Patents by Inventor Masaki Hosaka
Masaki Hosaka 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: 20240076514Abstract: A task to be achieved by the present invention is to provide a method for producing a printed matter. The ink has excellent adhesion to an ink unabsorbent or non-absorbent recording medium, such as a resin film or coated paper, which is unlikely to absorb a solvent contained in an ink, and excellent setting property. The present invention is directed to a method for producing a printed matter, using an ink including a binder (A) having a carbonyl group, a compound (B) having a structure capable of reacting with the carbonyl group, and an aqueous medium in which the binder (A) and the compound (B) are dissolved or dispersed.Type: ApplicationFiled: November 3, 2023Publication date: March 7, 2024Applicant: DIC CorporationInventors: Maiko Kitade, Yoshinosuke Shimamura, Masaki Hosaka
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Publication number: 20230312948Abstract: The issue of the present invention is to provide a disazo pigment in which the polychlorinated biphenyl (PCB) content in addition to the primary aromatic amine (PAA) content is reduced. The present invention provides a pigment composition containing a disazo pigment, an alkylamine that has an alkyl group having a carbon number of 8 or more, and a poly(oxyethylene) alkyl ester that has an alkyl group having a carbon number of 8 or more. Preferably, the disazo pigment includes at least one disazo pigment selected from a group consisting of C.I. Pigment Yellow 83, C.I. Pigment Yellow 13, and C.I. Pigment Yellow 14.Type: ApplicationFiled: June 28, 2020Publication date: October 5, 2023Applicant: DIC CorporationInventors: Shumei Ji, Issei Masuko, Masaki Hosaka, Kyoichi Okada, Nagatoshi Kobayashi, Xiyang Liao, Wei Zhao
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Publication number: 20230257588Abstract: The issue of the present invention is to provide a disazo pigment with high safety in which the content of chemical substances that may be harmful, in particular, in the food packaging field and the like and that may be regulated substances is reduced. A disazo pigment according to the present invention has a polychlorinated biphenyl content of less than 15 ppm and a primary aromatic amine content of less than 700 ppm. Preferably, the disazo pigment is at least one selected from a group consisting of C.I. Pigment Yellow 83, C.I. Pigment Yellow 13, and Cl. Pigment Yellow 14.Type: ApplicationFiled: June 28, 2020Publication date: August 17, 2023Applicant: DIC CorporationInventors: Shumei Ji, Issei Masuko, Masaki Hosaka, Kyoichi Okada, Nagatoshi Kobayashi, Xiyang Liao, Wei Zhao
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Publication number: 20230095111Abstract: The aqueous pigment dispersion for IJ inks has excellent dispersion quality as well as high color strength and light fastness and is particularly suited for use as an U aqueous pigment ink. It includes C.I. Pigment Yellow 180, a block copolymer having an acid value of 10 or more and 20 or less and an amine value of 20 or less, and water. The present invention also provides C.I. Pigment Yellow 180 having an aspect ratio of 1.0 to 2.0, a primary particle shorter diameter of 30 to 100 nm, and a crystallite size of 15.0 nm or more as calculated from the Scherrer equation based on the full width at half maximum of a peak A indicated by a maximum diffraction intensity at a diffraction angle 2?=6.7±0.50 in a powder X-ray diffraction pattern of diffraction intensities versus 2? measured using CuK? radiation.Type: ApplicationFiled: January 28, 2021Publication date: March 30, 2023Applicant: DIC CorporationInventors: Issei Masuko, Masaaki Tanaka, Masaki Hosaka, Shingo Saitou, Miyuki Morishita
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Publication number: 20220410286Abstract: When forming a first preliminary flute on a PCD layer of a columnar body, electrical discharge machining is performed by setting the electrode orientation so that the first twist angle is ?. Next, when forming a second preliminary flute on a substrate of the columnar body and a round bar, the grinding process is performed by setting the grinding orientation and direction for a diamond whetstone so that a second twist angle is larger than the first twist angle.Type: ApplicationFiled: August 31, 2022Publication date: December 29, 2022Inventors: Hiroyuki Fukushima, Junya Onose, Yuu Igarashi, Akihiro Osawa, Masaki Hosaka, Tomoya Kuroda
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Patent number: 11518898Abstract: The problem to be solved by the present invention is to provide an ink set that enables forming a printed article with reduced bleeding and color mixing. The present invention is an ink set that includes a black pigment ink (a) having a static surface tension (a1) of 20 mN/m to 40 mN/m and at least one pigment ink (b) selected from the group consisting of a magenta pigment ink and a yellow pigment ink. The static surface tension of the pigment ink (b) is smaller than static surface tension (a1) by 0.1 mN/m to 0.7 mN/m.Type: GrantFiled: November 29, 2018Date of Patent: December 6, 2022Assignee: DIC CORPORATIONInventors: Naoaki Iioka, Takahiro Nio, Yuri Shouji, Masaki Hosaka
