Patents by Inventor Takuya Myose
Takuya Myose 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: 20250122391Abstract: An ink composition for ultraviolet-curable inkjet printing comprising polymerization components and a photopolymerization initiator, wherein the polymerization components include (A) a polyfunctional amine-modified oligomer, (B) a nitrogen-containing monomer, (C) an aromatic ring-containing monomer, and (D) a polyfunctional monomer, wherein (A) comprises an acrylated amine compound having two photopolymerizable functional groups and two amino groups in a molecule, wherein (B) comprises at least one of acryloylmorpholine or vinyl caprolactam, wherein (C) comprises benzyl acrylate and phenoxyethyl acrylate, wherein (D) comprises at least one of dipropylene glycol diacrylate, 1,6-hexanediol diacrylate, and ethoxylated trimethylolpropane triacrylate, wherein a content of (A) is 0.8 to 11.0% by mass, wherein a content of (C) the aromatic ring-containing monomer is 32.0 to 75.0% by mass, and wherein a content of (D) is 1.5 to 14.0% by mass.Type: ApplicationFiled: July 8, 2022Publication date: April 17, 2025Applicant: SAKATA INX CORPORATIONInventors: Okinori Nakashima, Takuya Myose, Kazuhiro Fuke
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Patent number: 12122927Abstract: Provided is a photo-curable inkjet printing ink composition, comprising (A) an acrylicated amine compound having two photopolymerizable functional groups and two amino groups in a molecule, (B) a (meth)acrylic monomer having an alkoxy group, and (C) at least one selected from the group consisting of hexanediol acrylate, 3-methyl-1,5-pentanediol diacrylate, dipropylene glycol diacrylate, and neopentyl glycol diacrylate hydroxypivalate, wherein a content of the component (A) is 3 to 18% by mass in the ink composition, wherein a content of the component (B) is 5 to 35% by mass in the ink composition, and wherein a content of the component (C) is 30 to 60% by mass in the ink composition.Type: GrantFiled: November 28, 2019Date of Patent: October 22, 2024Assignee: SAKATA INX CORPORATIONInventors: Okinori Nakashima, Takuya Myose, Jun Kawabata
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Patent number: 12110399Abstract: An object is to obtain a photocurable inkjet printing ink composition that demonstrates excellent preservation stability and discharge property, while also presenting curability under ultraviolet light from a light-emitting diode (LED) light source, as well as good adhesion, flexibility and tackiness. As a solution, a photocurable inkjet printing ink composition containing photopolymerizable compounds and photopolymerization initiator is provided, wherein the photocurable inkjet printing ink composition satisfies A to D: A. 2-(allyloxy methyl) methyl acrylate is contained by 5 to 40 percent by mass in all photopolymerizable compounds; B. multifunctional monomers and/or multifunctional oligomers of 0° C. or lower in glass transition temperature are contained by 5 to 20 percent by mass in all photopolymerizable compounds; C. amino group and/or amide group-containing monomers and/or oligomers are contained; and D. the ink composition has a viscosity of 30 mPa·s or lower at 25° C.Type: GrantFiled: March 19, 2019Date of Patent: October 8, 2024Assignee: SAKATA INX CORPORATIONInventors: Okinori Nakashima, Takuya Myose, Kazuhiro Fuke, Ryoichi Nitta
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Patent number: 11912881Abstract: Disclosed is an ink composition for photo-curable ink jet printing, comprising (A) at least one selected from the group consisting of hexanediol acrylate, 3-methyl-1,5-pentanediol diacrylate, dipropylene glycol diacrylate, and hydroxy pivalic acid neopentyl glycol diacrylate, (B) at least one of vinyl amide monomer and acryloyl amine monomer, (C) an acrylated amine compound having two photopolymerizable functional groups and two amino groups in a molecule, (D) a monofunctional monomer (excluding vinyl amide monomer which is the (B) component), and a photopolymerization initiator, wherein a content of the (A) component is 40 to 70% by mass, wherein a content of the (B) component is 5 to 30% by mass, wherein a content of the (C) component is 0.1 to 15% by mass, and wherein a viscosity is 200 mPa·s or less.Type: GrantFiled: October 1, 2019Date of Patent: February 27, 2024Assignee: SAKATA INX CORPORATIONInventors: Okinori Nakashima, Takuya Myose, Kazuhiro Fuke
