baber/WOPTO huggingface dataset:
Patent JP-2006511930-A (JP)
Title: 電子式自動車制御装置用のプリント回路基板
IPC: H01H85/046
Filed: 2003-06-14
Abstract: 電子回路用のストリップ導体と、給電用の端子とを備え、適切なはんだを用いて少なくとも１個のＳＭＤ構成要素や他の電子的および／または電気的な部品が実装され、給電部が１つまたは複数の給電用ストリップ導体（２）に接続されている、プリント回路基板（１，１′）において、熱の発生に対して簡単な手段で効果的に防護すべきである。そのために、本発明に従い、少なくとも１つの給電用ストリップ導体（２）が、溶融ブリッジ（６）によって導電的に架橋された中断部を備え、溶融ブリッジ（６）が、ストリップ導体を形成する材料の融点よりも低い融点を有する基礎材料を含んでいるかまたはこの基礎材料からなっている。
Patent JP-2005536543-A (JP)
Title: ビオチンを含む新規栄養補助食品組成物
IPC: A23L33/15
Filed: 2003-08-18
Abstract: 栄養補助食品組成物が、体重１kg当たり０．０１〜約３mgの１日投薬量を対象に投与するのに十分な量のビオチンと、パンテチン又はその代謝産物、ＥＧＣＧ、フィタン酸、リポ酸及びポリコサノールより選択される少なくとも一つの付加的な成分とを含む。本組成物は、１型及び２型の糖尿病の処置、並びに前糖尿病又は耐糖能異常（ＩＧＴ）もしくは肥満を有する個体における２型糖尿病の予防に有用である。
Patent JP-2005538732-A (JP)
Title: 冷凍デザートの包装方法
IPC: B67D1/04
Filed: 2003-09-05
Abstract: 本発明は、濃厚なるも柔順な冷凍デザートを包装し、これを加圧して膨張状態で注出する方法である。この方法によると、ａ）半凍結状態の製品が、コンテナ（１）内で製品中に均一に分布した可溶性ガスを含み、前記製品に事実上不溶性である推進ガスが選択され、ｂ）前記製品は、注出部材（３）を開放することによって注出され、充填中に、製品内に溶解している膨張ガスの膨張によって、決定された度合いまで製品が膨張する。
Patent JP-2006502223-A (JP)
Title: 白金フリーのニートな銅含有触媒を用いるヒドロシリル化
IPC: C07F7/08
Filed: 2003-09-05
Abstract: 白金フリーのニートな銅含有触媒の存在下、ハロゲン化オレフィンと水素化有機ケイ素との反応を介してクロロプロピルシランが調製される。トリエチルシランなどの水素化有機ケイ素、塩化アリルなどのハロゲン化オレフィン、並びに酢酸銅、塩化銅、硫酸銅、水酸化銅、硝酸銅及びシアン化銅などの触媒を、該方法で用いることができる。
Patent JP-2006503761-A (JP)
IPC: B65B43/36
Filed: 2003-10-23
Abstract: The invention relates to a device and a method for separating film layers ( 8 ), which consist of different materials and are joined together in an air-thigh manner by adhesion, a material bond or similar forms of bonding, in a simple manner. In this case, separation means that only one respective layer ( 18 ) is pierced and raised by rotation by means of a screw-type thread ( 16 ), allowing a gaseous medium, (e.g. air) or liquid medium, (e.g. water) to be introduced into the gap that has been created between said layer and the second film layer ( 17 ). The method and the device are characterised in that they are simple and can be applied in any position on the film workpieces. No additional openings, distances, valves or similar in the films therefore need to be considered and no prior material treatment, (introduction of separation elements) is required in order to subsequently fill bags that are produced in this manner. Production costs are thus minimised, handling times are reduced and material expenditure or the creation of composites by the introduction of other materials is avoided.
