baber/WOPTO huggingface dataset:
Patent JP-WO2018074529-A1 (JP)
Title: インデノカルバゾール化合物および有機エレクトロルミネッセンス素子
IPC: H01L51/50
Filed: 2017-10-18
Abstract: 本発明によれば、正孔輸送性を有しており、有機エレクトロルミネッセンス素子の構成材料として使用され、下記一般式（１）で表されることを特徴とするインデノカルバゾール化合物、および、一対の電極とその間に挟まれた少なくとも一層の有機層を有する有機エレクトロルミネッセンス素子において、前記インデノカルバゾール化合物が、少なくとも一層の有機層の構成材料として用いられていることを特徴とする有機エレクトロルミネッセンス素子が提供される。本発明のインデノカルバゾール化合物は、（１）正孔輸送性に優れ、（２）電子阻止性に優れ、（３）薄膜状態が安定であり、耐熱性に優れている。また、本発明の有機エレクトロルミネッセンス素子は、高発光効率、高輝度である。
Patent JP-WO2018116488-A1 (JP)
Title: 解析サーバ、監視システム、監視方法及びプログラム
IPC: H04N7/18
Filed: 2017-03-02
Abstract: 主たる監視対象に加え、主たる監視対象と関連性のある対象の検出を可能とする解析サーバを提供する。解析サーバは、第１の監視対象が検出された場合、第１の監視対象と関係を有すると推定される第２の監視対象を、カメラからの映像データを外部に出力する映像サーバから取得した映像データに基づき検出する。
Patent JP-WO2018131067-A1 (JP)
Title: 記憶ドライブの故障により消失したデータを復元する装置
IPC: G06F3/06
Filed: 2017-01-10
Abstract: 記憶ドライブの故障により消失したデータを復元する方法であって、故障した第１の記憶ドライブの第１の論理領域を選択し、前記第１の論理領域を含み、異なる記憶ドライブの論理領域ブロックからなり、消失した内部データを復元可能な冗長構成を有するデータセットを格納する、第１の論理領域ラインを特定し、前記第１の論理領域ラインから、前記第１の論理領域のデータを復元するためにアクセスする１以上の第２の論理領域を選択し、前記１以上の第２の論理領域をそれぞれ提供する１以上の第２の記憶ドライブのそれぞれに対して、前記第２の論理領域を指定して、有効なデータが格納されているかを問い合わせるデータ格納情報要求を発行する、ことを含む。
Patent WO-2019151140-A1 (WO)
Title: Sheet bundle discharging device and binding device
Inventor: OKAMOTO KOJI
IPC: B65H15/00
Filed: 2019-01-25
Abstract: This sheet bundle discharging device K is provided with: a transport unit 66 that transports a sheet bundle; a guide unit 72 that guides the sheet bundle transported by the transport unit; a discharging unit that discharges the sheet bundle to the outside of the sheet bundle discharging device; and a receiving unit 81 that receives the sheet bundle guided by the guide unit. The receiving unit includes: an abutment unit 81 abutted by a movement-direction tip part of the sheet bundle guided by the guide unit; and a pressing part 81b that is integrally configured with the abutment part and presses a first surface of the sheet bundle. The receiving unit can rotate between a first position and a second position, receives the sheet bundle at the first position, rotates from the first position to the second position so that the pressing part presses the first surface of the sheet bundle, and places a second surface, which is on the reverse side of the sheet bundle from the first surface, on the discharging unit.
