baber/WOPTO huggingface dataset:
Patent WO-2019186655-A1 (WO)
Title: Substrate processing device, semiconductor device production method and program
Inventor: SASAKI SHINYA
IPC: H01L21/324
Filed: 2018-03-26
Abstract: In order to enable uniform substrate processing to be performed, the present invention comprises: a processing chamber for processing a substrate; a substrate holding unit for holding the substrate; a gas introduction unit for introducing a cooling gas into the processing chamber; an exhaust unit for discharging the cooling gas supplied to the processing chamber; a plurality of microwave generators for generating microwaves; a temperature measuring unit for measuring the temperatures at a center portion and an edge portion of the substrate held by the substrate holding unit; and a control unit constituted in such a manner as to control, in response to the temperatures of center portion and the edge portion of the substrate measured by the temperature measuring unit, the gas introduction unit and the plurality of microwave generators so as to adjust the supply flow rate of the cooling gas introduced from the gas introduction unit while stopping at least one of the plurality of microwave generators.
Patent WO-2018203475-A1 (WO)
Title: 温度センサ及び温度センサを備えた装置
Inventor: HIRABAYASHI TAKAAKI
IPC: G01K7/22
Filed: 2018-04-18
Abstract: 信頼性の確保及び熱応答性を向上することができる温度センサ及び温度センサを備えた装置を提供すること。　少なくとも一対の電極部（１２ａ）、（１２ｂ）を有する表面実装型の感熱素子（１０）と、前記一対の電極部（１２ａ）、（１２ｂ）と溶接により電気的に接合されるリード部（２２ａ）、（２２ｂ）と、前記リード部（２２ａ）、（２２ｂ）を固定して保持するホルダ（２１）と、前記感熱素子（１０）及びリード部（２２ａ）、（２２ｂ）の少なくとも一部を絶縁する絶縁被覆部（２３）とを備えている。リード部（２２ａ）、（２２ｂ）は、板状の金属板であり、融点が１３００℃以下の金属材料によって形成される。
Patent WO-2019044066-A1 (WO)
Title: Acicular anhydrous magnesium carbonate and method for producing same, and resin composition
Inventor: NAKAMURA MASASHI
IPC: C08K7/00
Filed: 2018-05-23
Abstract: Provided are: an acicular anhydrous magnesium carbonate having an excellent reinforcing property and water resistance; a method for producing the same; and a resin composition. In one embodiment, the present invention pertains to an acicular anhydrous magnesium carbonate having a ratio of an average major axis to an average minor axis of 5 or more. Preferably, the average major axis is 10 μm or more. Preferably, the cumulative 50% diameter(d50) of the anhydrous acicular magnesium carbonate, in a volume-based particle size distribution, as obtained by a laser diffraction particle size distribution analyzer is 5 μm-200 μm.
Patent WO-2019077798-A1 (WO)
Title: Protective element
Inventor: TANAKA YOSHIAKI
IPC: H01H37/76
Filed: 2018-06-15
Abstract: Provided is a protective element wherein malfunctions do not readily occur despite the magnitude of the current that may flow therethrough. This protective element 10 comprises a positive electrode 22, a negative electrode 24, an inter-electrode conductor 26, a joining material 28, a compression coil spring, a thermal energy supplying part 32, and a holding body 34. The inter-electrode conductor 26 is disposed spanning across the positive electrode 22 and the negative electrode 24. The joining material 28 joins the inter-electrode conductor 26 to each of the positive electrode 22 and the negative electrode 24. The compression coil spring applies a separation force onto the inter-electrode conductor 26. The thermal energy supplying part 32 supplies thermal energy to the joining material 28. One end 60 of one plate-shaped part 50 of the positive electrode 22 protrudes to the exterior of the holding body 34. The one plate-shaped part 50 is plate shaped. One end 64 of another plate-shaped part 54 of the negative electrode 24 protrudes to the exterior of the holding body 34 in a different direction from that of the one plate-shaped part 50. The other plate-shaped part 54 is disposed on the same plane as the one plate-shaped part 50. The other plate-shaped part 54 is plate shaped.
