JP2003291568A - Card and method for judging whether card is authentic or not - Google Patents
Card and method for judging whether card is authentic or notInfo
- Publication number
- JP2003291568A JP2003291568A JP2002097034A JP2002097034A JP2003291568A JP 2003291568 A JP2003291568 A JP 2003291568A JP 2002097034 A JP2002097034 A JP 2002097034A JP 2002097034 A JP2002097034 A JP 2002097034A JP 2003291568 A JP2003291568 A JP 2003291568A
- Authority
- JP
- Japan
- Prior art keywords
- card
- authenticity
- resistance value
- electric resistance
- judgment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 19
- 239000000758 substrate Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 7
- 239000000976 ink Substances 0.000 description 28
- 238000005259 measurement Methods 0.000 description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000001023 inorganic pigment Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
Landscapes
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Credit Cards Or The Like (AREA)
- Printing Methods (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はプリペイドカード、
ＩＤカード、キャッシュカード、クレジットカードなど
の各種カードと、このカードが正本であるかどうかの真
贋判定方法に関するものである。TECHNICAL FIELD The present invention relates to a prepaid card,
The present invention relates to various cards such as an ID card, a cash card, and a credit card, and a method for determining the authenticity of this card.
【０００２】[0002]
【従来の技術】従来からプリペイドカード、ＩＤカー
ド、キャッシュカード、クレジットカードなどの各種の
カードが様々な分野に普及している。そして、これらの
カードは例えば商品を購入するときの決済で用いられた
りカード利用者の個人情報をやり取りする場合などに用
いられている。ところで、このように商品購入時の決済
や個人情報の授受にカードを用いることが多くなってく
るに伴って、不正にカードを複製して他人になりすまし
て偽造カードが使用される問題が発生するようになって
きた。このような偽造カードの作成を防止するために現
状においては、カード表面にホログラム画像を表示する
ホログラムシートを設けるようにすることが行われてる
が、カードの製造コストを引き上げるという問題があ
る。また、偽造カードの作成を防止するためにカード表
面に複製が困難な図柄などを設けることも試みられてい
るが、これらは印刷の図柄にグラデーションパターンや
モアレ効果を利用した地紋印刷や微細な図柄を盛り込む
などの方法であって、目視により印刷物の真贋を判定す
る方法あるため、印刷インキの選択、調整が難しかし
く、そして、文字・模様を印刷した後に複雑な濃色の地
紋、彩紋等の模様をカバー印刷する必要もあり、製版に
多大なコストと時間がかかり、類似的印刷が可能である
のが現状である。さらに、真贋の判定を行なう場合に
は、通常、ルーペ、顕微鏡などを用いて視認によって行
ない、判定には熟練度を要するものとなっている。そこ
で本発明は上記事情に鑑み、正本のカードの真贋判定部
を視認し難くしたり、さらには視認不可とするようにし
た状態で、その真贋判定部の有無を判定することで正本
のカードと不正に複製された偽造カードとの真贋判定を
簡易にすることを課題とし、偽造カードの発見が簡単に
行なえるようにすることを目的とするものである。2. Description of the Related Art Various cards such as prepaid cards, ID cards, cash cards, and credit cards have been widely used in various fields. These cards are used, for example, for payment when purchasing a product or for exchanging personal information of card users. By the way, with the increasing use of cards for payment at the time of purchase of products and exchange of personal information, there arises a problem that a counterfeit card is used by impersonating another person and impersonating another person. It's starting to happen. At present, in order to prevent the creation of such a counterfeit card, a hologram sheet for displaying a hologram image is provided on the surface of the card, but there is a problem of increasing the manufacturing cost of the card. In addition, in order to prevent the creation of counterfeit cards, it has also been attempted to provide patterns that are difficult to duplicate on the surface of the card, but these are patterns for printing, such as tint block printing and fine patterns using gradation patterns and moire effects. It is difficult to select and adjust the printing ink because it is a method of visually recognizing the authenticity of the printed matter, such as a method of incorporating, and after printing characters / patterns, a complicated dark tint pattern, color pattern etc. It is also necessary to cover-print the pattern of No. 3, which requires a great deal of cost and time for plate making, and it is the current situation that similar printing is possible. Further, when making a genuine / counterfeit judgment, it is usually performed visually by using a loupe, a microscope or the like, and a skill level is required for the judgment. Therefore, in view of the above circumstances, the present invention makes it difficult to visually check the authenticity determination section of the original card, and further, in a state in which the authenticity determination section is made invisible, by determining the presence or absence of the authenticity determination section, The object is to make it easy to verify the authenticity of a counterfeit card that has been illegally copied, and to make it easy to find a counterfeit card.
