baber/WOPTO huggingface dataset:
Patent JP-2023538051-A (JP)
Title: ２モードロッカークラッチ
IPC: F16D41/12
Filed: 2021-10-11
Abstract: ２モードロッカークラッチであって、クラッチギアと、ハウジングと、端部及びハウジング内に配設された部分を含む第１の爪部と、作動アセンブリと、ハウジング内に配設された部分を含む第２の爪部と、第２の爪部を、クラッチギアと接触するように付勢する弾性要素と、を含む、２モードロッカークラッチ。一方向モードでは、クラッチギアは、ハウジングに対して、第１の周方向にのみ回転可能である。一方向モードからロックモードに移行するために、第２の爪部は、ハウジングに対して、第１の周方向とは反対の第２の周方向への、クラッチギアの回転を阻止し、作動アセンブリは、第１の爪部を、クラッチギアと接触するように枢動させるように配置されており、第１の爪部の端部は、ハウジングに対して、第１の周方向への、クラッチギアの回転を阻止するように配置される。
Patent JP-2023539208-A (JP)
Title: ネットワークコーディングベースのセキュア通信
IPC: G09C1/00
Filed: 2021-08-30
Abstract: システムおよび方法は、ポスト量子の計算量的セキュリティ保証を用いて高い通信レートを実現するハイブリッド通信スキームを提供する。セキュアに通信されるメッセージは、最初に、線形ネットワーク符号などの個別にセキュアなエンコーディングを使用してミックスされ、エンコードされたメッセージの一部はさらに暗号化される。暗号化メッセージと、暗号化されていないメッセージとは、異なる通信チャネルを介して送信される。メッセージのいずれかをデコードするには、暗号化メッセージを含むすべてのメッセージが必要になるため、暗号化されていない各メッセージは、事前のミキシングにより、暗号化メッセージとほぼ同じくらいセキュアになる。したがって、暗号化メッセージは、非常に少数しか使用されなくなり、チャネルの数が増加するにつれて、通信のレートが１に近づく。これは、古典的な公開鍵暗号システムが、送信または格納されたデータの一部でしか使用できない場合、ノイズの多いチャネルの存在下において、分散データストレージおよび他のアプリケーションにおいて、特に有益である。
Patent JP-2023548738-A (JP)
Title: 比濁測定装置
IPC: G01N21/49
Filed: 2020-11-02
Abstract: 以下のように構成される比濁測定装置が開示される。懸濁液を通って伝搬するビームから１つまたは複数の散乱光検出器に衝突し、異なる経路長を有する散乱光の量により、散乱光検出器の応答と懸濁液の濁度値との実質的に同等の感度と相関関係とがもたらされる。懸濁液を通って伝搬する光ビームから８５～１１０度の比濁角度で散乱光を受け取る散乱光検出器の応答は、一群の非線形方程式から選択される方程式（下記の「式１」）に従い得る。式１において、「ｎ」は０よりも大きい整数であり、「ｘ」は懸濁液の濁度値に相当し、「ｙ」は散乱光検出器の応答に相当し、「ａｎ」は較正係数である。散乱光検出器の最大応答は、実効散乱光路長に依存する濁度値で発生する。【数１】TIFF2023548738000013.tif16170【選択図】図２C
Patent JP-2023546686-A (JP)
Title: 磁性素子及びこれを含む映像出力装置
IPC: H01F27/00
Filed: 2021-10-21
Abstract: 本発明の一実施例によるトランスフォーマーは、コア部と、前記コア部内に少なくとも一部が収容される第１コイル部及び第２コイル部とを含み、前記第１コイル部及び前記第２コイル部のうちの少なくとも一つは、複数の導電線が特定の領域で互いに交差することで、導電線間のインダクタンス偏差を減少させることができる。【選択図】図３
Patent JP-2023547158-A (JP)
Title: 特定の液体電解質を有する電気化学セル
IPC: H01M10/0568
Filed: 2021-10-22