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Patent number: 11421122Abstract: A problem to be solved by the invention is to provide an aqueous ink capable of forming a clear print image without causing deterioration in print quality due to uneven drying (mottling) of the ink even when continuous printing is performed for a long period of time or when printing is resumed after printing is suspended for several minutes to several hours. The invention relates to an aqueous ink containing: an acetylene-based surfactant (A); a nonionic surfactant (B) other than the acetylene-based surfactant (A); and an aqueous medium (C), in which the nonionic surfactant (B) contains a nonionic surfactant that satisfies at least one of the following three requirements: (i) having an HLB of less than 13.5, (ii) having a clouding point of 75° C. or lower, and (iii) having no clouding point.Type: GrantFiled: October 3, 2019Date of Patent: August 23, 2022Assignee: DIC CORPORATIONInventors: Saki Fukui, Keigo Gouda, Masaki Hosaka
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Publication number: 20210395546Abstract: A problem to be solved by the invention is to provide an aqueous ink capable of forming a clear print image without causing deterioration in print quality due to uneven drying (mottling) of the ink even when continuous printing is performed for a long period of time or when printing is resumed after printing is suspended for several minutes to several hours. The invention relates to an aqueous ink containing: an acetylene-based surfactant (A); a nonionic surfactant (B) other than the acetylene-based surfactant (A); and an aqueous medium (C), in which the nonionic surfactant (B) contains a nonionic surfactant that satisfies at least one of the following three requirements: (i) having an HLB of less than 13.5, (ii) having a clouding point of 75° C. or lower, and (iii) having no clouding point.Type: ApplicationFiled: October 3, 2019Publication date: December 23, 2021Applicant: DIC CorporationInventors: Saki Fukui, Keigo Gouda, Masaki Hosaka
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Patent number: 11124664Abstract: The problem to be solved by the present invention is to provide an ink that can be used f producing a print having no streaks even in a case where the distance between the surface of a recording medium such as a cardboard and an ink jet head is long. The present invention relates to an ink for use in an ink jet recording method in which the distance from a surface (x) having an ink discharge port of an ink jet head to a position (y) where a line perpendicular to the surface (x) intersects with a recording medium is 2 mm or more, the ink having a viscosity in the range of 2 mPa·s or more and less than 9 mPa·s and a surface tension in the range of 20 mN/m to 40 mN/m.Type: GrantFiled: March 29, 2018Date of Patent: September 21, 2021Assignee: DIC CORPORATIONInventors: Takahiro Nio, Maiko Kitade, Yuri Shouji, Masaki Hosaka, Saki Fukui
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Publication number: 20210283695Abstract: When forming a first preliminary flute on a PCD layer of a columnar body, electrical discharge machining is performed by setting the electrode orientation so that the first twist angle is ?. Next, when forming a second preliminary flute on a substrate of the columnar body and a round bar, the grinding process is performed by setting the grinding orientation and direction for a diamond whetstone so that a second twist angle is larger than the first twist angle.Type: ApplicationFiled: September 20, 2017Publication date: September 16, 2021Inventors: Hiroyuki Fukushima, Junya Onose, Yuu Igarashi, Akihiro Osawa, Masaki Hosaka, Tomoya Kuroda
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Publication number: 20210002504Abstract: The problem to be solved by the present invention is to provide an ink set that enables forming a printed article with reduced bleeding and color mixing. The present invention is an ink set that includes a black pigment ink (a) having a static surface tension (a1) of 20 mN/m to 40 mN/m and at least one pigment ink (b) selected from the group consisting of a magenta pigment ink and a yellow pigment ink. The static surface tension of the pigment ink (b) is smaller than static surface tension (a1) by 0.1 mN/m to 0.7 mN/m.Type: ApplicationFiled: November 29, 2018Publication date: January 7, 2021Applicant: DIC CorporationInventors: Naoaki Iioka, Takahiro Nio, Yuri Shouji, Masaki Hosaka
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Publication number: 20200199390Abstract: A task to be achieved by the present invention is to provide an ink having excellent adhesion to an ink unabsorbent or non-absorbent recording medium, such as a resin film or coated paper, which is unlikely to absorb a solvent contained in an ink, and excellent setting property. The present invention is directed to an ink including a binder (A) having a carbonyl group, a compound (B) having a structure capable of reacting with the carbonyl group, and an aqueous medium in which the binder (A) and the compound (B) are dissolved or dispersed.Type: ApplicationFiled: September 13, 2018Publication date: June 25, 2020Applicant: DIC CorporationInventors: Maiko Kitade, Yoshinosuke Shimamura, Masaki Hosaka
