Patents by Inventor Akihito Kagotani
Akihito Kagotani 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: 10944735Abstract: An authentication apparatus including an input interface to acquires an image of a hologram label on an access object including key information; a processing history storage table that correlates a first image with the key information and stores the correlated image; an information determination circuit that refers to the processing history storage table, based on key information included in a second image that is being acquired after the first image, and determines whether the key information corresponds to key information of the second image; and a processing determination circuit that compares feature data of the second image that is not key information with feature data of the first image that is not key information in response to the information determination circuit determining the key information of the first image as being present, and uses the results of the comparison to determine whether to execute processing using the second image.Type: GrantFiled: April 30, 2020Date of Patent: March 9, 2021Assignee: TOPPAN PRINTING CO., LTD.Inventors: Soko Koda, Akihito Kagotani
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Patent number: 10895672Abstract: The optical element has transmissivity in a first direction, and includes a plurality of first members each having a first surface that forms an element of first information. The first surface faces a second direction orthogonal to the first direction.Type: GrantFiled: March 28, 2018Date of Patent: January 19, 2021Assignee: TOPPAN PRINTING CO., LTD.Inventors: Akihito Kagotani, Soko Koda
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OPTICAL ELEMENT, TRANSFER FOIL, AUTHENTICATION MEDIUM, AND METHOD OF VERIFYING AUTHENTICATION MEDIUM
Publication number: 20210001659Abstract: A subwavelength grating displaying a colored image exhibiting a color corresponding to a grating period of a subwavelength grating in reflection directions including a specular reflection direction. A relief surface displaying a reflection image in monochromatic reflected light in reflection directions including a direction different from the specular reflection direction. An optical element has a first state in which neither a colored image nor a reflection image is displayed, a second state in which the colored image is mainly displayed, and a third state in which the reflection image is mainly displayed. A plane in which the optical element is disposed and a plane including a line of sight of an observer form an observation angle therebetween. The optical element is observed in any of the first, second and third states according to the observation angle.Type: ApplicationFiled: September 15, 2020Publication date: January 7, 2021Applicant: TOPPAN PRINTING CO., LTD.Inventors: Hanako YAMAMOTO, Keitaro SUGIHARA, Tomoko TASHIRO, Akihito KAGOTANI -
Publication number: 20200356048Abstract: A hologram that includes a formation layer and a reflection layer that are laminated. The formation layer has an optical phase modulation structure on a first interface in contact with the reflection layer. When reference light emitted from a point light source enters through a second interface different from the first interface of the formation layer, the entirety or part of an image to be reconstructed by the optical phase modulation structure is reconstructed as spatial information on the point light source side relative to the second interface.Type: ApplicationFiled: July 24, 2020Publication date: November 12, 2020Applicant: TOPPAN PRINTING CO., LTD.Inventors: Soko KODA, Akihito KAGOTANI, Tomoyuki SHIRASAKI, Noriko HARASHIMA
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Patent number: 10763456Abstract: A front plate for a lighting device includes a translucent substrate having a first surface, a high refractive index layer formed on the first surface of the translucent substrate and having a refractive index higher than a refractive index of the translucent substrate, and an electrically conductive light reflection layer formed on a surface of the high refractive index layer on an opposite side of the translucent substrate. The electrically conductive light reflection layer is formed on a portion corresponding to a non-luminous region around a luminous region on the surface of the high refractive index layer.Type: GrantFiled: August 8, 2016Date of Patent: September 1, 2020Assignee: TOPPAN PRINTING CO., LTD.Inventor: Akihito Kagotani
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Publication number: 20200259813Abstract: An authentication apparatus including an input interface to acquires an image of a hologram label on an access object including key information; a processing history storage table that correlates a first image with the key information and stores the correlated image; an information determination circuit that refers to the processing history storage table, based on key information included in a second image that is being acquired after the first image, and determines whether the key information corresponds to key information of the second image; and a processing determination circuit that compares feature data of the second image that is not key information with feature data of the first image that is not key information in response to the information determination circuit determining the key information of the first image as being present, and uses the results of the comparison to determine whether to execute processing using the second image.Type: ApplicationFiled: April 30, 2020Publication date: August 13, 2020Applicant: TOPPAN PRINTING CO., LTD.Inventors: Soko KODA, Akihito KAGOTANI