Abstract: 本発明は、電気化学セルであって、正極と、負極と、液体電解質であって、特定のリチウム塩、好ましくはリチウムビス（トリフルオロメタンスルホニル）イミド（ＬｉＴＦＳＩ）、フッ素化エーテル、好ましくは１，１，２，２－テトラフルオロエチル－２，２，３，３－テトラフルオロプロピルエーテル（ＴＴＥ）、環式スルホン、好ましくはスルホラン（ＳＬ）、及び０＜ｘ≦１５体積％の量（ｘ）のフッ素化カーボネート、好ましくはフルオロエチレンカーボネート（ＦＥＣ）を含む液体電解質とを含み、電気化学セルが少なくとも９３％のクーロン効率を有する、電気化学セルに関する。本発明で使用する電解質によって電気化学的特性が改善される。
Patent JP-2023548238-A (JP)
Title: ポリオレフィン微多孔質フィルム及びその生産システム、電池セパレータ、電気化学装置
IPC: H01M50/417
Filed: 2021-09-14
Abstract: 【課題】超薄型、高強度の要求を満たす電池セパレータを提供する。【解決手段】本発明の電池セパレータは、フィルムの厚さが２～３０μｍであり、穿刺強度が１０００～２０００ｇｆであり、ＭＤ方向においての引張強度が３２００～５０００ｋｇｆ／ｃｍ２であり、ＴＤ方向においての引張強度が２８００～４８００ｋｇｆ／ｃｍ２であり、空隙率が４０％～５７％であり、最大孔径が３３～４８ｎｍであり、ガス透過速度が１０～４００秒／１００ｍｌであり、インピーダンスが０．３～０．９Ω／ｃｍ２であるポリオレフィン微多孔質フィルム及びその生産システム、該ベースフィルムが用いられる塗装セパレータ及び電気化学装置を開示している。本発明に係るポリオレフィン微多孔質フィルムは、いずれも優れた性能を有し、それらの厚さ、引張強度、穿刺強度、通気性、空隙率及び熱収縮率が、いずれも微多孔質フィルムの厚さ及び機械的強度に対して高く要求される応用を満たせ、動力リチウムイオン電池のセパレータ分野に非常に適される。【選択図】 図１
Patent JP-2023549801-A (JP)
Title: ディスプレイフロントパネルデバイス
IPC: G09F9/30
Filed: 2021-11-04
Abstract: 例示的なピクセル構造体は、ディスプレイデバイスパネルスタックのピクセル構造体を含み得る。構造体は、第１のパネルを含み得る。第１のパネルは、バックプレーン上に配置された複数の紫外光源を含み得る。構造体は、第２のパネルをさらに含み得る。第２のパネルは、第１のパネルに連結され得る。第２のパネルは、紫外光源に面する内表面を有し得る。第２のパネルは、透明な基板及びダウンコンバージョン層を含み得る。ダウンコンバージョン層は、透明な基板を覆うように配置され得る。ダウンコンバージョン層は、紫外光を可視光へダウンコンバートするように構成され得る。複数の紫外光源と第２のパネルの内表面とは、少なくとも２μｍの距離だけ分離され得る。【選択図】図２
Patent JP-2024502344-A (JP)
Title: 省電力処理方法、及び省電力処理装置
IPC: H04W52/02
Filed: 2022-01-10
Abstract: 本出願は、通信の技術分野に関する、省電力処理方法、装置及び機器を開示する。当該方法は、第１目標ユーザ機器のアクティブ化又はウェイクアップ又は非アクティブ化又はスリープを指示するための省電力情報を送信するステップを含み、前記省電力情報は、フットプリント情報、省電力指示命令の少なくとも一項を含む。
Patent JP-2024503035-A (JP)
Title: 軽量拡張
IPC: G06F16/28
Filed: 2022-01-10
Abstract: データモデル（１１０）の軽量拡張のための方法（３０２）は、データ分析システム（２００）におけるモデルドキュメント（１２０）を参照する拡張ドキュメント（１６０）をメモリ（２１２）に最初にロードすることを含む。モデルドキュメントはデータモデルを定義し、拡張ドキュメントはデータモデルに対しての少なくとも１つの修正（１８０）を用いてデータモデルを拡張する。次いで、本方法は、拡張ドキュメントから、データモデルに対しての修正を抽出することを含む。最後に、本方法は、拡張ドキュメントでのデータモデルのビューの再構成を処理することなくデータモデルに対しての拡張（１９０）を生み出すために、修正に組み合わされるモデルドキュメントからのデータモデルをメモリ内に作り出すことを含む。
Patent MX-2007001933-A (MX)
Title: A support for supporting a structure on a surface.
