baber/WOPTO huggingface dataset:
Patent JP-WO2018088385-A1 (JP)
Title: 側孔が開閉自由な気管切開チューブ
IPC: A61M16/04
Filed: 2017-11-07
Abstract: 本発明は、気管切開チューブの内腔を実質的に狭くすることなく、側孔が開閉自由な気管切開チューブを提供する。本発明者らは、２つの構成の気管切開チューブ（Ａ）、（Ｂ）は、シャッターを使用することにより、気管切開チューブの内腔を狭くすることなく、側孔の開閉が自由であることを確認した。
Patent JP-WO2018092177-A1 (JP)
Title: スープ類の供給装置
IPC: B67D1/07
Filed: 2016-11-21
Abstract: 本発明のスープ類の供給装置は、ホッパーに収納されたスープ類を内弁２６の回転及び前記プランジャー３０の進退動により、一定量ずつ供給するスープ類の供給装置Ｘに於いて、係脱手段６１は、撹拌用モータの出力軸１４ａの下端部に外嵌合状態に設けられていると共に係合部分を有する筒状第１係合体６２と、係合部分に係脱する被係合部分を有すると共に垂直回転軸の上端部に外嵌合状態に設けられた筒状第２係合体６３とから成り、筒状第２係合体には垂直回転軸の上端部に形成した挿通孔１０と連通する横方向の係合孔６４が形成され、該係合孔と挿通孔にロックボルト６５の棒状係入部６５ｂが差込まれており、少なくともホッパー用上蓋及び垂直回転軸を洗浄する際、機体の上部収納箱の自由端部を上方に持ち上げ、かつホッパー用上蓋をホッパーから外した状態で、ロックボルトを係合孔と挿通孔から引き抜き、これにより筒状第２係合体６３、垂直回転軸９及びホッパー用上蓋８を、それぞれ分解することができることを特徴とするものであって、ホッパー用上蓋及び撹拌羽を有する垂直回転軸を洗浄する際、少なくともこれらの部品（上蓋と垂直回転軸）を簡単に分解することができると共に、洗浄後も、これらの部品を簡単に結合することができる。
Patent JP-WO2018135136-A1 (JP)
Title: 光学部品および光学部品の製造方法
IPC: G02B6/32
Filed: 2017-11-28
Abstract: 光学部品１０は、第１屈折率を有する第１材料で形成された、第１主面１６および第１主面１６とは反対側の第２主面１８を有する第１層１２と、第１屈折率と異なる第２屈折率を有する第２材料で形成された、第３主面２０および第３主面２０とは反対側の第４主面２２を有する第２層１４とを備え、第２主面１８と第３主面２０とが当接するように、第１層１２と第２層１４とを積層した光学部品である。第１層１２の第１主面１６にレンズ２４が形成され、第２層１４の第３主面２０にボルテックス形状２６が形成される。
Patent WO-2019146702-A1 (WO)
Title: Mirror member and head-up display device using same
Inventor: TSURUMARU Toshiro
IPC: G02B27/01
Filed: 2019-01-24
Abstract: Provided are a mirror member for which component management is easy and which is capable of improving productivity, and a head-up display device that uses the same. The head-up display device is provided with a liquid crystal display element 23 that emits a display light L, and a mirror member 31 that reflects the display light L, the head-up display device projecting to a projection member 13 the display light L reflected by the mirror member 31 to carry out display for an observer 14. The mirror member 31 is provided with a substrate 31a, and a coating 31b formed on a front surface part P1 of the substrate 31a. A non-coating formed region 31c at which the coating 31b is not formed is provided on the front surface part P1, and an identification mark 31d is provided in the non-coating formed region 31c.
Patent WO-2019151466-A1 (WO)
Title: Method of manufacturing housing
Inventor: TAN HARUHIKO
IPC: B22D17/22
Filed: 2019-02-01
Abstract: Provided is a method of manufacturing a housing in which a vertical relationship is maintained between adjacent surfaces. The method of manufacturing a housing comprises: a first part forming step of forming a first part by injecting a molten metal into a cavity inside of a first die that has a first mold and a second mold and corresponds to a first part having two plate portions connected so that an angle formed by the main surfaces is 90 degrees, and molding the two main surfaces of the two plate portions with only one of the first and second molds; and a second part forming step of forming a second part by injecting a molten metal into a cavity inside of a second die that has a third mold and a fourth mold and corresponds to a second part having two plate portions connected so that an angle formed by the main surfaces is 90 degrees, and molding the two main surfaces of the two plate portions with only one of the third and fourth molds.