Patent WO-2019012956-A1 (WO)
Title: Sensing device, sensing system, and server
Inventor: KATO HIDEKAZU
IPC: G06F21/53
Filed: 2018-06-22
Abstract: The objective of the present invention is to prevent leakage of information even when attacked from an external network. An image processing device (1) is provided with a physical network interface card (NIC) (15), is connected to an image capturing device (5), and includes a hypervisor (13) which embodies a rich OS (11) and a secure OS (12). The rich OS (11) is provided with a network communication unit (111) which communicates with a management device (2) via the physical NIC (15), and an inter-OS communication unit (112) which communicates with the secure OS (12). The secure OS (12) is provided with: a control unit (121) which controls the image capturing device (5); a decrypting unit (123) which decrypts encrypted data; an encrypting unit (124) which encrypts data output from the control unit (121); and an inter-OS communication unit (122) which receives encrypted data from the management device (2) via the rich OS (11) and delivers the same to the decrypting unit (123), and transmits encrypted data encrypted by the encrypting unit (124) to the management device (2) via the rich OS (11).
Patent WO-2019004196-A1 (WO)
Title: Cemented lens and in-vehicle camera
Inventor: KITSUNEZUKA MASASHI
IPC: G02B3/00
Filed: 2018-06-26
Abstract: This cemented lens (19) is provided with a first lens (31), a second lens (33), and a cemented layer (35). The first lens is provided with a convex surface (31A). The second lens is provided with a concave surface (33A). The cemented layer joins the convex surface and the concave surface. The cemented layer includes a resin (37) and a gap agent (39).
Patent WO-2019009160-A1 (WO)
Title: Positive electrode active material for non-aqueous electrolyte secondary battery, method for manufacturing positive electrode active material for non-aqueous electrolyte secondary battery, and non-aqueous electrolyte secondary battery using said positive electrode active material
Inventor: TOMA TAKAHIRO
IPC: H01M4/525
Filed: 2018-06-27
Abstract: Provided is a positive electrode active material for a non-aqueous electrolyte secondary battery, wherein, when the positive electrode active material is used in a positive electrode of a battery, the negative electrode resistance is reduced without a change in the composition ratio between the positive and negative electrodes, and a battery having excellent power characteristics can be obtained. The positive electrode active material for a non-aqueous electrolyte secondary battery comprises a lithium metal composite oxide, wherein the lithium metal composite oxide is represented by the general formula LiaNi1-x-y-zCoxDyEzO2 (in the formula, 0.05≤x≤0.35, 0≤y≤0.35, 0.002≤z≤0.05, 1.00≤a≤1.30, D is at least one element selected from among Mn, V, Mo, Nb, Ti, and W, and E is an element that is alloyed with lithium at a nobler potential than the potential at which ions of element E are reduced), and is composed of primary particles and secondary particles formed by aggregation of the primary particles, an element E-containing oxide being present on the surfaces of either the primary particles or the secondary particles.
Patent WO-2019004382-A1 (WO)
Title: Immunoisolation membrane, method for producing immunoisolation membrane, transplant chamber, and transplant device
Inventor: MOCHIZUKI YUSUKE
IPC: A61L27/18
Filed: 2018-06-28
Abstract: Provided are: an immunoisolation membrane which is resistant to a drop in substance permeability, and which can be produced inexpensively; and a method for producing same. This immunoisolation memrane contains a surface-modified porous membrane, and the surface-modified porous membrane contains polysulfone or polyethersulfone and preferably polyvinyl pyrrolidone. The ratio of the number of oxygen atoms to the total number of oxygen atoms, nitrogen atoms, carbon atoms and sulfur atoms on at least one surface of the surface-modified porous membrane falls within the range of 11.3% to 31.2%, inclusive, and the ratio of the number of nitrogen atoms to the aforementioned total number of atoms falls within the range of 0.1% to 4.0%. The production method for immunoisolation membrane includes subjecting the porous membrane surface to physical oxygen atom penetration, such as plasma treatment.
Patent WO-2019026512-A1 (WO)
Title: Stretched multilayer synthetic resin film
Inventor: NYUUI Tatsuki
IPC: G02B5/30
Filed: 2018-07-03
Abstract: The present invention relates to a stretched multilayer synthetic resin film which is suitable for use as a retardation film and the like. A stretched multilayer synthetic resin film according to the present invention comprises layers (A) that contain a resin (A) and a layer (B) that contains a resin (B); and the layers (A) are laminated on both surfaces of the layer (B). This stretched multilayer synthetic resin film is characterized in that: the resin (A) is a vinyl copolymer resin which contains a (meth)acrylic acid ester constituent unit (a) and an aliphatic vinyl constituent unit (b) having a cyclohexyl skeleton at a predetermined quantitative ratio; and the resin (B) is a vinyl copolymer resin which contains a styrene constituent unit (c) at a predetermined quantitative ratio. This film is also characterized by having an in-plane retardation Re within the range of from 0.0 nm to 30.0 nm and a retardation in the thickness direction Rth within the range of from -300 nm to -30 nm.
