baber/WOPTO huggingface dataset:
Patent JP-2021511667-A (JP)
Title: 遠隔プラズマ酸化チャンバ用ドッグボーン入口錐体輪郭
IPC: H01L21/316
Filed: 2018-12-26
Abstract: 本開示の実施形態は、広くは、高アスペクト比構造の共形酸化用処理チャンバに関する。該処理チャンバは、第１の側部及び第１の側部とは反対の第２の側部を有するチャンバ本体、及び第１の側部内に配置された流れアセンブリを含む。該流れアセンブリは、流体の流れを処理チャンバの処理領域内に配置された基板の中央から離れるように導くための分流器を含む。分流器は、三日月形の第１の側部、上部、及び下部を含む。処理チャンバは、第２の側部に隣接して位置付けられた分散されたポンピング構造も含む。流れアセンブリは、ラジカルの流れの収縮を低減させるように設計されており、ラジカルの濃度とフラックスの増加をもたらす。【選択図】図２Ｄ
Patent JP-2021517945-A (JP)
Title: スライダ弁及びスライダ弁の使用
IPC: F16K31/50
Filed: 2019-01-18
Abstract: 特に、円型、楕円型、又は平型スライダ構造の、化学設備及び／又は石油化学設備のためのスライダ弁であって、スライダロッド（１２）によって開位置及び閉位置へ動かすことができる遮断装置（１１）と、スライダロッド（１２）を移動調節するための電動モータ（１３）を有する駆動装置と、を備えており、遮断装置（１１）は、２つの遮断プレート（１４，１５）であって、２つの遮断プレートの間に、スライダ弁のハウジングシール座部（１７）に遮断プレート（１４，１５）を圧着するための楔装置（１６）が配置されると共に、スライダロッド（１２）と連結されている２つの遮断プレート（１４，１５）を有しており、駆動装置は、スライダロッド（１２）と並んでいると共に、調節力を伝達するためにスライダロッドと連結されているスピンドル駆動装置（１８）を有する。
Patent JP-2021513407-A (JP)
Title: 医療用レーザー装置及びシステム
IPC: A61B1/00
Filed: 2019-02-08
Abstract: 医療用レーザー装置は、エネルギーガイドと、エネルギーガイドを介して標的組織を治療するためのエネルギーを生成するように構成された第１のエネルギー源、エネルギーガイドを通じて第１及び第２の照準ビームを標的組織に照射するように構成された第２のエネルギー源、第１の照準ビームとは異なる少なくとも１つの特性を有する第２の照準ビーム、及び、ハードウェアを備えるコントローラを含む。コントローラは、標的組織を照射するために内視鏡によって使用される少なくとも２つの照射モードから１つの照射モードを示す信号を受信し、かつ、示された照射モードに基づいて第１または第２の照準ビームを出力するように第２のエネルギー源を制御する。
Patent JP-2021513358-A (JP)
Title: Ｄｎａ、特にセルフリーｄｎａのエピジェネティック解析の方法
IPC: C12Q1/6869
Filed: 2019-02-13
Abstract: セルフリーＤＮＡ中の酸化５−メチルシトシン残基をジヒドロウラシル（ＤＨＵ）残基に変換するために、有機ボランを使用してセルフリーＤＮＡのエピジェネティック解析を行う方法が、提供される。セルフリーＤＮＡは、５−カルボキシメチルシトシンおよび５−ホルミルシトシンなどの酸化５−メチルシトシン残基の還元、脱アミノ化、および脱炭酸を連続的にもたらすように選択された有機ボランと接触し、その代わりにＤＨＵ残基が生成される。増幅後、処理されたセルフリーＤＮＡが、配列決定され、ＤＨＵ残基がチミン残基として読み取られる。セルフリーＤＮＡを含む、ＤＮＡのエピジェネティック解析のための関連する方法と同様に、反応混合物、キット、および追加の方法も提供する。
Patent JP-2021503496-A (JP)
Title: 特発性ポリープ状脈絡膜血管症（ｉｐｃｖ）の処置方法又は予防方法
IPC: A61K48/00
Filed: 2018-11-16
Abstract: Zimura(商標)(又は別の抗C5剤)及びEylea(登録商標)(又は別のVEGFアンタゴニスト)の硝子体内注射を含む、特発性ポリープ状脈絡膜血管症を処置又は予防するための方法が提供される。
Patent JP-2021518036-A (JP)
Title: リチウム二次電池用分離膜及びこれを含むリチウム二次電池
IPC: H01M50/409
Filed: 2019-04-29
Abstract: 本発明は、基材；エポキシ開環反応を介してゲルポリマー電解質と結合され得る第１有機バインダーを含む第１コーティング層；及び第２有機バインダーを含む第２コーティング層；を含み、前記第１有機バインダーは、エポキシ基と開環反応が可能な官能基又はこれらの組み合わせを含み、前記ゲルポリマー電解質は、エポキシ基、エポキシ基と開環反応が可能な官能基又はこれらの組み合わせを含むオリゴマーが重合されて形成されるものであるリチウム二次電池用分離膜及びこれを含むリチウム二次電池を提供する。
Patent JP-2021521293-A (JP)
Title: 硬化性液体ゴム組成物及びその製造方法
IPC: C08L9/00
Filed: 2019-02-25
Abstract: 改善された粘度安定性を有する硬化性液体ゴム組成物が提供される。硬化性液体ゴム組成物は、２５℃で液体であり、重合形態において少なくとも１つのジエンモノマーを含有し、１つ若しくは複数の無水物官能基、１つ若しくは複数のヒドロキシ官能基又は１つ若しくは複数の（メタ）アクリレート官能基で官能基化された、少なくとも１つの官能基化された架橋性ポリマー；２５℃で液体であり、重合形態において少なくとも１つのジエンモノマーを含有し、無水物、ヒドロキシ又は（メタ）アクリレート官能基で官能基化されていない、少なくとも１つの官能基化されていない架橋性ポリマー；少なくとも１つの（メタ）アクリレート官能基を含有する金属カルボン酸塩である、少なくとも１つの金属モノマー架橋助剤；及び少なくとも１つの無機充填剤を含む。硬化性液体ゴム組成物は、１０００ｐｐｍ以下の合計の水分含有量を有し、それに従って水の量を制御することは、経時的に粘度の増加を示す組成物の傾向を減少させる。
Patent JP-2021526236-A (JP)
Title: 光視野均一性の改善のための光学システムと方法
IPC: G02B27/02
Filed: 2019-05-22
Abstract: 観察者によって見られる画像を生み出すための表示装置（１０）は、光学システム（１４）および制御ユニット（２０）を含む。前記光学システムは光伝播チャネル（１４Ａ）の中への画像を示す入力光を受け取り、出口瞳孔（１４Ｂ）において、観察者（１８）に提示される画像に対応する視界（ＦＯＶ）を有する出力光を生み出す。前記光伝播チャネルは、出口瞳孔の横方向の寸法ｘを横切った光学システムの強度伝達関数マップＩ１（ｘ、φ）およびＦＯＶの角度（２０）のスパンφを有する。前記制御ユニット（２０）は、画像データを修正し、前記画像データは光学システムの強度伝達関数マップＩ１（ｘ、φ）の中の強度非均一性を少なくとも部分的に補償する較正強度マップに基づいた輝度変調をそれに適用することにより光学システム中の入力部となる。【選択図】図１
Patent JP-2021527421-A (JP)
Title: Ｃｄ３７及びｃｄ１９を標的とするキメラ抗原受容体
IPC: A61P35/02
Filed: 2019-06-21
Abstract: 本発明は、ＣＤ３７及びＣＤ１９を標的とする二重特異性キメラ抗原受容体（ＣＡＲ）、並びに関連する分子、それを含む免疫細胞、その組成物、及びそれらの使用方法を提供する。本発明は、疾患又は障害、例えばがんを治療するための方法をさらに提供する。 【選択図】なし
Patent JP-2021054410-A (JP)
Title: Flying body with main body part extending in long shape
Inventor: SUZUKI YOICHI
IPC: B64D27/24
Filed: 2021-01-12
