baber/WOPTO huggingface dataset:
Patent JP-2019508159-A (JP)
Title: 真空掃除機ブラシアセンブリ
IPC: A47L9/04
Filed: 2017-03-08
Abstract: 【課題】 吸引及び吸込領域に利用可能な電力が低減した真空掃除機を効果的な清掃に供するブラシアセンブリの必要性が存在する。加えて、当技術分野では、容易に取り外して交換することができるブラシアセンブリが必要である。【解決手段】 本発明は、吸引及び吸込領域が低減した効果的な清掃をもたらすブラシアセンブリを有する、本発明の実施形態による真空掃除機装置を対象とする。ブラシアセンブリは、空洞を画定する外面及び内面を備えたブラシコアを有する。ブラシコアは、ハウジングによって画定された吸込領域内に回転可能に懸架される。空洞内の軸受によって、ブラシコアは、軸受を介しハウジングに対して回転することができる。ほこり及び他のごみを撹拌するように、ブラシコアの外面から半径方向に複数の撹拌器が延びる。そして、モータは、ブラシコアの内面によって画定された空洞内に配置される。モータは、ブラシコアがモータに対して回転できるように、ハウジングに取り付けられ、また、モータは、ブラシコアをモータの周りにおいて回転駆動させるように構成される。
Patent JP-2019526945-A (JP)
Title: ローカルコンセンサスを設定するための方法と装置およびコンピュータ可読記憶媒体
IPC: H04L9/32
Filed: 2018-03-07
Abstract: 本発明は、ブロックチェーンに基づくローカルコンセンサスを設定するための方法を開示する。当該方法は、複数のノードの初期化を実現するステップと、複数のノードから選択された１組のノードに対してローカルコンセンサスのインスタンスを作成するステップとを含む。本発明は更に、対応するコンピュータ可読記憶媒体およびブロックチェーンに基づくローカルコンセンサスを設定するための装置を開示する。当該装置は初期化モジュールとローカルコンセンサス設定モジュールを含む。初期化モジュールは、複数のノードの初期化を実現するように構成される。ローカルコンセンサス設定モジュールは、複数のノードから選択された１組のノードに対してローカルコンセンサスのインスタンスを作成するように構成される。本発明に係るブロックチェーンに基づくローカルコンセンサスを設定するための方法によっては、ブロックチェーンを構成する複数のノードから一部の関連ノードを選択することができる。これにより、選択されたノード間にはローカルコンセンサスのインスタンスが作成される。そして、ローカルコンセンサスのインスタンスは、所望のコンセンサスアルゴリズムを選択して実現されるように保証し、ネットワークサービスを最適化し、ネットワークサービスの品質を向上させる。
Patent JP-2019516122-A (JP)
Title: 高解像度及び高アスペクト比を有するＫｒＦレーザー用ネガ型フォトレジスト組成物
IPC: C08G8/18
Filed: 2017-03-22
Abstract: 本発明は、高解像度及び高アスペクト比を有するＫｒＦレーザー用ネガ型フォトレジスト組成物に関し、より詳しくは、従来のネガ型フォトレジストの物性を改善するために特定の添加物を含ませることにより、従来のネガ型フォトレジストに比べて、短波長露光源においても微細パターンの倒れを防止することができるうえ、高解像度及び高アスペクト比を実現することが可能な半導体プロセスへの適用に適した、ＫｒＦレーザー用ネガ型フォトレジスト組成物を提供する。
Patent JP-2019510864-A (JP)
Title: 自己構造化界面活性剤系を含有する安定な液体洗剤組成物
IPC: C11D1/94
Filed: 2016-04-06
Abstract: 自己構造化界面活性剤系を含有する安定な液体洗剤組成物が提供される。外部構造化剤を使用せずに、液体洗剤組成物は、高剪断下で安定性を維持しながら良好な剪断減粘特性を示す。液体洗剤組成物は、直鎖アルキルベンゼンスルホネートと、双性イオン性及び／又は両性の界面活性剤と、所望によりポリエチレングリコールとを含む。
Patent JP-2019511230-A (JP)
Title: 細胞を培養するための容器
IPC: C12N1/00
Filed: 2017-04-12
Abstract: 本発明の側面は、細胞培養容器と、懸濁液中の細胞を撹拌および維持するためにこの容器を使用する方法とに関する。いくつかの実施形態では、容器は、培養されるべき細胞を含む所定の体積の液体を保持するように構成される本体を有し、この容器本体は、懸濁液中の細胞を維持するために十分な液体の移動を誘発するように配列される、変形可能部分を有する。いくつかの実施形態では、変形可能部分は、容器本体の基部および側壁のうちの少なくとも１つ内にある。いくつかの実施形態では、変形可能部分は、変形可能パターンに従って変形される。いくつかの実施形態では、変形可能部分は、変形可能部分に接触する１つまたはそれを上回る可動部材を有する変形プレートを介して変形される。
Patent JP-2019517912-A (JP)
Title: 高表面積材料を有する触媒濾過媒体及びそれを作る方法
IPC: B01J35/02
Filed: 2017-05-03
Abstract: 耐高温無機繊維と、少なくとも１つの結合剤と、少なくとも１つの高表面積触媒支持材料とを含む強化触媒担持機能を有する触媒フィルタ。同じく、少なくとも１つの高表面積触媒支持材料を有する触媒フィルタを作る方法。【選択図】図２
Patent JP-2019524525-A (JP)
Title: 検出された駐車車両の特性に基づくホスト車両の制御
IPC: G01C21/34
Filed: 2017-06-27
Abstract: 自律車両をナビゲートするためのシステム及び方法が提供される。一実施形態は、ドアが開く事象を検出することに基づいてホスト車両をナビゲートするためのシステム及び方法に関する。別の実施形態は、ホスト車両が走行しているレーンの方への標的車両の移動に基づいてホスト車両をナビゲートするためのシステム及び方法に関する。第３の実施形態は、ホスト車両が走行する道路が一方通行道路であるかどうかを検出するためのシステム及び方法に関する。第４の実施形態は、ホスト車両の環境内の駐車車両の予測状態を求めるためのシステム及び方法に関する。第５の実施形態は、２つの停止車両間の間隔に基づいてホスト車両をナビゲートするためのシステム及び方法に関する。
Patent JP-2019527869-A (JP)
Title: 長残光放出を利用してセキュリティマークを認証する方法及び１つ以上の残光化合物を含むセキュリティマーク
IPC: G01N21/64
Filed: 2017-07-05
Abstract: 本発明は、所与の波長領域の長残光発光を放出可能な長残光化合物を含むセキュリティマークを認証する方法であって、本物の長残光化合物の基準量値を表す対応基準値に対する波長領域内の放出光のスペクトル成分の初期測定強度値及び関連する残光時間の比較に基づいて、前記長残光化合物の有無及び量を検出可能である、方法に関する。また、本発明は、この方法の各ステップを実行するように動作可能なリーダ及びシステムに関する。【選択図】 図６
Patent JP-2019527543-A (JP)
Title: 抗ｐｄ−１抗体、その産生方法及びその使用方法
IPC: C12N15/62
Filed: 2017-07-04
Abstract: 本発明は、バイオテクノロジーに関し、高親和性でＰＤ−１に特異的に結合する単離されたモノクローナル抗体、特にヒトモノクローナル抗体を含む。本発明による抗体は、キメラ、ヒト化又はヒト抗体又はその抗原結合断片であってもよく、種々の細胞増殖又は発達障害に関連する疾患を処置するための腫瘍学及び免疫腫瘍学における医薬として使用することができる。本発明はまた、前記抗体を産生するための方法、及び前記抗体を用いてヒト疾患を処置するための方法に関する。
Patent JP-2019525792-A (JP)
Title: 健康装置及びウェアラブル／埋め込み型装置のための方法及び装置
IPC: A61B5/08
Filed: 2017-06-22
Abstract: センサを含むウェアラブル装置又は埋め込み型装置の電力管理のための方法であり、センサは、ユーザの生理学的情報を提供するために構成され、センサは、第１電力モード及び第２電力モードを含む少なくとも２つの電力モードで動作するように更に構成され、第１電力モードでは、ユーザの生理学的情報が収集され、第２電力モードでは、センサは、第１電力モードよりも少ない電力を消費し、当該方法は：ユーザの健康状態を治療するように構成される健康装置が使用中であるかどうかを示す信号を受け取るステップであって、健康装置が、ユーザに対してウェアラブル装置又は埋め込み型装置とは異なる位置に配置されているステップと、信号に基づいて、ある持続時間の間、センサを第１電力モードで動作させるステップと、その後センサを第２電力モードで動作させるステップとを備える。
