baber/WOPTO huggingface dataset:
Patent TW-I757881-B (TW)
Inventor: XU YONGAN
IPC: G02B27/01
Filed: 2020-09-22
Granted: 2022-03-11
Abstract: Embodiments of the present disclosure include a die system and a method of comparing alignment vectors. The die system includes a plurality of dies arranged in a desired pattern. An alignment vector, such as a die vector, can be determined from edge features of the die. The alignment vectors can be compared to other dies or die patterns in the same system. A method of comparing dies and die patterns includes comparing die vectors and/or pattern vectors. The comparison between alignment vectors allows for fixing the die patterns for the next round of processing. The methods provided allow accurate comparisons between as-deposited edge features, such that accurate stitching of dies can be achieved.
Patent TW-I748672-B (TW)
Inventor: Dong ming feng
IPC: G06F17/18
Filed: 2020-10-05
Granted: 2021-12-01
Abstract: The invention discloses automatic meter reading abnormality analysis system and method thereof. First, a meter reading module of a head-end management subsystem (HES) reads at least one electric meter, and a log server records meter reading logs when the meter reading module reads the meter. Thereafter, a meter abnormality analysis module retrieves characteristic values or abnormal characteristic values associated with the meter from the meter reading logs of the log server, and then analyzes reasons of abnormal meter reading according to statistical number or 
occurrence ratio of the characteristic values or abnormal characteristic values associated with the meter.
Patent TW-I736452-B (TW)
Title: Uses of bupropion and pharmaceutical composition for manufacture of medicament for treatment of cancer and method for inhibiting migration of tumor cells
Inventor: YANG JINN MOON
IPC: A61K31/137
Filed: 2018-08-09
Granted: 2021-08-11
Abstract: A use of bupropion for the manufacture of a medicament for the treatment of a cancer, wherein the tumor cells of the cancer overexpress neuronal 
acetylcholine receptor subunit α9 (CHRNA9). A use of a pharmaceutical composition for the manufacture of a medicament for the treatment of a cancer, wherein the pharmaceutical composition includes an effective amount of bupropion, and a pharmaceutically acceptable excipient; the tumor cells of the cancer overexpress CHRNA9. A method for inhibiting migration of tumor cells overexpressing CHRNA9, the method includes: administrating an effective dose of bupropion to the tumor cells.
Patent TW-I772944-B (TW)
Title: 聚酯複絲混纖紗、布帛、聚酯複絲混纖紗之製造方法及布帛之製造方法
Inventor: ICHIMURA AKITOSHI
IPC: D02G1/02
Filed: 2020-10-28
Granted: 2022-08-01
Abstract: 本發明提供一種可顯現出天然纖維般之膨脹感或柔軟性之聚酯複絲混纖紗、布帛、聚酯複絲混纖紗之製造方法及布帛之製造方法。
於熱收縮率不同之至少2種聚酯複絲紗交纏而成之聚酯複絲混纖紗1中，2種聚酯複絲紗為假撚加工紗10與部分延伸紗20，且兩種紗乾熱收縮。
因熱收縮，整體上大幅度收縮，但局部混合存在有收縮量不同之部位，並且兩種紗不均勻地露出於外部。藉由將因混纖紗之長邊方向上之收縮量差異所產生的染色程度之不均勻性與因兩種紗之配向度差異所產生的染色程度之不均勻性相結合，而於染色後之混纖紗之長邊方向形成不均勻之雜色感，從而使布帛顯現出天然纖維般之色調或質感。
Patent TW-I769637-B (TW)
Title: 感光性元件、積層體、永久抗蝕罩幕及其製造方法以及半導體封裝的製造方法
Inventor: NAGOSHI TOSHIMASA
IPC: G03F7/38
Filed: 2015-04-24
Granted: 2022-07-01
Abstract: 本發明的感光性元件具備：支撐膜、及設置於所述支撐膜上且由感光性樹脂組成物形成的感光層，且支撐膜與感光層接觸的面的表面粗糙度以Ra計為200 nm～4000 nm。
Patent TW-I768658-B (TW)
Title: Method of generating multicast group and base station using the same
Inventor: YEH CHE-WEI
IPC: H04W88/10
Filed: 2021-01-15
Granted: 2022-06-21
Abstract: A method of generating a multicast group and a base station using the same method are provided. The method includes: obtaining a plurality of packet sequence number (SN) and a plurality of buffer statuses corresponding to a plurality of user equipment (UE) respectively; setting a first packet SN as a first reference packet SN in response to the first packet SN being the largest of the plurality of packet SN; determining whether a first difference value between the first reference packet SN and a second packet SN is greater than a first remaining buffer space of a second UE according to a second buffer status; and assigning the second UE to a first multicast group corresponding to the first reference packet SN in response to the first difference value is lesser than or equal to the first remaining buffer space.
