Patents by Inventor Satoshi Takebayashi
Satoshi Takebayashi 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: 20230158809Abstract: The present invention provides an ink jet recording method capable of recording an image having good abrasion resistance by using an aqueous ink and a reaction liquid. In the ink jet recording method, the aqueous ink containing a resin particle and the reaction liquid containing a reactant for aggregating the component in the aqueous ink are ejected from a recording head of the ink jet system and applied onto a recording medium. The reaction liquid contains a compound represented by the general formula (1) (n in the formula represents an integer of 0 to 3). At least one of the aqueous ink and the reaction liquid contains a surfactant having an HLB value of ? 15.Type: ApplicationFiled: August 11, 2022Publication date: May 25, 2023Inventors: Masanori Yoshida, Yoshitaka Torisaka, Satoshi Takebayashi, Eriko Yoshino, Sayoko Nagashima
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Publication number: 20210187938Abstract: An inkjet recording method of the present disclosure is an inkjet recording method of recording an image on a recording medium using an aqueous ink. Coating wax on a transfer body; applying an aqueous reaction solution containing a reaction agent reacting with the aqueous ink to the transfer body; forming an intermediate image by applying the aqueous ink to the transfer body; and transferring the intermediate image by bringing the intermediate image into contact with the recording medium are included in this order, and a surface temperature Ta (° C.) of the transfer body at a position where the intermediate image contacts the recording medium, a surface temperature Tb (° C.) of the transfer body at a position where the intermediate image is separated from the transfer body and a melting point Tm (° C.) of the wax satisfy a relationship of Tb<Tm?Ta.Type: ApplicationFiled: December 14, 2020Publication date: June 24, 2021Inventors: Toru Ohnishi, Tsuyoshi Kanke, Sayoko Nagashima, Kanako Soma, Mikio Sanada, Satoshi Takebayashi, Yuko Negishi, Tetsuya Kosuge, Satoshi Kudo, Naofumi Shimomura, Ryo Taguri
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Patent number: 10710365Abstract: Provided is an ink jet recording method capable of suppressing deterioration in an ejection property which occurs after a protection layer is eluted by an electrochemical reaction. The ink jet recording method includes using an ink jet recording apparatus having a recording head equipped with a heater, a first protection layer and a second protection layer made of a material such as iridium and a unit of causing an electrochemical reaction with the second protection layer as one of electrodes and an ink-mediated conduction site as the other electrode and ejecting the ink from the recording head to record an image on a recording medium, wherein the ink is an aqueous ink containing a pigment, a resin dispersant for dispersing the pigment and a specified chelating agent.Type: GrantFiled: July 12, 2018Date of Patent: July 14, 2020Assignee: Canon Kabushiki KaishaInventors: Satoshi Takebayashi, Mamiko Kaji
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Patent number: 10688787Abstract: Provided is an ink jet recording method capable of suppressing deterioration in an ejection property when voltage control of a recording head is performed. The ink jet recording method includes using an ink jet recording apparatus having a recording head equipped with a heater, a first protection layer and a second protection layer made of a metal material, and a unit of applying a voltage with the second protection layer as a cathode and an ink-mediated conduction site as an anode and ejecting the ink from the recording head to record an image on a recording medium, wherein the ink is an aqueous ink containing a component having an anionic group and a soluble metal ion having a standard electrode potential of more than 0 V.Type: GrantFiled: July 12, 2018Date of Patent: June 23, 2020Assignee: Canon Kabushiki KaishaInventors: Mamiko Kaji, Satoshi Takebayashi, Yuko Nishiwaki, Tsuyoshi Kanke, Takashi Imai