Patent WO-2019163567-A1 (WO)
Title: Semiconductor memory device and electronic apparatus
Inventor: SATO MASAHIRO
IPC: G11C11/16
Filed: 2019-02-08
Abstract: [Problem] To enable rewrites, which are due to the influence of external factors, of information held in memory elements to be detected in a preferred manner. [Solution] A semiconductor memory device provided with: multiple memory elements each transitioning to one of multiple states in accordance with a voltage applied thereto; a control unit for, upon allocating at least two memory elements included in the multiple memory elements as one bit, controlling the application of the voltage to each of the two or more memory elements corresponding to each of the bits; and a determination unit for determining that the bit is normal if the states of some of the two or more memory elements allocated as the bit are different from the states of the other memory elements, and determining that the bit is abnormal if the respective states of the two or more memory elements are the same.
Patent WO-2020166023-A1 (WO)
Inventor: MATSUMURA YUKI
IPC: H04B7/024
Filed: 2019-02-14
Abstract: 本開示の一態様に係るユーザ端末は、第１の送受信ポイント（Transmission/Reception　Point（ＴＲＰ））からの第１のＰＤＳＣＨ（Physical　Downlink　Shared　Channel）と、前記第１のＰＤＳＣＨと時間及び周波数リソースの少なくとも一方が重複する第２のＴＲＰからの第２のＰＤＳＣＨと、を受信する受信部と、前記第１のＰＤＳＣＨに対する第１のHybrid　Automatic　Repeat　reQuest　ACKnowledgement（ＨＡＲＱ－ＡＣＫ）及び前記第２のＰＤＳＣＨに対する第２のＨＡＲＱ－ＡＣＫの送信のために、共通のコードブックを利用する制御を行う制御部と、を有することを特徴とする。本開示の一態様によれば、マルチＴＲＰを用いる場合であってもＨＡＲＱ－ＡＣＫ制御を好適に実施できる。
Patent WO-2019202878-A1 (WO)
Title: Recording medium, information processing apparatus, and information processing method
Inventor: OTSUKA JUNJI
IPC: B25J9/16
Filed: 2019-03-12
Abstract: There is provided a recording medium having a program recorded thereon, the program causing a computer to function as: a learning section configured to learn an action model for deciding an action of an action body on a basis of environment information indicating a first environment, and action cost information indicating a cost when the action body takes an action in the first environment; and a decision section configured to decide the action of the action body in the first environment on a basis of the environment information and the action model.
Patent WO-2019188378-A1 (WO)
Title: Photosensitive resin laminate, dry film, cured product, electronic component, and method for producing electronic component
Inventor: FUNAKOSHI CHIHIRO
IPC: G03F7/027
Filed: 2019-03-14
Abstract: Provided are a photosensitive resin laminate that can be photolithographically patterned notwithstanding the incorporation of magnetic particles; a dry film in which the laminate is supported or protected by a film; a cured product of the laminate or the dry film laminate; an electronic component comprising the cured product; and a method for producing an electronic component using the laminate. The photosensitive resin laminate and so forth are characterized in that a resin layer (A) containing an alkali-soluble resin and magnetic particles and a photosensitive resin layer (B) containing an alkali-soluble resin and a photopolymerization initiator are laminated.
Patent WO-2020188647-A1 (WO)
Inventor: SAKAKIBARA KEISUKE
IPC: H05K13/08
Filed: 2019-03-15
Abstract: The measurement device disclosed in the present specification is a component measurement unit 20 for measuring the height of an object of measurement on the basis of a light section method, and comprises a component recognition camera 22 for imaging an electrode E2 while an electronic component E is being moved, a plurality of light source units 24 that are disposed one-by-one at positions on both sides of an imaging area P and project linear light onto the electrode E2, and a control unit 110. The control unit 110 calculates a three-dimensional shape corresponding to first reflected light R1 reflected from the electrode E2 toward the component recognition camera 22 on the basis of light reception amounts of the reflected light R for the respective light source units 24 and measures the height of the electrode E2.
