Patents by Inventor Keiji IIDA
Keiji IIDA 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: 11718100Abstract: A non-aqueous ink jet ink composition is provided that can form an image having excellent weather resistance, abrasion resistance, and coloring property. The non-aqueous ink jet ink composition includes a cyclic ester compound, at least one first solvent represented by the following General Formula (1) and having a flash point of 140° C. or lower: R1O—(R2O)m—R3, a second solvent represented by the General Formula (1), and C.I. Pigment Orange-43 (PO-43) as a pigment. In the at least one first solvent represented by General Formula (1), R1 and R3 each independently represent hydrogen or an alkyl group having 1 to 5 carbon atoms, R2 represents an alkylene group having 2 or 3 carbon atoms, and m represents an integer of 2 to 6. The second solvent represented by General Formula (1) includes a glycol monoether compound in which at least one of R1 and R3 is hydrogen. A volume average particle diameter of the PO-43 is 100 nm or more and 400 nm or less.Type: GrantFiled: January 6, 2021Date of Patent: August 8, 2023Inventors: Keiji Iida, Kenichiro Kubota, Naoki Koike, Jun Ito, Makoto Nagase
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Publication number: 20230191091Abstract: A balloon catheter includes a shaft having a first shaft portion and a second shaft portion located on a proximal side of the first shaft portion, and a balloon covering and joined to the second shaft portion. The first shaft portion is more flexible than the second shaft portion and has a length in an axial direction of 1.5 cm or more.Type: ApplicationFiled: January 24, 2023Publication date: June 22, 2023Applicant: ASAHI INTECC CO., LTD.Inventors: Shota ENDO, Keiji IIDA
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Publication number: 20210122166Abstract: A non-aqueous ink jet ink composition is provided that can form an image having excellent weather resistance, abrasion resistance, and coloring property. The non-aqueous ink jet ink composition includes a cyclic ester compound, at least one first solvent represented by the following General Formula (1) and having a flash point of 140° C. or lower: R1O—(R2O)m—R3, a second solvent represented by the General Formula (1), and C.I. Pigment Orange-43 (PO-43) as a pigment. In the at least one first solvent represented by General Formula (1), R1 and R3 each independently represent hydrogen or an alkyl group having 1 to 5 carbon atoms, R2 represents an alkylene group having 2 or 3 carbon atoms, and m represents an integer of 2 to 6. The second solvent represented by General Formula (1) includes a glycol monoether compound in which at least one of R1 and R3 is hydrogen. A volume average particle diameter of the PO-43 is 100 nm or more and 400 nm or less.Type: ApplicationFiled: January 6, 2021Publication date: April 29, 2021Inventors: Keiji IIDA, Kenichiro KUBOTA, Naoki KOIKE, Jun ITO, Makoto NAGASE
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Patent number: 10919311Abstract: An ink jet ink composition is provided that can form an image having excellent weather resistance, abrasion resistance, and coloring property. The non-aqueous ink jet ink composition includes at least one solvent represented by R1O—(R2O)m—R3 and having a flash point of 140° C. or lower and C.I. Pigment Orange-43 (PO-43) as a pigment, wherein R1 and R3 each independently represent hydrogen or an alkyl group having 1 to 5 carbon atoms, R2 represents an alkylene group having 2 or 3 carbon atoms, and m represents an integer of 2 to 6.Type: GrantFiled: January 25, 2016Date of Patent: February 16, 2021Inventors: Keiji Iida, Kenichiro Kubota, Naoki Koike, Jun Ito, Makoto Nagase
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Patent number: 10821741Abstract: An ink composition includes a solvent containing at least one compound represented by the following general formula (1): R1O—(R2O)m—R3??(1) wherein R1 and R3 each independently represent a hydrogen or an alkyl group having from 1 to 4 carbon atoms, R2 represents an alkylene group having 2 or 3 carbon atoms, and m represents an integer of 2 or 3; and a pigment containing Pigment Orange-43 (PO-43) having a volume average particle size of 100 nm or more and 400 nm or less.Type: GrantFiled: October 23, 2015Date of Patent: November 3, 2020Assignee: Seiko Epson CorporationInventors: Naoki Koike, Keiji Iida, Jun Ito, Kenichiro Kubota, Makoto Nagase
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Patent number: 10781327Abstract: An ink jet ink composition is provided that can form an image having excellent weather resistance, abrasion resistance, and coloring property. The non-aqueous ink jet ink composition includes a solvent containing at least one cyclic ester compound; and C.I. Pigment Orange-43 (PO-43) as a pigment.Type: GrantFiled: January 22, 2016Date of Patent: September 22, 2020Assignee: Seiko Epson CorporationInventors: Kenichiro Kubota, Naoki Koike, Keiji Iida, Jun Ito, Shugo Hattori