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Patent number: 10525754Abstract: Provided is an ink jet recording method for recording an image on a recording medium by making use of an aqueous reaction liquid containing a reactant and first and second inks which are aqueous inks containing a coloring material. This method has a step of applying the reaction liquid to a first recording medium, a step of applying the first and second inks, in order of mention, to the first recording medium to form a first image and a step of bringing a porous layer of a liquid absorption member into contact with the first image and thereby absorbing a liquid component therefrom. The second image has brightness higher than that of the first ink.Type: GrantFiled: June 29, 2018Date of Patent: January 7, 2020Assignee: Canon Kabushiki KaishaInventors: Akiko Tominaga, Tsuyoshi Kanke, Satoshi Takebayashi, Junichi Sakai
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Publication number: 20190375665Abstract: The present invention provides a sludge dehydrating agent having excellent dehydrating effects, particularly, an excellent floc formation ability and gravity filtration property even if the amount to be added is small and a sludge dehydrating method using the sludge dehydrating agent. The sludge dehydrating agent comprises at least one crosslinked polymer selected from the group consisting of a polymer A, a polymer B, and a polymer C each comprising a monomer represented by a particular structural formula, wherein the crosslinked polymer has an intrinsic viscosity of 0.5 to 5.0 dL/g, the intrinsic viscosity measured with 1.0N sodium nitrate, and the sludge dehydrating method uses the sludge dehydrating agent.Type: ApplicationFiled: February 27, 2018Publication date: December 12, 2019Applicant: KURITA WATER INDUSTRIES LTD.Inventors: Shihoko SEKIGUCHI, Satoshi TAKEBAYASHI, Shigeru SATO, Minoru WATANABE
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Patent number: 10233343Abstract: An aqueous ink for use in an ink jet recording method in which ink is thermally ejected from a recording head to record an image on a recording medium. The aqueous ink includes zirconium oxide; a pigment; a resin dispersant for the pigment; and a first and a second urethane resin. The content (ppm) of the zirconium oxide in terms of zirconium is 0.5-20.0 ppm based on the total mass of the ink. The pigment is at least one of phthalocyanine, quinacridone, diketopyrrolopyrrole, dioxazine, perinone, perylene and anthraquinone pigments. Each of the first and second urethane resins has a unit derived from a polyether polyol. The ratio of the weight-average molecular weight Mw1 of the first urethane resin to the weight-average molecular weight Mw2 of the second urethane resin is 0.20-0.80 times. The second urethane resin has a weight-average molecular weight Mw2 of 20,000-70,000.Type: GrantFiled: August 3, 2016Date of Patent: March 19, 2019Assignee: Canon Kabushiki KaishaInventors: Satoshi Takebayashi, Shuichi Okazaki, Minako Kawabe, Yuko Nishiwaki, Hiroshi Kakikawa, Eriko Kawakita
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Publication number: 20190016129Abstract: Provided is an ink jet recording method capable of suppressing deterioration in an ejection property which occurs after a protection layer is eluted by an electrochemical reaction. The ink jet recording method includes using an ink jet recording apparatus having a recording head equipped with a heater, a first protection layer and a second protection layer made of a material such as iridium and a unit of causing an electrochemical reaction with the second protection layer as one of electrodes and an ink-mediated conduction site as the other electrode and ejecting the ink from the recording head to record an image on a recording medium, wherein the ink is an aqueous ink containing a pigment, a resin dispersant for dispersing the pigment and a specified chelating agent.Type: ApplicationFiled: July 12, 2018Publication date: January 17, 2019Inventors: Satoshi Takebayashi, Mamiko Kaji
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Publication number: 20190016136Abstract: Provided is an ink jet recording method capable of suppressing deterioration in an ejection property when voltage control of a recording head is performed. The ink jet recording method includes using an ink jet recording apparatus having a recording head equipped with a heater, a first protection layer and a second protection layer made of a metal material, and a unit of applying a voltage with the second protection layer as a cathode and an ink-mediated conduction site as an anode and ejecting the ink from the recording head to record an image on a recording medium, wherein the ink is an aqueous ink containing a component having an anionic group and a soluble metal ion having a standard electrode potential of more than 0 V.Type: ApplicationFiled: July 12, 2018Publication date: January 17, 2019Inventors: Mamiko Kaji, Satoshi Takebayashi, Yuko Nishiwaki, Tsuyoshi Kanke, Takashi Imai
