Patents by Inventor Shinpei YOSHIDA
Shinpei YOSHIDA 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: 11952154Abstract: A binding machine includes: a wire feeding unit; a curl forming unit; a butting part; a cutting unit; and a binding unit. The binding unit includes: a rotary shaft; a wire engaging body configured to move in an axis direction of the rotary shaft and to engage the wire in a first operation area in the axis direction, and to move in the axis direction and to twist the wire in a second operation area in the axis direction; a rotation regulation part; and a tension applying part configured to perform, in the second operation area, an operation of applying tension on the wire engaged by the wire engaging body in the first operation area. The tension applied to the wire is equal to or larger than 10% and equal to or smaller than 50% with respect to a maximum tensile load of the wire.Type: GrantFiled: February 10, 2021Date of Patent: April 9, 2024Assignee: MAX CO., LTD.Inventors: Kouichirou Morimura, Yusuke Yoshida, Ichiro Kusakari, Osamu Itagaki, Shinpei Sugihara
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Patent number: 11947142Abstract: Provided is an optical film in which black tinting is suppressed in front and oblique directions when the optical film is used as a circularly polarizing plate in an organic EL display device. The optical film is an elongated optical film having optically anisotropic layers (A), (B), and (C), in this order, in which layer (A) is formed by fixing a vertically aligned disk-like liquid crystal compound, layer (B) is formed by fixing a twist-aligned rod-like liquid crystal compound with a thickness direction as a helical axis, layer (C) is formed by fixing a vertically aligned rod-like liquid crystal compound, an in-plane slow axis of layer (A) is parallel to an in-plane slow axis on a surface of layer (B) on a layer (A) side, and layers (A) and (B) are disposed such that the in-plane slow axes thereof satisfy a predetermined positional relationship.Type: GrantFiled: February 15, 2023Date of Patent: April 2, 2024Assignee: FUJIFILM CorporationInventors: Yuta Takahashi, Shinpei Yoshida
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Patent number: 11860338Abstract: Provided is an optical film with a resin substrate adhered to an optically anisotropic layer and suppression of occurrence of optical defects in the optically anisotropic layer. The optical film has a resin substrate having an alignment regulating force and an optically anisotropic layer arranged thereon, in which the optically anisotropic layer contains a liquid crystal compound and a compound having a heteroatom different from the liquid crystal compound, and in a case where a surface of the optical film on an optically anisotropic layer side thereof is a first surface and a surface of the optical film on a resin substrate side thereof is a second surface, and components of the optical film in a depth direction are analyzed by time-of-flight secondary ion mass spectrometry while irradiating the optical film with an ion beam from the first surface toward the second surface, the obtained profile satisfies a predetermined requirement.Type: GrantFiled: February 14, 2022Date of Patent: January 2, 2024Assignee: FUJIFILM CorporationInventors: Akira Maruyama, Keisuke Kodama, Tetsuro Otsuka, Hiroyuki Hagio, Yuta Takahashi, Shinpei Yoshida, Satoshi Yanokuchi
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Patent number: 11860339Abstract: The present invention provides an optically anisotropic layer which has a plurality of regions in which alignment states of a liquid crystal compound are different in a thickness direction and in which peeling is unlikely to occur in the layer. The optically anisotropic layer of the present invention is an optically anisotropic layer formed of a liquid crystal compound, in which the optically anisotropic layer contains a leveling agent and satisfies a predetermined requirement in a profile of a secondary ion intensity derived from the leveling agent in a depth direction, which is obtained by analyzing components of the optically anisotropic layer in a depth direction by time-of-flight secondary ion mass spectrometry while irradiating the optically anisotropic layer with an ion beam from one surface of the optically anisotropic layer to the other surface of the optically anisotropic layer.Type: GrantFiled: January 31, 2023Date of Patent: January 2, 2024Assignee: FUJIFILM CorporationInventors: Yuta Fukushima, Shinpei Yoshida, Yuta Takahashi, Keisuke Kodama
