baber/WOPTO huggingface dataset:
Patent JP-2007180286-A (JP)
Title: Method for measuring temperature of silicon wafer
Inventor: NOMURA TOSHIYUKI
IPC: H01L21/66
Filed: 2005-12-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for measuring the temperature of an Si wafer, in which the surface temperature of the Si wafer can be measured accurately, even under the low-temperature conditions of 200°C or below without causing degradation in the quality or the characteristics of the Si wafer.  <P>SOLUTION: On the surface 1b of an Si wafer 1, opposite to the processed surface 1a, an oxide film 2 of SiO or SiO<SB>2</SB>, is formed in thickness of 0.3 μm or larger, preferable in thickness of 1.0-2.0 μm. Among the infrared light radiated from the oxide film 2, infrared light having wavelength in the range of 9-10 μm is made to enter an infrared radiation thermometer 3, and the temperature on the processed surface of the Si wafer 1 is measured from the quantity of radiation energy of that infrared light.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2006505621-A (JP)
IPC: A61P29/00
Filed: 2003-10-15
Abstract: This invention relates to methods of treatment of inflammatory bowel disease, and especially to treatment of this condition with cyclic peptidic and peptidomimetic compounds which have the ability to modulate the activity of G protein-coupled receptors. The compounds preferably act as antagonists of the C5a receptor, and are active against C5a receptors on polymorphonuclear leukocytes and macrophages. Particularly preferred compounds for use in the methods of the invention are disclosed.
Patent JP-2006518057-A (JP)
Title: 改善された計算アーキテクチャ、関連システム、並びに、方法
IPC: G06F9/445
Filed: 2003-10-31
Abstract: ピア−ベクトル・マシンはホストプロセッサとハードウェアに組み込まれたパイプライン加速器とを含む。ホストプロセッサはプログラムを実行し、該プログラムに応じてホスト・データを生成し、そしてパイプライン加速器はそのホスト・データからパイプライン・データを生成する。代替的には、パイプライン加速器はパイプライン・データを生成し、ホストプロセッサはそのパイプライン・データからホスト・データを生成する。ピア−ベクトル・マシンはプロセッサ及びパイプライン加速器の両方を含むので、しばしば、プロセッサだけ或は加速器だけを含むマシンよりもより効率的にデータを処理できる。例えば、ホストプロセッサが意思決定を実行すると共に数学的に非集中的な演算を実行し、そして加速器が非意思決定を実行すると共に数学的に集中的な演算を実行するようにピア−ベクトル・マシンを設計できる。数学的に集中的な演算を加速器にシフトすることによって、ピア−ベクトル・マシンは、しばしば、所与のクロック周波数で、プロセッサだけのマシンがデータを処理できる速度を凌ぐ速度でデータを処理できる。
Patent JP-2007505330-A (JP)
Title: 自己安定化された電気泳動で全内部反射を抑制したディスプレイ
IPC: G02F1/167
Filed: 2003-12-10
Abstract: 画像ディスプレイ（１０）は、プリズム状の微細構造（１６）をした内表面を有する透明な前面シート（１２）、および前面シート（１２）に平行に離間した背面シート（１４）を有する。電気泳動懸濁液がシート（１２，１４）の間の空隙を充填している。電気泳動媒体（２２）中に、一体的に熱力学的に安定な凝集体（５６）を形成するまで非光散乱光を吸収する粒子（２４）を懸濁した懸濁液が形成されている。懸濁液に電圧を印加すると電場が形成されて、粒子凝集体（５６）を一体的に電気泳動で前面シートの内表面の方向へ制御可能に動かして、前面シート（１２）を通過する光線の内表面での全内部反射を抑制する。
Patent JP-2005531091-A (JP)
Title: デジタルコンテンツメタデータの複合条件検索のためのエンコーディングされたマルチキーインデックス情報ストリーム構造
IPC: H04N21/435
Filed: 2003-06-27
Abstract: デジタルコンテンツメタデータの複合条件検索のためのエンコーディングされたマルチキーインデックス情報ストリーム構造を提供する。エンコーディングされたマルチキーを有するデジタルコンテンツメタデータのためのインデックス情報ストリーム構造に係り、デジタルコンテンツについてのメタデータのエンコーディングされたマルチキーを提供することによって、デジタルコンテンツについてのメタデータを受信する受信装置が多数の条件（複合条件）を充足するメタデータをより迅速でかつ効率的に検索可能にするインデックス情報ストリーム構造に関する。これにより、TVAメタデータがフラグメント単位で伝送される伝送ストリーム環境で、TVAメタデータフラグメントに対するさらに効率的な検索及び接近機能を提供するためにエンコーディングされたマルチキーインデクシング接近方法を提示する。
Patent JP-2007534340-A (JP)
Title: 内部アクティブ磁場キャンセレーションを有する磁気遮蔽ルーム及びその使用
IPC: G01R33/025
Filed: 2003-07-29
Abstract: 装置（５０）は、当該囲い（２４）の内側と外側とを規定する壁部（２６）を有する囲い２４を備えている。透磁性が高い材料の層（５２）は、層（５４）よりも囲い（２４）の内側近くに位置している。背景磁場の磁力計（５６）は、囲い（２４）内に位置している。電気コイル構造（６２）は、特定の背景磁場の最も完全な打ち消しをもたらすように製作されている。
Patent JP-2007521240-A (JP)
Title: ジヒドロネペタラクトンを含んでなる昆虫忌避組成物
IPC: A61K31/35
Filed: 2003-09-18
Abstract: ジヒドロネペタラクトン、ネペタ・カタリアのようなキャットニップ（ネペタ種（Ｎｅｐｅｔａ  ｓｐｐ．））の精油の副天然成分が有効な昆虫忌避化合物として特定された。ジヒドロネペタラクトンの合成は、ネペタラクトン、キャットニップ精油の主成分の水素化によって達成されてもよい。芳香性をも有するこの化合物は、その昆虫忌避性のために商業的に使用され得る。
Patent JP-2006519461-A (JP)
Title: リチウムイオン電池
IPC: H01M50/591
Filed: 2004-03-31
Abstract: 本発明は、電池芯体、電池保護回路およびカバーを含んでいる、ある種の充電式電池構造を開示する。カバーは、ゴムまたはプラスチックから射出成形することができる。カバーの２つの端部のそれぞれには開口があり、電池芯体の上面には１つ以上の開口があり、カバーにおける開口に対応している。２つのねじがあり、それぞれは、カバーの開口を通して電池芯体の上面にあるねじ穴の中に挿入され、それによって、カバーと電池芯体とを連結する。従来技術に比較すると、本発明は、製造コストをかなり削減し、かつ、製造プロセスを簡単にすることができる。
Patent JP-2007182797-A (JP)
