baber/WOPTO huggingface dataset:
Patent JP-2011504209-A (JP)
Title: 天然植物を模倣する繊維、その製造方法及びその繊維で作られた織物
IPC: D03D15/50
Filed: 2007-11-27
Abstract: 【課題】本発明は天然植物を模倣する繊維、その製造方法及びその繊維で作られた織物を提供する。 【解決手段】複数の第１ポリオレフィ類の欠片、所定量の熱可塑性エラストマー（ＴＰＥ）及び複数の内部に天然植物のエキス精油が包まれるマイクロカプセルを使用し、二軸スクリュー混練造粒工程によって前記複数の第１ポリオレフィ類の欠片、前記所定量の熱可塑性エラストマー（ＴＰＥ）及び前記複数のマイクロカプセルをロールプレス、混練して複数の母粒を作った後に、前記複数の母粒と複数の第２ポリオレフィ類の欠片を使用し、前記第２ポリオレフィ類と前記第１ポリオレフィ類とは同じ材料であり、前記複数の母粒と前記複数の第２ポリオレフィ類の欠片を合成材料となるように溶融、混合することによって前記複数のマイクロカプセルの最終的な含有量を前記の合成材料の１〜３２ｗｔ％となるようにし、前記合成材料をスピニング、冷卻、熱延伸、加熱定型することによって繊維を作り、繊維又はその織物に持久性ある天然植物の芳香の効果を付与させる。 【選択図】なし
Patent JP-2011503590-A (JP)
Title: 光子放射の周辺線量当量を測定するための局所線量計および読取方法
IPC: G01T1/02
Filed: 2008-11-07
Abstract: 本発明は、散乱体と、好ましくはＬｉＦチップである少なくとも１つの検出素子ペアを備えた検出カードとを具備する、光子放射の周辺線量当量（Ｈ ＊ （１０））を測定するための局所線量計に関し、その際、両方の検出素子のうち第１の検出素子は、光子放射をスペクトル的にフィルタ処理するために２つのフィルタフィルムの間に位置決めされており、両方の検出素子のうち第２の検出素子は、第１の検出素子のようにそのようなフィルタフィルムの間に配置されてはおらず、したがって第２の検出素子上に当たる光子放射は、第１の検出素子上に当たるスペクトル的にフィルタ処理された光子放射とは異なるスペクトル分布を有する。特に３０ｋｅＶ未満の範囲内、場合によっては１．３ＭｅＶ超の範囲内で最適化された応答挙動を達成するために、両方の測定値が加重して加算される。
Patent JP-2011507082-A (JP)
Title: サービスをコンテンツフローにシームレスに導入するための方法およびデバイス
IPC: G06F13/00
Filed: 2008-11-24
Abstract: クライアント２１００とサーバ２１０４との間のメッセージフローにおいて、サービス呼出しを自動化するための方法が、前記クライアント２１００によるコンテンツを含むメッセージ２３００を生成するステップ、前記メッセージを前記クライアント２１００によりネットワーク２１０３を介して前記サーバ２１０４に送信するステップを含み、前記方法は、ネットワーク２１０３内のメッセージインターセプトデバイス２１０５によって前記メッセージ２３００をインターセプトするステップと、前記メッセージの前記コンテンツ部分に対するさらなる実行のためのサービスが必要であるかどうかを、前記メッセージインターセプトデバイス２１０５によって判定するステップとをさらに含む。サービスが必要である場合に、前記方法は、前記メッセージの前記コンテンツ部分に対する少なくとも１つのサービスのさらなる実行のために少なくとも１つのサービスエンジンを選択するさらなるステップを含む。
Patent JP-2011511917-A (JP)
Title: モジュラー移動ロボット
IPC: F41A23/40
Filed: 2008-12-11
Abstract: そこに収容された電源を含むシャーシを有するモジュラー移動ロボット。右および左キャタピラモジュールは、それぞれロボットシャーシに取り外し可能に連結される。各キャタピラモジュールは、側板と、側板に対して回転可能な少なくともひとつの駆動輪と、駆動輪を駆動するためのモーターと、側板に対して回転可能な少なくともひとつのアイドラーと、駆動輪、側板、およびアイドラーの周囲に延在するキャタピラとを含む。独自の砲塔駆動サブシステムを有する砲塔アセンブリは、簡易脱着機構を介してロボットシャーシに取り外し可能に連結される。
Patent JP-2011508122-A (JP)
Title: 少量装薬発破方法および装置
IPC: E21B7/02
Filed: 2008-12-17