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Patent number: 11841521Abstract: Provided is an optical film that has a thin thickness, is suitable in terms of continuous productivity, and exhibits suppressed tinting of black color in a front direction and an oblique direction in a case of being used as a circularly polarizing plate in an organic EL display device; a circularly polarizing plate; and an organic EL display device. The optical film includes an elongated support and a first, a second, and a third optically anisotropic layer in this order, in which a thickness of the elongated support is 10 to 45 ?m, the first optically anisotropic layer is formed of a rod-like liquid crystal compound, the second optically anisotropic layer is formed by fixing a twist-aligned liquid crystal compound having a helical axis in a thickness direction, the third optically anisotropic layer is formed of a liquid crystal compound, and each optically anisotropic layer exhibits predetermined optical characteristics.Type: GrantFiled: March 18, 2022Date of Patent: December 12, 2023Assignee: FUJIFILM CorporationInventors: Satoshi Yanokuchi, Shinpei Yoshida, Yuta Takahashi
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Patent number: 11834600Abstract: Provided is a liquid crystal composition capable of forming an optically anisotropic layer, and method thereof, in which a variation in a twisted angle of liquid crystal compound in an in-plane direction is suppressed an optical film, and a circularly polarizing plate for an organic EL display. The liquid crystal composition contains a liquid crystal, optically active compound A which is a photosensitive optically active compound whose helical twisting power changes upon irradiation with light and has a molar absorption coefficient of 5,000 M?1·cm?1 or more with respect to light having a wavelength of 365 nm, and an optically active compound B having a molar absorption coefficient with respect to light having a wavelength of 365 nm smaller than the molar absorption coefficient of the optically active compound A, in which a mass content ratio of the optically active compound A to the liquid crystal compound is less than 0.01.Type: GrantFiled: February 14, 2022Date of Patent: December 5, 2023Assignee: FUJIFILM CorporationInventors: Keisuke Kodama, Yuki Fukushima, Shunya Katoh, Yuta Takahashi, Shinpei Yoshida, Satoshi Yanokuchi, Akira Maruyama, Hiroyuki Hagio
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Publication number: 20230225176Abstract: The present invention provides a polarizing plate that exhibits excellent black tightness in a front direction even after an organic EL display device obtained by bonding the polarizing plate to an organic EL display panel is exposed to a high temperature environment for a long period of time; and an organic EL display device. The polarizing plate of the present invention is a polarizing plate having a polarizer formed of a composition containing a first liquid crystal compound and a dichroic substance, and an optically anisotropic layer disposed adjacent to the polarizer and formed of a composition containing a second liquid crystal compound, in which a content of the dichroic substance in the polarizer is 40% by mass or less with respect to a total mass of the polarizer.Type: ApplicationFiled: March 2, 2023Publication date: July 13, 2023Applicant: FUJIFILM CorporationInventors: Yasukazu KUWAYAMA, Yuta FUKUSHIMA, Shinpei YOSHIDA
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Publication number: 20230204838Abstract: Provided is an optical film in which black tinting is suppressed in front and oblique directions when the optical film is used as a circularly polarizing plate in an organic EL display device. The optical film is an elongated optical film having optically anisotropic layers (A), (B), and (C), in this order, in which layer (A) is formed by fixing a vertically aligned disk-like liquid crystal compound, layer (B) is formed by fixing a twist-aligned rod-like liquid crystal compound with a thickness direction as a helical axis, layer (C) is formed by fixing a vertically aligned rod-like liquid crystal compound, an in-plane slow axis of layer (A) is parallel to an in-plane slow axis on a surface of layer (B) on a layer (A) side, and layers (A) and (B) are disposed such that the in-plane slow axes thereof satisfy a predetermined positional relationship.Type: ApplicationFiled: February 15, 2023Publication date: June 29, 2023Applicant: FUJIFILM CorporationInventors: Yuta TAKAHASHI, Shinpei YOSHIDA