【０００３】[0003]
【課題を解決するための手段】本発明は上記課題を考慮
してなされたもので、所定のサイズと任意の厚さを有す
るカード基材の外周における少なくとも一辺の端面に、
導電性インキ好ましくは透明な導電性インキを所定長さ
に亘って塗布してなる真贋判定部が設けられていること
を特徴とするカードを提供して、上記課題を解消するも
のである。そして、別の発明は、電源と導通表示手段と
が接続された電気回路と、前記電気回路の両端部に接続
されて長くとも上記カードにおける真贋判定部の長さで
離れている電極とを有する判定器の前記電極を、被判定
物であるカードの真贋判定部設定位置に接触させ、前記
真贋判定部と前記電気回路との導通の有無により前記導
通表示手段での判定表示を行ない、被判定物の真贋を判
定することを特徴とするカードの真贋判定方法であり、
このカードの真贋判定方法を提供して、上記課題を解消
するものである。さらに、別の発明は、電源と判定対象
に対する重ね合わせ面の表面電気抵抗値を測定する測定
部と重ね合わせ面の設定表面電気抵抗値に対する測定表
面電気抵抗値の差異の有無を判定表示する判定部とを備
える判定器を、判定対象である請求項１のカードの周端
面に重ね合わせ、重ね合わせ面の設定表面電気抵抗値と
前記判定対象の端面に接触させて測定された測定表面電
気抵抗値との差異の有無により、判定対象のカードの真
贋を判定することを特徴とするカードの真贋判定方法で
あり、この真贋判定方法を提供して上記課題を解消する
ものである。The present invention has been made in consideration of the above-mentioned problems, and at least one end face of the outer periphery of a card base material having a predetermined size and an arbitrary thickness,
(EN) Provided is a card characterized by being provided with an authenticity judging section formed by applying a conductive ink, preferably a transparent conductive ink over a predetermined length, to solve the above problems. And another invention has an electric circuit in which a power source and a continuity display means are connected, and electrodes connected to both ends of the electric circuit and separated by at least the length of the authenticity determination section in the card. The electrode of the judging device is brought into contact with the authenticity judging portion setting position of the card to be judged, and the judgment display is conducted by the continuity display means depending on whether or not the authenticity judging portion and the electric circuit are electrically connected to each other. A method for determining the authenticity of a card, characterized by determining the authenticity of an object,
The object of the present invention is to solve the above problem by providing a method for determining the authenticity of this card. Furthermore, another invention is a determination unit for determining whether or not there is a difference between the measured surface electric resistance value with respect to the set surface electric resistance value of the measuring surface and the superposing surface with respect to the power supply and the judgment target. And a set surface electric resistance value of the superposed surface and a measured surface electric resistance measured by contacting with the end surface of the judgment target. A method for determining the authenticity of a card, wherein the authenticity of the card to be determined is determined based on the presence or absence of a difference from the value, and the above-mentioned problem is solved by providing this authenticity determination method.
【０００４】[0004]
【作用】本発明において、カードの外周の端面に導電性
インキを塗布してなる真贋判定部が設けられていること
から、この真贋判定部を目視にて確認することが困難で
あると共に、この導電性インキを透明とすれば目視にて
確認することが不可となり、真贋判定部の存在すら確認
できない。そこで、偽造するために正本のカードを真似
て偽造カードを作成しても、その偽造カードには導電性
インキを用いた真贋判定部を設けることができなくな
る。よって、カードが正本であるかどうかの判定は、導
電インキによる真贋判定部があるかどうかを確認すれば
よいことになる。In the present invention, since the authenticity determining portion formed by applying the conductive ink is provided on the outer peripheral end surface of the card, it is difficult to visually confirm the authenticity determining portion. If the conductive ink is transparent, it cannot be visually confirmed, and even the presence of the authenticity determination part cannot be confirmed. Therefore, even if a counterfeit card is created by imitating a genuine card for counterfeiting, the counterfeit card cannot be provided with an authenticity determination section using conductive ink. Therefore, it can be determined whether or not the card is the original by checking whether or not there is the authenticity determination section using the conductive ink.
