baber/WOPTO huggingface dataset:
Patent WO-2019174011-A1 (WO)
Title: Data transmission method and device, and computer storage medium
Inventor: TANG HAI
IPC: H04W72/04
Filed: 2018-03-15
Abstract: Disclosed in the present invention are a data transmission method and device, and a computer storage medium, said method comprising: when a terminal determines that the CBR measurement values of all carriers on a first carrier set are higher than a threshold, determining a target carrier in the first carrier set and transmitting target data using the target carrier, or not transmitting the target data on any carrier; and when the terminal determines that the first carrier set and a second carrier set do not have the same carrier, determining a target carrier in the first carrier set and/or the second carrier set and transmitting the target data using the target carrier, or transmitting no target data on any carrier.
Patent WO-2018171567-A1 (WO)
Title: 播放媒体流的方法、服务器及终端
Inventor: YANG SHENGFEI
IPC: H04N21/8547
Filed: 2018-03-20
Abstract: 本申请公开了一种播放媒体流的方法、服务器及终端，属于通信领域。所述方法包括：终端向服务器发送携带有视频流分片的分片标识的获取请求，所述视频流分片是所述终端已接收的所述服务器发送的视频流中包括的视频流分片；所述服务器根据所述视频流分片的分片标识，获取所述视频流的起始时间；所述服务器根据所述起始时间获取所述视频流对应的音频流；所述服务器向所述终端发送所述音频流；所述终端接收所述音频流，播放所述视频流和所述音频流。本申请解决了相关技术中终端播放不出声音或者播放的声音与视频画面不一致的问题，保证终端播放的声音与视频画面一致。
Patent WO-2018196506-A1 (WO)
Title: 一种电极引出片及电池
Inventor: JIANG LUXIA
IPC: H01M50/533
Filed: 2018-03-20
Abstract: 一种电极引出片，所述电极引出片包括本体部和位于本体部上的熔断部，所述熔断部在电极引出片宽度方向上的横截面积小于所述本体部在电极引出片宽度方向上的横截面积，其中，所述电极引出片上设置有热管，所述热管邻近所述熔断部设置。同时，本发明还提供了一种电池，包含有本发明提供的电极引出片。本发明提供内的电极引出片，在本体部上邻近熔断部的位置设置有热管，电池正常工作时，在正常过流的过程中，虽然熔断部会因过流面积较小，阻值较大，产生一定的温升；但是，热管能够将这部分热量及时快速的导出，进行及时散热，降低温度的同时，也消除了因温升对电池正常使用的影响，避免熔断部在正常工作中异常熔断。
Patent WO-2018214660-A1 (WO)
Inventor: XIANG CHAOYU
IPC: G09G3/32
Filed: 2018-04-11
Abstract: 一种量子点发光二极管及其反向驱动模式，其中，所述量子点发光二极管的反向驱动模式为在每个驱动周期内，当量子点发光二极管不工作时，向所述量子点发光二极管发射至少一个用于消除势阱中的电荷的反向驱动信号，通过在量子点发光二极管不工作时，向其发射一个反向驱动信号，改变缺陷势阱的势垒，以加速限制和聚集于势阱中的电荷的消除，从而达到延长量子点发光二极管寿命的目的。
Patent WO-2019011052-A1 (WO)
Title: Switch information collection system and method
Inventor: WANG HONGTAO
IPC: H04L29/08
Filed: 2018-05-16
Abstract: Provided are a switch information collection system and method. The system comprises: an information collection apparatus for collecting switch information about switches and sending the switch information to an information transmission apparatus; the information transmission apparatus for sending, by means of a network, the switch information to a railway control centre; and the railway control centre for receiving the switch information about all the switches and analysing the switch information.
Patent WO-2019019795-A1 (WO)
Title: Method for preparing sacubitril intermediate
Inventor: XUE YI
IPC: C07C271/16
Filed: 2018-05-31
Abstract: Disclosed in the present invention is a synthesis method for a sacubitril intermediate, the synthesis method belonging to the chemical-pharmaceutical field and comprising the following steps: performing a reaction of glycine and di-tert-butyl dicarbonate as starting materials under alkaline conditions, to effect dehydrogenation and amino protection, then performing substitution, deprotection and salification by means of a "one-pot method" with a compound of formula II under the action of a chiral catalyst, so as to obtain a chiral intermediate compound of formula III. The compound of formula III is reduced, refined and salified to obtain a compound of formula IV, and the compound of formula IV and di-tert-butyl carbonate are subjected to amino protection to produce a target product (R)-tert-butyl (1-([1,1'-biphenyl]-4-yl)-3-hydroxypropane-2-yl)carbamate of formula I. The raw materials and reagents required for the synthesis method of the sacubitril intermediate provided in the present invention are easily obtained, the reaction conditions are mild, the overall yield is high, the cost is low, just two salification processes are needed to complete the refining process, the post-treatment operation is simple, and the product quality is reliable and stable, the whole process being very suitable for industrial production.
