baber/WOPTO huggingface dataset:
Patent JP-2005529782-A (JP)
Title: コンバーチブル型自動車の自動車最上部荷室用カバー装置
IPC: B60J7/12
Filed: 2003-03-28
Abstract: 本発明は、コンバーチブル型の自動車（１）の自動車最上部荷室（２）のカバー装置に関する。カバー（６）は閉位置と開位置との間で旋回できる。２つの側部フラップ（１１）はカバー（６）の反対側の側部に配置され、自動車の長手方向軸（８）に対して一定の角度で向けられる。前記側部フラップは、これらが側部の通路開口部（１２）を開ける受動位置と、前記通路開口部（１２）を閉じる能動位置との間で旋回できる。特に安価な構成を達成するために、カバー（６）に対してそれぞれの側部フラップ（１１）を下降させ、蓋の下に旋回させることを可能にするそれぞれのベアリングシステム（１４）を介して、側部フラップ（１１）は、カバー（６）上に取り付けられる。側部フラップ（１１）を調節するための駆動装置（２４）は、スリーブ（１５）およびピン（１６）によって画定されるフラップ軸（１３）を中心に、フラップを旋回するためだけに構成される。カバーが開くときに上記側部フラップの下降が自動的に行われるように、該側部フラップは取り付けられ、配置される。
Patent JP-2005528981-A (JP)
Title: 担持型触媒の製造のための湿式製錬方法
IPC: B01J23/76
Filed: 2003-06-06
Abstract: 担持型触媒の製造方法に関する。その方法は触媒担体及び少なくとも１種の活性触媒成分前駆体を含むスラリーを加熱することを含む。該少なくとも１種の活性触媒成分前駆体を還元し、且つ該触媒担体の表面上に少なくとも１種の活性触媒成分を析出させるのに十分な圧力で、該スラリーにガスを導入して担持型触媒を形成する。その担持型触媒は大きな活性触媒表面積を有する。
Patent JP-2005529733-A (JP)
Title: ローラーケージアセンブリー
IPC: B05C17/02
Filed: 2002-11-15
Abstract: ポイントローラーを支持するローラーアセンブリー（１０）であって、ローラーシャフト（１５）の上にマウントされたケージ（１１）を有し、ケージは長さ方向において所々に設けられた２重のフランジ支持要素（３７ａ−１）により一体として支持される間隔を置いて配置されたバー（４０）を有し、端部（１９，３２）で終了し、内側末端キャップと外側末端キャップを係合する。内側末端キャップ（１９）は外側のテーパー状のフィンガー（２４ａ−ｆ）および隆起したタブ（４１）を有し、容易な挿入と取り外しのためにペイントローラーを係合し、保持する。
Patent JP-2005530839-A (JP)
Title: トリフルオロ酢酸を利用してアカルボース及び／又はアカルボース誘導体からバリエンアミンを製造する方法
IPC: A61K31/704
Filed: 2002-11-23
Abstract: 本発明は、有機酸であるトリフルオロ酢酸を利用して、アカルボース及び／又はアカルボース誘導体からバリエンアミンを製造する方法に関するものであって、本発明は強力なα−グルコシダーゼ抑制剤であり、２型糖尿病治療剤として使用される、ボグリボスを製造し得る、核心前駆体であるバリエンアミンを、アカルボース及び／又はその誘導体からＴＦＡを利用して選択的加水分解を通じて大量生産をすることができる。
Patent JP-2005538705-A (JP)
IPC: C12H1/044
Filed: 2003-06-13
Abstract: The invention relates to the use of colloidal, anionic silica sols of a pH of 1 to 5.5, a particle diameter of 4 to 150 nm and a surface area of 20 to 700 m<SUP>2</SUP>/g for clarifying and stabilizing liquid foods.
