Patents by Inventor Yutaka Kadomoto
Yutaka Kadomoto 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: 11760934Abstract: The compound is represented by general formula (i). In the compound, in a group Ki1, at least two secondary carbon atoms in an alkyl group (a linear alkyl, halogenated alkyl, or cyanogenated alkyl group having 3 to 40 carbon atoms) are replaced with —C(?Xi1)— and/or —CH(—CN)—, where Xi1 is an oxygen atom, a sulfur atom, NH, or NR13; in addition, a group Ai2, a group Ai3, or the group Ki1 includes, as a substituent, at least one Pi1-Spi1- group, where Pi1 is a polymerizable group, and SPi1 is a spacer group or a single bond. The liquid crystal composition including the compound represented by general formula (i) can be adsorbed onto substrates between which a liquid crystal layer is held, and, consequently, without the use of an alignment film, liquid crystal molecules can be maintained in a state in which the liquid crystal molecules are aligned in a vertical direction.Type: GrantFiled: November 1, 2018Date of Patent: September 19, 2023Assignee: DIC CORPORATIONInventors: Kenta Shimizu, Masanao Hayashi, Yutaka Kadomoto, Tetsuo Kusumoto, Ayaki Hosono, Shinya Yamamoto, Masanori Miyamoto, Hidetomo Kai
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Publication number: 20230131540Abstract: A compound that helps achieve a high voltage holding ratio (VHR) of a liquid crystal composition, a liquid crystal composition that contains this compound, and a liquid crystal display element made with this liquid crystal composition. More specifically, a compound represented by general formula (Y), which has polymerizable groups and polar group(s). A liquid crystal composition containing one or two or more compounds represented by general formula (Y), each of which has polymerizable groups and polar group(s). A liquid crystal display element made with a liquid crystal composition that contains one or two or more compounds represented by general formula (Y), each of which has polymerizable groups and polar group(s).Type: ApplicationFiled: December 10, 2020Publication date: April 27, 2023Applicant: DIC CorporationInventors: Yuichi INOUE, Daiki NORO, Yutaka KADOMOTO, Hirokazu SUGIYAMA, Noriyuki SUGIYAMA
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Patent number: 11472763Abstract: A calixarene compound represented by formula (1) below is provided. The calixarene compound contains, per molecule, at least one —CH2OH group or phenolic hydroxy group and at least one carbon-carbon unsaturated bond. R1's are a structural moiety (A), which has a —CH2OH group; a structural moiety (B), which has a carbon-carbon unsaturated bond; a structural moiety (C), which has a —CH2OH group and a carbon-carbon unsaturated bond; a monovalent organic group (D), which is different from (A), (B), and (C); or a hydrogen atom (E). R2's are (A), (B), (C), (D), or (E) provided that not all R2's are (E). R3's are one of a hydrogen atom, an aliphatic hydrocarbon group, and an aryl group, n is 2 to 10. * is a point of attachment to an aromatic ring. A curable composition including the calixarene compound is provided.Type: GrantFiled: July 19, 2018Date of Patent: October 18, 2022Assignee: DIC CorporationInventors: Shinya Yamamoto, Yutaka Kadomoto, Masanori Miyamoto, Tomoyuki Imada, Hidetomo Kai
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Publication number: 20220315527Abstract: Provided is a calixarene compound represented by structural formula (1). In structural formula (1), R1 and R2 each independently represent a structural moiety (A) having a functional group (I), a structural moiety (B) having a functional group (II) having a carbon-carbon unsaturated bond (excluding maleate groups), a structural moiety (C) having both the functional group (I) and the functional group (II), a monovalent organic group (D) that has 1 to 20 carbon atoms and is other than the structural moieties (A), (B) and (C), or a hydrogen atom (E). At least one of a plurality of R2s is the structural moiety (A), the structural moiety (B), the structural moiety (C), or the organic group (D).Type: ApplicationFiled: May 15, 2019Publication date: October 6, 2022Applicant: DIC CorporationInventors: Shinya Yamamoto, Masanori Miyamoto, Hidetomo Kai, Tomoyuki Imada, Yutaka Kadomoto
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Publication number: 20210198178Abstract: A calixarene compound represented by formula (1) below is provided. The calixarene compound contains, per molecule, at least one —CH2OH group or phenolic hydroxy group and at least one carbon-carbon unsaturated bond. R1's are a structural moiety (A), which has a —CH2OH group; a structural moiety (B), which has a carbon-carbon unsaturated bond; a structural moiety (C), which has a —CH2OH group and a carbon-carbon unsaturated bond; a monovalent organic group (D), which is different from (A), (B), and (C); or a hydrogen atom (E). R2's are (A), (B), (C), (D), or (E) provided that not all R2's are (E). R3's are one of a hydrogen atom, an aliphatic hydrocarbon group, and an aryl group. n is 2 to 10. * is a point of attachment to an aromatic ring. A curable composition including the calixarene compound is provided. A cured product of the curable composition is provided.Type: ApplicationFiled: July 19, 2018Publication date: July 1, 2021Inventors: Shinya Yamamoto, Yutaka Kadomoto, Masanori Miyamoto, Tomoyuki Imada, Hidetomo Kai
