# US 11,308,607 B2 · Tablet having uniquely identifiable shape, tablet verification device and program

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- Number: US 11,308,607 B2
- Document ID: US11308607B2
- Status: Granted
- Kind: B2
- Application number: 16/102,147
- Filed: 2018-08-13
- Published: 2018-12-06
- Granted: 2022-04-19
- Earliest claimed: 2012-03-19
- Assignees: FUJIFILM Business Innovation Corn.; Daiichi Sankyo Company, Limited
- Applicants: Kensuke Ito; Yasuhiro Suzuki
- Inventors: Kensuke Ito; Yasuhiro Suzuki
- Web page: https://patentgrep.com/patent/US11308607B2

## CPC

- G06T 7/001: {using an image reference approach}
- A61J 3/005: {Coating of tablets or the like (coating of sweetmeats or confectionery A23G3/20; coating of granules in general B01J2/006)}
- A61K 9/2072: {characterised by shape, structure or size; Tablets with holes, special break lines or identification marks; Partially coated tablets; Disintegrating flat shaped forms (A61K9/0004, A61K9/0056, A61K9/0065 take precedence)}
- A61K 9/2095: {Tabletting processes}
- G01N 21/9508: {Capsules; Tablets}
- G06F 18/2415: based on parametric or probabilistic models, e.g. based on likelihood ratio or false acceptance rate versus a false rejection rate
- G06V 10/764: using classification, e.g. of video objects
- G06V 20/66: Trinkets, e.g. shirt buttons or jewellery items (recognising microscopic objects G06V20/69)
- G06V 20/80: Recognising image objects characterised by unique random patterns
- G06V 20/95: {Pattern authentication; Markers therefor; Forgery detection}
- A61J 3/10: into the form of compressed tablets (tablet presses B30B11/00)
- A61J 2200/40: Heating or cooling means; Combinations thereof
- A61J 2200/72: for temperature
- A61J 2205/40: by shape or form, e.g. by using shape recognition
- A61K 9/2893: {Tablet coating processes (mechanical aspects A61J3/06)}
- G06T 2207/30121: CRT, LCD or plasma display
- G06T 2207/30204: Marker
- Y10T 428/2991: Coated
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- A61J: CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A method of producing a tablet in which an uncoated tablet is coated by a coating agent, the method including: a coating process of coating uncoated tablets with a coating agent by spray coating the coating agent onto tablets that are churned and tumbled inside a container, and drying the tablets inside the container by supplying drying air into the container and exhausting air from the container, wherein spray coating conditions, including air supply temperature, air supply rate, and spray speed, are controlled according to the weight of the coating agent with which the uncoated tablets are coated, such that the humidity of air exhausted during spray coating is within a range of from 14% RH to 30% RH.

## Claims

### Claim 1

A tablet comprising a uniquely identifiable random undulating shape on a tablet surface, the tablet produced by a method comprising:
a coating process of coating uncoated tablets with a coating agent by spray coating the coating agent onto tablets that are churned and tumbled inside a container, and drying the tablets inside the container by supplying drying air into the container and exhausting air from the container,
wherein the uniquely identifiable random undulating shape is generated on the tablet surface by controlling spray coating conditions, including air supply temperature, air supply rate, and spray speed according to a weight of the coating agent with which the uncoated tablets are coated, such that a humidity of air exhausted during spray coating is within a range of from 14% RH to 30% RH,
wherein a moisture content of the tablet is in a range of 1.3% to 2.3% by weight of the tablet,
wherein generating the uniquely identifiable random undulating shape on the tablet surface comprises controlling the moisture content of the tablet by controlling, among the spray coating conditions, the humidity of the air exhausted during spray coating to be within the range of from 14% RH to 30% RH and by controlling, among the spray coating conditions, the air supply temperature to be at 60° C. after supplying an input air at 60° C. until the exhausted air is at 45° C.,
wherein the tablet surface, having the uniquely identifiable random undulating shape thereon, is a surface of the coating agent as applied to the tablet, and
wherein the tablet surface further comprises a printed identifier printed thereon after generation of the uniquely identifiable random undulating shape and separate from the uniquely identifiable random undulating shape.