Patent WO-2018228313-A1 (WO)
Title: 信息传输方法、基站、移动终端及计算机可读存储介质
Inventor: CHEN LI
IPC: H04W36/30
Filed: 2018-06-11
Abstract: 本公开提供了一种信息传输方法、基站、移动终端及计算机可读存储介质。本公开的信息传输方法包括：将移动终端在随机接入过程中使用的目标频点的配置信息发送给移动终端，其中配置信息包括目标频点对应的时隙信息和/或目标频点的标识信息。
Patent WO-2019015438-A1 (WO)
Title: Device for fast imaging of tissue molecule
Inventor: WANG QIANG
IPC: A61B1/00
Filed: 2018-06-20
Abstract: A device for fast imaging of a tissue molecule (100) comprises a light transmitting unit (110), a diversion unit (120), a scanning unit (130), and a linear array detecting unit (160). The light transmitting unit (110) is used to transmit a linear light beam. The diversion unit (120) is used to divert the linear light beam and allows fluorescent light emitted by a sample to pass therethrough. The scanning unit (130) is used to adjust a direction of the diverted linear light beam to scan the sample line by line. The linear array detecting unit (160) is used to collect the fluorescent light. The device for fast imaging of a tissue molecule (100) adopts a linear light source (112) to excite a sample, uses a one-dimensional scanning unit to perform scanning with a linear light beam, and uses a linear array detecting unit (160) to detect the excited light of the sample, thereby realizing cofocusing in a one-dimensional direction. The linear light beam and the linear array detecting unit (160) are used in combination to perform imaging of a tissue molecule, thereby significantly increasing a speed of imaging the tissue molecule, and realizing real-time imaging. Moreover, the scanning unit (130) only performs one-dimensional scanning, thereby effectively increasing system stability.
Patent WO-2019227615-A1 (WO)
Inventor: WANG WEI
IPC: G06K9/00
Filed: 2018-07-12
Abstract: 一种校正发票图像的方法、装置、计算机设备和存储介质，其中方法包括：对待校正的发票图像进行黑白二值化处理得到第一图片（S1）；检测第一图片中的文字部分，并将检测得到的文字部分填充为空白图像以得第二图片（S2）；检测第二图片的边框（S3）；对待校正的发票图像中位于边框内的区域进行透视变换得到校正后的发票图片（S4）。
Patent WO-2019047622-A1 (WO)
Title: Sequence based signal processing method and apparatus
Inventor: QU BINGYU
IPC: H04B7/26
Filed: 2018-07-18
Abstract: Provided are a sequence based signal processing method and apparatus. The method comprises: determining a sequence used for satisfying a PUCCH transmitting a signal, wherein the sequence is a sequence {fn} comprising N elements, fn refers to an element in the sequence {fn}, and the determined sequence {fn} is a sequence satisfying a pre-set condition; and then respectively mapping the N elements in the sequence {fn} to N sub-carriers, and generating and sending a first signal. By means of the determined sequence, low interdependency between sequences can be maintained when a signal is transmitted using a PUCCH, while a relatively low PAPR value and CM value are maintained, thus satisfying a communication application environment where a PUCCH is used to transmit a signal.
Patent WO-2019029402-A1 (WO)
Title: Signal transmitting method and apparatus
Inventor: XIE XINQIAN
IPC: H04L5/00
Filed: 2018-07-31
Abstract: A signal transmitting method and an apparatus. The method comprises: receiving by a terminal device first information transmitted from a network device, the first information including at least one of indicating information of a channel number and indicating information of a channel grid value; determining by the terminal device a mapping mode of uplink subcarriers according to the first information; and transmitting by the terminal device an uplink signal to the network device according to the mapping mode of the uplink subcarriers. The mapping mode of the uplink subcarriers is a first mapping mode or a second mapping mode; the first mapping mode is that a center of the uplink subcarriers is mapped to a first frequency; the first frequency includes a frequency of the uplink subcarriers; the second mapping mode is that a center of the uplink subcarriers is mapped to a second frequency; and the second frequency differs from the first frequency by a deviation value. According to the method and the apparatus of the present application, the terminal device supports the two mapping modes, and can carry out uplink transmission after obtaining the mapping mode of the current subcarriers.
