baber/WOPTO huggingface dataset:
Patent JP-2008524508-A (JP)
Title: 駆動装置
IPC: F04B9/04
Filed: 2005-11-02
Abstract: 本発明は駆動装置（１）、特に自動車のブレーキシステムのための、少なくとも１つのピストンエレメントをもって構成されたピストンポンプのための駆動装置であって、該駆動装置によってピストンエレメントが偏心体装置を介して上死点と下死点との間で長手方向にケーシング内で運動可能である駆動装置に関する。偏心体装置（２）は少なくとも１つのカム形状の偏心体エレメント（４）を有している。この偏心体エレメント（４）の外側の套面はピストンエレメント（３Ａから３Ｄ）の運動を制御するための制御カムを成している。偏心体エレメント（４）の制御カムとピストンエレメント（３Ａから３Ｄ）との間には転がり軸受装置（６）が設けられている。該転がり軸受装置（６）はピストンエレメント（３Ａから３Ｄ）が偏心エレメント（４）の制御カムにあらかじめ規定された輪郭にしたがって制御可能であるような弾性をもって構成されている。
Patent JP-2008526532-A (JP)
Title: 配置手段
IPC: B23B31/107
Filed: 2006-01-09
Abstract: 【課題】  一つのエレメントから支持されるようになった、二つのエレメントを互いに係合状態に保持するため、別のエレメントと係合するための配置手段を提供する。 【解決手段】  配置手段から延びる延長位置と延長位置の内方に配置された引っ込め位置との間で変位自在のラグと、一つのエレメントから摺動自在に支持された駆動部材とを含み、ラグ及びドライバーは、少なくとも二つの向き合った面を持ち、別のエレメントは、使用時に、ラグが延長位置にあり、二つのエレメントが互いに係合しているとき、エレメントを互いに係合した状態に保持するため、ラグと係合するようになった衝合部を有し、向き合った面は、駆動部材がラグに対して移動することにより、ラグを変位させるように形成されている。加工物の機械加工を行うことができるように、少なくとも一つの加工物を支持するようになった回転ジグを駆動へッド（１１）で支持するための支持装置において、配置手段を使用する支持装置。 【選択図】  図１
Patent JP-2008527580-A (JP)
Title: デジタル作品の注釈を提供する方法およびシステム
IPC: G06Q30/00
Filed: 2006-01-18
Abstract: デジタル作品８４の注釈を受信および配信する方法およびシステムは、デジタル作品８４の注釈を受信することと、該注釈を記憶することと、ユーザに注釈を提供することとを含む。ユーザは注釈に関して有効な許可証明書９０を提出することが求められてよい。注釈はテキストまたはグラフィック形式であってよく、デジタル作品内の特定のコンテンツに関連付けられてもよい。注釈が利用可能なデジタル作品内のコンテンツを識別するためにインジケータが表示されてもよい。ユーザは注釈にアクセスするために対価を交換してもよく、または指定された処置を実行してもよい。注釈に対して受け取られた対価の一部またはすべては、注釈の作者に分配されてもよい。複数の注釈が、順位、価格、または受信日などの基準に基づく順序で一覧に記載されてもよい。デジタル作品を購入するユーザは、デジタル作品の注釈を受信するための許可証明書９０を自動的に受信してもよい。
Patent JP-2008529774-A (JP)
Title: 工業的な過程においてアルミノ珪酸塩のスケールを防止または減少させる方法
IPC: C09D7/45
Filed: 2006-02-01
Abstract: −Ｓｉ（ＯＲ”） ３ （但しＲ”＝Ｈ、アルキル基、Ｎａ、ＫまたはＮＨ ４ である）を含む側鎖または末端基を少なくとも０．５モル％有する重合体を使用して、アルカリ性の工程流、例えばパルプ製造工程流を有する工業的過程においてアルミノ珪酸塩のスケールの生成を抑制する材料および方法が提供される。本発明の材料をアルカリ性の工程流に加えた場合、本発明の材料は蒸発器の壁面および加熱表面のような装置の表面におけるアルミノ珪酸塩のスケールの生成を減少させ、また完全にこれを防止することさえある。本発明の材料は、経済的に実施し得る処理濃度において有効である。
Patent JP-2008532075-A (JP)
IPC: G09C1/00
Filed: 2006-02-21
Abstract: The present invention is directed to a three-phase encryption method and a three-phase decryption method, and an apparatus implementing the three-phase encryption method and/or the three-phase decryption method. To encrypt a message according to the three-phase encryption method, a content of a message is converted from a first form M to a second form M′; the content of the message is separated according to a spacing pattern; and the content of the message is scrambled according to a scrambling pattern. To decrypt the message encrypted using the three-phase encryption method, the scrambling and spacing patterns are reversed, and the content of the message is converted from the second form M′ to the first form M.
