Patents by Inventor Tomohisa Nishimoto
Tomohisa Nishimoto 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: 11597786Abstract: The present invention relates to a model material composition for shaping a model material by a material jetting optical shaping method, comprising a polymerizable compound, a photopolymerization initiator and a siloxane compound having one polymerizable group per molecule, the siloxane compound having a number average molecular weight of 300 to 10,000.Type: GrantFiled: September 13, 2018Date of Patent: March 7, 2023Assignee: MAXELL, LTD.Inventors: Tomohisa Nishimoto, Satoshi Kubo
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Patent number: 11231611Abstract: The present invention addresses the problem of providing a coating composition and an electroconductive film, capable of improving touch panel performance, such as operational stability over time and touch detection sensitivity of a liquid crystal display panel having a reduced thickness.Type: GrantFiled: September 7, 2018Date of Patent: January 25, 2022Assignee: MAXELL HOLDINGS, LTD.Inventors: Tomohisa Nishimoto, Satoshi Kobayashi, Yoshiyuki Makida, Yoshimasa Mitsumoto, Kaori Kitabatake
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Patent number: 11098211Abstract: To provide a photocurable inkjet primer ink composition having a low viscosity, which is capable of forming a primer layer which exhibits excellent adhesion to a non-absorptive substrate material and has low tackiness, an inkjet ink set, and an inkjet recording method. A photocurable inkjet primer ink composition comprising: a photopolymerizable compound and a photopolymerization initiator, the composition having a viscosity at 25° C. of 5.0 to 10.0 mPa·s; wherein the photopolymerizable compound is composed of a monofunctional ethylenically unsaturated monomer and a bifunctional ethylenically unsaturated oligomer; wherein a content of the monofunctional ethylenically unsaturated monomer is 76.0 parts by weight or more per 100 parts by weight of the whole composition; and wherein a homopolymer of the monofunctional ethylenically unsaturated monomer has a glass transition temperature of lower than 25° C.Type: GrantFiled: March 14, 2017Date of Patent: August 24, 2021Assignee: MAXELL HOLDINGS, LTD.Inventors: Yujiro Harada, Tomohisa Nishimoto
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Patent number: 10907063Abstract: An ink composition according to the present invention contains a polymerizable compound and a photopolymerization initiator, wherein an amount of organic sulfonic acid measured at a temperature of 25° C. by using a water extraction method is 50 ppm or less, and an amount of water measured by a Karl Fischer method is 0.50 mass % or less with respect to a total mass of the ink composition. Also, an ink-jet ink set according to the present invention includes the above-described ink composition of the present invention. Also, an ink-jet printing system according to the present invention uses the above-described ink composition of the present invention and an ink-jet recording apparatus, and the ink-jet recording apparatus includes an ink heating portion and an ink filter.Type: GrantFiled: September 13, 2016Date of Patent: February 2, 2021Assignee: Maxell Holdings, Ltd.Inventors: Tomohisa Nishimoto, Yoshiro Nishimura, Masaru Nakayama, Satoshi Kubo
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Publication number: 20200409211Abstract: The present invention addresses the problem of providing a coating composition and an electroconductive film, capable of improving touch panel performance, such as operational stability over time and touch detection sensitivity of a liquid crystal display panel having a reduced thickness.Type: ApplicationFiled: September 7, 2018Publication date: December 31, 2020Inventors: Tomohisa NISHIMOTO, Satoshi KOBAYASHI, Yoshiyuki MAKIDA, Yoshimasa MITSUMOTO, Kaori KITABATAKE
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Patent number: 10822509Abstract: An ink composition according to the present invention contains a polymerizable compound and a photopolymerization initiator, wherein an amount of organic sulfonic acid measured at a temperature of 25° C. by using a water extraction method is 50 ppm or less, and an amount of water measured by a Karl Fischer method is 0.50 mass % or less with respect to a total mass of the ink composition. Also, an ink-jet ink set according to the present invention includes the above-described ink composition of the present invention. Also, an ink-jet printing system according to the present invention uses the above-described ink composition of the present invention and an ink-jet recording apparatus, and the ink-jet recording apparatus includes an ink heating portion and an ink filter.Type: GrantFiled: May 30, 2019Date of Patent: November 3, 2020Assignee: Maxell Holdings, Ltd.Inventors: Tomohisa Nishimoto, Yoshiro Nishimura, Masaru Nakayama, Satoshi Kubo
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Publication number: 20200317940Abstract: To provide a photocurable inkjet primer ink composition having a low viscosity, which is capable of forming a primer layer which exhibits excellent adhesion to a non-absorptive substrate material and has low tackiness, an inkjet ink set, and an inkjet recording method. A photocurable inkjet primer ink composition comprising: a photopolymerizable compound and a photopolymerization initiator, the composition having a viscosity at 25° C. of 5.0 to 10.0 mPa·s; wherein the photopolymerizable compound is composed of a monofunctional ethylenically unsaturated monomer and a bifunctional ethylenically unsaturated oligomer; wherein a content of the monofunctional ethylenically unsaturated monomer is 76.0 parts by weight or more per 100 parts by weight of the whole composition; and wherein a homopolymer of the monofunctional ethylenically unsaturated monomer has a glass transition temperature of lower than 25° C.Type: ApplicationFiled: March 14, 2017Publication date: October 8, 2020Inventors: Yujiro HARADA, Tomohisa NISHIMOTO