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Patent number: 11787179Abstract: An inkjet printing device for multi-color printing includes: multi-color inkjet nozzles that move in the direction perpendicular to the moving direction of the target base printing material and also in the direction parallel to the surface of the target base printing material; plasma ejection ports provided downstream of the multi-color inkjet nozzles in a manner oriented facing the surface of the multiple colored inks printed on the target base printing material; and an electron beam irradiation part located on the downstream side of the inkjet nozzles and plasma ejection ports, in a manner oriented facing the printed surface of the target base printing material.Type: GrantFiled: October 11, 2019Date of Patent: October 17, 2023Assignee: SAKATA INX CORPORATIONInventors: Okinori Nakashima, Takuya Myose, Jun Kinjoh, Daigo Shiozaki
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Patent number: 11414558Abstract: An object is to obtain a photocurable inkjet printing ink composition that demonstrates excellent preservation stability and discharge stability, good adhesion, bending tolerance property, and tackiness, and high hardness. As a solution, a photocurable inkjet printing ink composition containing photopolymerizable compounds and photopolymerization initiator is provided, wherein the photocurable inkjet printing ink composition satisfies the requirements of A to E: A. 3,3,5-trimethyl cyclohexyl acrylate is contained by 5 to 50 percent by mass in all photopolymerizable compounds; B. multifunctional monomers and/or multifunctional oligomers of 10° C. or lower in glass transition temperature are contained by 1 to 15 percent by mass in all photopolymerizable compounds; C. monofunctional monomers are contained by a total of 40 percent by mass or more in all photopolymerizable compounds; D. amino group and/or amide group-containing monomers and/or oligomers are contained; and E.Type: GrantFiled: April 1, 2019Date of Patent: August 16, 2022Assignee: SAKATA INX CORPORATIONInventors: Okinori Nakashima, Takuya Myose, Kazuhiro Fuke, Yuki Yoshida
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Patent number: 11230647Abstract: Clear inks are prone to heat-induced micro-gelling that can cause their storage stability to drop, and micro-gelling may also occur in clear inks with the passage of time, in which case their inkjet discharge property may drop. As a solution, a photocurable clear ink composition for inkjet printing is provided, which contains a photopolymerizable compound, a photopolymerization initiator, and an inorganic filler of 1 to 200 nm in average grain size accounting for 0.05 to 5.0 percent by mass in the composition, and whose visible light transmission factor is 30% or higher.Type: GrantFiled: June 30, 2017Date of Patent: January 25, 2022Assignee: SAKATA INX CORPORATIONInventors: Okinori Nakashima, Takuya Myose, Takuya Okamoto, Kazuhiro Fuke, Ryoichi Nitta
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Patent number: 11053399Abstract: An object is to provide an ink composition for inkjet printing that permits inkjet printing, particularly on metal surfaces, wherein such ink composition possesses sufficiently high adhesion and heat resistance with respect to metal surfaces. As a means for achieving the object, a photocurable inkjet printing ink composition is provided, which contains, relative to the entire ink composition, 0.1 percent by mass or more of an acid-modified acrylic monomer and 10 to 30 percent by mass of a monofunctional monomer with a Tg of 100° C. or above, wherein the monofunctional monomer accounts for 80 percent by mass or more of all monomers.Type: GrantFiled: July 3, 2018Date of Patent: July 6, 2021Assignee: SAKATA INX CORPORATIONInventors: Yoichi Sato, Okinori Nakashima, Takuya Myose
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Patent number: 10767068Abstract: A photocurable inkjet printing ink composition contains a photopolymerizable compound and a photopolymerization initiator, wherein in 100 percent by mass of the photocurable inkjet printing ink composition, included are: an acrylamide-based monomer by 5.0 to 50 percent by mass; a monofunctional monomer other than acrylamide-based monomer by 15 to 70 percent by mass; a polymerizable compound having two or more functionalities by 5.0 to 30.0 percent by mass; vinyl caprolactam by 0.1 to 15 percent by mass and/or an acrylated amine compound having two photopolymerizable functional groups and two amino groups in the molecule by 0 to 10 percent by mass; and the percentage of monofunctional monomers in the photopolymerizable compound is 60 to 99.5 percent by mass.Type: GrantFiled: January 31, 2017Date of Patent: September 8, 2020Assignee: SAKATA INX CORPORATIONInventors: Okinori Nakashima, Takuya Myose, Takuya Okamoto, Kazuhiro Fuke
