baber/WOPTO huggingface dataset:
Patent JP-2017113414-A (JP)
Title: Absorbent article
Inventor: TAKASHIMA REIKO
IPC: A41C3/04
Filed: 2015-12-25
Abstract: PROBLEM TO BE SOLVED: To provide an absorbent article which allows a wearer to grasp an absorption performance of the absorbent article by a visual effect of the absorbent article on a skin facing surface.SOLUTION: A disposable diaper 10 comprises an absorbent core, a core wrap which is arranged on a skin facing surface side of the absorbent core, and a top sheet 50 which is arranged on a skin facing surface side of the core wrap. The top sheet 50 has low basis weight parts 51 and high basis weight parts 52. The low basis weight parts and the high basis weight parts respectively extend along a longer direction L and are alternately arranged in a width direction W. The core wrap comprises colored parts 80 which can be visually confirmed from the skin facing surface side of the absorbent article. The colored parts are arranged with an interval in the longer direction and are arranged with an interval in the width direction. A width direction length L532 of each colored part is shorter than a total length obtained by adding a width direction length L512 of the low basis weight part and a width direction length L522 of the high basis weight part. The disposable diaper comprises a first area R1 in which the colored part and the low basis weight part are overlapped, and a second area R2 in which the colored part and the high basis weight part are overlapped.SELECTED DRAWING: Figure 3
Patent JP-2017117347-A (JP)
Title: Article supporting device
Inventor: HIRAOKA MASAHARU
IPC: G07D9/00
Filed: 2015-12-25
Abstract: PROBLEM TO BE SOLVED: To provide an article supporting device that can be set easily and simply in the ATM of a convenience store and can increase the convenience of the ATM.SOLUTION: The article supporting device includes: a first supporting member 10, located over a front plate 7 of a container case 1 and being in contact with the back surface of the front plate 7, the container case 1 having a back plate 6 and the front plate 7, with a space in between for containing a sheet-like material; a second supporting member 11 on a surface of the front plate 7 of the case 1, being in contact with the front surface of a storage case enclosure 2, which supports the case 1 from below; and a holder member 12, being integrally connected to the second supporting member 11 in a substantially horizontal direction and having a supporting board 13 for supporting an article on the upper surface.SELECTED DRAWING: Figure 1
Patent JP-2015514270-A (JP)
Title: インフィニバンドネットワークにおけるバーチャルマシーンのライブマイグレーションをサポートするためのシステムおよび方法
IPC: G06F9/50
Filed: 2013-03-25
Abstract: システムおよび方法が、ネットワークにおけるバーチャルマシーンのライブマイグレーションをサポートし得る。複数のホストが、ネットワークを介して相互に接続され得る。各ホストは、１つ以上のバーチャルマシーンを含む。少なくとも１つのバーチャルマシーンは、第１のホストから第２のホストへのライブマイグレーションを行なうよう動作する。キューペア（ＱＰ）に付与される仮想機能は、ホスト上のホストチャネルアダプタ（ＨＣＡ）によってサポートされ得る。
Patent JP-2015518339-A (JP)
Title: データ符号化及び復号化
IPC: H04N19/593
Filed: 2013-04-08
Abstract: 【課題】クロマチャネルにおいてより少ない圧縮（又は、より多くの情報）を実現すること。【解決手段】選択された量子化ステップサイズ、及びサンプルの整理されたブロック内の異なる各ブロック位置での使用のための量子化ステップサイズを修正するデータの行列に応じて、ビデオデータを量子化することによって、量子化空間周波数データのブロックを生成するビデオ符号化又は復号化方法であって、少なくとも２つの異なるクロミナンス・サブサンプリング・フォーマットに関して動作可能であり、少なくとも１つのクロミナンス・サブサンプリング・フォーマットについて、参照する１つのクロミナンス・サブサンプリング・フォーマットについて定義された１以上の参照量子化列に応じた１以上の所定の修正として、１以上の量子化行列を定義する。【選択図】図５
Patent JP-2015529826-A (JP)
Title: 真核生物細胞の調節因子に関する方法及び組成物
IPC: G01N33/53
Filed: 2013-08-16
Abstract: 本発明は、真核生物細胞のタンパク質調節因子（例えば、抗体アゴニスト）を同定する方法を提供する。上記方法は、典型的には、真核生物細胞型（例えば、哺乳動物細胞）内でコンビナトリアルな物質のライブラリ（例えば、レンチウイルスベクターを介して）発現し、その後、上記細胞における細胞法等の表現型を調節するか、又は生じさせる標的分子（例えば、シグナル伝達受容体）のアゴニストである物質（例えば、抗体）を直接選択することを含む。ある関連する方法は、コンビナトリアルな物質のライブラリを発現する細胞と第２細胞を共培養し、その後、第２細胞における細胞応答の表現型を調節するか、又は生じさせる物質を選択することを含む。上記物質は抗体であり、開始細胞に導入されて、各細胞が抗体ライブラリの３つ以下の異なるメンバーを発現する条件下で発現されることが好ましい。さらに、本発明は、標的細胞をリプログラムするか、又は分化転換することが可能なタンパク質アゴニストを同定する方法を提供する。また、本発明では、真核生物細胞において表現型を調節するか、又は細胞応答をもたらすシグナル伝達受容体の特異的アゴニスト抗体又は生体分子（例えば、ＥｐｏＲ、ＴｐｏＲ又はＧ−ＣＳＦＲのアゴニスト抗体）が提供される。さらに、本発明では、コンビナトリアル抗体ライブラリから細胞表現型を制御することができる二重特異性抗体を選択する方法が提供される。【選択図】図１