Patent JP-2006505972-A (JP)
IPC: H04Q7/22
Filed: 2002-11-07
Abstract: In a flexible layer one (403) of a GERAN transmitter device, a TFCI, which indicates a particular combination of cyclic redundancy check, channel coding and rate matching, is generated by a TFCI generating process (412) using information from the medium access control layer. The TFCI is coded by a coding process (413), and inserted into the data stream by a TFCI insertion process (414). Each code has more bits than the corresponding TFCI, and identifies uniquely the TFCI. The coded TFCI is spread across the pre-interleaved block with portions placed in fixed positions in each burst. Interleaving is then performed by an interleaver (411). The coded TFCI used with a half-rate channel is the central segment of the coded TFCI used in the corresponding full-rate channel. The additional loss is so small as to be insignificant, but the FER performance is significantly improved, compared to using the full-rate codes, as a result of the increased payload of the content data bits. In half-rate mode, the amount of coded TFCI data gives rise to a ratio of the performance of the coding of the transport format combination data to the performance of the coded content data which is at a similar level to the ratio in the full-rate mode.
Patent JP-2006505445-A (JP)
Title: 動作的な衝撃保護システム
IPC: B60R21/015
Filed: 2003-09-24
Abstract: 本発明は、モータビークル、特に乗用車の乗客の膝エリア、並びに/若しくは下肢エリアのための動作的な衝撃保護システム（１）に関する。この衝撃保護システム（１）は、受動位置から動作位置へと駆動装置（４）によって乗客に向けて伸ばされることができる衝撃部材（２）を有している。特に効果的なデザインによって、この衝撃蓋部（２）は、乗客側のグローブボックス（３）の蓋部によって形成されている。
Patent JP-2006506486-A (JP)
Title: 膨張性専門化学物質を含有する、熱可塑性又は熱硬化性耐火組成物
IPC: C08K5/52
Filed: 2003-11-13
Abstract: 難燃性プラスチック樹脂混合物は、膨張性難燃剤及び少なくとも１つのプラスチック樹脂から構成される。エンジニアリング樹脂混合物は、膨張性難燃剤及び少なくとも１つのエンジニアリング樹脂から構成される。熱硬化性樹脂混合物は、膨張性難燃剤及び少なくとも１つの熱硬化性樹脂から構成される。プラスチック樹脂混合物とエンジニアリング樹脂混合物は、非ハロゲン系のものであり、熱硬化樹脂混合物は、実質的に非ハロゲン系である。
Patent JP-2006503307-A (JP)
Title: 体温測定プローブ較正方法
IPC: G01K7/42
Filed: 2003-10-14
Abstract: 体温測定装置において使用される個々の体温計プローブに関する特性データを各プローブ毎にEEPROMに保存することにより、これらプローブにおける熱的質量および製造ばらつきを補償する。
Patent JP-2006510812-A (JP)
IPC: D21F7/08
Filed: 2003-12-15
Abstract: The invention relates to a method of manufacturing a press felt and to a press felt and a base fabric. The base fabric comprises at least a first planar compo-nent ( 4 ), which includes a first transverse (CMD) joining edge area ( 11 ) and a second transverse joining edge area ( 12 ). The joining edge areas ( 11, 12 ) are arranged to overlap each other and attached to each other undetachably.
Patent JP-2006512529-A (JP)
Title: 排気ガス後処理装置及び方法
IPC: F01N3/30
Filed: 2003-12-16
Abstract: 本発明は、ＮＯ ｘ 吸蔵触媒及びＳＣＲ触媒を含んでなる排気ガス後処理装置、並びに、対応する排気ガス後処理方法に関する。本発明によれば、微粒子フィルタが、ＮＯ ｘ 吸蔵触媒の上流側、ＮＯ ｘ 吸蔵触媒とＳＣＲ触媒との間、もしくはＳＣＲ触媒の下流側に備えられ、及び／又は、ＮＯ ２ 生成触媒がＳＣＲ触媒の上流側に備えられる。ＮＯ ｘ 吸蔵触媒の再生モードの時間は、ＮＯ ｘ 吸蔵触媒又はＳＣＲ触媒の下流側の排気ガスのＮＯ ｘ 含量、及び／又はそのアンモニア負荷に応じて定めることができる。また、所望のアンモニア製造量は、それぞれの再生モードに対して定めることができる。本発明はまた、例えば、主にリーン混合自動車内燃機関用の本発明の装置の使用及び使用法に関する。
Patent JP-2006514665-A (JP)
Title: 慢性心不全および／または上昇したコレステロールレベルを処置するための方法
IPC: C07C67/08
Filed: 2003-10-20
Abstract: 本発明は、うっ血性心不全および／または上昇したコレステロールの血液レベルを有する患者のための処置に関する。治療的有効量の３’，３，５−トリヨードサイロプロピオン酸（ＴＲＩＰＲＯＰ）または３，５，３’，５’−テトラヨードサイロプロピオン酸（ＴＥＴＲＡＰＲＯＰ）を投与することによってうっ血性心不全を有する患者を処置するための方法が記載される。治療的有効量のＴＲＩＰＲＯＰまたはＴＥＴＲＡＰＲＯＰを投与することによって、患者のコレステロールの血液レベルを低下させるための方法もまた記載される。
Patent JP-2006524485-A (JP)
IPC: C12N15/13
Filed: 2003-11-20
Abstract: A method of inhibiting angiogenesis in an individual in need thereof comprising administering an antibody that selectively binds to the extracellular region of human magic roundabout (MR) to the individual. An antibody that has the amino acid sequences i) to iii), the amino acid sequences iv) to vi), or the amino acid sequences i) to vi). i) S A S S S V S Y M Y ii) L T S N L A S iii) Q Q W S S N P L T iv) D Y N L N v) V I N P N Y G T T S Y N Q K F K G vi) G R D Y F G Y. A method of inhibiting angiogenesis in an individual in need thereof comprising administering the extracellular domain (residues 1-467) of MR, or a fragment thereof that inhibits angiogenesis, to the individual. A method of inhibiting endothelial cell migration and/or proliferation comprising administering the extracellular domain of MR, or a fragment thereof that inhibits endothelial cell migration and/or proliferation.
Patent JP-2006509478-A (JP)
Title: チャネル品質表示（ｃｑｉ）の信頼性検出およびアウターループ送信電力制御への応用
