baber/WOPTO huggingface dataset:
Patent CN-201417293-Y (CN)
Inventor: YUBIN ZHANG
IPC: G01J5/00
Filed: 2009-07-02
Granted: 2010-03-03
Abstract: 一种在线温度连续监控系统，适用于自动监测电力设备温度。红外温度传感器装在高压设备的发热件附件，以测量发热器件发出电磁辐射，将温度信号转变为电信号，AD模数转换器分别与单片机、红外温度传感器连接，构成温度采集系统，单片机对信号进行数据采集、处理、发送，从而实现对高压设备的温度的实时监测。本实用新型可实时监控高压开关柜以及其他一些高压设备中铜排、互感器等发热器件的温度，实现在线温度连续监控，整个系统还具有测试精度高、智能化程度高等特点，能超前发现隐情，将电气故障扼杀在萌芽状态，做到防患于未然。
Patent CN-201354467-Y (CN)
Inventor: XIANFENG WEI
IPC: E03B11/10
Filed: 2009-02-02
Granted: 2009-12-02
Abstract: 本实用新型涉及管网叠压二次供水调蓄罐，可有效解决公共供水管网的压力不能合理利用，难以推广及运行可靠性差的问题，其解决的技术方案是，包括有调蓄罐体、进水管和出水管，调蓄罐体一端上部进水管上依次装有进水闸阀、过滤器、倒流防止器，调蓄罐体上部装有单向进气阀和与调蓄罐体内的水面相连的引出管，伸出调蓄罐体上面的引出管上并排装有自动排气阀和压力表，调蓄罐体内与水面间有空隙，出水管置于调蓄罐体一端下部，本实用新型结构简单，安装使用方便，效果好，可有效合理利用公共供水管网的压力，消除对公共供水管网正常供水中的不良影响，有效对蓄水量进行调节，运行可靠，易于推广应用，是自来水管网中供水设备上的创新，有良好的经济和社会效益。
Patent CN-201354306-Y (CN)
Inventor: MINCHUAN TAO
IPC: B66D1/30
Filed: 2009-02-25
Granted: 2009-12-02
Abstract: 本实用新型涉一种电动晾衣架的卷线轮，包括轮轴和圆柱体形的轮体，轮体圆柱表面上开设有螺旋形卷线槽，在卷线槽内，沿卷线轮轴线方向并列开设有两条与卷线槽走向一致的螺旋槽。该卷线轮能够使两根拉绳以并列的方式沿卷线槽整齐卷绕在卷线轮上，而不会产生缠绞干涉，从而不会增加卷线轮的长度和电动晾衣架控制装置的体积重量。
Patent CN-201355170-Y (CN)
Inventor: YIPING GAO
IPC: F25D23/02
Filed: 2009-01-09
Granted: 2009-12-02
Abstract: 本实用新型公开了一种冰箱门胆横向冲孔模，包括相互配合以固定冰箱门胆的上、下模板；上模板上安装有冲孔机构，该冲孔机构由一设于上模板上部的压板和连接该压板的若干冲孔单元所构成；每个冲孔单元均包括一固定在上模板底部的滑槽块、一滑设于滑槽块上并带有冲针的滑块和一连接滑块和压板，并可将压板的纵向运动传递为滑块横向运动的连杆。本实用新型由于采用滑块和连杆设计，整体结构简单，零部件少，制造和维护成本低；并且本实用新型在使用时的装配和操作都极为方便，能够减少工人的工作时间，减轻他们的工作量，并提高生产效率。
Patent GE-U20081448-Y (GE)
Title: Distiller
Inventor: BUTSKHRIKIDZE BOBIKO
IPC: B01D3/00
Filed: 2007-04-26
Abstract: A distiller contains a cylindrical boiler reactor having steam jacket 3 and 4, which has a throat 6 for an exit of distillate and a cover 5. The boiler reactor consists of a bottom 1 and the overhead 2 demountable parts. The throat for an exit of distillate is executed at a cover, which represents an inclined cone, which axis is inclined in opposite side to the throat for an exit of distillate. Above the cover the bath 7 with water is executed the bottom of which is said cover.
