baber/WOPTO huggingface dataset:
Patent JP-2013501086-A (JP)
Title: 酸性イオン性液状媒体中でポリエステルを合成する方法
IPC: C08G63/87
Filed: 2010-07-28
Abstract: 本発明は、二酸、ジエステル、ヒドロキシ酸若しくはヒドロキシエステルとジオールとの間、又はヒドロキシ酸若しくはヒドロキシエステルの間の直接ポリエステル化反応によって１００００超の平均モル質量Ｍｗを有するポリエステル又はコポリエステルを合成する方法に関するものであり、この方法は、電荷が平衡にあるアニオン及びカチオンから成る少なくとも１種の酸性イオン性液体を含み且つ少なくとも前記カチオンがブレンステッドの定義に従う強酸であるか又はブレンステッドの定義に従う強酸である基を含むかのいずれかである反応媒体中で、大気圧で６０〜１５０℃の温度において前記ポリエステル化反応を実施することを特徴とする。
Patent JP-2013502713-A (JP)
Title: 円板ワーク、特に、成形ウエハの変形を測定するための方法および装置
IPC: H01L21/66
Filed: 2010-08-18
Abstract: 本発明は、円板ワーク、特に成形ウエハの変形を測定するための方法および装置に関する。この装置は、円板ワーク（３）の内側領域（ＩＢ）を取り付けるための回転可能ならびに高さおよび横方向に調整可能な取付ユニット（５、５ａ、１５ａ〜１５ｃ；５、５ａ、１５ｄ）と、取付ユニット（５、５ａ、１５ａ〜１５ｃ；５、５ａ、１５ｄ）の中心軸（Ｍ）からの円板ワーク（３）の中心軸（Ｍ’）の偏心（δ）を測定し、取付ユニット（５、５ａ、１５ａ〜１５ｃ；５、５ａ、１５ｄ）のために適切な調整信号を生成する測定ユニット（２５）と、取付ユニット（５、５ａ、１５ａ〜１５ｃ；５、５ａ、１５ｄ）の横方向の調整処理時に、円板ワーク（３）を付着するための付着ユニット（３ａ、３ｂ、３ｃ）と、取付ユニット（５、５ａ、１５ａ〜１５ｃ；５、５ａ、１５ｄ）または検出ユニット（５０）を回転させることによって、あらかじめ測定した取付ユニット（５、５ａ、１５ａ〜１５ｃ；５、５ａ、１５ｄ）の所定の高さ位置（Ｚ０）を使用して、変形に相当する所定の高さ位置（Ｚ０）からの円板ワーク（３）の非取付外側領域（ＡＢ）における複数の測定点（Ｐ１〜Ｐ８）の偏差（ＷＲ）を測定するための固定高さ検出器ユニット（５０）とを含む。
Patent JP-2013506930-A (JP)
Title: ホームネットワークベースの多重入力装置及び方法
IPC: G06F13/00
Filed: 2010-10-12
Abstract: 本発明は、ホームネットワークにおける複数のユーザーの多重入力を処理する方法及び装置を提供する。制御ポイントは、ホームネットワークの電子装置に入力能力情報を伝送するように要請し、要請に対応して電子装置から入力能力情報を受信し、入力能力情報を用いて入力信号を受信する受信器と入力信号を送信する少なくとも２個の送信器を決定してセッション設定を遂行する。この制御ポイントは、少なくとも２個の送信器により伝送される入力信号を受信器に伝送する。
Patent JP-2013508984-A (JP)
Title: 曲線状のゲート酸化物プロファイルを有するスプリットゲート半導体素子
IPC: H01L21/336
Filed: 2010-10-21
Abstract: スプリットゲート半導体素子は、第１の電極領域及び第２の電極領域を有するトレンチゲートを含む。前記第１の電極領域及び前記第２の電極領域は、ゲート酸化物層及び隣接誘電層によって相互に分離される。前記ゲート酸化物層と前記誘電層との間の境界は曲線状となっており、これにより、前記ゲート酸化物層が前記トレンチの側壁と出合う場所である鋭角部が回避される。 【選択図】図１Ａ
Patent JP-2013515124-A (JP)
Title: ベール糸を重ね合わせ織り交ぜることによって形成された新規な中間材料
IPC: B29C43/12
Filed: 2010-12-17
Abstract: 本発明は、織り交ぜによって絡み合わされた一組のバンドを含む中間材料に関係し、この材料は、いわゆるボイル・バンドである、バンドの少なくとも一部、好ましくはバンドの全部がバンドの長さ方向に平行な方向に延在する一連の強化糸又は長繊維からなり、バンドの各表面上で熱可塑性繊維不織布と組み合わされた一方向シートを形成し、２枚の不織布が熱可塑性があることによりボイル・バンドの凝集性を保証するようになっていることを特徴とする。本発明は、複合部品を形成するためにそのような材料を実現する製造方法にも関係し、さらに、その結果得られる複合部品にも関係する。
Patent JP-2013516820-A (JP)
Title: クロス・キャリア・スケジューリング・シナリオにおけるリソース割り当てのシグナリング
IPC: H04W72/04
Filed: 2010-12-22
Abstract: 本発明は、クロス・キャリア・スケジューリング・シナリオにおけるリソース割り当てのシグナリングに関する。ＨＡＲＱソフト・バッファ破壊／システム・スループットの劣化を生じさせる可能性のある割り当てられる物理リソースの誤検出を回避しつつ、キャリア・アグリゲーションを使用して通信システムにおけるクロス・キャリア・スケジューリングを可能にするために、下りリンク（または上りリンク）用のリソース割り当てを含む下りリンク制御情報（ＤＣＩ）内に、リソースがＤＣＩによって割り当てられるコンポーネント・キャリア上のサブフレーム内の制御シグナリングのために使用される１つまたは複数のＯＦＤＭシンボルの数を明示する方式を提案する。例示的な一実装例では、制御シグナリングに使用される１つまたは複数のＯＦＤＭシンボルの数は、３ＧＰＰ  ＬＴＥ−ＡネットワークにおいてシグナリングされるＰＣＦＩＣＨ値である。割り当てられるコンポーネント・キャリア上のサブフレーム内の１つまたは複数のＯＦＤＭシンボルの指示は、たとえば、他の制御シグナリング情報、たとえばキャリア・インジケータ・フィールドのキャリア指示と一緒に符号化される。
Patent JP-2013518406-A (JP)
Title: 光電池モジュール
IPC: H01L31/042
Filed: 2011-01-25