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Publication number: 20190009591Abstract: An ink jet recording method for recording an image on a recording medium by using an aqueous reaction liquid containing a reactant and a first ink and a second ink, each a water-based ink containing a coloring material, includes a reaction liquid applying step, an image formation step for forming a first image by applying the first ink and the second ink in this order to the transfer body so as to overlap at least partially with a region to which the reaction liquid has been applied, a liquid absorption step for bringing a porous layer possessed by a liquid absorption member into contact with the first image to absorb a liquid component therefrom, and after the liquid absorption step, a transfer step for transferring the first image on the transfer body to the recording medium, and the first ink has brightness higher than the brightness of the second ink.Type: ApplicationFiled: June 28, 2018Publication date: January 10, 2019Inventors: Masanori Yoshida, Tsuyoshi Kanke, Satoshi Takebayashi, Junichi Sakai, Akiko Tominaga
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Publication number: 20190009603Abstract: Provided is an ink jet recording method for recording an image on a recording medium by making use of an aqueous reaction liquid containing a reactant and first and second inks which are aqueous inks containing a coloring material. This method has a step of applying the reaction liquid to a first recording medium, a step of applying the first and second inks, in order of mention, to the first recording medium to form a first image and a step of bringing a porous layer of a liquid absorption member into contact with the first image and thereby absorbing a liquid component therefrom. The second image has brightness higher than that of the first ink.Type: ApplicationFiled: June 29, 2018Publication date: January 10, 2019Inventors: Akiko Tominaga, Tsuyoshi Kanke, Satoshi Takebayashi, Junichi Sakai
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Patent number: 9592497Abstract: The present disclosure provides a process for the mono-reduction of one or more imide moieties in a compound comprising contacting the compound with hydrogen gas and a catalyst comprising a transition metal hydride in the presence of a base, under conditions for the mono-reduction of the one or more imide moieties to form a compound comprising one or more hydroxy amides.Type: GrantFiled: June 17, 2010Date of Patent: March 14, 2017Assignee: THE GOVERNORS OF THE UNIVERSITY OF ALBERTAInventors: Steven H. Bergens, Satoshi Takebayashi
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Patent number: 9574099Abstract: The present invention relates to an ink set enabling the recording of images that have excellent gloss clarity and abrasion resistance even when a plurality of inks are used in combination, and an ink jet recording method using the ink set.Type: GrantFiled: January 19, 2016Date of Patent: February 21, 2017Assignee: Canon Kabushiki KaishaInventors: Minako Kawabe, Hiroshi Kakikawa, Satoshi Takebayashi
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Publication number: 20170037267Abstract: An aqueous ink for use in an ink jet recording method in which ink is thermally ejected from a recording head to record an image on a recording medium. The aqueous ink includes zirconium oxide; a pigment; a resin dispersant for the pigment; and a first and a second urethane resin. The content (ppm) of the zirconium oxide in terms of zirconium is 0.5-20.0 ppm based on the total mass of the ink. The pigment is at least one of phthalocyanine, quinacridone, diketopyrrolopyrrole, dioxazine, perinone, perylene and anthraquinone pigments. Each of the first and second urethane resins has a unit derived from a polyether polyol. The ratio of the weight-average molecular weight Mw1 of the first urethane resin to the weight-average molecular weight Mw2 of the second urethane resin is 0.20-0.80 times. The second urethane resin has a weight-average molecular weight Mw2 of 20,000-70,000.Type: ApplicationFiled: August 3, 2016Publication date: February 9, 2017Inventors: Satoshi Takebayashi, Shuichi Okazaki, Minako Kawabe, Yuko Nishiwaki, Hiroshi Kakikawa, Eriko Kawakita