IPC: H04W72/08
Filed: 2003-12-02
Abstract: 無線通信ネットワークでのチャネル品質表示（ＣＱＩ）（図３の１０２、１０６）のメッセージの信頼性を改善する方法は、ＣＱＩのメッセージの受信から開始する。次いでＣＱＩメッセージをデコードし、およびＣＱＩメッセージ中の各シンボルについての決定メトリック値を計算する。ＣＱＩメッセージについての最大の決定メトリック値および２番目に大きい決定メトリック値を求める。最大の２つの決定メトリック値を比較することによってＣＱＩのメッセージの信頼性を決定することができる。この方法は、時分割複信、周波数分割複信、または他の伝送のモードでの高速なダウンリンクのパケットアクセスに適用可能である。
Patent JP-2006191761-A (JP)
Title: Three-phase motor
Inventor: TAKASHIMA SHINYA
IPC: H02P6/06
Filed: 2005-01-07
Abstract: <P>PROBLEM TO BE SOLVED: To perform index detection in a three-phases brushless motor for OA such as LBP, PPC by a simple circuit configuration.  <P>SOLUTION: In this three-phases blushless motor, a flux amount change 2 in which multiple poles are polarized and the amount of flux at a portion is changed, and three position detectors are disposed at intervals of 0° (60+360×n) degrees, and (120+360×m) degrees at an electrical angle using n and m as an integer. The polarity of an output signal of the position detector disposed at the (60+360×n) degrees among the position detectors and polarities of the other output signals of the three position detectors are relatively reversed, output signals of the reversed three position detectors are added and composed, and the composed output signals and the reference voltage are compared to each other, thus obtaining the index signal by the simple constitution.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006188625-A (JP)
Title: Polypropylene-based composite material
Inventor: TSUKAHARA YOSHIAKI
IPC: C08K3/34
Filed: 2005-01-07
Abstract: <P>PROBLEM TO BE SOLVED: To provide a thermoplastic resin composition which has excellent rigidity, excellent heat resistance, excellent light resistance, and improved fogging resistance, and is used for automotive interiors, and to provide an automotive interior part using the thermoplastic resin composition.  <P>SOLUTION: This thermoplastic resin composition for automotive interiors is characterized by (i) containing 40 to 100 wt.% of a propylenic polymer (A-1) produced in the presence of a metallocene catalyst and having a mol.wt. distribution (Mw/Mn) of 1 to 4 measured by GPC, (ii) having a melt flow rate of 5 to 70 g/10 min at 230°C, and (iii) having a glass plate haze value of ≤4% after heated at 120°C for 20 hours with an apparatus according to the regulation of ISO6452.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2005246959-A (JP)
Title: Method for making foamed material with three-dimensional protrusive pattern by utilizing thermoplastic elastic matter
Inventor: SHI ZUISEI
IPC: B29C44/56
Filed: 2005-01-11
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for making a foamed material with a three-dimensional protrusive pattern by utilizing thermoplastic elastic matter which enables the mass production of a foamed material sheet with an antislip effect.  <P>SOLUTION: A foamed material sheet 21 is manufactured by utilizing a thermoplastic elastic matter pellet. A high-temperature-resistant net fabric 40 with a mesh of a predetermined size is fixed by being stuck on at least one surface of the sheet 21, heated by a heating device, and softened to a degree to which the sheet 21 is plasticized. The sheet 21 is pressurized by using at least one set of molds; and a plurality of small recessed grooves are uniformly provided in the surface of the mold for pressurizing one surface where the sheet 21 is covered with the fabric 40. A part 22 subject to slightly high pressure in the foamed material which has already been plasticized in a heating step moves to a part 23 subject to slightly lower pressure, and penetrates the meshes; and the uniform and three-dimensional protrusive pattern 90 can be formed in a position corresponding to each mesh of the surface of the sheet 21.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005146848-A (JP)
Title: Decorative material for floor member and its manufacturing method
Inventor: ISHIDA SEIICHI
IPC: B32B21/08