Patent JP-2005535490-A (JP)
IPC: B62H1/12
Filed: 2003-07-03
Abstract: The device for stabilizing a single-track vehicle comprises a supporting device ( 4 ) and an adjusting device ( 14 ) which is intended for selective lowering and raising of support elements and which can be actuated by way of a control device ( 10 ). The control device ( 10 ) can be influenced as a function of a combination of control signals from a speedometer which senses the speed of the vehicle and of a transverse acceleration meter. The adjusting device ( 14 ) comprises at least one supporting and actuating element ( 15 ) which can be influenced in combination by way of the control device ( 10 ) and/or by signals from the driver and is intended for extending and retracting the supporting device ( 4 ), as well as means for selective locking, unlocking, tensioning and extending of the supporting and actuating element ( 15 ). This device makes possible automatic lowering or raising of the supporting device ( 14 ) without additional operating requirements.
Patent JP-2005538513-A (JP)
Title: 内部空気送り器を有する金属空気電池および空気の流れを規制する圧力感知バルブ
IPC: H01M2/02
Filed: 2003-09-05
Abstract: 【課題】  使用していないときは正極を空気の流れから隔離し、使用中に空気の流れに触れさせることにより、電池の寿命を伸ばすこと。 【解決手段】  電気化学電池または電池システムは、ファン（３２）のような空気送り器と、スリットバルブのような１または複数の圧力感知機構とを備えており、これらのものにより空気が電池またはシステムに対して流入または流出することができるようになっている。前述の圧力感知機構は空気送り器に応答し、このことにより金属空気電池のような電気化学電池への空気の流れを規制している。
Patent JP-2006501435-A (JP)
Title: 後燃焼装置
IPC: F23C99/00
Filed: 2003-09-03
Abstract: 改質プロセス及び／又は燃料電池プロセスからの残留ガスを後燃焼させるための、特に水素を得るための化学的な改質器用の後燃焼装置（１）が、燃料と燃焼可能な残留ガスを燃焼室（８）に分配するための少なくとも１つのノズル（２）と、少なくとも１つの空気供給部（３）とを有している。燃焼室（８）には少なくとも部分的に、耐熱性の連続気泡型発泡セラミック（４）が充填されている。
Patent JP-2006503407-A (JP)
IPC: H01M10/16
Filed: 2003-10-01
Abstract: The use of polyfluoropolyethers and their mixtures as fire resistant solvents for conductive salt mixtures in reusable battery electrolytes is new  The use of polyfluoropolyethers (PFPE) and their mixtures as fire resistant solvents for conductive salt mixtures, especially mixtures containing lithium salts, in reusable, battery electrolytes, where the polyfluoropolyethers have the formula (I): X-CF2O(CF2O)m-(CF2CF2O)n-CF2X X  =  H, F, 1-5C alkyl, or COOR,  R  = 1-5C alkyl, partially or perfluorinated 1-5C alkyl or COOR,  R  =  1-5C alkyl, partially or perfluorinated 1-5C alkyl, or OR, R = partially or perfluorinated 1-5C alkyl,  m  =  0-5, n = 0-5, or their mixtures.
Patent JP-2006503991-A (JP)
IPC: D04B9/40
Filed: 2003-10-17
Abstract: The invention refers to a method and apparatus for joining the edges of a tubular knitted article, such as a stocking, upon the completion of the latter on a circular machine; the apparatus comprises a movable carrier able to be associated with a knitting head of a circular machine, and the said carrier supports means for the removal of stitches of the last knitted rank, in which the means operate the removal of one semi-rank, that is, of half the stitches of said last knitted rank, and the means operate the removal of the other semi-rank; the movable carrier being provided with driving means and transfer means able to move the stitches of one semi-rank onto the means which remove the other semi-rank.
Patent JP-2006505988-A (JP)
IPC: H04N5/445
Filed: 2003-10-15
Abstract: The invention relates to a recommender for recommending content to a user. The recommender comprises a recommender processor ( 111 ) which performs the steps of determining ( 201 ) a user preference profile and determining ( 205 ) if a content item interest does not correspond to the user preference profile. If the content item interest does not match the user preference profile, a temporary user preference profile is generated ( 207 ) in response to the content item. The recommender processor ( 111 ) then tests ( 209 ), through a user interface ( 107 ) the temporary user preference profile by recommending a plurality of other content items, and determining user preference values for them. If the preference value for the temporary user preference profile is high ( 211 ), the user preference profile is updated ( 213 ) accordingly. Otherwise, the temporary user preference profile is deleted ( 215 ). The update to the user preference profile may be temporary and have a higher update rate, thereby allowing the recommender to track temporary variations of user preferences. The recommender is particularly applicable to a Private Video Recorder ( 101 ).
