baber/WOPTO huggingface dataset:
Patent JP-2015510601-A (JP)
Title: 自動車両用の制御・表示モジュールおよび製造方法
IPC: G09F9/00
Filed: 2012-12-21
Abstract: 本発明は、インターフェイス・モジュール（１）を製造するための方法に関する。そのインターフェイス・モジュール（１）は、透明平板（Ｓ）を通して見えるべき表示部材（７）を含む。その方法は：フィルム（３）の一定区域上に、枠または記号を画成するように不透明インク（９）をシルクスクリーン印刷する段階と、シルクスクリーン印刷されたインク（９）側のフィルム（３）と、インターフェイス・モジュール（１）の透明平板（Ｓ）との間に、接着材（Ｃ）を被着する段階と、インターフェイス・モジュール（１）の透明平板（Ｓ）上にフィルム（３）を接着して積層する段階とを備えたことを特徴とする。本発明はまた、当該方法によって製造された関連するインターフェイス・モジュールにも関する。
Patent JP-2015507262-A (JP)
Title: マシンビジョンシステムにおいて複数の照明設定を使用する合焦点動作
IPC: G01B11/00
Filed: 2012-12-21
Abstract: 照明状況を自動的に調整する方法は、ＰＦＦ（Point From Focus）３Ｄ再構築の結果を向上させる。複数の照明レベルが輝度基準に基づいて自動的に見つけられ、画像スタックが各照明レベルで撮影される。いくつかの実施形態では、光レベルの数及び各照明設定は、関心領域内の最も暗いか、又は最も明るい画像ピクセルのみの最良合焦高さではなく、関心領域全体の最良高さである単一の大域的合焦高さにおいて取得されたトライアル露光画像に基づいて決定し得る。選択された各光レベルでの３Ｄ再構築の結果は、Ｚ高さ品質尺度を使用して結合される。一実施形態では、Ｘ−Ｙ位置に関連付けるべきＰＦＦデータポイントＺ高さ値は、そのＸ−Ｙ位置での最良に対応するＺ高さ品質尺度値を有するそのＰＦＦデータポイントに基づいて選択される。
Patent JP-2015523943-A (JP)
Title: Ｕｚｍ−３９アルミケイ酸塩ゼオライト
IPC: C10G35/095
Filed: 2012-12-13
Abstract: ＴＵＮ及びＩＭＦゼオライト型の新規な一群のコヒーレント成長した複合体を合成した。これらのゼオライトは以下の実験式で表される。ＮａｎＭｍｋ＋ＴｔＡｌ１−ｘＥｘＳｉｙＯｚ式中、“ｎ”はＮａの（Ａｌ＋Ｅ）に対するモル比で、Ｍは亜鉛、周期律表の第１族、第２族、第３族及び／又はランタノイド系列からの少なくとも１種の金属を表し、“ｍ”はＭの（Ａｌ＋Ｅ）に対するモル比で、“ｋ”は１種以上の金属Ｍの平均電荷であり、Ｔは１種以上の有機構造指向剤であり、Ｅはガリウム等の骨格元素である。これらのゼオライトはＴＮＵ−９及びＩＭ−５に類似しているが、独特な組成と合成方法を特徴とし、種々の炭化水素転化工程を実施するための触媒特性と種々の分離を実施するための分離特性を有する。【選択図】図１
Patent JP-2015503344-A (JP)
Title: 喫煙品用フィルタアセンブリの方法
IPC: A24D1/02
Filed: 2012-12-12
Abstract: フィルタ付き喫煙品のフィルタを製造する方法が提供され、フィルタ材料は流体放出体を含む。方法は、フィルタ材料とフィルタ材料を包含するプラグラップとの間に流体耐性障壁を提供し、障壁はホットメルト接着剤として塗布される。別の態様において、方法を使用するための機構が提供される。
Patent JP-2015508629-A (JP)
Title: 無線通信ネットワークにおける資源開放のための方法及び装置
IPC: H04W72/04
Filed: 2013-01-03
Abstract: 本願の教示するところによれば、ＵＥはネットワークへのＣＣＣＨ送信のために用いられる共通のＥ−ＤＣＨの資源を解放する方法を実行するよう構成される。その方法によれば、ＵＥはそのＵＥのトータルなＥ−ＤＣＨバッファのステータス（ＴＥＢＳ）がゼロに等しいかどうかに係りなく、そのＵＥにおいて利用可能な最後のＣＣＣＨデータを送信する際に、そのネットワークへのスケジューリング情報（ＳＩ）の送信にトリガをかける。そのＵＥはさらに、そのＳＩの送信に応じて共通のＥ−ＤＣＨの資源を解放するよう構成設定される。ある例では、ＵＥは、そのＵＥにおいてＴＥＢＳがゼロに等しいかどうかに係りなく、そのＵＥにおいて利用可能な最後のＣＣＣＨデータを含むＭＡＣ−ｉ ＰＤＵの送信時にＳＩの送信にトリガをかける。その方法はまた、ＵＥにおいてＴＥＢＳがゼロに等しいかどうかに係りなく、そのネットワークにレポートされるＳＩにおいてＴＥＢＳをゼロに設定するＵＥを含むと良い。
Patent JP-2015513469-A (JP)
Title: 希土類永久磁石合金の真空誘導溶製急速凝固設備
IPC: F27B14/04
Filed: 2013-11-06
Abstract: 本発明の希土類永久磁石合金の真空誘導溶製急速凝固設備は、真空誘導溶製急速凝固室と、材料収受保温処理室と、冷却室と、室間隔離バルブとを含む。該材料収受保温処理室と冷却室との間には該室間隔離バルブが設けられている。真空誘導溶製急速凝固室は材料収受保温処理室上に設けられ、その材料案内筒部の出口は材料収受保温処理室に向かう。真空誘導溶製急速凝固室上には水冷電極と、真空装置と、不活性気体導入パイプと、測温装置と、圧力計と、真空計と、安全バルブとが更に設けられている。本発明は、従来の真空急速凝固方法でネオジム鉄ホウ素製品を製造するときに製品の金属組織中の結晶粒子分布が不均一になるか或いは細すぎる小結晶が形成される問題と、常にα-鉄が析出される問題と、希土水素吸蔵合金を生産するときにマンガンが析出される問題とを解決することができる。かつ製品品質と生産効率を向上させ、生産方法を簡素化させ、設備の投資を低減することができる。
Patent JP-2015506836-A (JP)
Title: フィルタ装置及び上記フィルタ装置のためのフィルタエレメント
IPC: B01D29/11
Filed: 2013-01-17
Abstract: 本発明は、内部流体室４を有する少なくとも１個のフィルタエレメント１と、少なくとも１個の棒状体１３を有する永久磁石装置とを備えたフィルタ装置であって、棒状体１３は、該棒状体１３が少なくとも一部流体室４の内部にある機能位置に入れることができ、かつ該機能位置から抜き出すことができる、フィルタ装置において、フィルタ装置には、剥ぎ取り装置が設けられており、該剥ぎ取り装置は、各棒状体１３が機能位置から抜き出される際に少なくとも１個の剥ぎ取りエレメント２９、３１で該棒状体１３の外側と接触して堆積した不純物を剥ぎ取ることを特徴とするフィルタ装置に関する。【選択図】図５
Patent JP-2015508034-A (JP)
Title: 折畳み可能な自転車車輪
IPC: B60B1/02