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Publication number: 20230194763Abstract: Provided is an optical film having excellent adhesiveness; a circularly polarizing plate; and an organic EL display device. The optical film has three layers of an optically anisotropic layer (A), an optically anisotropic layer (B), and an optically anisotropic layer (C), each of which is formed by fixing an aligned liquid crystal compound, in which at least one of the optically anisotropic layer (A) or the optically anisotropic layer (B) is directly laminated with the optically anisotropic layer (C), the optically anisotropic layer (C) is a layer that contains a photo-alignment polymer having a photo-alignment group and is formed by fixing a vertically aligned rod-like liquid crystal compound or a horizontally aligned disk-like liquid crystal compound, and the photo-alignment polymer is present on the surface of the optically anisotropic layer (C) in contact with the optically anisotropic layer (A) or the optically anisotropic layer (B).Type: ApplicationFiled: February 15, 2023Publication date: June 22, 2023Applicant: FUJIFILM CorporationInventors: Yuta TAKAHASHI, Shinpei YOSHIDA
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Publication number: 20230200192Abstract: A circularly polarizing plate in which tint unevenness in an oblique direction can be suppressed when the circularly polarizing plate is applied to an organic EL display device. The circularly polarizing plate includes a polarizer and a phase difference film laminated on one surface side of the polarizer, in which it has a moisture content of 1.8% or less, an absolute value of a chromaticity a* and chromaticity b* are 10 or less at any azimuthal angle, in a case where the chromaticity a* and b* are measured at all azimuthal angles with a polar angle of 40° from a normal direction of the circularly polarizing plate of a laminate when a reflectivity is measured at all azimuthal angles with a polar angle of 40° from the normal direction of the circularly polarizing plate of the laminate, the reflectivity is 3.0% or less at any azimuthal angle.Type: ApplicationFiled: February 15, 2023Publication date: June 22, 2023Applicant: FUJIFILM CorporationInventors: Yoshiaki HISAKADO, Yuta TAKAHASHI, Shinpei YOSHIDA
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Publication number: 20230176252Abstract: The present invention provides an optically anisotropic layer which has a plurality of regions in which alignment states of a liquid crystal compound are different in a thickness direction and in which peeling is unlikely to occur in the layer. The optically anisotropic layer of the present invention is an optically anisotropic layer formed of a liquid crystal compound, in which the optically anisotropic layer contains a leveling agent and satisfies a predetermined requirement in a profile of a secondary ion intensity derived from the leveling agent in a depth direction, which is obtained by analyzing components of the optically anisotropic layer in a depth direction by time-of-flight secondary ion mass spectrometry while irradiating the optically anisotropic layer with an ion beam from one surface of the optically anisotropic layer to the other surface of the optically anisotropic layer.Type: ApplicationFiled: January 31, 2023Publication date: June 8, 2023Applicant: FUJIFILM CorporationInventors: Yuta FUKUSHIMA, Shinpei YOSHIDA, Yuta TAKAHASHI, Keisuke KODAMA
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Publication number: 20230176438Abstract: Provided is an optically anisotropic layer formed of a liquid crystal compound, which includes first and second layers in direct contact along a thickness direction, an alignment state of the liquid crystal compound in the first layer is different from the second layer, and the optically anisotropic layer satisfies a relationship of Expression (2A) Xmax/Xmin<1.10 where a region within a square having a largest size that can be drawn on a surface of the optically anisotropic layer is subdivided into 64 square-shaped sub-regions having the same area, a thickness d1 of the first layer and a thickness d2 of the second layer at a center position of the sub-region are obtained, X represented by Expression (1) X=d1/(d1+d2) for each sub-region is calculated, and among the calculated 64 X's, a maximum value is defined as Xmax and a minimum value is defined as Xmin.Type: ApplicationFiled: January 31, 2023Publication date: June 8, 2023Applicant: FUJIFILM CorporationInventors: Shinpei YOSHIDA, Yuta TAKAHASHI, Kentaro YAMURA, Keisuke KODAMA