Abstract: 本発明は、光電池モジュールに関する。本発明の光電池モジュールは、支持基板；前面基板；前記支持基板と前面基板との間で光電変換素子をカプセル化しており、また珪素原子に結合されているアリール基を有するシリコーン樹脂を含み、前記シリコーン樹脂に含まれる全体珪素原子に対する前記アリール基のモル比が０.３を超過する封止材；を有し、前記シリコーン樹脂に含まれるアリール基は、好ましくはフェニル基である。本発明では、発電効率及び耐久性が優れた光電池モジュールが提供される。
Patent JP-2013518426-A (JP)
Title: 結晶酸化シリコンパッシベーション薄膜を含む太陽電池及びその製造方法
IPC: H01L31/04
Filed: 2011-01-26
Abstract: ヘテロジャンクション太陽電池は、結晶シリコン基板（１）の正面又は背面（１ａ）のいずれかに直接配置され、且つ、前記基板（１）とアモルファス又は微結晶のシリコンの層（３）との間に配置される結晶酸化シリコン薄膜（１１）を少なくとも１つ備える。前記薄膜（１１）は、前記基板（１）の前記面（１ａ）のパッシベーションとなることができる。特に、前記薄膜（１１）は、アモルファスシリコンの層（３）の堆積の前に、前記基板（１）の表面部分をラジカル酸化することにより得られる。さらに、真性アモルファスシリコン又は微量ドーピングされたアモルファスシリコンの薄層（２）は、前記薄膜（１１）と前記アモルファス又は微結晶シリコンの層との間に配置することができる。
Patent JP-2013527641-A (JP)
Title: 機器のバックグラウンドノイズ測定方法及びシステム
IPC: H04J99/00
Filed: 2010-06-09
Abstract: 本発明は機器のバックグラウンドノイズ測定方法及びシステムを開示し、前記方法は第一ノイズ干渉集合を取得し、その中から予め設定のノイズ干渉閾値より小さいノイズ干渉を検索し、第二ノイズ干渉集合を得て、次に第二ノイズ干渉集合の平均値を計算することと、第二ノイズ干渉集合の平均値が設定閾値以下であるかを判断し、YESであれば、現在の機器のバックグラウンドノイズが第二ノイズ干渉集合の平均値に等しいこととを含む。本発明を応用すると、より正確な機器のバックグラウンドノイズの測定値を得られ、従来技術において温度の変化による機器のバックグラウンドノイズの変化で引き起こした帯域幅が固定する測定方法の測定がが不正確になる問題を克服した。 【選択図】図１
Patent JP-2014133989-A (JP)
Title: Safety device in working table
Inventor: SAWACHIKA KUNIAKI
IPC: E04G1/34
Filed: 2013-01-08
Abstract: PROBLEM TO BE SOLVED: To provide a safety device which ensures safety of a worker in a working table where the worker works on a top board arranged with hand-held bars at four corners.SOLUTION: A safety device having a girder-side safety bar connecting a pair of hand-held bars adjacent to each other with respect to a girder side includes: a mounting part 21 which is mounted on a top part of the hand-held bar; and a fixed member 22 and an opening and closing member 23 which are located on both sides across a part to be attached 8 formed by an upper end of the hand-held bar. The opening and closing member 23 is formed in a shape having a groove-shaped cross section having a groove bottom wall 24 and a groove side wall holding the part to be attached 8, is pivotally supported at an upper end part 25a so as to be rotatable between an open position away from the part to be attached 8 and a closed position P2 close to the part to be attached 8, forms an insertion space S between the groove bottom wall 24 and the fixed member 22 when the opening and closing member 23 is rotated to the open position, and is provided with anti-loosening locking means 27 which locks the groove bottom wall 24 to the part to be attached 8 when the opening and closing member 23 is rotated to the closed position P2.
Patent JP-2014134241-A (JP)
Title: Supporting structure of pipe connecting device
Inventor: IMAI SATOSHI
IPC: G21D1/00
Filed: 2013-01-09