Inventor: PIKE ANTONY
IPC: A47B9/10
Filed: 2005-08-16
Abstract: A support for supporting a structure on a surface, comprising at least one supportelement, the or each support element comprising a piston, a cylinder in whichthe piston is moveable, and a braking means for maintaining the piston in a positionthat is stable relative to the cylinder, wherein the piston and the cylinder arearranged so that a loading associated with the structure effects an adjustmentof the support element, and wherein an increase in hydraulic pressure withinthe cylinder, effected by the loading associated with the structure, activatesthe braking means.
Patent MX-2007002458-A (MX)
Title: Flow limiter for pressure irrigation networks.
Inventor: AUSTRIA POLIOPTRO FORTUNATO MARTINEZ
IPC: G05D7/00
Filed: 2007-02-28
Abstract: The present invention refers to a flow limiter, which dissipates the exceeding energy in a water supplying system, thereby providing a flow adjustable to a range desired by a user. The purpose of the present invention is to provide a flow limiter which results accessible to users due to the reduced manufacturing cost thereof regarding products currently available on the market for regulating the water flow, and which solves the need of having a flow that ensure the uniformity of the water supplying system regardless of the pressure variations which would otherwise exist between the different service nodes of said system.
Patent MX-2007004096-A (MX)
Title: Modular pressure control and drilling waste management apparatus for subterranean borehole operations.
Inventor: DUHE JASON
IPC: E21B21/06
Filed: 2005-10-04
Abstract: A modularly segmented apparatus for precise borehole pressure control, removing waste from borehole fluid, and recirculating the cleaned borehole fluid includes a pressure control section, a gas separator section, and a waste management section. In the pressure control section, a pressure manifold interconnects a plurality of chokes. A plurality of valves are used to direct the contaminated fluid through one of the chokes, which maintains a precise and predetermined pressure in the system. The manifold, chokes, and valves are mounted on a skid for easy transport. In the gas separator section, a gas separator is used to remove a majority of the gases present in the contaminated borehole fluid. In the waste management section, a vibratory separator removes large solid contaminants from the degassed fluid. The solids are directed to a solids collection container for further treatment or disposal. The fluid is directed to a first pit, which may be one partitioned are of a larger collectio n tank. Fluid from the first pit is directed to a degasser which removes additional gases in the fluid and directs the fluid to a second pit. Fluid from the second pit is directed to a desilt ??r, which removes additional solids and directs the fluid to a third pit. The solids from the desilter are directed to the solids collection container. Fluid from the third pit is directed to active rig pumps for recirculation into the borehole.
Patent MX-2007004988-A (MX)
Title: Virtual programming of formed component trajectories.
Inventor: BERGSTROM DANIEL B
IPC: G06F19/00
Filed: 2005-10-25
Abstract: This invention discloses a method for calculating gripper (4) trajectories in forming equipment. The method utilizes a computer aided design (CAD) or a computer aided engineering (CAE) computer program to calculate the appropriate location, speed, controller commands, and trajectory for each gripper (4) used during a forming process.
Patent MX-2007008677-A (MX)
Title: Coextrudible resin and dye compounds for containers of refrigeration-free and high decomposition resistance liquid food.
Inventor: VEGA JUAN CARLOS FIGUEROA DE LA
IPC: B65D85/80
Filed: 2007-07-17
Abstract: The present invention is related to the industry of plastic compounds for packages containing liquid food, beverages, dairy products, milk and derivatives thereof having organoleptic characteristics and a refrigeration-free long useful life. Chemtex Industry is intended to promote the preservation of food in order to avoid food wastes, thereby maintaining it fresh and preserving the nutritional properties thereof, also turning food into an accessible product in areas of difficult access and where no refrigeration distribution chain is available. The present invention is related to the industry of plastic compounds for packaging liquid food, beverages, dairy products, milk and derivatives thereof having organoleptic characteristics and a refrigeration-free long useful life, and more particularly to the liquid food industry. The advantage of the containers of the present invention is that they may be filled up in pollution- and bacteria-free environments and under controlled processes s aid condition may be guaranteed for long periods of time without applying refrigeration processes thereto, thereby obtaining substantial savings in electric power as well as in the characteristics of the projects regarding storing designs and handling thereof. The containers manufactured with the present compounds are effectively recycled. When the containers made of the present compounds are recycled, the raw material thereof being recovered and reused. The polyethylene particles used in the present compound may be indefinitely reused and turned into different plastic products utilised in any industry including the food industry. The inventive compound is based on petrochemical compounds, including the mixture of different resins resulting from ethylene (polyethylene) in a density ratio of from about 0.960 gms/cm3 to about 965 gms/cm and a flow rate of from about 1.5 g/10 min to about 2.5 g/10 min according to the test based on ASTM D1238 in white colour based on titanium dioxide, di spersants, additives and black colour based on carbon black, dispersants and additives. The characteristics of the compound are such that allow the same to be processed in a consistent manner, maintaining the resistance, rigidity and low weight characteristics thereof, also allowing the same to be adhered to further layers of a compound having the same resin base, under certain parameters of temperature. The compound is generally manufactured out according to the products containing the same, said products being easily decomposed in case of not being stored within materials that protect the same against the quick penetration of oxygen and UV beams, or materials that do not maintain a suitable asepsis for eliminating bacteria generation, the aforementioned problem being the main element causing food decomposition. The main advantage of the inventive compound is the maximum elimination of odours which may affect the product to be packed.