Patent JP-2015534619-A (JP)
Title: 小さい曲げ半径を有する金属製サンドイッチ構造体
IPC: G10K11/16
Filed: 2013-08-26
Abstract: タービンエンジンのナセルのための音響減衰壁パネルは、アール部を含みうる。アール部は、ナセルを通る空気流に曝されうる、凹状構造を有する空気流表面を、含みうる。アール部は、音響減衰部を含みうる。【選択図】図１
Patent JP-2015537235-A (JP)
Title: ミラー素子の傾動を調整するための方法及びコンポーネント
IPC: G02B7/198
Filed: 2013-10-07
Abstract: 光学コンポーネント（２５）は、担持構造（１９）と、担持構造（１９）に対して、アクチュエータシステムによって傾動可能であるように取り付けられ、少なくとも１つのミラー電極（２２；３７）を備える少なくとも１つのミラー素子（２３）と、ミラー素子（２３）の傾動を調整するための少なくとも１つのローカル調整デバイス（３０）であって、少なくとも１つの容量性センサ及びミラー素子（２３）を傾動させるための少なくとも１つのアクチュエータ電極（２４）を有しているローカル調整デバイス（３０）と、前記ミラー素子（２３）の共振周波数以上の周波数を有する変調信号を発生する信号発生器（３９）とを備え、信号発生器は信号伝送方法で少なくとも１つのミラー電極（２２；３７）に接続される。【選択図】図８
Patent JP-2016500774-A (JP)
Title: 両方向マンガン団塊集鉱装備
IPC: B62D55/12
Filed: 2013-10-04
Abstract: 本発明は、一定の走行方向に沿って走行する走行装置部、前記走行装置部の両端部に設置され、マンガン団塊を採集する採集装置部、及び前記走行装置部の走行方向を感知して、感知される前記走行方向に沿う前記両端部に設置される採集装置部のうちのいずれか１つを駆動させる制御装置部を含む両方向マンガン団塊集鉱装備を提供する。
Patent JP-2016501875-A (JP)
Title: 活性化プロテインｃに対するヒト化モノクローナル抗体およびその使用
IPC: C12N15/09
Filed: 2013-11-27
Abstract: 不活性化プロテインＣに結合することなくまたは不活性化プロテインＣを阻害することなく、活性化プロテインＣに選択的に結合するおよび活性化プロテインＣを阻害するヒト化抗体が提供される。これらの抗体を使用する治療方法が本明細書に記載される。【選択図】図１
Patent JP-2016503082-A (JP)
Title: 顔料
IPC: C09D7/61
Filed: 2013-12-09
Abstract: 本発明は、基材の表面上に、（Ａ０）任意選択で、ＴｉＯ２の層からなる高屈折率コーティングと、（Ａ）ＴｉＯ２およびＦｅ２Ｏ３の混合物からなる高屈折率コーティングであって、任意選択で１種以上のさらなる酸化物でドープされていてもよいコーティングと、（Ｂ）ＳｎＯ２からなる高屈折率層と、（Ｃ）可視波長領域で吸収を示す高屈折率コーティングと、任意選択で、（Ｄ）外側保護層とを含む層配列を有する、マルチコートフレーク状基材をベースとする干渉顔料、ならびに、特に塗料、コーティング、工業用塗料、自動車用塗料、自動車用補修塗料、コイルコーティング、粉体コーティング、印刷インク、プラスチック、顔料ペースト、顔料調合品および乾燥調製物、例えば顆粒等におけるその使用に関する。
Patent JP-2016505759-A (JP)
Title: ターボ機械用密封アセンブリ
IPC: F02C7/28
Filed: 2013-12-18
Abstract: 本発明は、少なくとも１つの可動圧縮機ホイール（２０）を含む空気圧縮段（２）と、前記空気圧縮段（２）に結合された吸気ダクト（４）と、可動圧縮機ホイール（２０）の前部分（５６）と吸気ダクト（４）との間に配置され、少なくとも１つのシール（６０）を含む、第一密封装置（５４）と、可動ホイール（２０）によって圧縮された空気を搬送するためのチャネル（４５）と、可動圧縮機ホイール（２０）の後部分（６６）と搬送チャネル（４５）との間に配置され、搬送チャネル（４５）から来る空気流（Ｆ２）を受けるように構成されている、第二密封装置（６４）と、を含むタービンエンジンであって、タービンエンジン（１）は、第二密封装置（６４）がそこを通過する空気の一部を抽気（Ｆ３）させるように構成されており、抽気空気（Ｆ３）はこれを圧力下で維持するように第一密封装置（５４）のシール（６０）まで搬送される点が注目される、タービンエンジンに関する。
Patent JP-2016502940-A (JP)
Title: 非当接側腹部を有する切削インサートを備えた切削工具
IPC: B23B27/16
Filed: 2013-12-23
Abstract: 切削工具（１００）は、工具ホルダ（１０２）の対応するインサートポケット（１０４）内に保持されるＳ字形切削インサート（１１２）を有する。インサートポケット（１０４）は、前方方向から後方方向へ延びる縦方向の主軸（Ｍ）を有する。切削インサート（１１２）は縦方向の第１軸（Ｉ）および横方向の第２軸（Ｌ）を有し、第１軸（Ｉ）に沿って、２つの反対側にある切削部分（１１８）およびそれらの間のクランプ部分（１２０）が配置されている。インサートポケット（１０４）は、前方当接表面（１２６）を有する前方クランプ部分（１２４）と、第１および第２の後方当接表面（１３０、１３２）を有する後方クランプ部分（１２８）とを含む。第１および第２クランプ表面（１３８、１４０）はインサート（１１２）の両側にあり、後方クランプ部分（１２８）において、それらはそれぞれ第１および第２後方当接表面（１３０、１３２）と当接する。前方クランプ部分（１２４）において、切削インサート（１１２）の第１クランプ表面（１３０）が前方当接表面（１２６）と当接する。
Patent JP-2016511717-A (JP)
Title: 成形式プリントバー
IPC: B41J2/16
Filed: 2013-02-28
Abstract: 一実施形態では、プリントバーは、細長い一体型の本体内に成形された複数のプリントヘッドダイを含む。該ダイは、該本体の全長に渡りほぼ端から端まで配置され、該本体は、該ダイへ流体が直接通過することを可能にするチャネルを有している。【選択図】図１２
Patent JP-2016145191-A (JP)
Title: Hat acetylation promoters and uses of compositions thereof in promoting immunogenicity
Inventor: ALVERINA F SETIADI
IPC: A61K45/00
Filed: 2016-01-07
Abstract: PROBLEM TO BE SOLVED: To provide methods and compositions for promoting immunogenicity of cells deficient in the expression of Transporters associated with Antigen Processing (TAP)-1 by increasing the presentation of Major Histocompatibility Complex (MHC) Class I surface molecules for detection by cytotoxic T lymphocytes through increased (TAP)-1 expression.SOLUTION: Provided is a pharmaceutical composition for use in treatment of TAP-1 deficient cancer, which comprises a histone deacetylase inhibitor with an appropriate adjuvant or carrier. The pharmaceutical composition may further comprise a vaccine formulation. The TAP-1 deficient cancer may express an antigen of herpes virus or papilloma virus.SELECTED DRAWING: None
Patent JP-2017125878-A (JP)
