Patents by Inventor Yoshihide Aikawa
Yoshihide Aikawa 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: 20240150597Abstract: Provided is an aqueous ink that can record an image achieving both of high abrasion resistance and high color developability. The aqueous ink is an aqueous ink for ink jet including: a coloring material; and a resin particle. A resin for forming the resin particle includes a unit having an aromatic group, a unit having a cyano group, a unit derived from a (meth)acrylic acid ester having a branched alkyl group and a unit represented by the following general formula (1). In the following general formula (1), “n” represents the number of a repeating unit, R1 represents an alkyl group and E represents the number of repeating units of an ethylene oxide group and satisfies E?1.Type: ApplicationFiled: October 6, 2023Publication date: May 9, 2024Inventors: Akira Kuriyama, Yoshihide Aikawa, Masanori Yoshida, Kazuya Nushiro
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Publication number: 20240124733Abstract: Provided is an aqueous ink for ink jet capable of recording an image that is excellent in abrasion resistance immediately after recording and glossiness. The aqueous ink for ink jet includes: a coloring material dispersed by an action of an anionic group, a resin particle and a wax particle dispersed by a dispersant. A resin for forming the resin particle includes a unit having a cyano group and a volume-based 50% cumulative particle diameter Dw of the wax particle is larger than a volume-based 50% cumulative particle diameter Dc of the coloring material and a volume-based 50% cumulative particle diameter Dr of the resin particle.Type: ApplicationFiled: October 13, 2023Publication date: April 18, 2024Inventors: KAZUYA NUSHIRO, YOSHIHIDE AIKAWA, AKIRA KURIYAMA, MASANORI YOSHIDA
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Publication number: 20240100864Abstract: Provided is an ink jet recording method by which even when a recording medium having a relatively small basis weight or a highly water-absorbing recording medium is used, an image can be recorded while the occurrence of cockling is suppressed. The method is an ink jet recording method including recording an image on a recording medium with an ink jet recording apparatus including a blowing portion configured to blow air to the recording medium to dry an aqueous ink. The blowing portion includes conveying members and a blowing device. The conveying members include a first conveying member free of an adsorption mechanism and a second conveying member including an adsorption mechanism in the stated order. The aqueous ink includes a water-soluble organic solvent.Type: ApplicationFiled: September 21, 2023Publication date: March 28, 2024Inventors: MAMIKO KAJI, AKIRA KURIYAMA, YOSHIHIDE AIKAWA
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Patent number: 11104820Abstract: To provide an ink jet recording method which can record an image on a recording medium irrespective of what material is selected therefor. The ink jet recording method is a method of recording an image on a recording medium with a colorless transparent aqueous ink and includes a step of applying, to the recording medium, the aqueous ink containing a mineral acid and having a pH of 1.0 or less; and a step of forming carbon by making use of the mineral acid.Type: GrantFiled: July 15, 2019Date of Patent: August 31, 2021Assignee: Canon Kabushiki KaishaInventors: Shigemoto Abe, Mikio Sanada, Sayoko Nagashima, Yoshihide Aikawa
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Patent number: 10864747Abstract: The ink jet recording method using an ink jet recording apparatus including: a first ink and a second ink; and a recording head including a plurality of recording element substrates in which a first ejection orifice array for ejecting the first ink and a second ejection orifice array for ejecting the second ink are sequentially arranged in a predetermined direction, wherein the plurality of recording element substrates are arranged to be adjacent to each other in a predetermined direction, includes: a recording step of ejecting the ink from the recording head disposed so that an angle formed between the ejection orifice surface of the recording head and the direction of gravity is 0° or more to less than 90° to record an image on the recording medium, wherein a brightness of the first ink is lower than a brightness of the second ink.Type: GrantFiled: October 12, 2018Date of Patent: December 15, 2020Assignee: Canon Kabushiki KaishaInventors: Kouhei Nakagawa, Minako Kawabe, Yoshihide Aikawa, Hideyuki Saito
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Patent number: 10843483Abstract: A ink jet recording method, which uses an ink jet recording apparatus including: first and second inks each containing a coloring material; and a recording head having an ejection orifice surface in which a first ejection orifice array for ejecting the first ink and a second ejection orifice array for ejecting the second ink are formed, the first and second ejection orifice arrays being sequentially arranged from the bottom in the direction of gravity to be adjacent to each other and at least partially overlap each other, includes recording, wherein at least one of the first and second inks contains a resin, and a content of the resin in the second ink is smaller than a content of the resin in the first ink.Type: GrantFiled: October 12, 2018Date of Patent: November 24, 2020Assignee: Canon Kabushiki KaishaInventors: Hideyuki Saito, Kouhei Nakagawa, Yoshihide Aikawa, Minako Kawabe