Patent MX-2007013044-A (MX)
Title: Liquid detergent composition.
Inventor: FLECKENSTEIN MELISSA
IPC: C11D1/83
Filed: 2006-04-21
Abstract: A liquid detergent composition comprising surfactants, at least one suspending agent, beads, and water.
Patent MX-2007016579-A (MX)
Title: Dental instruments made from super-elastic alloys.
Inventor: FISCHER DAN E
IPC: A61C3/02
Filed: 2005-10-26
Abstract: Dental instruments (210) made from a super-flexible alloy, which includes atoms from the group IVB and group VB transition metals and oxygen have superior strength and flexibility. The metal alloys are cold worked to increase the tensile strength of the dental instruments (210). Cold working the metal also increases the flexibility of the dental instruments (210). In one particular example a super-elastic endodontic file (210) is described.
Patent MX-2008000173-A (MX)
Title: Layered film compositions, packages prepared therefrom, and methods of use.
Inventor: BONGARTZ HERBERT
IPC: B32B7/027
Filed: 2006-07-07
Abstract: The invention relates to a perforated film composition, comprising at least three layers, and wherein at least one layer is a inner layer with a softening and/or melting temperature, lower than the respective softening and/or melting temperatures of at least two outer layers, located at opposite surfaces of the inner layer, and where upon exposure to elevated temperature, the inner layer softens or melts to such an extent, that upon exposure to a compression force, a sufficient number of perforations seal in the inner layer, to impart an increased moisture barrier to the overall film composition. The invention also relates to a method of forming such a perforated film composition, packages prepared from the same, and a method of filling packages prepared from the perforated film composition.
Patent MX-2008000545-A (MX)
Title: Pipe-bending machine mandrel.
Inventor: CAPORUSSO ALESSANDRO
IPC: B21D9/03
Filed: 2008-01-11
Abstract: A pipe-bending machine mandrel comprises a rigid member (5), which can be inserted inside a pipe (T) to be bent which has an internal dimension Di and can tilt herewith in a bending operation with a prefixed mean radius Rm as measured between the rotation centre (O) of a bending die and the longitudinal axis ( l ) of the pipe (T) to be bent.; The rigid member (5) has a proximal side profile with respect to the rotation centre (O) comprising at least a concave intermediate portion as generated by a radius Rci section of circumference (50), and a distal side profile with respect to the same rotation centre (O) comprising two convex, divided, end portions as generated by respective radius Rce sections of circumference (51, 52), where Rci = Rm - (Di/2) + t , and Rce = Rm + (Di/2) - t , t being a term varying according to the accuracy of the dimensional characteristics of the pipe to be bent and of the curve to be obtained.
Patent MX-2008002277-A (MX)
Title: Method of making rfid devices.
Inventor: HAMILTON KEVIN S
IPC: G06K19/077
Filed: 2006-08-21
Abstract: A method of making RFID tags includes printing individualized information to a printable facestock on which an RFID device is attached. Generic information may be preprinted on the facestock before the RFID device is attached. The facestock may be folded over, putting the generic information and individualized information on different sides of the tag. The individualized information may be a function of information obtained by reading or interrogating the RFID device.
Patent MX-2008002461-A (MX)
Title: Mobile wireless communication terminals, systems and methods for providing a slideshow.
Inventor: WASSINGBO TOMAS
IPC: H04W4/12
Filed: 2006-08-22
Abstract: A mobile wireless communication terminal includes a wireless communication module and a controller. The wireless communication module is configured to communicate with other communication terminals over at least one direct point-to-point wireless interface. The controller is configured to establish a connection with each of a plurality of participant wireless communication terminals via the wireless communication module, to receive an image send command from a user, and to send a digital image file over the at least one direct point-to-point wireless interface to each of the plurality of participant wireless communication terminals as a group responsive to the image send command.