Patent JP-2019512368-A (JP)
Title: 睡眠時無呼吸症の検出装置
IPC: A61B5/113
Filed: 2017-03-14
Abstract: 本発明は、睡眠時無呼吸症の検出方法及び装置を開示し、その方法は、人間の睡眠中の体動信号を取得し、吸気時に発生する吸気信号と呼気時に発生する呼気信号とを含む人間の呼吸信号を識別することと、吸気信号に重畳されている所定範囲の周波数を有する第１の体動信号の強度と、吸気信号に隣接する呼気信号に重畳されている所定範囲の周波数を有する第２の体動信号の強度とを取得することと、第１の体動信号の強度と第２の体動信号の強度を既定の方法により比較し、比較結果に基づいて、人間がいびき状態であるか否かを判断することとを含む。本発明は、呼吸動作と同期して検出することにより、咳、喋り、及び空気中を伝播する音声信号などによる妨害を回避することで、睡眠時無呼吸症の判断精度を大きく向上させる。また、本発明に係る方法及び装置を実現するには、従来の睡眠センサからソフトウェアの変更を行うだけでよく、ハードウェアを増設する必要がない。
Patent JP-2019142483-A (JP)
Title: Seat belt tensioner having inner pipe diameter with step
Inventor: CHRISTIAN FISCHER
IPC: B60R22/46
Filed: 2019-01-03
Abstract: To provide a seat belt tensioner which achieves further equal force transmission of a mass body to a tensioner driving wheel even after a long period passed after attachment.SOLUTION: At least one mass body (4) can be driven by a gas generator (10), and when the mass body comes out from a pipe (1), the mass body is engaged to a tensioner driving wheel by a method for transmitting force and drives a belt shaft of a seat belt retractor in a tensioning direction. The pipe comprises a reception section (5) having a first inner diameter, a piston (3) in an initial state is arranged in a state of having an initial outer diameter (8) before ignition of the gas generator, and the pipe is adjacent to the reception section. The piston has a guide section (6) having a second inner diameter by being driven after ignition of the gas generator, the second inner diameter is smaller than the first inner diameter and is smaller than an outer diameter of the piston in the initial state.SELECTED DRAWING: Figure 1
Patent JP-2019051420-A (JP)
Title: Game machine
Inventor: ICHIHARA TAKAAKI
IPC: A63F7/02
Filed: 2019-01-10
Abstract: To provide a game machine capable of maintaining amusement of games.SOLUTION: A game machine includes: a main control device which performs a lottery on the basis of an establishment of a prescribed condition and which can control a game on the basis of a result of the lottery; and a presentation control device which performs a presentation for the game and which performs a dynamic display on the basis of the result of the lottery. The main control device at least can input, as commands, the establishment of the prescribed condition and the result of the lottery to the presentation control device. The presentation control device includes a command analysis unit for analyzing the command inputted from the main control device and a presentation performance unit capable of performing a presentation by combining presentation blocks where presentation to be performed in a prescribed period are defined, on the basis of the result of the analysis by the command analysis unit.SELECTED DRAWING: Figure 1
Patent JP-2020119399-A (JP)
Title: Presentation support system
Inventor: SEKINE KIYOSHI
IPC: G06F16/30
Filed: 2019-01-25
Abstract: To provide a presentation support system capable of dynamically varying presentation materials in accordance with terms used in a presentation.SOLUTION: A presentation support system 1 includes a presentation materials storage part 3, a related word storage part 5 for storing a plurality of related words related to presentation materials, a subsequent information storage part 7 for storing information on subsequent related words being one or more related words desired to be used next about each of the related words, a related word analysis part 11 for analyzing whether a word analyzed by a term analysis part 9 is any of the related words, and a subsequent related word selection part 15 for selecting a subsequent related word from the subsequent information storage part 7 by using information on an analysis related word being a related word analyzed by the related word analysis part 11.SELECTED DRAWING: Figure 1