Patent TW-I770899-B (TW)
Title: Heat dissipation system of portable electronic device
Inventor: WANG YU AN
IPC: H01L23/467
Filed: 2021-03-25
Granted: 2022-07-11
Abstract: A heat dissipation system of portable electronic device including a first processing element, a second processing element, a heat dissipation module located between the first processing element and the second processing element, a first heat transferring member, and a second heat transferring member is provided. The first processing element has a first area and a second area. The first heat transferring member is thermal contacted with the first area, the second processing element, and the heat dissipation module. The second heat transferring member is thermal contacted with the second area and the heat dissipation module.
Patent TW-I754576-B (TW)
Inventor: CHOU PAOHUNG
IPC: H01L23/522
Filed: 2021-04-08
Granted: 2022-02-01
Abstract: 一種電感結構，其於絕緣體中埋設複數電感線路及至少一未電性連接該電感線路之遮蔽層，且該遮蔽層係包含複數不互相連接之線段，使該遮蔽層遮擋該電感線路，以提升電感值及品質因子。
Patent TW-I748910-B (TW)
Inventor: MAEKAWA Hidemitsu
IPC: A63B21/055
Filed: 2021-04-09
Granted: 2021-12-01
Abstract: The present invention provides a belt for training which allows utilization of conventional loop bands that are commonly sold, enables simple connection of multiple loop bands to any length with a simple structure, and can reduce cost and labor, and which is convenient to be carried. 
 
     The belt for training includes: a plurality of ring-shaped retractable belt members (12); an intermediate locking member (14) detachably connecting the plurality of the 
belt members (12); a first locking member (20) detachably connected to one end of the belt members (12) connected to the intermediate locking member (14); and a second locking member (38) detachably connected to the other end of the belt members (12) connected to the intermediate locking member (14); wherein the first locking member (20) and the second locking member (38) are locked to each other to form a ring shape.
Patent TW-I782496-B (TW)
Title: Smart word hedron
Inventor: HSU TSU-CHIA JULIA
IPC: G09B19/22
Filed: 2021-04-21
Granted: 2022-11-01
Abstract: The present invention provides a smart word hedron, comprising: at least a carrier with multidimensional setup and equipped with gravity-sensor unit, control unit and transmission unit in its interior. The gravity-sensor unit is used to sense the corresponding location of the dimensional rotation of the said carrier and generate a sensing message correspondingly; a communication device which connects the said transmission unit of the said carrier via signals, and stores play information corresponding to and depending on the said codes and the said sensing message. Therefore, with flipping the carrier by a user, the present invention can make the gravity-sensor unit correspondingly generate the sensing message to let the communication device correspondingly play the said play information via paly unit when the carrier is static. As a result, the carrier can be set with learning information on its dimensions. The learning information can be static or dynamic images, words, symbols, or the combination of images and words; whereas the play information is the corresponding sound or voice. According to the content about to instruct, the learning information and play information can correspondingly configure learning items of various categories or fields, such as flowers, plants, insects, letters, numbers or symbols from various countries. The voices of play information can also be set as Chinese, English, languages of Southeast Asia, Japanese, Korean, Russian, French or German according to the language need to be learned. By that, the purpose and effect of educational entertainment can be achieved from the result of the carrier’s rotation and the play information corresponding to it. Also, it can improve the language learning and cultural exchange.