Patent WO-2020021762-A1 (WO)
Title: Electrostatic capacitance sensor, control method for same, and program
Inventor: YAMADA TOMOKI
IPC: G06F3/044
Filed: 2019-03-15
Abstract: An electrostatic capacitance sensor having: N electrode groups arranged in a detection region, each including one or more electrodes; an electrostatic capacitance detection unit for detecting, for each electrode, the electrostatic capacitance of a capacitor formed by an object and the electrode; a sum total calculation unit for adding up, for each electrode group, the detected value of the electrostatic capacitance obtained for each electrode on the basis of the detection result of the electrostatic capacitance detection unit, and calculating the sum total of the detected values for each of the N electrode groups; and a determination unit for determining, on the basis of the sum total of N calculated for the N electrode groups, whether or not the detection result of the electrostatic capacitance detection unit is affected by noise.
Patent WO-2019188549-A1 (WO)
Title: Connection jig
Inventor: KUBO KIYOFUMI
IPC: G01R35/00
Filed: 2019-03-19
Abstract: This connection jig (1) is for conductively connecting a standard to a second external device, the standard comprising a connection unit which can connect to a first external device over a coaxial connection cable, and at least an electrostatic capacitance that acts as a standard of an electrical property. The connection jig is provided with a substrate (9) covered on the surface by a planar pattern (90), and on said substrate, a coaxial connector (8) which can be detachably attached to the connector unit and a mounting pad (15) on which a capacitor (14) is mounted are provided. The mounting pad and the planar pattern are connected by only a connection pattern (16b) having a width dimension w2 smaller than the width direction W2 of the mounting pad.
Patent WO-2019188707-A1 (WO)
Title: Medical device
Inventor: UCHIDA TAKAYUKI
IPC: A61M25/10
Filed: 2019-03-20
Abstract: [Problem] To provide a medical device which, when a lumen is partially occluded by an expanding member such as a balloon, suppresses the expanding member from unintentionally contacting the inner wall surface of the lumen.
[Solution] This medical device 100 comprises: an elongate hollow member 10 having inner cavities 12, 14; a balloon 20 which can be expanded with a fluid supplied from the inner cavities of the hollow member; and a surrounding member 30 which is configured to be capable of displacement outwards in the radial direction r crossing the length direction d of the hollow member, and which, in a state displaced radially outwards, surrounds the balloon.
Patent WO-2019188723-A1 (WO)
Inventor: WATASE TAKEHIRO
IPC: G06Q50/10
Filed: 2019-03-20
Abstract: L'invention concerne un système de gestion de tour (1000) qui gère une attente de tour au niveau d'une installation et qui comprend : un terminal de gestion de tour (200) qui accepte l'enregistrement d'une attente de tour pour l'installation; et un serveur de gestion de tour (100) qui reçoit des informations concernant l'enregistrement d'attente de tour à partir du terminal de gestion de tour (200) et qui gère la situation d'attente de tour de l'installation. Le terminal de gestion de tour (200) est pourvu d'une unité de confirmation de sortie temporaire (210) qui accepte, au moment de l'enregistrement d'acceptation, une opération pour choisir s'il faut ou non quitter l'installation pendant le temps d'attente. Le serveur de gestion de tour (100) comprend : une unité d'enregistrement d'attente de tour (120) qui enregistre, dans une liste d'attente de tour de l'installation, les informations concernant l'enregistrement d'attente de tour, reçues en provenance du terminal de gestion de tour (200) et comprenant des informations indiquant s'il est préférable ou non de quitter l'installation pendant le temps d'attente; et une unité de calcul de temps d'attente de tour estimé (120) qui calcule un temps d'attente estimé à présenter à un groupe attendant un tour sur la base du nombre de groupes attendant un tour enregistrés dans la liste d'attente de tour de l'installation. Concernant des groupes qui choisissent de quitter l'installation pendant le temps d'attente au moment de l'enregistrement d'acceptation parmi les groupes attendant un tour enregistrés dans la liste d'attente de tour de l'installation, l'unité de calcul de temps d'attente estimé (120) utilise une valeur obtenue en multipliant le nombre desdits groupes par un taux de retour en tant que nombre de groupes d'attente dans le calcul du temps d'attente estimé.