Patent MX-2008003232-A (MX)
Title: Lens delivery system cartridge.
Inventor: DOWNER DAVID ANTHONY
IPC: A61F2/00
Filed: 2008-03-07
Abstract: A cartridge for an IOL delivery system that folds open along its longitudinal axis on two pairs of hinges. The interior of the cartridge is hollow and contains a folding chamber connected to a nozzle. The folding chamber has a pair of rails that help to assist in providing an initial fold of the IOL and help prevent rotation of the IOL during injection.
Patent MX-2008009629-A (MX)
Title: Self-contained electromagnetic cerebrofacial area treatment apparatus and method for using same.
Inventor: PILLA ARTHUR A
IPC: A61N1/00
Filed: 2007-01-24
Abstract: An apparatus and method for electromagnetic treatment for hair restoration and treatment of cerebrofacial molecules, cells, tissues, and organs comprising configuring at least one waveform having at least one waveform parameter (STEP 101) , selecting a value of the at least one waveform parameter of the at least one waveform to maximize at least one of a signal to noise ratio and a Power signal to noise ratio in a target pathway structure (STEP 102), using the at least one waveform that maximizes the at least one of a signal to noise ratio and a Power signal to noise ratio in a target pathway structure to generate an electromagnetic signal (STEP 103) , and coupling the electromagnetic signal to the hair and cerebrofacial target pathway structure to modulate the hair and cerebrofacial target pathway structure (STEP 104) .
Patent MX-2008011137-A (MX)
Title: Fuel processor apparatus and method for a diesel engine.
Inventor: ROCK KELLY P
IPC: F02D19/10
Filed: 2007-03-01
Abstract: The present invention provides a diesel engine and methods and apparatus for premixing diesel fuel and oxidant for combustion. The methods and apparatus may include a two stage vortex, each stage accommodating different flow rate ranges. The vortex pulverizes diesel fuel and optimally mixes the diesel fuel with an oxidant prior to introduction into a combustion chamber. The premixing results in more complete combustion and, consequently, fuel efficiency is increased and pollution is decreased.
Patent MX-2008012837-A (MX)
Title: Bifunctionalized polysaccharides.
Inventor: SOULA REMI
IPC: C08B37/02
Filed: 2007-04-06
Abstract: The invention concerns a dextran and/or dextran derivative bifunctionalized by at least one imidazolyl radical (Im) and at least one hydrophobic group (Hy), said radical and group being each, identical and/or different, and, grafted or bound to the dextran and/or dextran derivative by one or more linker arms R, Ri or Rh and functions F, Fi or Fh as well as pharmaceutical compositions comprising one of said dextrans and at least one active principle.
Patent MX-2008012892-A (MX)
Title: Feminine hygiene article with wavy patterns.
Inventor: GAGLIARDI IVANO
IPC: A61F13/15
Filed: 2007-04-04
Abstract: Feminine hygiene article (10) for external use having on their body-facing surface at least one embossed wavy pattern (260, 261, 262, 263) and at least one non- embossed, preferably coloured, wavy pattern (280, 281 ). The embossed and non- embossed wavy patterns are chosen with specific geometric parameters so that a slight lateral or longitudinal shift does not affect the overall appearance of the body-facing surface. Preferably, the article comprises lateral topsheet stripes (18). The lateral topsheet stripes may be coloured and have an inwardly facing edge with a wavy cut.
Patent MX-2008013136-A (MX)
Title: Organic compounds and their uses.
Inventor: EHRHARDT CLAUS
IPC: A61P31/14
Filed: 2007-04-09
Abstract: The present application describes organic compounds that are useful for the treatment, prevention and/or amelioration of human diseases.
Patent MX-2008013271-A (MX)
Title: Method of replacing a tire system on a compact tractor.
Inventor: ALLEN KENNETH
IPC: B62D49/06
Filed: 2007-03-30
Abstract: A method is provided for refitting a tire system on a compact tractor (10) which typically comes equipped with a set of industrial tires mounted on standard industrial size wheels. A set of replacement agricultural tires or turf tires is provided. The replacement tires are sized to fit on the standard industrial size wheels while having rolling circumferences substantially equal to rolling circumferences of standard agricultural tires or turf tires, respectively, for the compact tractor in question. The industrial tires are replaced with the replacement agricultural tires or turf tires without changing at least the front wheels (18) on the compact tractor (10).