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Patent number: 10843482Abstract: An ink jet recording method, which uses an ink jet recording apparatus including: first and second inks corresponding to aqueous inks containing a pigment; a recording head in which a first ejection orifice array for ejecting the first ink and a second ejection orifice array for ejecting the second ink are sequentially arranged from the bottom in the direction of gravity to be adjacent to each other and the first and second ejection orifice arrays are arranged to at least partially overlap each other; and a cleaning member, includes: recording; and cleaning, wherein at least one of the first and second inks contains a resin, and a content of the resin in the second ink is larger than a content of the resin in the first ink.Type: GrantFiled: October 12, 2018Date of Patent: November 24, 2020Assignee: Canon Kabushiki KaishaInventors: Yoshihide Aikawa, Minako Kawabe, Hideyuki Saito, Kouhei Nakagawa
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Patent number: 10723135Abstract: The ink jet recording method, which uses an ink jet recording apparatus, including: a first ink and a second ink containing a pigment; and a recording head having an ejection orifice surface in which a first ejection orifice array for ejecting the first ink and a second ejection orifice array for ejecting the second ink are formed, wherein the first ejection orifice array and the second ejection orifice array are sequentially arranged from the bottom in the direction of gravity to be adjacent to each other and arranged to at least partially overlap each other, includes: a recording step, wherein a true specific gravity of the pigment in the first ink is smaller than a true specific gravity of the pigment in the second ink.Type: GrantFiled: October 12, 2018Date of Patent: July 28, 2020Assignee: Canon Kabushiki KaishaInventors: Minako Kawabe, Kouhei Nakagawa, Hideyuki Saito, Yoshihide Aikawa
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Publication number: 20200032091Abstract: To provide an ink jet recording method which can record an image on a recording medium irrespective of what material is selected therefor. The ink jet recording method is a method of recording an image on a recording medium with a colorless transparent aqueous ink and includes a step of applying, to the recording medium, the aqueous ink containing a mineral acid and having a pH of 1.0 or less; and a step of forming carbon by making use of the mineral acid.Type: ApplicationFiled: July 15, 2019Publication date: January 30, 2020Inventors: Shigemoto Abe, Mikio Sanada, Sayoko Nagashima, Yoshihide Aikawa
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Patent number: 10280326Abstract: An ink jet recording method includes: performing application of aqueous ink onto a unit area by one relative scanning with a recording head and a recording medium to record an image, wherein the aqueous ink comprises a self-dispersion pigment, a urethane resin, and polyethylene glycol, a kind of the self-dispersion pigment is carbon black, number average molecular weight of the polyethylene glycol is 600 or more, and viscosity of the aqueous ink is 5 mPa·s or more.Type: GrantFiled: November 9, 2017Date of Patent: May 7, 2019Assignee: Canon Kabushiki KaishaInventors: Arihiro Saito, Kouhei Nakagawa, Eiichi Nakata, Yoshihide Aikawa
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Publication number: 20190111703Abstract: The ink jet recording method using an ink jet recording apparatus including: a first ink and a second ink; and a recording head including a plurality of recording element substrates in which a first ejection orifice array for ejecting the first ink and a second ejection orifice array for ejecting the second ink are sequentially arranged in a predetermined direction, wherein the plurality of recording element substrates are arranged to be adjacent to each other in a predetermined direction, includes: a recording step of ejecting the ink from the recording head disposed so that an angle formed between the ejection orifice surface of the recording head and the direction of gravity is 0° or more to less than 90° to record an image on the recording medium, wherein a brightness of the first ink is lower than a brightness of the second ink.Type: ApplicationFiled: October 12, 2018Publication date: April 18, 2019Inventors: Kouhei Nakagawa, Minako Kawabe, Yoshihide Aikawa, Hideyuki Saito
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Publication number: 20190111702Abstract: A ink jet recording method, which uses an ink jet recording apparatus including: first and second inks each containing a coloring material; and a recording head having an ejection orifice surface in which a first ejection orifice array for ejecting the first ink and a second ejection orifice array for ejecting the second ink are formed, the first and second ejection orifice arrays being sequentially arranged from the bottom in the direction of gravity to be adjacent to each other and at least partially overlap each other, includes recording, wherein at least one of the first and second inks contains a resin, and a content of the resin in the second ink is smaller than a content of the resin in the first ink.Type: ApplicationFiled: October 12, 2018Publication date: April 18, 2019Inventors: Hideyuki Saito, Kouhei Nakagawa, Yoshihide Aikawa, Minako Kawabe
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Publication number: 20190111704Abstract: The ink jet recording method, which uses an ink jet recording apparatus, including: a first ink and a second ink containing a pigment; and a recording head having an ejection orifice surface in which a first ejection orifice array for ejecting the first ink and a second ejection orifice array for ejecting the second ink are formed, wherein the first ejection orifice array and the second ejection orifice array are sequentially arranged from the bottom in the direction of gravity to be adjacent to each other and arranged to at least partially overlap each other, includes: a recording step, wherein a true specific gravity of the pigment in the first ink is smaller than a true specific gravity of the pigment in the second ink.Type: ApplicationFiled: October 12, 2018Publication date: April 18, 2019Inventors: Minako Kawabe, Kouhei Nakagawa, Hideyuki Saito, Yoshihide Aikawa