Patent JP-2008531260-A (JP)
Title: 炭化水素またはアルコールにより排気流中の窒素酸化物を還元するための触媒および方法
IPC: B01J29/80
Filed: 2006-02-24
Abstract: 炭化水素または酸素含有有機化合物還元剤による還元により排ガス中の窒素酸化物を還元するための触媒系および方法が提供される。この触媒系は銀触媒とモディファイア触媒を含み、該モディファイア触媒はモディファイア酸化物を含み、該モディファイア酸化物は、酸化鉄、酸化セリウム、酸化銅、酸化マンガン、酸化クロム、酸化ランタニド、酸化アクチニド、酸化モリブデン、酸化スズ、酸化インジウム、酸化レニウム、酸化タンタル、酸化オスミウム、酸化バリウム、酸化カルシウム、酸化ストロンチウム、酸化カリウム、酸化バナジウム、酸化ニッケル、酸化タングステン、ならびにこれらの混合物からなる群から選択される。モディファイア酸化物は１種または複数の無機酸化物担体に担持されており、該無機酸化物担体の少なくとも１種は酸性担体である。銀触媒とモディファイア触媒の触媒系は、銀触媒単独またはモディファイア触媒単独よりもより高いＮＯ ｘ 転化率を与える。 【選択図】  なし
Patent JP-2008531659-A (JP)
IPC: A61P1/08
Filed: 2006-03-03
Abstract: This invention concerns substituted oxa-diaza-spiro-[5.5]-undecanone derivatives having neurokinin antagonistic activity, in particular an NK1 antagonistic activity, an NK3 antagonistic activity, a combined NK1/NK2 antagonistic activity and a combined NK1/NK2/NK3 antagonistic activity, their preparation, compositions comprising them and their use as a medicine, in particular for the treatment and/or prophylaxis of schizophrenia, emesis, anxiety and depression, irritable bowel syndrome (IBS), circadian rhythm disturbances, pre-eclampsia, nociception, pain, in particular visceral and neuropathic pain, pancreatitis, neurogenic inflammation, asthma, chronic obstructive pulmonary disease (COPD) and micturition disorders such as urinary incontinence. The compounds according to the invention can be represented by general Formula (I) and comprises also the pharmaceutically acceptable acid or base addition salts thereof, the stereochemically isomeric forms thereof, the N-oxide form thereof and prodrugs thereof, wherein all substituents are defined as in Claim 1.
