Patents by Inventor Keisuke Yuhara
Keisuke Yuhara 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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Patent number: 11041085Abstract: There is provided an ink set usable for forming an image on a recording medium which is fabric or recording paper, the ink set including: a water-based ink for ink-jet recording including a pigment, a first resin and water; and a treatment agent including a second resin and the water. The ink set satisfies the following conditions (1) to (3): condition (1): 0.9?(B+C)/A; condition (2): 3?A?9; condition (3): B<9. In the conditions (1) to (3), A: a blending amount (% by weight) of the pigment in an entire amount of the water-based ink; B: a blending amount (% by weight) of the first resin in the entire amount of the water-based ink; and C: a blending amount (% by weight) of the second resin in an entire amount of the treatment agent.Type: GrantFiled: October 15, 2018Date of Patent: June 22, 2021Assignee: Brother Kogyo Kabushiki KaishaInventors: Keisuke Yuhara, Yasuhiro Taga, Mitsunori Maeda, Shinpei Ito
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Patent number: 11001964Abstract: There is provided a treatment agent applicable to a recording surface of a recording medium which is recording paper or fabric. The treatment agent contains: a non-cationic sizing agent; and at least one cationic substance which is selected from the group consisting of: a cationic polymer capable of forming a flexible film in a case that the cationic polymer is dried, a cationic surfactant, a polyvalent metal salt and a polyvalent metal ion.Type: GrantFiled: August 9, 2018Date of Patent: May 11, 2021Assignee: Brother Kogyo Kabushiki KaishaInventors: Yasuhiro Taga, Keisuke Yuhara, Mitsunori Maeda, Shinpei Ito
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Publication number: 20210009833Abstract: A water-based ink for ink-jet recording includes: a solid solution of a quinacridone pigment including C.I. Pigment Violet 19 and C.I. Pigment Red 122; an azo pigment including C.I. Pigment Red 176; and water.Type: ApplicationFiled: July 10, 2020Publication date: January 14, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Mitsunori MAEDA, Yuka TSUZAKA, Keisuke YUHARA
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Publication number: 20210009828Abstract: A water-based ink for ink-jet recording, includes: a solid solution of a quinacridone pigment including C.I. Pigment Violet 19 and C.I. Pigment Red 202, an azo pigment including C.I. Pigment Red 150, and water.Type: ApplicationFiled: July 10, 2020Publication date: January 14, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Mitsunori MAEDA, Yuka TSUZAKA, Keisuke YUHARA
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Publication number: 20210009830Abstract: A water-based ink for ink-jet recording includes: water; a solid solution pigment composed of at least a first pigment and a second pigment; and a non-solid solution pigment which is the same as the first pigment. An image L*60 of the first pigment has the highest chromaticness C* among those of pigments composing the solid solution pigment, the image L*60 having lightness L* which is closest to 60 among a plurality of solid images recorded on a recording paper by using one of aqueous dispersions containing the pigments composing the solid solution pigment at a same solid content concentration, respectively, while changing recording duty at every 5% in a range of 0% to 100%.Type: ApplicationFiled: July 10, 2020Publication date: January 14, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yuka TSUZAKA, Mitsunori MAEDA, Keisuke YUHARA
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Patent number: 10766275Abstract: An image forming method uses an apparatus for forming an image on both recording media of fabric and recording paper. The image forming method includes: applying a treatment agent to the fabric, the treatment agent coagulating a water-based ink or increasing viscosity of the water-based ink; and discharging the water-based ink onto the fabric by an ink-jet system, the water-based ink being identical to a water-based ink used for forming the image on the recording paper.Type: GrantFiled: January 15, 2020Date of Patent: September 8, 2020Assignee: Brother Kogyo Kabushiki KaishaInventors: Yasuhiro Taga, Keisuke Yuhara, Mitsunori Maeda, Shinpei Ito
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Publication number: 20200207123Abstract: An image forming method uses an apparatus for forming an image on both recording media of fabric and recording paper. The image forming method includes: applying a treatment agent to the fabric, the treatment agent coagulating a water-based ink or increasing viscosity of the water-based ink; and discharging the water-based ink onto the fabric by an ink-jet system, the water-based ink being identical to a water-based ink used for forming the image on the recording paper.Type: ApplicationFiled: January 15, 2020Publication date: July 2, 2020Inventors: Yasuhiro Taga, Keisuke Yuhara, Mitsunori Maeda, Shinpei Ito
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Patent number: 10619064Abstract: A water-based achromatic ink for ink-jet recording includes: a dye; benzotriazole; a water-soluble polymer having an acid value of equal to or more than 70 mgKOH/g of which blending amount in the water-based achromatic ink is equal to or less than 2% by weight; and water.Type: GrantFiled: March 23, 2018Date of Patent: April 14, 2020Assignee: Brother Kogyo Kabushiki KaishaInventor: Keisuke Yuhara