Patent PE-20140361-Z (PE)
Title: Sistema de automatizacion y control de celdas en prisiones y similares usos de seguridad
Inventor: VILLARAN ESCARDO JUAN RAFAEL
IPC: E05G5/00
Filed: 2012-12-19
Abstract: SE REFIERE A UN SISTEMA DE AUTOMATIZACION Y CONTROL DE APERTURA DE PUERTAS DE LAS CELDAS EN PRISIONES Y ESTABLECIMIENTOS CORRECCIONALES, CARCELES O EN DONDE SE REQUIERA SEGURIDAD Y CONTROL DE AMBIENTES TANTO EN FORMA INDIVIDUAL COMO PARA MULTIPLES PUERTAS DE CELDAS O AMBIENTES QUE CONFORMEN UN PABELLON O A LA VEZ MULTIPLES PUERTAS DE PABELLONES QUE CONSTITUYEN UN PENAL O SIMILAR. SISTEMA DE AUTOMATIZACION Y CONTROL DE APERTURA DE PUERTAS EN EL QUE SE PUEDE REGISTRAR, PROGRAMAR Y DETECTAR DIVERSOS EVENTOS TALES COMO APERTURAS, CIERRES, ALARMAS, DETECTAR INCENDIOS, MOVIMIENTOS NO AUTORIZADOS, CONTROLAR UN CIRCUITO CERRADO DE TV, SOPORTADO POR UN SISTEMA DE ENERGIA ININTERRUMPIDA UPS. APLICA EN EL CONTROL Y MONITOREO DE ESPACIOS ESPECIALMENTE EN PRISIONES O CORRECCIONALES
Patent PE-20200167-Z (PE)
Title: Nariz electronica con sensores recubiertos con zeolita y control de temperatura en lazo cerrado
Inventor: SUN KOU MARIA DEL ROSARIO
IPC: G01N33/48
Filed: 2019-10-30
Abstract: Nariz electronica con sensores recubiertos con zeolita y control de temperatura en lazo cerrado. Presenta sensores basados en oxido de estano, recubiertos con un tamiz molecular de zeolita, para mejorar la discriminacion de compuestos volatiles en la sustancia que se desea analizar. Incluye tambien un control de temperatura en lazo cerrado para mejorar la precision de la temperatura a la que se encuentran los sensores y una camara hermetica que consiste en un recipiente cilindrico de dos piezas que se unen mediante una rosca que, por su geometria, uniformiza la fuerza con la que se sella la camara.
Patent PE-20210516-Z (PE)
Title: Tapa inteligente autonoma para medicion de nivel y/o calidad de un liquido almacenado en un tanque contenedor
Inventor: MENDOZA CHAVEZ GILBERTO
IPC: G01F23/00
Filed: 2020-10-09
Abstract: Una tapa inteligente autonoma para tanques contenedores de liquido que posee la capacidad de monitorear en lapsos de tiempo prestablecidos las variables correspondientes al nivel y/o estado del liquido almacenado dentro del tanque contenedor, transmitiendo los datos correspondientes a un servidor remoto para que un usuario en conexion con dicho servidor y de manera remota tenga la capacidad de verificar dichas variables a partir de un dispositivo de comunicacion movil o fijo.
Patent PE-20221014-Z (PE)
Title: Sistema de desincrustracion de depositos minerales en tuberias de extraccion de petroleo (hidrocarburos), gas natural y otros fluidos
Inventor: PENA SINA RAFAEL ALEJANDRO
IPC: E21B47/01
Filed: 2021-04-30
Abstract: La presente invencion se refiere a un sistema de desincrustacion de depositos minerales en los sistemas de extraccion de petroleo (hidrocarburos), gas natural y otros fluidos que comprende un conjunto de dispositivos cargados ionicamente colocados estrategicamente alrededor y a lo largo de las tuberias de produccion y extraccion. Estos dispositivos constan de una carcasa que contiene un circuito electronico que conecta una celda solar, una bateria, un componente RC, un temporizador integrado que interactua con un componente de conmutacion, un diodo rectificador y un rele para alimentar a un embobinado, donde la disposicion de dichos dispositivos puede ser positiva frente a positiva; negativa frente a negativa, positiva y negativa frente a frente), segun se requiera. Los efectos beneficiosos de la invencion son que no interfiere con el flujo del fluido, evita que se vuelvan a formar los depositos minerales y evita paradas de produccion por el mantenimiento del dispositivo al tener una fuente de alimentacion independiente.