Abstract: To provide a flying body such that a work part can be put closer to a proper distance to a work object.SOLUTION: A flying body according to the present invention comprises: a flying part at least comprising a plurality of rotary vanes and a motor for driving the rotary vanes; a main body part extending in a long shape in a vertical direction; and a connection part connecting the flying part and main body part in a mutually displaceable state. A vertical overall length of the main body part of the flying body is twice or more as long as a maximum diameter of the flying part in a horizontal direction. The main body part has an upper part above the connection part and a lower part below the connection part, and a length of the upper part is three times or more as long as a length of the lower part.SELECTED DRAWING: Figure 1
Patent JP-2022109764-A (JP)
Title: Parking assist method and parking assist device
Inventor: HOSHINO MASASHI
IPC: B60W30/06
Filed: 2021-01-15
Abstract: To provide a parking assist method in a parking assist system and a parking assist device capable of performing self-position estimation for a vehicle by maintaining high accuracy even if a change of a circumference environment occurs when performing automatic parking.SOLUTION: A parking assist method used for a parking support system that estimates a self position of a vehicle from map information existing around the vehicle and performing parking assistance on the basis of the self position, includes the steps of: acquiring map information existing around the vehicle in a first parking and a second parking performed after the first parking; and if first map information in the first parking and second map information in the second parking are different, displaying difference information indicating a difference between the first map information and the second map information.SELECTED DRAWING: Figure 1
Patent JP-2021190990-A (JP)
Title: Steering holding sensor and holding detection method
Inventor: NOZOE TOSHIYUKI
IPC: B62D1/06
Filed: 2021-01-20
Abstract: To provide a steering holding sensor which suppresses deterioration of inspection accuracy, and improves the inspection accuracy.SOLUTION: A steering holding sensor 100 comprises: a planar driven electrode 113 along a rim of a steering; a planar sensor electrode 112 opposite to the driven electrode 113; a sine wave generation part 41 supplying a sine wave voltage to the driven electrode 113; a charge amplifier 44 including a feedback capacitive element C11, detecting the change of a charging amount generated by an electrostatic capacitance of the sensor electrode 112, and outputting the change of the electric charge amount as the change of a voltage; a multiplication processing part 52 multiplying the sine wave voltage and an output voltage of the charge amplifier 44; an integrator 54 smoothing a multiplication result of the multiplication processing part 52 by integrating; and a holding determination part 56 determining the presence/absence of holding to a steering in accordance with a level of the multiplication result to be smoothed.SELECTED DRAWING: Figure 4
Patent JP-2022111850-A (JP)
Title: game machine
Inventor: TANAKA MASAYA
IPC: A63F7/02
Filed: 2021-01-20
Abstract: To provide a game machine capable of performing simple display control processing.SOLUTION: At a time of a power failure restoration, a presentation control device can display a display of the number of times of reaching a ceiling by means of receiving a predetermined command from a game control device. The presentation control device disposes a power failure restoration screen on a display layer L2, and disposes a screen displaying the display of the number of times of reaching a ceiling on a display layer L1 positioned on the front side of the display layer L2. In this manner, the presentation control device displays a display screen 1214 with the display layers L1 and L2 overlapped. In addition to the power failure restoration screen, the display screen 1214 can display the display of the number of times of reaching a ceiling.SELECTED DRAWING: Figure 193
Patent JP-2022114472-A (JP)
Title: Direct teaching device and direct teaching method for robot
Inventor: TAWARA TETSUYA
IPC: B25J9/22
Filed: 2021-01-27