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Publication number: 20200156399Abstract: There is provided an optical structure having a quantization phase difference structure on one surface of a quantization phase difference structure layer, wherein in the quantization phase difference structure, a plurality of quantization projecting portions in a constant size and a plurality of quantization recessed portions in a constant size are aligned, wherein a multiple diffraction region has the quantization phase difference structure where ribbed projecting portions, in which the quantization projecting portions are aligned in one direction, are arranged adjacent to and alternately with groove-like recessed portions, in which the quantization recessed portions are aligned parallel to the ribbed projecting portions, and wherein the multiple diffraction region is a quantization phase difference structure configured to reproduce a plurality of reproduction points discrete in one direction and arranged regularly.Type: ApplicationFiled: January 24, 2020Publication date: May 21, 2020Applicant: TOPPAN PRINTING CO., LTD.Inventors: Akihito Kagotani, Kazuhiro Yashiki
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Patent number: 10651415Abstract: An organic EL (electroluminescent) device includes a translucent substrate, a transparent electrode, a luminescent layer, and a cathode placed over one surface of the translucent substrate, and a light extraction film having unevenness placed on the other surface. The surface of the cathode facing the luminescent layer has a plurality of recesses or protrusions. The Fourier transform image of the surface of the cathode facing the luminescent layer has a surface plasmon absorption suppression area including a spatial frequency v obtained from Eq. (I) and a light scattering area not including spatial frequencies equal to or greater than the spatial frequency v.Type: GrantFiled: November 27, 2017Date of Patent: May 12, 2020Assignee: TOPPAN PRINTING CO., LTD.Inventors: Akihito Kagotani, Toshiki Toda
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Publication number: 20190293492Abstract: A phase modulation structure includes a recording surface including phase angle recording regions in a plurality of calculated element regions corresponding to reconstruction points of an image on a one-to-one basis, each phase angle recording region being formed of a plurality of unit blocks in each of which a phase angle is recorded, the phase angle being calculated based on a phase that is a sum of a plurality of phases of light from the corresponding reconstruction points; and a representative area that is one of divisions of the calculated element region, the representative area being obtained by radially dividing the calculated element region centered on a point on the calculated element region, the point being obtained by extending a normal line from the corresponding reconstruction point to the calculated element region on the recording surface.Type: ApplicationFiled: June 14, 2019Publication date: September 26, 2019Applicant: TOPPAN PRINTING CO., LTD.Inventor: Akihito KAGOTANI
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Publication number: 20190279403Abstract: An optical film including a recording surface on which a plurality of unit blocks is disposed at regular intervals. For these unit blocks, phase components of light from a reconstruction point are calculated. The recording surface includes a calculated element region provided with an array of the unit blocks for which phase components of light from the reconstruction point are calculated for reproduction of an image. A first image is a monotone reconstruction image having even brightness, and a second image is a grayscale image having brightness gradation.Type: ApplicationFiled: May 24, 2019Publication date: September 12, 2019Applicant: TOPPAN PRINTING CO., LTD.Inventors: Akihito KAGOTANI, Toshiki TODA
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Publication number: 20190094802Abstract: According to one embodiment, there is provided an optical film with a recording surface, the recording surface including: a computation element section in which a phase component of light from each reconstruction point of a reconstructed image is computed, the computation element section corresponding to each reconstruction point one by one; a phase angle recording area in which a phase angle computed based on the phase component is recorded; and a phase angle non-recording area in which the phase angle is not recorded, the phase angle computed based on the phase component being recorded in an overlapping area where the computation element section and the phase angle recording area overlap each other.Type: ApplicationFiled: November 28, 2018Publication date: March 28, 2019Applicant: TOPPAN PRINTING CO., LTD.Inventor: Akihito KAGOTANI
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Publication number: 20180217307Abstract: The optical element has transmissivity in a first direction, and includes a plurality of first members each having a first surface that forms an element of first information. The first surface faces a second direction orthogonal to the first direction.Type: ApplicationFiled: March 28, 2018Publication date: August 2, 2018Applicant: TOPPAN PRINTING CO., LTD.Inventors: Akihito KAGOTANI, Soko KODA
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Publication number: 20180076410Abstract: An organic EL (electroluminescent) device includes a translucent substrate, a transparent electrode, a luminescent layer, and a cathode placed over one surface of the translucent substrate, and a light extraction film having unevenness placed on the other surface. The surface of the cathode facing the luminescent layer has a plurality of recesses or protrusions. The Fourier transform image of the surface of the cathode facing the luminescent layer has a surface plasmon absorption suppression area including a spatial frequency v obtained from Eq. (I) and a light scattering area not including spatial frequencies equal to or greater than the spatial frequency v.Type: ApplicationFiled: November 27, 2017Publication date: March 15, 2018Applicant: TOPPAN PRINTING CO., LTD.Inventors: Akihito KAGOTANI, Toshiki TODA
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Patent number: 9763288Abstract: An EL panel including: a light-transmissive substrate; an EL element including a light-emitting medium layer interposed between a cathode and an anode, the EL element being provided on one surface of the light-transmissive substrate; and a protection sheet on the other surface of the light-transmissive substrate of the EL element. The protection sheet has a surface opposite to the light-transmissive substrate, the shape of the surface includes rounded convex shapes and prism shapes. Each of the rounded shapes has an apex that is a center point of a cross-section farthest from a bottom surface where the cross-section is parallel to the bottom surface of the unit convex shape and the area becomes smaller in a direction from the bottom surface of the rounded convex shape to a top portion thereof.Type: GrantFiled: July 8, 2015Date of Patent: September 12, 2017Assignee: TOPPAN PRINTING CO., LTD.Inventors: Kohhei Moronaga, Hideaki Homma, Akihito Kagotani
