at a contact start position between the liquid absorbing member and the ink image and a curvature radius R2 of the liquid absorbing member at the contact start position satisfy a relationship in which R1>0, R2<0, and |R1|?|R2|.Type: ApplicationFiled: June 28, 2018Publication date: January 10, 2019Inventors: Keiichirou Takeuchi, Koji Inoue, Akihiro Mouri, Toru Ohnishi
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Publication number: 20190009521Abstract: A printing apparatus having an ink application unit applying a first ink containing at least resin as a solid content onto a discharge medium, a reaction liquid application unit applying a reaction liquid reacting with a component in the ink to aggregate the solid content in the first ink onto the discharge medium, and a liquid absorbing unit for bringing a liquid absorbing member of a porous body into contact with an ink image formed by the ink and the reaction liquid on the discharge medium to absorb liquid to thereby reduce the amount of the liquid in the ink image, in which a layer is formed with the first ink and the reaction liquid on the discharge medium, and then a test pattern utilized for detection is printed by applying a second ink different from the first ink to a part of the layer by the ink application unit.Type: ApplicationFiled: June 28, 2018Publication date: January 10, 2019Inventors: Eisuke Nishitani, Masaki Nitta, Yoshiaki Murayama, Keiichirou Takeuchi, Rinako Kameshima
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Publication number: 20190009518Abstract: An ink jet recording apparatus of the present invention includes an image forming unit which forms an ink image by discharging and applying ink containing at least a resin and a liquid component as an ink droplet onto a transfer body, a liquid removing unit which removes the liquid component in the ink image, a transfer unit which transfers removes the image, from which the liquid component is removed, onto a recording medium, a fixing unit which performs heating and pressing fixing on the image formed on the recording medium by pressing a fixing substrate, a liquid adhesion determination unit which determines whether a liquid adheres to a surface of the fixing substrate, and a liquid removing condition changing unit which changes a liquid removing condition of the liquid removing unit based on the determination result of the liquid adhesion determination unit.Type: ApplicationFiled: June 28, 2018Publication date: January 10, 2019Inventors: Eisuke Nishitani, Keiichirou Takeuchi, Akira Morita, Kanako Soma, Takumi Otani, Fumihiro Goto, Koichiro Nakazawa
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Publication number: 20180361731Abstract: A recording apparatus includes an ink application unit configured to apply ink to a transfer body, a first application unit configured to apply a first treatment liquid over an area on the transfer body, a second application unit configured to apply a second treatment liquid to the transfer body, a heating unit configured to heat the second treatment liquid applied to the transfer body, and a transfer unit configured to transfer the ink image, wherein a ratio of the second treatment liquid to the first treatment liquid on an outside of ink portion is determined according to the recording medium.Type: ApplicationFiled: June 11, 2018Publication date: December 20, 2018Inventors: Rinako Kameshima, Minoru Teshigawara, Yoshiaki Murayama, Masaki Nitta, Eisuke Nishitani, Keiichirou Takeuchi
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Patent number: 9789705Abstract: An ink jet recording method in which an image is formed by applying onto a recording medium a reaction liquid, an aqueous pigment ink containing an anionic polymer aggregatable by the reaction liquid and a resin-containing aqueous liquid containing an anionic polymer aggregatable by the reaction liquid to form an image, the method including the steps of applying the reaction liquid to the recording medium; applying the aqueous pigment ink to a surface of the recording medium to which the reaction liquid is applied by an ink jet method to form an image; and applying the resin-containing aqueous liquid to the image formed on the recording medium by the ink jet method. The surface tension of the resin-containing aqueous liquid is higher than the surface tension of the aqueous pigment ink.Type: GrantFiled: March 30, 2016Date of Patent: October 17, 2017Assignee: Canon Kabushiki KaishaInventors: Keiichirou Takeuchi, Koichiro Nakazawa, Fumihiro Goto, Eisuke Nishitani, Kanako Soma, Takumi Otani
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Patent number: 9718278Abstract: An image forming apparatus comprising: a color ink applying unit configured to apply color ink to a print medium; a clear ink applying unit configured to apply a plurality of clear inks to the print medium to cover the applied color ink, each clear ink of the plurality of clear inks having a degree of glossiness that is different from each other; and a determining unit configured to determine an amount ratio of each clear ink to each other clear ink of the plurality of clear inks in accordance with the degree of glossiness indicated by the glossiness data and to determine an amount of each clear ink of the plurality of clear inks such that the determined ratio is satisfied and such that the clear inks cover the applied color ink and print medium at approximately 100% area coverage.Type: GrantFiled: August 23, 2016Date of Patent: August 1, 2017Assignee: Canon Kabushiki KaishaInventors: Akira Morita, Keiichirou Takeuchi, Eisuke Nishitani, Takumi Otani, Fumihiro Goto, Koichiro Nakazawa
