baber/WOPTO huggingface dataset:
Patent TW-202133503-A (TW)
Title: Electrical connector and assembly thereof
Inventor: LV LAI-HANG
IPC: H01R13/46
Filed: 2021-01-07
Abstract: An electrical connector and assembly thereof, the electrical connector includes an insulative housing, a set of conductive terminals, and a metal outer shell. The insulative housing has a receiving slot and a pair of first and second side walls. Each of the first and second side walls has a set of cavities, each conductive terminal has a contacting portion received in the corresponding cavity and protruding into the receiving slot. The metal outer shell has a latch wall spaced apart from the first side wall and having a latch slot. The electrical connector further includes a metal inner shell locating between the first side wall and latch wall and covering the outer surface of the first side wall. A mating slot is formed between the latch wall and the metal inner shell. Therefore, the shielding effect is improved, and the structural strength of the electrical connector is enhanced.
Patent TW-202143710-A (TW)
Title: 視訊寫碼中之色度量化
Inventor: TOURAPIS ALEXANDROS
IPC: H04N19/126
Filed: 2014-08-25
Abstract: 本發明提供一種用信號發送特定於量化群組之額外色度量化參數(QP)偏移值的方法，其中每一量化群組明確地規定其自身的色度QP偏移值集合。或者，在圖像之標頭區域中規定色度QP偏移值之可能集合之一表，且每一量化群組使用一索引自該表中選擇用於判定量化群組自身的色度QP偏移值集合的一項目。除針對視訊寫碼階層之較高層級已規定之色度QP偏移值之外，亦接著使用該等量化群組特定色度QP偏移值來判定量化群組內之區塊之色度QP值。
Patent TW-202202000-A (TW)
Title: Plasma processing apparatus and matching method
Inventor: SATO SHO
IPC: H05H1/46
Filed: 2021-02-05
Abstract: A plasma processing apparatus includes a chamber in which a plasma processing is performed, an electrode that supplies a radio-frequency power to the chamber for the plasma processing; a radio-frequency power supply electrically connected to the electrode, and a matching device connected between the radio-frequency power supply and the electrode. The radio-frequency power supply supplies one of a modulated wave and a continuous wave of a radio-frequency power to the electrode. The modulated wave is generated by alternately increasing or decreasing the power level of the radio-frequency power. The matching device gradually changes a load impedance to a target impedance during a period in which the continuous wave is supplied before or after the power supplied from the radio-frequency power supply to the electrode is switched from one of the modulated wave and the continuous wave to the other.
Patent TW-202233254-A (TW)
Inventor: CHAO HISN-KUO
IPC: A61L2/10
Filed: 2021-02-26
Abstract: 一種結合防疫及抗菌抗病毒的智能行動護理系統，包括一支撐架、一殼體、一電路單元、一螢幕及一燈組。殼體設置於支撐架上，支撐架用以支撐殼體位於預定高度，電路單元設置於殼體的內部，螢幕設置於殼體的前側。殼體為塑膠殼體，是以塑膠材料及抗菌材料(如銀離子或銅離子)混合射出成型，使殼體具有抑菌效果。螢幕表面亦可塗覆抗菌材料，以提供抑菌效果。燈組設置於殼體的底側，燈組包含紫外線光源及照明光源，能切換選擇使用紫外線光源或照明光源，當選擇使用紫外線光源時，能朝下方射出紫外線光，以提供抗菌、抗病毒的效果。
Patent TW-202126534-A (TW)
Title: Electronic shift control device for a bicycle derailleur
Inventor: CAHAN RACHEL
IPC: B62M9/122
Filed: 2018-12-06
Abstract: A control device for a bicycle has a housing configured to be mountable to the bicycle and sized and shaped to be grasped by a user’s hand and a battery receptacle positioned on the housing. The housing has a base portion and an extension portion. The base portion includes first and second ends, a downward facing side, an upward facing side, an inward facing side, an outward facing side, and a handlebar clamp disposed at the first end. A battery receptacle is positioned on a first side, which can be the downward facing side, of the base portion of the housing. An accessory port can be positioned on a second side of the base portion of the housing, different from the first side, and which can be the inward or outward facing side of the base portion of the housing.