Abstract: PROBLEM TO BE SOLVED: To enable improving safety in a plant for a supporting structure of a pipe connecting device.SOLUTION: A pipe connecting device comprises: a base plate 101 on which a second auxiliary water supply pump 52 is supported; a supporting device that supports the base plate 101 independently from a branch water supply pipe 53 with respect to ground G so that the base plate 101 is freely movable; and a seismic isolation device 111 disposed between the ground G and the base plate 101. The base plate 101 is movable in a horizontal direction with respect to a support plate 106 on the ground G by an upper guide, a lower guide, and a guide member. A plurality of elastic members 114 are fixed on a lower frame 112 of the base plate 101 and are in contact with a friction plate 115 fixed on the support plate 106, so as to function as an attenuation member that absorbs vibration in the horizontal direction. A spring member 116 is interposed between the base plate 101 and the support plate 106, so that it is possible to return the base plate 101 to a reference position by the spring force of the spring member 116.
Patent JP-2014133506-A (JP)
Title: On-vehicle device, program, and display method
Inventor: NAKAZATO TOMOAKI
IPC: B60R16/02
Filed: 2013-01-11
Abstract: PROBLEM TO BE SOLVED: To provide "an on-vehicle device, a program, and a display method" which can provide users with optimal user interfaces when a plurality of users are authenticated.SOLUTION: An on-vehicle device equipped with a user authentication function includes: reception means for receiving user authentication information from a smart phone 20 possessed by a user; authentication means for authenticating the user on the basis of received user authentication information; determination means for determining a seat position of a user on board a vehicle; setting means for setting order of priority corresponding to the seat position; and selection means for selecting HMI screens 520, 530 of the authenticated user. The selection means changes the HMI screen 530 to the HMI screen 520 on the basis of order of priority of seat positions of users U1, U2 when the plurality of users U1, U2 are authenticated.
Patent JP-2014137384-A (JP)
Title: Optical module and optical transmission system
Inventor: TATEISHI HIROSHI
IPC: G02B6/32
Filed: 2013-01-15
Abstract: PROBLEM TO BE SOLVED: To provide an optical module and an optical transmission system capable of satisfying a requested eye-safety reference without reducing light power to be transmitted.SOLUTION: An optical module 10 includes: a light emission member 11 for emitting light; and an emission side light transmission member 12 which is a member composed of a material for transmitting emission light from the light emission member 11, includes an emission surface 122 from which passed light is emitted and is allowed to be connected to an incident side light transmission member 22 to which a light incidence member 21 on which light emitted from the emission surface 122 is made incident is attached, where the light emitted from the emission surface 122 of the emission side light transmission member 12 is diverging light.