Abstract: 本発明は、少量装薬発破方法、およびそれに用いる削岩ユニットに関するものである。削岩ユニット（４）の削岩機（６）によって、まず発破孔（１６）を掘削すべき材料（１７）に対して穿孔し、その後、推進薬を有する１つ以上のカートリッジ（Ｐ）を穿孔工具（７）を介して発破孔の底部へと供給する。削岩ユニットは、削岩機とは別個のカートリッジ供給部（１４）を含み、そこからカートリッジを穿孔工具における長手方向の供給路（１５）へ供給することができる。 【選択図】図３
Patent JP-2011508983-A (JP)
Title: 半導体のマイクロパッド形成
IPC: H01L21/60
Filed: 2008-12-16
Abstract: 第１の半導体素子（１２，５２，７４）の外部コンタクト（１４，５４，７８）に達するマイクロパッド（３０，７０，４２）を形成する方法である。銅から成るスタッド（２０，２４，６６，８８，８２）を外部コンタクトの上に形成する。スタッドは、第１の半導体素子の表面上を延在する。銅から成るスタッドを錫溶液に浸漬する。錫（２８）で、スタッドの銅の少なくとも９５パーセントを、好ましくは９９パーセント超を置換する。結果として、５重量パーセント未満の銅を含む錫マイクロパッドが得られる。マイクロパッドがほぼ純粋な錫であるので、金属間化合物ボンドは、第１の半導体素子のマイクロパッドがボンディングされない状態が続いている間は形成されない。より小さいマイクロパッド寸法が、金属間化合物ボンドが形成されないので得られる。第１の半導体素子を、当該第１の半導体素子に覆い被さる第２の半導体素子にボンディングする場合、ボンド寸法によって、積層チップの高さが極めて高くなることはない。
Patent JP-2011509286-A (JP)
Title: 精神神経系障害の治療のための、医薬組成物並びにｄ−アミノ酸及び抗酸化物を利用する方法
IPC: A61P25/24
Filed: 2009-01-08
Abstract: 本発明は、ビタミンＥ、ビタミンＣ、グルタチオンまたはこの前駆体からなる群から選択される抗酸化物と組合せて、Ｄ−アミノ酸を含んでなる経口投与のための医薬組成物を提供する。
Patent JP-2011515651-A (JP)
IPC: H01M10/48
Filed: 2009-01-12
Abstract: This invention is related to a method and an apparatus for choosing SOCi (State Of Charge based on current) or SOCv (State Of Charge based on voltage) as the SOC (State Of Charge) of a battery depending on a condition in a battery management system by using an equivalent circuit model. In this invention, a method for measuring SOC of a battery in a battery management system is  characterized by  comprising the steps of: obtaining voltage data and temperature by measuring the current, voltage and temperature of a battery; calculating SOCi by accumulating the current data; calculating open circuit voltage by using an equivalent circuit model which simply presents the current data, the voltage data and the battery through an electric circuit; calculating SOCv by using the temperature data and the open circuit voltage; and choosing at least one of the SOCi and the SOCv as SOC of the battery by using the SOCi and the SOCv based on the judgment on the current state of a vehicle for a certain time interval.