Patent JP-2006506060-A (JP)
Title: 変化したカロテノイド組成及び比を有するアフリカンマリーゴールド
IPC: A23L5/40
Filed: 2003-05-30
Abstract: 花弁、葉又は花弁と葉が非突然変異体マリーゴールド中の比に対して高められたネオキサンチン＋ビオラキサンチン比、高められたβ-カロテン比、高められたリコペン比、高められたα-クリプトキサンチン比、高められたフィトエン比又は高められたフィトフルエン比の一つ以上を含むマリーゴールド植物、その再生可能な部分及び種子が開示される。花弁がゼアキサンチンエステルを含み、かつネオキサンチン及びビオラキサンチンの両方のエステルを実質的に含まず、キサントフィルがアルコールとして分析される場合に、ゼアキサンチンが抽出可能なカロテノイドの少なくとも約半分を構成する、マリーゴールド植物、その再生可能な部分及び種子がまた開示される。また、このような植物の調製方法、このようなカロテノイド比を有するオレオレジン及び食用物質が開示される。
Patent JP-2006506281-A (JP)
Title: シャーリングをつけた伸縮性を有するシート材料
IPC: B65D33/28
Filed: 2003-09-19
Abstract: 伸縮性シート材料と共に使用するための保持エレメントが開示される。一つの形態において、シート材料は、第一及び第二の側壁１０２、１０４を有するバッグ１００として与えられる。保持エレメントは、伸縮性ストリップの形態で、一方の側壁に取り付けられる。保持ストリップ１２０は、熱不安定な活性可能材料からなり、ストリップがセットされるところの無活性状態でバッグに適用され、その後、加熱されて、保持エレメントが伸縮自在化されるところの活性化状態に変化し、シャーリングがつけられた伸縮自在な物品が提供される。保持エレメントは、様々な形状を有し、様々な方法で活性化できるものである。
Patent JP-2006510196-A (JP)
Title: 高エネルギー・クラスタ照射による半導体表面皮膜の再結晶化及び半導体のドーピング方法
IPC: H01L21/20
Filed: 2003-12-12
Abstract: 損傷された半導体皮膜３０８を再結晶化させるための、及び／または低減されたドーパント拡散により半導体皮膜３０８内のドーパントを活性化させるためのガスクラスタ・イオンビーム１２８によるプロセス方法及び本方法によって形成される半導体デバイス。本方法は、例えば結晶性の復元及び／または浅接合を形成するための浅いドーパント・イオン・インプランテーション後のドーパント種の電気的活性化に有効である。本方法の一実施形態では、ガス・クラスタ内へ組み込まれるドーパント原子が半導体３０２の浅いドーピングを生成し、同時的なドーパント原子の電気的活性化及び半導体の再結晶化をもたらす。
Patent JP-2006513865-A (JP)
Title: 部材の硬蝋付用のフラックスを塗布するための装置および方法
IPC: B23K35/00
Filed: 2003-11-14
Abstract: 【課題】  本発明の課題は、改良されたフラックス塗布装置を提供することである。さらに、最適にフラックスを塗布するための方法を提供することが課題である。また、最適フラックス塗布を有する熱交換器を提供することが課題である。 【解決手段】  少なくとも１つの噴霧装置で材料表面にフラックスを自動的に塗布するための装置において、フラックスが表面に不規則にまたは不均一にまたは不均質に分配され、主にフラックスを多めに塗布された少なくとも１つのゾーンとフラックスを少なめに塗布された少なくとも１つのゾーンとが存在することを特徴とする装置。特に母材としてのアルミニウムをベースとする部材を硬蝋付するために少なくとも１つの噴霧装置を用いてフラックス（３）を塗布するための方法において、少なくとも１つの噴霧装置から射出される噴流が材料表面に関して約９０°の角度で傾けて射出され、場合によっては噴流の一部が材料表面に衝突しないことを特徴とする方法。
Patent JP-2006190741-A (JP)
Title: Depositing device and method and device for cleaning the same
Inventor: YAMADA TOMOYASU
IPC: H01L21/31
Filed: 2005-01-05
Abstract: <P>PROBLEM TO BE SOLVED: To provide a cleaning method, a cleaning device of a depositing device for efficiently cleaning the inner wall of a process chamber, and to provide the depositing device.  <P>SOLUTION: The cleaning device for a plasma CVD device 100 removes a reaction product (SiO<SB>2</SB>) stuck to the inner wall of the chamber 10 of the plasma CVD device 100 having the chamber 10 that can be sealed. The device is provided with a nozzle 60 with a heater 65 introducing high-temperature inert gas into the chamber 10 and raising a temperature of the inner wall, a remote plasma generation device 40 and a nozzle 50 which introduce cleaning gas comprising an F radical which can react to the reaction product into the chamber 10, where the temperature of the inner wall is raised by the introduction of high temperature inert gas and an exhaust pipe 75 and an exhaust pump 70 which discharge gas in the chamber 10 to which cleaning gas is introduced. The reaction of the reaction product stuck to the inner wall of the chamber 10 and the F radical can be promoted (activated).  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006197100-A (JP)
Title: Image processor and image processing method
Inventor: FUKUI TOSHIYUKI
IPC: H04N19/85
Filed: 2005-01-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide an image processor capable of improving beauty of a picture after image processing at the peripheral part of the image and performing the image processing by supplying more accurate complementary data.  <P>SOLUTION: The image processor has an image input means of inputting a moving picture and an image memory storing past images before an image to be processed at a certain point of time and includes an image processing execution means of processing end point data of the image to be processed by combining stored information and data of the image to be processed together when the information stored in the image memory can be used at the time of the image processing.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006197158-A (JP)
Title: Composite terminal equipment
Inventor: KAWASAKI MASASHI
IPC: B41J29/42
Filed: 2005-01-13