Patent JP-2008532083-A (JP)
Title: 画像データをフレームメモリに一時的に記憶する新たな圧縮フォーマットを用いる新たな圧縮フォーマット及び装置
IPC: G09G3/20
Filed: 2006-02-22
Abstract: カラー画像を表す画像データを一時的に記憶するフレームメモリ（４３）及びＲＧＢフォーマットの画像データを供給するデータバスを有する表示ドライバ（４０）。表示ドライバ（２）は、画像データの画素クラスタの性質の分析に基づく符号化決定プロセス（４２）を実行する手段を具える。決定プロセス（４２）を実行する手段によって、表示ドライバ（４３）は、第１の圧縮フォーマットと第２の圧縮フォーマットのうちのいずれを画素クラスタの圧縮に適用するかを決定することができる。第１の圧縮手段（３３．１）は、画素クラスタの第１の圧縮形態への圧縮を行い（量子化されたＲＧＢ）、第２の圧縮手段（３３．２）は、画素クラスタの第２の圧縮形態への圧縮を行う（圧縮された色）。画像データの一部を、第１の圧縮フォーマットの記憶領域に記憶できるとともに画像データの他の部分を、第２の圧縮フォーマットの記憶領域に記憶できるようにするために、画素クラスタ及び関連の圧縮フォーマットコードを、圧縮後フレームメモリ（２４）の利用できる記憶領域に記憶することができる。圧縮フォーマットコードは、第１の解凍フォーマットと第２の解凍フォーマットのうちのいずれを画素クラスタの解凍に適用するかを表示ドライバ（２０）が決定できる決定プロセスを実行するのに用いられる。
Patent JP-2009162971-A (JP)
Title: Endless belt device and image forming apparatus
Inventor: NAKAYAMA TAKAHIRO
IPC: B65H5/02
Filed: 2008-01-04
Abstract: <P>PROBLEM TO BE SOLVED: To provide a belt device having accurate traveling stability by rotationally driving an elastic belt by frictional force generated with another member coming in contact with the elastic belt such as an image carrier or a recording medium without necessitating a motor for independently driving the elastic belt or a velocity sensor or the like in order to drive the elastic belt.  <P>SOLUTION: The image forming apparatus 1 includes a paper feeding device 80 which supplies and conveys stored recording paper P, and has an elastic separation conveying belt 11a which conveys the recording paper P at a position opposed to a photoreceptor 20. The elastic separation conveying belt 11a is driven by the frictional force generated with the photoreceptor 20 and/or the recording paper P which is being conveyed.  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2009161120-A (JP)
Title: Electric power steering device
Inventor: TSUCHIMOCHI JUN
IPC: B62D119/00
Filed: 2008-01-09
Abstract: <P>PROBLEM TO BE SOLVED: To provide an electric power steering device for quickly returning to a state capable of assisting steering, by shortening charging time of an auxiliary power source, by supplying a regenerative current recirculated to the power source only to the auxiliary power source connected in parallel to a main power source.  <P>SOLUTION: This electric power steering device has the main power source composed of an on-vehicle generator 34 and an on-vehicle battery 26, a steering assisting motor 18 driven by the main power source and a motor driving circuit 13, and the auxiliary power sources 29 and 32 connected in parallel to the main power source and the motor driving circuit 13 and assisting an electric current made to flow to the motor 18, and controls the electric current flowing to the motor 18 based on steering torque detected by a torque sensor 10, and has a motor current detecting circuit 17 detecting the electric current flowing in the motor driving circuit 13 from the main power source and the auxiliary power sources 29 and 32, a relay driving circuit 15 and a relay contact point 15a cutting off the main power source from the auxiliary power sources 29 and 32 when the motor current detecting circuit 17 does not detect the electric current flowing in the motor driving circuit 13.  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2008181124-A (JP)
Title: Method and system for evaluating evaluated pattern of mask
Inventor: SCHWARZBAND ISHAI
IPC: G03F1/08
Filed: 2008-01-10
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method, a system and a computer program product for evaluating an evaluated pattern of a mask.  <P>SOLUTION: The method includes: receiving multiple moments that represent an image of the evaluated pattern, wherein a size of information required for representing the multiple moments is substantially smaller than a size of pixel information that form the image of the evaluated pattern; and processing the multiple moments in order to determine at least one shape parameter of the evaluated pattern.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2009170659-A (JP)
Title: Nonvolatile semiconductor storage device
Inventor: NAKAO TAKASHI
IPC: H01L29/788
Filed: 2008-01-16
Abstract: <P>PROBLEM TO BE SOLVED: To provide an arrangement design to suppress a Yupin effect, and to miniaturize and highly integrate a memory cell.  <P>SOLUTION: In this nonvolatile semiconductor storage device, stripe-like element formation regions 11 are arranged in parallel to one another, and a plurality of nonvolatile memory cells having charge storage layers 12 and control gates 13 are arranged on each element formation region 11. The charge storage layers 12 of the regions adjacent to each other, out of the element formation regions 11 different from each other, are arranged by being shifted in the stripe direction.  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2009167472-A (JP)
Title: Directly firing type continuous heating furnace for steel sheet