Filed: 2012-02-24
Abstract: 本発明は折り畳むことができる自転車車輪を開示する。本発明は自転車の車輪の体積が減少されるように折り畳むことができるようにし、リムを含むタイヤ片の大きいものと小さいものが互いにずれるように折り畳まれて、体積を最小限に折り畳むことができるようにして、保管及び運送の便宜性を高めることができる。【選択図】図１
Patent JP-2016124441-A (JP)
Title: In-wheel motor drive unit
Inventor: SUGIURA SAORI
IPC: B60B35/14
Filed: 2015-01-06
Abstract: PROBLEM TO BE SOLVED: To provide an in-wheel motor drive unit having a structure in which an inclination of a wheel hub is hardly transmitted to a gear shaft of a reduction gear even if the wheel hub is inclined due to the application of a large moment load to the wheel bub.SOLUTION: An in-wheel motor drive unit comprises: a motor part A which generates a drive force; a reduction gear B composed of a plurality of gears which reduce the rotation of the motor part A, and output it; and a wheel hub C which transmits the output from the reduction gear B to a drive wheel. A drive shaft 30 for transmitting the output from the reduction gear B to the wheel hub C is arranged integrally with the hub wheel 41 or separately from the hub wheel, tooth faces 31, 32 for transmitting power are formed at an end face of the drive shaft 30 of the hub wheel 41 at the reduction gear B side, and at an axial end face of a final gear 24 constituting the reduction gear B at the wheel hub C side, the tooth face 31 of the drive shaft 30 of the hub wheel C and the tooth face 32 of the final gear 24 of the reduction gear B abutting on the tooth face 31 are engaged with each other so as to oscillate, and thus an inclination of the drive shaft 30 of the hub wheel C is not transmitted to a gear shaft of the final gear 24 of the reduction gear B.SELECTED DRAWING: Figure 1
Patent JP-2015207552-A (JP)
Title: Assembled secondary battery with overcharge discharging device
Inventor: WU PIHSIANG
IPC: H01M10/647
Filed: 2015-01-07
Abstract: PROBLEM TO BE SOLVED: To provide an assembled secondary battery with an overcharge discharging device, using a metal-made battery case, a heat dissipation plate and a cement resistor with higher power ratings, thereby having a simple structure and exhibiting a good heat dissipation effect during overcharge discharging process.SOLUTION: An assembled secondary battery with an overcharge discharging device includes: a battery case with a housing space for housing a plurality of secondary batteries; a heat dissipation plate fixed to the battery case; and an overcharge discharging device disposed in the battery case and including overcharge discharging modules which have the same quantity as the secondary batteries, and each of which is electrically connected to each of the secondary batteries, each overcharge discharging module including a balance resistor consuming electric power and fixed to the heat dissipation plate. In the assembled secondary battery, the battery case is made of metal, the heat dissipation plate is made of metal, the balance resistor is a cement resistor, and furthermore a plurality of first connectors and a plurality of second connectors removably fixed to a corresponding one of the first connectors are included.