Patent JP-2020117156-A (JP)
Title: In-wheel motor
Inventor: SUZUKI YUJI
IPC: B62D25/18
Filed: 2019-01-25
Abstract: To provide an in-wheel motor in which cooling efficiency of a motor and cooling efficiency of a braking device by air are improved.SOLUTION: The in-wheel motor is provided in which a motor 11 and a braking device 30 are arranged inside a wheel 21, the in-wheel motor comprises a shutter mechanism 70 taking in air from the inside in a vehicle width direction of a vehicle to the outside. The shutter mechanism 70 has a first shutter 71A and a second shutter 71B that can open and close independently from each other. The first shutter 71A takes in air toward an in-wheel motor unit 10, whereas the second shutter 71B takes in air toward the braking device 30. The first shutter 71A opens when the motor temperature is equal to a first setting temperature or higher, and closes when the motor temperature is less than the first setting temperature. The second shutter 71B opens when the brake temperature is equal to a second setting temperature or higher, and closes when the brake temperature is less than the second setting temperature. In the in-wheel motor, the first setting temperature is set to be lower than the second setting temperature.SELECTED DRAWING: Figure 4
Patent JP-2020116293-A (JP)
Title: Washing machine
Inventor: KAWASE NAOKI
IPC: D06F39/00
Filed: 2019-01-28
Abstract: To provide a washing machine which improves the strength of a hinge structure of a lid body, and which facilitates an opening/closing operation.SOLUTION: A hinge structure 700 for pivotally supporting at a rear part a lid body 600 which openably/closably covers an input port 255 from which laundry is inputted, is provided across the width in the rear part of the lid body 600, and disposed in a space formed by a top wall 250 and a cover member 400 below an operation part 500 operable from the front side irrespective of the opening/closing state of the lid body 600. When the lid body 600 is opened/closed, the opening force is assisted by a left spring component 760 and a right spring component 770 provided at the hinge structure 700, and the closing speed is attenuated by a plurality of damper structures 780. With this constitution, even when the lid body 600 becomes heavy, the destruction of the hinge structure 700 is prevented and the opening/closing operation can be facilitated by increasing the strength of the hinge structure 700 supporting the lid body 600.SELECTED DRAWING: Figure 4
Patent JP-2019185018-A (JP)
Title: Method for manufacturing polarizer
Inventor: HAGIWARA ASAMI
IPC: G02B5/30
Filed: 2019-01-31
Abstract: To provide a method for manufacturing a polarizer, by which a polarizer having excellent optical characteristics can be obtained.SOLUTION: In the method for manufacturing a polarizer, a polarizer is obtained by subjecting a polyvinyl alcohol film to at least steps of dyeing, crosslinking and stretching and then successively to steps of cleaning and drying. The drying step includes a step of drying while stretching the polyvinyl alcohol film in a conveyance direction of the polyvinyl alcohol film. The polyvinyl alcohol film satisfies a condition represented by expression (1) y>x, where x represents a total stretching magnification of the film after the cleaning step and y represents a total stretching magnification after the drying step.SELECTED DRAWING: Figure 1
Patent JP-2020124985-A (JP)
Title: Interior component
Inventor: OIKE HIDEKAZU
IPC: B60R7/04
Filed: 2019-02-04