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Patent number: 10919870Abstract: There is provided a polymerizable composition, by which discoloration or alignment defects are less likely to occur when a filmy polymer, which is obtained by adding a polymerizable compound to the polymerizable composition and polymerizing this composition, is irradiated with ultraviolet light. There are also provided a polymer obtained by polymerizing the polymerizable composition, and an optically anisotropic body using the polymer. The present invention provides a polymerizable low-wavelength dispersive or polymerizable reverse-wavelength dispersive compound having a partial structure represented by Formula (Z-0). Further, the present invention provides a composition containing the compound; a polymer obtained by polymerizing the composition; and an optically anisotropic body obtained by using the polymer.Type: GrantFiled: November 9, 2015Date of Patent: February 16, 2021Assignee: DIC CORPORATIONInventors: Masahiro Horiguchi, Yutaka Kadomoto, Akihiro Koiso, Masanao Hayashi, Yoshitaka Saitou, Yan Teng, Zhimin Li
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Publication number: 20200308488Abstract: The compound is represented by general formula (i). In the compound, in a group Ki1, at least two secondary carbon atoms in an alkyl group (a linear alkyl, halogenated alkyl, or cyanogenated alkyl group having 3 to 40 carbon atoms) are replaced with —C(?Xi1)— and/or —CH(—CN)—, where Xi1 is an oxygen atom, a sulfur atom, NH, or NR13; in addition, a group Ai2, a group Ai3, or the group Ki1 includes, as a substituent, at least one Pi1-Spi1- group, where Pi1 is a polymerizable group, and SPi1 is a spacer group or a single bond. The liquid crystal composition including the compound represented by general formula (i) can be adsorbed onto substrates between which a liquid crystal layer is held, and, consequently, without the use of an alignment film, liquid crystal molecules can be maintained in a state in which the liquid crystal molecules are aligned in a vertical direction.Type: ApplicationFiled: November 1, 2018Publication date: October 1, 2020Applicant: DIC CorporationInventors: Kenta Shimizu, Masanao Hayashi, Yutaka Kadomoto, Tetsuo Kusumoto, Ayaki Hosono, Shinya Yamamoto, Masanori Miyamoto, Hidetomo Kai
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Patent number: 10723952Abstract: The present invention provides a polymerizable compound that reduces, for example, the likelihood of crystals precipitating in a polymerizable composition including the polymerizable compound and enables the polymerizable composition to have high preservation stability and a polymerizable composition including the polymerizable compound which reduces the likelihood of inconsistencies being formed in a film-like polymer produced by polymerizing the polymerizable composition. Also provided are a polymer produced by polymerizing the polymerizable composition and an optically anisotropic body including the polymer. The present invention provides the compound represented by General Formula (I), a composition including the compound, a polymer produced by polymerizing the composition, and an optically anisotropic body including the polymer.Type: GrantFiled: October 6, 2015Date of Patent: July 28, 2020Assignee: DIC CORPORATIONInventors: Masahiro Horiguchi, Yutaka Kadomoto, Tetsuo Kusumoto
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Patent number: 10647662Abstract: In light of requests to reduce or reverse the wavelength dispersion of the birefringence of a phase-retardation film in order to increase the viewing angle of a liquid crystal display, the present invention provides a polymerizable compound that reduces, for example, the likelihood of crystals precipitating in a polymerizable composition including the polymerizable compound and enables the polymerizable composition to have high preservation stability and a polymerizable composition including the polymerizable compound which reduces the likelihood of inconsistencies being formed in a film-like polymer produced by polymerizing the polymerizable composition. Another object of the present invention is to provide a polymer produced by polymerizing the polymerizable composition and an optically anisotropic body including the polymer.Type: GrantFiled: January 7, 2016Date of Patent: May 12, 2020Assignee: DIC CORPORATIONInventors: Yutaka Kadomoto, Masahiro Horiguchi, Akihiro Koiso
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Patent number: 10597371Abstract: The present invention provides a polymerizable compound having high storage stability without causing crystal precipitation when added to a polymerizable composition. The present invention also provides a polymerizable composition containing the compound. When the filmy polymer produced through polymerization of the polymerizable composition is irradiated with UV light, it hardly discolors or peels from substrate. Further, the present invention provides a polymer produced through polymerization of the polymerizable composition and an optically anisotropic body using the polymer.Type: GrantFiled: February 16, 2016Date of Patent: March 24, 2020Assignee: DIC CORPORATIONInventors: Masahiro Horiguchi, Yutaka Kadomoto