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Patent number: 10479103Abstract: An aqueous ink composition contains: an alkanediol having a normal boiling point of 240° C. or higher; polyoxyethylene mono(2-ethylhexyl) ether having a carbon number of 14 or more and 22 or less; and water, in which a content of the polyoxyethylene mono(2-ethylhexyl) ether having a carbon number of 14 or more and 22 or less is 0.4% by mass or lower based on the total amount of the aqueous ink composition.Type: GrantFiled: March 8, 2018Date of Patent: November 19, 2019Assignee: Seiko Epson CorporationInventors: Keiji Iida, Tomohito Nakano, Keisuke Morita
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Patent number: 10400124Abstract: An ink composition set has at least a solvent-based orange ink composition containing an orange pigment as a pigment and a solvent and a solvent-based red ink composition containing a red pigment as a pigment and a solvent.Type: GrantFiled: January 19, 2017Date of Patent: September 3, 2019Assignee: Seiko Epson CorporationInventors: Kenichiro Kubota, Makoto Nagase, Jun Ito, Naoki Koike, Keiji Iida
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Publication number: 20180273783Abstract: An aqueous ink composition contains: an alkanediol having a normal boiling point of 240° C. or higher; polyoxyethylene mono(2-ethylhexyl) ether having a carbon number of 14 or more and 22 or less; and water, in which a content of the polyoxyethylene mono(2-ethylhexyl) ether having a carbon number of 14 or more and 22 or less is 0.4% by mass or lower based on the total amount of the aqueous ink composition.Type: ApplicationFiled: March 8, 2018Publication date: September 27, 2018Inventors: Keiji IIDA, Tomohito NAKANO, Keisuke MORITA
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Publication number: 20180155562Abstract: An inkjet recording ink is used for an inkjet recording device that includes a silicone rubber having a solubility parameter at 25° C. of 6 to 8 as a member with which an ink comes in contact, the inkjet recording ink including water, a disperse dye, and an anionic surfactant, the content X (mass %) of the disperse dye and the content Y (mass %) of the anionic surfactant in the inkjet recording ink satisfying the relationship “Y/X?0.7”.Type: ApplicationFiled: January 19, 2018Publication date: June 7, 2018Applicant: Seiko Epson CorporationInventors: Kenichi Numakura, Keiji Iida, Yasunari Ikeda, Hiroshi Takahashi, Shinichi Naito
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Publication number: 20180057701Abstract: An ink jet ink composition is provided that can form an image having excellent weather resistance, abrasion resistance, and coloring property. The non-aqueous ink jet ink composition includes a solvent containing at least one cyclic ester compound; and C.I. Pigment Orange-43 (PO-43) as a pigment.Type: ApplicationFiled: January 22, 2016Publication date: March 1, 2018Applicant: Seiko Epson CorporationInventors: Kenichiro KUBOTA, Naoki KOIKE, Keiji IIDA, Jun ITO, Shugo HATTORI
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Patent number: 9889660Abstract: An ink jet recording method including causing ink to adhere to a recording medium by ejecting an ink composition using a print head provided with a nozzle, a pressure chamber, and a connection portion which connects the pressure chamber and the nozzle to each other at a length of 500 ?m or more, in which the ink composition includes a coloring material and a solvent represented by General Formula (1) below at 30 mass % or more with respect to a total mass of the ink composition, R1O—(R2O)n—R3??(1) (in General Formula (1), R1 and R3 each independently represent a hydrogen or an alkyl group with 1 to 5 carbon atoms and at least one of R1 and R3 is an alkyl group with 1 to 5 carbon atoms, R2 represents an alkylene group with 2 to 4 carbon atoms, and n represents an integer of 1 to 6).Type: GrantFiled: November 21, 2016Date of Patent: February 13, 2018Assignee: Seiko Epson CorporationInventors: Jun Ito, Kenichiro Kubota, Naoki Koike, Keiji Iida
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Publication number: 20180037761Abstract: An ink jet ink composition is provided that can form an image having excellent weather resistance, abrasion resistance, and coloring property. The non-aqueous ink jet ink composition includes at least one solvent represented by R1O—(R2O)m—R3 and having a flash point of 140° C. or lower and C.I. Pigment Orange-43 (PO-43) as a pigment, wherein R1 and R3 each independently represent hydrogen or an alkyl group having 1 to 5 carbon atoms, R2 represents an alkylene group having 2 or 3 carbon atoms, and m represents an integer of 2 to 6.Type: ApplicationFiled: January 25, 2016Publication date: February 8, 2018Inventors: Keiji IIDA, Kenichiro KUBOTA, Naoki KOIKE, Jun ITO, Makoto NAGASE