Patent TW-202200088-A (TW)
Title: Manufacturing method for an orthodontic appliance
Inventor: HUANG CHI-CHING
IPC: A61C7/08
Filed: 2021-03-17
Abstract: The invention relates to a manufacturing method of an orthodontic appliance. The orthodontic appliance can be used for dental correction. The manufacturing method needs to obtain the tooth position structure of the upper and lower jaw, read and display the tooth position structure through the dental software, connect the multiple pits of the upper teeth into an arc of the upper occlusal line, connect the multiple tooth tips of the lower teeth into an arc of the lower occlusal line, and then generate a correction arc through the upper and lower occlusal line, so as to generate the maxillary correction slot and the lower jaw corresponding to the cusp In order to correct the malocclusion of dental 
patients, the maxilla and mandible corresponding parts of the orthodontic socket are generated.
Patent TW-202138298-A (TW)
Inventor: ZHU BIN
IPC: C01B33/145
Filed: 2021-04-06
Abstract: 本發明涉及半導體化學機械拋光技術領域，具體公開一種矽溶膠及其製備方法。一種矽溶膠，膠粒的締合度為1.2-5.0，該膠粒的低場核磁濕法比表面積與乾法氣體吸附BET比表面積之比S N 
/S B 
＞3.5。該矽溶膠製備方法，包括如下步驟：配製複數組烷氧基矽烷質量含量≥95%的酸性組合液及含有鹼催化劑、高純水及有機溶劑的母液；將一組該酸性組合液加入到該母液中，得第一矽溶膠；至少一次地向所得第一矽溶膠中依次加入高純水、一組該酸性組合液，得到矽溶膠一次液；經濃縮及溶劑置換，得到矽溶膠產品。本發明提供的製備方法通過調控烷氧基矽烷的酸性組合液的酸值，並調節加入的各組酸性組合液的酸值的變化，實現了矽溶膠顆粒形態的可控，得到了球形及非球形的矽溶膠，所得矽溶膠的一次固含＞10%，金屬離子含量＜1ppm。
Patent TW-202140934-A (TW)
Title: Impeller, centrifugal blower, and air-conditioning device
Inventor: TERAMOTO TAKUYA
IPC: F04D29/30
Filed: 2021-04-08
Abstract: An impeller comprises: a rotary-driven main plate; an annular side plate that is arranged facing the main plate and that forms a gas intake port; and a plurality of vanes that are connected to the main plate and the side plate, the plurality of vanes being arrayed in the circumferential direction around the rotational axis of the main plate. Each of the plurality of vanes has an inner circumferential end positioned on the rotational-axis side in the radial direction centered on the rotational axis, an outer circumferential end positioned further toward the outer circumferential side than the inner circumferential end in the radial direction, a sirocco blade part that includes the outer circumferential end and that constitutes a forward-facing vane formed at an angle such that the exit angle thereof is greater than 90 degrees, and a turbo blade part that includes the inner circumferential end and that constitutes a rearward-facing vane. In the sirocco blade part of each of the plurality of vanes, the blade thickness of the end part on the side facing the intake port is less than the blade thickness of a base part connected to the main plate, and in the blade shape configured from the end part on the side facing the intake port, a first blade thickness on the inner-circumferential side is greater than a second blade thickness on the outer-circumferential side.
Patent TW-202239433-A (TW)
Inventor: LIAO YU-TE
IPC: A61M15/00
Filed: 2021-04-12
Abstract: 本發明之吸入器輔助裝置，係包括具有用以結合吸入器之套管以及與該套管連通之氣艙的套件主體、設於該氣艙中且具有間隔設置之開路電路以及導電薄膜之開關組件以及設於該套件主體內且電性連接該開路電路之電子組件，其中，於使用者對該吸入器進行吸氣時，氣體進入氣艙內之氣流帶動該導電薄膜接觸該開路電路，以使該開路電路導通而啟動該電子組件，是以，本發明提供使用者使用結合該吸入器輔助裝置之吸入器時，不僅能自動啟動電子組件，同時可避免該電子組件誤啟動。
Patent TW-202205792-A (TW)
Inventor: UMINO HIKARU
IPC: H02P8/10
Filed: 2021-04-12
Abstract: The present invention provides a motor control apparatus for driving a two-phase synchronous motor. The motor control apparatus comprises: a control current waveform generating means for generating a control current waveform which is obtained by overlapping a basic sine wave and a reluctance torque correction waveform used to suppress the fluctuation of the reluctance torque of the two-phase synchronous motor; and a current control signal generating means for generating a current control signal used to supply a current to a winding of the two-phase synchronous motor, according to the control current waveform generated by the control current waveform generating means. The reluctance torque correction waveform may have a waveform, which has a frequency that is twice the frequency of the basic sine wave, and whose original waveform, that a phase thereof is matched with the basic sine wave, is full-wave rectified to have a same sign or an opposite sign as that of the basic sine wave.