【０００５】上記電源と導通表示手段とが接続された電
気回路と、前記電気回路の両端部に接続されて長くとも
上記カードにおける真贋判定部の長さで離れている電極
とを有する判定器を用いる真贋判定方法においては、上
記カードが正本であるか偽物であるかを判定するに際し
て、そのカードの外周の端面に上記判定器における対の
電極を接触させて移動させるようにすればよく、判定器
によって電気回路と真贋判定部とが導通するかどうかの
判定が行われるようにしている。このときのカードが正
本である場合、真贋判定部が存在していることから導通
して正本と判定され、導通しない場合にはそのカードが
偽物と判定されるようになり、正本であるかどうかが簡
単に判るようになる。また、電源と判定対象に対する重
ね合わせ面の表面電気抵抗値を測定する測定部と重ね合
わせ面の設定表面電気抵抗値に対する測定表面電気抵抗
値の差異の有無を判定表示する判定部とを備える判定器
を用いる真贋判定方法においては、上記カードが正本で
あるか偽物であるかを判定するに際して、前記判定器を
端面に重ね合わせて移動させるようにすればよく、カー
ド端面に重ね合わされた判定器で測定された重ね合わせ
面の測定表面電気抵抗値が設定表面電気抵抗値と比較さ
れるようにしている。このときのカードが正本である場
合、導電性インキからなる真贋判定部が存在しているこ
とから、測定表面電気抵抗値が設定表面電気抵抗値と異
なることになる。よって、測定表面電気抵抗値と設定表
面電気抵抗値とで差異がある場合には正本とされ、差異
がなかった場合にはそのカードが偽物と判定されるよう
になり、判定対象のカードが正本であるかどうかが簡単
に判るようになる。そして、何れの真贋判定方法におい
ても判定器の構成が非常に単純なため、安価で、かつサ
イズ、重量の面でハンドリング性に優れた判定器を作成
することができる。A discriminator having an electric circuit to which the power source and the continuity display means are connected, and an electrode connected to both ends of the electric circuit and separated from each other by at least the length of the authenticity judging portion of the card. In the authenticity determination method to be used, when determining whether the card is a genuine book or a fake one, the pair of electrodes in the determiner may be brought into contact with the end face of the outer periphery of the card and moved. The device determines whether or not the electrical circuit and the authenticity determination unit are in conduction. If the card at this time is genuine, it will be judged as genuine due to the presence of the authenticity determination section, and if it does not, it will be judged as a counterfeit and whether it is genuine or not. Can be easily understood. In addition, the determination that includes a power source and a measuring unit that measures the surface electrical resistance value of the overlapping surface with respect to the determination target, and a determination unit that determines and displays whether there is a difference in the measured surface electrical resistance value with respect to the set surface electrical resistance value of the overlapping surface In the authenticity determination method using a container, in determining whether the card is a genuine or a fake, it is sufficient to move the determiner by overlapping it on the end face, and the determiner superimposed on the end face of the card. The measured surface electric resistance value of the superposed surfaces measured in (1) is compared with the set surface electric resistance value. If the card at this time is a genuine card, the measured surface electric resistance value is different from the set surface electric resistance value because the authenticity determination portion made of the conductive ink is present. Therefore, if there is a difference between the measured surface electric resistance value and the set surface electric resistance value, it will be considered as an authentic copy, and if there is no difference, the card will be judged as a counterfeit, and the card to be judged is an authentic copy. You can easily tell whether or not Since the structure of the judging device is very simple in any of the authenticity judging methods, it is possible to manufacture a judging device which is inexpensive and has excellent handling property in terms of size and weight.
【０００６】[0006]
【発明の実施の形態】つぎに本発明を図１から図３に示
す実施の形態に基づいて詳細に説明する。図中１はカー
ドで、該カード１は「身分証明ＩＣカード」として構成
されており、幅５４ｍｍ、長さ８６ｍｍの規格サイズ
で、厚さ１ｍｍの白色のプラスチック板をカード基材２
としてなる。そして、カード基材２の表面には、タイト
ル、書誌的事項などの一般印刷３や氏名、年令などの可
変印刷４の他、カード所有者情報などを読取可能に記録
したＩＣチップ５、写真６などが施されている。なお、
そのカード基材２の裏面にも所定の印刷、印字が施され
ているが、ここでは図示しない。BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention will be described in detail based on the embodiment shown in FIGS. In the figure, reference numeral 1 denotes a card, which is configured as an "identification IC card", and has a standard size of 54 mm in width and 86 mm in length and a white plastic plate with a thickness of 1 mm as a card substrate 2
As Then, on the surface of the card base material 2, in addition to general printing 3 such as titles and bibliographic items, variable printing 4 such as name and age, IC chip 5 in which cardholder information and the like are readable recorded, photographs 6 etc. are given. In addition,
Predetermined printing and printing are also performed on the back surface of the card substrate 2, but it is not shown here.
【０００７】そして、上記カード１は、長辺側の一辺に
おける端面２ａに亘って所定の長さとした真贋判定部７
が設けられている。この真贋判定部７は透明な導電性イ
ンキを塗布してなるものであり、端面２ａから表出して
いるカード基材２の色彩を前記真贋判定部７を通して目
視できように設けられている。そのため、真贋判定部７
の存在を知らない人がこのカード１を見たときには真贋
判定部７を識別することができない。勿論、カード１の
周辺における端面に真贋判定部７が存在することを知っ
ていてもその位置や長さを知らない場合も真贋判定部７
を識別することはできないように設けられている。The card 1 has an authenticity judging section 7 having a predetermined length over the end face 2a on one side of the long side.