Patent JP-2015061713-A (JP)
Title: Game machine
Inventor: YATSUGI YUZURU
IPC: A63F7/02
Filed: 2015-01-08
Abstract: PROBLEM TO BE SOLVED: To provide a game machine which detects an abnormal state of a performance movable body in an early stage to appropriately operate, without lowering a security level.SOLUTION: In a sub-control section 21 for controlling a performance movable body AMU, operation check means (SS 5, SS 6) for driving the performance movable body AMU to check that operation is made normally after resetting a CPU, clear notification means (ST 92, SE 31) for starting clear notification operation in a display device when receiving a clear command from a main control section 20, and error notification means (ST 77, SE 27) for starting error notification operation under predetermined conditions in which an error of the performance movable body AMU is detected are provided. An error notification time is set longer than the clear notification time, the error notification operation is executed in a silent state during the clear notification operation, and the error notification operation is executed in a sounding state in other operation than the clear notification operation.
Patent JP-2016123393-A (JP)
Title: Method for producing food product, and food product
Inventor: SHIMOZONO HIDETOSHI
IPC: A23G3/50
Filed: 2015-01-08
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a food product as a food product having light and soft texture compared to a similar food product such as conventional sweet potato fried dough cake, suppressed in a lipid content in the food product, and a food product.SOLUTION: Sweet potato confectionery 1 is produced by molding dough which is made by crushing sweet potatoes having a moisture content of about 40% by frying in oil, and mixing sugar therewith, in a thin circular shape followed by baking.SELECTED DRAWING: Figure 4
Patent JP-2015091988-A (JP)
Title: Adhesive agent composition and surface protective film
Inventor: NAGAKURA TAKESHI
IPC: C09J133/14
Filed: 2015-01-09
Abstract: PROBLEM TO BE SOLVED: To provide an adhesive agent composition and a surface protective film capable of satisfying all required performance of (1) a balance of adhesive power in a low speed peeling region and a high speed peeling region, (2) prevention of generating adhesive deposit, (3) excellent antistatic performance and (4) reworkability at the same time.SOLUTION: There is provided an adhesive agent composition consisting of a copolymer containing (A) a (meth)acrylic acid ester monomer with an alkyl group having C4 to C10 carbon atoms, (B) a copolymerizable monomer having a hydroxyl group and (C) a copolymerizable monomer having a carboxyl group and further containing (D) a tri- or more functional isocyanate compound, (E) a crosslink retardant, (F) crosslink catalyst, (G) antistatic agent and (H) a polyether modified siloxane compound having HLB value of 7 to 12 where (G) the antistatic agent is an ionic compound having the melting point of 30 to 80°C and being solid at a temperature of 30°C.