Patent WO-2019013171-A1 (WO)
Title: Wheelchair
Inventor: MASUNO KOJI
IPC: A61G5/10
Filed: 2018-07-09
Abstract: In order to achieve a wheelchair that combines both good tight turning during travel and stability during wheel locking, a wheelchair (10) according to the present invention comprises: a support mechanism (6) comprising two support members (63) on a progression direction front side of drive wheels (3); and an operation lever (62) that switches between a support condition, in which at least the two support members (63) and the pair of drive wheels (3) support a vehicle body frame (1) with regard to a floor surface, and a separated condition, in which the support members (63) have been separated from the floor surface.
Patent WO-2020021702-A1 (WO)
Title: Stator, electric motor, compressor and air conditioning apparatus
Inventor: HIROSAWA YUJI
IPC: H02K3/34
Filed: 2018-07-27
Abstract: The stator according to the present invention comprises: a stator core having a yoke that extends in a circumferential direction centered upon a central shaft, teeth that extend from the yoke toward the central shaft, and slots adjacent to the teeth in the circumferential direction; and a coil that is wound around the teeth and is accommodated in the slots. The stator core has a first core section positioned on an end in the axial direction of the central shaft, and a second core section positioned in the center in the axial direction. The area of the slots in the first core section is greater than the area of the slots in the second core section. An insulator positioned between the teeth and the coil is provided in the first core section. The stator core has a hole that penetrates the first core section and reaches the second core section. The insulator comprises a projection that is inserted, in the hole, up to the position of the second core section.
Patent WO-2019026795-A1 (WO)
Title: Hydrophilic polyamide or polyimide
Inventor: KANEKO TATSUO
IPC: C08G73/10
Filed: 2018-07-27
Abstract: Provided are a hydrophilic polyamide and polyimide having unique properties, such as heat resistance, of polyamide and polyimide. According to the present invention, a polymer compound is characterized by having a repeating unit represented by general formula (1) (in formula (1), M1 and M2 each independently represent any one selected from a hydrogen atom, a monovalent metal atom, an alkaline earth metal atom, and an ammonium ion (excluding the case in which both M1 and M2 are a hydrogen atom), X1 and X2 represent an organic group, m and n each independently represent the number of substituents, Z1 represents a carbonyl group which may have a hydrogen atom or a substituent, Z2 represents a hydrocarbon group which may have a substituent, Z3 represents a carbonyl group which may have a hydrogen atom or a substituent, and when Z1 or Z3 is a carbonyl group which may have a substituent, Z1 or Z3 each independently can form a cyclic structure with Z2.)
Patent WO-2020049729-A1 (WO)
Inventor: MIMORI TAKASHI
IPC: B23Q11/00
Filed: 2018-09-07
Abstract: A machine tool (100) comprises: a splash guard (7) having a machining chamber discharge opening (71) directly below a table (6), the splash guard (7) being formed from a vertical wall or slanting wall that collects scraps produced by machining at the machining chamber discharge opening (71); a magazine chamber cover (14) having a magazine chamber discharge opening (15) directly below a tool magazine (50), the magazine chamber cover (14) being formed from a vertical wall or slanting wall that collects scraps falling from the tool magazine (50) at the magazine chamber discharge opening (15); a trough (8) provided spanning from below a machining chamber (R1) to below a magazine chamber (R2), the trough (8) transporting scraps that have fallen from the machining chamber discharge opening (71) together with scraps that have fallen from the magazine chamber discharge opening (15); and a scrap recovery device (9) that recovers the scraps transported by the trough (8).
Patent WO-2019082537-A1 (WO)
Title: Water temperature control method and system
Inventor: HORII SHIGEKI
IPC: G05D23/00
Filed: 2018-09-12
Abstract: The present invention provides, as simply as possible, a system with which it is possible to reduce a heating heat quantity and/or a cooling heat quantity at a delivery source and a heating heat quantity and/or a cooling heat quantity at a use destination. A pure-water temperature control system 1 according to the present invention is provided with: a pure water production plant 10; a pure water utilization plant 20; an outdoor piping 30 for delivering pure water to the pure water utilization plant from the pure water production plant 10; and a delivery source temperature control device 40 for controlling the temperature of the delivery source of pure water at a delivery source target temperature. A data processing server 413 constructs a model for predicting a UA value from past meteorological data of the environs of the outdoor piping and operation record data such as water temperature and flow rate, and then calculates a UA prediction value by inputting, to the model, the most recent meteorological data of the environs of the outdoor piping and the most recent operating data. A heating temperature determination device 42 acquires the delivery source target temperature of pure water in accordance with the UA prediction value and a pure-water use destination target temperature. The heating temperature determination device 42 may be a device that is capable of determining both the heating temperature and the cooling temperature.