Patent MX-2008014560-A (MX)
Title: Compounds for the treatment of metabolic disorders.
Inventor: SHARMA SHALINI
IPC: A61K31/195
Filed: 2007-05-11
Abstract: Agents useful for the treatment of various metabolic disorders, such as insulin resistance syndrome, diabetes, polycystic ovary syndrome, hyperlipidemia, fatty liver disease, cachexia, obesity, atherosclerosis and arteriosclerosis are disclosed, compound of the formula (I): wherein n is 1 or 2; m is 0, 1, 2, 3, 4, 5, 6, 7 or 8; q is 0 or 1; t is 0 or 1; R1 is alkyl having from 1 to 3 carbon atoms; R2 is hydrogen, halo, alkyl having from 1 to 3 carbon atoms, or alkoxy having from 1 to 3 carbon atoms; R3 and R4 together are alkyl having two or three carbon atoms; or R3 and R4 are the same as each other and each is methyl or ethyl; R 5 is hydrogen or alkyl having from one to six carbon atoms. A is phenyl, unsubstituted or substituted by 1 or 2 groups selected from: halo, hydroxy, alkyl having 1 or 2 carbon atoms, perfluoromethyl, alkoxy having 1 or 2 carbon atoms, and perfluoromethoxy; or A is cycloalkyl having from 3 to 6 ring carbon atoms wherein the cycloalkyl is unsubstituted or one or two ring carbons are independently mono-substituted by methyl or ethyl; or A is a 5 or 6 membered heteroaromatic ring having 1 or 2 ring heteroatoms selected from N, S and O and the heteroaromatic ring is covalently bound to the remainder of the compound of formula (I) by a ring carbon. Alternatively, the agent can be a pharmaceutically acceptable salt of the compound of Formula (I).
Patent MX-2009000519-A (MX)
Title: Method and apparatus for frequency selective and frequency diversity transmissions in a wireless communication system.
Inventor: MALLADI DURGA PRASAD
IPC: H04W72/12
Filed: 2007-07-16
Abstract: Techniques for efficiently supporting frequency selective scheduling (FSS)and frequency diversity scheduling (FDS) are described. In one design, a firsttransmission for an FSS user may be mapped to a subband selected for this user fromamong at least one subband in a first frequency region of the system bandwidth.The first transmission may be mapped to a fixed portion or different portionsof the selected subband in different time intervals. A second transmission foran FDS user may be mapped across multiple subbands in a second frequency regionof the system bandwidth. The second transmission may be mapped to different subbandsor different resource blocks in the second frequency region in different timeintervals. Each time interval may correspond to a symbol period, a slot, a subframe,etc. The frequency hopping may be performed based on a fixed hopping pattern ora pseudo-random hopping pattern.
Patent MX-2009004172-A (MX)
Title: A floatable wave energy converter and a method for improving the efficiency of a floatable wave energy converter.
Inventor: MICHAEL JOHN MARTIN MCCARTHY
IPC: F03B13/14
Filed: 2007-10-18
Abstract: A wave energy converter (1) comprises a housing (2) extending between a forward end (3) and an aft end (4). Three upstanding air chambers (15) are located in the housing (2) and three corresponding water accommodating ducts (16) extend aft from the air chambers (15) and terminate in aft water accommodating openings (17) for accommodating water into and out of the air chambers (15) as the housing (2) oscillates by pitching in response to passing waves. An air accommodating duct (21) communicates with the air chambers (15) through a manifold (20) for accommodating air into and out of the air chambers (15) as the water level (19a) falls and rises within the air chambers (15) as the housing (2) oscillates. A self-rectifying turbine (22) located in the air accommodating duct (21) powers an electrical generator (24) for generating electricity. A buoyancy tank (31) is located on the housing (2) above the water accommodating ducts (16) aft of the air chambers (15) for maintaining the housing (2) floating in the water. A first stabilising plate (28) extending in a generally forwardly downwardly direction extends from a lower sloping portion (27) at the forward end (3) of the housing (2) for controlling the pitching oscillating motion of the housing (2) relative to wave motion for in turn enhancing the power output produced by the converter (1). A forward ballast tank (31) and a pair of second stabilising plates (30) extending upwardly from the housing (2) enhance the stability of the converter (1).