Patent JP-2014137196-A (JP)
Title: Crushed raw material combustion system and method of controlling the same
Inventor: HINAUCHI TATSUYA
IPC: B02C15/04
Filed: 2013-01-17
Abstract: PROBLEM TO BE SOLVED: To provide a crushed raw material combustion system which can correspond to sudden load fluctuation over a long time in the crushed raw material combustion system and can suppress abnormal vibration of a vertical crusher.SOLUTION: A crushed raw material combustion system 1 includes: a vertical crusher 10 which is provided with a plurality of rotating crushing rollers 13, crushes raw material supplied onto a turntable 12 between the turntable 12 and the crushing rollers 13 and takes out the crushed raw material together with gas from an upper take-out port 26 disposed on the upper side of the turntable 12 by means of gas flow; a product hopper 20 which temporarily stores the raw material crushed by the vertical crusher 10; and a boiler 8 which burns the raw material volumetrically fed by a volumetrical feeder 9 from the product hopper 20. The crushed raw material combustion system 1 changes a feeding quantity of the raw material to the vertical crusher 10 according to a storage level of the raw material temporarily stored in the product hopper 20 and changes the number of rotation of the turntable 12 in accordance with the change of the feeding quantity.
Patent JP-2014141906-A (JP)
Title: Internal combustion engine control device
Inventor: OZAWA KENGO
IPC: F02D41/14
Filed: 2013-01-23
Abstract: PROBLEM TO BE SOLVED: To provide an internal combustion engine control device capable of executing an appropriate feedback control even for a vehicle including a fuel cut control device.SOLUTION: To this end, the internal combustion engine control device includes: an internal combustion engine applied to a vehicle; a catalyst provided in an exhauster connected to the internal combustion engine; an oxygen sensor included in the exhauster, and provided either upstream or downstream of the catalyst; and control means that includes a feedback control unit changing a correction constant in accordance with an output value from the oxygen sensor when the catalyst degrades. The control means includes: a fuel cut control unit for stopping supply of fuel to the internal combustion engine while the vehicle is decelerating; and a timer starting measuring time after the fuel cut control unit stops the fuel cut control. The feedback control unit stops the feedback control until a value of the timer exceeds set time.
Patent JP-2013177559-A (JP)
Title: Inkjet ink
Inventor: GOTO HIROSHI
IPC: B41M5/00
Filed: 2013-01-23
Abstract: PROBLEM TO BE SOLVED: To provide an inkjet ink capable of being excellent in gloss and suppressing cockling and beading even when an image with a large amount of deposit of the inkjet ink is formed on commercial printing paper.SOLUTION: An inkjet ink includes: a water-dispersible coloring agent; a surfactant; a penetrating agent; a water dispersing resin; a multihydric alcohol with an equilibrium water content at 23°C and 80% RH of ≥30 mass%; a compound of expressed by general formula (1); water; and at least one compound selected from the group consisting of compounds expressed by respective general formulas (2), (3) and (4). The water dispersing coloring agent is at least one selected from the group consisting of pigments with self-dispersibility, pigments dispersed with a pigment dispersing agent, and resin particles including a pigment; the total content of the pigment and the water dispersing resin is ≥8 mass% and ≤35 mass%; and the mass ratio of the water dispersing resin to the pigment is ≥2 and ≤8.
Patent JP-2014133542-A (JP)
Title: Information providing device for vehicle
Inventor: TAMURA SHIGEAKI
IPC: H04M1/00
Filed: 2013-02-04
Abstract: PROBLEM TO BE SOLVED: To provide an information providing device for a vehicle which can be adapted to a change of specifications of an interface part of external equipment while avoiding a cost increase when providing a user of a vehicle with external information that the external equipment has via a display part provided for vehicle mounted equipment.SOLUTION: An information providing device for a vehicle includes: an equipment unit 200 having a display part 204 for displaying various states of a vehicle to a user as vehicle state information and first control means 202 which operates the display part 204; and vehicle mounted equipment 102 having a communication part 220 which communicates between external equipment 103 for outputting external information about the vehicle to the equipment unit 200 and the equipment unit 200. The communication part 220 is connectable to the equipment unit 200 via detaching means 215 and, when the equipment unit 200 is connected to the communication part 220 via the detaching means 215, outputs to the equipment unit 200 a signal including at least either a video signal or a sound signal as external information about the vehicle.