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Patent number: 10569569Abstract: An image forming method uses an apparatus for forming an image on both recording media of fabric and recording paper. The image forming method includes: applying a treatment agent to the fabric, the treatment agent coagulating a water-based ink or increasing viscosity of the water-based ink; and discharging the water-based ink onto the fabric by an ink-jet system, the water-based ink being identical to a water-based ink used for forming the image on the recording paper.Type: GrantFiled: March 27, 2018Date of Patent: February 25, 2020Assignee: Brother Kogyo Kabushiki KaishaInventors: Yasuhiro Taga, Keisuke Yuhara, Mitsunori Maeda, Shinpei Ito
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Patent number: 10493775Abstract: There is provided an image forming method for forming an image on a recording medium which is fabric or recording paper by using an ink set including an ink and a treatment agent. In a case that the recording medium is the fabric, the image forming method includes: applying the treatment agent, which includes a cationic substance and a water-soluble organic solvent, to the fabric in an application amount of the treatment agent per an area of the fabric in a range of 4.7 mg/cm2 to 34 mg/cm2; drying the applied treatment agent and thereby reducing weight of the treatment agent in the fabric to be not more than 50% of the application amount of the treatment agent; and jetting the ink, which includes an anionic dye and a water-soluble organic solvent, onto the fabric by an ink-jet system.Type: GrantFiled: October 15, 2018Date of Patent: December 3, 2019Assignee: Brother Kogyo Kabushiki KaishaInventors: Shinpei Ito, Yasuhiro Taga, Keisuke Yuhara, Mitsunori Maeda
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Publication number: 20190112493Abstract: There is provided an ink set usable for forming an image on a recording medium which is fabric or recording paper, the ink set including: a water-based ink for ink-jet recording including a pigment, a first resin and water; and a treatment agent including a second resin and the water. The ink set satisfies the following conditions (1) to (3): condition (1): 0.9?(B+C)/A; condition (2): 3?A?9; condition (3): B<9. In the conditions (1) to (3), A: a blending amount (% by weight) of the pigment in an entire amount of the water-based ink; B: a blending amount (% by weight) of the first resin in the entire amount of the water-based ink; and C: a blending amount (% by weight) of the second resin in an entire amount of the treatment agent.Type: ApplicationFiled: October 15, 2018Publication date: April 18, 2019Inventors: Keisuke Yuhara, Yasuhiro Taga, Mitsunori Maeda, Shinpei Ito
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Publication number: 20190111708Abstract: There is provided an image forming method for forming an image on a recording medium which is fabric or recording paper by using an ink set including an ink and a treatment agent. In a case that the recording medium is the fabric, the image forming method includes: applying the treatment agent, which includes a cationic substance and a water-soluble organic solvent, to the fabric in an application amount of the treatment agent per an area of the fabric in a range of 4.7 mg/cm2 to 34 mg/cm2; drying the applied treatment agent and thereby reducing weight of the treatment agent in the fabric to be not more than 50% of the application amount of the treatment agent; and jetting the ink, which includes an anionic dye and a water-soluble organic solvent, onto the fabric by an ink-jet system.Type: ApplicationFiled: October 15, 2018Publication date: April 18, 2019Inventors: Shinpei Ito, Yasuhiro Taga, Keisuke Yuhara, Mitsunori Maeda
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Publication number: 20190100037Abstract: An image forming method uses an apparatus for forming an image on both recording media of fabric and recording paper. The image forming method includes: applying a treatment agent to the fabric, the treatment agent coagulating a water-based ink or increasing viscosity of the water-based ink; and discharging the water-based ink onto the fabric by an ink-jet system, the water-based ink being identical to a water-based ink used for forming the image on the recording paper.Type: ApplicationFiled: March 27, 2018Publication date: April 4, 2019Inventors: Yasuhiro Taga, Keisuke Yuhara, Mitsunori Maeda, Shinpei Ito
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Publication number: 20190100871Abstract: There is provided a treatment agent applicable to a recording surface of a recording medium which is recording paper or fabric. The treatment agent contains: a non-cationic sizing agent; and at least one cationic substance which is selected from the group consisting of: a cationic polymer capable of forming a flexible film in a case that the cationic polymer is dried, a cationic surfactant, a polyvalent metal salt and a polyvalent metal ion.Type: ApplicationFiled: August 9, 2018Publication date: April 4, 2019Inventors: Yasuhiro Taga, Keisuke Yuhara, Mitsunori Maeda, Shinpei Ito
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Publication number: 20180340087Abstract: A water-based achromatic ink for ink-jet recording includes: a dye; benzotriazole; a water-soluble polymer having an acid value of equal to or more than 70 mgKOH/g of which blending amount in the water-based achromatic ink is equal to or less than 2% by weight; and water.Type: ApplicationFiled: March 23, 2018Publication date: November 29, 2018Inventor: Keisuke Yuhara