Title: Control device for single cylinder four cycle engine
Inventor: OKOCHI YASUHIRO
IPC: F02D45/00
Filed: 2006-01-06
Abstract: <P>PROBLEM TO BE SOLVED: To provide a control device for a single cylinder four cycle engine capable of executing appropriate operation control at a early stage by enabling stroke discrimination during one rotation of a crank shaft.  <P>SOLUTION: Rotation speed during one rotation of the crank shaft is not constant in a single cylinder four cycle engine. Attention is paid to that rotation durations T30 for rotation of predetermined crank angles are different among strokes, especially to that tendencies of change of the rotation duration T30 are different. Namely, rotation durations T30 at crank angle numbers Cn=8, 9 are acquired (step S104, S107), and time difference ΔT30 thereof is calculated (step S109). Then, strokes are discriminated (step S111, S114) by comparing the time difference ΔT30 with predetermined stroke criteria K1, K2 (step S110, S113).  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2007186023-A (JP)
Title: Bumper structure, and method for manufacturing the same
Inventor: SHIBUYA AKIHIRO
IPC: B60R19/04
Filed: 2006-01-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide a bumper structure, capable of improving appearance quality of a vehicle.  <P>SOLUTION: The bumper structure is provided with a cover member 3, installed on a bumper 2, and comprising a continuous design surface S2 with the outer surface of the bumper 2. The bumper 2 has engagement holes 7, and the cover member 3 has engagement pieces 10. Each engagement piece 10 is provided with a first engagement projection 11 formed on the tip side to be inserted into the engagement hole 7 for locking the cover member 3 to the bumper 2, and a second engagement projection 12 formed on the base end side of the engagement piece 10 over the first engagement projection 11 to be inserted into the engagement hole 7 for locking the cover member 3 to the bumper 2. As the second engagement projection 12 is inserted into the engagement hole 7, it is installed in such a way that the design surface S2 of the cover member 3 is continuous with the outer surface of the bumper 2.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2007187034-A (JP)
Title: Hermetic compressor
Inventor: WATABE KIWAMU
IPC: F04B39/02
Filed: 2006-01-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide an efficient hermetic compressor preventing disturbance of rotation of a ball caused by viscous resistance generated by residing oil due to residence of oil around a thrust ball bearing provided in a rotor to generate viscous resistance.  <P>SOLUTION: A hermetic compressor capable of providing high input reduction effect without generating viscous resistance is constructed since discharge of oil 103 into a hermetic vessel 101 is improved by positioning a lower end position of a ball part of the thrust ball bearing 131 lower than a lower end of the rotor 113 and oil is prevented from accumulating around the thrust ball bearing 131.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2007185680-A (JP)
Title: Structure for holding rod shape component
Inventor: ASAOKA TAKURO
IPC: B21D39/00
Filed: 2006-01-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide a structure which can accurately and simply holding a rod shape component.  <P>SOLUTION: An assembling stand 69 is provided with an opening portion 69a, a supporting hole 69b, and a tapered surface 69c. When an electrode rod 6 is inserted into the opening portion 69a, a rod shape leading portion 13 is inserted into the supporting hole 69b, and a radially swelled welding ball 14 is brought into contact with the tapered surface 69c. As a result, the electrode rod 6 is held in the assembling stand 69 in the state that the electrode rod 6 has been simply positioned in the axial and lateral directions. When the electrode rod 6 is inserted into the supporting hole 69b and is taken out from the supporting hole 69b, an air pump 80 of the assembling stand is operated and assists the movement of the electrode rod 6 by air flow. Further, when the electrode rod 6 is taken out from the supporting hole, a lifting ball 83 is lifted by pneumatic pressure and pushes up the electrode rod 6.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2007189906-A (JP)