Patent ES-507342-A0 (ES)
IPC: B22D11/059
Filed: 1981-11-20
Abstract: In a casting mould and cooling unit for use in the continuous casting of molten metal, the layers of lubricious, non-wetting material such as graphite (12) bounding the solidification chamber (10) of the mould are secured to the copper cooling jacket walls (14) through the agency of interfitting ribs and grooves (18,20) and a layer (22) of bonding material so as to afford good thermal conduction between the layers (12) and walls (14) even if a gap develops at the interface. The interfitting ribs and grooves are so shaped that each wall (14) and the corresponding layer (12) can be assembled by bringing them together facewise on. At least some of the grooves (20) are of re-entrant form to provide a mechanical key so as to reduce the possibility of a gap developing at the interface.
Patent ES-517785-A0 (ES)
IPC: C23C2/06
Filed: 1982-11-29
Abstract: The material 3 to be coated with zinc is passed through a zinc melt bath 2 contained in a tub 1 and is kept immersed in said bath by a return guide member 5, at the downstream side of which the materials exits from the tub 1 in a substantially vertical direction. The return guide member 5 consists of a body of elongate shape extending transversely of the longitudinal direction of the tub 1. The return guide member 5 consists of a heat-resistant material which is resistant to temperatures of the order of at least 450 DEG  C. to 500 DEG  C., has zinc melt repellent properties and is corrosion-resistant under the attack of the zinc melt. It is of substantially pear-shaped cross-sectional configuration with its upper end formed so as to permit its being attached to a retainer clamp 8 in a dovetail connection. The clamp itself is adjustably connected to a transverse carrier structure mounted for pivotal movement about a horizontal axis 19. The lower portion of the return guide member 5 immersed in the bath 2 has a cross-sectional profile comprising a combination of concentrically arcuate guide surfaces 6 alternating with longitudinal grooves 7 extending over the full length of the return guide member 5.
Patent ES-545349-A0 (ES)
IPC: F04C2/107
Filed: 1985-07-18
Abstract: PCT No. PCT/SU85/00051 Sec. 371 Date Mar. 17, 1986 Sec. 102(e) Date Mar. 17, 1986 PCT Filed Jun. 27, 1985 PCT Pub. No. WO86/00954 PCT Pub. Date Feb. 13, 1986.A downhole motor includes a bearing unit connected to a moving section incorporating successively arranged working members-a stator and a rotor interacting with each other along profile surfaces. The like pairs of the adjacent working members are rigidly connected to each other by means of solid threaded bushings. A mounting fixture includes two mounting elements each made as two bushings interconnected by a coupling, the bushings having their profile surfaces located on the same longitudinal axis. One of the bushings is rigidly connected to the coupling, while the other bushing is mounted with the possibility of moving with respect to the longitudinal axis. A method of assembling the downhole motor is effected with the use of a pre-adjusted mounting fixture and resides in interconnecting the like working members by thread bushings ensuring the arrangement of the profile surfaces of the working members analogously to the profile surface of the single monolithic rotor and stator.
Patent ES-545888-A0 (ES)
IPC: C07H19/16
Filed: 1985-08-05
Abstract: A method that is direct and stereospecific is provided for the production of 2 min -deoxyadenosine derivatives and related analogs. The method comprises glycosylation of the sodium salt of 2,6-dichloropurine or 6-chloropurine and ammonolysis of the glycosylate to obtain the corresponding 2-chloro-2 min -deoxyadenosine or 2 min -deoxyadenosine.
Patent ES-553919-A0 (ES)
IPC: C08G18/77
Filed: 1986-04-11
Abstract: Carbodiimide group-containing isocyanate derivatives which contain from 2 to 30% by weight of carbodiimide groups (N=C=N) and, on statistical average, at least 0.8 carbodiimide groups per molecule and which also contain from 5 to 20 milliequivalents per 100 g of solids, of chemically incorporated sulphonate groups and, if desired, from 0 to 25% by weight, based on the solids, of chemically incorporated ethylene oxide units within polyether chains, are prepared by at least partial carbodiimidisation of the isocyanate groups of a) organic polyisocyanates or of mixtures of organic poly- and monoisocyanates and subsequent reaction of any free isocyanate groups still present using b) mono- and/or polyfunctional compounds containing groups which are reactive toward isocyanate groups, where components a) and/or b) are chemically incorporated sulphonate groups or compounds which contain groups which can be converted into sulphonate groups by a neutralisation reaction and at least some of which may be converted into sulphonate groups by neutralisation when the reaction is complete, and are used as additives for aqueous dispersions or solutions of plastics which contain carboxyl groups and/or groups which can be converted into carboxyl groups.