Patent JP-2011514035-A (JP)
Title: 無線通信システムにおける電力ヘッドルーム管理
IPC: H04W72/04
Filed: 2009-01-23
Abstract: 無線通信システムにおいて電力ヘッドルーム管理を容易にするシステムおよび方法が記載される。本明細書で説明するように、システム周波数帯域外のスプリアス発射および／または過度の干渉を最小にするために、例えば、許可された周波数帯域のうちの１または複数の端部近傍の位置を、実質的に高い電力バックオフ・パラメータに関連付けることによって、システム周波数帯域に沿った位置と、対応する電力バックオフ・パラメータとの間の予め定めた関係が用いられる。本明細書でさらに記載されるように、予め定められた関係が、基地局およびモバイル端末に演繹的に知られうる。
Patent JP-2011510770-A (JP)
Title: 哺乳瓶
IPC: A61J11/04
Filed: 2009-02-06
Abstract: 本発明は、可撓性プラスチックからなる飲用乳首と、可撓性プラスチックより強度の高いプラスチックからなるとともに、射出成形により飲用乳首と一体的に接続されるボトルと、ボトルから飲用乳首を通り飲用開口部まで延伸する補強糸とを有する哺乳瓶に関する。 【選択図】図１
Patent JP-2011519347-A (JP)
Title: 安定化されたタンパク質組成物
IPC: A61K39/395
Filed: 2009-02-05
Abstract: 容器内にある、RANKLに対する特異的結合剤、TNFに対する特異的結合剤、および／またはIL-1R1に対する特異的結合剤の、安定化された組成物を提供する。そのような組成物の作製および使用の方法も提供する。
Patent JP-2011142629-A (JP)
Title: Sliding mechanism and portable electronic device using the same
Inventor: WU KUN-TSAN
IPC: H04M1/02
Filed: 2011-01-05
Abstract: <P>PROBLEM TO BE SOLVED: To provide a sliding mechanism and a portable electronic device using the same.  <P>SOLUTION: The sliding mechanism comprises: a retaining board; a sliding board; a first magnetic element and a second magnetic element which are installed on the sliding board while being separated from each other; connecting members both the ends of which are rotatably connected to the retaining board and the sliding board, respectively; and a third magnetic element installed in the connecting member. When the sliding board slides while withstanding an attraction force between the first magnetic element and the third magnetic element by the rotation of the connecting member, the sliding board obliquely rises with respect to the retaining board, and on the other hand, the attraction force between the second magnetic element and the third magnetic element becomes large. When the attraction force between the second magnetic element and the third magnetic element is larger than the attraction force between the first magnetic element and the third magnetic element, the sliding board succeedingly and automatically slides and rises obliquely relatively to the retaining board.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011070229-A (JP)
Title: Developing device and image forming apparatus
Inventor: FUJIMORI SHINICHIRO
IPC: G03G15/08
Filed: 2011-01-07
Abstract: <P>PROBLEM TO BE SOLVED: To provide a developing device configured to prevent suspended toner produced on the side opposite to an air inlet across a developing area from scattering outside the developing device, and to provide an image forming apparatus.  <P>SOLUTION: The image forming apparatus 1 includes: a developer carrying body 20 which is disposed so that the circumferential surface thereof may face an image holding body 10 which holds an electrostatic image on the surface thereof, and configured to hold the developer on the circumferential surface thereof, carry the developer toward the developing area P where the surface of the image holding body faces the circumferential surface thereof, with the rotation thereof in the circumferential direction, and include a groove 22 integrally formed in the circumferential surface while extending in the circumferential direction thereof; and the air inlet 18a disposed in one of areas R and Q on the upstream and downstream sides in the rotation in the circumferential direction, which are across the developing area P and adjacent to the developing area.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2012143780-A (JP)
Title: Mold surface processing method
Inventor: FURUKAWA YUICHI
IPC: C23C16/27
Filed: 2011-01-11
Abstract: PROBLEM TO BE SOLVED: To provide a technique of improving durability of a carbon film formed on a mold surface by selectively increasing only the thickness of a nitride layer without increasing the thicknesses of a compound layer and the carbon film.SOLUTION: A mold surface processing method includes a first step, a second step and a third step in this order. The first step sequentially includes: a nanocarbon film forming step of forming a nanocarbon film containing at least one type of nanocarbons selected from the group consisting of a carbon nanocoil, a carbon nanotube and a carbon nanofilament by applying heat treatment to a mold with an organic gas under conditions where the nitride layer of a mold material is formed; a fullerene applying step of applying fullerenes on a surface of the nanocarbon film; and a burning step of heating the mold on which the carbon film is formed to a temperature of 400°C or higher. The second step includes a step of performing shot blast processing on the surface of the carbon film formed by the first step. The third step sequentially performs the nanocarbon film forming step, the fullerene applying step and the burning step on the mold subject to the second step.
Patent JP-2012145538-A (JP)
Title: Service life evaluation method of metal material
Inventor: SASAKI KOJI
IPC: G01N17/00
Filed: 2011-01-14
Abstract: PROBLEM TO BE SOLVED: To provide a service life evaluation method of a metal material for simply evaluating the service life of the metal material used under a high temperature environment.SOLUTION: The evaluation method includes a step of calculating an LMP for each piece of image data based on high temperature long time heating test data composed of pieces of image data of metal structures under various use temperatures and use time periods; a step of specifying a piece of image data most similar to the metal structures of an actual device among the pieces of image data contained in the high temperature long time heating test data, and estimating the LMP calculated from the specified image data as the LMP of the actual device; and a step of calculating a service life consumption rate from a creep master curve and the estimated LMP.