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Patent number: 10423033Abstract: [Problem] The purpose of the present invention is to provide a method for developing a large anchoring energy by simple processes. [Solution] There is provided a method for manufacturing a liquid crystal alignment film, comprising: a process (I) of mixing a solvent with a photoresponsive polymer to prepare a photoresponsive polymer solution; a process (II) of coating the photoresponsive polymer solution on a substrate, followed by drying at 50 to 100° C. for 1 to 3 minutes and then drying at 120° C. to 180° C. for 5 to 75 minutes to form a coating film; and a process (III) of adjusting a temperature of the coating film while the coating film is irradiated with a light of 200 to 350 nm to 40° C. to 100° C.Type: GrantFiled: September 30, 2014Date of Patent: September 24, 2019Assignee: DIC CORPORATIONInventors: Fumiaki Kodera, Kunihiko Kotani, Kazunori Maruyama, Yutaka Kadomoto, Masanao Takashima, Hiroshi Hasebe, Yoshitaka Saito
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Publication number: 20180361326Abstract: The present invention aims to provide a gas-selective permeable membrane that has gas permeability and gas selectivity capable of highly separating a target gas from other gases, is less likely to be influenced by the temperature condition employed, and is excellent in strength and handleability. The invention uses at least one or more polymerizable compounds to provide a gas-selective permeable film that contains a polymer having an optically uniaxial or multiaxial molecular alignment and to provide a laminate including a gas-permeable substrate and the permeable membrane laminated thereon.Type: ApplicationFiled: November 8, 2016Publication date: December 20, 2018Applicant: DIC CorporationInventors: Yasuhiro Kuwana, Kouichi Endo, Isa Nishiyama, Susumu Matsuzaki, Yutaka Kadomoto
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Publication number: 20180319755Abstract: There is provided a polymerizable composition, by which discoloration or alignment defects are less likely to occur when a filmy polymer, which is obtained by adding a polymerizable compound to the polymerizable composition and polymerizing this composition, is irradiated with ultraviolet light. There are also provided a polymer obtained by polymerizing the polymerizable composition, and an optically anisotropic body using the polymer. The present invention provides a polymerizable low-wavelength dispersive or polymerizable reverse-wavelength dispersive compound having a partial structure represented by Formula (Z-0). Further, the present invention provides a composition containing the compound; a polymer obtained by polymerizing the composition; and an optically anisotropic body obtained by using the polymer.Type: ApplicationFiled: November 9, 2015Publication date: November 8, 2018Applicant: DIC CORPORATIONInventors: Yan Teng, Masahiro Horiguchi, Yutaka Kadomoto, Akihiro Koiso, Masanao Hayashi, Yoshitaka Saitou, Zhimin Li
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Publication number: 20180112022Abstract: Provided are a polymerizable composition in which precipitation or the like of crystals does not occur and which has high storage stability; and a polymerizable composition in which unevenness is unlikely to occur when a film-like polymerized material obtained by polymerizing the composition is prepared. Further, provided are an optically anisotropic body, a retardation film, an optical compensation film, an anti-reflective film, a lens, and a lens sheet which are formed of the polymerizable composition, a liquid crystal display element, an organic light-emitting display element, a lighting element, an optical component, a colorant, a security marking, a member for emitting a laser, a polarizing film, a coloring material, and a printed matter for which the polymerizable composition is used.Type: ApplicationFiled: January 14, 2016Publication date: April 26, 2018Applicant: DIC CorporationInventors: Toru Ishii, Yasuhiro Kuwana, Masahiro Horiguchi, Yutaka Kadomoto, Tetsuo Kusumoto
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Publication number: 20180066189Abstract: Provided are a polymerizable composition in which precipitation or the like of crystals does not occur and which has high storage stability; and a polymerizable composition in which unevenness is unlikely to occur when a film-like polymerized material obtained by polymerizing the composition is prepared. Further, provided are an optically anisotropic body, a retardation film, an optical compensation film, an anti-reflective film, a lens, and a lens sheet which are formed of the polymerizable composition, a liquid crystal display element, an organic light-emitting display element, a lighting element, an optical component, a colorant, a security marking, a member for emitting a laser, a polarizing film, a coloring material, and a printed matter for which the polymerizable composition is used.Type: ApplicationFiled: January 14, 2016Publication date: March 8, 2018Applicant: DIC CorporationInventors: Toru Ishii, Yasuhiro Kuwana, Masahiro Horiguchi, Yutaka Kadomoto, Tetsuo Kusumoto