Patent TW-I776493-B (TW)
Title: 跨坐型車輛
Inventor: SAITO YUSUKE
IPC: B62K25/28
Filed: 2021-05-05
Granted: 2022-09-01
Abstract: 本發明之跨坐型車輛1具備擺動單元21。擺動單元21包含至少一部分配置於後輪Rw之右方之支持臂25。支持臂25包含安裝有排氣系統32之上托架91u之上消音器安裝部92u、及不經由排氣系統32而安裝有後懸架26之懸架安裝部93。支持臂25之後端25r在側視時配置於後輪Rw之輪胎T之外周To之內側且較後輪Rw之旋轉中心C1更靠前方之位置。懸架安裝部93在側視時不與上消音器安裝部92u重疊。懸架安裝部93之至少一部分在俯視時配置於較上消音器安裝部92u之外端更靠內側。後懸架26之中心線Ls之延長線在側視時與座部之座面相交。
Patent TW-I776522-B (TW)
Title: Method for interacting with virtual environment, electronic device, and computer readable storage medium
Inventor: Yen Cheng-Ting
IPC: G06F3/0338
Filed: 2021-05-25
Granted: 2022-09-01
Abstract: The disclosure provides a method for interacting with a virtual environment, an electronic device, and a computer readable storage medium. The method includes: displaying a virtual environment, wherein the virtual environment includes a virtual object and a controller representative object having a first visual type; defining a detection space, wherein the virtual object locates in the detection space; in response to determining that the controller representative object locates in the detection space or a gaze direction of a user of the electronic device points to the detection space, transforming the controller representative object to a second visual type, wherein the controller representative object with the second visual type is used to interact with the virtual object; and adjusting the virtual environment in response to determining that the controller representative object with the second visual type reaches the virtual object.
Patent TW-I769008-B (TW)
Inventor: LIN TIEN-CHIEN
IPC: H04J14/02
Filed: 2021-07-08
Granted: 2022-06-21
Abstract: 一種智慧定義光隧道網路系統包含複數個群組。每一群組包含光塞取子系統。每一光塞取子系統包含第一傳輸模組以及第二傳輸模組。光塞取子系統中的第一傳輸模組相互連接以形成第一傳輸環。光塞取子系統中的第二傳輸模組相互連接以形成第二傳輸環。第一傳輸模組包含多工器以及第一光訊號放大器。多工器連接至置頂交換器。多工器用以透過輸入埠自置頂交換器接收上傳光訊號並整合上傳光訊號為合成光訊號。上傳光訊號具有各自的波長。第一光訊號放大器耦接至多工器，用以放大合成光訊號並輸出放大合成光訊號。
Patent TW-I763556-B (TW)
Title: Memory system and memory access interface device thereof
Inventor: TSAI FU-CHIN
IPC: G06F9/312
Filed: 2021-07-12
Granted: 2022-05-01
Abstract: A memory access interface device is provided. A clock generation circuit generates a reference clock signal. A fake data strobe signal generation circuit receives the reference clock signal and delays a read enable signal from a memory access controller to enable an output of the reference clock signal to generate a fake data strobe signal. A real data strobe signal generation circuit receives a data strobe signal from a memory device and delays the read enable signal to enable an output of the data strobe signal to generate a real data strobe signal. A data reading circuit samples a data signal from the memory device according to a sampling signal to generate a read data signal to the memory access controller. A selection circuit selects the fake and the real data strobe signals as the sampling signal respectively under a single and a double data rate modes.
Patent TW-I777676-B (TW)
Title: Data inspection system for inspecting operating situations of multiple iot devices in a plurality of target iot systems
Inventor: CHENG TZE YI
IPC: H04W24/02
Filed: 2021-07-19
Granted: 2022-09-11
Abstract: A data inspection system includes: a communication circuit arranged to operably communicate data with a plurality of attributes filtering devices to receive multiple activity records which are generated by the plurality of attributes filtering devices and corresponding to multiple IoT devices in a plurality of target IoT systems; a storage circuit arranged to operably store the multiple activity records received by the communication circuit; and a data classification circuit coupled with the storage circuit and arranged to operably classify each of the multiple activity records received by the communication circuit based on N attributes to form M data groups; wherein N is 2 or an integer greater than 2, while M is at least two times of N.
Patent TW-I792609-B (TW)
Inventor: KIM HANSEOK
IPC: H01L51/50
Filed: 2021-10-13
Granted: 2023-02-11
Abstract: A display device includes: a display panel; a cover shield on a rear surface of the display panel; a curvature control member disposed in an inner side of the cover shield; and rotation members connected to both ends of the curvature control member, respectively, and coupling the cover shield with the curvature control member. The curvature control member is configured to rotate with the rotation members. The cover shield is configured to switch between a first state and a second state as the curvature control member rotates, and the cover shield is flat in the first state and is curved in the second state. Therefore, a curvature of the display device is easily controlled by a simple structure and operation.