Patent WO-2020157816-A1 (WO)
Title: 油圧緩衝装置及び同製造方法
Inventor: AWASA SHIGEKI
IPC: F16F9/32
Filed: 2019-01-29
Abstract: 油圧緩衝装置（２０）は、筒状に形成され内部にオイル（Ｏｉ）が流れる第１の筒体（３２）と、第１の筒体（３２、４１）の内部に設けられた筒体であって、内部にオイル（Ｏｉ）が流れると共に第１の筒体（３２、４１）との間に形成された油路（ＯＰ）にオイル（Ｏｉ）が流れる第２の筒体（６０）と、第２の筒体（６０）に設けられ油室（Ｒ１、Ｒ２）の一端を区切る隔壁部材（４３）と、隔壁部材（４３、４９）を貫通して第２の筒体（６０）の軸線（ＣＬ）に沿って延び、隔壁部材（４３、４９）に対して相対的に移動可能であると共に、外周に中心に向かって凹んだディンプル部（３３ｂ、４５ｂ）を有するロッド（３３、４５）と、ロッド（３３、４５）の先端に設けられオイル（Ｏｉ）が通過可能なピストン（３５、４７）と、を有する。
Patent WO-2019151416-A1 (WO)
Title: Air-conditioning device foe vehicle
Inventor: MAEDA KENICHIRO
IPC: B60H1/00
Filed: 2019-01-31
Abstract: Provided is an air-conditioning device for a vehicle having mounted thereon a seat (30, 30A, 30B) provided with a sitting surface (32a) which supports the back of an occupant in a vehicle interior, the seat being configured so that the sitting surface can be switched to a forward facing position in which the sitting surface faces forward with respect to a vehicle movement direction, and to a rearward facing position in which the sitting surface faces rearward with respect to the vehicle movement direction. The air-conditioning device is provided with: an interior air-conditioning unit (10) which discharges an air-conditioning air flow into the vehicle interior; and a discharge opening-forming section (21, 22, 21A, 21C, 21D, 70) disposed on the front side, in the vehicle movement direction, of the seat, and forming a discharge opening (22c, 22d, 22f, 71a, 71b) from which the air-conditioning air flow from the interior air-conditioning unit is discharged toward the seat. When the sitting surface is in the rearward facing position, the air-conditioning air flow from the discharge opening is delivered to the rear side, in the vehicle movement direction, of the sitting surface of the seat.
Patent WO-2019181305-A1 (WO)
Inventor: OYADOMARI SEIICHI
IPC: C12N15/113
Filed: 2019-02-15
Abstract: The present inventor clarified that an expression inhibitor of a snoRNA, which is expressed at a high level specifically in cancer cells, remarkably inhibits the engraftment and proliferation of cancer cells and, therefore, can be used as a therapeutic agent for cancer with a new function mechanism. As such a snoRNA expressed at a high level specifically in cancer cells, the present inventor found SNORA50C, SNORA56, SNORD42B, SNORA69, SNORD111, SNORD99, SNORA74A, SNORD105B, SNORD37 and SNORD54. The thus obtained therapeutic agent for cancer according to the present invention is a drug that has little side effects and can be concomitantly used with an immunotherapeutic agent for cancer.
Patent WO-2019188302-A1 (WO)
Inventor: OKUDA YOSHIYUKI
IPC: G01S17/36
Filed: 2019-03-13
Abstract: 第１周波数の第１周波数信号及び第１周波数よりも高い第２周波数の第２周波数信号に基づいて光強度を変調したレーザ光を出射する出射部と、対象物で反射されたレーザ光を受光し、受光したレーザ光の光強度を電気信号に変換する受光部と、電気信号から生成された第１周波数の信号成分と第１周波数信号との位相差を検出する第１位相差検出部と、電気信号から生成された第２周波数の信号成分と第２周波数信号との位相差を検出する第２位相差検出部と、第１位相差検出部により検出された位相差及び第２位相差検出部により検出された位相差に基づいて、対象物までの距離を算出する距離算出部と、を有する。レーザ光は、第２周波数の正弦波信号の位相が第１周波数の正弦波信号に基づいて変位された合成信号により変調された光強度を有する。
Patent WO-2020183699-A1 (WO)
Title: Electronic apparatus and method for controlling electronic apparatus
Inventor: SUNAGARE HIROSHI
IPC: G09G3/36
Filed: 2019-03-14
Abstract: An electronic apparatus according to an aspect of the present invention comprises: a video signal processing unit that receives a video signal and outputs a prescribed type of signal; an arithmetic processing unit that transfers corrected portion data corresponding to the different portion between the current unevenness correction data and the previous unevenness correction data; and an unevenness correction unit that corrects the prescribed type of signal on the basis of the current unevenness correction data.
Patent WO-2019189896-A1 (WO)
Title: Program and information processing method
Inventor: TAKAHARA KOICHIRO
IPC: G06Q50/10
Filed: 2019-03-29
Abstract: Provided are a program and the like that match riders whom it would benefit to share a taxi. A program that makes a computer execute processing that: acquires a candidate for sharing a taxi and a calculated cost for sharing with the candidate; displays the acquired candidate and calculated cost; and receives a selection of whether to share with the displayed candidate. The program displays whether the candidate is a mid-trip disembarker who will get out of the taxi mid-trip.