Patent FI-861855-A0 (FI)
Inventor: MAY BASIL JOHN
IPC: C09J7/38
Filed: 1986-05-02
Abstract: A preformed structure comprising a sheet-like substrate with a release coating on one side and a waterproofing pressure sensitive adhesive permanently attached to the other side.
Patent FI-862255-A0 (FI)
Inventor: DALKIAER PETER
IPC: D21B1/06
Filed: 1986-05-28
Abstract: A liquid absorbing pad, in particular for use in hygiene articles and sanitary products, such as diapers, bed pads, sanitary napkins, pads for incontinence, panty shields, nursing pads or the like, is produced in a dry and direct process on the basis of wet-strength and/or coated paper waste, especially originating from the production of food packages, milk carton packages, deep-freeze packages, disposable tableware and the like. The waste is cut and defibrated, and during the defibration or just before it a maximum of 25% by volume, based on the volume of the paper waste, of a mixture of water and a surfactant is added to reestablish the absorption capacity of the fibres. Starting materials otherwise difficult to process can thus be used in a dry and direct process.
Patent FI-873567-A0 (FI)
Inventor: GERSON IRA A
IPC: G10L15/20
Filed: 1987-08-18
Abstract: Method and arrangement for a speech recognition system using channel bank information to represent speech. The method considers background noise included with the speech. The method includes determining three energy levels for each channel, the first representative of background noise energy (20), the second representative of the input frame energy (16) and the third representative of the word template frame energy (18). Values representing energy level differentials are assigned at each channel. If the second energy level is less than the first energy level, then a predetermined constant value is assigned at that particular channel. These values are combined to generate a distance measure depicting the similarity between the two frames.
Patent FI-891040-A0 (FI)
Inventor: SAKAKI MAMORU
IPC: B41M5/52
Filed: 1989-03-03
Abstract: A recording medium comprises a surface layer composed mainly of aluminum oxide particles and a lower layer having ink absorptivity. A recording medium comprises a surface layer composed mainly of aluminum oxide particles and a lower layer having ink absorptivity, and having a Stöckigt sizing degree according to JIS-P-8122 of 0 to 15 sec. An ink jet recording method performs recording by imparting small droplets of an aqueous ink to a recording medium, wherein said aqueous ink contains an acidic dye and/or a direct dye, and said recording medium comprises a surface layer composed mainly of aluminum oxide particles and a lower layer having ink absorptivity. A recording medium comprising a surface layer composed mainly of aluminum oxide particles containing polyaluminum hydroxide and/or polyaluminum chloride and a lower layer having ink absorptivity. A recording medium comprises a surface layer composed mainly of aluminum oxide particles having particle sizes of 5  mu m or less provided on a liquid absorptive base paper.
Patent FI-894443-A0 (FI)
Inventor: BENGTSSON FRED
IPC: E06B9/62
Filed: 1989-09-20
Abstract: A moving door leaf (3), capable of being formed to adopt the desired path of the door, is so arranged as to be capable of being guided at its respective lateral edges (3A,3B) by means of guides. It is attached to a door cable running between the door leaf and a balance spring arrangement (21) for the door. The cable can be wound on a cable drum (24) provided with cable grooves. - Each guide extends in the form of a spiral along a common plane and is transformed from guide sections of straight form connected to one another via curves into a guide section of curved form. The cable drum exhibits a dia. which varies over the width of the cable drum.
Patent FI-920637-A0 (FI)
Inventor: EFFLAND RICHARD CHARLES
IPC: A61K31/4425
Filed: 1992-02-14
Abstract: There are described compounds of the formula   <IMAGE>   where n is 1,2 or 3; R1 is hydrogen, formyl, loweralkylcarbonyl, arylloweralkylcarbonyl, loweralkyl, arylloweralkyl,   <IMAGE>   R5 and R6 being independently loweralkyl or alternatively the group <IMAGE>   taken as a whole is   <IMAGE> +TR   <IMAGE>  R2 is hydrogen, loweralkyl, loweralkenyl, arylloweralkyl, -CH2C 3BOND CH, <IMAGE> +TR   <IMAGE>   R7 and R8 being independently loweralkyl or alternatively the group   <IMAGE>   taken as a whole is   <IMAGE>  R3 is hydrogen or loweralkyl; and R4 is hydrogen or loweralkyl; which compounds are useful as analgesic agents and also for treating various memory dysfunctions.