Patent WO-2019105100-A1 (WO)
Inventor: TANG JINPENG
IPC: G06T19/00
Filed: 2018-09-11
Abstract: L'invention concerne un procédé et un appareil de traitement de réalité augmentée, ainsi qu'un dispositif électronique, le procédé consistant à : déterminer un mode de mouvement actuel d'un utilisateur, et créer une scène virtuelle qui s'adapte au mode de mouvement actuel de l'utilisateur ; et acquérir des données de mouvement de l'utilisateur dans le mode de mouvement actuel, et associer celles-ci à la scène virtuelle. Le procédé et l'appareil, ainsi que le dispositif électronique, peuvent fournir une expérience d'utilisateur plus riche.
Patent WO-2020019426-A1 (WO)
Title: Liquid crystal panel comprising goa circuit, and driving method therefor
Inventor: CHEN SHUAI
IPC: G09G3/36
Filed: 2018-09-12
Abstract: A liquid crystal panel comprising a GOA circuit, and a driving method therefor. The GOA circuit comprises multiple cascaded single-stage GOA circuit units, and each of the single-stage GOA circuit units comprises a first pull-down holding circuit unit (501) and a second pull-down holding circuit unit (502). A first clock signal (CK) is input to a first control end of the first pull-down holding circuit unit (501), and a second clock signal (XCK) is input to a second control end of the second pull-down holding circuit unit (502), and a scan driving signal of a GOA circuit unit of a next-but-one stage (G(N+2)) is input to a pull-down circuit unit (400). The first clock signal (CK) and the second clock signal (XCK) are alternately input to pull-up circuit units (200) and downstream circuit units (300) in GOA circuit units of adjacent stages. The first clock signal (CK) and the second clock signal (XCK) have cycles of the same length. The second clock signal (XCK) is delayed with respect to the first clock signal (CK), so that the second clock signal (XCK) has a high potential during a first period (t1', t1) and a third period (t3', t3) in each high potential cycle of the first clock signal (CK), and a low potential during a second period (t2', t2) between the first period (t1', t1) and the third period (t3', t3).
Patent WO-2020051869-A1 (WO)
Inventor: LIU WENCHUAN
IPC: A45B5/00
Filed: 2018-09-14
Abstract: 自动折叠拐杖凳，包括拐杖及与之连接的凳子支架，拐杖包括手柄（1）及拐杖本体，手柄（1）设置于拐杖本体上端，拐杖本体上设有驱控装置、可在拐杖本体上滑动及转动的导套（6）及可在拐杖本体上转动的固定座（11）；凳子支架包括至少两根支撑杆，其中一根支撑杆的一端与导套（6）铰接，另一支撑杆的一端与固定座（11）铰接，支撑杆在中部互相铰接；驱控装置驱动导套（6）沿拐杖本体上下滑动及转动，驱控装置的控制按钮设置于拐杖本体上且靠近手柄（1）。
Patent WO-2020061812-A1 (WO)
Inventor: YANG MENGKE
IPC: H04L29/06
Filed: 2018-09-26
Abstract: Data exchange systems and methods are disclosed. An exemplary data exchange method may include providing, to a data exchange platform, a submission of organizational data representing a first organization. The method may also include providing, to the data exchange platform, a submission of enterprise data. The method may further include receiving, from the data exchange platform, an event indicating a request from a computer system of a second organization seeking access to the enterprise data. Additionally, the method may include preparing a response to the computer system of the second organization according to the received event. The method may further include establishing a communication channel with the computer system of the second organization to provide the response.