Patent WO-2019208696-A1 (WO)
Title: Screening method for self-replication-ability-related genes in hematopoietic stem cells, and method for using said genes
Inventor: Miyanishi Masanori
IPC: C12N5/0789
Filed: 2019-04-25
Abstract: [Problem] To provide a method for separating long-term and short-term hematopoietic stem cells, a method for identifying genes specifically expressed in long-term hematopoietic stem cells, a method for identifying genes involved in long-term-hematopoietic-stem-cell-like long-term self-replication ability maintenance, and a method for imparting or enhancing a long-term self-replication ability maintenance characteristic in hematopoietic stem cells through use of such genes. [Solution] Using the Hoxb5 gene, which serves as a gene expressed only in long-term hematopoietic stem cells, as a marker makes it possible to separate long-term and short-term hematopoietic stem cells, and comparing these cell groups makes it possible to screen genes involved in the long-term self-replication ability maintenance characteristic. The self-replication ability maintenance characteristic was actually confirmed to be enhanced by causing the Hoxb5 gene specifically expressed only in long-term hematopoietic stem cells to be expressed in short-term hematopoietic stem cells.
Patent WO-2019220931-A1 (WO)
Title: Display device
Inventor: MACHIDA AKIO
IPC: G02B27/02
Filed: 2019-04-26
Abstract: A display device 1A is provided with: a frame 10 provided with a front part 11 disposed in front of an observer 50, a temple part 12 extending from both ends of the front part, and a pad part 17, the frame 10 being mounted on the head of the observer 50; and an image display device attached to the frame 10. The image display device is provided with an image-forming device 30, and an optical device 40 on which light emitted from the image-forming device 30 is incident, and from which the light is emitted toward the observer, one end 40A of the optical device being fixed to the temple-part side of the front part 11, another end 40B of the optical device being disposed on the pad-part side of the front part 11, and a shading member 60 for preventing the incidence of external light to the other end 40B of the optical device from above the other end 40B of the optical device being attached to the pad-part side of the front part 11.
Patent WO-2020217522-A1 (WO)
Inventor: YAMASHITA KOICHI
IPC: B66B1/34
Filed: 2019-04-26
Abstract: This elevator device is provided with an elevator car, a power transmission unit having a power transmission coil for contactless power feed, and a control unit, wherein: the elevator car has a power storage device having a storage battery, a power receiving unit having a power receiving coil for contactless power feed, and a door, wherein the control unit uses at least one among the number of charging cycles of the storage battery, operation time or elapse time after the previous charge of the storage battery, the number of door opening/closing operations, and power consumption of apparatuses inside the elevator car to estimate deterioration of the storage battery and detect the service life of the storage battery. Accordingly, it is possible to detect the service life of the storage battery by estimating the deterioration of the storage battery from the operation of the elevator device and to promote the replacement of the storage battery.
Patent WO-2019239971-A1 (WO)
Title: Information processing method, information processing device and program
Inventor: TACHIBANA MAKOTO
IPC: G10L13/00
Filed: 2019-06-05
Abstract: This information processing device comprise: a range setting unit that sets a pronunciation style for a specific range on a time axis; a musical note processing unit that places a musical note in accordance with an indication from a user within the specific range in which the pronunciation style is set; and a transition generation unit that generates a characteristic transition, which is a transition of an acoustic characteristic of speech in which the musical note within the specific range is pronounced in the pronunciation style set in the specific range.
Patent WO-2020250263-A1 (WO)
Title: Dust collection device and air conditioning device provided with dust collection device
Inventor: SHIMIZU AKINORI
IPC: F24F7/08
Filed: 2019-06-10
Abstract: A dust collection device comprises: a plurality of trapping plates that are arrayed in a direction intersecting an air passage direction in an airflow path through which air passes, with spaces therebetween, and that are charged by friction;, a fiction member that is in contact with the trapping plates and rubs the trapping plates; and a drive control unit that controls relative movement between the trapping plates and the friction member on the basis of humidity of the air passing through the trapping plates, and efficiently collects dust with decrease in charge amount of the trapping plates being suppressed.
Patent WO-2020255291-A1 (WO)
Inventor: YAMAZAKI TAKESHI
IPC: H05K5/03
Filed: 2019-06-19
Abstract: Provided is an elevator operation panel which allows a face plate to be opened and closed with a simple structure. This elevator operation panel comprises: a box that has an opening in the front; a face plate that closes the opening of the box; a first movement restrictor that is provided inside the lower portion of the box; and a second movement restrictor that is provided on the back side of the lower portion of the plate, is disposed between the inside of the lower portion of the box and the first movement restrictor in a state in which the face plate closes the opening of the box, and moves between the inside of the lower portion of the box and the first movement restrictor while the face plate is moved forward of the box from the position where the face plate closes the opening of the box.
