baber/WOPTO huggingface dataset:
Patent KR-20090049717-A (KR)
Inventor: BYUN MYUNG WOO
IPC: B65D81/18
Filed: 2007-11-14
Abstract: 본 발명은 한국전통식품인 김치를 즉석취식이 가능한 우주식품으로 개발하기 위해 우주환경(저중력, 저기압)에서 사용가능한 김칫국물 흡수 및 압력평형 기능이 내재된 우주김치 포장용 용기에 관한 것으로서, 저장기간의 경과에 의해 발생되는 김칫국물을 흡수하며 저기압, 저중력의 우주환경에서 우주식품의 포장을 개봉하였을 경우 발생할 수 있는 내용물의 비산을 막기 위한 압력평형기능을 수행하는 기체투과필터를 내장되어 이루어져 우주김치포장이 우주환경에서 유용하게 사용될 수 있을 뿐만 아니라, 액상 물질과 고체 성분이 혼합되어 있는 다양한 우주식품의 용기로 활용될 수 있어 우주식품개발 분야에서 선구적인 역할을 수행할 수 있는 것으로, 그 기술적 구성은, 케이스; 상기 케이스의 내측 하부에 구비되는 고흡수성 수지 패드; 상기 고흡수성 수지 패드의 상측에 구비되며 상단엔 하나 이상 다수개의 슬롯이 형성된 받침대; 상기 받침대의 상단에 구비되는 내용물의 상측에 구비되되, 상기 케이스의 상단에 접착되는 필름; 상기 필름의 상단에 구비되는 알루미늄 증착 필름; 및 상기 알루미늄 증착 필름 및 상기 케이스의 상측에 구비되는 덮개;로 이루어진다. 
       
      우주식품, 김치, 고흡수성 수지, 김치국물흡수, 압력평형
Patent KR-20090052735-A (KR)
Inventor: PARK DEOK HOON
IPC: A61P17/14
Filed: 2007-11-21
Abstract: 본 발명은 긴잎모시풀추출물 또는 긴잎모시풀로부터 단리된 신규 생리활성물질의 용도에 관한 것이다. 본 발명은 긴잎모시풀추출물 또는 긴잎모시풀로부터 단리된 신규 생리활성물질인 아피제닌이 TGF beta 생합성을 저해함으로서 탈모증 예방 및 치료에 유용하게 이용될 수 있다. 
       
     탈모, 육모, 긴잎모시풀
Patent KR-20090056251-A (KR)
Title: Metal line fabrication method of cmos image sensor
Inventor: KIM HYOUNG YOON
IPC: H01L27/146
Filed: 2007-11-30
Abstract: A metal line fabrication method of CMOS image sensor is provided to prevent the break down of the metal wiring and improve the transmission capability of the current of the metal wiring by using the titanium silicide film. The metal line fabrication method of CMOS image sensor comprises the formation step of the contact hole applied to the semiconductor substrate(200), and the formation step of the contact plug(206) and the formation step of the first titanium layer(208). The semiconductor substrate has the bottom metal wiring(202) and inter-layer insulating film(204). The inter-layer insulating film covers the bottom metal wiring. The formation step of the contact hole is performed to pattern the inter-layer insulating film and form the contact hole on the inter-layer insulating film. The contact hole is formed in order to expose the down metal wiring through the inter-layer insulating film. The formation step of the contact plug is performed form the contact plug on the inter-layer insulating film in order to fill up the contact hole. The formation step of the first titanium layer is performed to form the first titanium layer on the inter-layer insulating film in order to cover the contact plug.
Patent KR-20090056526-A (KR)
Title: Cleaner equipped heater and method for drying di water
Inventor: PARK CHAN HO
IPC: H01L21/304
Filed: 2007-11-30
Abstract: A cleaner equipped heater and a method for drying deionized water are provided to remove deionized water reaming on a wafer with heat by including a heater and sweeping the wafer. A spin rinse dry apparatus(100) comprises a main body(110) of a bath shape which a motor(120) is installed under. A motor cover covering is installed inside the main body, a cover lift is installed at one side of the motor cover while moving the motor cover to vertical direction. A hood(160) installed at the upper part of the main boy and prevents scattering of chemical to the outside in wafer chuck rotation. The hood lift(170) reciprocates the hood to in vertical direction while supporting the hood. A heater(210) is installed at the upper of the main body, and a heater diver(220) turns and moves the heater within a certain angel while supporting the heater.