Patent WO-2019189502-A1 (WO)
Inventor: OGATA KENICHI
IPC: C10N30/02
Filed: 2019-03-27
Abstract: 高トラクション係数と優れた低温流動性とをより高い次元で両立するとともに、高引火点を有する、少なくとも（ｉ）二つの環が３つ以上の炭素原子を共有して結合する橋かけ二環、及び（ｉｉ）炭素数４以上の主鎖を有する分岐状炭化水素基を含むアシルオキシ基又はヒドロカルビルオキシカルボニル基、を有する含環化合物を含有する潤滑油基油、該潤滑油基油を含む潤滑油組成物、及び該潤滑油組成物を用いた無段変速機を提供する。
Patent WO-2020202459-A1 (WO)
Inventor: HOTTA YOUHEI
IPC: F04C29/02
Filed: 2019-04-02
Abstract: 鉛直方向に延び、底部（１１Ａ）に油（３８）が溜まることで形成された油溜まり（３９）が配置されたハウジング（１１）と、モータ（２３）によって駆動されて、冷媒を圧縮する圧縮機構（２５）と、を備えた圧縮機（１０）であって、ハウジング（１１）内の上部に移動した油をハウジング（１１）内の底部（１１Ａ）に導く第１の油戻し経路（４５）を備え、第１の油戻し経路（４５）は、ハウジング（１１）に内設されて鉛直方向に延びる油戻し経路本体（５１）と、ハウジング（１１）に形成され、油戻し経路本体（５１）の下端とハウジング（１１）内の底部（１１Ａ）とを連通させる油出口部（５２）と、を有する。
Patent WO-2019203040-A1 (WO)
Inventor: TAKAHASHI SHIGEO
IPC: C11D1/90
Filed: 2019-04-08
Abstract: La composition nettoyante contient (A) un acide gras en C8-24 ou un sel de celui-ci, (B) un dérivé de taurine ou un sel de celui-ci, et (C) un dérivé de glycérine. Le rapport molaire du composant (A) et du composant (B) est de 0,5 à 2 moles de composant (B) par mole de composant (A).
Patent WO-2019208382-A1 (WO)
Inventor: TAKAHASHI KAZUHIRO
IPC: F25B1/00
Filed: 2019-04-18
Abstract: 本開示は、Ｒ４１０Ａと比べてＧＷＰが低いこと及びＲ４１０Ａと同等のＣＯＰを有すること、という特性を有する冷媒を含有する組成物を提供する。本開示は、具体的には、冷媒を含有する組成物であって、前記冷媒が、ＣＯ２（Ｒ７４４）、並びにトランス－１，２－ジフルオロエチレン［（Ｅ）－ＨＦＯ－１１３２］、シス－１，２－ジフルオロエチレン［（Ｚ）－ＨＦＯ－１１３２］、フルオロエチレン（ＨＦＯ－１１４１）及び３，３，３－トリフルオロプロピン（ＴＦＰ）からなる群より選択される少なくとも１種の化合物Ａを含有する、組成物を提供する。
Patent WO-2020148925-A1 (WO)
Inventor: SANO Sota
IPC: H02P27/06
Filed: 2019-04-23
Abstract: Dispositif de conversion de puissance pourvu : d'une unité de détection de courant (13) pour détecter le courant circulant dans une machine électrique rotative (3) ; d'une unité de détermination de motif de commutation (14) pour déterminer un motif de commutation sur la base du courant détecté, une valeur estimée de courant, une valeur d'instruction de courant et une valeur d'instruction d'harmonique de courant ; et d'une unité de conversion de puissance (12) pour délivrer de l'énergie CA à la machine électrique rotative (3) conformément au motif de commutation. L'unité de détermination de motif de commutation (14) détermine le motif de commutation de telle sorte qu'une valeur de courant suit la valeur d'instruction de courant et les harmoniques de courant sont réglées pour être inférieures ou égales à une valeur limite.
Patent WO-2019212032-A1 (WO)
Title: Vehicle lamp
Inventor: MANO MITSUHARU
IPC: F21Y115/10
Filed: 2019-04-25
Abstract: A lamp unit (1) and a camera (2) are disposed in a lamp housing (3) having a translucent cover (32), the camera (2) is able to perform aiming adjustment, and the camera (2) is provided with a lens hood (25) for preventing light having been emitted from the lamp unit (1) from entering the camera (2). There is a necessary gap between the lens hood (25) and the translucent cover (32), and thus tilting of the camera (2) is allowed.