Patent WO-2020009006-A1 (WO)
Title: Variable valve system for internal combustion engine, and control device for variable valve system for internal combustion engine
Inventor: NAKAMURA MAKOTO
IPC: F02M26/01
Filed: 2019-06-27
Abstract: According to the present invention, in a first load range, exhaust closing timing at which an exhaust valve (5) is closed is set at first exhaust closing timing (EVC1) that is before an exhaust top dead center, opening timing at which an intake valve (4) is opened is set at first intake opening timing (IVO1) that is after the exhaust top dead center, and there is a negative valve overlap interval (NVO) between the exhaust valve (5) and the intake valve (4). In a second load range that is above the first load range, the exhaust closing timing is set at second exhaust closing timing (EVC2) that is after the exhaust top dead center, intake opening timing is set at second intake opening timing (IVO2) that is before the exhaust top dead center, and there is a positive valve overlap interval (PVO) between the exhaust valve (5) and the intake valve (4).
Patent WO-2020009180-A1 (WO)
Inventor: SUGITA SHUJI
IPC: F16L33/22
Filed: 2019-07-04
Abstract: クランプによる締め付けのみで継手本体のニップルに対し可撓管を密着させて着脱可能に連結する。　弾性変形可能な可撓管の挿入空間に沿って設けられたニップルを有する継手本体と、ニップルよりも径方向外側で且つ継手本体の軸方向端部に径方向へ突出して形成される第一フランジと、ニップルと可撓管の挿入空間を挟んで径方向へ対向するように設けられる筒状のへルールと、へルールの軸方向端部に第一フランジと軸方向へ対向するように径方向へ突出して形成される第二フランジと、挿入空間に差し込まれた可撓管の外表面とへルールとの間に設けられる径方向へ弾性変形可能な環状の押さえ部材と、第一フランジ及び第二フランジに亘って両者の対向方向へ接近させ締め付けるように設けられるクランプと、を備え、へルールは、クランプによる第一フランジと第二フランジの締め付け状態で、挿入空間に差し込まれた可撓管の外表面に向け押さえ部材を押し込むように形成される押圧面を有し、押さえ部材は、押圧面により可撓管の外表面に入り込んで可撓管の内表面がニップルの外周面に圧接するように形成される縮径部を有することを特徴とする管継手。
Patent WO-2020009229-A1 (WO)
Inventor: WATANABE MASAHIRO
IPC: B32B3/30
Filed: 2019-07-05
Abstract: Ce film adhésif de carte de circuit imprimé comprend une couche d'agent de liaison 111, et une couche de protection isolante 112. Avec la couche de protection isolante 112, le rapport charge/surface (Smr2) séparant une partie vallée de projection et une partie coeur est de 91 % ou moins.
Patent WO-2020017366-A1 (WO)
Title: Display device
Inventor: NAKATOGAWA HIRONDO
IPC: G09F9/00
Filed: 2019-07-05
Abstract: A display device which is provided with: a first display area which is provided on a first substrate; a second display area which is provided on a second substrate that is arranged on the back of the first substrate; a third substrate which is arranged between the first substrate and the second substrate; a drive circuit which is provided on the third substrate and controls displays in the first display area and the second display area; a first terminal which is provided in a region on the third substrate, said region extending along one end of the third substrate, and into which a signal from the drive circuit to the first display area is input; and a second terminal which is provided in a region on the third substrate, said region extending along another end that is opposite to the one end of the third substrate, and into which a signal from the drive circuit to the second display area is input.
Patent WO-2020022098-A1 (WO)
Inventor: TONEGAWA SUSUMU
IPC: H01L29/78
Filed: 2019-07-12
Abstract: Le but de la présente invention est de réduire la concentration de courant dans une région de canal lorsque la diffusion d'impuretés à partir d'une région d'isolation d'élément a été provoquée. Cet élément semi-conducteur comporte une région d'isolation d'élément, une région de source, une région de drain, une grille et une région de canal qui sont formées dans un substrat semi-conducteur. La grille est disposée sur une surface du substrat semi-conducteur par l'intermédiaire d'un film isolant, entre la région de source et la région de drain. La région de canal est disposée entre la région de source et la région de drain directement sous la grille et adjacente à la région d'isolation d'élément, et est configurée sous une forme telle que la longueur de canal, qui est la distance entre la région de drain et la région de source, est réduite au voisinage de la région d'isolation d'élément.