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Publication number: 20160215154Abstract: The present invention relates to an ink set enabling the recording of images that have excellent gloss clarity and abrasion resistance even when a plurality of inks are used in combination, and an ink jet recording method using the ink set.Type: ApplicationFiled: January 19, 2016Publication date: July 28, 2016Inventors: Minako Kawabe, Hiroshi Kakikawa, Satoshi Takebayashi
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Patent number: 9187662Abstract: An ink containing water, a water-soluble organic solvent and an organic pigment, wherein a primary particle of the organic pigment has a ratio (minor axis b)/(major axis a) of 0.70 or more and a particle diameter of 35 nm or less, the ink contains a water-soluble organic solvent with a dielectric constant of 25.0 or less in an amount of 0.5% by mass or more based on the total mass of the ink, and a dielectric constant ?mix of the ink as calculated according to the following equation (1) is 66-72: ?mix=?n?nrn/?nrn??Equation (1): wherein n means a kind of water or the water-soluble organic solvent, ?n is a dielectric constant of water or the water-soluble organic solvent represented by n, and rn is a content of water or the water-soluble organic solvent represented by n based on the total mass of the ink.Type: GrantFiled: February 27, 2013Date of Patent: November 17, 2015Assignee: Canon Kabushiki KaishaInventors: Masashi Yamamoto, Eiichi Nakata, Shuichi Okazaki, Satoshi Takebayashi
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Patent number: 8834621Abstract: Provided is a pigment particle suitable for an ink capable of recording an image that is excellent in color developability and lightfastness, and has a yellow hue. The pigment particle is a pigment particle having a structure represented by the following formula (1), in which a maximum absorption wavelength of an absorption spectrum in a wavelength region of 200 nm or more and 800 nm or less is present in a range of 340 nm or more and 360 nm or less.Type: GrantFiled: August 17, 2012Date of Patent: September 16, 2014Assignee: Canon Kabushiki KaishaInventors: Satoshi Takebayashi, Yoshio Nakajima, Shuichi Okazaki, Eiichi Nakata
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Publication number: 20140198151Abstract: An ink containing water, a water-soluble organic solvent and an organic pigment, wherein a primary particle of the organic pigment has a ratio (minor axis b)/(major axis a) of 0.70 or more and a particle diameter of 35 nm or less, the ink contains a water-soluble organic solvent with a dielectric constant of 25.0 or less in an amount of 0.5% by mass or more based on the total mass of the ink, and a dielectric constant ?mix of the ink as calculated according to the following equation (1) is 66-72: ?mix=?n?nrn/?nrn??Equation (1): wherein n means a kind of water or the water-soluble organic solvent, ?n is a dielectric constant of water or the water-soluble organic solvent represented by n, and rn is a content of water or the water-soluble organic solvent represented by n based on the total mass of the ink.Type: ApplicationFiled: February 27, 2013Publication date: July 17, 2014Inventors: Masashi Yamamoto, Eiichi Nakata, Shuichi Okazaki, Satoshi Takebayashi
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Publication number: 20130063518Abstract: Provided is a pigment particle suitable for an ink capable of recording an image that is excellent in color developability and lightfastness, and has a yellow hue. The pigment particle is a pigment particle having a structure represented by the following formula (1), in which a maximum absorption wavelength of an absorption spectrum in a wavelength region of 200 nm or more and 800 nm or less is present in a range of 340 nm or more and 360 nm or less.Type: ApplicationFiled: August 17, 2012Publication date: March 14, 2013Applicant: CANON KABUSHIKI KAISHAInventors: Satoshi Takebayashi, Yoshio Nakajima, Shuichi Okazaki, Eiichi Nakata
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Publication number: 20120165546Abstract: The present disclosure provides a process for the mono-reduction of one or more imide moieties in a compound comprising contacting the compound with hydrogen gas and a catalyst comprising a transition metal hydride in the presence of a base, under conditions for the mono-reduction of the one or more imide moieties to form a compound comprising one or more hydroxy amides.Type: ApplicationFiled: June 17, 2010Publication date: June 28, 2012Inventors: Steven H. Bergens, Satoshi Takebayashi