Patent TW-202243452-A (TW)
Inventor: CHEN KUAN-CHENG
IPC: H04L9/32
Filed: 2021-04-27
Abstract: 本發明提供一種應用系統及其操作方法與輸入裝置。應用系統包括遠端伺服裝置、本地端輸入裝置以及本地端計算裝置。遠端伺服裝置提供應用服務。本地端輸入裝置通過通訊網路而與遠端伺服裝置建立第一連接。本地端輸入裝置產生輸入資訊以控制所述應用服務。本地端輸入裝置通過通訊網路將輸入資訊所對應的輸入資料傳輸給遠端伺服裝置。本地端計算裝置通過通訊網路而與遠端伺服裝置建立第二連接。遠端伺服裝置基於所述輸入資料通過通訊網路將所述應用服務的影像幀傳輸給本地端計算裝置。本地端計算裝置顯示影像幀。
Patent TW-202132795-A (TW)
Title: Method and system for thermal control of devices in an electronics tester
Inventor: JOVANOVIC JOVAN
IPC: G01R31/26
Filed: 2017-01-06
Abstract: A tester apparatus is provided. Slot assemblies are removably mounted to a frame. Each slot assembly allows for individual heating and temperature control of a respective cartridge that is inserted into the slot assembly. A closed loop air path is defined by the frame and a heater and cooler are located in the closed loop air path to cool or heat the cartridge with air. Individual cartridges can be inserted or be removed while other cartridges are in various stages of being tested or in various stages of temperature ramps.
Patent TW-202229737-A (TW)
Inventor: LIANG YIN
IPC: F16B12/10
Filed: 2021-04-29
Abstract: 一種多層連接結構，包括第一殼體、第二殼體、第三殼體、第一連接件及第二連接件。第一殼體包括定位部、限位部及固定部。第二殼體包括定位槽、限位槽、第一通孔及第一安裝孔，限位部用於嵌入限位槽內，定位部用於嵌入定位槽內。第三殼體包括與第一通孔對應的第二安裝孔和與第一安裝孔對應的固定孔，固定部用於穿過第一通孔並伸入第二安裝孔。第一連接件用於由第一安裝孔伸入固定孔以使第二殼體與第三殼體連接。第二連接件用於經由第二安裝孔伸入並與固定部連接以使以上三殼體連接。本發明提供的多層連接結構的結構簡單，拆裝方便快捷。
Patent TW-202139348-A (TW)
Title: Method and apparatus for clamping and declamping substrates using electrostatic chucks
Inventor: YE ZHENG JOHN
IPC: H02N13/00
Filed: 2016-12-07
Abstract: Techniques are disclosed for methods and apparatuses of an electrostatic chuck suitable for operating at high operating temperatures. In one example, a substrate support assembly is provided. The substrate support assembly includes a substantially disk-shaped ceramic body having an upper surface, a cylindrical sidewall, and a lower surface. The upper surface is configured to support a substrate thereon for processing the substrate in a vacuum processing chamber. The cylindrical sidewall defines an outer diameter of the ceramic body. The lower surface is disposed opposite the upper surface. An electrode is disposed in the ceramic body. A circuit is electrically connected to the electrode. The circuit includes a DC chucking circuit, a first RF drive circuit, and a second RF dive circuit. The DC chucking circuit, the first RF drive circuit and the second RF drive circuit are electrically coupled with the electrode.
Patent TW-202147871-A (TW)
Title: Passive positioning with analog beamforming
Inventor: YERRAMALLI SRINIVAS
IPC: H04W64/00
Filed: 2021-05-07
Abstract: Techniques are provide for passive positioning of user equipment (UE) with analog beamforming. An example method for positioning a user equipment includes receiving a first positioning reference signal from a first base station at a first time, receiving a first timing difference value based on two or more positioning reference signals transmitted from the first base station, receiving a second positioning reference signal from a second base station at a second time, receiving a second timing difference value based on two or more positioning reference signals transmitted from the second base station, and determining a time difference of arrival between the first positioning reference signal and the second positioning reference signal based at least in part on the first timing difference value and the second timing difference value.