Abstract: To achieve both teaching accuracy and operational feeling of arms.SOLUTION: A direct teaching device for a robot includes: a slave control operation section 103 for calculating a slave control command value; a restraint control operation section 108 for calculating a restraint control command value; a restraint control adjustment section 107 capable of adjusting the speed of the motions of arms 2 calculated by the restraint control operation section 108 continuously or gradually in at least three or more steps; a synthesis section 109 for synthesizing a calculation result by the slave control operation section 103 and a calculation result by the restraint control operation section 108; and a drive control section 110 for driving the arms 2 based on a synthetic result by the synthesis section 109.SELECTED DRAWING: Figure 1
Patent JP-2022114635-A (JP)
Title: reversible color change paper craft
Inventor: ASAI NAO
IPC: A63H33/00
Filed: 2021-01-27
Abstract: To provide a reversible thermal color change paper craft being rich in amusement and having an improved commercial value, since a complicated color change can be provided by a temperature change.SOLUTION: There is provided a reversible thermal color change paper craft 1 that is formed to be a three-dimensional model from a paper craft base material 2 formed of paper, synthetic paper, a resin sheet or the like. The reversible thermal color change paper craft 1 is provided with reversible thermal color change layers 5 including a reversible thermal color change material on a base material surface at a position where a sticking margin 3 of the paper craft base material is bonded and a base material surface at a position where the sticking margin is not bonded.SELECTED DRAWING: Figure 4
Patent JP-2022118564-A (JP)
Title: Fuel reforming method and fuel reforming device
Inventor: MIYASHITA HIROYUKI
IPC: C10L5/48
Filed: 2021-02-02
Abstract: To provide a fuel reforming device that can smoothly reform a raw material into a fuel, and can effectively utilize waste as the fuel, wherein the raw material comprises: a carbon fiber reinforced plastic containing a thermosetting resin derived from the waste; and a thermoplastic resin.SOLUTION: A fuel reforming device 100 comprises a heating part 20 that heats and reforms a raw material by heating to a temperature range of 300 to 450°C in an atmosphere with an oxygen concentration of 13% by volume or less, wherein the raw material contains at least one selected from a group consisting of waste (A) comprising carbon fiber reinforced plastic containing thermosetting resin, a combination of the waste (B1) comprising the carbon fiber reinforced plastic containing the thermosetting resin, and a feedstock (B2) comprising a thermoplastic resin, and a compound (C) comprising the waste (B1) and the feedstock (B2).SELECTED DRAWING: Figure 1
Patent JP-2022120655-A (JP)
Title: Hose with joint
Inventor: KASAHARA MASAJI
IPC: F16L37/086
Filed: 2021-02-05
Abstract: To provide a hose with a joint capable of making it hard to collapse a double-wound state.SOLUTION: A hose 100 with a joint includes a receiving fitting 20 equipped with a claw retractable inward, an insertion fitting 10 equipped with an annular recessed portion 10g capable of engaging with the claw, and a hose H to which the receiving fitting 20 and the insertion fitting 10 are respectively attached to one end and the other end. The insertion fitting 10 has a cylindrical body 11, and a cylindrical push ring 12 surrounding the cylindrical body slidably and rotatably with respect to the cylindrical body. The push ring 12 is equipped with a flange 12a at one end. The flange is equipped with two bulging portions 13 and 14 opposite to each other, and two notch portions 15 and 16 provided at positions orthogonal to the two bulging portions around an axis O2 of the push ring and oppose to each other. The two notch portions are formed to have narrower width as compared with the two bulging portions. One or both of the two notch portions are provided with a slip-preventive means.SELECTED DRAWING: Figure 1
Patent JP-2022123325-A (JP)
Title: Grinder
Inventor: HATTORI MASATO
IPC: B24B7/04
Filed: 2021-02-12