Title: Peptidase and method of using the same
Inventor: ODA KEIICHI
IPC: C12N1/20
Filed: 2006-01-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide a required new method for decomposing or reducing volume in a good efficiency in the case that jelly fishes invade a water intake of a plant utilizing sea water such as a power generating plant, etc., and fishery facilities, and become a large amount of hardly treatable waste materials, and also a required method for exterminating the jelly fishes, enabling the prevention of the invasion by the jelly fish.  <P>SOLUTION: This peptidase and the method for using the same aiming at the decomposition or reduction of volume of the jelly fishes becoming hardly treatable waste materials is provided by treating them with the peptidase classified to EC 3.4, preferably the peptidase produced by Bacillus sp. 97001 strain or its similar enzyme so as to make the final treatment of the jelly fishes becoming the hardly treatable waste materials easy.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2006233191-A (JP)
Title: Coating composition, optical film, antireflection film, polarizing plate and image display device using them
Inventor: SUZUKI TAKATO
IPC: G02B1/11
Filed: 2006-01-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide a coating composition containing a surfactant (preferably a fluoro-aliphatic group-containing copolymer) which can prevent uneven drying and wind, and to provide especially the coating composition containing a surfactant which combines the reduced transfer of a fluorine-containing surfactant.  <P>SOLUTION: The coating composition contains the fluoro-aliphatic group-containing copolymer comprising a recurring unit A which corresponds to a fluoroaliphatic group-containing monomer and a recurring unit B which corresponds to at least one type of a monomer, wherein the glass transition point of a polymer obtained by polymerizing only the repeating unit B is ≥300 K.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2007190970-A (JP)
Title: In-wheel motor system
Inventor: IWANO HARUO
IPC: B60K7/00
Filed: 2006-01-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide an in-wheel motor system, securing a large stroke width even when an inner rotor type motor is used, stably operated taking the mass of a motor as the mass of a dynamic damper, and reducing the weight.  <P>SOLUTION: In mounting an in-wheel motor on the vehicle unsprung part in a floating manner, a dynamic vibration absorber 20 including a motor mounting member 21 fitted to the side surface of a motor case 10a of an electric motor 10, a knuckle fitting member 22 fitted to a knuckle 5, a spring member 23 connecting the motor mounting member 21 and the knuckle fitting member 22, two guide members 24, 24 for guiding the operating direction of the spring member 23, and a damper 25 disposed parallel to the guide members 24, 24 is disposed on the side surface of the electric motor 10, and the electric motor 10 and the knuckle 5 are connected to each other.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2007191758-A (JP)
Title: Method for reforming resin base material
Inventor: AZUMA HIROZUMI
IPC: C23C14/28
Filed: 2006-01-19