Abstract: To provide an interior component which can reliably fix a peripheral edge part of a skin material to an outer wall inner surface of a core material without using a tacker or adhesive and has no risk of generating abnormal sound.SOLUTION: An interior component includes a core material 10 provided with an outer wall 13 around, a skin material 11 which covers the surface, and an inner lid 30 fitted onto a rear surface of the core material 10. A peripheral edge part of the skin material 11 is sewn on by an astragal core material 20 surrounding an outer periphery of a shaft core 21 with a tape 22, and inside an outer wall of the core material 10, a reception groove 18 in which the astragal shape core material 20 is inserted is formed. The peripheral edge part of the skin material 11 is folded and inserted in the reception groove 18 together with the astragal shape core material 20, and the astragal shape core material 20 is pressed at an end part of the inner lid 30 inside the reception groove.SELECTED DRAWING: Figure 6
Patent JP-2020127119-A (JP)
Title: Electronic device, electronic device control method, and electronic device control program
Inventor: NONAKA MISAKI
IPC: H04M1/00
Filed: 2019-02-04
Abstract: To provide an electronic device that is automatically turned on when the electronic device is attached to a human body.SOLUTION: A wearable speaker 1 includes a proximity sensor 6 to detect proximity, a proximity sensor 7 to detect proximity, and a SoC 2 that turns on a power source of the wearable speaker 1 in a case in which the proximity sensor 7 detects the proximity after the proximity sensor 6 has detected the proximity when the wearable speaker 1 is in the standby state. Specifically, in the SoC 2, when the wearable speaker 1 is in the standby state, after the proximity sensor 6 has detected the proximity, the proximity sensor 7 detects the proximity, and when the proximity sensor 7 stops detecting the proximity, the power source of the wearable speaker 1 is turned on.SELECTED DRAWING: Figure 5
Patent JP-2020124792-A (JP)
Title: Electric tool
Inventor: KONDO TOMOYUKI
IPC: B25B23/18
Filed: 2019-02-06
Abstract: To provide an electric tool which preferably lights work areas with a light and maintains durability of the light.SOLUTION: An impact driver 1 that is one example of an electric tool includes: a motor 11: a planetary gear mechanism 12 which is driven by the motor 11; a spindle 13 and a hammer 16; an anvil 17 which is driven by the planetary gear mechanism 12, the spindle 13, and the hammer 16; a hammer case 21 into which the planetary gear mechanism 12, the spindle 13, and the hammer 16 enter; lights 130A, 130B respectively disposed at the outside of the hammer case 21; and a light holding member 140 which holds the lights 130A, 130B and is disposed at the outside of the hammer case 21.SELECTED DRAWING: Figure 5
Patent JP-2020128566-A (JP)
Title: System for solidifying, evaporating and supplying metal halogen compound for thin film deposition
Inventor: SAI ATSUSHI
IPC: H01L21/31
Filed: 2019-02-07
Abstract: To provide a system for solidifying, evaporating and supplying a metal halogen compound for thin film deposition, capable of reducing particle contamination.SOLUTION: The system for solidifying, evaporating and supplying a metal halogen compound for thin film deposition comprises an evaporation raw material vessel 100 for storing and evaporating the metal halogen compound for thin film deposition and a buffer tank 101 connected to the evaporation raw material vessel 100. The evaporation raw material vessel 100 includes a vessel main body having a vessel wall, a lid body, a fastening member and a joint member; the vessel wall has a double wall structure constituted of an inner wall member and an outer wall member and is constituted so as to introduce a carrier gas into the vessel main body through between the double wall structure. The vessel wall is constituted of copper having a purity of 99-99.9999%, aluminum having a purity of 99-99.9996% or titanium having a purity of 99-99.9999%, and each of the vessel main body, the lid body, the fastening member and the joint member is subjected to fluororesin coating and/or electrolytic polishing.SELECTED DRAWING: Figure 1