Title: Electrophotographic photoreceptor
Inventor: AZUMA JUN
IPC: G03G5/05
Filed: 2016-01-12
Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor having excellent wear resistance.SOLUTION: An electrophotographic photoreceptor 10 comprises a photosensitive layer 12 including a charge generating layer 13, a charge transportation layer 14, a specific polyarylate resin, and a specific polycarbonate resin.SELECTED DRAWING: Figure 1
Patent JP-2017124529-A (JP)
Title: Antifogging film and antifogging composition
Inventor: HAYASHI YUMI
IPC: C09K3/00
Filed: 2016-01-13
Abstract: PROBLEM TO BE SOLVED: To provide an antifogging material excellent in moisture resistance, water resistance and water scale resistance, and to provide an antifogging composition for the same.SOLUTION: There is provided an antifogging film which has an antifogging layer 12 on at least one of a base material, where the antifogging layer contains at least one or more fine cellulose and at least one or more polyvalent metal ions, a number average minor axis diameter of a minor axis of the fine cellulose is 1 nm or more and 500 nm or less, a number average minor axis diameter of a major axis thereof is 0.05 μm or more and 50 μm or less, and at least a part of a hydroxyl group of a glucopyranose unit is converted into a carboxyl group.SELECTED DRAWING: Figure 1
Patent JP-2017124543-A (JP)
Title: Printer, control method, and printing system
Inventor: UNO AKIHIRO
IPC: B41J2/32
Filed: 2016-01-14
Abstract: PROBLEM TO BE SOLVED: To provide a thermal-type printer which is provided with a head element, can adequately recognize a deterioration state of the head element, and can suppress a data amount to be held.SOLUTION: A thermal-type printer is provided with a thermal head 26 having a plurality of head elements, a voltage application circuit 25 for applying a printing voltage and an inspection voltage on the head elements, a head control part 23 for controlling the thermal head 26 and the voltage application circuit 25, and a data storage part 24 for storing a conversion table which stores divided voltages and resistance values of the head elements by corresponding to each other. The head control part 23 applies the inspection voltage to the head element by the voltage application circuit 25 at a predetermined timing, measures the divided voltage of the head element, coverts the divided voltage measured on the basis of the conversion table into the resistance value, acquires deterioration information based on the converted resistance value, and stores the deterioration information in the data storage part 24.SELECTED DRAWING: Figure 1
Patent JP-2017129508-A (JP)
Title: Self-location estimation system, self-location estimation method, mobile terminal, server and self-location estimation program
Inventor: TASHOJI MASANORI
IPC: G01C15/00
Filed: 2016-01-22
Abstract: PROBLEM TO BE SOLVED: To estimate a self-location in a tunnel.SOLUTION: A self-location estimation system comprises: a server which stores a three-dimensional model of a designated tunnel in a first database and characteristic information on cracks extracted from the three-dimensional model in a second database; and a mobile terminal which stores a copy of the characteristic information in the second database in a third database. When an interior image of the tunnel is captured with a camera, the mobile terminal: extracts the characteristic information on the cracks on an inner wall of the tunnel from the interior image of the tunnel; compares the extracted characteristic information on the cracks with the characteristic information stored in the third database; identifies the crack shown in the interior image of the tunnel captured with the camera; and estimates a self-location in the tunnel on the basis of the identified crack.SELECTED DRAWING: Figure 2
Patent JP-2017132875-A (JP)
Title: Lubricant composition
Inventor: MAMORI NOBUHARU