Abstract: <P>PROBLEM TO BE SOLVED: To provide a reforming method for reforming the surface of a resin base material while moving the resin base material at a rate of ≥300 mm/min under the atmospheric pressure.  <P>SOLUTION: In the method for reforming the surface of a resin material, the surface of a target 13 is irradiated with laser light L to generate vacuum ultraviolet light and scattering particles (a), and the scattering particles (a) are stuck to the surface of the resin base material 15 while irradiating the same with the vacuum ultraviolet light. While the surface of the target 13 is irradiated with the laser light L in such a manner that the shape of the irradiated light formed on the surface of the target 13 is made into the almost elliptical one in which the width in the major axis direction reaches 1.5 to 10 times the width in the minor axis direction, the resin base material 15 is moved in such a manner that the opening angle between the direction vertical to the major axis direction in the plane parallel to the surface of the target 13 and the moving direction of the resin base material 15 becomes ≤10°, and the scattering particles (a) are stuck to the surface of the resin base material 15 in a shielding gas atmosphere having an oxygen content of ≤8 vol.% while irradiating the surface of the resin base material 15 with the vacuum ultraviolet light.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2007193616-A (JP)
Title: Album creation system, album creation method and album creation program
Inventor: SAWANO TETSUYA
IPC: G06Q30/06
Filed: 2006-01-19
Abstract: <P>PROBLEM TO BE SOLVED: To reduce communication traffic between an album orderer terminal and an album creation device by selecting an image used for album creation, and transmitting only the selected image to the album creation device.  <P>SOLUTION: This album creation system has: an image condition storage part storing a condition of image contents of the necessary image associatively to the kind of an album; an album selection control part making the kind of the album be selected; an image selection program generation part generating an image selection program for selecting a candidate of the image disposed in the album by use of the condition of the image contents stored by the image condition storage part associatively to the kind of the album, and providing it to a user terminal; a candidate image acquisition part making the candidate of the image to be disposed be selected, making it be transmitted, and acquiring the candidate of the image; an image selection part selecting the image to be disposed; and an album creation part creating the album.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2007191767-A (JP)
Title: Electron-beam evaporation source, vapor deposition apparatus, vapor deposition method and optical film
Inventor: SUGAWARA TOSHIAKI
IPC: C23C14/06
Filed: 2006-01-20
Abstract: <P>PROBLEM TO BE SOLVED: To provide an electron-beam evaporation source which is suitable for an evaporation material that is easily decomposed when irradiated with an electron beam; a vapor deposition apparatus; a vapor deposition method; and an optical film which is formed thereby.  <P>SOLUTION: The electron-beam evaporation source is provided with a material-accommodating section 12 which accommodates the evaporation material 12a that is easily decomposed when irradiated with the electron beam, and an electron gun; and melts and vaporizes the evaporation material 12a in a vacuum, by irradiating the evaporation material 12a in the material-accommodating section 12 with the electron beam EB emitted from the electron gun. The material-accommodating section 12 is electrically insulated from the ground, and the evaporation material 12a in the material-accommodating section 12 is negatively charged when being irradiated with the electron beam EB.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2007190519-A (JP)
Title: Coating apparatus, coating method, method for producing endless belt, and intermediate transfer belt
Inventor: ICHIZAWA NOBUYUKI
IPC: B05D1/18
Filed: 2006-01-20