Patent TW-I786906-B (TW)
Inventor: JEN CHENG LUNG
IPC: G06T7/64
Filed: 2021-10-28
Granted: 2022-12-11
Abstract: 本發明提供幀處理設備，包括：運動估計電路，被配置為估計當前幀和先前幀之間的運動資料；變形電路，耦接至所述運動估計電路，被配置基於所述運動資料對所述先前幀進行變形，使得所述變形的所述先前幀與所述當前幀對齊，並確定所述當前幀與所述變形的先前幀是否一致；和臨時決定電路，與所述變形電路耦接，被配置為生成輸出幀，當所述當前幀和所述變形後的先前幀一致時，所述輸出幀包括所述當前幀和所述變形後的先前幀。
Patent TW-I816224-B (TW)
Inventor: XIU XIAOYU
IPC: H04N19/503
Filed: 2016-06-08
Granted: 2023-09-21
Abstract: 描述了用於以區塊內複製(IBC)模式對當前圖片的視訊區塊進行編碼的系統、方法和工具。加權預測可以針對IBC編碼的螢幕內容視訊區塊被禁用。分數區塊向量可以被用於IBC編碼的視訊區塊的色度分量。內插濾波器被用於生成針對該視訊區塊的色度預測採樣。當前參考圖片的解碼版本可被添加到與IBC編碼的視訊區塊相關聯的參考圖片清單L0和參考圖片清單L1兩者。當限制內預測被應用時，被用於預測內編碼視訊區塊的參考採樣被限制到在內編碼的相鄰區塊中的那些。IBC搜索的範圍可通過施加針對區塊向量的最大絕對值而被限制。
Patent TW-I807695-B (TW)
Inventor: Pan Kuan-Ting
IPC: H01L21/336
Filed: 2022-03-16
Granted: 2023-07-01
Abstract: 例示性裝置包含第一多閘極裝置，具有:第一通道層，設置於第一源極/汲極部件之間；及第一金屬閘極，圍繞第一通道層；第二多閘極裝置，具有:第二通道層，設置於第二源極/汲極部件之間；及第二金屬閘極，圍繞第二通道層。閘極隔離鰭，將第一金屬閘極和第二金屬閘極隔開，閘極隔離鰭包含介電部件，介電部件具有:第一介電層(例如低介電常數介電核心)，具有第一介電常數；及第二介電層(例如高介電常數介電殼)，圍繞第一介電層，第二介電層具有比第一介電常數更大的第二介電常數。
Patent TW-I814297-B (TW)
Inventor: WU SHAO YUNG
IPC: G06F1/20
Filed: 2022-03-23
Granted: 2023-09-01
Abstract: 本發明可將電源模組體積極小化之改良裝置，係包含有散熱器、外殼、絕緣片、電路板、電子元件以及散熱膠；散熱器內部貼有絕緣膠帶，其內部從下到上依序設有絕緣片、電路板、電子元件，再組裝時可運用散熱膠塗抹散熱器內部，使散熱器內部各構件相互接合連接散熱器進行散熱；外殼設於散熱器外部，可完全包覆住散熱器；其優點在於：將電子元件在同功效或者更好功效中將體積減少，從而讓電路板、絕緣片、散熱器以及外殼的尺寸同步縮小，即為本發明。
Patent TW-I798121-B (TW)
Inventor: LIN CHANG-YI
IPC: B25B11/00
Filed: 2022-06-29
Granted: 2023-04-01
Abstract: 本發明關於一種定位裝置，其包括：一基座，其包括複數穿孔及一滑槽；一夾持組件，其設於該滑槽中，包括一第一夾塊及一第二夾塊；一調整組件，其包括一第一驅動桿、一第二驅動桿及至少一轉動桿，該第一驅動桿包括一第一螺紋段及一第一傘形齒輪，該第二驅動桿包括一第二螺紋段及一第二傘形齒輪，該第一夾塊及該第二夾塊分別設於該第一螺紋段及該第二螺紋段，各該轉動桿包括一第三傘形齒輪，該第三傘形齒輪分別與該第一傘形齒輪及該第二傘形齒輪彼此相嚙合。
Patent TW-I805517-B (TW)
Title: Partition board with foamed aluminum core material, manufacturing method thereof and partition wall
Inventor: Wu chen yu
IPC: E04C2/34
Filed: 2022-10-28
Granted: 2023-06-11
Abstract: A partition board with a foamed aluminum core material, comprising: a first metal plate and a second metal plate; and a foamed aluminum core material disposed between the first metal plate and the second metal plate, wherein the hole diameters of the foamed aluminum core material are between 10 and 50 mm, and the porosity of the foamed aluminum core material is between 70 and 98%.