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Publication number: 20160343991Abstract: A front plate for a lighting device includes a translucent substrate having a first surface, a high refractive index layer formed on the first surface of the translucent substrate and having a refractive index higher than a refractive index of the translucent substrate, and an electrically conductive light reflection layer formed on a surface of the high refractive index layer on an opposite side of the translucent substrate. The electrically conductive light reflection layer is formed on a portion corresponding to a non-luminous region around a luminous region on the surface of the high refractive index layer.Type: ApplicationFiled: August 8, 2016Publication date: November 24, 2016Applicant: TOPPAN PRINTING CO., LTD.Inventor: Akihito KAGOTANI
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Publication number: 20150312973Abstract: An EL panel including: a light-transmissive substrate; an EL element including a light-emitting medium layer interposed between a cathode and an anode, the EL element being provided on one surface of the light-transmissive substrate; and a protection sheet on the other surface of the light-transmissive substrate of the EL element. The protection sheet has a surface opposite to the light-transmissive substrate, the shape of the surface includes rounded convex shapes and prism shapes. Each of the rounded shapes has an apex that is a center point of a cross-section farthest from a bottom surface where the cross-section is parallel to the bottom surface of the unit convex shape and the area becomes smaller in a direction from the bottom surface of the rounded convex shape to a top portion thereof.Type: ApplicationFiled: July 8, 2015Publication date: October 29, 2015Applicant: TOPPAN PRINTING CO., LTD.Inventors: Kohhei MORONAGA, Hideaki HOMMA, Akihito KAGOTANI
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Patent number: 9112185Abstract: The present invention provides an EL panel, an EL illumination device, and an EL display device in which irregularity of luminance does not easily occur in the in-plane of the EL element by a protection sheet for suppressing conduction of heat on the outermost surface of the EL element. There is an EL panel including: a light-transmissive substrate; an EL element including a light-emitting medium layer interposed between a cathode and an anode, the EL element being provided on one surface of the light-transmissive substrate; and a protection sheet on the other surface of the light-transmissive substrate of the EL element. The protection sheet has a surface opposite to the light-transmissive substrate, the shape of the surface includes rounded convex shapes and prism shapes.Type: GrantFiled: March 25, 2010Date of Patent: August 18, 2015Assignee: TOPPAN PRINTING CO., LTD.Inventors: Kohhei Moronaga, Hideaki Homma, Akihito Kagotani
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Patent number: 8836204Abstract: Disclosed is an organic EL illumination device—which is provided with: an organic EL element (13) on a glass substrate (10); and a plurality of anode terminal electrodes (11) and cathode terminal electrodes (12) for evenly supplying current to the aforementioned organic EL element (13) on the aforementioned glass substrate (10)—wherein the organic EL illumination device is provided with a wiring board (1) to which a circuit having anode wiring (1a) corresponding to the position of each of the aforementioned anode terminal electrodes (11), and a circuit having cathode wiring (1b) corresponding to the position of each of the aforementioned cathode terminal electrodes (12) are formed.Type: GrantFiled: April 27, 2011Date of Patent: September 16, 2014Assignee: Lumiotec Inc.Inventors: Akihito Kagotani, Makoto Arisawa, Hideki Kamada
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Publication number: 20130093308Abstract: Disclosed is an organic EL illumination device—which is provided with: an organic EL element (13) on a glass substrate (10); and a plurality of anode terminal electrodes (11) and cathode terminal electrodes (12) for evenly supplying current to the aforementioned organic EL element (13) on the aforementioned glass substrate (10)—wherein the organic EL illumination device is provided with a wiring board (1) to which a circuit having anode wiring (1a) corresponding to the position of each of the aforementioned anode terminal electrodes (11), and a circuit having cathode wiring (1b) corresponding to the position of each of the aforementioned cathode terminal electrodes (12) are formed.Type: ApplicationFiled: April 27, 2011Publication date: April 18, 2013Applicant: LUMIOTEC INC.Inventors: Akihito Kagotani, Makoto Arisawa, Hideki Kamada
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Publication number: 20120104946Abstract: The present invention provides an EL panel, an EL illumination device, and an EL display device in which irregularity of luminance does not easily occur in the in-plane of the EL element by a protection sheet for suppressing conduction of heat on the outermost surface of the EL element. There is an EL panel including: a light-transmissive substrate; an EL element including a light-emitting medium layer interposed between a cathode and an anode, the EL element being provided on one surface of the light-transmissive substrate; and a protection sheet on the other surface of the light-transmissive substrate of the EL element. The protection sheet has a surface opposite to the light-transmissive substrate, the shape of the surface includes rounded convex shapes and prism shapes.Type: ApplicationFiled: March 25, 2010Publication date: May 3, 2012Applicant: TOPPAN PRINTING CO., LTD.Inventors: Kohhei Moronaga, Hideaki Homma, Akihito Kagotani