Patent TW-202248012-A (TW)
Title: Coating for curtain, and honeycomb curtain including the same
Inventor: CHENG LI-MING
IPC: D06N3/00
Filed: 2021-06-07
Abstract: A coating for curtain is used to solve the problem that the conventional coating with insufficient whiteness such that the honeycomb curtain with the conventional coating has color display effect to be improved. The coating includes a substrate layer of plastics, an aluminum layer formed on a surface of the substrate layer of plastics, a primer layer formed on a surface of the aluminum layer, and a white layer formed on a surface of the primer layer. The aluminum layer locates between the substrate layer of plastics and the primer layer, and the primer layer locates between the aluminum layer and the white layer. A honeycomb including the coating is also disclosed.
Patent TW-202210530-A (TW)
Title: 用於使聚合物沉澱的方法
Inventor: HO KAM PIU
IPC: C08F6/12
Filed: 2021-06-16
Abstract: 本發明提供一種藉由向第一懸浮液中添加沉澱劑以形成第二懸浮液來使聚合物沉澱的方法，其中第一懸浮液包含聚合物和水性溶劑，以及其中聚合物包含共聚物，該共聚物包含衍生自含酸基團的單體的結構單元和衍生自含疏水基團的單體的結構單元。開發本文揭露之用於使聚合物沉澱的方法以引發第二懸浮液中的聚合物與水性溶劑之間的鍵的破壞及/或斷裂。這伴隨著由聚合物鏈的分子間和分子內的相互作用導致的聚合物的結構轉變，使得聚合物沉澱。本發明的方法避免複雜的分離過程和聚合物的污染、實現優異的材料回收、且允許在短時間內實現聚合物的沉澱。本文揭露在電池電極中沉澱聚合物黏結劑的方法的應用。
Patent TW-202200994-A (TW)
Inventor: TACHI TOMOHIRO
IPC: G01N21/88
Filed: 2021-06-22
Abstract: The invention provides a defect inspecting device that can reduce inspection time as much as possible while maintaining the inspection accuracy when it is used for inspecting defect of a work based on an image of the work. The defect inspecting device comprises a camera 10 that acquires a plurality of images for the same inspection area, a defect candidate extraction unit 105 that extracts a defect candidate area from each of the plurality of images, and a feature amount calculation unit 106 that calculates the feature amount with respect to the entire image of the area, corresponding to each defect candidate area of at least two images out of a plurality of images. The plurality of images includes images in different lighting conditions, and the camera 10 is fixed so as not to move relative to the work W until all the images are acquired when acquiring the plurality of images.
Patent TW-202301889-A (TW)
Title: Player and play method
Inventor: XU XIN
IPC: H04N21/24
Filed: 2021-06-24
Abstract: Disclosed are a player and a play method that are capable of displaying image and/or playing music according to a ranging result. The player has a wireless communication function for establishing a wireless connection with a portable device. The player is configured to obtain a received signal strength index (RSSI) of the portable device according to a wireless signal from the portable device, then calculate an estimation distance between the player and the portable device according to the RSSI to obtain the ranging result, and then determine at least one play parameter such as the brightness or the volume of the player according to the ranging result.
Patent TW-202203451-A (TW)
Inventor: CHEN RUEI-CHI
IPC: H01L31/0203
Filed: 2021-06-30
Abstract: 本發明係有關一種感測模組之結構及其製造方法，其先提供一基板，用以依序設置一感測器、一膠體、一光學轉換元件於該基板之第一表面上，且該膠體圍繞於該感測器之周圍，並接合該基板與該光學轉換元件，最後藉由一光源經該基板之一第二表面照射該膠體，使該膠體固化，因而取得該感測模組之結構。
Patent TW-202304050-A (TW)
Title: External connection installation for direct access of internal cell block electrodes of battery modules
Inventor: WU YUNG-CHUN
IPC: H01M50/519
Filed: 2021-07-05
Abstract: An external connecting device for cell electrodes of battery module includes at least one cell electrode connecting element is installed to a battery case mechanism of an electric vehicle or various electric vehicles. The cell electrode connecting element is electrically connecting to each cell electrode of a battery module. Further, one or more cell electrode external connectors installed in a position accessible from the outside of the battery case and are electrically connected to the cell electrode connecting element. In this way, the maintenance personnel can measure the voltage of each cell in the battery case through the cell electrode external connector without having to disassemble the battery case, and can directly control the individual charging or discharging of the cells to achieve the effect of directly balancing the voltage of each cell.