Abstract: <P>PROBLEM TO BE SOLVED: To provide a coating method and a coating apparatus for forming a coating of a resin solution for coating formation to obtain an endless belt at a high productivity which shows little change in electric resistance with the lapse of time, to provide a method for producing an endless belt using the above-mentioned coating method, and to provide an intermediate transfer belt which shows little change in electric resistance with the lapse of time.  <P>SOLUTION: At the time of applying a coating solution 18 (a conductive substance-containing resin solution for coating formation) to a core body 10, voltage is applied in a manner that a ring-like body 20 brought into contact with a coating 28 of the coating solution 18 is at a positive potential relatively to the core body 10. That is, a positive potential difference is applied to the surface of the coating 28 in relation to the core body 10.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2007197507-A (JP)
Title: Catalyst composition for manufacturing polyurethane resin and manufacturing process of non-foaming polyurethane
Inventor: HORIE HARUYUKI
IPC: C08G18/22
Filed: 2006-01-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide a catalyst composition for manufacturing a non-foaming polyurethane resin which has a low toxicity and exhibits excellent catalytic activity at ordinary temperature.  <P>SOLUTION: The catalyst composition comprises: (a) a metal β-diketonate complex expressed by general formula (1) M(L)<SB>4</SB>[in general formula (1), M is Ti or Zr; L's are each independently a ligand expressed by general formula (2) [in general formula (2), R<SB>1</SB>and R<SB>3</SB>are each independently R<SB>4</SB>or OR<SB>4</SB>; R<SB>4</SB>is a 1-12C alkyl group, cycloalkyl group or aryl group; and R<SB>2</SB>is a 1-5C alkyl group, cycloalkyl group or aryl group]]; and (b) an imidazole compound. The catalyst composition is used for manufacturing the polyurethane resin.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2006233330-A (JP)
Title: Abrasion-resistant member and manufacturing method therefor
Inventor: KURIBAYASHI NOBUHIRO
IPC: B22F5/00
Filed: 2006-01-24
Abstract: <P>PROBLEM TO BE SOLVED: To greatly reduce a process cost by manufacturing an abrasion-resistant member into a near net shape.  <P>SOLUTION: This abrasion-resistant member is a sintered abrasion-resistant member which can be finished into the near net shape when having been sintered; and comprises a carbide phase of 80 wt% or more, a bond phase of 1% to 20 wt% and phosphorus of 0.01 to 2.0 wt%.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006206593-A (JP)
Title: Method for producing 2,4'-mdi
Inventor: SCHAAL HANS-PETER
IPC: C07C263/20
Filed: 2006-01-30
Abstract: <P>PROBLEM TO BE SOLVED: To provide 2,4'-MDI containing minute amounts of 2,2'-MDI.  <P>SOLUTION: The method comprises the following process: An isomeric starting mixture of diisocyanato-diphenylmethanes comprising 2,2'-diisocyanato-diphenylmethane, 2,4'-diisocyanato-diphenylmethane and 4,4-diisocyanato-diphenylmethane is distilled in a separating wall column in at least one step to produce at least one mixture comprising 85-99 mass% of 2,4'-diisocyanato-diphenylmethane, up to 15 mass% of 4,4'-diisocyanato-diphenylmethane and 0.2 mass% or less of 2,2'-diisocyanato-diphenylmethane.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2007209069-A (JP)
Title: Linear-motor single-axis robot
Inventor: KAMOGAWA MAKOTO
IPC: H02K41/02
Filed: 2006-01-31
Abstract: <P>PROBLEM TO BE SOLVED: To provide a linear-motor single-axis robot wherein a certain clearance is appropriately ensured between a magnet shaft and a coil without interfering with smooth movement of a movable member.  <P>SOLUTION: The linear-motor single-axis robot includes a robot body 1 having the magnet shaft 4 with permanent magnets 4a arranged thereon; coils 23 into which the shaft 4 can be fitted loosely; and the movable member 2 movably supported in a direction substantially parallel with the direction of the axis of the shaft 4. The robot body 1 of the linear-motor single-axis robot incorporates a shaft correcting member 35 constructed of a magnetic material or a magnet and so constructed as to apply force (shaft correcting force) in a direction orthogonal to the direction of the axis of the shaft 4 by interaction between it and the permanent magnets 4a.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2006282654-A (JP)