Patent WO-2020225855-A1 (WO)
Inventor: MAKI TAKASHI
IPC: A01G9/12
Filed: 2019-05-07
Abstract: A band material to which an adhesive root of a self-adhesive climbing plant can adhere is disposed vertically upright as one body with a rigid material disposed on the back side of the band material. Both sides of the band material in the horizontal direction are surrounded by non-water retentive, non-moisture retentive wall materials which stand vertically upright parallel to the band material. Multiple support materials which are bridged between the wall materials and prevent the self-adhesive climbing plant from tilting in the direction away from the band material are provided at predetermined intervals in the vertical direction. The present invention can prevent a self-adhesive climbing plant from growing over the wall materials using the wall materials as supports and enables the self-adhesive climbing plant to grow upward in the vertical direction along the band material. Additionally, the present invention can prevent the self-adhesive climbing plant from being hit by wind which swings the self-adhesive climbing plant in directions different from the growth direction of the self-adhesive climbing plant, and prevent the self-adhesive climbing plant from being swung in directions different from the growth direction of the self-adhesive climbing plant. Accordingly, the present invention promotes the growth of the self-adhesive climbing plant compared to conventional techniques while keeping the self-adhesive climbing plant within the width of the band material and guiding the growth thereof in a desired direction.
Patent WO-2019225693-A1 (WO)
Title: Surgical observation system
Inventor: KOBAYASHI EIJI
IPC: A61B90/20
Filed: 2019-05-23
Abstract: A monitor 6 is disposed on the opposite side of a surgery table 1 so that an assistant N3, for example, who is likewise positioned on the opposite side can view a surgery area G directly without being blocked by the monitor 6. A camera 3 has an operating distance WD of more than or equal to 60 cm and is therefore above a view field V for a main doctor D1 to view the monitor 6, so that the visibility of the monitor 6 is not hindered. The operating distance is not more than 100 cm so that the resolution of the camera 3 is not lowered too much.
Patent WO-2019230931-A1 (WO)
Title: Robot and robot control method
Inventor: UTO Tatsuhiro
IPC: B65B39/00
Filed: 2019-05-31
Abstract: A robot comprises a base; a first robot arm attached to the base; a first end effector that is attached to the distal end of the first robot arm and holds a workpiece; a second robot arm attached to the base; a second end effector that is attached to the distal end of the second robot arm and performs a predetermined operation on the workpiece; and a control device that controls the operation of the first and second robot arms. The control device controls the operation of the first robot arm so as to convey the workpiece held by the first end effector from a first position to a second position, and controls the operation of the second robot arm so as to perform a predetermined operation other than the conveying operation on the workpiece, which is being conveyed, with the second end effector while following the first robot arm that conveys the workpiece.
Patent WO-2020245874-A1 (WO)
Title: Opaque quartz glass, and method for producing same
Inventor: ITO Chiemi
IPC: C03B20/00
Filed: 2019-06-03
Abstract: [Problem] To obtain a large ingot of an opaque quartz glass which has excellent heat ray blocking properties, light blocking properties, and mechanical strength, has a small roughness of a baked surface and a smooth surface. [Solution] This opaque quartz glass ingot has increased strength and a minimum increase in surface roughness during baking, by preventing stress concentration at the ends of bubbles by making bubbles in a quartz glass have the shape of a substantially true sphere, and making the average particle diameter at most 1 μm, wherein the opaque quartz glass ingot has a density of 2.16-2.19 g/cm 3 , a whiteness of at least 90% at a thickness of 10 mm, a reflectance of light at a wavelength of 0.2-3 μm of 85% or more at a thickness of 3 mm, and a bending strength of at least 75 MPa, and a surface roughness Ra of the baked surface of at most 0.5 μm.
Patent WO-2020045093-A1 (WO)
Inventor: OGAMI SATOSHI
IPC: G01L1/00
Filed: 2019-08-14
Abstract: This method for acquiring the stress distribution of tempered glass comprises a step in which, as advance preparation, stress distributions for a plurality of tempered glass sheets including tempered glass sheets with different tempering conditions are measured and the results of measuring first stress distributions further toward the top surfaces of the glass sheets than the glass depths at the positions where the stress distributions bend and the results of measuring second stress distributions further toward the bottom surfaces of the glass sheets than the glass depths are used to derive a parameter indicating the relationship between the first stress distributions and second stress distributions, and a step in which the parameter is used to determine the stress distribution of tempered glass to be measured. The step in which the stress distribution is determined includes a step for measuring the first stress distribution of the tempered glass to be measured and a step for calculating the second stress distribution on the basis of the parameter.