Patent KR-20090058237-A (KR)
Title: The method for producing synthesis gas and hydrogen using methane
Inventor: KANG KYOUNG SOO
IPC: C01B3/02
Filed: 2007-12-04
Abstract: A methane reforming method and a method of producing high purity hydrogen gas by reacting water with composite metal oxide are provided to offer hydrogen of high purity and to produce liquid hydrocarbon easily. Synthetic gas containing hydrogen and carbon hydroxide is manufactured by partial oxidation of methane with inner oxygen of composite metal oxide containing Cu-Fe or Sn-Fe. The partial oxidation of the methane is performed in 600 ~ 1000 °C. The composite metal oxide has a molar ratio of Cu/Fe or Sn/Fe of 0.1 ~ 0.5. The composite metal oxide is manufactured by using a Fe precursor, a Cu precursor or a Fe precursor and a Sn precursor. The composite metal oxide of 5 ~ 50 weight% is dipped in zirconia, ceria, alumina or their mixture powder or a carrier. The composite metal oxide is manufactured by thermal treatment in a temperature of 700 ~ 1200°C.
Patent KR-20090060012-A (KR)
Title: Data transfer system, base station and terminal thereof and data transfer method thereof
Inventor: LEE JUNG HWAN
IPC: H04B7/26
Filed: 2007-12-07
Abstract: A data transmission system, a base station, a terminal and a data transmission method thereof for automatically determining transmission speed are provided to reflect the input speed of data transmitted from a base station communication speed for setting up clock speed as minimum data reception speed. A base station(300) stores data delivered from center network(100). A transmission mode transmitting the stored data is determined. A terminal(400) transmits the feedback information to the base station and receives data from the base station. The base station determines the communications speed transmitting data with the terminal in consideration of the input rate of data delivered from the center network.
Patent KR-20080114467-A (KR)
Title: Walking supporting device for baby
Inventor: KIM EUN HEE
IPC: A47D13/04
Filed: 2007-12-10
Abstract: A walking assistant implement for the infant is provided, which enables an infant to learn toddling in a stable posture by leading walking of the infant. A walking assistant implement for the infant comprises: a handle rod(10) which is arranged horizontally so that a baby can hold it by both hands; a vertical post(20) which is connected to one end of the handle rod vertically; and a handle(30) which is connected horizontally to one end of the vertical post and is formed so that a protector can grip.
Patent KR-20090061226-A (KR)
Title: A method of video communication in a portable terminal and an apparatus thereof
Inventor: LEE HAE SUN
IPC: G06V10/98
Filed: 2007-12-11
Abstract: A video call method of a portable terminal and an apparatus thereof are provided to correct video transmitted to a counterpart person during a video call according to a pre-stored reference video, thereby transmitting a screen natural in any direction or at any location. A communications unit(110) sends and receives a video. A camera unit(150) photographs the video. If a video call is connected, a controller(170) compares a feature of a face extracted from the video inputted through the camera unit with a feature of a face extracted from a stored reference video. The controller corrects the video according to the feature of the face extracted from the reference video.
Patent KR-20090061525-A (KR)
Title: Method and system for sampling web documents information
Inventor: WANG JI HYUN
IPC: G06F17/21
Filed: 2007-12-11
Abstract: A method for extracting the structural information of a web document and a system thereof are provided to extract the attributes of a corresponding web site automatically although the learning is performed by tagging a small amount of data in the web site. By learning a web document, in which attributes are manually tagged and which is collected from a web site to be extracted, an attribute learning processing device(100) generates a studying model. An attribute extraction processing device(200) extracts attributes from an original web document. A boundary recognition studying model database(300) provides a database of a boundary recognition studying model among the studying models to the attribute extraction processing device. An attribute recognition studying model database(302) provides a database of the attribute recognition studying model among the studying models to the attribute extraction processing device.
Patent KR-20090062066-A (KR)
Title: Jig device of air heater for fixing mobile phone
Inventor: KANG SEOG YEE
IPC: H05K13/04
Filed: 2007-12-12
Abstract: A jig device of an air heater for repairing a portable terminal is provided to prevent damage to an adjacent circuit device by locally heating an accurate position in order to replace a circuit device. A jig device(1) of an air heater for repairing a portable terminal includes an air heater connection part(10), a hot wind discharge pipe part(20), a position fixing part(30), and a tongs fixing part(40). The air heater connection part is coupled in an end part of an outlet of an air heater. The hot wind discharge pipe part is communicated with the air heater connection part. The hot wind discharge pipe part exhausts a hot wind supplied from the air heater. The position fixing part is inserted to the hot wind discharge pipe part. The tongs fixing part fixes a circuit device by using tongs(41). The tongs fixing part includes an elastic member and an interval control bolt(43). The elastic member is interposed between the tongs. The interval control bolt controls an interval between the tongs.