Patent JP-2013079986-A (JP)
Title: Surface inspection device
Inventor: TAKAHASHI IPPEI
IPC: G01N21/892
Filed: 2013-02-05
Abstract: PROBLEM TO BE SOLVED: To provide a surface inspecting device, capable of using a line sensor and detecting surface defects of an analyte, with high accuracy.SOLUTION: A surface inspecting device comprises: a conveyer part 14 for conveying an analyte 12; an irradiating section 16 for irradiating a surface of the analyte 12 conveyed by the conveyer part 14 with a predetermined repeated light and darkness pattern; a power transmitting mechanism 18 for moving the light and darkness pattern irradiated to the analyte 12 in a width direction of the analyte 12; a line sensor 20 for imaging a section of the analyte 12 irradiated with the light and darkness pattern; and a defect determining section 50 for determining whether there are defects on the surface of the analyte 12, on the basis of a signal imaged by the line sensor 20.
Patent JP-2013127074-A (JP)
Title: Method for producing polytetrafluoroethylene aqueous dispersion
Inventor: TAIRA TAKAHIRO
IPC: C08F214/26
Filed: 2013-02-12
Abstract: PROBLEM TO BE SOLVED: To provide a new production method of an aqueous dispersion including polytetrafluoroethylene particles not melt-processable.SOLUTION: There is disclosed a production method for producing an aqueous dispersion including non melt-processable polytetrafluoroethylene particles, which includes a process of polymerizing tetrafluoroethylene in an aqueous medium in the presence of perfluorohexanoic acid or a salt thereof and a reactive emulsifier: CX=CFCF-O-(CF(CF)CFO)-CF(CF)-Y. In formula, Xs are each the same, representing F or H; n5 denotes 0 or an integer of 1-10; Yrepresents -SOM1 or -COOM1; M1 represents H, NHor an alkali metal.
Patent JP-2013209619-A (JP)
Title: Antistatic agent and antistatic resin composition
Inventor: HATTORI MASANORI
IPC: C08G81/00
Filed: 2013-02-12
Abstract: PROBLEM TO BE SOLVED: To provide an antistatic agent which imparts an excellent permanent antistatic property to a molded article without damaging a mechanical property of the molded article, and to provide an antistatic resin composition containing the antistatic agent.SOLUTION: An antistatic agent (Z) contains a block polymer (A) including: a block of a hydrophobic polymer (a); and a block of an oxyethylene group-containing polymer (b) with a crystallization temperature of 25°C or less, as structural units, wherein a proportion of the oxyethylene group based on the weight of (A) is 50 to 80 wt.%, and an antistatic resin composition includes a thermoplastic resin (C) containing the antistatic agent (Z).
Patent JP-2014151355-A (JP)
Title: Arc-welding apparatus
Inventor: OYAMA HIDETOSHI
IPC: B23K9/06
Filed: 2013-02-13
Abstract: PROBLEM TO BE SOLVED: To provide an arc-welding apparatus, in which abnormality in the cable of the apparatus and the connection part of the cable can be determined.SOLUTION: An arc-welding apparatus comprises: a main circuit for supplying an electric power between an electrode and a mother metal; a first cable connected with a first output terminal of the main circuit and the electrode; a second cable connected between a second output terminal of the main circuit and the mother metal; a first detection line for detecting an arc voltage; a second detection line for detecting the arc voltage; a first voltage detection part for detecting the output voltage of the main circuit; a second voltage detection part for detecting the arc voltage; and a comparison part for comparing the voltage detected in the first voltage detection part and the voltage detected in the second voltage detection part. In the case where the difference between the voltage detected in the first voltage detection part and the voltage detected in the second voltage detection part is a predetermined value or more, the comparison part determines that either the first cable or the second cable, or the first detection line or the second detection line is abnormal.
Patent JP-2014155396-A (JP)
Title: Wiring fixture
Inventor: HIRATA SATOSHI
IPC: H05K5/03
Filed: 2013-02-13
Abstract: PROBLEM TO BE SOLVED: To provide a wiring fixture for preventing erroneous assembly.SOLUTION: The wiring fixture includes: a first printed wiring board 2; and a housing 3 storing the first printed wiring board 2. The housing 3 has a body 5 and a cover 6 which are coupled with each other to hold the first printed wiring board 2 therebetween in a thickness direction thereof. The cover 6 has an engagement projection 62 which engages with an engagement concave 52 of the body 5. The engagement projection 62 cannot be engaged with the engagement concave 52 when the cover 6 is oriented in an incorrect direction turned by 180° with respect to an axis parallel to the thickness direction of the first printed wiring board 2, which is different from a correct assembling direction. With this arrangement, an incorrect assembly of the cover 6 with the body 5 is prevented.