Patent FI-933601-A0 (FI)
Inventor: HUDSON ALICE P
IPC: C05G3/00
Filed: 1993-08-16
Abstract: Mixtures of hydrocarbon waxes and hydrocarbon soluble polymers which have oxygen containing polar groups provide an abrasion resistant sealant coating for sulfur coated urea.
Patent FI-933884-A0 (FI)
Inventor: MUNROE DAVID C
IPC: C01B17/66
Filed: 1993-09-06
Abstract: An improved high yield process and apparatus for producing sodium hydrosulfite by simultaneously contacting a first reaction mixture of sodium borohydride, sodium hydroxide, and water with a second reaction mixture of an acidic sulfur-containing compound or precursors thereof used in producing sodium hydrosulfite from sodium borohydride. <IMAGE>
Patent FI-942283-A0 (FI)
Inventor: MINIAC MICHEL DE
IPC: C12P7/06
Filed: 1994-05-17
Abstract: The use of any ionophoretic polyether antibiotic in industrial alcoholic fermentation media is described. 0.5-1.5 p.p.m. of such antibiotics prevent bacterial growth and enhance the productivity of alcoholic fermentation using yeast.
Patent FI-943750-A0 (FI)
Inventor: AGGARWAL BHARAT BHUSHAN
IPC: C07K14/525
Filed: 1994-08-15
Abstract: Methods and compositions are provided for the purification of a protein identified as tumor necrosis factor from nonrecombinant and recombinant sources, the preparation of nucleic acid encoding this tumor necrosis factor and for its expression in recombinant hosts. This tumor necrosis factor is used in the therapeutic treatment of malignant tumors, either alone or in synergistic combination with an interferon.
Patent FI-944627-A0 (FI)
Inventor: BJOERNDAHL PER SIXTEN
IPC: H04M3/48
Filed: 1994-10-04
Abstract: A method of effecting automatic callback in a mobile telecommunication system. A calling subscriber is permanently connected to a public switched telephone network and a called subscriber is a mobile unit which moves in the public land mobile network. A centrally located home location register keeps an account of where all mobiles registered in the mobile telecommunication network are located, with the aid of local databases, so-called visitor location registers. The called subscriber calls the called subscriber and finds that the subscriber is busy. The calling subscriber then dials a code, wherewith a reference is stored in a queue in the home location register, this queue relating to the called subscriber. When the called subscriber is free to receive a call, the calling subscriber is informed to this effect. The calling subscriber then lifts his telephone receiver and a connection is set-up between the two subscribers. When the called subscriber answers, the call is considered to have been connected. The home location register (HLR) then removes the reference from the queue.
Patent FI-945654-A0 (FI)
Inventor: LOWTHER NICHOLAS
IPC: A61P25/28
Filed: 1994-11-30
Abstract: PCT No. PCT/GB93/00940 Sec. 371 Date Nov. 30, 1994 Sec. 102(e) Date Nov. 30, 1994 PCT Filed May 6, 1993 PCT Pub. No. WO93/24451 PCT Pub. Date Dec. 9, 1993A salt of formula (I) where X denotes a group of formula (II), Y denotes a group of formula (III) and R denotes the residue of an aliphatic or cycloaliphatic sulphonic acid having at least 3 carbon atoms after removal of an -SO3H group therefrom.
Patent FI-952792-A0 (FI)
Inventor: LARSSON BO ERIK STEFAN
IPC: G06F17/30
Filed: 1995-06-07
Abstract: A system for recovery of relations in a data base in case of errors, comprises functionality executed by a computer and ensuring that data in the data base are structured as items of data in a number of recovery sub-systems, each item of data belonging to only one sub-system. If a sub-system contains one or more items of data that depend on one or more items of data in another sub-system, the first mentioned sub-system is marked as depending on the second mentioned sub-system. If a first sub-system is marked as depending on a second sub-system which is marked as depending on a third sub-system, the first sub-system is recursively marked as depending on the third sub-system. Furthermore no two sub-systems are marked as depending on each other. Integrity constraints between an item of data in one sub-system and an item of data in another sub-system are admitted provided that one of these sub-systems is marked as depending on the other one. Recovery actions are performed on a sub-system so as to only result in changing items of data of that sub-system and of sub-systems marked as depending on it.
