Patents by Inventor Makoto Nagase

Makoto Nagase 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).

  • Patent number: 11718100
    Abstract: 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: Grant
    Filed: January 6, 2021
    Date of Patent: August 8, 2023
    Inventors: Keiji Iida, Kenichiro Kubota, Naoki Koike, Jun Ito, Makoto Nagase
  • Publication number: 20210122166
    Abstract: 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: Application
    Filed: January 6, 2021
    Publication date: April 29, 2021
    Inventors: Keiji IIDA, Kenichiro KUBOTA, Naoki KOIKE, Jun ITO, Makoto NAGASE
  • Patent number: 10919311
    Abstract: 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: Grant
    Filed: January 25, 2016
    Date of Patent: February 16, 2021
    Inventors: Keiji Iida, Kenichiro Kubota, Naoki Koike, Jun Ito, Makoto Nagase
  • Patent number: 10821741
    Abstract: 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: Grant
    Filed: October 23, 2015
    Date of Patent: November 3, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Naoki Koike, Keiji Iida, Jun Ito, Kenichiro Kubota, Makoto Nagase
  • Patent number: 10676626
    Abstract: An ink jet textile printing ink composition includes water; a color material; and a metal chelating agent. In the ink composition described above, the metal chelating agent includes at least one selected from methyl glycine diacetic acid, L-glutamate diacetic acid, L-aspartic diacetic acid, hydroxyethylimino diacetic acid, 3-hydroxy-2,2?-iminodisuccucinic acid, dicarboxymethyl glutamic acid, (S,S)-ethylenediaminedisuccinic acid, and salts thereof, and the pH of the ink composition is 6 to 10.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: June 9, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Hiroko Hayashi, Tetsuya Aoyama, Makoto Nagase
  • Publication number: 20200030164
    Abstract: A securing member is provided with a first, second, and third strip member, and the strip members are folded and laminated. The first strip member has a strip-shaped first substrate layer and a first adhesive layer provided on a first surface of the first substrate layer; the second strip member has a strip-shaped second substrate layer positioned between the first and third strip members, and a third adhesive layer provided on a first surface of the second substrate layer; and the third strip member has a strip-shaped third substrate layer and a third adhesive layer provided on a first surface of the third substrate layer. A portion of the first adhesive layer is detachably adhered to a second surface of the second substrate layer; a portion of the second adhesive layer is detachably adhered to a second surface of the third substrate layer; and the second substrate layer has elasticity.
    Type: Application
    Filed: January 26, 2018
    Publication date: January 30, 2020
    Inventors: Yoshihisa Matsuda, Hirofumi Hosokawa, Kioshi Kunihiro, Makoto Nagase, Hiroyasu Nagata, Masashi Sonoda
  • Patent number: 10400124
    Abstract: 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: Grant
    Filed: January 19, 2017
    Date of Patent: September 3, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Kenichiro Kubota, Makoto Nagase, Jun Ito, Naoki Koike, Keiji Iida
  • Patent number: 9963606
    Abstract: A non-aqueous ink jet ink composition contains a white pigment having an average particle diameter of 200 nm or more and 400 nm or less, glycol diether represented by the following formula 1 and having a flash point of 70° C. or less, and glycol monoether represented by the following formula 2: R1O—(R2O)m—R3??Formula 1: (In Formula 1, R1 and R3 each independently represent alkyl groups having 1 to 4 carbon atoms, R2 each independently represents alkylene groups having 2 to 3 carbon atoms, and m is an integer of 1 to 4.); and HO—(R4O)n—R5??Formula 2: (In Formula 2, R4 each independently represents alkylene groups having 2 to 3 carbon atoms, R5 is an alkyl group having 1 to 4 carbon atoms, and n is an integer of 1 to 4.).
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: May 8, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Naoki Koike, Jun Ito, Kenichiro Kubota, Makoto Nagase
  • Publication number: 20180086929
    Abstract: An ink jet textile printing ink composition includes water; a color material; and a metal chelating agent. In the ink composition described above, the metal chelating agent includes at least one selected from methyl glycine diacetic acid, L-glutamate diacetic acid, L-aspartic diacetic acid, hydroxyethylimino diacetic acid, 3-hydroxy-2,2?-iminodisuccucinic acid, dicarboxymethyl glutamic acid, (S,S)-ethylenediaminedisuccinic acid, and salts thereof, and the pH of the ink composition is 6 to 10.
    Type: Application
    Filed: September 26, 2017
    Publication date: March 29, 2018
    Inventors: Hiroko HAYASHI, Tetsuya AOYAMA, Makoto NAGASE
  • Publication number: 20180080115
    Abstract: There is provided an adhesion restraint method of a radionuclide to a carbon steel material of an atomic energy plant, in which an adhesion restraint effect of the radionuclide to the carbon steel material can continue for a longer term. A film forming apparatus is connected to a carbon steel purification system pipe of a BWR plant. A nickel formate aqueous solution and hydrazine are injected into a circulation pipe of the film forming apparatus. An aqueous solution including nickel formate and hydrazine is guided into a purification system pipe subjected to chemical decontamination, and a nickel metal film is formed on an inner surface of the pipe. A platinum ion aqueous solution and hydrazine are injected into the circulation pipe, and an aqueous solution including a platinum ion and hydrazine is supplied to the purification system pipe so as to adhere platinum to the surface of a nickel metal film. The film forming apparatus is detached from the purification system pipe, and the BWR plant is started.