Patent WO-2020073394-A1 (WO)
Title: 一种对位销
Inventor: GUO DEPING
IPC: B65G49/06
Filed: 2018-11-05
Abstract: 一种对位销（1，3），用于对玻璃面板（2）进行接触对位，包括销帽（10，30）和销柱（11，31）。销柱（11，31）用于支撑销帽（10，30），销帽（10，30）固定于销柱（11，31）的端部，销帽（10，30）用于对玻璃面板（2）进行对位。其中，销帽（10，30）包括至少两层嵌套设置的子销帽（101，102，301，302），且子销帽（101，102，301，302）均用于对玻璃面板（2）进行对位。
Patent WO-2020082461-A1 (WO)
Title: Array substrate, display panel, and display device
Inventor: SHAN JIANFENG
IPC: H05K1/02
Filed: 2018-11-15
Abstract: An array substrate (100, 200, 300) comprises a display region (110) and a bonding region (130, 230, 330). The bonding region (130, 230, 330) is disposed around the display region (110). The bonding region (130, 230, 330) of the array substrate (100, 200, 300) is provided with at least one pad (150, 250). The at least one pad (150, 250) comprises a plurality of first gold fingers (151, 251, 351) spaced apart and arranged in parallel. Intervals between adjacent first golden fingers (151, 251, 351) in the same pad (150, 250) are not entirely the same.
Patent WO-2020042416-A1 (WO)
Inventor: LI WENXING
IPC: F21V13/00
Filed: 2018-12-06
Abstract: Provided is a high voltage LED panel lamp, comprising a light-emitting assembly. The light-emitting assembly comprises a light guide plate (1), an LED light bar (2) and a light-transmitting insulating dielectric portion (3), wherein an LED lamp (4) on the LED light bar (2) is arranged in a direction toward the light guide plate (1), and the light-transmitting insulating dielectric portion (3) is arranged between the LED lamp (4) and an end face of the light guide plate (1). The light-transmitting insulating dielectric portion (3) has an electrical insulation property, improving the insulativity, such that the same requirement of a low voltage can be achieved without needing to use a drive power supply with the same level of electrical isolation performance or a housing with the same insulation performance in the prior art, that is to say, a drive power supply with lower cost can be used, thus reducing the costs.
Patent WO-2020107561-A1 (WO)
Title: Array substrate and manufacturing method thereof, and display device
Inventor: HUANG BEIZHOU
IPC: G02F1/1343
Filed: 2018-12-19
Abstract: A manufacturing method of an array substrate (10) comprises: providing a substrate (1); sequentially forming, at the substrate (1), a gate (21), a gate insulation layer (22), an active layer (23), source and drain metal layers (24, 25) and a protection layer (26) of a thin film transistor (2); and applying a photoresist for formation of a pixel electrode, and patterning the same to form a pixel electrode (3), wherein the pixel electrode (3) is not formed at the protection layer (26), and the pixel electrode (3) is directly connected to the drain metal layer (25).
Patent WO-2020118765-A1 (WO)
Inventor: PENG ZHEWEI
IPC: H01L51/00
Filed: 2018-12-24
Abstract: 一种柔性显示面板及其制作方法。柔性显示面板包括柔性基板(10)及设于柔性基板(10)上的显示功能层(20)，柔性基板(10)内含有金属有机骨架化合物(MOF)的紫外光吸收粒子(15)，紫外光吸收粒子(15)能够将LLO制程中多余的激光能量吸收，防止LLO制程中多余的激光能量灼伤柔性基板上的显示功能层(20)，从而可有效提升柔性显示面板的LLO工艺良率，降低生产成本，且具有超大比表面积的金属有机骨架化合物(MOF)能够使紫外光吸收粒子与激光之间形成巨大接触面，从而在不增加柔性基板(10)厚度的情况下，也能够达到较好的紫外激光吸收效果，有利于柔性显示面板的轻薄化。
Patent WO-2020052160-A1 (WO)
Title: Mist outlet bend and tower fan
Inventor: LIN HAILI
IPC: F24F6/12
Filed: 2018-12-25
Abstract: A mist outlet bend (200), comprising a bend body (210), wherein a humidifying air flue (220) is arranged in the bend body (210), and a mist outlet (230) is formed in the end of the bend body (210) and communicates with the humidifying air flue (220). Water guide grooves (232) are formed in the inner side surface of the joint between the mist outlet (230) and the humidifying air flue (220), so as to guide water drops accumulated at the mist outlet (230) to the humidifying air flue (220). The mist outlet bend (200) may be applied to a tower fan. Mounting ribs (250) on the mist outlet bend (200) and bend check ribs (120) of a housing (100) cooperate to facilitate screw fixing. Under the condition of the same level of mounting reliability, the number of screws is reduced, and the cost is reduced. The mounting is simple and fast, and the production efficiency is improved. In addition, rows of water guide grooves (232) are formed in the inner side surface of the mist outlet (230) of the mist outlet bend (200), so that water drops coagulated at the mist outlet (230) may flow back to a water tank along the water guide grooves (232), and the phenomena of condensation and outward water spraying at the mist outlet (230) are eliminated.