Abstract: <P>PROBLEM TO BE SOLVED: To provide composite terminal equipment for printing file data in a folder on a network displayed at a display part.  <P>SOLUTION: When a user selects network folder printing on the menu screen of a digital composite unit 1, a browser list on a network is displayed at the display part, and when any folder is selected by the user, files in the designated folder is displayed. Then, when the user selects any of the displayed files, and instructs printing, whether or not the file format of the file is a file format decodable by the digital composite unit 1 is decided, and when it is decided that the file format is not a decodable file, the file format is converted into a file format decodable by the digital composite unit 1 by a decoder which permanently resides in a personal computer X, and print processing is executed.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006195711-A (JP)
Title: Projector management system
Inventor: TANIZAWA KAZUAKI
IPC: G06Q10/00
Filed: 2005-01-13
Abstract: <P>PROBLEM TO BE SOLVED: To provide a projector management system that, upon a change in the position of a projector apparatus or upon a predetermined internal state change, can notify a change item and current position information about the projector apparatus to a projector administrator via a management server.  <P>SOLUTION: The projector apparatus 1 comprises a position detection means for detecting a current position, and means for, upon a change in the current position detected by the position detection means or upon a predetermined internal state change, sending email including unique information representing the projector apparatus, the current position information and the change item to the management server 3.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006194738-A (JP)
Title: Performance evaluation method for sulfonic acid type cation exchange resin of primary cooling water system desalination tower of pressurized water type nuclear power plant
Inventor: HASHIMOTO YASUAKI
IPC: C02F1/42
Filed: 2005-01-13
Abstract: <P>PROBLEM TO BE SOLVED: To provide an performance evaluation method for sulfonic acid type cation exchange resin of a primary cooling water system desalination tower of a pressurized water type nuclear power plant for evaluating the oxidation degradation degree of sulfonic acid type cation exchange resin, by measuring the quantity of polystyrene sulfonic acid contained in the primary cooling water at the outlet of the desalination tower.  <P>SOLUTION: In the performance evaluation method for sulfonic acid type cation exchange resin charged in the primary cooling water system desalination tower of a pressurized water type nuclear power plant, for evaluating the performance of sulfonic acid type cation exchange resin, charged in the desalination tower of a chemical volume control system, where primary cooling water of the pressurized water type nuclear power plant flows, boric acid recovery system and a spent fuel pit system, a part of primary cooling water of the desalination tower outlet is introduced, in a sample hood provided in a sampling room, and then the quantity of polystyrene sulfonic acid contained in the primary cooling water is measured.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2005122216-A (JP)
Title: Liquid crystal display and electronic appliance
Inventor: IIJIMA CHIYOAKI
IPC: G09F9/00
Filed: 2005-01-19
Abstract: <P>PROBLEM TO BE SOLVED: To reduce a cost and the number of manufacturing steps by decreasing a driving circuit in a liquid crystal display and to save a space of an electronic appliance which mounts the above liquid crystal apparatus.  <P>SOLUTION: In a liquid crystal display having layers of superimposing a first liquid crystal cell 1 and a second liquid crystal cell 2 and driving both cells, the first liquid crystal cell and the second liquid crystal cell are connected, and lines connecting a one-chip driving circuit 4 and the first liquid crystal cell are formed in the second liquid crystal cell. The first liquid crystal cell and the second liquid crystal cell are driven by the driving circuit. Connection of the driving circuit with lines which drive the first liquid crystal cell is disposed in either side of the connection of the one-chip driving circuit with electrodes which drive the second liquid crystal cell.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2006200082-A (JP)
Title: Functional fibrous structural material
Inventor: NAKAMURA TOMOKI
IPC: D06M101/32
Filed: 2005-01-21