Patent WO-2020059120-A1 (WO)
Inventor: FUSEYA YUKIHIRO
IPC: A61M25/06
Filed: 2018-09-21
Abstract: A purpose of the present invention is to provide a dilator wherein a shaft can be moved smoothly during insertion and removal of said shaft into and from a hole or similar of a target object. A dilator 1 that comprises a shaft 11 and a helical protrusion 21, and is characterized in that the shaft 11 has a taper section 112, a distal end section 111, and a body section 113, the helical protrusion 21 is provided on an outer circumferential surface 11a of each of the taper section 112, the distal end section 111, and the body section 113 and has intervals 21a between neighboring sections along the axial direction of the shaft 11, and the height t of the helical protrusion 21 at a first location 211 gradually decreases toward the distal end side and/or the height t of the helical protrusion 21 at a second location 212 gradually decreases toward a proximal end side.
Patent WO-2019059380-A1 (WO)
Title: Frame component, temple, frame, and eyewear
Inventor: Kan Ryuki
IPC: G02C11/00
Filed: 2018-09-21
Abstract: This frame component constituting a frame of eyewear is provided with: a housing having a first surface that has a first recess portion formed therein, and a first hole that opens to the first recess portion; a first device disposed in the first recess portion; and a fastening member inserted into the first hole and fixing the first device to the housing. Through this configuration, a frame component is provided which can reduce the thickness dimension of a portion in which a device is provided.
Patent WO-2019082830-A1 (WO)
Title: Connector, jig, and method for installing terminal to connector
Inventor: MIYAMURA TETSUYA
IPC: H01R13/42
Filed: 2018-10-22
Abstract: This arm connector 10 is provided with an upper retainer 13 and a lower retainer 14 which are installed in a connector housing 12 and can move along a retainer movement direction, crossing a terminal insertion direction, between a temporary locking position in which a terminal is allowed to be inserted into a cavity 15 and a regular locking position in which the retainers are locked to the terminal, thereby fixing the terminal so that the terminal does not fall out, wherein the upper retainer 13 and the lower retainer 14 have an upper cam pin 28 and a lower cam pin 29 which protrude in a pin protrusion direction crossing the retainer movement direction and different from the terminal insertion direction, and the upper cam pin 28 and the lower cam pin 29 are fitted into an upper cam groove 38 and a lower cam groove 39 provided in a jig 30 and move inside the upper cam groove 38 and the lower cam groove 39 such that the upper retainer 13 and the lower retainer 14 move between the temporary locking position and the regular locking position.
Patent WO-2019138642-A1 (WO)
Inventor: FUKUNAGA ATSUSHI
IPC: C08J7/04
Filed: 2018-10-25
Abstract: Un mode de réalisation de la présente invention concerne un procédé de production d'un matériau en feuille oléophobe comprenant les étapes d'application d'une composition de formation de couche oléophobe préparée par dispersion d'une résine fluorée amorphe dans un solvant sur une feuille poreuse et texturation de la feuille poreuse après l'étape d'application, la feuille poreuse ayant un squelette fibreux contenant du polytétrafluoroéthylène en tant que composant principal, et une étape de traitement thermique consistant à chauffer la feuille poreuse sur laquelle est appliquée la composition de formation de couche oléophobe avant ou après l'étape de texturation.
Patent WO-2020089978-A1 (WO)
Inventor: KATO FUMIHIRO
IPC: A63F1/06
Filed: 2018-10-29
Abstract: The present invention detects, with high accuracy, identification information and the number of chips stacked on a gaming table. A processing unit 105 in a chip T outputs, to outside, chip information including user ID and chip ID of the chip T itself by using infrared light emitted from a light emission unit 103. Upon receiving infrared light from another vertically stacked chip T through a light reception unit 104, the processing unit 105 acquires chip information of the other chip T from the received infrared light. When chip information of the other chip T is acquired, the processing unit 105 outputs said chip information together with its own chip information to outside by using infrared light emitted from the light emission unit 103.