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Publication number: 20200282636Abstract: The present invention relates to a model material composition for shaping a model material by a material jetting optical shaping method, comprising a polymerizable compound, a photopolymerization initiator and a siloxane compound having one polymerizable group per molecule, the siloxane compound having a number average molecular weight of 300 to 10,000.Type: ApplicationFiled: September 13, 2018Publication date: September 10, 2020Inventors: Tomohisa NISHIMOTO, Satoshi KUBO
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Publication number: 20190315986Abstract: An ink composition according to the present invention contains a polymerizable compound and a photopolymerization initiator, wherein an amount of organic sulfonic acid measured at a temperature of 25° C. by using a water extraction method is 50 ppm or less, and an amount of water measured by a Karl Fischer method is 0.50 mass % or less with respect to a total mass of the ink composition. Also, an ink-jet ink set according to the present invention includes the above-described ink composition of the present invention. Also, an ink-jet printing system according to the present invention uses the above-described ink composition of the present invention and an ink-jet recording apparatus, and the ink-jet recording apparatus includes an ink heating portion and an ink filter.Type: ApplicationFiled: May 30, 2019Publication date: October 17, 2019Applicant: Maxell Holdings, Ltd.Inventors: Tomohisa NISHIMOTO, Yoshiro NISHIMURA, Masaru NAKAYAMA, Satoshi KUBO
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Publication number: 20180066150Abstract: An ink composition according to the present invention contains a polymerizable compound and a photopolymerization initiator, wherein an amount of organic sulfonic acid measured at a temperature of 25° C. by using a water extraction method is 50 ppm or less, and an amount of water measured by a Karl Fischer method is 0.50 mass % or less with respect to a total mass of the ink composition. Also, an inkjet ink set according to the present invention includes the above-described ink composition of the present invention. Also, an ink-jet printing system according to the present invention uses the above-described ink composition of the present invention and an inkjet recording apparatus, and the inkjet recording apparatus includes an ink heating portion and an ink filter.Type: ApplicationFiled: September 13, 2016Publication date: March 8, 2018Applicant: HITACHI MAXELL, LTD.Inventors: Tomohisa NISHIMOTO, Yoshiro NISHIMURA, Masaru NAKAYAMA, Satoshi KUBO
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Patent number: 9428660Abstract: An oil-based ink composition comprising a colorant, an organic solvent and a polymeric compound, and optionally an alkylamine ethylene oxide derivative as a pH adjusting agent, in which the pH of an aqueous phase is from 5.5 to 10, when ions in the ink composition are transferred to water. This oil-based ink composition prevents corrosion of a nozzle plate and is improved in storage stability, and thus can ensure printer reliability such as ink-jet stability obtainable even after long storage thereof, and can withstand outdoor service environments.Type: GrantFiled: January 22, 2014Date of Patent: August 30, 2016Assignee: HITACHI MAXELL, LTD.Inventors: Tomohisa Nishimoto, Miyuki Dobata, Kanryo Terasawa
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Publication number: 20140135432Abstract: An oil-based ink composition comprising a colorant, an organic solvent and a polymeric compound, and optionally an alkylamine ethylene oxide derivative as a pH adjusting agent, in which the pH of an aqueous phase is from 5.5 to 10, when ions in the ink composition are transferred to water. This oil-based ink composition prevents corrosion of a nozzle plate and is improved in storage stability, and thus can ensure printer reliability such as ink-jet stability obtainable even after long storage thereof, and can withstand outdoor service environments.Type: ApplicationFiled: January 22, 2014Publication date: May 15, 2014Applicant: HITACHI MAXELL, LTD.Inventors: Tomohisa NISHIMOTO, Miyuki DOBATA, Kanryo TERASAWA
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Patent number: 8669318Abstract: An oil-based ink composition comprising a colorant, an organic solvent and a polymeric compound, and optionally an alkylamine ethylene oxide derivative as a pH adjusting agent, in which the pH of an aqueous phase is from 5.5 to 10, when ions in the ink composition are transferred to water. This oil-based ink composition prevents corrosion of a nozzle plate and is improved in storage stability, and thus can ensure printer reliability such as ink-jet stability obtainable even after long storage thereof, and can withstand outdoor service environments.Type: GrantFiled: March 14, 2007Date of Patent: March 11, 2014Assignee: Hitachi Maxell, Ltd.Inventors: Tomohisa Nishimoto, Miyuki Dobata, Kanryo Terasawa
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Publication number: 20090088500Abstract: An oil-based ink composition comprising a colorant, an organic solvent and a polymeric compound, and optionally an alkylamine ethylene oxide derivative as a pH adjusting agent, in which the pH of an aqueous phase is from 5.5 to 10, when ions in the ink composition are transferred to water. This oil-based ink composition prevents corrosion of a nozzle plate and is improved in storage stability, and thus can ensure printer reliability such as ink-jet stability obtainable even after long storage thereof, and can withstand outdoor service environments.Type: ApplicationFiled: March 14, 2007Publication date: April 2, 2009Inventors: Tomohisa Nishimoto, Miyuki Dobata, Kanryo Terasawa