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Publication number: 20190111701Abstract: An ink jet recording method, which uses an ink jet recording apparatus including: first and second inks corresponding to aqueous inks containing a pigment; a recording head in which a first ejection orifice array for ejecting the first ink and a second ejection orifice array for ejecting the second ink are sequentially arranged from the bottom in the direction of gravity to be adjacent to each other and the first and second ejection orifice arrays are arranged to at least partially overlap each other; and a cleaning member, includes: recording; and cleaning, wherein at least one of the first and second inks contains a resin, and a content of the resin in the second ink is larger than a content of the resin in the first ink.Type: ApplicationFiled: October 12, 2018Publication date: April 18, 2019Inventors: Yoshihide Aikawa, Minako Kawabe, Hideyuki Saito, Kouhei Nakagawa
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Publication number: 20180134907Abstract: An ink jet recording method includes: performing application of aqueous ink onto a unit area by one relative scanning with a recording head and a recording medium to record an image, wherein the aqueous ink comprises a self-dispersion pigment, a urethane resin, and polyethylene glycol, a kind of the self-dispersion pigment is carbon black, number average molecular weight of the polyethylene glycol is 600 or more, and viscosity of the aqueous ink is 5 mPa·s or more.Type: ApplicationFiled: November 9, 2017Publication date: May 17, 2018Inventors: Arihiro Saito, Kouhei Nakagawa, Eiichi Nakata, Yoshihide Aikawa
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Patent number: 9410038Abstract: There are provided a new compound which has the following general formula (1) and which is useful as a coloring material, an ink containing the compound, an ink cartridge containing the ink and an ink jet recording method including ejecting the ink from a recording head of an ink jet system to record an image on a recording medium.Type: GrantFiled: March 19, 2014Date of Patent: August 9, 2016Assignee: Canon Kabushiki KaishaInventors: Masahiro Suenaga, Kaoru Takahashi, Yasuaki Murai, Takeshi Miyazaki, Yutaka Tani, Masashi Hirose, Ryosuke Nagao, Yoshio Kinoshita, Yoshihide Aikawa
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Publication number: 20140285567Abstract: There are provided a new compound which has the following general formula (1) and which is useful as a coloring material, an ink containing the compound, an ink cartridge containing the ink and an ink jet recording method including ejecting the ink from a recording head of an ink jet system to record an image on a recording medium,Type: ApplicationFiled: March 19, 2014Publication date: September 25, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Masahiro Suenaga, Kaoru Takahashi, Yasuaki Murai, Takeshi Miyazaki, Yutaka Tani, Masashi Hirose, Ryosuke Nagao, Yoshio Kinoshita, Yoshihide Aikawa
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Patent number: 7615113Abstract: It is an object to provide an ink that forms an image which is superior in color developability, has high environmental gas resistance, and further has superior bronze resistance. The ink comprising at least a coloring material is wherein the coloring material comprises a compound represented by a following general formula (I) or a salt thereof; the coloring material comprises a compound represented by a following general formula (I) or a salt thereof; and the maximum absorption wavelengths obtained by measuring an absorbance of a liquid prepared by diluting 2,000 times the ink with 90 mass % of N,N-dimethylformamide aqueous solution are respectively in a range of 580 nm or more and 640 nm or less and in a range of 650 nm or more and 700 nm or less; and a ratio B/A of 0.75 or more and 0.Type: GrantFiled: December 21, 2006Date of Patent: November 10, 2009Assignee: Canon Kabushiki KaishaInventors: Yoshihide Aikawa, Eiichi Nakata, Yojiro Kojima
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Publication number: 20090095199Abstract: It is an object to provide an ink that forms an image which is superior in color developability, has high environmental gas resistance, and further has superior bronze resistance. The ink comprising at least a coloring material is wherein the coloring material comprises a compound represented by a following general formula (I) or a salt thereof; the coloring material comprises a compound represented by a following general formula (I) or a salt thereof; and the maximum absorption wavelengths obtained by measuring an absorbance of a liquid prepared by diluting 2,000 times the ink with 90 mass % of N,N-dimethylformamide aqueous solution are respectively in a range of 580 nm or more and 640 nm or less and in a range of 650 nm or more and 700 nm or less; and a ratio B/A of 0.75 or more and 0.Type: ApplicationFiled: December 21, 2006Publication date: April 16, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Yoshihide Aikawa, Eiichi Nakata, Yojiro Kojima
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Patent number: 7445325Abstract: The present invention aims to provide an ink tank which can elongate the lifetime of ink jet recording apparatus and further stores therein an ink which can achieve superior image characteristics such as image fastness. The present invention provides an ink tank which includes an ink storage portion storing an aqueous ink therein, having fine channels which retain the aqueous ink by capillary force, wherein the aqueous ink includes at least water and a water-soluble coloring material, and further includes a compound satisfying specific requirements.Type: GrantFiled: January 31, 2006Date of Patent: November 4, 2008Assignee: Canon Kabushiki KaishaInventors: Yoshihide Aikawa, Kuniaki Fujimoto, Sadayuki Sugama