Patent TW-202302187-A (TW)
Title: Inversion machine wherein the auxiliary inversion mechanism cannot rotate when the inversion machine is in the locking state and the auxiliary inversion mechanism can rotate relative to the main support in the rotatable state, thereby effectively improving the safety of the inversion machine
Inventor: WANG LUO-PING
IPC: A63B23/02
Filed: 2021-07-06
Abstract: An inversion machine is suitable for assisting a user to stand upside down and comprises a main support and an auxiliary inversion mechanism. The auxiliary inversion mechanism includes an auxiliary inversion unit assembled on the main support, and a pinch unit and a locking unit respectively disposed on the auxiliary inversion unit. The locking unit is detachably connected to the main support. The auxiliary inversion mechanism can be switched between a locking state and a rotatable state relative to the main support. In the locking state, the locking unit is connected to the main support and the auxiliary inversion mechanism cannot rotate. In the rotatable state, the pinch unit can be engaged with the locking unit and the locking unit is disengaged from the main support so that the auxiliary inversion mechanism can rotate. Utilizing the design of the pinch unit and the locking unit, the user can only stand upside down when the inversion machine is in the rotatable state, thereby effectively improving the safety. The main support has a first locking member on the bottom side. The auxiliary inversion unit of the auxiliary inversion mechanism includes a backstay element set and an extension element set. The backstay element set is pivotally assembled on the main support. The extension element set is connected to the backstay element set and extends downward along a longitudinal direction. The locking unit of the auxiliary inversion mechanism includes a fixing member, a moving member, an elastic member, and a second locking member. The fixing member is fixed to the extension element set, the moving member can be moved relative to the fixing member, and the second locking member extends downward from the bottom side of the moving member.
Patent TW-202305717-A (TW)
Title: Smart investment system and smart investment method with a smart investment server to determine whether the balance of the special account is not less than the set investment amount every trading day or not
Inventor: DU YAN-HUI
IPC: G06Q40/04
Filed: 2021-07-20
Abstract: A smart investment system is suitable for communicating with a client electronic device operated by a client, and includes an account host and a smart investment server. The account mainframe stores a special investment account data related to a special investment account of the client, and the special investment account data includes a special account balance. The smart investment server receives a set investment amount and a set investment portfolio from the client electronic device. The smart investment server determines whether the balance of the special account is not less than the set investment amount every trading day or not. When it is judged that the balance of the special account is not less than the set investment amount, the smart investment server executes an automatic investment program on the same day, and the automatic investment program is related to investing the set investment amount from the special investment account in the set investment portfolio.
Patent TW-202141204-A (TW)
Inventor: TEL WIM TJIBBO
IPC: G03F7/20
Filed: 2018-09-20
Abstract: Disclosed herein is a method for determining one or more control parameters of a manufacturing process comprising a lithographic process and one or more further processes, the method comprising: obtaining an image of at least part of a substrate, wherein the image comprises at least one feature manufactured on the substrate by the manufacturing process; calculating one or more image-related metrics in dependence on a contour determined from the image, wherein one of the image-related metrics is an edge placement error, EPE, of the at least one feature; and determining one or more control parameters of the lithographic process and/or said one or more further processes in dependence on the edge placement error, wherein at least one control parameter is determined so as to minimize the edge placement error of the at least one feature.
Patent TW-202304852-A (TW)
Title: Amethod for preparing phthalonitrile compound
Inventor: ROH KEE-YOON
IPC: C07C255/51
Filed: 2021-07-23
Abstract: An embodiment of the invention provides a method for preparing a phthalonitrile compound comprising: step (a), preparing a mixture comprising a phthalonitrile compound and a nitrile compound; and step (b), reacting above-mentioned mixture, wherein the above-mentioned step (b) is carried out under supercritical conditions of the above-mentioned nitrile compound.