Patent JP-2016135052-A (JP)
Title: Threading device for cable multiple laying
Inventor: OISHI TAKESHI
IPC: H02G1/08
Filed: 2015-01-21
Abstract: PROBLEM TO BE SOLVED: To provide a threading device for cable multiple laying, capable of enabling a threading rod to easily draw a linear body while preventing the linear body from being entangled in an existing cable, even in a state in which the threading rod is entangled in the existing cable.SOLUTION: A threading device for cable multiple laying 1 to be used in constructing cables C in a multiple manner in a pipe line P comprises: a cylindrical head part 10 comprising a cable insertion hole 30 into which a cable C already constructed in the pipe line P is to be inserted; a main body part 20 that is formed in a cylindrical shape coaxially with the head part 10 and is connected to the head part 10 so as to be relatively rotatable around an axial center of the cable insertion hole 30; a threading rod connection part 15 which is provided in the head part 10 and to which a threading rod S1 passed in the pipe line P is to be connected; and a linear body connection part 23 which is provided in the main body part 20 and to which a linear body S2 to be passed in the pipe line P is to be connected.SELECTED DRAWING: Figure 1
Patent JP-2016133099-A (JP)
Title: Control device
Inventor: TAMURA HIROSHI
IPC: F02D41/10
Filed: 2015-01-22
Abstract: PROBLEM TO BE SOLVED: To provide a control device capable of suppressing generation of particulate matters by properly changing a fuel injection timing according to an operating state of an internal combustion engine.SOLUTION: An ECU 60 includes an injection timing correction portion 63 for correcting a fuel injection timing set by a reference injection timing setting portion 61, when an acceleration determination portion 62 determines that a vehicle is in an accelerated state. When a temperature in a cylinder 12 is low, the injection timing correction portion 63 corrects the fuel injection timing to be close to a termination time of an intake stroke in comparison with a case when the temperature in the cylinder 12 is high.SELECTED DRAWING: Figure 2
Patent JP-2016133487-A (JP)
Title: Control method of analysis condition of liquid chromatograph apparatus
Inventor: MANITA DAISUKE
IPC: G01N30/34
Filed: 2015-01-22
Abstract: PROBLEM TO BE SOLVED: To provide a method of performing measurement of a high reproducibility, in the measurement using a liquid chromatograph apparatus.SOLUTION: In continuously analyzing a plurality of samples, in the period from the completion of the preceding analysis to the start of equilibration of the column for the next analysis, the operation of a plunger is controlled so that the position of the plunger of a plunger pump is the same as that of the plunger at the equilibration start of the preceding column. In restarting the analysis after the analysis is temporarily stopped, the operation of the plunger is controlled so that the position of the plunger of the plunger pump at the restart is the same for each restart, the equilibration of the column is performed, and the analysis is restarted.SELECTED DRAWING: Figure 2
Patent JP-2016136799-A (JP)
Title: Protector, wire with protector and manufacturing method of wire with protector
Inventor: MATSUDA TORU
IPC: H02G3/30
Filed: 2015-01-23
Abstract: PROBLEM TO BE SOLVED: To provide a technology capable of more easily fixing a wire and a protector.SOLUTION: A protector 20 comprises a protector body part 22 and a pressing piece 30. The protector body part 22 is formed in a shape along an arrangement path of the wire and includes an arrangement surface 24 on which the wire is arranged. The pressing piece 30 is protrusively provided on the protector body part 22, formed in an elastically deformable manner in a direction away from the arrangement surface 24 and formed in such a manner that the wire can be pressed towards the arrangement surface 24 in the state where the wire is arranged on the arrangement surface 24.SELECTED DRAWING: Figure 1
Patent JP-2016142552-A (JP)
Title: Displacement detection device
Inventor: SUZUKI AKINORI
IPC: G01D5/38
Filed: 2015-01-30
Abstract: PROBLEM TO BE SOLVED: To provide a displacement amount detection device with which it is possible to detect the amount of displacement stably with high accuracy.SOLUTION: A polarization holding fiber for conveying light from a light source to a displacement detector has a length that does not equal the product of an even multiple of twice the length of a resonator times the refractive index of the resonator and a beat length obtained from a difference in propagation constant between two polarization modes that is divided by the wavelength of the light source. Or the polarization holding fiber has a length larger than the wavelength of the light source divided by the product of a coherent length and a beat length obtained from a difference in propagation constant between two polarization modes.SELECTED DRAWING: Figure 1