Patent JP-2012146260-A (JP)
Title: Clock dynamic switching control device
Inventor: WATANABE ISAMU
IPC: G06F1/04
Filed: 2011-01-14
Abstract: PROBLEM TO BE SOLVED: To provide a clock dynamic switching control device that is capable of checking a standby system of a clock supply unit by generating pseudo failure of a clock in operating an information processing system and preventing an output stop of the clock due to failure of a clock failure detection circuit in a DCS.SOLUTION: Clock supply control means 31 controls to stop/start output clocks #1 and #2 of clock generating devices 10 and 11 in sequence at a time interval. Clock failure alarm mask means 32 masks a clock failure detection signal 211 which is reported from a clock selection/distribution unit 2 while a clock output of an active-system clock generating device is stopped. When the clock failure detection signal 211 does not assert while the clock output of the active-system clock generating device is stopped, a clock dynamic switching control device reports externally as a clock failure detection circuit alarm signal 332.
Patent JP-2012151591-A (JP)
Title: Television camera device transmission cable status display method
Inventor: FURUHATA KOJI
IPC: H04N5/222
Filed: 2011-01-18
Abstract: PROBLEM TO BE SOLVED: To provide a television camera device transmission cable status display method which, when a camera head unit and a CCU are connected with transmission cable, automatically recognizes the cable length of a connected transmission cable to display the transmission cable status.SOLUTION: When power is turned on, the cable length of a transmission cable and an attenuation therein at the time of commercial run are calculated from STBY use transmit data with a lower transmission rate than a transmission rate at the time of commercial run which is transmitted from a CCU to a camera head unit and returned transmit data of the transmit data sent from the camera head unit. Then the diameter of the transmission cable is calculated from the calculated cable length and attenuation at the time of commercial run, and a maximum permissible cable length is calculated from the calculated transmission cable diameter and attenuation at the time of commercial run, the calculated commercial run frequency attenuation, transmission cable diameter and maximum permissible cable length being displayed on one display screen.
Patent JP-2012151960-A (JP)
Title: Power conversion device
Inventor: OGAWA TAKURO
IPC: H02P27/06
Filed: 2011-01-18
Abstract: PROBLEM TO BE SOLVED: To provide a power conversion device with a small capacitance capacitor which prevents an overvoltage owing to a regenerative operation of a motor.SOLUTION: The power conversion device includes a control section (40) for pulsating an output torque of the motor (5) such that pulsating components of an output voltage of an AC power supply (6) are superimposed on the output torque of the motor (5). The control section (40) includes a limiting section (60) for limiting the output torque of the motor (5) such that the output torque of the motor (5) is not a minus.
Patent JP-2012148513-A (JP)
Title: Heat-sensitive recording material and method for manufacturing the same
Inventor: MASUDA TAKAO
IPC: B41M5/28
Filed: 2011-01-20
Abstract: PROBLEM TO BE SOLVED: To provide a heat-sensitive recording material excellent in recording quality in a halftone region, thermal response, and uniformity of color optical density, and to provide a method for manufacturing the same.SOLUTION: In the heat-sensitive recording material and the method for manufacturing the same, the heat-sensitive recording material is made by sequentially stacking an intermediate layer and a heat-sensitive recording layer that develops color due to heat, on a support body. The intermediate layer contains a hollow resin having a shape of bellows, and smoothness of a coloring surface side which is measured by Parker Print Surf is 1.0 μm or less. The intermediate layer is formed by coating the support body with a coating liquid containing thermally expandable resin particles, then undergoing thermal expansion, and thereafter performing calendar processing.