Patent TW-202208285-A (TW)
Title: Method and apparatus for treating cyanogen-containing water
Inventor: MOMOI KENTAROU
IPC: C02F1/70
Filed: 2021-08-19
Abstract: According to the present invention, a cyanogen-containing water which contains a metal cyano complex and a large amount of inorganic carbon is stably and efficiently treated to a high degree, thereby obtaining a high-quality treated water which is sufficiently reduced in the total cyanogen concentration. According to the present invention, a pH regulator is added to a cyanogen-containing water which contains a metal cyano complex and 100 mg-C/L or more of inorganic carbon in terms of the TIC measurement value as determined by a TOC meter set forth in JIS K0102 section 22, so that the pH of the cyanogen-containing water is adjusted to 7.5 or less, and a ferrous salt is subsequently added thereto as a reducing agent together with a copper compound, and the thus-formed insoluble cyanogen salt is separated.
Patent TW-202218878-A (TW)
Title: Polarizing plate with attached hard coat layer and image display device including polarizing plate with attached hard coat layer
Inventor: IKESHIMA HIROMI
IPC: B32B33/00
Filed: 2021-08-25
Abstract: Provided is a polarizing plate with an attached hard coat layer in which chipping and cracking of the hard coat layer are remarkably suppressed at a deformed-shape machining section. A polarizing plate with an attached hard coat layer according to an embodiment of the present invention has: a polarizer; a protective layer; an intermediate layer with a thickness of 0.1 [mu]m to 8 [mu]m; and a hard coat layer with a thickness of 5 [mu]m or less in that order. The polarizing plate with an attached hard coat layer has a deformed shape other than a rectangular shape. The shearing fracture strength of the intermediate layer per thickness of 1 [mu]m is 10 MPa or more.
Patent TW-202215631-A (TW)
Title: 端子連接佈線
Inventor: PATIL ANIKET
IPC: H01L23/538
Filed: 2021-08-30
Abstract: 基板表面頂部上的端子連接佈線連接到去往和來自PMIC元件的元件端子，並提供了用於在SMT層（諸如，銅棒網）上連接表面安裝技術（SMT）被動元件端子的新結構（其使用元件附近可用的3D空間來降低電阻/降低感應路徑並提供較短路徑、減小的SIP形狀係數、增加的元件放置密度）、建立了附加PDN層以供連接性、並且在佈線被包封在模塑中的情況下保護連接中的金屬免受氧化。
Patent TW-202225406-A (TW)
Title: Method of calibration of mfish using slides
Inventor: KIM CHLOE
IPC: C12Q1/68
Filed: 2021-08-31
Abstract: A method of calibrating a fluorescence in-situ hybridization (FISH) system includes contacting a calibration slide with a plurality of probes, obtaining one or more images of the calibration slide; and calibrating the FISH system based on the one or more images. The calibration slide has a surface with a first plurality of beads. Each bead of the first plurality of beads has one or more binding domains. Each probe has a tag and a targeting domain, and the targeting domain binds a binding domain from the at least one binding domain.
Patent TW-202311995-A (TW)
Title: 進化可信根的方法與使用所述方法的電子裝置
Inventor: CHIEN LUNG-CHIH
IPC: G06F21/62
Filed: 2021-09-06
Abstract: 本發明實施例提供一種可以進化可信根的方法與使用所述方法的電子裝置，透過本發明，可信根可以進行數次的進化，以加強其安全啟動的安全性驗證能力。不同於傳統做法將可信根燒錄於唯獨記憶體中，本案透過區塊保護儲存設備將要增加於可信根的驗證韌體寫入於區塊保護儲存設備的未受保護的區塊，並於寫入結束後，使寫入驗證韌體的未受保護的區塊變成為受守護的區塊，以藉此讓進化的可信根為安全可信賴的，且又能達到進化可信根的目的。
Patent TW-202243676-A (TW)
Title: Topical pharmaceutical composition of hif prolyl hydroxylase inhibitors
Inventor: KANNAN M E
IPC: A61P17/06
Filed: 2021-09-22
Abstract: Present invention relates to topical pharmaceutical composition of suitable HIF prolyl hydroxylase inhibitors. Preferably, present invention is about the topical pharmaceutical composition of compound of formula (Ia). Disclosed topical pharmaceutical composition comprises compound of formula (Ia) or its pharmaceutically acceptable salts and suitable pharmaceutically acceptable excipients. Such composition is useful for treating skin disorders.