Patent JP-2014157689-A (JP)
Title: Semiconductor light source unit, and vehicular lighting device
Inventor: IKEDA TAKAYUKI
IPC: F21S8/10
Filed: 2013-02-14
Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor light source unit which can be given an interchangeability with a wedge valve while having an electric wire connection structure, and a vehicular lighting device which can have a wedge valve or a semiconductor light source unit mounted on a light source installation part.SOLUTION: An LED unit 11 comprises: a housing 13; and a left bus bar 15 and a right bus bar 17 housed in the housing 13 for holding an inserted LED 19 and making the same electrically connectable. The left bus bar 15 and the right bus bar 17 include a first terminal part 53 for connecting the contact part of the LED 19, and a second terminal part 55 for connecting a coated electric wire 63, and the second terminal part 55 includes a spring terminal connection structure 89 so folded in a U-shape as to have a clamping thickness equivalent to that of the plate-shaped terminal part of a wedge valve.
Patent JP-2014155561-A (JP)
Title: Game machine
Inventor: SUGANO SATOSHI
IPC: A63F5/04
Filed: 2013-02-14
Abstract: PROBLEM TO BE SOLVED: To guarantee accuracy of an external signal.SOLUTION: When a winning combination in which a bonus replay combination is overlapped with another replay combination is won in a first step of output preparation, performance execution means 338 executes an auxiliary performance which notifies of a predetermined second operation mode other than a first operation mode by which the bonus replay combination can be won. When a stop switch is operated in accordance with the second operation mode, external output means performs transition to a second step of output preparation. When the winning combination in which the bonus replay combination is overlapped with the other replay combination is won in the second step of output preparation, performance execution means executes an auxiliary performance which notifies of the first operation mode by which the bonus replay combination can be won. When the stop switch is operated in accordance with the first operation mode, specific game determination means starts a specific game state. The external output means outputs an external signal by a predetermined trigger when the output preparation is in any step after the second step and a game is in the specific game state.
Patent JP-2014155981-A (JP)
Title: Polishing jig, and sample mounting jig for setting sample on polishing jig
Inventor: KURATO KENJI
IPC: B24B37/30
Filed: 2013-02-15
Abstract: PROBLEM TO BE SOLVED: To provide a polishing jig and a sample mounting jig that can perform control of a polishing amount and implement polishing work in a simple, efficient and economical manner.SOLUTION: A polishing jig 10 in which a sample 11 is held to be polished by abutting a sample lower end 12 against a grinder while maintaining the sample lower end 12 in parallel to the grinder, includes: a U-shaped jig body 17 having a pair of opposingly arranged arm members 14 and 15, and a coupling member 16 which connects a base side of each of the arm members 14 and 15; sample mounting means 19 which fixes the sample 11 on an aperture side of the coupling member 16 while the sample lower end 12 is projected downward; and level hold members 20 which penetrate a center part of the coupling member 16 and a tip side of the arm members 14 and 15 in a vertical direction respectively, and whose tip sides project from a lower face of the jig body 17 and are adjustable in projection length. The projection length of the level hold members 20 from the lower face of the jig body 17 is equal to a distance from the lower face of the jig body 17 to the sample lower end 12 or shorter by a preset distance.
Patent JP-2014157258-A (JP)
Title: Image display device
Inventor: SASAKI YASUSHI
IPC: G02F1/1333
Filed: 2013-02-15
Abstract: PROBLEM TO BE SOLVED: To provide an image display device with improved visibility.SOLUTION: An image display device includes: (1) a white light source having a continuous emission spectrum; (2) an image display cell; (3) a polarizer placed closer to a viewing side than the image display cell; and (4) two sheets of scattering preventing films placed closer to the viewing side than the polarizer. The two sheets of scattering preventing films are oriented films having 3000 to 150000 nm retardation. Orientation principal axes of the two sheets of scattering preventing films are approximately parallel to each other, or the two sheets of scattering preventing films have different retardations from each other, and the difference is 1800 nm or higher.