IPC: C10M105/04
Filed: 2016-01-27
Abstract: PROBLEM TO BE SOLVED: To provide a lubricant composition used for a speed change gear, especially differential gear even when made to have low viscosity and capable of suppressing generation of abrasion due to bearing or the like and scoring on a gear tooth flank or the like.SOLUTION: There is provided a lubricant composition containing a lubricant base oil and a sulfur extreme pressure agent, where active sulfur amount of the extreme pressure agent is 5 to 30 mass% and the extreme pressure agent is contained at the amount of 5 to 15 mass% based on mass of whole lubricant composition. The sulfur extreme pressure agent is olefin sulfide, the lubricant composition has kinetic viscosity of 5 to 15 mm/s at 100°C and the lubricant base oil preferably has kinetic viscosity of 5 to 15 mm/s at 100°C.SELECTED DRAWING: None
Patent JP-2017135622-A (JP)
Title: Packet filtering device
Inventor: HOSODA SUSUMU
IPC: G06F13/00
Filed: 2016-01-29
Abstract: PROBLEM TO BE SOLVED: To provide a packet filtering device capable of easily managing a filtering condition, and reducing the burden in management.SOLUTION: A packet filtering device 4 stores filtering condition information including a host name of an external device 7, and IP address information including a destination IP address of a communication packet. When the communication packet transmitted to the external device 7 from a terminal device 3 is a connection packet for a TLS connection, the packet filtering device transmits a connection request for performing the TLS connection to the external device 7 instead of the terminal device 3, and acquires an electronic certificate from the external device 7. When a host name extracted from the electronic certificate is included in the filtering condition information, the IP address information is updated by using the destination IP address of the connection packet. The packet filtering device controls whether to pass the communication packet on the basis of whether or not the destination IP address of the communication packet transmitted from the terminal device 3 is included in the IP address information.SELECTED DRAWING: Figure 1
Patent JP-2017139636-A (JP)
Title: Imaging apparatus with live view function
Inventor: UENO HIROTAKA
IPC: H04N5/243
Filed: 2016-02-04
Abstract: PROBLEM TO BE SOLVED: To provide an imaging apparatus with a live view function capable of simulating depth of field without being influenced by flicker and in accordance with an aperture value that is designated by a user, during live view imaging.SOLUTION: The present invention relates to an imaging apparatus comprises imaging means which includes aperture control means and shutter control means and captures a subject image formed by an imaging optical system, and a live view function capable of performing live view imaging in which an image captured by the imaging means is displayed on display means without being recorded in recording means, and main imaging in which the image is recorded in the recording means. The imaging apparatus also comprises: manual aperture value setting means for manually setting an aperture value during the main imaging; flicker frequency setting means for setting a flicker frequency; and live view control means for performing the live view imaging by setting an exposure time due to the shutter control means to an integer multiple of an inverse of the flicker frequency that is set by the flicker frequency control means, in such a manner that a proper exposure value can be obtained in accordance with the manually set aperture value, while the aperture value during the main imaging is manually set by the manual aperture value setting means.SELECTED DRAWING: Figure 4
Patent JP-2017145709-A (JP)
Title: Exhaust emission control system
Inventor: FUSE TAKUYA
IPC: F01N3/08
Filed: 2016-02-15