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Patent number: 9868287Abstract: Provided is a method for maintaining an ink jet recording apparatus according to the invention in an ink jet recording apparatus which performs recording using a solvent-based ink composition which includes at least one type of organic solvent selected from a group consisting of an ester-based solvent, a hydrocarbon-based solvent, and an alcohol-based solvent, the method including wiping a nozzle forming member, in which nozzles of a head which discharges the solvent-based ink composition are formed, using an impregnation solution and a wiping member with liquid absorbency, in which the impregnation solution contains at least one type of organic solvent selected from a group consisting of a compound which is represented by General Formula (1) below, esters, and dibasic acid esters, R1—O—(R2—O)n—R3??(1) (in General Formula (1) described above, R1 represents a hydrogen atom, an aryl group, or an alkyl group with 1 to 6 carbon atoms, R2 represents an alkylene group with 2 to 4 carbon atoms, R3 represents an arType: GrantFiled: March 9, 2016Date of Patent: January 16, 2018Assignee: Seiko Epson CorporationInventors: Jun Ito, Makoto Nagase, Kenichiro Kubota, Naoki Koike, Keiji Iida
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Patent number: 9758685Abstract: A nonaqueous ink jet ink composition according to the invention includes a solvent including at least one compound represented by the following formula (1), and a pigment including a pigment orange 43 (PO-43), in which a Na amount included in the ink is 5 ppm to 500 ppm. R1O—(R2O)m—R3??(1) (wherein, in formula (1), R1 and R3 each independently represent hydrogen or an alkyl group having 1 to 5 carbon atoms. However, either R1 or R3 is an alkyl group having 1 to 5 carbon atoms. R2 represents an alkylene group having 2 or 3 carbon atoms. m represents an integer of 1 to 6.Type: GrantFiled: December 14, 2015Date of Patent: September 12, 2017Assignee: Seiko Epson CorporationInventors: Jun Ito, Keiji Iida, Kenichiro Kubota, Naoki Koike, Makoto Nagase
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Patent number: 9725610Abstract: A non-aqueous ink composition for ink jet recording includes a pigment, a compound represented by General formula 1 below, and a phthalocyanine derivative provided with a polar group not having an amine structure, as a pigment dispersant for dispersing the pigment. The pigment is carbon black. The composition further includes an alkylene glycol monoalkyl ether: (wherein R1 indicates an alkyl group of 1 to 4 carbon atoms, and R2 and R3 each independently indicate a methyl group or an ethyl group).Type: GrantFiled: January 29, 2015Date of Patent: August 8, 2017Assignee: Seiko Epson CorporationInventors: Keiji Iida, Makoto Nagase, Kenichiro Kubota, Akihito Sao
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Publication number: 20170218216Abstract: An ink composition set has at least a solvent-based orange ink composition containing an orange pigment as a pigment and a solvent and a solvent-based red ink composition containing a red pigment as a pigment and a solvent.Type: ApplicationFiled: January 19, 2017Publication date: August 3, 2017Inventors: Kenichiro KUBOTA, Makoto NAGASE, Jun ITO, Naoki KOIKE, Keiji IIDA
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Publication number: 20170165966Abstract: An ink jet recording method including causing ink to adhere to a recording medium by ejecting an ink composition using a print head provided with a nozzle, a pressure chamber, and a connection portion which connects the pressure chamber and the nozzle to each other at a length of 500 ?m or more, in which the ink composition includes a coloring material and a solvent represented by General Formula (1) below at 30 mass % or more with respect to a total mass of the ink composition, R1O—(R2O)n—R3??(1) (in General Formula (1), R1 and R3 each independently represent a hydrogen or an alkyl group with 1 to 5 carbon atoms and at least one of R1 and R3 is an alkyl group with 1 to 5 carbon atoms, R2 represents an alkylene group with 2 to 4 carbon atoms, and n represents an integer of 1 to 6).Type: ApplicationFiled: November 21, 2016Publication date: June 15, 2017Inventors: Jun ITO, Kenichiro KUBOTA, Naoki KOIKE, Keiji IIDA
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Publication number: 20160263899Abstract: Provided is a method for maintaining an ink jet recording apparatus according to the invention in an ink jet recording apparatus which performs recording using a solvent-based ink composition which includes at least one type of organic solvent selected from a group consisting of an ester-based solvent, a hydrocarbon-based solvent, and an alcohol-based solvent, the method including wiping a nozzle forming member, in which nozzles of a head which discharges the solvent-based ink composition are formed, using an impregnation solution and a wiping member with liquid absorbency, in which the impregnation solution contains at least one type of organic solvent selected from a group consisting of a compound which is represented by General Formula (1) below, esters, and dibasic acid esters, R1—O—(R2—O)n—R3??(1) (in General Formula (1) described above, R1 represents a hydrogen atom, an aryl group, or an alkyl group with 1 to 6 carbon atoms, R2 represents an alkylene group with 2 to 4 carbon atoms, R3 represents an aType: ApplicationFiled: March 9, 2016Publication date: September 15, 2016Inventors: Jun ITO, Makoto NAGASE, Kenichiro KUBOTA, Naoki KOIKE, Keiji IIDA
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Patent number: D829897Type: GrantFiled: June 2, 2017Date of Patent: October 2, 2018Assignee: ASAHI INTECC CO., LTD.Inventor: Keiji Iida