Filed: 2005-01-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide a decorative material for a floor member having excellent surface physical properties such as resistance to scratch damage, wear, and pollution and waterproofing, having a section in which, in particular, a channel is cut and which has excellent waterproofing to prevent occurrence of a problem such as loss of color, and capable of dispensing with trouble of selective application work in the channel cut section requiring time and labor considerably.  <P>SOLUTION: This decorative material 10 for the floor member is constituted in such a way that a sheet 4 made of synthetic resin and provided with recessed and projecting patterns is bonded on a wooden basic material 2 through an adhesive layer 3 and a channel part 5 reaching at least the wooden basic material is provided on a synthetic resin-made sheet side. An ink filled layer 6 is formed in the recessed part 40 in the recessed and projecting patterns and in the channel part of the decorative material for the floor member to make the whole surface substantially flush. A surface protection layer 7 made of hardening resin is formed on the whole recessed and projecting pattern face of the synthetic resin-made sheet.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2006192645-A (JP)
Title: Information processing apparatus, method for setting communication for information processing system, and controlling program
Inventor: FUKUNAGA KOJI
IPC: G06F3/12
Filed: 2005-01-12
Abstract: <P>PROBLEM TO BE SOLVED: To solve the problem that when resetting is tried to perform by a printer in which a filtering has been already set in a network installing, it is necessary either to release the filtering in advance or to initialize the printer for the installing, and when the filtering is restored after the installing, it is necessary to input again.  <P>SOLUTION: In order to obtain convenience of the installing, when the filtering is set, the filtering is released temporarily, and it is returned to the original state after the installing is finished. In addition, when a host PC for the installing is not an object for the filtering, the installing is made simpler by adding automatically to the filtering.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006195654-A (JP)
Title: Traceability system
Inventor: MIKAWA AIKO
IPC: G06Q50/10
Filed: 2005-01-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide a traceability system capable of providing relief and safety of natural products to consumers.  <P>SOLUTION: This system comprises a place and date certification server 5, which substitutes, upon receiving an authentication request from a production/shipping history server 3 or a distribution history server 13, a weather image at that receiving time and GPS data contained in the authentication request to a hash function to determine a hash value, and generates an authentication key including the hash value. The authentication key generated by the server 5 is added to pictures which are shooting results of cameras 52 of cellular phones 1 and 11, and the pictures are stored in a browsable information disclosure server 6.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006192369-A (JP)
Title: Safety cabinet and air cleaning unit
Inventor: KIMIYA TETSUO
IPC: F24F7/06
Filed: 2005-01-13
Abstract: <P>PROBLEM TO BE SOLVED: To provide a power-saving and low-noise safety cabinet, and air cleaning unit.  <P>SOLUTION: The air cleaning unit has a constitution of installing an air rectification member having a conical shape or the like at external space on the air suction port side of a fan unit for circulating air, and guiding the circulating air to the air suction port side in a rectified state by the surface part of the air rectification member to be sucked in the fan unit, wherein the air discharged from the fan unit is further passed through a filtrating filter in a state of smooth flow, and then discharged in work space as clean air having flow velocity distribution securing uniformity.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006195789-A (JP)
Title: Lens distortion estimation apparatus, lens distortion estimation method, and lens distortion estimation program
Inventor: MIYAGAWA ISAO
IPC: G06T3/00
Filed: 2005-01-14