Is provided. The authenticity judging section 7 is formed by applying a transparent conductive ink, and is provided so that the color of the card base material 2 exposed from the end surface 2a can be visually observed through the authenticity judging section 7. Therefore, the authenticity determination unit 7
When a person who does not know the existence of the card 1 sees the card 1, the authenticity determination section 7 cannot be identified. Of course, even if the user knows that the authenticity determining unit 7 exists on the end face around the card 1, the authenticity determining unit 7 does not need to know its position or length.
It is provided so that it cannot be identified.
【０００８】このようにカード１にあっては、薄いカー
ド基材２の端面２ａに導電性インキからなる真贋判定部
７を識別することができない状態にして設けられている
ため、正本のカード１を真似て偽造カードを作成しても
真贋判定部７を有するカードを得ることができず、この
偽造カードに対して前記真贋判定部７が存在しないこと
を確認するだけで偽造物と判断できる。真贋判定部７の
有無を確認する手法は後述の通りであるが、カード１自
体の構成は極めて簡単であり、端面２ａに真贋判定部７
を設けるに際しても印刷手法などを利用して低コストに
て作成できる。As described above, in the card 1, since the authenticity determining portion 7 made of the conductive ink cannot be identified on the end surface 2a of the thin card base material 2, the original card 1 Even if a counterfeit card is created by imitating, the card having the authenticity determination unit 7 cannot be obtained, and it can be determined as a counterfeit by merely confirming that the authenticity determination unit 7 does not exist for this counterfeit card. The method for confirming the presence / absence of the authenticity determining unit 7 is described later, but the configuration of the card 1 itself is extremely simple, and the authenticity determining unit 7 is provided on the end face 2a.
When providing, it can be created at low cost by using a printing method or the like.
【０００９】上記真贋判定部７を得るための導電性イン
キは、酸化鉄のような磁性を有する無機顔料を使用した
低抵抗タイプの有色の導電性インキでも構わないが、さ
らに好ましくは、スズとインジウムの酸化物、すなわち
ＩＴＯ（Ｓｎ／Ｉｎ2Ｏ3）超微粉体をインキ用樹脂ビヒ
クルに分散させてインキ化したものを使用するのが良
い。これは、このＩＴＯ超微粉体の比抵抗値が１０−１
〜１０−４Ω・ｃｍ程度で、従来の酸化鉄等の磁性無機
顔料よりもはるかに抵抗値が低減されているため、この
ような低い抵抗値のＩＴＯ超微粒子をインキ化すること
で、通常の導電性インキに比べ格段に抵抗値が抑えられ
た導電性インキが得られるばかりか、さらに、このＩＴ
Ｏ超微粉体の粒子径を０．１μｍ以下にして、これを均
一に分散させたものは透明性を有するため、これを透明
な樹脂ビヒクルに含有させることで、導電性を有した透
明インキを調製することも可能であるからである。した
がって、上記真贋判定部７にＩＴＯ導電性インキを使用
した場合には、通常の導電性インキよりもその塗布量を
低減させても導電性に優れた真贋判定部が得られるもの
であり、あるいは、後述の判定器の電源の電圧・容量を
小さくできるといった効果を有するものである。The conductive ink for obtaining the authenticity determining portion 7 may be a low resistance type colored conductive ink using a magnetic inorganic pigment such as iron oxide, but more preferably tin. It is preferable to use an indium oxide, that is, ITO (Sn / In 2 O 3 ) ultrafine powder dispersed in an ink resin vehicle to form an ink. This is because the specific resistance value of this ITO ultrafine powder is 10-1.
Since the resistance value is much lower than that of a conventional magnetic inorganic pigment such as iron oxide at about 10-4 Ω · cm, by converting the ITO ultrafine particles having such a low resistance value into an ink, Not only can conductive inks with significantly reduced resistance be obtained compared to conductive inks, but this IT
O Ultrafine powder having a particle size of 0.1 μm or less and uniformly dispersed therein has transparency. Therefore, by incorporating this into a transparent resin vehicle, a transparent ink having conductivity. It is also possible to prepare Therefore, when the ITO conductive ink is used for the authenticity judging section 7, the authenticity judging section having excellent conductivity can be obtained even if the coating amount of the conductive ink is reduced as compared with the usual conductive ink, or The effect is that the voltage / capacity of the power supply of the determination device described later can be reduced.