Inventor: KAMETANI TAKEFUMI
IPC: C21D1/52
Filed: 2008-01-16
Abstract: <P>PROBLEM TO BE SOLVED: To provide a directly firing type continuous heating furnace for steel sheet by which the temperature of the steel sheet is kept almost uniform in the width direction and the steel sheet having little unevenness in the characteristics can stably be produced, and in the case that the performance for almost uniforming the temperature of the steel sheet in the width direction has deteriorated, this defect can be repaired in a short time.  <P>SOLUTION: The directly firing type continuous heating furnace is provided with: inner walls 4 constituted with a refractory, such as refractory brick; hearth-rolls 2 for conveying the steel sheet 1 while keeping it in a horizontal position; and a plurality of burners 3 for heating the steel sheet. Then, on the furnace hearth part 4a in the inner walls, a spherical heat-storage member 5 covering the surface with high radiating material, is laid. It is desirable that the heat-storage member is disposed at the position facing the center part in the width direction of the steel sheet.  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2009169169-A (JP)
Title: Image forming apparatus
Inventor: WADA TOMOHIRO
IPC: G03G15/16
Filed: 2008-01-17
Abstract: <P>PROBLEM TO BE SOLVED: To suppress or prevent the change of the rotational speed of an endless belt, even when the recessed groove of a transfer roll faces a backup roll and frictional force is reduced.  <P>SOLUTION: A contact area is made extremely small and the frictional force is reduced, while the recessed groove 136 of the transfer roll 134 faces an intermediate transfer belt 104 (backup roll 132), so that a drive roll 120 and the intermediate transfer belt 104 are easily slipped against each other. The engagement pins 152 of the transfer roll 134 are engaged with the engagement holes 150 of both ends in the width direction of the intermediate transfer belt 104 to transfer driving force, thereby suppressing or preventing the change of the rotational speed of the intermediate transfer belt 104.  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2009171348-A (JP)
Title: Mobile communication system
Inventor: TOYODA TETSUYA
IPC: H04M3/00
Filed: 2008-01-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide a mobile communication system for detecting abnormality in incoming operation of a mobile unit.  <P>SOLUTION: An exchange server is installed in an exchange to transmit a call signal to a mobile unit via a base station. The mobile unit, when its own incoming operation is normal, transmits a response signal for performing communication for an incoming call in accordance with a call signal representing incoming. The exchange server, when the mobile unit is in a waiting state which is a communicatable state, obtains a time band of the waiting state as a waiting time band. The exchange server, when the response signal from the mobile unit is not received after transmitting the call signal to the mobile unit, generates incoming NG information including incoming NG time as the time of no reception. If the incoming NG time of the incoming NG information is included in the waiting time band when the mobile unit starts communication and then ends the communication, the exchange server outputs an incoming abnormality alarm representing the existence of abnormality in the incoming operation to an output device.  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2008211964-A (JP)
Title: Motor drive controller, hybrid system, and drive control method of motor drive controller
Inventor: NAKADA TETSUO
IPC: H02M7/00
Filed: 2008-01-18
Abstract: <P>PROBLEM TO BE SOLVED: To provide a drive control method of a motor drive controller capable of preventing an arm, and the like, in linkage with a motor from falling into an uncontrolled condition, even if the temperature in an inverter, and the like, becomes higher than a predetermined level.  <P>SOLUTION: The motor drive controller has a charger 4 capable of charging a DC voltage, the inverter 3 for inverting the DC voltage from the charger 4 to an AC voltage, a motor 10 driven by the inverter 3, and a controller with a first temperature level set therein. Furthermore, the controller sets a second temperature level to be higher than the first temperature level according to the drive condition of the motor 10, when the temperature becomes higher than the first temperature level, at a predetermined location inside the motor drive controller during decelerating operation of the motor 10. The controller stops the inverter 3, after the drive of the motor 10 has stopped.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008307884-A (JP)
Title: Bamboo fiber molding and bamboo fiber molding-carbonized material
Inventor: SUEKANE YASUMASA
IPC: B29L31/10
Filed: 2008-01-22