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Patent number: 10584253Abstract: A light-curable inkjet printing ink composition contains a light-polymerizable component and a light-polymerization initiator, where the light-curable inkjet printing ink composition contains 70 to 100 percent by mass of monofunctional monomers relative to the total mass of the light-polymerizable component; wherein the monofunctional monomers comprise: (A) a monofunctional monomer whose homopolymer has a glass transition temperature of 20° C. or above; and (B) a monofunctional monomer whose homopolymer has a glass transition temperature of below 20° C.; and (A) is contained by 30 to 90 percent by mass, while (B) is contained by 10 to 70 percent by mass, relative to the total mass of the light-polymerizable component.Type: GrantFiled: December 26, 2016Date of Patent: March 10, 2020Assignee: SAKATA INX CORPORATIONInventors: Yoichi Sato, Okinori Nakashima, Takuya Myose, Kazuhiro Fuke
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Patent number: 9598591Abstract: Provided is an ink set having excellent curing properties under LED light, providing printed matter that does not fade or discolor due to a photopolymerization initiator, suppressing color bleeding during image forming, exhibiting favorable adhesion towards a polyvinyl chloride sheet, enabling cock ring to be efficiently suppressed, and demonstrating an extremely low viscosity, high flash point and low skin irritation. The present invention pertains to an ink set containing at least two compositions selected from the group consisting of a yellow ink composition, a magenta ink composition, a cyan ink composition, a black ink composition, a white ink composition, and a clear ink composition, the compositions having the predetermined structure as specified in claim 1, wherein the flash point of the ink compositions is 70° C. or higher, and the viscosity (25° C.) is 5 mPa-s or lower.Type: GrantFiled: October 24, 2013Date of Patent: March 21, 2017Assignee: SAKATA INX CORP.Inventors: Shinya Mizutani, Tadashi Hirose, Takuya Myose
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Patent number: 9587126Abstract: Provided is a photocurable ink composition for inkjet printing which is favorably cured with light from a light-emitting diode (LED), favorably adheres to a polyvinyl chloride sheet such as a tarpaulin and a vinyl chloride resin sheet, suppresses the occurrence of cockling, and has both safety and favorable ejection stability at room temperature when ejected from an inkjet head for low-viscosity ink, and a printed material. The present invention is a photocurable ink composition for inkjet printing containing photopolymerizable compounds and a photopolymerization initiator. The photopolymerizable compounds are vinyloxyethoxyethyl acrylate and benzyl acrylate, and contained in specific amounts. The photopolymerization initiator is a compound that expresses an initiator function when irradiated with light having a wavelength within the range of 450 to 300 nm. The photocurable ink composition has a flash point of 70° C. or higher and a viscosity at 25° C.Type: GrantFiled: July 17, 2013Date of Patent: March 7, 2017Assignee: SAKATA INX CORPORATIONInventors: Shinya Mizutani, Takuya Myose, Tadashi Hirose
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Patent number: 9546291Abstract: Provided is a photocurable ink composition for inkjet printing which is favorably cured with light from a light-emitting diode (LED), favorably adheres to a polyvinyl chloride sheet such as a tarpaulin and a vinyl chloride resin sheet, suppresses the occurrence of cockling, and has both safety and favorable ejection stability at room temperature when ejected from an inkjet head for low-viscosity ink, and a printed material. The present invention is a photocurable ink composition for inkjet printing containing photopolymerizable compounds and a photopolymerization initiator. The photopolymerizable compounds are vinyloxyethoxyethyl acrylate and benzyl acrylate, and contained in specific amounts. The photopolymerization initiator is a compound that expresses an initiator function when irradiated with light having a wavelength within the range of 450 to 300 nm. The photocurable ink composition has a flash point of 70° C. or higher and a viscosity at 25° C.Type: GrantFiled: July 17, 2013Date of Patent: January 17, 2017Assignee: SAKATA INX CORPORATIONInventors: Shinya Mizutani, Takuya Myose, Tadashi Hirose
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Publication number: 20150291819Abstract: The present invention aims to provide an ink set which has excellent curability under LED light, provides a printed material without coloration or fading due to a photoinitiator, prevents color mixing in image formation, has good adhesion to polyvinyl chloride-based sheets, sufficiently prevent cockling, and has very low viscosity as well as a high flash point and low skin irritation. An ink set including: at least two selected from the group consisting of a yellow ink composition, a magenta ink composition, a cyan ink composition, a black ink composition, a white ink composition, and a clear ink composition. Each ink composition has a flash point of 70° C. or higher and a viscosity at 25° C. of 5 mPa·s or less. The magenta, cyan, and clear ink compositions each contain 4 to 40% by mass of vinyloxyethoxyethyl acrylate, 10 to 65% by mass of benzyl acrylate, 5 to 35% by mass of N-vinylcaprolactam, and an acylphosphine oxide photoinitiator, and are each free of a thioxanthone photoinitiator.Type: ApplicationFiled: October 24, 2013Publication date: October 15, 2015Inventors: Shinya Mizutani, Tadashi Hirose, Takuya Myose