【００１０】例えば、カード基材基体２の端面２ａに、
ＩＴＯ導電性インキを塗布厚１．０μｍで印刷した場合
には、表面抵抗値１．２×１０３Ω／□程度の真贋判定
部７が得られ、あるいは、塗布厚２．５μｍで印刷する
と、表面抵抗値５．５×１０２Ｑ／口程度の真贋判定部
７を得ることができる。あるいは、透明のＩＴＯ導電性
インキを、塗布厚１．０μｍで印刷すると、表面抵抗値
１．５×１０３Ω／口、ヘーズ値１．５％程度の導電性
の透明な真贋判定部を得ることができる。For example, on the end surface 2a of the card base substrate 2,
When the ITO conductive ink is printed with a coating thickness of 1.0 μm, the authenticity judgment part 7 having a surface resistance value of about 1.2 × 103 Ω / □ is obtained, or when printing with a coating thickness of 2.5 μm, the surface resistance is It is possible to obtain the authenticity determination unit 7 having a value of about 5.5 × 10 2 Q / mouth. Alternatively, when a transparent ITO conductive ink is printed with a coating thickness of 1.0 μm, a conductive transparent authenticity judging section having a surface resistance value of 1.5 × 103 Ω / mouth and a haze value of about 1.5% can be obtained. it can.
【００１１】つぎに上記構成とした正本のカード１であ
るか、或いは上記真贋判定部７を有することなく作成さ
れた偽造カードであるかを判定する方法について説明す
る。まず、この判定に際しては判定器８が用いられるも
のであって、図２に示すようにこの判定器８は、乾電池
などから構成された電源９とランプなどからなる導通表
示手段１０とが接続された電気回路１１と、この電気回
路１１の両端部に接続されて互いが長くとも上記真贋判
定部７の端部間距離の長さで離れている電極１２とを有
するものである。そして、判定者は判定対象（カード）
の四方の辺の端面に対して、判定器８の両電極１２を短
絡させることなく同時に接触させながら摺るように移動
させればよい。判定対象のカードが正本であれば、電極
１２がともに真贋判定部７に接触した時点で電気回路１
１が閉じて導通表示手段１０は点灯し、判定対象のカー
ドが正本であることが判定される。逆に判定対象が偽物
であれば、真贋判定部７が存在したいために電気回路１
１が開いたままで導通表示手段１０は点灯せず、判定対
象のカードが偽物であると判定できるようになる。この
ように判定者は、導通表示手段１０の点灯の有無を視認
することで判定対象の真贋を判定できる。Next, a method of determining whether it is the genuine card 1 having the above-mentioned configuration or a counterfeit card produced without the authenticity determining section 7 will be described. First, the judgment device 8 is used for this judgment. As shown in FIG. 2, the judgment device 8 is connected to a power source 9 composed of a dry battery or the like and a continuity display means 10 composed of a lamp or the like. The electric circuit 11 and the electrodes 12 connected to both ends of the electric circuit 11 and separated from each other by a length equal to the distance between the end portions of the authenticity determining portion 7 even if they are long. And the judge is the judgment target (card)
It suffices to move both electrodes 12 of the determination device 8 so as to slide while simultaneously contacting the end faces of the four sides of the same without short-circuiting. If the card to be judged is a genuine card, the electric circuit 1 is generated when both the electrodes 12 come into contact with the authenticity judgment section 7.
1 is closed and the continuity display means 10 is turned on, and it is determined that the card to be determined is a genuine card. On the contrary, if the object to be judged is a counterfeit, it is necessary to have the authenticity judgment unit 7 and therefore the electric circuit 1
With 1 open, the continuity display means 10 does not light up, and it becomes possible to determine that the card to be determined is a counterfeit. In this way, the determiner can determine the authenticity of the determination target by visually checking whether the continuity display means 10 is lit.
【００１２】また、他の構成の判定器８を用いても判定
対象のカードが正本であるか偽物であるかの判定が行な
える。この判定に用いる判定器８の構成が図３に示され
ていて、判定器８は乾電池などから構成された電源９と
判定対象に対する重ね合わせ面１３の表面電気抵抗値を
測定するようにした測定部１４と設定表面電気抵抗値に
対する測定表面電気抵抗値の差異の有無を判定表示する
判定部１５とを備えている。そして、判定対象（カード
１あるいは偽造カード）の端面にこの判定器８の測定部
１４を重ね合わせながら摺るように移動させる。測定部
１４の重ね合わせ面１３の長さはカード１の長辺側寸法
に対応していることが良好であるが、必ずしもカード１
の長辺側寸法に対応している必要はない。勿論、カード
１の連続する二辺の形状に対応して、重ね合わせ面が屈
曲していてもよい。Further, it is possible to judge whether the card to be judged is a genuine card or a counterfeit by using a judging device 8 having another structure. The configuration of the determining device 8 used for this determination is shown in FIG. 3, and the determining device 8 measures the surface electric resistance value of the power source 9 composed of a dry battery or the like and the overlapping surface 13 with respect to the determination target. And a determination unit 15 for determining and displaying whether or not there is a difference in the measured surface electric resistance value with respect to the set surface electric resistance value. Then, the measuring unit 14 of the determining device 8 is slidably moved while overlapping the end face of the determination target (card 1 or counterfeit card). It is preferable that the length of the overlapping surface 13 of the measuring unit 14 corresponds to the dimension of the long side of the card 1, but the card 1 is not always required.