Patent FI-952986-A0 (FI)
Inventor: RENAULD FRANCK ANDRE DANIEL
IPC: C08K5/5419
Filed: 1995-06-16
Abstract: A foam control agent comprising 100 parts by weight of (A) a water-insoluble organic liquid, (B) from 0.1 to 20 parts by weight of a first hydrophobic filler which is insoluble in the organic liquid (A) and (C) 0.1 to 20 parts by weight of a second hydrophobic filler which is at least partially soluble in organic liquid (A) and which is an organosilicon resin consisting mainly of units having the general formula R3SiO1/2 and units of the general formula SiO4/2, wherein R denotes a monovalent hydrocarbon group or a hydroxyl group, which is free from hydrocarbon amines, ammonia, disilazane or alkali (earth) metal hydroxides.
Patent FI-953667-A0 (FI)
Inventor: JONES LARREN F
IPC: E02F9/28
Filed: 1995-08-01
Abstract: An excavating tooth (10) for use on a wide variety of excavating equipment is comprised of a point (12), an adapter (14) and a sandwich lock pin (16). The pin includes a rigid casing (54) and a plurality of independently depressible protrusions (58, 59). One of the protrusions (58) resiliently engages a face (22) defined on the nose of the adapter to tighten the connection of the point on the nose. One other of the protrusions (59) extends into an opening (50) defined by the point to secure the lock pin to the point. With respect to an external locking tooth, the opening (50) defined in the point includes a pair of bosses (155a, 155b) which define a reduced portion of the opening. The reduced portion matingly receives and holds the ends of the rigid casing of the pin. The independent locking of the pin and the mating receipt of the casing in the point opening reduces the likelihood of pin loss due to overloading of the elastomeric material, wearing of the components or jacking forces.
Patent FI-954720-A0 (FI)
Inventor: PINAULT FRANCIS
IPC: H04B7/26
Filed: 1995-10-04
Abstract: PCT No. PCT/FR94/00389 Sec. 371 Date Oct. 6, 1995 Sec. 102(e) Date Oct. 6, 1995 PCT Filed Apr. 7, 1994 PCT Pub. No. WO94/24833 PCT Pub. Date Oct. 27, 1994A synchronization device for a terminal of a radio communication system, adapted to identify a control channel constituting one of a plurality of receive channels by means of a receiver (2) comprises means (3) to measure the power of the receive channels and means (4) for attempting synchronization to at least some of said channels identified in a list (5), and is characterized in that, the system being such that a reference channel (Cr) of nominal power (Pr), its ith predecessor (Cr-1) and its ith successor (Cr+1) have an ith attenuation (Ai) when the receiver (2) is tuned to the reference channel (Cr), it comprises selection means whereby the ith predecessor (Cr-i) or the ith successor (Cr+1) do not appear in the list if its power is less than the nominal power (Pr) of the reference channel (Cr) reduced by the ith attenuation (Ai).
Patent FI-954993-A0 (FI)
Inventor: BAUMANN ERNST
IPC: C07C69/22
Filed: 1995-10-19
Abstract: PCT No. PCT/EP94/01156 Sec. 371 Date Oct. 19, 1995 Sec. 102(e) Date Oct. 19, 1995 PCT Filed Apr. 14, 1994 PCT Pub. No. WO94/25443 PCT Pub. Date Nov. 10, 19943-(Het)aryloxy(thio)carboxylic acid derivatives of the formula I    <IMAGE>  I  where R1 is hydrogen, COOH or a radical which can be hydrolyzed to give COOH; R2 and R3 are each halogen, alkyl, haloalkyl, alkoxy, haloalkoxy or alkylthio; X is nitrogen or CR14, where R14 is hydrogen or, together with R3, forms a 3-membered or 4-membered alkylene or alkenylene chain, in each of which a methylene group is replaced by oxygen; R4 is alkyl, cycloalkyl, cycloalkenyl, alkenyl or alkynyl, each of which is unsubstituted or substituted; an unsubstituted or substituted five-membered or six-membered heteroaromatic structure containing one to three nitrogen atoms or one sulfur or oxygen atom; unsubstituted or substituted phenyl or naphthyl; R4 and R5, together with the neighboring carbon atom, form a 3-membered to 8-membered ring which may contain an oxygen or sulfur atom and which is unsubstituted or substituted; R5 is hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, haloalkyl, alkoxyalkyl, alkylthioalkyl or phenyl, each of which is unsubstituted or substituted; R6 is unsubstituted or substituted phenyl or naphthyl or an unsubstituted or substituted five-membered or six-membered heteroaromatic structure containing one to three nitrogen atoms or one sulfur or oxygen atom; Y is sulfur or oxygen or a single bond; and Z is sulfur or oxygen.