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Publication number: 20150284579Abstract: The present invention provides a photocurable ink composition for inkjet printing having favorable ejection stability from a low viscosity compatible inkjet head at ambient temperature. The present invention relates to a photocurable ink composition for inkjet printing containing at least a photopolymerizable compound, a photopolymerization initiator, a surfactant, and a pigment, the photocurable ink composition for inkjet printing having a viscosity at 25° C. of 12 mPa·s or less, the photocurable ink composition for inkjet printing containing, as the surfactant, 0.01 to 0.30% by mass of polyester-modified methylalkylpolysiloxane.Type: ApplicationFiled: November 20, 2013Publication date: October 8, 2015Inventors: Shinya Mizutani, Tadashi Hirose, Takuya Myose
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Patent number: 9102839Abstract: A photocurable inkjet printing ink composition includes at least a photopolymerizable compound component and a photopolymerization initiator, wherein in the photopolymerizable compound component, a monofunctional monomer is included in a content of 91.0 to 99.5% by mass and a multifunctional monomer is included in a content of 0.5 to 9.0% by mass; in the monofunctional monomer component, acryloylmorpholine is included in a content of 30.0 to 85.0% by mass; the monofunctional monomer component includes at least one selected from benzyl acrylate, ethyl carbitol acrylate, tetrahydrofurfuryl acrylate and phenoxyethyl acrylate in a content of 5.0 to 40.0% by mass in the monofunctional monomer component; and the stretching rate at 180° C. of the cured coating obtained by photopolymerizing the photocurable inkjet printing ink composition is 120% or more.Type: GrantFiled: August 17, 2012Date of Patent: August 11, 2015Assignee: SAKATA INX CORPORATIONInventors: Shinya Mizutani, Tadashi Hirose, Takuya Myose
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Publication number: 20150210874Abstract: A photocurable inkjet printing ink composition includes at least a photopolymerizable compound component and a photopolymerization initiator, wherein in the photopolymerizable compound component, a monofunctional monomer is included in a content of 91.0 to 99.5% by mass and a multifunctional monomer is included in a content of 0.5 to 9.0% by mass; in the monofunctional monomer component, acryloylmorpholine is included in a content of 30.0 to 85.0% by mass; the monofunctional monomer component includes at least one selected from benzyl acrylate, ethyl carbitol acrylate, tetrahydrofurfuryl acrylate and phenoxyethyl acrylate in a content of 5.0 to 40.0% by mass in the monofunctional monomer component; and the stretching rate at 180° C. of the cured coating obtained by photopolymerizing the photocurable inkjet printing ink composition is 120% or more.Type: ApplicationFiled: August 17, 2012Publication date: July 30, 2015Applicant: SAKATA INX CORPORATIONInventors: Shinya Mizutani, Tadashi Hirose, Takuya Myose
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Publication number: 20150203695Abstract: Provided is a photocurable ink composition for inkjet printing which is favorably cured with light from a light-emitting diode (LED), favorably adheres to a polyvinyl chloride sheet such as a tarpaulin and a vinyl chloride resin sheet, suppresses the occurrence of cockling, and has both safety and favorable ejection stability at room temperature when ejected from an inkjet head for low-viscosity ink, and a printed material. The present invention is a photocurable ink composition for inkjet printing containing photopolymerizable compounds and a photopolymerization initiator. The photopolymerizable compounds are vinyloxyethoxyethyl acrylate and benzyl acrylate, and contained in specific amounts. The photopolymerization initiator is a compound that expresses an initiator function when irradiated with light having a wavelength within the range of 450 to 300 nm. The photocurable ink composition has a flash point of 70° C. or higher and a viscosity at 25° C.Type: ApplicationFiled: July 17, 2013Publication date: July 23, 2015Inventors: Shinya Mizutani, Takuya Myose, Tadashi Hirose