Patent WO-2019134698-A1 (WO)
Inventor: JIANG LUXIA
IPC: H01M10/613
Filed: 2019-01-07
Abstract: A battery cell (100) comprises a housing (3), a cover plate (4) and an electrode core. The housing (3) has an opening (32) and is provided with a housing expansion cavity (31) protruding outward. The opening (32) is covered by the cover plate (4). The electrode core is disposed in the housing (3) and comprises an electrode core body (1) having a first expansion end (12). The first expansion end (12) is provided with a cooling structure fitting region (121) and a first expansion region (122) protruding with respect to the cooling structure fitting region (121). The first expansion region (122) is at least partially accommodated in the housing expansion cavity (31), and the cooling structure fitting region (121) is recessed with respect to the first expansion region (122) to form a cooling structure installation space.
Patent WO-2019137370-A1 (WO)
Inventor: HUANG HSIEN-JEN
IPC: B23B27/10
Filed: 2019-01-08
Abstract: 一种车刀，具有一刀头部（20）、一刀颈部（30）及一刀杆部（40），车刀内贯设有一通道（50），该通道贯通该刀头部、该刀颈部及该刀杆部，该通道用来灌注冷却液，而冷却液是自该刀杆部灌入，该刀头部是用来对工件进行加工，而该刀颈部具有一刀颈径长（34），该刀杆部具有一刀杆径长（42），该刀颈径长大于该刀杆径长，在冷却液自该通道渗出时，冷却液会沿着该刀杆部的外周面流至该刀颈部，由于该刀颈部的该刀颈径长大于该刀杆部的该刀杆径长，使渗出的冷却液会被该刀颈部阻挡，进而防止渗出的冷却液流至该刀头部并回流至该刀柄部，不仅能够达成防止该刀头部锈蚀的缺陷，更能够延长该车刀的使用寿命。
Patent WO-2019227940-A1 (WO)
Title: Flexible display apparatus manufacturing method and flexible display apparatus
Inventor: GONG KUI
IPC: H01L51/00
Filed: 2019-01-10
Abstract: A flexible display apparatus manufacturing method and a flexible display apparatus. The flexible display apparatus manufacturing method comprises: forming a conductive heating layer (120) having a first microstructure pattern on a rigid substrate (110); forming a flexible base layer (130) on the conductive heating layer (120), and preparing a display device (140) on the flexible base layer (130); heating the conductive heating layer (130), separating the flexible base layer (130) from the conductive heating layer (120), and making the side of the separated flexible base layer (130) distant from the display device (140) have a second microstructure pattern. The damage of laser energy to the display device can be avoided, thereby improving the service life of the display device. Moreover, the side of the prepared flexible base layer distant from the display device has the microstructure pattern, thereby facilitating the improvement of light extraction efficiency.
Patent WO-2019214283-A1 (WO)
Inventor: DU YING
IPC: H04W72/04
Filed: 2019-01-11
Abstract: 本申请公开了一种上行传输功率分配方法和移动通信设备，所述方法包括以下步骤：获取指示信息，在第一传输时间间隔发送物理上行共享信道，对应的解调参考信号位于第二传输时间间隔；根据各信道功率分配优先级、第一传输时间间隔各信道发送功率要求值、最大发送功率，确定物理上行共享信道功率分配值；为解调参考信号设定功率分配优先级；以解调参考信号作为第二传输时间间隔内的信道，根据所述物理上行共享信道的功率分配值，进一步确定解调参考信号功率分配值。所述设备用于本申请任意一项实施例所述方法，包含网络设备和至少一个终端设备。本发明解决物理上行共享信道和解调参考信号在不同的传输时间间隔时对信道功率进行分配的问题。
Patent WO-2020124716-A1 (WO)
Title: Display panel and manufacturing method thereof
Inventor: YUAN WENHAO
IPC: H01L21/336
Filed: 2019-01-15
Abstract: A display panel (200) and a manufacturing method thereof. A protection layer (115) is formed between an active layer (113) and a source/drain (112), thereby protecting the active layer (113) positioned under the source/drain (112) from being etched when patterning the source/drain (112), and accordingly increasing the yield and quality of a product.