Patent WO-2020031614-A1 (WO)
Title: Slurry composition for nonaqueous secondary battery adhesive layers, adhesive layer for nonaqueous secondary batteries, separator for nonaqueous secondary batteries, and nonaqueous secondary battery
Inventor: TANAKA KEIICHIRO
IPC: H01M50/443
Filed: 2019-07-12
Abstract: A slurry composition for nonaqueous secondary battery adhesive layers, which contains organic particles, a sulfosuccinic acid ester or a salt thereof, a hydrocarbon having a molecular weight of 1,000 or less, and water.
Patent WO-2020022147-A1 (WO)
Title: Electromagnetic wave detection device and information acquisition system
Inventor: TAKEUCHI ERI
IPC: G01J5/48
Filed: 2019-07-17
Abstract: This electromagnetic wave detection device 100 comprises a first image formation part 110 for forming incident electromagnetic waves into an image, a wavelength separation part 123 having a transmittance of electromagnetic waves in a first wavelength band that is greater than the transmittance of electromagnetic waves not in the first wavelength band, and a first detection unit 140 for detecting electromagnetic waves that have successively passed through the first image formation part 110 and wavelength separation part 123. The angle between the travel direction of first electromagnetic waves included in a first electromagnetic wave beam that has fallen on and passed through the first image formation part 110 and the travel direction of second electromagnetic waves included in a second electromagnetic wave beam that has fallen on and passed through the first image formation part 110 is less than or equal to a prescribed value.
Patent WO-2020031644-A1 (WO)
Title: Reactor
Inventor: AIKAWA SATOSHI
IPC: H01F37/00
Filed: 2019-07-17
Abstract: A reactor in which a wiring board having formed a main winding and a wiring board having formed a control winding are assembled in layers in a planar core, wherein a magnetic flux density formed by a control current through the control winding is made uniform, and the inductance of the reactor is set by means of the control current through the control winding. In the reactor, in which the wiring board having formed the main winding and the wiring board having formed the control winding are assembled in layers in the planar core, (a) a magnetic flux formed by the main winding and (b) a magnetic flux formed by the control winding are placed in the following state to thereby make the magnetic flux density formed by the control current uniform. A main winding current of high-frequency current flowing through the main winding forms, in a pair of inner legs, AC magnetic fluxes having opposite directions of magnetic fields cancelling each other out. A control current of DC current flowing through the control winding forms a DC magnetic flux having a uniform magnetic flux density in the pair of inner legs in which the AC magnetic fluxes have been cancelled out.
Patent WO-2020095485-A1 (WO)
Title: Deterioration evaluation method
Inventor: KOBAYASHI YUJI
IPC: G01N17/00
Filed: 2019-07-26
Abstract: A deterioration evaluation method including: a determination step in which shot peening conditions for applying a maximum residual stress to a target object comprising a metal material are determined; a first shot peening step in which first shot peening of the target object occurs under the shot peening conditions; a first measurement step in which a first residual stress in the target object after the first shot peening step is measured; a second shot peening step in which second shot peening of the target object after the first measurement step occurs under the shot peening conditions; a second measurement step in which a second residual stress in the target object after the second shot peening step is measured; and an evaluation step in which the deterioration of the target object is evaluated on the basis of the first residual stress and the second residual stress.