Abstract: <P>PROBLEM TO BE SOLVED: To provide a functional fibrous structural material obtained by imparting functional fine particles to a fibrous structural material through a hydrophobic binder resin and having an especially excellent durability, without damaging its soft touch feeling.  <P>SOLUTION: This fibrous structural material obtained by attaching the functional fine particles through the hydrophobic binder resin attaching uniformly as a film state on single fibers constituting the fibrous structural material is characterized by laminating a water-repelling layer containing a water repellant on a filmy layer consisting of the hydrophobic binder resin.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006203057-A (JP)
Title: Mim capacitor and its manufacturing method
Inventor: SAWADA SHIGEKI
IPC: H01L21/822
Filed: 2005-01-21
Abstract: <P>PROBLEM TO BE SOLVED: To prevent a contact hole from thrusting through an upper electrode and a capacitance film by over-etching when the contact hole is formed, because a height is different between the upper electrode and a lower electrode by a portion of a MIM structure.  <P>SOLUTION: The MIM capacitor comprises an insulating film 10 of an underlayer formed on a substrate; an area which has a dented insulating film 10 formed in an area where the MIM structure having a lower electrode 11, a capacitance film 13, and an upper electrode 12 is formed; an interlayer insulating film 18 which is formed on the substrate formed with the MIM structure with a flattened surface; and contact holes 16, 17 which are formed in the interlayer insulating film 18, and are connected to the upper electrode 12 and a portion of the lower electrode 11 protruding from the upper electrode 12, respectively. The lower electrode 11 is formed on the insulating film 10 containing the area where the insulating film 10 is dented, and the capacitance film 13 and the upper electrode 12 are formed on the lower electrode 11 in the area where the insulating film 10 is dented.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006202171-A (JP)
Title: Maintenance cost distribution system and maintenance cost distribution method
Inventor: SONODA TOKUYUKI
IPC: G06Q50/00
Filed: 2005-01-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide a maintenance cost distribution system capable of properly finding maintenance cost to a plurality of plants and distributing it.  <P>SOLUTION: This maintenance cost distribution system has: a means obtaining relation between the maintenance cost and a maintenance ratio in each the plant; and a maintenance cost derivation means deriving the maintenance cost of a failure rate of a state that hindrance is not imparted as operation of the whole of the plurality of plants, to each the plant within a range of the maintenance cost of the whole. The maintenance ratio to a ratio of the maintenance cost, i.e., frequency of execution of maintenance is obtained in each the plant, the relation between the maintenance cost and the frequency of the execution of the maintenance is predicted, and the maintenance cost of each the plant of the state that the hindrance is not imparted as the operation of the whole of the plants is derived within the maintenance cost of the whole.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006198322-A (JP)
Title: Intravascular embolus
Inventor: SATAKE MITSUO
IPC: A61L31/00
Filed: 2005-01-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide an intravascular embolus capable of solving problems due to a metallic embolus.  <P>SOLUTION: Poly-L-lactic acid (weight average molecular weight is 200,000 and a melting point is 175°C) is melt-spun and drawn, so as to obtain single yarn with a diameter of 0.05mm. A thread-like object constituted of twisted yarn is obtained by two-ply single yarn, and cut by the length of 7cm. Consequently, the single-wire shape intravascular embolus (1) is manufactured.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2005177515-A (JP)
Title: Method to control growth of protozoa in eye care product using polyvalent cationic chelating agent
Inventor: RUPP DAVID C
IPC: A01N37/44