Patent JP-2011087334-A (JP)
Title: Heterogeneous interconnection architecture for programmable logic device
Inventor: BETZ VAUGHN
IPC: H03K17/693
Filed: 2011-01-21
Abstract: <P>PROBLEM TO BE SOLVED: To provide an architecture of a programmable logic device that is optimized in terms of one or more selected operational parameters while minimizing impact on the remaining parameter.  <P>SOLUTION: The programmable logic device is composed of one or more function blocks and a plurality of groups of interconnection resources, each selected type of group is connected to one or more function blocks through a program, at least a first number of one type of interconnection resource is optimized for a first operational parameter of the programmable logic device, and a second number of the same type of interconnection resources is optimized for a second operational parameter. For example, the operational parameter may include speed, area, electric power, reliability, and a degree of freedom.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2012152804-A (JP)
Title: Method for manufacturing seamless steel pipe in high alloy or stainless steel
Inventor: HIRANO SHINICHIRO
IPC: B21C23/08
Filed: 2011-01-27
Abstract: PROBLEM TO BE SOLVED: To reduce deterioration in yield of a round billet during boring.SOLUTION: In the method for manufacturing a seamless steel pipe, a bloom 1 of high alloy or stainless steel containing 20 mass% or more of Ni and an austenite single phase structure is rolled or forged to obtain a round billet 3. A defect existing at a center part of the round billet 3 is bored, then a hot extrusion method is conducted. When the length of a long side of the bloom 1 is A (mm) and the length of a short side is B (mm), and the flatness ratio (A/B) of the bloom is 1.4 or more and 2.4 or less and the radius of the round billet 3 is R (mm), the reduction ratio from the bloom 1 to the round billet 3 (A×B)/πRis set to 2.0 or more and 9.0 or less. Even when a grain-boundary crack occurring in the bloom remains inside the round billet after rolling/forging, the crack can be removed by reduced center boring, and the seamless steel pipe can be manufactured without the occurrence of an inner face defect after manufacture.
Patent JP-2012156946-A (JP)
Title: Oscillation circuit and vibration type sensor using the same
Inventor: OSHIMA AKIHIRO
IPC: H03B5/30
Filed: 2011-01-28
Abstract: PROBLEM TO BE SOLVED: To provide an oscillation circuit capable of realizing stable oscillation of the oscillation circuit by reducing the effect of parasitic resistance and parasitic capacitance of a vibrator on the resonance characteristic (Q value, gain, etc.), with improved measurement accuracy of a vibration type sensor, and to provide the vibration type sensor using the same.SOLUTION: A current voltage conversion circuit which converts an output current signal of an electrostatic drive type vibrator (fixed electrode 1 and vibrator 3) to a voltage signal includes a calculation amplifier 14 and a negative impedance conversion circuit 10 equipped with resistors 11, 12, and 13.
Patent JP-2012155672-A (JP)
Title: Web page sharing apparatus and web page sharing method
Inventor: OTA MASARU
IPC: G06F13/00
Filed: 2011-01-28
Abstract: PROBLEM TO BE SOLVED: To automatically control operation of a plurality of communication devices in accordance with contents of a web page when sharing the web page among the communication devices.SOLUTION: Attribute determination means 122 determines an attribute of an acquired web page. Policy determination means 123 determines a share policy corresponding to the determined attribute on the basis of an attribute correspondence table which makes correspondent the attribute of the web page, share possibility information indicating whether to permit the web page to be shared by a guest terminal and operation possibility information indicating whether to permit the guest terminal to operate the web page. Web page creation means 124 creates a shared web page to be shared between a host terminal and the guest terminal on the basis of the acquired web page. Web page transmission means 125 transmits the shared web page to the guest terminal only when the share policy indicates that the web page is permitted to be shared by the guest terminal.
Patent JP-2012161874-A (JP)
Title: Side trimmer
Inventor: NAKATANI TAKAFUMI
IPC: B23D19/06
Filed: 2011-02-07
Abstract: PROBLEM TO BE SOLVED: To provide a side trimmer which is saved in space and energy by reducing the size and weight and which enables the user to easily monitor the cutting state and the maintenance management.SOLUTION: In this side trimmer 10, a band-shaped steel sheet W is threaded, sandwiched between a pair of upper and lower rotary blades 20a, 20b, and cut at both edges. Upper and lower chocks 21a, 21b provided with the upper and lower rotary blades 20a, 20b are provided to a single rectangular frame 17 to be raised and lowered in a cantilevered support form through linear guides 18a, 18b, 19a, 19b disposed on the two planes perpendicular to each other when viewed from above the single rectangular frame 17.