Patent WO-2019093460-A1 (WO)
Title: 光導波路及びその製造方法
Inventor: MAEDA SHINGO
IPC: G02B6/122
Filed: 2018-11-09
Abstract: 本発明の一局面は、高屈折率のコア形成層と、前記コア形成層の第一の主面に接合された低屈折率の第一クラッド層と、を備え、前記コア形成層は、その平面方向において、コア部（Ａ）と、コア部（Ａ）の両側方に隣接する側面クラッド部（Ｂ）と、側面クラッド部（Ｂ）の他の側方に隣接する高屈折率部（Ｃ）を有し、コア部（Ａ）は、平面方向において、中央領域と、前記中央領域から側面クラッド部（Ｂ）との界面に向かって屈折率が連続的に低下するＧＩ領域を有し、側面クラッド部（Ｂ）は、屈折率が一定となる領域を有していること特徴とする、光導波路に関する。
Patent WO-2019117161-A1 (WO)
Title: 鋳造装置
Inventor: KANEDA Keishiro
IPC: B22C9/06
Filed: 2018-12-11
Abstract: 鋳造装置は、上部フレームと、下部フレームと、開閉機構と、第１主リンク部材と、第１副リンク部材と、駆動部と、ベースフレームと、退避機構と、を備える。第１主リンク部材は、その中央部に第１回転軸を備える。第１副リンク部材は、第１主リンク部材と平行に配置される。第１副リンク部材は、その中央部に第１軸受を備える。駆動部は、第１回転軸に連結され、第１回転軸を中心に第１主リンク部材を回転させる。ベースフレームは、第２回転軸を有する。第２回転軸は、第１軸受が載置されることにより、第１軸受を介して第１副リンク部材を回転可能に支持する。退避機構は、第１軸受が載置可能な位置から第２回転軸を退避させる。上部フレーム、下部フレーム、第１主リンク部材及び第１副リンク部材が第１平行リンク機構を構成する。
Patent WO-2020129191-A1 (WO)
Inventor: ODA HISANORI
IPC: G01G21/28
Filed: 2018-12-19
Abstract: Provided is a balance with a draft shield having a door that opens and closes smoothly both manually and automatically. Provided is an electronic balance (1) with a draft shield comprising: a balance body (30) having a weighing mechanism connected to a weighing pan (31); a draft shield (10) having a door (11) which can be opened and closed by sliding, the draft shield (10) that covers the weighing pan (31) to form a weighing chamber (6); and an actuator (60) for opening and closing the door (11), wherein the actuator (60) has a double-acting air cylinder (40) having two ports (44, 46) serving as air supply ports, an air pump (62) connected to the two ports (44, 46), two valves (66) interposed between the air pump (62) and the two ports (44, 467) to connect/disconnect the ports (44, 46) to/from the atmosphere, and a control device (34) that controls the two valves (66) so as to connect the two ports (44, 46) to the atmosphere when the air pump (62) is stopped. Switching between automatic opening/closing and manual opening/closing can be performed without any special mechanism, and in both cases, the door (11) of the draft shield (10) can be opened and closed smoothly.