Title: Antioxidant
Inventor: ESUMI KUNIO
IPC: A61P27/12
Filed: 2006-02-01
Abstract: <P>PROBLEM TO BE SOLVED: To provide an antioxidant having high active oxygen removability and excellent in stability.  <P>SOLUTION: The antioxidant contains a colloid of an alloy composed of two or more kinds of noble metals as an active ingredient, wherein the colloid of the alloy of the noble metals is obtained by reducing two or more kinds of noble metal salts by one, two, or more kinds of reducing agents selected from citric acid or its salt, ascorbic acid or its derivative, sodium borohydride, and hydrazine.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2007214772-A (JP)
Title: Image signal processing apparatus
Inventor: INAO KAZUYA
IPC: H04N5/361
Filed: 2006-02-08
Abstract: <P>PROBLEM TO BE SOLVED: To provide an imaging apparatus employing a region-divided reading type imaging element wherein the image quality of a composite image can be enhanced.  <P>SOLUTION: An image signal processing apparatus improves the image quality of a composite image by including: a signal difference correction means for correcting signal differences of image signals outputted from a plurality of output terminals of the imaging element; and a black level correction means for correcting a black level for output signals from the signal difference correction means.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2007214340-A (JP)
Title: Metallic ultra-fine particle using bonding material and semiconductor device using the same
Inventor: MORITA TOSHIAKI
IPC: B23K35/14
Filed: 2006-02-09
Abstract: <P>PROBLEM TO BE SOLVED: To provide a bonding material structure suitable for securing metal bonds, when a substrate is constituted of a metal, and the structure of a semiconductor device employing an ultra fine metal particle bonding material, in the bonding material, provided with a particle layer consisting of ultra-fine metal particles on the surface of the substrate.  <P>SOLUTION: The bonding material is provided with a grain layer 302, including the ultra-fine metal particles of grain size of 1-100 nm on the surface of the metal substrate 301. At least the surface of the substrate is constituted of a material, in which the ultra-fine metal particles are connected to a metal. Further, in the semiconductor device in which the electrode 106 of semiconductor element 101 and a wiring 201 for extracting the electrical signal of the semiconductor element to outside are connected by a connecting material employing the ultra fine metal particles, a metallization layer of a material connected to the ultra-fine particles of metal through metallic connection is applied on the surface of electronic components, opposite to the connecting material employing the ultra-fine particles of metal, in the semiconductor device connected by the connecting material that employs the ultra-fine particles of metal.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2007211181-A (JP)
Title: Ink composition, method for inkjet recording, method for manufacturing planographic printing plate, and planograhic printing plate
Inventor: NAKAMURA IPPEI
IPC: C09D11/00
Filed: 2006-02-10
Abstract: <P>PROBLEM TO BE SOLVED: To provide an ink composition which hardens in high sensitivity at the irradiation of active radiation rays, and can form a high-definition image wherein an image obtained by ink hardening has sufficient flexibility, and to provide a method for inkjet recording using it, a planographic printing plate having excellent plate life in which a high-definition image produced by the ink composition can be formed, and a method for manufacturing the plate.  <P>SOLUTION: The ink composition comprises (A) a polymerization initiator, (B) a polymerizable compound, (C) a coloring agent, and (D) from 3 mass% to 20 mass% of at least one selected from the group consisting of compounds expressed with general formula (I) and general formula (II), based on the mass of all components.  <P>COPYRIGHT: (C)2007,JPO&INPIT