Patent WO-2019157983-A1 (WO)
Title: Transaction processing method and platform
Inventor: LAN JIE
IPC: G06Q30/02
Filed: 2019-02-01
Abstract: A transaction processing method and platform. The method comprises: after a coupon is issued to a user, generating an issuance voucher for the coupon (101); initiating a coupon write-off request under the condition that the coupon is written off (102); marking the issuance voucher of the coupon (103); and writing off the issuance voucher for the marked coupon asynchronously (104). The solution can shorten the waiting time of a user transaction and improve the user experience.
Patent WO-2020168549-A1 (WO)
Title: Method and router for label switched path traceroute
Inventor: ZHAO JINFENG
IPC: H04L45/50
Filed: 2019-02-22
Abstract: The present disclosure provides a method (200) in a router for Label Switched Path, LSP, traceroute. The method (200) includes: receiving (210) an echo request packet containing a label stack; determining (220) from the label stack that forwarding to a downstream router is to be based on a binding segment identifier; identifying (230) a plurality of segments included in a binding segment associated with the binding segment identifier; and transmitting (240) an echo reply packet to a router originating the echo request packet, the echo reply packet containing information indicating a presence of the binding segment identifier in the label stack and indicating a segment identifier associated with each of the plurality of segments.
Patent WO-2019228103-A1 (WO)
Inventor: WANG YANFEI
IPC: H04W8/02
Filed: 2019-04-23
Abstract: 本发明提供一种网络附着控制方法、装置和移动终端，涉及移动通信技术领域。本发明实施例提供的网络附着控制方法、装置和移动终端，在本轮附着过程中，如果接收到目标网络发送的去附着消息，检查附着失败的原因是否为PTI冲突。如果附着失败的原因为PTI冲突，则重新发起下一轮附着过程，以使移动终端完成网络附着过程。因而可以减少因事务标识冲突而导致移动终端无法附着至目标网络的现象，提高用户使用移动网络的通讯体验。
Patent WO-2019228170-A1 (WO)
Title: Octahydropentene compound, preparation method therefor, and pharmaceutical application thereof
Inventor: CHEN XIANGYANG
IPC: A61P31/12
Filed: 2019-05-10
Abstract: Disclosed are an octahydropentene compound for regulating or inhibiting indoleamine 2,3-dioxygenase (IDO) activity, a preparation method therefor, and a pharmaceutical application thereof. Specifically, disclosed are a compound of formula (I) and pharmaceutically acceptable salts thereof, a pharmaceutical composition containing the compound or pharmaceutically acceptable salts thereof, a method for treating and/or preventing IDO-mediated related diseases, especially tumors, by applying the compound or pharmaceutically acceptable salts thereof, and a preparation method for the compound or pharmaceutically acceptable salts thereof. Also disclosed is use of the compound or pharmaceutically acceptable salts thereof or a pharmaceutical composition containing the compound or pharmaceutically acceptable salts thereof in the preparation of drugs for treating and/or preventing IDO-mediated related diseases, especially tumors. The definition of each substituent in formula (I) is the same as that in the description.
Patent WO-2020057150-A1 (WO)
Inventor: YU XIN
IPC: H04N13/363
Filed: 2019-05-15
Abstract: A projection system, comprising a first light source for an array light source, the first light source being divided into a plurality of illumination areas, and each illumination area may be independently controlled so as to generate a first illumination light field of which the brightness and darkness may be modulated; a second light source comprises an illumination unit and a light-directing unit; the light-directing unit redistributes illumination light emitted by the illumination unit so as to generate a second illumination light field of which the brightness and darkness may be modulated, wherein the first and second illumination light fields overlap to generate a compound light field. Also provided by the present invention is a projection display method. By employing the present invention, the goal of simultaneously increasing image peak value brightness and lowering image dark field brightness is achieved, and a projection system that has a high contrast ratio is thus obtained.
Patent WO-2020007256-A1 (WO)
Title: Crystal forms of oxypyridine amide derivative and preparation method therefor
Inventor: MA YAHUI
IPC: A61P11/00
Filed: 2019-07-01
Abstract: The present invention relates to crystal forms of an oxypyridine amide derivative and a preparation method therefor. In particular, the present invention relates to crystal forms A, B, C, D, E and F of a compound represented by formula (I) and a preparation method therefor. The crystal forms of the compound represented by formula (I) as described in the present invention have good crystal form stability and may be better for clinical use.