Patent TW-I813525-B (TW)
Inventor: YANG LAN-CHUN
IPC: H04Q1/06
Filed: 2023-01-09
Granted: 2023-08-21
Abstract: A communication apparatus is provided. The communication apparatus includes a communication device and a bracket structure. The communication device includes a device housing and a connection unit. The device housing includes a housing surface. The connection unit is disposed on the housing surface. The communication device is connected to the bracket structure. The bracket structure includes a first bracket and a second bracket. The first bracket is rotatably connected to the connection unit. The communication device is adapted to be rotated relative to the first bracket around a first axis. The first axis is perpendicular to the housing surface. The second bracket is rotatably connected to the first bracket. The first bracket is adapted to be rotated relative to the second bracket around a second axis. The second axis is perpendicular to the first axis.
Patent ZA-200110066-B (ZA)
Title: Measurement of magnetic fields using a string fixed at both ends.
Inventor: VERYASKIN ALEXEY VLADIMIROVICH
IPC: G01R33/022
Filed: 2001-12-06
Abstract: A method and apparatus for detecting magnetic fields in which a string ( 1 ) carries an alternating current. The displacement of the string from its unperturbated position due to a magnetic gradient across the string is detected by pick-up coils (L 1, L 2 ). The signals from the pick-up coils are demodulated using a signal derived from the alternating current to produce an output.
Patent ZA-200202413-B (ZA)
Title: Cell-specific and/or tumor-specific promoter retargeting of herpes gamma 34.5 gene expression.
Inventor: CHIOCCA E ANTONIO
IPC: C12N7/02
Filed: 2002-03-26
Abstract: The present invention relates to herpes viral mutants and methods of using these viral mutants for selectively targeting tumor cells or other populations of target cells. The viral mutants of the invention are capable of selective targeting due to the use of tumor-specific and/or cell-specific promoters to drive expression of the herpes  gamma 34.5 gene.
Patent ZA-200404211-B (ZA)
Title: Method for sterilising products
Inventor: BLAHA JIRKA
IPC: A23L/
Filed: 2004-05-28
Abstract: The invention relates to a method for sterilising products, especially found products and the raw materials, auxiliary products and semi-finished products thereof, in additions to raw materials, adjuvants and Intermediaries for the pharmaceutical and cosmetic industry. The products which are separated by sorting are placed, in product-dependent layer thicknesses. In a process container (3), after being possibly separated and/or sieved. The process container (3) guarantees identical treatment conditions for the entire product load, with the aim of achieving homogeneous product quality. The process container is introduced into a pressure chamber (7) in which the actual sterilisation process is controlled by a programme and runs homogeneously. The process container is removed from the pressure chamber (7), the product is then removed from the precess container, before or after being cooled to a pre-determined temperature, and is optionally brought back to its original form by means of a mechanical aftertreatment before being placed in the delivery container and/or being further processed. The invention thus enables the surface of products, especially natural dry products, to be sterilised and disinfected in an homogeneous and reproducible manner without causing any unwanted change in the sensory, physiological and chemical product properties.
Patent ZA-200502432-B (ZA)
Title: Water absorbing agent and method for the production thereof.
Inventor: DANIEL THOMAS
IPC: A61L15/24
Filed: 2005-03-24
Abstract: Water-absorbing product comprises water-absorbing polymer particles and a nitrogen-containing polymer containing 5-17 mole/kg of protonatable nitrogen atoms.  An Independent claim is also included for production of the water-absorbing product by applying the nitrogen-containing polymer or a solution thereof onto the water-absorbing polymer particles and optionally drying the product.