Abstract: To make grinding marks of three or more grinding mechanisms provided in a grinder cross one another.SOLUTION: A second grinding mechanism is arranged on a chuck table 50 such that a second grinding mark 452 of a wafer 5 generated by grinding with a second grinding wheel intersects a first grinding mark 451 of the wafer 5 in a second grinding step, Further, a third grinding mechanism is arranged on the chuck table 50 such that a third grinding mark 453 of the wafer 5 generated by grinding with a third grinding wheel intersects the second grinding mark 452 of the wafer 5 in a third grinding step. Thereby, the wafer 5 is ground such that the first grinding mark 451 is scraped off in the second grinding step, and the wafer 5 is ground such that the second grinding mark 452 is scraped off in the third grinding step. Accordingly, the wafer 5 of high quality having high flexural strength can be obtained.SELECTED DRAWING: Figure 3
Patent JP-2022125423-A (JP)
Title: game machine
Inventor: TAGAWA YUMA
IPC: A63F7/02
Filed: 2021-02-17
Abstract: To provide a game machine having high functionality.SOLUTION: There are provided a first movable body, and a second movable body provided in the first movable body. The first movable body can be operated from a first position to a second position. When the first movable body is in the first position, the second movable body cannot be operated relative to the first movable body. When the first movable body is in the second position, the second movable body can be operated relative to the first movable body. An operation mode of the second movable body is a linear operation.SELECTED DRAWING: Figure 322
Patent JP-2022126451-A (JP)
Title: Pressure regulating unit for bag filter
Inventor: FURUOYA MASAHIRO
IPC: B01D46/04
Filed: 2021-02-18
Abstract: To provide a pressure regulating unit for a bag filter being installed for pressure regulation of a pulse jet in a backwash operation at a cell plate attachment part of the bag filter and capable of obtaining an expected secondary air increase effect without requiring installation of a venturi and without requiring excessively high installation accuracy.SOLUTION: In a pressure regulating unit for a bag filter, a pressure regulating member 34 is disposed so as to form an annular passage 38 facing a jetting port 30 of compressed air for a backwash operation and being narrowed toward a closed bottom surface side of the bag filter between an inner periphery of the bag filter 12 in a cell plate attachment part of the bag filter 12; the pressure regulating member 34 has a shape to be a halved spherical shell; the pressure regulating member 34 is fixed and mounted with a stay 42 on a cell plate surface; the jetting port 30 is disposed so as to face a spherical surface 34-1 of the pressure regulating member 34; and air jet from the jetting port 30 is introduced into the annular passage 38 via the spherical surface 34-1 while accompanying outside air.SELECTED DRAWING: Figure 2
Patent JP-2022128994-A (JP)
Title: Conceptional mediation system and conceptional mediation method
Inventor: TANI YASUAKI
IPC: G06Q50/10
Filed: 2021-02-24
Abstract: To provide a conceptional mediation system and a conceptional mediation method for supporting use of ideas.SOLUTION: A management server 20 comprises a conceptional information storage unit 23 to store conceptional information including a conceptional outline and a conceptional detail by a user, an existing information storage unit 24 to record the existing information, and a control unit 21 connected to a first terminal 11 and to a second terminal 12. The control unit 21 acquires the conceptional information including the conceptional outline and the conceptional detail from the first terminal 11, records the same in the conceptional information storage part 23, publishes the conceptional outline to the second terminal 12, acquires the existing information corresponding to the conceptional information from the second terminal 12, records it in the existing information storage part 24, provides the conceptional detail of the conceptional information to the second terminal 12 in accordance with a detail request from the second terminal 12, and outputs the result of determination of the identity of the conceptional information and the existing information to the second terminal 12 in response to an identity confirmation request from the second terminal 12.SELECTED DRAWING: Figure 1