Filed: 2005-01-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method which controls the growth of protozoa such as an acanthamoeba in an eye care product such as a solution for contact lenses.  <P>SOLUTION: A method to control the growth of protozoa in an eye care product is disclosed. The method of this invention includes adding a polyvalent cationic chelating agent of the amount of working for controlling the growth of protozoa to the eye care product. Also, the method to control the growth of protozoa on the surface of the eye care product discloses a method to include contacting a solution to include the polyvalent cationic chelating agent of the amount of working for controlling the growth of protozoa on the surface of the eye care product. The eye care product to include a protozoa growth retarder is also disclosed.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2006207174-A (JP)
Title: Reinforced-concrete retaining wall
Inventor: KASHIMA YUTAKA
IPC: E02D29/02
Filed: 2005-01-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide a reinforced-concrete retaining wall which can make the amount of concrete smaller than a conventional reinforced-concrete retaining wall when the heights of back surfaces are equal to each other, which can also make the amount of reinforcing steel smaller than the conventional reinforced-concrete retaining wall, and which can resist great earth pressure against the back surface.  <P>SOLUTION: This reinforced-concrete retaining wall, which comprises a footing and a wall body constructed on the footing, is equipped with a reinforcement assembly which is arranged inside the wall body, a block aggregate which is formed of a plurality of foamed styrene blocks provided inside the reinforcement assembly, and the concrete which is placed on the block aggregate and the reinforcement assembly and which is integrated with them.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006211092-A (JP)
Title: Image forming apparatus
Inventor: TETSU TOSHIO
IPC: G06F21/60
Filed: 2005-01-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide an image forming apparatus for efficiently managing document data stored in itself by a simple configuration.  <P>SOLUTION: When the image forming apparatus receives an instruction of a user being a deletion object among users denoted by a user information stored in a storage section, the image forming apparatus revises an administrator of a folder to which the deletion instruction user is set as the administrator into a different user. Further, when the image forming apparatus receives a share instruction to allow a plurality of users to share document data stored in the storage section, the image forming apparatus stores the document data being a target of the share instruction to a share folder and stores only storage destination information denoting the storage destinations of the document data to each folder to which each of the users sharing the document data is set as the administrator. Thus, in the case of sharing the document data by a plurality of the users, an increase in the data amount of the composite machine (image forming apparatus) can be prevented. Consequently, the composite machine efficiently manages the document data stored in itself by a simple configuration.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006208604-A (JP)
Title: Birefringent film, layered retardation plate, polymer for film, optical film, and image display apparatus
Inventor: OMORI YUTAKA
IPC: G02F1/13363
Filed: 2005-01-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide a birefringent film showing optical characteristics with a negative intrinsic birefringent value and relatively large wavelength dispersion of in-plane retardation in a visible ray region.  <P>SOLUTION: The birefringent film is a stretched polymer film, wherein the polymer has a structure expressed by general formula (I) as a repeating unit (A) and includes the repeating unit (A) by ≥27 mol%. In general formula (I), R<SP>1</SP>represents a hydrogen atom or a 1-8C alkyl group; each of R<SP>2</SP>and R<SP>6</SP>independently represents a hydrogen atom, a 1-4C straight-chain or branched alkyl group, a 1-4C straight-chain or branched alkoxy group, or a 1-4C straight-chain or branched thioalkoxy group, a halogen atom, a nitro group, an amino group, a hydroxyl group or a thiol group, however, both of R<SP>2</SP>and R<SP>6</SP>are not hydrogen atoms at a time; and each of R<SP>3</SP>to R<SP>5</SP>independently represents a hydrogen atom or a substituent.  <P>COPYRIGHT: (C)2006,JPO&NCIPI