Patent JP-2020129586-A (JP)
Title: Coil component
Inventor: IGARASHI HIROO
IPC: H01F27/29
Filed: 2019-02-07
Abstract: To provide a coil component capable of making it difficult to peel off the adhesive part of a metal terminal and a drum core, even by a heat cycle imparted in a state mounted on a mounting board.SOLUTION: An adhesive layer 26a is formed in contact with both rising part 23 of a metal terminal 16 and the outer end face 12b of the flange 6 of a drum core 2. The face in the rising part 23, facing the outer end face 12b, forms a grade face 29 for the outer end face 12b, and the thickest portion of the adhesive layer 26a is located on the side where the interval of the grade face 29 and the outer end face 12b is wider. Thickness T at the thickest portion of the adhesive layer 26a is 13 μm or more. Since a stress applied to the adhesive layer 26a by heat cycle is easily dispersed in the thickness direction at the thickest portion of the adhesive layer 26a, the adhesive part is less likely to be peeled.SELECTED DRAWING: Figure 2
Patent JP-2019069477-A (JP)
Title: Cam device
Inventor: MORITA ATSUSHI
IPC: B21D37/08
Filed: 2019-02-13
Abstract: To provide a cam device capable of preventing a processing tool from moving in a direction other than a processing direction.SOLUTION: A cam device has a cam base mounted on a movable die, a cam slider that enables a processing tool to which a load is applied to a thrust direction vertical to a processing direction in processing of a workpiece to be installed thereon, and a cam driver which drives the cam slider in the processing direction, where the cam slider has a groove part of a rectangular cross section having a first groove surface and a second groove surface vertical to the thrust direction, and a first lower surface and a second lower surface vertical to the first groove surface and the second groove surface on both sides of the groove part, and the cam driver has a projection part of a rectangular cross section having a first projection surface and a second projection surface vertical to the thrust direction, and a first upper surface and a second upper surface vertical to the first projection surface and the second projection surface on both sides of the projection part.SELECTED DRAWING: Figure 1
Patent JP-2020130458-A (JP)
Title: Steam processing container
Inventor: KINO SHINYA
IPC: A47J27/21
Filed: 2019-02-15
Abstract: To provide a steam processing container which can reduce the force of steam, compared to the prior art.SOLUTION: A steam processing container 254 related to the invention includes a first opening Ap, a second opening Am, As formed in a position different from the first opening, and a main passage Pm extending from the first opening to the second opening. The main passage is constituted by including at least one bifurcation part and at least one confluent part. The main passage is preferably constituted in a three-dimensional manner.SELECTED DRAWING: Figure 11
Patent JP-2020131097-A (JP)
Title: Tissue liquid extraction method
Inventor: NOGUCHI KENICHI
IPC: B01D3/10
Filed: 2019-02-18
Abstract: To improve extraction efficiency in extracting a tissue liquid from a processed product such as a plant by a distillation method.SOLUTION: A vacuum type drier 1 having such as a water ejector system is used in an extraction method. The drier 1 has a processing vessel 18 having an adiabatic layer 37 and a heating space 38 and a rotary body 19 arranged inside the processing vessel 18. The rotary body 19 has a rotary shaft 31 and pairs of first arms 42 and second arms 43, and a crushing member 44 is fixed to the pair of first arms 42, and an agitation member 45 is fixed to the pair of second arms 43. Though a processed product W is pressed against an inner surface of the processing vessel 18 by the crushing member 44, the processed product W is prevented from sticking to the inner surface of the processing vessel 18 by the agitation member 45 which has an excellent function of combing up the processed product W, and recovery of the dried processed product W becomes easy.SELECTED DRAWING: Figure 4