Patent JP-2022132784-A (JP)
Title: Wind power generator and liquid hydrogen production ship
Inventor: HIDAKA NAGAFUMI
IPC: C25B9/00
Filed: 2021-03-01
Abstract: To provide a wind power generator that can withstand strong wind.SOLUTION: A cylindrical casing 2 provided with a wind intake window 7 and a wind outlet 8 contains a rotor shaft 4 to rotate around the center line of the cylindrical casing 2. The rotor shaft 4 is fixed with three or more plate-like wind-receiving vanes 6 that receive the force of the wind taken in through the wind intake window 7 to rotate the rotor shaft 4. The rotating rotor shaft 4 is, directly or via a power transmitter, coupled to a motor for power generation to generate power.SELECTED DRAWING: Figure 3
Patent JP-2021173751-A (JP)
Title: Medical image processing apparatus and medical image processing method
Inventor: LI YANG
IPC: G01T1/161
Filed: 2021-03-01
Abstract: To improve image quality.SOLUTION: A medical image processing apparatus according to an embodiment comprises an acquisition unit, a first creation unit, a reconstruction unit, and a second creation unit. The acquisition unit acquires a plurality of dynamic sinograms, the dynamic sinograms each representing detection events of gamma rays in a plurality of detector elements. The first creation unit sums up the plurality of dynamic sinograms to create an activity map based on the radioactivity level of the gamma rays. The reconstruction unit reconstructs, by using the plurality of dynamic sinograms, a plurality of dynamic images, the plurality of dynamic images each corresponding to one of the plurality of dynamic sinograms. The second creation unit creates at least one parametric image by using the plurality of dynamic sinograms and the activity map.SELECTED DRAWING: Figure 3B
Patent JP-2022137747-A (JP)
Title: Dam water storage volume adjustment system and dam water storage volume adjustment method
Inventor: ITO TOSHIAKI
IPC: G05D9/12
Filed: 2021-03-09
Abstract: To secure a water storage amount in advance based on an unexpected rainfall forecast and to prevent water shortage after the rainfall even when the forecast is inaccurate.SOLUTION: The present invention relates to a dam water storage volume adjustment system 1 that links a water purification plant 30 with a dam 2 for preventing flooding in a watershed of the dam. The dam comprises: a discharge unit 4 that adjusts a discharge amount of stored water to be discharged into a river on the downstream side in preparation for the flood season; and a dam management device 20 that monitors the water level of the stored water in the dam and controls the discharge unit to adjust the water level. The water purification plant 30 comprises: a water intake unit 32 that adjusts a water intake amount for taking river water from the river; a clean water supply unit 36 that supplies clean water secured in another water purification plant 35; and a water purification plant management device 40 that controls the water intake unit and the clean water supply unit.SELECTED DRAWING: Figure 2
Patent JP-2022138399-A (JP)
Title: Yellow discoloration prevention treatment of wool fiber, clear dyeing treatment, and imparting method of washing resistance
Inventor: UMEHARA AKIRA
IPC: D06P3/16
Filed: 2021-03-10
Abstract: To impart washing resistance by improving shrink-resistance in an environment-friendly processing method; and to provide a yellow discoloration and clear dyeing treatment method of wool fibers for obtaining a light-proof and highly-clear product.SOLUTION: A yellow discoloration and clear dyeing treatment method of wool fibers to which washing resistance is imparted is characterized as follows: a synthetic polymer is coated on wool fibers to which a bleaching treatment is applied, and an impregnation treatment of UV absorber is applied to the synthetic polymer.SELECTED DRAWING: Figure 3