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Publication number: 20230120119Abstract: Provided is a circularly polarizing plate with which, in a case where a display device obtained by disposing the circularly polarizing plate on a display element is viewed from an oblique direction while the direction thereof is being changed, the display device exhibits little change in tint and has a low reflectivity; and an organic electroluminescent display device. The circularly polarizing plate includes a polarizer and an optically anisotropic layer, in which the optically anisotropic layer is a layer formed by fixing a liquid crystal compound having reverse wavelength dispersibility twist-aligned with a thickness direction as a helical axis, the molecular axis of the liquid crystal compound in the optically anisotropic layer is horizontal to the surface of the optically anisotropic layer, and the twisted angle of the twist-aligned liquid crystal compound is 15° to 360°.Type: ApplicationFiled: December 19, 2022Publication date: April 20, 2023Applicant: FUJIFILM CorporationInventors: Shinpei YOSHIDA, Yuta TAKAHASHI
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Publication number: 20230113900Abstract: Provided are a circularly polarizing plate in which the black tint variation is suppressed in a case where a display device obtained by attaching the circularly polarizing plate to a display element is displayed in black and is then viewed from the front direction in a sunlight environment, and a display device. The circularly polarizing plate is has a polarizer, a first optically anisotropic layer, and a second optically anisotropic layer in this order, in which the first optically anisotropic layer is a layer formed by fixing a liquid crystal compound twist-aligned along a helical axis extending in a thickness direction, the second optically anisotropic layer is an A-plate, an absorption axis of the polarizer and an in-plane slow axis of the second optically anisotropic layer are parallel or orthogonal to each other, and the first optically anisotropic layer and the second optically anisotropic layer exhibit predetermined optical properties.Type: ApplicationFiled: September 26, 2022Publication date: April 13, 2023Applicant: FUJIFILM CorporationInventors: Shinpei YOSHIDA, Yuta TAKAHASHI
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Publication number: 20220204855Abstract: Provided is a liquid crystal composition capable of forming an optically anisotropic layer, and method thereof, in which a variation in a twisted angle of liquid crystal compound in an in-plane direction is suppressed an optical film, and a circularly polarizing plate for an organic EL display. The liquid crystal composition contains a liquid crystal, optically active compound A which is a photosensitive optically active compound whose helical twisting power changes upon irradiation with light and has a molar absorption coefficient of 5,000 M?1·cm?1 or more with respect to light having a wavelength of 365 nm, and an optically active compound B having a molar absorption coefficient with respect to light having a wavelength of 365 nm smaller than the molar absorption coefficient of the optically active compound A, in which a mass content ratio of the optically active compound A to the liquid crystal compound is less than 0.01.Type: ApplicationFiled: February 14, 2022Publication date: June 30, 2022Applicant: FUJIFILM CorporationInventors: Keisuke KODAMA, Yuki FUKUSHIMA, Shunya KATOH, Yuta TAKAHASHI, Shinpei YOSHIDA, Satoshi YANOKUCHI, Akira MARUYAMA, Hiroyuki HAGIO
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Publication number: 20220206203Abstract: Provided is an optical film that has a thin thickness, is suitable in terms of continuous productivity, and exhibits suppressed tinting of black color in a front direction and an oblique direction in a case of being used as a circularly polarizing plate in an organic EL display device; a circularly polarizing plate; and an organic EL display device. The optical film includes an elongated support, and a first, a second, and a third optically anisotropic layer in this order, in which a thickness of the elongated support is 10 to 45 ?m, the first optically anisotropic layer is formed of a rod-like liquid crystal compound, the second optically anisotropic layer is formed by fixing a twist-aligned liquid crystal compound having a helical axis in a thickness direction, the third optically anisotropic layer is formed of a liquid crystal compound, and each optically anisotropic layer exhibits predetermined optical characteristics.Type: ApplicationFiled: March 18, 2022Publication date: June 30, 2022Applicant: FUJIFILM CorporationInventors: Satoshi YANOKUCHI, Shinpei YOSHIDA, Yuta TAKAHASHI