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Publication number: 20200048486Abstract: The problem to be solved by the present invention is to provide an ink that can be used f producing a print having no streaks even in a case where the distance between the surface of a recording medium such as a cardboard and an ink jet head is long. The present invention relates to an ink for use in an ink jet recording method in which the distance from a surface (x) having an ink discharge port of an ink jet head to a position (y) where a line perpendicular to the surface (x) intersects with a recording medium is 2 mm or more, the ink having a viscosity in the range of 2 mPa·s or more and less than 9 mPa·s and a surface tension in the range of 20 mN/m to 40 mN/m.Type: ApplicationFiled: March 29, 2018Publication date: February 13, 2020Applicant: DIC CorporationInventors: Takahiro Nio, Maiko Kitade, Yuri Shouji, Masaki Hosaka, Saki Fukui
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Patent number: 10301547Abstract: The present invention relates to a flame retardant composition, including: at least one phosphorus compound represented by the following general formula (1) or (2); a cationic surfactant; and a nonionic surfactant: in the formula (1), A represents a divalent hydrocarbon group having 1 to 20 carbon atoms, n represents a number of from 1 to 10, and R1 to R8 each independently represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms; in the formula (2), R9 to R14 each independently represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, and r1, r2, and r3 each independently represent a number of 1 or 0.Type: GrantFiled: March 28, 2014Date of Patent: May 28, 2019Assignee: ADEKA CORPORATIONInventors: Masahiro Takata, Go Homma, Hiroaki Shirai, Masaki Hosaka
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Patent number: 9982149Abstract: The present invention provides a viscosity modifier composition including a compound (A) represented by the general formula (1) and a compound (B) represented by the general formula (2) at a mass ratio (A)/(B) of from 70/30 to 95/5, an emulsion composition and a water-based paint composition including the viscosity modifier composition.Type: GrantFiled: February 2, 2015Date of Patent: May 29, 2018Assignee: ADEKA CORPORATIONInventors: Masaki Hosaka, Takashi Ono
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Publication number: 20170174908Abstract: The present invention provides a viscosity modifier composition including a compound (A) represented by the general formula (1) and a compound (B) represented by the general formula (2) at a mass ratio (A)/(B) of from 70/30 to 95/5, an emulsion composition and a water-based paint composition including the viscosity modifier composition.Type: ApplicationFiled: February 2, 2015Publication date: June 22, 2017Applicant: ADEKA CORPORATIONInventors: Masaki HOSAKA, Takashi ONO
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Publication number: 20170158893Abstract: An aqueous pigment composition contains a pigment, water, and an acrylic resin obtained by copolymerizing a silane coupling agent having an ethylenically unsaturated group and a polymerizable monomer having an amide group. Relative to a total amount of monomers used in copolymerization, the acrylic resin uses 0.05% by mass or more and not more than 2% by mass of the silane coupling agent having an ethylenically unsaturated group, and 0.5% by mass or more and not more than 5% by mass of the polymerizable monomer having an amide group.Type: ApplicationFiled: December 11, 2014Publication date: June 8, 2017Applicant: DIC CORPORATIONInventors: Hiroyuki Fukui, Yuri Shoji, Masaki Hosaka, Masaki Watanabe, Ryosuke Ohmura
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Patent number: 9518166Abstract: A film forming auxiliary agent composition for an emulsion resin in accordance with the present invention is characterized in that containing a specific ester compound (A) and a specific fatty acid (B), and having an acid value of 0.05 to 5 mg KOH/g, said composition has low odor, a high boiling point and good film forming ability, and the emulsion resin that is blended with said composition has good long-term storage stability.Type: GrantFiled: October 24, 2013Date of Patent: December 13, 2016Inventors: Takashi Ono, Hiroaki Shirai, Masaki Hosaka
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Publication number: 20160237242Abstract: A film forming auxiliary agent composition for an emulsion resin in accordance with the present invention is characterized in that containing a specific ester compound (A) and a specific fatty acid (B), and having an acid value of 0.05 to 5 mg KOH/g, said composition has low odor, a high boiling point and good film forming ability, and the emulsion resin that is blended with said composition has good long-term storage stability.Type: ApplicationFiled: October 24, 2013Publication date: August 18, 2016Applicant: ADEKA CORPORATIONInventors: Takashi ONO, Hiroaki SHIRAI, Masaki HOSAKA
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Publication number: 20160053179Abstract: The present invention relates to a flame retardant composition, including: at least one phosphorus compound represented by the following general formula (1) or (2); a cationic surfactant; and a nonionic surfactant: in the formula (1), A represents a divalent hydrocarbon group having 1 to 20 carbon atoms, n represents a number of from 1 to 10, and R1 to R8 each independently represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms; in the formula (2), R9 to R14 each independently represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, and r1, r2, and r3 each independently represent a number of 1 or 0.Type: ApplicationFiled: March 28, 2014Publication date: February 25, 2016Applicant: ADEKA CORPORATIONInventors: Masahiro TAKATA, Go HOMMA, Hiroaki SHIRAI, Masaki HOSAKA