Patent JP-WO2017149566-A1 (JP)
Title: 波長変換装置及び照明装置
IPC: F21S2/00
Filed: 2016-10-06
Abstract: 波長変換装置（１）は、紫外光から可視光までの波長領域のうちの所定の波長の光を発する光源（１１）と、入射面に入射された光源（１１）からの光を波長変換する蛍光体層（１３）と、光源（１１）と蛍光体層（１３）との間に配置され、光源（１１）が発する光をリング状に配向して、蛍光体層（１３）の入射面に入射させる光学部材（１２）とを備える。
Patent JP-WO2017149707-A1 (JP)
Title: スクロール流体機械および冷凍サイクル装置
IPC: F04C18/02
Filed: 2016-03-02
Abstract: スラストプレートの製造時に廃棄される円形の中央部の材料ロスを無くし、製造コストを抑制する。スクロール流体機械は、第１渦巻体が形成された固定スクロールと、上面側に第１渦巻体に対応する第２渦巻体が形成された揺動スクロールと、揺動スクロールの下面側に設けられ、揺動スクロールを揺動自在に支持するスラストプレートと、スラストプレートおよび揺動スクロールが収容されるとともに上部に固定スクロールが設けられたフレームと、を備え、スラストプレートは、一対の円弧状プレートから構成され、一対の円弧状プレートが円環を構成するように配置された。
Patent JP-WO2017159602-A1 (JP)
Title: オキシメチレン共重合体の製造方法
IPC: C08G2/28
Filed: 2017-03-13
Abstract: 本発明は、酸化による劣化が生じ難く、製品からのホルムアルデヒド発生量、特に高温多湿の環境下で長時間保管した際の製品からのホルムアルデヒド発生量が低減し、成形時のモールドデポジットの発生が少ないオキシメチレン共重合体の製造方法を提供する。具体的に、特定量の酸触媒の存在下、トリオキサン及びコモノマーを含む重合原料を反応させる工程１と、前記工程１で得られる生成物に、下記一般式（１）で表されるヒドロキシルアミン化合物を前記酸触媒に対して１〜２０倍モル添加して混合する工程２と、前記工程２で得られる、前記生成物と前記ヒドロキシルアミン化合物の混合物を更に溶融混練する工程３とを含む、オキシメチレン共重合体の製造方法を提供する。（式中、Ｒ１及びＲ２は、特許請求の範囲及び明細書に記載のとおりである。）
Patent JP-WO2017164058-A1 (JP)
Title: 繊維処理剤
IPC: C08F220/06
Filed: 2017-03-16
Abstract: 優れた吸放湿性を付与できるとともに洗濯耐久性に優れる繊維処理剤を提供する。本発明の繊維処理剤は、カルボキシル基含有単量体（ａ）由来の構造単位（Ｉ）と水酸基含有単量体（ｂ）由来の構造単位（ＩＩ）とを有する共重合体（Ａ）を含む。
Patent JP-WO2017168553-A1 (JP)
Title: ナビゲーション装置
IPC: G01C21/34
Filed: 2016-03-29
Abstract: 使用者等が経路上の回避推奨領域等を把握できるとともに、具体的な回避推奨性も把握することができるナビゲーション装置を提供する。ナビゲーション装置（１）は、経路探索部（７ａ）が、目的地までの経路を探索し、通信制御部（２）がサーバ（２）から取得した回避推奨領域情報を格納している回避推奨領域データベース（４）から回避推奨領域情報を取得する。そして、経路探索部（７ａ）が探索した経路上に回避推奨領域に基づいて、表示部（１０）に当該経路上に回避推奨領域が存在する旨の表示を行う。
Patent JP-WO2017168691-A1 (JP)
Title: 表示制御システム、表示制御方法及び表示制御プログラム
IPC: G06F3/0481
Filed: 2016-03-31
Abstract: 表示制御システムは複数のユーザにより視認可能な表示画面の表示制御を行い、ユーザの端末からの表示画面における表示内容の操作を受け付ける、表示制御システムであって、表示画面の表示内容を操作するための接続の要求を第１のユーザにより操作される端末から受け付ける受付手段と、表示画面における第１のユーザのカーソルの表示を接続の時点において許容する表示許容領域を特定する特定手段であって、第２のユーザの端末の操作に基づいて表示されたアイテム情報が表示されている情報表示領域における他のユーザのカーソルの表示の禁止の度合いを示す表示禁止度を取得し、取得した表示禁止度に基づいて、表示許容領域を特定する、特定手段と、表示許容領域に第１のユーザのカーソルを表示させる表示制御手段と、を備える。
Patent JP-WO2017183526-A1 (JP)
Title: 電子ペンおよび電子ペン本体部
IPC: G06F3/03
Filed: 2017-04-12
Abstract: 細型化しても、特に外圧がかかりやすいペン先部分が、曲がったり、折れたりすることのない強度を高めた電子ペンを提供する。芯体部（３０）は、コイル（３１）が巻回されたフェライトコア（３２）と芯棒（３４）とからなる。芯棒（３４）は、フェライトコア（３２）の中心線を含む位置の一端から他端まで固定され、芯棒（３４）の先端部（３４ａ）がフェライトコア（３２）の一端から突出している。フェライトコア（３２）のペン先側にはコイル（３１）が巻回されていない第１のコイル非巻回部（３２ｂ）が設けられている。電子ペンとして使用する場合においては、フェライトコア（３２）の一端から突出している芯棒（３４）の先端部（３４ａ）とフェライトコア（３２）の第１のコイル非巻回部（３２ｂ）の一部が、筐体（２）の開口部（２ｂ）から突出する状態となる。