Patent ZA-200503458-B (ZA)
Title: Articulated rail connection for rail joints of profiled sliding rails
Inventor: NEUHAEUSER HELMUT
IPC: E01B25/24
Filed: 2005-04-29
Abstract: The invention relates to an articulated rail connection for rail joints (1a, 1b) of profiled sliding rails. An articulation (8) comprising at least one bearing flange (15) bridging the joint region is located at least in the upper joint region (S) of adjacent rail joints (1a, lb). According to the invention, the third bearing flanges or tongues (15) co-operating with second additional bearing flanges (14, 34) in an articulated manner are used to connect the same.
Patent ZA-200504650-B (ZA)
Title: Multifunctional cationic photoinitiators, their preparation and use
Inventor: HERILHY SHAUN L
IPC: C07D/
Filed: 2005-06-07
Abstract: Compounds of formula (I): wherein the substituents are as defined herein.
Patent ZA-200607622-B (ZA)
Title: Method for purifying plasmid DNA
Inventor: FRANCIS BLANCHE
IPC: C12N/
Filed: 2006-09-12
Abstract: This invention provides a process for the continuous alkaline lysis of a bacterial suspension in order to harvest pDNA. It further provides for optional additional purification steps, including lysate filtration, anion exchange chromatography, triplex affinity chromatogragphy, and hydrophobic interaction chromatography. These optional purification steps can be combined with the continuous lysis in order to produce a highly purified pDNA product substantially free of gDNA, RNA, protein, endotoxin, and other contaminants.
Patent ZA-200901054-B (ZA)
Title: Skin care compositions and related methods
Inventor: HASKEL ARIEL
IPC: A61Q/
Filed: 2009-02-13
Abstract: A skin care composition comprising an acrylate polymer; a yield value increaser, and a surfactant. The composition has a yield value of at least about 4. Also included within the scope of the invention are related methods, such as methods of depositing a hydrophobic material on an epidermal surface and methods of incorporating a hydrophobic material into a skin care composition.
Patent ZA-200901786-B (ZA)
Title: RFID Tag
Inventor: VAN EEDEN HENDRIK LODEWYK
IPC: G06K/
Filed: 2009-03-12
Abstract: An electronic tag is configured to be responsive to a TTO or TTF protocol energizing signal from a reader, but to suspend transmission when receiving an RTF protocol communication signal from a reader. The tag typically includes a protocol detector 120 which is operable to detect receipt of an RTF protocol communication signal and to suspend transmission when the electronic tag receives an RTF protocol communication signal from a reader.
Patent ZA-200905258-B (ZA)
Title: Methods for detecting inflammatory bowel disease
Inventor: DIEHL LAURI
IPC: C12Q/
Filed: 2009-07-28
Abstract: The present invention provides for a method of detecting the presence of inflammatory bowel disease in gastrointestinal tissues or cells of a mammal by detecting increased expression of LY6 genes in the tissues or cells of the mammal relative to a control.
Patent ZA-201200312-B (ZA)
Title: Capsule, system and method for preparing a predetermined quantity of beverage suitable for consumption
Inventor: KAMERBEEK RALF
IPC: A47J/
Filed: 2012-01-16
Abstract: A capsule for preparing a predetermined quantity of beverage suitable for consumption using an extractable product, by means of a beverage brewing device comprising a receptacle for receiving the capsule. The capsule comprises a cup comprising a circumferential wall, a bottom closing the circumferential wall at a first end, and a lid in use connected to the cup at a second end of the circumferential wall opposite the bottom. The wall, bottom and lid, in use, enclose an inner space comprising the extractable product. At least a portion of a surface of the capsule conceived to, in use, interact with the receptacle is provided with at least one projection for forming a sealing engagement with the receptacle.
Patent ZA-202201364-B (ZA)
Title: Deuterated compounds for use in the treatment of cancer
Inventor: BLENCOWE PETER
Filed: 2022-01-28
Abstract: The application relates to deuterated amide derivatives of formula (I) and their use in the treatment and prophylaxis of cancer, and to compositions containing said derivatives and processes for their preparation.
Patent ZA-202300318-B (ZA)
Title: System for polychaete production comprising a retrievable tray, and method for polychaete production
Inventor: FOSSHODE JOHN ARNOLD
Filed: 2023-01-06
Abstract: System for polychaete production comprising at least one cultivation unit (100), the cultivation unit (100) comprising at least one inlet (120) and an outlet (130) for supply and discharge of water and feed, and at least one retrievable tray (300) for cultivation of polychaete. A method for polychaete production in a cultivation unit (100) is also disclosed.