Patent JP-2016141247-A (JP)
Title: Regenerative control method and regenerative control system for vehicle
Inventor: TAKAHASHI TOSHITAKA
IPC: B60L7/10
Filed: 2015-02-02
Abstract: PROBLEM TO BE SOLVED: To improve fuel economy by reducing an energy loss of an oil pump motor and a high pressure accumulator in deceleration regeneration time.SOLUTION: A regenerative control method for a vehicle is provided that includes: a determination step of determining whether or not to satisfy a first condition in which an oil pump motor 13 is present in an oil pump motor number of revolutions area being undesirable in deceleration regeneration efficiency by the oil pump motor 13 or a second condition in which a high pressure accumulator 14 is present in a temperature area of the high pressure accumulator 14 causing an energy loss in deceleration regeneration time; and a sharing step of sharing deceleration regeneration on the oil pump motor 13 side and the engine 1 side by connecting both of an oil pump motor 13 side clutch 12 and an engine 1 side clutch 2 when determined as satisfying the first condition and the second condition by the determination step.SELECTED DRAWING: Figure 1
Patent JP-2016142461-A (JP)
Title: Water heater
Inventor: TANIMURA YOSHITAKA
IPC: F24H1/10
Filed: 2015-02-03
Abstract: PROBLEM TO BE SOLVED: To provide a water heater which can suppress and prevent an inner peripheral surface of an accommodation recess part of a hot water tapping temperature control tool from being exposed and contaminated, throughout hot water tapping of the water heater, even when a dimension in a cross direction of a hot water tapping operation tool is downsized and the thickness of the whole water heater is reduced, and which has good appearance.SOLUTION: A water heater 1 has a structure in which a hot water tapping temperature control tool 20 for driving and operating a water supply amount regulating valve is arranged in front of a cover body 11, and a hot water supply operation tool 30 for driving and operating a water valve is arranged in front of the cover body by being internally fitted to an accommodation recess part 25 provided backward from the front surface of the hot water tapping temperature control tool. The water heater also has restoration energizing means 35 for restoring and energizing the hot water supply operation tool frontward after performing a push-in operation backward from the front surface of the hot water tapping temperature control tool, and it is constituted so that a position in the cross direction of the hot water supply operation tool in a water valve opening holding state becomes the same as a position in the cross direction of the hot water supply operation tool in a water valve closed state.SELECTED DRAWING: Figure 3
Patent JP-2016146595-A (JP)
Title: Vibration piece manufacturing method, wafer, vibration piece, vibrator, oscillator, real time clock, electronic apparatus, and mobile object
Inventor: YAMADA AKINORI
IPC: H03H3/02
Filed: 2015-02-09
Abstract: PROBLEM TO BE SOLVED: To provide a vibration piece manufacturing method capable of manufacturing a small-sized vibration piece at excellent yield.SOLUTION: The vibration piece manufacturing method according to the invention is a manufacturing method of a vibration piece including a base unit 10 and a pair of vibration arms 20a, 20b extended from the base unit 10 along a first direction and includes: an external shape forming step in which by etching a substrate 101, the base unit 10, the vibration arms 20a, 20b, a frame section 40 formed so as to surround the base unit 10 and the vibration arms 20a, 20b, and a coupling section 50 for coupling the base unit 10 with the frame section 40 are formed in plan view; and a separation step for cutting the coupling section 50 to separate the vibration piece. In the outer shape forming step, the coupling section 50 is formed so as to be extended to the frame section 40 from only either one side face out of two side faces of the base unit 10, having front-back relation intersecting with a second direction orthogonal to the first direction in plan view.SELECTED DRAWING: Figure 5
Patent JP-2016149588-A (JP)
Title: Interpretation service provision system, interpreter selection method and interpretation service provision program
Inventor: TSUYUSAKI YURI
IPC: G06Q50/10
Filed: 2015-02-10
Abstract: PROBLEM TO BE SOLVED: To provide a technique capable of interpreting a language other than major languages with the improvement of interpretation service quality.SOLUTION: A contact center 200 includes: an interpreter selection unit 210 which acquires interpreter information related to an interpreter, on the basis of the use language of a user, carrying a mobile terminal 100, an interpretation start time and an interpretation end time transmitted from a mobile terminal 100; and a screen processing unit 220 which generates image data on the basis of the interpreter information acquired by the interpreter selection unit 210. Based on the image data transmitted from the contact center 200, the mobile terminal 100 displays on a display an interpreter information display screen including the interpreter information.SELECTED DRAWING: Figure 1