Patent WO-2020039868-A1 (WO)
Inventor: TAKATA MASAHIRO
IPC: C01G19/00
Filed: 2019-07-31
Abstract: 酢酸インジウム及び酢酸スズを、炭素数６～２０のカルボン酸を含む溶媒中で加熱して、インジウム及びスズを含む前駆体溶液を得る工程と、得られた前駆体溶液を、２３０℃～３２０℃の炭素数１４～２２のヒドロキシ基を有する溶媒中に滴下し、インジウムスズ酸化物粒子を含む反応液を得る工程と、を含み、前駆体溶液中の酢酸濃度が０．５質量％～６質量％の範囲である、インジウムスズ酸化物粒子の製造方法及び硬化性組成物の製造方法。
Patent WO-2020032040-A1 (WO)
Inventor: KOBAYASHI NORIYASU
IPC: G01N27/90
Filed: 2019-08-06
Abstract: 実施形態に係る渦電流探傷装置は、交流電流が供給されて被検査体１１に磁場の変化を与えることにより被検査体１１に渦電流を誘起可能な第１の励磁・検出器２０と、被検査体１１をはさんで第１の励磁・検出器２０の反対側に配置されて、被検査体１１に誘起された渦電流によって生じる反作用磁場の変化を検出可能な第２の励磁・検出器２１と、を有する。
Patent WO-2020045127-A1 (WO)
Inventor: MOHAN Awadh
IPC: G06Q30/06
Filed: 2019-08-16
Abstract: A media display system for a vehicle that includes a first image sensor, a second image sensor, and an electronic device. The first image sensor is inside the vehicle and the second image sensor is outside the vehicle. The electronic apparatus determines a direction-of-view of an occupant of the vehicle based on user information of the occupant. The electronic apparatus further controls the second image sensor to capture a portion of view surrounding the vehicle in the determined direction-of-view of the occupant. The portion of view comprises an object-of-interest of the occupant. The electronic apparatus further control display of an interactive content on a display medium based on a user input on the object-of-interest, wherein the interactive content comprises items related to the object-of-interest. The electronic apparatus further controls navigation through the object-of-interest and remote selection of the items in the interactive content.
Patent WO-2020050032-A1 (WO)
Inventor: TABARU TETSUYA
IPC: G05B19/42
Filed: 2019-08-21
Abstract: 外力を検知する外力検知部（１０２）と、外力に従うアーム（２）の動きを算出する従動制御演算部（１０３）と、アーム（２）の位置姿勢を算出する位置姿勢演算部（１０４）と、アーム（２）の位置姿勢が拘束目標に近づいているかを判定する近接判定部（１０５）と、解除操作を行ったかを判定する解除操作判定部（１０６）と、復帰条件を満たしたかを判定する復帰判定部（１０７）と、拘束制御の目標値を算出する目標値算出部（１０９）と、目標値へのアーム（２）の動きを算出する拘束制御演算部（１１０）と、判定部（１０５）～（１０７）による判定結果に基づき拘束制御演算部（１１０）の動作を切換える切換部（１０８）と、従動制御演算部（１０３）による算出結果と拘束制御演算部（１１０）による演算結果とを合成する合成部（１１１）と、合成結果に基づきアーム（２）を駆動する駆動制御部（１１２）とを備えた。
Patent WO-2021038729-A1 (WO)
Inventor: TSUMATORI HIROYUKI
IPC: A61N5/06
Filed: 2019-08-27
Abstract: Dispositif d'aide au traitement (1) comprenant : une unité d'imagerie (2) pour capturer une image de fluorescence (61) ; une unité d'acquisition de position (52) pour acquérir des informations de position d'imagerie (80) indiquant la position d'imagerie de l'image de fluorescence ; et une unité de génération d'image agrandie (53) pour générer une image agrandie (65) dans laquelle le champ d'imagerie de l'image de fluorescence est agrandi, par agencement d'une pluralité d'images de fluorescence acquises par l'unité d'imagerie sur la base des informations de position d'imagerie acquises par l'unité d'acquisition de position.
Patent WO-2020075556-A1 (WO)
Inventor: YOSHIDA AKIRA
IPC: B30B15/02
Filed: 2019-09-30
Abstract: This cushion material (1) for a hot press is equipped with a plate-shaped cushion material body and a surface material (3) provided on the obverse and reverse surfaces of the cushion material body. The surface material (3) includes a core layer (31) formed from a non-woven heat-resistant fiber material, and a surface resin layer (32) that covers the entire surface of the core layer. The core layer (31) has an air permeability of 5 cm 3 ∙cm -2 ∙s -1  or less and a bulk density of 0.8 g/cm 3  or higher.
Patent WO-2020129443-A1 (WO)
Inventor: SUZUKI NOBUKAZU
IPC: H04R1/02
Filed: 2019-11-06
Abstract: 第１音響再生部と第２音響再生部とを有し、第１音響再生部は、円筒状の筐体部と、筐体部の一方の端部における端面を加振する加振部とを有し、第２音響再生部は、スピーカーユニットと、スピーカーユニットから再生される音の放射方向を変更するディフューザーとを有し、筐体部、スピーカーユニット及びディフューザーが、所定の軸に対して略同軸となるように配置されており、ディフューザーにより、スピーカーユニットから再生される音の放射方向が第１音響再生部による音の放射方向と略同一方向となるように構成されている音響再生装置である。