    Type: Application
    Filed: August 7, 2017
    Publication date: March 22, 2018
    Inventors: Tsuyoshi ITOU, Hideyuki HOSOKAWA, Nobuyuki OOTA, Satoshi OOUCHI, Shintarou YANAGISAWA, Mizuho TSUYUKI, Makoto NAGASE, Kazushige ISHIDA, Toru KAWASAKI
  • Patent number: 9919520
    Abstract: An ink jet recording method according to the invention includes: ejecting droplets of non-water-based ink, which contains an organic solvent, a color material, and resin, from nozzles of a recording head and causing the droplets to adhere to a recording medium to form an image; and preliminarily ejecting the droplets of the non-water-based-ink from the nozzles of the recording head not for forming the image. In the preliminary ejecting of the droplets, a time interval at which the preliminary ejecting is performed by a predetermined nozzle is equal to or greater than two seconds and equal to or less than twenty five seconds. The organic solvent contains a first solvent which is at least one kind selected from a hydrocarbon-based solvent, an alcohol-based solvent, and an ester-based solvent. Content of the first solvent is equal to or greater than 40% by mass with respect to entire content of the non-water-based ink.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: March 20, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Makoto Nagase, Akihito Sao, Kenichiro Kubota, Jun Ito, Naoki Koike
  • Publication number: 20180037761
    Abstract: 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: Application
    Filed: January 25, 2016
    Publication date: February 8, 2018
    Inventors: Keiji IIDA, Kenichiro KUBOTA, Naoki KOIKE, Jun ITO, Makoto NAGASE
  • Patent number: 9868287
    Abstract: 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 ar
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: January 16, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Jun Ito, Makoto Nagase, Kenichiro Kubota, Naoki Koike, Keiji Iida
  • Patent number: 9758685
    Abstract: 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: Grant
    Filed: December 14, 2015
    Date of Patent: September 12, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Jun Ito, Keiji Iida, Kenichiro Kubota, Naoki Koike, Makoto Nagase
  • Patent number: 9758686
    Abstract: A solvent-based ink jet ink composition includes a coloring material; and a solvent; in which the composition includes, as the solvent, two or more types of solvent that are compounds represented by the following general formula (1), and R1, R2, and R3 have the same structure as one another and m are consecutive integers, in the solvent. R1O—(R2O)m—R3??(1) (in the formula, R1 is a hydrogen atom or an alkyl group with 1 to 6 carbon atoms, R2 is an alkylene group with 2 or 3 carbon atoms, and R3 is a hydrogen atom, an acetyl group, or an alkyl group with 1 to 4 carbon atoms. However, both of R1 and R3 are not hydrogen atoms. m is an integer of 1 to 7).
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: September 12, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Makoto Nagase, Kenichiro Kubota, Jun Ito, Naoki Koike
  • Patent number: 9725610
    Abstract: 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: Grant
    Filed: January 29, 2015
    Date of Patent: August 8, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Keiji Iida, Makoto Nagase, Kenichiro Kubota, Akihito Sao
  • Publication number: 20170218216
    Abstract: 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: Application
    Filed: January 19, 2017
    Publication date: August 3, 2017
    Inventors: Kenichiro KUBOTA, Makoto NAGASE, Jun ITO, Naoki KOIKE, Keiji IIDA
  • Patent number: 9534129
    Abstract: A non-aqueous ink jet ink composition contains a glitter pigment, glycol diether represented by the following formula 1 and having a flash point of 70° C. or less, and glycol monoether represented by the following formula 2: R1O—(R2O)m—R3??Formula 1: (In Formula 1, R1 and R3 each independently represent alkyl groups having 1 to 4 carbon atoms, R2 each independently represents alkylene groups having 2 to 3 carbon atoms, and m is an integer of 1 to 4.); and HO—(R4O)n—R5??Formula 2: (In Formula 2, R4 each independently represents alkylene groups having 2 to 3 carbon atoms, R5 is an alkyl group having 1 to 4 carbon atoms, and n is an integer of 1 to 4.).
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: January 3, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Naoki Koike, Jun Ito, Kenichiro Kubota, Makoto Nagase
  • Publication number: 20160263899
    Abstract: 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 a
    Type: Application
    Filed: March 9, 2016
    Publication date: September 15, 2016
    Inventors: Jun ITO, Makoto NAGASE, Kenichiro KUBOTA, Naoki KOIKE, Keiji IIDA
  • Publication number: 20160264805
    Abstract: A solvent-based ink jet ink composition includes a pigment, a solvent a that is a cyclic ester; and a solvent b with a lower dissolving power of polyvinyl chloride than the solvent a, in which a content of the solvent a is 1.0 to 7.0 mass %, and a content of the solvent b is 10 parts by mass or more to one part by mass of the content of the solvent a.
    Type: Application
    Filed: March 9, 2016
    Publication date: September 15, 2016
    Inventors: Makoto NAGASE, Kenichiro KUBOTA, Jun ITO, Naoki KOIKE, Shugo HATTORI