Patent JP-2020131906-A (JP)
Title: tire
Inventor: ISHIGAKE YUICHI
IPC: B60C13/00
Filed: 2019-02-19
Abstract: To provide a tire that improves visibility by further enhancing contrast.SOLUTION: A tire includes a decorative part in at least part of a visible outside surface. Multiple minute projections 11 are arranged in the decorative part. At least one minute projection 11 includes: a recess 14; and an outside wall part 15 forming a projection apex 11E by surrounding a periphery of the recess 14. The outside wall part 15 has a wall thickness T that varies in a circumferential direction in the projection apex 11E.SELECTED DRAWING: Figure 3
Patent JP-2020135390-A (JP)
Title: Information processor, method for processing information, and program
Inventor: ITO HIDEMASA
IPC: G06N3/04
Filed: 2019-02-19
Abstract: To provide an information processor, a method for processing information, and a program which can learn a network for controlling a control target more easily and with less load.SOLUTION: The information processor according to an embodiment includes: a data acquisition unit; a setting unit; and a reinforcement learning unit. The data acquisition unit acquires data of a graph structure which describes the connection relation of nodes. The setting unit sets a first network, which represents the data of the graph structure acquired by the data acquisition unit. The reinforcement learning unit derives a parameter of the first network so that the feature amount of the output layer of an evaluation target node will be closer to a reward and so that the feature amount of the output layer of an operation target node will be the feature amount which makes the feature amount of the output layer of the evaluation target node closer to the reward in the first network.SELECTED DRAWING: Figure 11
Patent JP-2020131553-A (JP)
Title: Printing cylinder with height adjusting member
Inventor: TAMURA HIDEAKI
IPC: B41F13/11
Filed: 2019-02-20
Abstract: To provide printing cylinders with height adjusting members disposed at bearers of the printing cylinders in order to inhibit adverse affect to printing quality and damage to cooperating rollers due to mechanical vibration generated by the gap part provided in the printing cylinder of the printer.SOLUTION: In a printer comprising printing cylinders with gap parts, a height adjusting member is provided at a portion which is in each of bearers provided at both ends of each printing cylinder and which corresponds to the gap part of the printer so as to configure the portion to have same height as height of a surface of the printing cylinder to prevent printing pressure from reducing.SELECTED DRAWING: Figure 2
Patent JP-2020134805-A (JP)
Title: Variable magnification optical system, optical instrument, and production method of variable magnification optical system
Inventor: OTAKE FUMIAKI
IPC: G02B13/18
Filed: 2019-02-22
Abstract: To provide: a variable magnification optical system having a small size, a wide angle of view, and high optical performance; an optical instrument having the variable magnification optical system; and a production method of the variable magnification optical system.SOLUTION: A variable magnification optical system ZL for use in an optical instrument such as a camera 1 comprises a first lens group G1 with negative refractive power, and a rear group GR comprising at least one lens group disposed on the image side of the first lens group G1. When the magnification is varied, intervals between neighboring lens groups change to satisfy a condition defined by prescribed conditional expressions.SELECTED DRAWING: Figure 1