Patent WO-2020045221-A1 (WO)
Inventor: KANOU KINYA
IPC: B60B33/00
Filed: 2019-08-22
Abstract: L'invention concerne une roulette universelle (1) comprenant : un corps de roulette (2) ; un élément de rotation (3) ; un élément de fixation (4) ; et un moyen de limitation de rotation (5). Le corps de roulette (2) comporte : un support (6) ; et une roue (8) qui est soutenue en pivotement sur un essieu (7) fixé au support (6). L'élément de rotation (3) est soutenu en rotation sur le support (6) autour d'un premier axe de rotation (j1) s'élevant à partir du support (6). L'élément de fixation (4) est soutenu en rotation sur l'élément de rotation (3) autour d'un second axe de rotation (j2) s'élevant à partir de l'élément de rotation (3). Le moyen de limitation de rotation (5) limite la plage de rotation autour du premier axe de rotation (j1) de l'élément de rotation (3).
Patent WO-2020040278-A1 (WO)
Inventor: IWAGAMI NAOKI
IPC: H02M7/48
Filed: 2019-08-23
Abstract: インバータ回路を含むパワー部と、パワー部に接続されるコンデンサと、パワー部を冷却する冷却部と、パワー部とコンデンサと冷却部とを収容するインバータ筐体と、を備えるインバータユニット。インバータ筐体は、底壁と、底壁の周縁から上側に延びる筒状の側壁と、底壁の下面をモータに向けて固定するモータ接続部と、を有する。冷却部とコンデンサとは、底壁の上面に沿う方向に並んで底壁上に配置される。パワー部は、冷却部の上側に位置し、コンデンサの下面は、冷却部の下面よりも下側に位置し、パワー部の上面とコンデンサの上面とは同一平面に沿って配置される。
Patent WO-2020075407-A1 (WO)
Inventor: SOMA FUMIHITO
IPC: B64D27/24
Filed: 2019-08-28
Abstract: A flight body 20 comprises a rotary blade 200 that generates lift or propulsion by rotating, and a rotary electric machine unit that rotates the rotary blade 200. The rotary blade 200 receives wind power and rotates when not flying. The rotary electric machine unit generates power on the basis of the force for rotating the rotary blade 200 when not flying. The flight body 20 may also comprise a power storage device 230 that stores electricity generated by the rotary electric machine unit. The flight body 20 may also comprise a detachably connected cartridge 260 having a desired function.
Patent WO-2020050265-A1 (WO)
Inventor: MIYATA TETSUSHI
IPC: H01L31/10
Filed: 2019-09-03
Abstract: L'invention concerne une structure 1 dans laquelle un élément de conversion photoélectrique à lumière infrarouge 300 comprenant une couche de conversion photoélectrique à lumière infrarouge comprenant un matériau de conversion photoélectrique qui a une longueur d'onde d'absorption maximale dans une région infrarouge et qui génère des charges correspondant à la lumière de région infrarouge absorbée, un élément de conversion photoélectrique à lumière visible 200 qui absorbe la lumière de longueurs d'onde d'une plage visible, et qui génère des charges correspondant à la lumière absorbée, et un filtre optique 400 qui bloque et transmet des longueurs d'onde de lumière prédéterminées sont disposés sur le même trajet optique, l'élément de conversion photoélectrique de lumière infrarouge 300 et l'élément de conversion photoélectrique de lumière visible 200 étant disposés sur le côté de sortie de lumière du filtre optique 400. Un capteur optique et un dispositif d'affichage d'image comprennent la structure 1.
Patent WO-2020054711-A1 (WO)
Title: Monomer composition for contact lens, polymer thereof, contact lens, and production method thereof
Inventor: MATSUOKA YOSUKE
IPC: G02C7/04
Filed: 2019-09-10
Abstract: Provided is a contact lens that, even when produced using a hydrophobic mold made of polypropylene or the like, can be demolded with high yield and that has excellent elongation at break and comfort during wearing. Also provided are a monomer composition and a polymer suitably used to produce the contact lens. The monomer composition contains a phosphorylcholine group-containing methacrylic ester monomer (A), a hydroxyl group-containing monomer (B), a siloxanyl group-containing itaconic acid diester monomer (C), a siloxanyl group-containing (meth)acrylate (D), and a crosslinker (E) at a specific ratio.