Patent JP-2022140109-A (JP)
Title: Information processing device, information processing method and program
Inventor: OKU HIROYUKI
IPC: H04M3/523
Filed: 2021-03-12
Abstract: To provide a call center which is highly satisfactory to both a service provider and a user.SOLUTION: In a call center of a transaction support system 100, a control server of a call control system comprises a call control part which has a sensing part that senses a call having a first telephone number as a destination and a transfer control part that controls transfer of the call sensed by the sensing part to an operator terminal 132. The transfer control part determines an order in which the call is transferred to the operator terminal, on the basis of cumulative values of past stand-by times of a user terminal 102 requesting the call. The transfer control part determines the order so that the order in which the call is transferred to the operator terminal becomes smaller as cumulative values of past stand-by times of the user terminal requesting the call are larger.SELECTED DRAWING: Figure 1
Patent JP-2022008003-A (JP)
Title: Oil well pipe connection structure, and oil well pipe
IPC: F16L15/04
Filed: 2021-03-12
Abstract: PROBLEM TO BE SOLVED: To provide means of connecting oil well pipes with a simple structure, so as to fit within the inner and outer diameters of the oil well pipe and to have strength significantly exceeding the limit of conventional arts without increasing the size. 
     SOLUTION: An oil well pipe connection structure comprises a second oil well pipe 1A capable of being connected to the first oil well pipe 1. A male thread part has: a first male screw part 12 with a predetermined diameter; a second male screw part 14 having a substantially tapered shape, which is arranged on one end side with respect to the first male screw part and gradually reduces in diameter toward the one end side; and a third male screw part 16 which is arranged on one end side with respect to the second male screw part and has a predetermined diameter. A female screw part has: a first female screw part 22 arranged on an opening end side and having a predetermined diameter; a second female screw part 24 having a substantially tapered shape, which gradually reduces in diameter from the first female screw part side to a depth side; and a third female screw part 26 which is arranged on the depth side with respect to the second female screw part and has a predetermined diameter. 
     SELECTED DRAWING: Figure 7 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2022140882-A (JP)
Title: Exterior structure and wire harness provided with exterior structure
Inventor: MIYOSHI TAKANOBU
IPC: H02G3/04
Filed: 2021-03-15
Abstract: To firmly protect an internal electric wire by keeping the abutting ends of adjacent divided bodies in a united state such that the divided bodies are not separated from each other.SOLUTION: A tubular body 2 surrounding an electric wire 3 has a pair of divided bodies 4 divided in the circumferential direction, engagement portions 11 and 21 are respectively provided in two abutment portions 5A and 5B where the ends of a pair of divided bodies 4 adjacent in the circumferential direction butt against each other, the engagement portions 11 and 21 are configured by an engagement piece 11 provided at one end and an engaged piece 21 provided at the other end of the first abutment portion 5A of the pair of divided bodies 4 so as to be engageable in the circumferential direction, and in the second abutment portions 5B of the pair of divided bodies 4, the engagement piece 11 provided at one end and the engaged piece 21 provided at the other end is configured so as to be engaged in the circumferential direction.SELECTED DRAWING: Figure 1