Abstract: <P>PROBLEM TO BE SOLVED: To solve the following problem: when spatial information on an object in the external world is acquired from an image photographed by manual operation using a video camera or the like and restored, each focus distance changes, so that a conventional factorization method is unavailable and the changing focus distance needs to be restored simultaneously to adjust focus.  <P>SOLUTION: The lens distortion estimation apparatus comprises: a feature point observation part 52 for observing an image coordinate value showing an amount of time change of a feature point of each image in an image coordinate system set to a time-serial image of a subject acquired with a camera means; a factorization processing part 53 for creating matrix data from the image coordinate value to restore a camera viewpoint motion of the camera means and a three-dimensional form of the subject; a parameter estimation part 54 for obtaining re-projection coordinate value from the restored camera viewpoint motion and the three-dimensional form to estimate a lens distortion parameter of the camera means from the re-projected coordinate value and the observed image coordinate value; and an optical axis translational motion restoration part 55 for restoring an optical axis translational motion from the re-projected coordinate value and image coordinates value.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006194788-A (JP)
Title: Particle image processing method and device, and its program
Inventor: YAMAGUCHI KEIICHI
IPC: G06T7/60
Filed: 2005-01-14
Abstract: <P>PROBLEM TO BE SOLVED: To accurately acquire feature information of a particle from a particle image.  <P>SOLUTION: This particle image processing method comprises a process of imaging the particle, a process of performing interpolation processing of increasing the number of constituted pixels of a multi-gradation image formed of a plurality of pixels obtained by imaging, and a process of acquiring information showing the feature of the particle based on the interpolation image having been subjected to the interpolation processing.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006192801-A (JP)
Title: Method for producing tube
Inventor: ANDO MASAHIRO
IPC: B29L23/00
Filed: 2005-01-14
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for producing a tube which can suppress the bias of a tube thickness to the inside of bending.  <P>SOLUTION: A tubular hose raw material 15a is worked into a prescribed shape in a working process and vulcanized to obtain a fuel hose. In the working process, a cap 31 of a contraction jig and a mandrel 41 are used. The cap 31 has a second press part 34. The second press part 34, when the hose raw material 15a is worked into a prescribed shape, presses a position 15c close to a corner inside part 15b which is a place to be the inside of the bending out of parts to be the boundary area between the bent part and normal diameter part of the fuel hose when made the fuel hose toward the mandrel 41.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006194807-A (JP)
Title: Tone wheel
Inventor: YAMAMOTO HIRONORI
IPC: G01P3/487
Filed: 2005-01-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide a tone wheel for eliminating a damage to a rotating member when it is mounted and a harmful influence on a magnetic action of a magnetic pole, and provided with an identification mark.  <P>SOLUTION: The tone wheel 10 is provided with a magnetization area 11b comprising a plurality of S poles and N poles alternately disposed in the circumferential direction, and fixed to the rotating member 4 by press-fit so as to constitute a magnetic encoder E for detecting a rotation speed by a magnetic sensor 9 installed in a fixed member 4. A reference plane 12 is a plane pressed by a jig when the rotating member 4 is fixed by press-fit using the jig. A recess step 11a is formed on the reference plane 12. The identification mark 13 such as a part number is attached to a bottom of the recess step 11a.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2005233601-A (JP)
Title: High-frequency heating device with steam generating function
Inventor: ITO TAKESHI
IPC: F24C1/00
Filed: 2005-01-18