Patent JP-2011216468-A (JP)
Title: Electrode, and organic electroluminescent element
Inventor: KAWABE SATOMI
IPC: H05B33/28
Filed: 2011-02-07
Abstract: PROBLEM TO BE SOLVED: To provide an electrode having little variation in transmittance even after an environment testing under a high temperature-high humidity environment and excellent in a plane stability, and to provide an organic electroluminescent element excellent in a temporal stability in which the electrode is used.SOLUTION: In the electrode having a conductive metal layer containing a metal fiber on a substrate and a conductive polymer layer, the conductive metal layer contains an antioxidant and moreover the conductive polymer layer contains as a binder resin a polymer (A) containing at least either of a polymer having a structural unit represented by general formula (I) or a co-polymer having a structural unit represented by general formula (I) and general formula (II). The organic electroluminescent element includes this electrode.
Patent JP-2012163456-A (JP)
Title: Radio wave correction chronometer
Inventor: KATO AKIRA
IPC: G04G21/04
Filed: 2011-02-07
Abstract: PROBLEM TO BE SOLVED: To provide a radio wave correction chronometer that can contribute to enhancing the sensitivity of signal reception while ensuring the reliability of accuracy of time representation by its pointers (display members).SOLUTION: In a radio wave correction chronometer comprising: an antenna body that receives a standard radio wave; reception lead plates 203 disposed on the antenna body; motors 801 that drive display members each disposed to be rotatable around a rotation shaft; and magnetism-resistant plates 601 that are disposed closer to the reception lead plates 203 than the motors 801 in the shaft core directions of the time pointers and intercept or reduce the influence of an external magnetic field on the motors 801, the magnetism-resistant plates 601 are arranged at distances from the reception lead plates 203 in directions orthogonal to the shaft core directions of the time pointers.
Patent JP-2012168648-A (JP)
Title: Portable terminal, display control method and display control program
Inventor: NAKAO MASATOSHI
IPC: G06F3/0488
Filed: 2011-02-10
Abstract: PROBLEM TO BE SOLVED: To provide a portable terminal for allowing a user to easily draw a small handwriting image with high accuracy.SOLUTION: The inventive portable terminal includes: a handwriting input unit 11 for inputting an image through a touch panel; a display unit 17 for displaying the image; a display control unit 16 for, when an end portion included in the image is input, setting a display area displayed on the display unit 17 as a first display area, and, while a line portion included in the image is input, changing the display area from the first display area, where the start end of the line portion is displayed, to a second display area where the terminal of the line portion is displayed; a complement necessity determination unit 13 for determining the necessity of complement processing for complementing plural line portions L1 and L2 included in the image as one line portion; and a locus complement unit 14 for, when the complement processing is determined to be necessary, performing the complement processing. The complement necessity determination unit 13 determines that the complement processing is necessary when a first line portion input in the first display area is identified with a second line portion input in the second display area.
Patent JP-2012152533-A (JP)
Title: Instrument for eliminating bodily and mental concerns
Inventor: KUROSAWA NAOMI
IPC: A47C27/00
Filed: 2011-01-25
Abstract: PROBLEM TO BE SOLVED: To provide an instrument for eliminating a bodily concern by magnetism and eliminating a mental concern by displaying data since many modern people have concerns about health, have physical and mental fatigue due to increased stress and make a variety of efforts to maintain health.SOLUTION: Magnetism of a mattress and a pillow is rolled by a conveyor. The instrument outputs plus magnetism to magnets (1,500 G) in a comforter and outputs negative magnetism to magnets (750 G) in a mattress and provides a massaging effect and a blood circulation promotion effect to a person simply lying on a bed. The instrument contributes to daily health management by enabling measurements (blood pressure, weight, pulses, and arteriosclerosis (ABI method)).
Patent JP-2012167050-A (JP)
Title: Water soluble crosslinking agent
Inventor: YAMAUCHI HIROSHI
IPC: C08F220/06
Filed: 2011-02-14
Abstract: PROBLEM TO BE SOLVED: To provide a new water soluble crosslinking agent by means of which a hydrophilic crosslinked polymer that can be used suitably for a field such as cosmetic and toiletry product is produced in aqueous polymerization in conditions such as reverse phase suspension polymerization and aqueous solution polymerization.SOLUTION: The water soluble crosslinking agent contains a water-soluble sucrose allyl ether having allyl ether group and hydroxide group. Preferably, the degree of etherification of the water-soluble sucrose allyl ether is 1.8 to 4.0.