It is not necessary to correspond to the long side dimension of. Of course, the overlapping surface may be bent corresponding to the shape of two continuous sides of the card 1.
【００１３】測定対象の端縁に背職させる上記測定部１
４は重ね合わせ面１３に導電性物質を塗布するなどして
予め設定表面電気抵抗値が定められていて、この設定表
面電気抵抗値が前記判定部１５に記録されている。上述
したように測定対象の端面に測定部１４を接触させて測
定部１４の重ね合わせ面１３に対して通電を行ない、移
動させながら表面電気抵抗値の測定が行われる。判定部
１５にあっては、重ね合わせ面１３の設定表面電気抵抗
値と測定した測定表面電気抵抗値との比較を行ない、設
定表面電気抵抗値と測定表面電気抵抗値とに差異がある
場合には、判定対象を正本のカード１として判定表示
し、差異がない場合には偽物として判定表示するもので
ある。即ち、正本のカード１が判定対象であった場合に
は真贋判定部４を構成している導電性インキの部分が前
記重ね合わせ面１３に接触した状態となっているため、
測定表面電気抵抗値は設定表面電気抵抗値と相違するこ
とになる。そのため両者に差異が生じ、これによって被
測定物が正本のカード１であるとして判断できる。逆に
上記真贋判定部４が存在しない偽物であった場合には、
測定部１４をその判定対象に重ね合わせて通電して測定
しても、重ね合わせ面１３の表面電気抵抗値は変化しな
いため、測定表面電気抵抗値と設定表面電気抵抗値とに
差異がなく、その結果、判定部１５は被測定物を偽物と
して判定表示するようになる。このように判定器８を接
触させて測定表面電気抵抗値と設定表面電気抵抗値との
差異の有無により、カードの真贋を判定するものである
ため、判定作業が極めて簡単なものとなる。また、判定
器８自体の構成も簡単でその取り扱いが簡単なものとな
っている。The above-mentioned measuring unit 1 in which the edge of the object to be measured is backworked
In reference numeral 4, a set surface electric resistance value is set in advance by applying a conductive substance to the superposed surface 13, and the set surface electric resistance value is recorded in the judgment unit 15. As described above, the measurement portion 14 is brought into contact with the end face of the measurement target, the superposition surface 13 of the measurement portion 14 is energized, and the surface electric resistance value is measured while moving. The determination unit 15 compares the set surface electric resistance value of the superposed surface 13 with the measured measured surface electric resistance value, and when there is a difference between the set surface electric resistance value and the measured surface electric resistance value. Indicates that the determination target is a genuine card 1 and is displayed, and if there is no difference, it is determined and displayed as a fake. That is, when the original card 1 is the determination target, the conductive ink portion forming the authenticity determination unit 4 is in contact with the overlapping surface 13,
The measured surface electric resistance value will be different from the set surface electric resistance value. Therefore, there is a difference between the two, and it can be determined that the DUT is the original card 1. On the contrary, when the authenticity judging section 4 is a non-existent counterfeit article,
Even if the measurement unit 14 is superposed on the determination target and energized for measurement, the surface electric resistance value of the superposition surface 13 does not change, so that there is no difference between the measured surface electric resistance value and the set surface electric resistance value. As a result, the determination unit 15 determines and displays the measured object as a counterfeit. Since the authenticity of the card is determined based on the presence or absence of the difference between the measured surface electrical resistance value and the set surface electrical resistance value by contacting the determination device 8 in this manner, the determination work becomes extremely simple. Further, the judgment device 8 itself has a simple structure and is easy to handle.
