公开(公告)号：US11741327B2

公开(公告)日：2023-08-29

申请号：US17580182

申请日：2022-01-20

Applicant: TOPPAN INC.

Inventor： Akihito Kagotani ,  Satoshi Uchida ,  Soko Koda

IPC: G06K19/06 ,  G02B5/02 ,  G07D7/0043

CPC classification number: G06K19/06028 ,  G02B5/0284 ,  G07D7/0043

Abstract: An optical assembly includes a spacer layer which is translucent or transparent; an image forming reflector which has a reflective layer being formed at least in a first region of the spacer layer; and a protective layer which is laminated over the spacer layer and the image forming reflector and the protective layer being translucent or transparent. The spacer layer is made of a polyolefin or/and a polymer containing an aryl group. The image forming reflector includes a visible image which is authenticatable. The image forming reflector has an individual information record in which a code is stored in the form of a plurality of removed linear segments. The image forming reflector has white level regions and a black level region in planar view. Each of the white level regions has the removed linear segments formed therein. The black level region is interposed between the white level regions.

公开(公告)号：US12288120B2

公开(公告)日：2025-04-29

申请号：US17826541

申请日：2022-05-27

Applicant: TOPPAN INC.

Inventor： Soko Koda ,  Akihito Kagotani

IPC: G06K19/16 ,  B42D25/23 ,  B42D25/305 ,  B42D25/328 ,  B42D25/41 ,  B42D25/455 ,  G06K7/14

Abstract: A display body includes a base material having a first region, a second region, and a third region. In the display body, the first region is formed with a code or an image of identification information, and the second region is formed with a hidden code containing information obtained by encoding at least a part of the identification information. An encrypted ciphertext is recorded in the third region, and the ciphertext is generated from at least one of the code of the identification information and the hidden code.

公开(公告)号：US11977938B2

公开(公告)日：2024-05-07

申请号：US17699665

申请日：2022-03-21

Applicant: TOPPAN INC.

Inventor： Keitaro Sugihara ,  Akihito Kagotani

IPC: G06K19/06 ,  G02B5/20

CPC classification number: G06K19/0614 ,  G02B5/20

Abstract: A forming mold has a surface in contact with a deposited film, a part or an entire part being a first wavy surface. A wave period of the first wavy surface is in a range of 250 nm or more and 500 nm or less. The deposited film conforms to the surface of the forming mold. The first wavy surface includes a plurality of rib surfaces, a plurality of groove surfaces, and a plurality of taper surfaces connecting the rib surfaces to the respective groove surfaces. The deposited film has a peak zone, a valley zone, and a transition zone. One of the peak zone, the valley zone, and the transition zone and another one of the peak zone, the valley zone, and the transition zone are different or has portions different in thickness and/or volume density.