Abstract: <P>PROBLEM TO BE SOLVED: To provide a heating device of which heating chamber can be easily cleaned by a user and which can be used in a pleasant state and without deteriorating fluororesin of an evaporation tray surface.  <P>SOLUTION: After starting preheating, an interior is preheated by a duty for preheating, and an output of a heater 2 is turned off while temperature information from a temperature detection means 10 is rising from a point of time wherein the temperature information from the temperature detection means 10 exceeds a preheating completion level. Detection of the temperature information is continued thereafter by the temperature detection means 10, and from a point of time wherein newly detected temperature information becomes lower than previously detected temperature information, the output of the heater 2 is turned on again, and heating is carried out by a duty for cooking that is different from the duty for preheating. By carrying out output control in control levels, control at high temperature in the heating chamber required in oven preheating and oven cooking can be provided without deteriorating the fluororesin of the evaporation tray surface.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2006199773-A (JP)
Title: Resin composition for insulation and protection film, insulation and protection film, and printed wiring board
Inventor: IKEDA FUMIKO
IPC: C08K5/3492
Filed: 2005-01-19
Abstract: <P>PROBLEM TO BE SOLVED: To provide a resin composition for an insulation and protection film, having high-level flame retardancy, and excellent heat resistance, moisture resistance and high reliability; to provide the insulation and the protection film obtained by curing the composition for the insulation and the protection film; and to provide a printed wiring board having the insulation and protection film.  <P>SOLUTION: The resin composition for the insulation and protection film contains a curable resin material for the insulation and protection film, a phosphoric acid ester compound having ≤59 mg-KOH/g acid value and a melamine cyanurate. The insulation and protection film is obtained by curing the composition for the insulation and protection film. The printed wiring board has the insulation and protection film.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006199407-A (JP)
Title: Expansion/contraction boom
Inventor: HAYAKAWA YOICHI
IPC: B66F9/06
Filed: 2005-01-19
Abstract: <P>PROBLEM TO BE SOLVED: To provide an expansion/contraction boom for smoothly, back and forth movably and internally providing an expansion/contraction cylinder in a distal end boom.  <P>SOLUTION: The expansion/contraction boom is constituted by a proximal boom 51; an intermediate boom 52 expandably/contractably inserted to the proximal boom 51; and the distal end boom 53 expandably/contractably inserted into the intermediate boom 52 and is provided with an expansion/contraction cylinder 60 for expanding/contracting the intermediate boom 52 relative to the proximal boom 51. The expansion/contraction boom 50 has a pair of left and right back and forth extending guide rails 71 on left and right inner side walls 53b of the distal end boom 53 respectively. The expansion/contraction cylinder 60 has an axially relatively movable piston rod 60b. A pair of left and right guide means 65 is provided on a cylinder tube 60a or a piston rod 60b and the guide means 65 are guided by the guide rails 71 and are back and forth moved in the distal end boom 53 according to expansion/contraction of the expansion/contraction cylinder 60.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006208619-A (JP)
Title: Image forming apparatus and image forming method
Inventor: AOKI KATSUHIRO
IPC: G03G15/08
Filed: 2005-01-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide an image forming apparatus and an image forming method where charging performance on the surface of a developer carrier can be kept by suppressing remaining of development residual toner on the developer carrier to reduce deterioration of the toner.  <P>SOLUTION: The image forming apparatus is provided with: a development roller 41 provided opposing a photoreceptor 1 and carrying and transporting a developer housed in a development container 40; a regulation blade 43 for regulating the amount of the developer on the development roller 41; and a feeding roller 42 for feeding and raking the developer by contacting with the development roller 41. As the developer, one-component developer whose aggregation is varied in a range of 4 to 80% is used. At an abutting part of the development roller 41 and the feeding roller 42, the surfaces of them are moved forward. A ratio of a peripheral speed V<SB>DR</SB>of the development roller 41 to a peripheral speed V<SB>SP</SB>of the feeding roller 42 is ¾V<SB>SP</SB>/V<SB>DR</SB>¾≤0.5 or 1.5≤¾V<SB>SP</SB>/V<SB>DR</SB>¾≤4.  <P>COPYRIGHT: (C)2006,JPO&NCIPI