Abstract: <P>PROBLEM TO BE SOLVED: To obtain a bamboo fiber molding from which a rigid material, a semi-rigid material or a block-shaped elastic material can be formed, which can be used as building materials including wall materials and thermal insulating materials, mats, noise absorbing materials and buffer materials and used for other purposes and in which planed/peeled bamboo fibers are used as a base material, and to obtain a bamboo fiber molding-carbonized material obtained by carbonizing the bamboo fiber molding.  <P>SOLUTION: Filament-like planed/peeled bamboo fibers 1 obtained by planing or peeling a collected bamboo material in the direction perpendicular to the fiber orientation of the bamboo material are used as a raw material of the bamboo fiber molding X using a bamboo fiber as the base material. Water is sprayed toward/supplied to the planed/peeled bamboo fibers 1 to moisten them. A powdery paste material 2 in an absolutely dry state is added to the moistened bamboo fibers and the paste material-added bamboo fibers are mixed. The resulting planed/peeled bamboo fibers 1 are entangled with one another. The entangled bamboo fibers are charged in a mold to smoothen the surface of the charged bamboo fibers, the surface-smoothened bamboo fibers are deaerated or compacted at a predetermined reduction rate and the deaerated or compacted bamboo fibers are molded by heating. Sometimes, the bamboo fiber molding-carbonized material is manufactured by carbonizing the bamboo fiber molding X thus obtained.  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2009176066-A (JP)
Title: Grouping report web system and method of controlling the system
Inventor: MIYAZAKI YU
IPC: G06F13/00
Filed: 2008-01-24
Abstract: <P>PROBLEM TO BE SOLVED: To solve the problem in which although an environment capable of easily performing communications between users by Internet access is created at present, Web browsing is used only for independent pleasure of individual users, and not for communications or real-time experience sharing between users.  <P>SOLUTION: The grouping report Web system includes a chat server device and a terminal device, and has the function of detecting, for example, that users with friend registration or the like are browsing the same Web page, and reporting that effect to the users.  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2008277745-A (JP)
Title: Method for manufacturing magnet
Inventor: SAKAMOTO TOKUJI
IPC: H01F41/02
Filed: 2008-01-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a magnet capable of obtaining a magnet having a high Br.  <P>SOLUTION: The method for manufacturing the magnet of the preferable embodiment of this invention comprises a step of kneading for obtaining a kneaded material by kneading a mixture including a magnetic powder, a solvent, and a dispersant; a step of molding for obtaining a molded material by molding the kneaded material; and a step of burning the molded material. In the step of kneading, the kneading of the mixture is conducted with the content of the magnetic powder in the mixture of 85 to 95 mass%. A dilution step of the method for manufacturing the magnet for diluting the mixture by further adding the solvent before the molding step after the kneading step is preferably conducted.  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2009182555-A (JP)
Title: Piezoelectric vibrating reed, piezoelectric vibrator, oscillator, electronic device, wave clock, and method of manufacturing piezoelectric vibrating reed
Inventor: KOBAYASHI TAKASHI
IPC: H01L41/29
Filed: 2008-01-30
Abstract: <P>PROBLEM TO BE SOLVED: To provide a tuning-fork piezoelectric vibrating reed that is made further compact while securing a constant R1 value, and to provide a method of manufacturing a piezoelectric vibrating reed for manufacturing the piezoelectric vibrating reed describe above.  <P>SOLUTION: The piezoelectric vibrating reed 2 includes: a piezoelectric plate 11 having a pair of vibrating arms 8 and 9 provided parallel to each other, a base portion 10 to integrally fix the pair of vibrating arms at a base end side thereof, and grooves 17 formed on both principal surfaces of the pair of vibrating arms in a constant length L from base ends toward tip ends of the vibrating arms; and an electrode film formed of a base metal layer and a finishing metal layer laminated on outer surfaces of the piezoelectric plate and configured to vibrate the pair of vibrating arms when a predetermined voltage is applied thereon. The finishing metal layer of the electrode film is removed either partially or entirely at least in regions from the base ends to the tip ends of the vibrating arms.  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2009179128-A (JP)
Title: Pedestrian collision sensing device
Inventor: TANABE TAKATOSHI
IPC: B60R19/22
Filed: 2008-01-30