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Publication number: 20220171096Abstract: Provided is an optical film with a resin substrate adhered to an optically anisotropic layer and suppression of occurrence of optical defects in the optically anisotropic layer. The optical film has a resin substrate having an alignment regulating force and an optically anisotropic layer arranged thereon, in which the optically anisotropic layer contains a liquid crystal compound and a compound having a heteroatom different from the liquid crystal compound, and in a case where a surface of the optical film on an optically anisotropic layer side thereof is a first surface and a surface of the optical film on a resin substrate side thereof is a second surface, and components of the optical film in a depth direction are analyzed by time-of-flight secondary ion mass spectrometry while irradiating the optical film with an ion beam from the first surface toward the second surface, the obtained profile satisfies a predetermined requirement.Type: ApplicationFiled: February 14, 2022Publication date: June 2, 2022Applicant: FUJIFILM CorporationInventors: Akira MARUYAMA, Keisuke KODAMA, Tetsuro OTSUKA, Hiroyuki HAGIO, Yuta TAKAHASHI, Shinpei YOSHIDA, Satoshi YANOKUCHI
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Publication number: 20220171109Abstract: Provided is a method for producing an optically anisotropic layer, with a polarizer, which has a plurality of regions in which alignment states of a liquid crystal compound are fixed and different from one another; laminate, with a polarizer; and a composition. The method includes: 1) forming a composition layer containing a chiral agent containing at least a photosensitive chiral agent and a polymerizable liquid crystal compound on a substrate, 2) subjecting the composition layer to a heat treatment, 3) subjecting the composition layer to light irradiation under oxygen concentration of 1% by volume or more, after step 2), and 4) subjecting the composition layer to a curing treatment to form an optically anisotropic layer, and 5) carrying out step 3) under heating conditions, or subjecting the composition layer to a heat treatment between step 3) and step 4), with a predetermined amount of chiral agent.Type: ApplicationFiled: February 14, 2022Publication date: June 2, 2022Applicant: FUJIFILM CorporationInventors: Yuta TAKAHASHI, Shinpei YOSHIDA, Satoshi YANOKUCHI, Akira MARUYAMA, Keisuke KODAMA, Yuta FUKUSHIMA, Shunya KATOH, Yuki FUKUSHIMA, Hiroyuki HAGIO
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Publication number: 20210366221Abstract: A paper sheet processing device includes: an input unit into which paper sheets are input from the outside; an identification unit for identifying the paper sheets fed out from the input unit while allowing them to pass through in a first direction and identifying the paper sheets while allowing them to pass through in a second direction opposite to the first direction; a temporary storage unit for temporarily storing the paper sheets identified as being acceptable by the identification unit; a payout unit for accommodating the paper sheets identified as being unacceptable by the identification unit so as to be able to be taken out to the outside; and a storage unit for storing the paper sheets fed out from the temporary storage unit and identified by the identification unit while being allowed to pass through the identification unit in the second direction, wherein the paper sheets fed out from the temporary storage unit and identified by the identification unit while being allowed to pass through the identiType: ApplicationFiled: January 21, 2019Publication date: November 25, 2021Inventors: Shinpei YOSHIDA, Motonori SHINAGAWA, Motoki SHIMONO, Yuji SUGIYAMA
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Patent number: 11139458Abstract: An organic EL display device is provided in which a change in tint is reduced in a bent portion. This organic EL display device is an organic electroluminescent display device including, from a viewing side, a circularly polarizing plate, a first adhesion layer, and a bendable organic electroluminescent display panel, in which the circularly polarizing plate includes, from the viewing side, a linear polarizer, a second adhesion layer, and a phase difference layer functioning as a ?/4 plate, a complex modulus of elasticity of the first adhesion layer is 2.50×105 Pa or less, the first adhesion layer is thicker than the second adhesion layer, and an absorption axis of the linear polarizer is positioned at an angle of 0°±30° or 90°±30° with respect to an extension direction of a ridge line formed in a case where the organic electroluminescent display device is bent.Type: GrantFiled: January 23, 2020Date of Patent: October 5, 2021Assignee: FUJIFILM CorporationInventors: Toshihiro Konishi, Kenta Yamazaki, Shinpei Yoshida, Ryo Satake, Hiroyuki Okusa