Patent KR-20090062872-A (KR)
Inventor: PARK DONG CHUL
IPC: B60J7/04
Filed: 2007-12-13
Abstract: A sun roof deflector for vehicles is provided to prevent wind from entering a vehicle by inserting a protrusion between a roof panel and the front part of a sun roof frame. A sun roof deflector(40) comprises: a roof panel(10); a sun roof frame(35) installed on the roof panel; and a protrusion(41) inserted between the roof panel and the front part of the sun roof frame. The protrusion is extended in a width direction of a vehicle in order to prevent the wind from entering inside the vehicle. The protrusion gradually becomes more protrudent from a front side to a rear side. The lower part of the sun roof deflector is extended from the protrusion. A ring-shaped hook(42) hangs on a bracket formed on inner side of the roof panel.
Patent KR-20090065121-A (KR)
Inventor: LEE YU KYOUNG
IPC: H01L21/66
Filed: 2007-12-17
Abstract: 웨이퍼에 형성된 식별부호의 이상유무를 검증하는 식별부호의 신뢰성 평가방법 및 평가장치가 개시된다.  본 발명의 식별부호의 신뢰성 평가방법은 식별부호를 촬영하는 단계, 촬영된 식별부호에 대한 이미지와 픽셀을 대조하는 단계, 이미지에 대응되는 픽셀의 개수 및 크기를 기초로 하여 이미지의 크기를 측정하는 단계 및 측정된 이미지의 크기와 기설정된 식별부호의 표준크기를 비교하여 식별부호의 이상유무를 확인하는 단계를 포함한다.  따라서, 식별부호가 판독된 웨이퍼를 버퍼로 이송하기 전에 식별부호의 이상유무를 판단할 수 있어 웨이퍼 작업 공정의 효율성 및 생산성을 제고할 수 있고, 검증의 신뢰성을 확보할 수 있다. 
       
     웨이퍼, 식별부호, 폭, 높이, 레이저, 이상유무
Patent KR-20090066780-A (KR)
Title: Suction pad
Inventor: KIM JUN WOO
IPC: B65G47/91
Filed: 2007-12-20
Abstract: An adsorption pad is provided to open an adsorption part and adsorb an object so as to reduce adsorption time, adsorb the object irrespective of the size of the object and reduce poor adsorption. An adsorption pad(10) includes a bracket(2) and a plurality of adsorption parts(8). The bracket includes a hose connecting member for receiving a vacuum force from a vacuum device. The hose connecting member has a protrusion shape. The adsorption parts are located under the bracket and arranged on both sides of a central line which divides the bracket into two parts. The adsorption parts adsorb a substrate according to the vacuum force.
Patent KR-20090070804-A (KR)
Title: Method of roll forming
Inventor: LEE MUN YONG
IPC: B21D5/08
Filed: 2007-12-27
Abstract: A roll forming method is provided to prevent a material between the upper and lower rolls from escaping or twisting by forming a forming surface with corrected angle on the upper and lower rolls. A roll forming method comprises a step(S1) of setting a correction angle by drawing a correction line connecting both upper ends of a product about a reference line connecting the right and left bottom sides of the dissymmetric product, a step(S2) of rotating the cross section of the dissymmetric product by the set correction angle so that the forming angle of the product, that is the angle between the reference line and the horizontal line, is inclined as much as the correction angle, a step(S3) of creating a forming pattern for each step to set a forming surface applied to upper and lower rolls of each roll former based on the section pattern of the product in which the correction angle is reflected, and a step(S4) of distributing the dissymmetric forming degree of the product equally and carrying out roll-forming through the upper and lower rolls of each roll former applied with the forming pattern.
Patent KR-20090071004-A (KR)
Title: Gas distribution module and atomic layer deposition apparatus having the gas distribution module
Inventor: SHIN IN CHUL
IPC: C23C16/00
Filed: 2007-12-27
Abstract: A gas distributor module and an atomic layer deposition device with the same are provided to prevent a plurality of source gases from mixing together within a shower head or the gas distributor module. A gas distributor module comprises: a guide frame(21) in which a plurality of gas inlet grooves(211,212,213) is formed; a body(23) installed inside the guide frame top and bottom part, having a plurality of supply flow paths(231,232,233), alternatively discharging a plurality of gases by connecting the gas inlet groove and the flow path; and a driving part(22) running the body. The gas inlet groove is formed in order to make a plurality of gases independently flowed in. A driving part is equipped on the top of the body through the guide frame and has sealing members(27,28) sealing an interval between the driving part and the guide frame.