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control system which uses reductant included in reduction solution to reduce nitrogen oxide in exhaust gas, for enabling the enhancement of reductant concentration or the lower solidification point of the reduction solution.SOLUTION: The exhaust emission control system includes an energy conversion part 100 for performing energy conversion on the basis of fuel oxidation and exhausting exhaust gas including nitrogen oxide, a storage part 4 storing the reduction solution for reducing the nitrogen oxide included in the exhaust gas, a catalyst 22 provided in an exhaust flow path 11 where the exhaust gas distributes, for promoting the reductive reaction of the nitrogen oxide, and a supply part 3 for supplying the reduction solution supplied from the storage part 4 to the catalyst 22, the reduction solution including the reductant for reducing the nitrogen oxide included in the exhaust gas, surface active agent, and solvent capable of solving the reductant and the surface active agent. The content of the surface active agent in the reduction solution is lower than each of the content of the reductant and the content of the solvent.SELECTED DRAWING: Figure 1
Patent JP-2017147360-A (JP)
Title: Electronic component inspecting method, electronic component mounting method, and electronic component mounting device
Inventor: TANAKA SHINTARO
IPC: G06T1/00
Filed: 2016-02-18
Abstract: PROBLEM TO BE SOLVED: To provide an electronic component inspecting method in which a decrease in inspection accuracy is suppressed.SOLUTION: An electronic component inspecting method includes the steps of: acquiring a sample image indicating an image of a sample region containing an electronic component by an imaging device; splitting the sample image acquired by the imaging device into a plurality of grid regions; acquiring a coordinate of a first grade grid region in which a pixel with a concentration value not less than a threshold value exists among the plurality of grid regions; calculating a confidence region in which a center position of the electronic component may exist in the sample image by performing inferential static processing on the basis of the coordinate of the first grade grid region; specifying a search region containing the confidence region and smaller than the sample region in the sample image; and moving a template to the search region and searches for the electronic component on the basis of the correlation value between partial image data of the search region and the template.SELECTED DRAWING: Figure 7
Patent JP-2016136265-A (JP)
Title: Daylighting sheet, daylighting device and building
Inventor: KASHIWAGI TAKESHI
IPC: F21S11/00
Filed: 2016-02-18
Abstract: PROBLEM TO BE SOLVED: To provide a daylighting sheet capable of suppressing direct projection of sunlight (direct incident light), allowing efficient lighting, and making an outdoor side visible from an indoor side.SOLUTION: A daylighting sheet includes: a base material layer; and a light deflection layer formed on one side of the base material layer and configured to deflect light. The light deflection layer includes: a plurality of light transmission parts aligned along the one side of the base material layer and configured to transmit light; and light deflection parts arranged between the plurality of light transmission parts and filled with an ultra-violet ray curable resin composition having a refractive index lower than the light transmission part. At a portion with the light transmission part arranged, the front and back sides of the light deflection layer are formed in parallel. Under a state where the daylighting sheet is arranged at an opening of a building, in a vertical section in a thickness direction of the daylighting sheet, the upper side of the light deflection part is formed at an angle of 0-23.1°, inclusive, relative to the normal line of the sheet surface. The lower side opposite to the upper side is a straight line, and tilted by 0-30°, inclusive, relative to the normal line of the sheet surface.SELECTED DRAWING: Figure 3
