公开(公告)号：US11247505B2

公开(公告)日：2022-02-15

申请号：US16752108

申请日：2020-01-24

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Akihito Kagotani ,  Kazuhiro Yashiki

IPC: B42D25/328 ,  G02B5/18 ,  B42D25/373 ,  B42D25/378 ,  G03H1/00 ,  G03H1/30 ,  G03H1/02 ,  G02B5/32

Abstract: 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.

公开(公告)号：US20200156399A1

公开(公告)日：2020-05-21

申请号：US16752108

申请日：2020-01-24

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Akihito Kagotani ,  Kazuhiro Yashiki

IPC: B42D25/328 ,  G02B5/18 ,  B42D25/378 ,  B42D25/373

Abstract: 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.

公开(公告)号：US11893432B2

公开(公告)日：2024-02-06

申请号：US17135563

申请日：2020-12-28

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Akihito Kagotani ,  Soko Koda

IPC: G06K19/06 ,  B42D25/328 ,  G06K19/02 ,  G03H1/26 ,  G03H1/00 ,  B42D25/485 ,  B42D25/23 ,  B42D25/24

CPC classification number: G06K19/06065 ,  B42D25/328 ,  B42D25/485 ,  G03H1/0011 ,  G03H1/265 ,  G06K19/02 ,  B42D25/23 ,  B42D25/24 ,  G03H2001/266 ,  G03H2210/20 ,  G03H2210/52

Abstract: An authentication medium includes a sheet-like laminate sheet; a first region that is formed on the laminate sheet and where personal identification information is recorded; and a second region that is formed on the laminate sheet and has a hologram structure where check data associated with first individual information is recorded.

公开(公告)号：US11662689B2

公开(公告)日：2023-05-30

申请号：US16938204

申请日：2020-07-24

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Soko Koda ,  Akihito Kagotani ,  Tomoyuki Shirasaki ,  Noriko Harashima

IPC: G03H1/00 ,  G02B5/32 ,  G03H1/02 ,  G03H1/08 ,  G03H1/22

CPC classification number: G03H1/0011 ,  G02B5/32 ,  G03H1/0252 ,  G03H1/08 ,  G03H1/2286 ,  G03H2001/2244 ,  G03H2225/32 ,  G03H2250/42

Abstract: 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.

公开(公告)号：US11573527B2

公开(公告)日：2023-02-07

申请号：US16442181

申请日：2019-06-14

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Akihito Kagotani

IPC: G03H1/08 ,  B42D25/328 ,  G01J9/02 ,  G03H1/00 ,  G03H1/02

Abstract: 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.

公开(公告)号：US09763288B2

公开(公告)日：2017-09-12

申请号：US14794196

申请日：2015-07-08

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Kohhei Moronaga ,  Hideaki Homma ,  Akihito Kagotani

IPC: G02B5/04 ,  H05B33/04 ,  G02B27/09 ,  H01L51/52 ,  H05B33/10 ,  H05B33/12 ,  H01L27/32

CPC classification number: H05B33/04 ,  G02B5/045 ,  G02B27/0961 ,  H01L27/3239 ,  H01L51/5262 ,  H01L51/5275 ,  H01L51/529 ,  H05B33/10 ,  H05B33/12

Abstract: 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.