Patent JP-2016020472-A (JP)
Title: Photopolymerizable resin composition and cured product of the same, and method for producing cured product
Inventor: OKAMURA HARUYUKI
IPC: G03F7/075
Filed: 2015-02-13
Abstract: PROBLEM TO BE SOLVED: To provide a photopolymerizable resin composition which shows excellent photosensitivity even under irradiation with visible light and can increase strength of a cured product.SOLUTION: The photopolymerizable resin composition is prepared by combining a photocationically polymerizable compound (A), a polysilane (B), and a photoacid generator (C) which generates an acid by absorbing visible light. The photoacid generator (C) may be a photoacid generator which comprises a heterocycle and generates an acid by absorbing visible light having a wavelength of 405 nm, especially a photoacid generator having a thianthrene skeleton conjugated with an imide ring. The photocationically polymerizable compound (A) may have a fluorene skeleton. By a production method including a photocuring step of forming a photocured product by irradiating the composition with visible light, there is obtained a cured product having a high refractive index, and also excellent transparency, heat resistance, and water repellency. In the production method, the photocured product may further be heated at 80 to 150°C, and in the photocuring step, the composition may be heated at 80 to 150°C while being irradiated with visible light.SELECTED DRAWING: None
Patent JP-2016151182-A (JP)
Title: Exhaust emission control system for internal combustion engine, internal combustion engine and exhaust emission control method for internal combustion engine
Inventor: NAGAOKA TAIJI
IPC: B01D53/94
Filed: 2015-02-16
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control system for internal combustion engine, an internal combustion engine and an exhaust emission control method for internal combustion engine capable of making a rich control executing time for recovering NOx storage capacity of a lean NOx trap catalyst device more preferable, thereby attaining NOx reduction under an efficient NOx reduction efficiency and a less amount of fuel consumption under a short period of rich control.SOLUTION: A rich waiting time threshold [tc] is set on the basis of NOx emission amount W per unit time emitted from an internal combustion engine, a judgment that a rich control is started when an engine operation elapsing time from the rich control in respect to a lean NOx trap catalyst device 24, or an elapsing time [t] that is the engine operation elapsing time after starting the engine becomes more than the rich waiting time threshold [tc] is added and the judgement of starting this rich control is applied as a necessary condition for starting the rich control.SELECTED DRAWING: Figure 2
Patent JP-2015110271-A (JP)
Title: Structure of belt mounting body for tool holder
Inventor: KOSHIHATA MAKOTO
IPC: B25H3/00
Filed: 2015-02-18
Abstract: PROBLEM TO BE SOLVED: To provide a structure of a belt mounting body for a tool holder that can achieves various forms of holding a tool and is formed of one metal wire or one metal bar.SOLUTION: A belt mounting body is formed of a tool holding part 2, a holding-part upwardly-extending part, a support-part regulating part, and parts other than the support-part regulating part. Only this belt mounting body has the following configuration. An end of a belt rear mounting part 4 is an open end on a belt-mounting-part side. An end of a belt rear-inside support part 5 is an open end on a support-part side. The belt mounting body for a tool holder is configured to allow free formation of an effective configuration such as a tool holding part or a tool suppressing part, required for holding a tool, by extending and bending the open end on the belt-mounting-part side and the open end on the support-part side.
Patent JP-2016150582-A (JP)
Title: Image formation device
Inventor: NISHIMURA NAOKI
IPC: H04N1/405
Filed: 2015-02-19
Abstract: PROBLEM TO BE SOLVED: To suppress an unevenness in image concentration which is caused by fluctuation of exposure energy distribution on a photoreceptor that occurs after electrical fθ correction, in a configuration using a scan lens having no fθ characteristic.SOLUTION: According to image data 8 after a concentration correction process 121, a screen growth sequence of a screen process 122 is changed. To be specific, an unevenness in image concentration is suppressed by performing a screen process that decreases percentage of isolated dots in a case where the image data concentration is low, and by performing a screen process such that percentage of white isolated dots is decreased in a case where the image data concentration is high.SELECTED DRAWING: Figure 7