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Publication number: 20180022716Abstract: The present invention provides a polymerizable compound having high storage stability without causing crystal precipitation when added to a polymerizable composition. The present invention also provides a polymerizable composition containing the compound. When the filmy polymer produced through polymerization of the polymerizable composition is irradiated with UV light, it hardly discolors or peels from substrate. Further, the present invention provides a polymer produced through polymerization of the polymerizable composition and an optically anisotropic body using the polymer.Type: ApplicationFiled: February 16, 2016Publication date: January 25, 2018Applicant: DIC CorporationInventors: Masahiro Horiguchi, Yutaka Kadomoto
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Publication number: 20180002276Abstract: In light of requests to reduce or reverse the wavelength dispersion of the birefringence of a phase-retardation film in order to increase the viewing angle of a liquid crystal display, the present invention provides a polymerizable compound that reduces, for example, the likelihood of crystals precipitating in a polymerizable composition including the polymerizable compound and enables the polymerizable composition to have high preservation stability and a polymerizable composition including the polymerizable compound which reduces the likelihood of inconsistencies being formed in a film-like polymer produced by polymerizing the polymerizable composition. Another object of the present invention is to provide a polymer produced by polymerizing the polymerizable composition and an optically anisotropic body including the polymer.Type: ApplicationFiled: January 7, 2016Publication date: January 4, 2018Applicant: DIC CorporationInventors: Yutaka Kadomoto, Masahiro Horiguchi, Akihiro Koiso
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Publication number: 20170306233Abstract: The present invention provides a polymerizable compound that reduces, for example, the likelihood of crystals precipitating in a polymerizable composition including the polymerizable compound and enables the polymerizable composition to have high preservation stability and a polymerizable composition including the polymerizable compound which reduces the likelihood of inconsistencies being formed in a film-like polymer produced by polymerizing the polymerizable composition. Also provided are a polymer-produced by polymerizing the polymerizable composition and an optically anisotropic body including the polymer. The present invention provides the compound represented by General Formula (I), a composition including the compound, a polymer produced by polymerizing the composition, and an optically anisotropic body including the polymer.Type: ApplicationFiled: October 6, 2015Publication date: October 26, 2017Applicant: DIC CorporationInventors: Masahiro Horiguchi, Yutaka Kadomoto, Tetsuo Kusumoto
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Patent number: 9708535Abstract: An object of the present invention is to provide a photoalignment layer with a more reliable absorption anisotropy parameter as a photoalignment layer that allows for reduced AC image-sticking. Specifically, provided is a photoalignment layer, obtained by exposure to polarized UV radiation, that has a maximum ?A (=A1?A2, where A1 is the absorbance in a direction parallel to a vibration direction of the polarized UV radiation, and A2 is the absorbance in a direction parallel to the vibration direction of the polarized UV radiation) of 0.35 or more per micrometer of layer thickness in a range of 230 to 380 nm.Type: GrantFiled: May 26, 2015Date of Patent: July 18, 2017Assignee: DIC CORPORATIONInventors: Hiroshi Hasebe, Fumiaki Kodera, Masanao Takashima, Isa Nishiyama, Hiroyuki Itou, Yutaka Kadomoto, Kazuki Obi, Yoshitaka Saitou, Yuuichirou Tani, Keisuke Fujisawa
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Publication number: 20170088777Abstract: An object of the present invention is to provide a photoalignment layer with a more reliable absorption anisotropy parameter as a photoalignment layer that allows for reduced AC image-sticking. Specifically, provided is a photoalignment layer, obtained by exposure to polarized UV radiation, that has a maximum ?A (=A1?A2, where A1 is the absorbance in a direction parallel to a vibration direction of the polarized UV radiation, and A2 is the absorbance in a direction parallel to the vibration direction of the polarized UV radiation) of 0.35 or more per micrometer of layer thickness in a range of 230 to 380 nm.Type: ApplicationFiled: May 26, 2015Publication date: March 30, 2017Applicant: DIC CORPORATIONInventors: Hiroshi Hasebe, Fumiaki Kodera, Masanao Takashima, Isa Nishiyama, Hiroyuki Itou, Yutaka Kadomoto, Kazuki Obi, Yoshitaka Saitou, Yuuichirou Tani, Keisuke Fujisawa