【００１４】[0014]
【発明の効果】以上説明した本発明のカードによれば、
所定のサイズと任意の厚さを有するカード基材の外周に
おける少なくとも一辺の端面に、導電性インキ好ましく
は透明な導電性インキを所定長さに亘って塗布してなる
真贋判定部が設けられていることを特徴とするものであ
り、正本のカードの端面を目視してもその真贋判定の手
掛かりである導電性インキによる真贋判定部を識別し難
く、あるいは識別することができず、不正に正本のカー
ドと同一構成の偽物を作成するのを確実に防止できるよ
うになる。そして、構成が簡単であるとともに通常の印
刷手法などを用いて低コストにて作成できるようにな
る。また、別の発明の真贋判定方法は、電源と導通表示
手段とが接続された電気回路と、前記電気回路の両端部
に接続されて長くとも請求項１ないし請求項２に記載の
カードにおける真贋判定部の長さで離れている電極とを
有する判定器の前記電極を、被判定物であるカードの真
贋判定部設定位置に接触させ、前記真贋判定部と前記電
気回路との導通の有無により前記導通表示手段での判定
表示を行ない、被判定物の真贋を判定することを特徴と
するものであり、また、電源と判定対象に対する重ね合
わせ面の表面電気抵抗値を測定する測定部と重ね合わせ
面の設定表面電気抵抗値に対する測定表面電気抵抗値の
差異の有無を判定表示する判定部とを備える判定器を、
判定対象である請求項１ないし請求項２のカードの周端
面に重ね合わせ、重ね合わせ面の設定表面電気抵抗値と
前記判定対象の端面に接触させて測定された測定表面電
気抵抗値との差異の有無により、判定対象のカードの真
贋を判定することを特徴とするものである。このように
判定方法の構成が簡単であり、用いる判定器の構造も正
本のカードにおける導電性インキをからなる真贋判定部
に測定部を重ね合わせて表面電気抵抗値が設定表面電気
抵抗値と異なれば正本と判定するという簡易なものとす
ることができ、判定する差異の取り扱いに手数を要する
ものとならないなど、実用性に優れた効果を奏するもの
である。According to the card of the present invention described above,
At least one side end face in the outer periphery of the card base material having a predetermined size and an arbitrary thickness is provided with an authenticity determination section formed by applying a conductive ink, preferably a transparent conductive ink, for a predetermined length. It is difficult to identify the authenticity judgment part by conductive ink, which is a clue for authenticity judgment even if you visually check the end face of the original card, or it is not possible to identify it, so it is illegal It is possible to reliably prevent the creation of a fake with the same structure as the card. Further, the structure is simple and it can be produced at a low cost by using an ordinary printing method or the like. According to another aspect of the present invention, there is provided an authenticity judging method, wherein an electric circuit in which a power supply and a continuity display means are connected to each other and both ends of the electric circuit are connected and the authenticity of the card according to claim 1 or 2 is long. The electrode of the judgment device having an electrode separated by the length of the judgment unit is brought into contact with the authenticity judgment unit setting position of the card which is the object to be judged, and whether the authenticity judgment unit and the electric circuit are electrically connected or not. It is characterized by performing a determination display in the continuity display means, to determine the authenticity of the object to be determined, and a measurement unit for measuring the surface electric resistance value of the power supply and the overlapping surface with respect to the determination target. A judging device comprising a judging unit for judging and displaying whether or not there is a difference in the measured surface electric resistance value with respect to the set surface electric resistance value of the mating surface,
The difference between the set surface electric resistance value of the overlapping surface and the measured surface electric resistance value measured by contacting with the end surface of the judgment object, which is superposed on the peripheral end surface of the card as the judgment object. It is characterized in that the authenticity of the card to be judged is judged by the presence or absence of. In this way, the structure of the judgment method is simple and the structure of the judgment device used is such that the surface electric resistance value does not differ from the set surface electric resistance value by superimposing the measurement part on the authenticity judgment part made of conductive ink in the original card. For example, it is possible to make a simple determination that it is a genuine copy, and it is possible to achieve an effect of excellent practicality such that it takes no trouble to handle the difference to be determined.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明に係るカードの一実施の形態を示す説明
図である。FIG. 1 is an explanatory diagram showing an embodiment of a card according to the present invention.
【図２】判定器の一例を示す説明図である。FIG. 2 is an explanatory diagram showing an example of a determiner.
【図３】他の判定器の一例を示す説明図である。FIG. 3 is an explanatory diagram showing an example of another determiner.