Abstract: <P>PROBLEM TO BE SOLVED: To provide a pedestrian collision sensing device capable of exerting collision sensing performance based on deformation and internal pressure rise upon pedestrian collision without causing damage to a chamber member.  <P>SOLUTION: The chamber member 6 comprises materials having 500 MPa flexural modulus or less, therefore, collapse load tolerance upon pedestrian collision becomes 2 kN or less, and impact absorbing performance of an absorber 5 (reaction force upon pedestrian collision is 6-8 kN) provided in a bumper 2 is not adversely affected. Besides, the chamber member 6 comprises materials having 5 MPa tensile yield stress or more, therefore, pressure tolerance inside a chamber area 6a becomes 100 kPa or more, preventing burst due to internal pressure rise caused by pedestrian collision. Moreover, since the chamber member 6 comprises materials having 300% tensile breaking elongation or more, crack does not occur due to collapse and deformation upon pedestrian collision.  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2009186223-A (JP)
Title: Infrared sensor
Inventor: TAKAHASHI HISASHI
IPC: G01J1/02
Filed: 2008-02-04
Abstract: <P>PROBLEM TO BE SOLVED: To provide an infrared sensor with a simple structure, which suppresses variations in semiconductor characteristics of each element and prevents the thermoelectric conversion efficiency from lowering due to the variations in the semiconductor characteristics.  <P>SOLUTION: The infrared sensor S includes: a substrate 10 with an insulating layer 11; a thermoelectric transducer 20 disposed on the substrate 10 through the insulating layer 11; and an infrared absorbing layer 30 disposed on the thermoelectric transducer 20. The thermoelectric transducer 20 includes at least one single element 25 which includes a heated surface specified as a one-side surface and a cooled surface specified as an opposite-side surface, and generates electricity in accordance with a temperature difference between the heated surface and the cooled surface. The single element 25 includes: a sintered body cell 21 made of a composite metal oxide; a pair of electrodes 22, 23 formed on the heated surface and the cooled surface of the sintered body cell 21; and a lead wire 24 for electrically connecting the electrode 22 on the heated surface side to the electrode 23 on the cooled surface side in series.  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2009186651-A (JP)
Title: Method for manufacturing antireflection film, antireflection film, polarizing plate, and image display device
Inventor: OKANO MASARU
IPC: G02F1/1335
Filed: 2008-02-05
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for manufacturing an antireflection film excellent in chemical resistance, adhesiveness and scratch resistance after moisture-heat treatment under conditions of high temperature and high humidity.  <P>SOLUTION: In the method for manufacturing an antireflection film by stacking a hard coat layer directly or over other layers on a film base material and further stacking a low refractive index layer on the hard coat layer, the hard coat layer contains at least one fluorine-siloxane grafted polymer, and after the hard coat layer is subjected to surface treatment, a low refractive index layer is stacked thereon, which contains at least one hollow silica-based particles having an outer shell layer and a porous or hollow inner part.  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2009188605-A (JP)
Title: Image processing apparatus and method
Inventor: TAKEYAMA YASUTOYO
IPC: G06T5/00
Filed: 2008-02-05
Abstract: <P>PROBLEM TO BE SOLVED: To generate image data to which appropriate tone correction is applied.  <P>SOLUTION: The image processing apparatus for correcting the tone of contrast stretched image data for which contrast stretching processing is performed to source image data includes: a differential value calculation part 103 for calculating a differential value between the pixel value of position coordinates to be a processing object included in the source image data and a pixel value near the position coordinates; a tone difference holding pixel value calculation part 105 for calculating a tone difference holding pixel value by adding the differential value to an already tone corrected pixel value nearby; a ω calculation processing part 104 for calculating weight ω for increasing the ratio of the tone difference holding pixel value to the pixel value included in the contrast stretched image data as the differential value is smaller; and an averaging processing part 106 for averaging the pixel value included in the contrast stretched image data and the tone difference holding pixel value by the weight ω and calculating the tone corrected pixel value at the position coordinates to be the processing object.  <P>COPYRIGHT: (C)2009,JPO&INPIT