Patent JP-2017144704-A (JP)
Title: Liquid ejection substrate, liquid ejection head, and liquid ejection apparatus
Inventor: KARITA SEIICHIRO
IPC: B41J2/18
Filed: 2016-02-19
Abstract: PROBLEM TO BE SOLVED: To provide a liquid ejection substrate, liquid ejection head, and liquid ejection apparatus capable of causing liquids to reliably circulate through pressure chambers provided in a one-to-one correspondence with a plurality of ejection ports.SOLUTION: A common supply passage 13 is connected with a portion of one side of each of plural pressure chambers R; a common discharge passage 14 is connected with a portion of the other side of each of the plural pressure chambers R. The common supply passage 13 is provided with plural supply ports 15A, 15B through which an ink of a first pressure is introduceable; the common discharge passage 14 is provided with plural discharge ports 16A, 16B through which an ink of a second pressure different from the first pressure is introduceable.SELECTED DRAWING: Figure 5
Patent JP-2017150847-A (JP)
Title: Method and device for analyzing oxygen in steel
Inventor: ARAI MASAHIRO
IPC: G01N33/20
Filed: 2016-02-22
Abstract: PROBLEM TO BE SOLVED: To provide a method and a device for an accurate and speedy analysis of oxygen in molten steel.SOLUTION: A method for analyzing oxygen in steel comprises: a process to prepare an analytical sample by taking a steel ingot from molten steel and mechanically processing a solidified steel ingot while the same is still in a red heat state; a vacuum arc plasma treatment process to clean a surface of an analytical sample piece in a manner that repeats, predetermined times, a discharge treatment to generate arc plasma discharge under vacuum between the analytical sample as one electrode and the other electrode opposite thereto and a cooling treatment to cool the analytical sample for a predetermined period or to a predetermined temperature by blowing inert gas toward the same after every arc plasma discharge; a sample input process to directly input the analytical sample piece into a graphite crucible without exposing the same to the atmosphere; and an analytical process to melt the analytical sample piece by heating the same through the graphite crucible in the inert gas and to measure an oxygen concentration of the analytical sample piece from infrared absorbance of either carbon monoxide or carbon dioxide generated by heating the same.SELECTED DRAWING: Figure 1
Patent JP-2017141009-A (JP)
Title: Fall collision prevention device
Inventor: SANO AKIRA
IPC: B64C39/02
Filed: 2016-02-08
Abstract: PROBLEM TO BE SOLVED: To provide a facility capable of preventing crash of a drone with a simple structure, physically controlling a flight range, and suppressing size increase.SOLUTION: There is provided a drone fall prevention device for preventing fall of a drone 6 and performing a flight range control in a physical manner, in which a fall prevention cable 7 is attached to a drone lower side and is arranged on a drone pedestal 4 upper side, and a cable fastening hook for a before flight point is attached to the fall prevention cable 7 at a position having a length equal to a height raised by a stretchable pole 3. The stretchable pole 3 is stretched and raised, the cable fastening hook for a before flight point is removed, a flight possible distance is determined, then a cable fastening hook 9 for an after flight point is attached to the fall prevention cable 7 and then a drone is made to fly. According to the above-mentioned works, even when the drone falls in flight or flies to outside of the flight range, a hook is stopped to a stretchable pole pedestal cable through hole 11, for preventing fall and controlling the flight range.SELECTED DRAWING: Figure 5