１…カード ２…カード基材 ２ａ…端面 ７…真贋判定部 ８…判定器 ９…電源 １０…導通表示手段 １１…電気回路 １２…電極 １３…重ね合わせ面 １４…測定部 １５…判定部 1 ... Card 2 ... Card base material 2a ... end face 7 ... Authenticity judgment section 8 ... Judgment device 9 ... Power 10 ... Continuity display means 11 ... Electric circuit 12 ... Electrode 13 ... Overlapping surface 14 ... Measuring unit 15 ... Judgment unit
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 2C005 HA02 HB01 HB04 HB09 HB20 JA26 JB02 JB15 JB22 KA40 LA22 2H113 AA03 AA04 AA06 BB22 BC12 CA17 CA39 CA47 FA10 3E041 AA01 AA10 BA09 BB07 BB10 BC04 DB01 5B035 AA15 BA03 BB09 BC01 CA01 CA06 ─────────────────────────────────────────────────── ─── Continued front page F-term (reference) 2C005 HA02 HB01 HB04 HB09 HB20 JA26 JB02 JB15 JB22 KA40 LA22 2H113 AA03 AA04 AA06 BB22 BC12 CA17 CA39 CA47 FA10 3E041 AA01 AA10 BA09 BB07 BB10 BC04 DB01 5B035 AA15 BA03 BB09 BC01 CA01 CA06
Claims (4)
基材の外周における少なくとも一辺の端面に、導電性イ
ンキを所定長さに亘って塗布してなる真贋判定部が設け
られていることを特徴とするカード。1. An authenticity determination section formed by applying a conductive ink over a predetermined length on at least one end face of the outer periphery of a card substrate having a predetermined size and an arbitrary thickness. Card characterized by.
記載のカード。2. The conductive ink is a transparent ink.
The listed card.
路と、前記電気回路の両端部に接続されて長くとも請求
項１ないし請求項２に記載のカードにおける真贋判定部
の長さで離れている電極とを有する判定器の前記電極
を、被判定物であるカードの真贋判定部設定位置に接触
させ、前記真贋判定部と前記電気回路との導通の有無に
より前記導通表示手段での判定表示を行ない、被判定物
の真贋を判定することを特徴とするカードの真贋判定方
法。3. An electric circuit in which a power source and a continuity display means are connected, and at least the length of the authenticity determining section in the card according to claim 1 or 2 which is connected to both ends of the electric circuit. The electrode of the discriminator having a separated electrode is brought into contact with the authenticity determination section setting position of the card as the object to be determined, and the continuity display means determines whether the authenticity determination section and the electric circuit are electrically connected or not. A method for judging authenticity of a card, which comprises displaying a judgment display to judge the authenticity of a judgment object.
面電気抵抗値を測定する測定部と重ね合わせ面の設定表
面電気抵抗値に対する測定表面電気抵抗値の差異の有無
を判定表示する判定部とを備える判定器を、判定対象で
ある請求項１ないし請求項２のカードの周端面に重ね合
わせ、重ね合わせ面の設定表面電気抵抗値と前記判定対
象の端面に接触させて測定された測定表面電気抵抗値と
の差異の有無により、判定対象のカードの真贋を判定す
ることを特徴とするカードの真贋判定方法。4. A power source and a measuring unit for measuring a surface electric resistance value of a superposed surface with respect to an object to be judged, and a judging unit for judging and displaying whether or not there is a difference between the set surface electric resistance value of the superposed surface and the measured surface electric resistance value. 3. A measuring surface measured by contacting the set surface electric resistance value of the overlapping surface and the end surface of the judgment object, by superposing the judgment device including the judgment object on the peripheral end surface of the card as the judgment object. A method for determining the authenticity of a card, characterized by determining the authenticity of the card to be determined by the presence or absence of a difference from the electric resistance value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002097034A JP3916140B2 (en) | 2002-03-29 | 2002-03-29 | Card and card authentication method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002097034A JP3916140B2 (en) | 2002-03-29 | 2002-03-29 | Card and card authentication method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003291568A true JP2003291568A (en) | 2003-10-15 |
| JP3916140B2 JP3916140B2 (en) | 2007-05-16 |
Family
ID=29239793
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002097034A Expired - Fee Related JP3916140B2 (en) | 2002-03-29 | 2002-03-29 | Card and card authentication method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3916140B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008527578A (en) * | 2005-01-19 | 2008-07-24 | エージェンシー フォー サイエンス，テクノロジー アンド リサーチ | Identification tag, object adapted to be identified, and related methods, apparatus and systems |
| JP2011189508A (en) * | 2010-03-11 | 2011-09-29 | Hitachi Maxell Ltd | Authenticity determining medium and method for manufacturing the same |
-
2002
- 2002-03-29 JP JP2002097034A patent/JP3916140B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008527578A (en) * | 2005-01-19 | 2008-07-24 | エージェンシー フォー サイエンス，テクノロジー アンド リサーチ | Identification tag, object adapted to be identified, and related methods, apparatus and systems |
| JP4685112B2 (en) * | 2005-01-19 | 2011-05-18 | エージェンシー フォー サイエンス，テクノロジー アンド リサーチ | Identification tag, object adapted to be identified, and related methods, apparatus and systems |
| JP2011189508A (en) * | 2010-03-11 | 2011-09-29 | Hitachi Maxell Ltd | Authenticity determining medium and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3916140B2 (en) | 2007-05-16 |
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