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Patent number: 9656459Abstract: An ink jet recording method of transferring onto a recording medium an intermediate image formed on an intermediate transfer member by an ink jet technique to record an image on the recording medium, the method including a pretreatment agent applying step of applying a pretreatment agent onto an intermediate transfer member; an ink applying step of applying an ink by an ink jet technique onto a region of the intermediate transfer member onto which the pretreatment agent is applied, thereby forming an intermediate image; a transfer step of transferring the intermediate image formed on the intermediate transfer member onto a recording medium; and a selection controlling step of controlling selection of execution or non-execution of at least one of the pretreatment agent applying step and the transfer step, based on an amount of the ink applied onto the intermediate transfer member.Type: GrantFiled: June 21, 2016Date of Patent: May 23, 2017Assignee: CANON KABUSHIKI KAISHAInventors: Nobuyuki Kuwabara, Fumihiro Goto, Masaki Nitta, Keiichirou Takeuchi, Kanako Soma, Takao Ogata
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Publication number: 20170057245Abstract: An image forming apparatus comprising: a color ink applying unit configured to apply color ink to a print medium; a clear ink applying unit configured to apply a plurality of clear inks to the print medium to cover the applied color ink, each clear ink of the plurality of clear inks having a degree of glossiness that is different from each other; and a determining unit configured to determine an amount ratio of each clear ink to each other clear ink of the plurality of clear inks in accordance with the degree of glossiness indicated by the glossiness data and to determine an amount of each clear ink of the plurality of clear inks such that the determined ratio is satisfied and such that the clear inks cover the applied color ink and print medium at approximately 100% area coverage.Type: ApplicationFiled: August 23, 2016Publication date: March 2, 2017Inventors: Akira Morita, Keiichirou Takeuchi, Eisuke Nishitani, Takumi Otani, Fumihiro Goto, Koichiro Nakazawa
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Patent number: 9566781Abstract: A transfer-type image recording method including the steps of applying a treatment liquid that causes aggregation of a component contained in ink to an image formation surface of an intermediate transfer member; applying ink to the surface to form an intermediate image; transferring the image from the surface to an recording medium; and applying an aqueous cleaning liquid to the surface. The treatment liquid contains a nonionic surfactant. In the step of applying a treatment liquid, T1<Tc1 is satisfied, where T1 and Tc1 are respectively the temperature and cloud point of the treatment liquid. In the step of applying an aqueous cleaning liquid, T2>Tc2 is satisfied, where T2 is the temperature of a liquid mixture, formed on the surface, of a remainder of the treatment liquid and the aqueous cleaning liquid, and Tc2 is the cloud point of the liquid mixture.Type: GrantFiled: May 6, 2016Date of Patent: February 14, 2017Assignee: Canon Kabushiki KaishaInventors: Keiichirou Takeuchi, Masaki Nitta, Toru Ohnishi, Takao Ogata
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Publication number: 20170008273Abstract: An ink jet recording method of transferring onto a recording medium an intermediate image formed on an intermediate transfer member by an ink jet technique to record an image on the recording medium, the method including a pretreatment agent applying step of applying a pretreatment agent onto an intermediate transfer member; an ink applying step of applying an ink by an ink jet technique onto a region of the intermediate transfer member onto which the pretreatment agent is applied, thereby forming an intermediate image; a transfer step of transferring the intermediate image formed on the intermediate transfer member onto a recording medium; and a selection controlling step of controlling selection of execution or non-execution of at least one of the pretreatment agent applying step and the transfer step, based on an amount of the ink applied onto the intermediate transfer member.Type: ApplicationFiled: June 21, 2016Publication date: January 12, 2017Inventors: Nobuyuki Kuwabara, Fumihiro Goto, Masaki Nitta, Keiichirou Takeuchi, Kanako Soma, Takao Ogata
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Publication number: 20160332438Abstract: A transfer-type image recording method including the steps of applying a treatment liquid that causes aggregation of a component contained in ink to an image formation surface of an intermediate transfer member; applying ink to the surface to form an intermediate image; transferring the image from the surface to an recording medium; and applying an aqueous cleaning liquid to the surface. The treatment liquid contains a nonionic surfactant. In the step of applying a treatment liquid, T1 <Tc1 is satisfied, where T1 and Tc1 are respectively the temperature and cloud point of the treatment liquid. In the step of applying an aqueous cleaning liquid, T2 >Tc2 is satisfied, where T2 is the temperature of a liquid mixture, formed on the surface, of a remainder of the treatment liquid and the aqueous cleaning liquid, and Tc2 is the cloud point of the liquid mixture.Type: ApplicationFiled: May 6, 2016Publication date: November 17, 2016Inventors: Keiichirou Takeuchi, Masaki Nitta, Toru Ohnishi, Takao Ogata
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Publication number: 20160311235Abstract: An ink jet recording method in which an image is formed by applying onto a recording medium a reaction liquid, an aqueous pigment ink containing an anionic polymer aggregatable by the reaction liquid and a resin-containing aqueous liquid containing an anionic polymer aggregatable by the reaction liquid to form an image, the method including the steps of applying the reaction liquid to the recording medium; applying the aqueous pigment ink to a surface of the recording medium to which the reaction liquid is applied by an ink jet method to form an image; and applying the resin-containing aqueous liquid to the image formed on the recording medium by the ink jet method. The surface tension of the resin-containing aqueous liquid is higher than the surface tension of the aqueous pigment ink.Type: ApplicationFiled: March 30, 2016Publication date: October 27, 2016Inventors: Keiichirou Takeuchi, Koichiro Nakazawa, Fumihiro Goto, Eisuke Nishitani, Kanako Soma, Takumi Otani