Patent KR-20070030892-A (KR)
IPC: H04B1/40
Filed: 2005-07-07
Abstract: HSDPA(High Speed Downlink Packet Access) 데이터 전송 방식의 수신 장치에서 TSN 플러시 실행에 의한 시스템의 성능 저하나 문제의 발생을 최소한으로 억제한다.  HSDPA(High Speed Downlink Packet Access) 데이터 전송 방식의 수신 장치에서, 수신하는 트래픽 데이터를 일시 저장하는 복수의 리오더링 버퍼의 각각에 대하여, 그 트래픽 데이터의 QoS 정보에 기초하여 랭크 부여한다.  리오더링 버퍼의 메모리 해방이 필요하다고 판단된 때, 상기 랭크 부여된 리오더링 버퍼의 저랭크의 것부터 메모리 해방한다. 
       
     메모리 해방, TSN 플러시, 트래픽 데이터, 리오더링 버퍼, QoS 정보
Patent KR-20070039091-A (KR)
Inventor: MINOR BARBARA HAVILAND
IPC: C09K5/00
Filed: 2005-06-21
Abstract: 본 발명은 1종 이상의 탄화수소를 포함하는 냉매 및 에어 컨디셔닝 시스템에 사용하기 위한 조성물에 관한 것이며, 이는 원심 압축기를 이용하는 시스템에 또한 유용하다.  이들은 냉각 또는 열을 생성하기 위한 방법에 또는 열 전달 유체로서 유용하다. 
     냉매, 열 전달 유체 조성물, 에어 컨디셔닝 시스템, 공비성 혼합물, 자외선 형광성 염료
Patent KR-20070035065-A (KR)
Title: 건조물, 또는 수성 현탁물 또는 분산물 형태의, 무기 물질및 결합제를 함유하는 자체-결합성 안료 입자의 제조 방법
IPC: C09C3/08
Filed: 2005-07-12
Abstract: 본 발명은 자체-결합성을 가지며, 건조물, 또는 수성 현탁물 또는 분산물 형태이고, 적어도 하나의 무기 물질 및 적어도 하나의 결합제를 함유하는 안료 입자의 제조 방법에 관한 것으로, 본 발명에 따른 안료입자의 제조 방법은 a) 적어도 하나의 무기 물질의 적어도 하나의 수성 현탁물을 형성시키고 하기 단계 c)를 위하여 그라인더에 도입시키는 단계, b) 적어도 하나의 결합제의 적어도 하나의 수성 용액 또는 현탁물 또는 수성 에멀젼을 형성시키거나 취하여 하기 단계 c)를 위하여 그라인더에 도입시키는 단계, c) 상기 단계 a)에서 얻은 수성 현탁물(들)을 단계 b)에서 얻은 적어도 하나의 수성 용액 또는 현탁물 또는 에멀젼과 공분산시켜서 자체-결합성 안료 입자의 수성 현탁물을 얻는 단계, d) 선택적으로 상기 단계 c)에서 얻은 수성 현탁물 또는 분산물을 적어도 하나의 결합제의 적어도 하나의 수성 용액 또는 현탁물 또는 에멀젼과 분산(grinding)시키는 단계, e) 선택적으로 상기 단계 c) 또는 단계 d)에서 얻은 수성 현탁물을 건조시키는 단계, f) 상기 단계 c) 또는 d)에서 얻은 수성 현탁물의 농도를 열적 또는 물리적 농축 방법을 통해 증가시키는 단계, 및 g) 상기 단계 f)에서 얻은 수성 현탁물을 적어도 하나의 분산제 및/또는 적어도 하나의 습윤제를 사용하여 분산시키는 단계를 포함한다.  
       
      안료, 결합, 분산제, 현탁,
Patent KR-20080003765-A (KR)
Title: Electrode for fuel cell and membrane electrode assembly
Inventor: JOBOJI TOHRU
IPC: H01M4/96
Filed: 2006-04-27
Abstract: Disclosed is a fuel cell system capable of producing a higher power output. Specifically disclosed is an electrode for fuel cells comprising a gas-permeable base and an anode catalyst layer (92a) or a cathode catalyst layer (93a) formed on one surface of the base and loaded with a catalyst. The anode catalyst layer (92a) and the cathode catalyst layer (93a) contain a carbon aerogel which is obtained by pulverizing an organic wet gelled product for forming gel fine particles, then performing a solvent exchange by bringing the thus-formed gel fine particles into contact with a water-soluble organic solvent and subjecting the resulting gel fine particles to supercritical drying for obtaining a gel dried powder, and finally thermally decomposing the gel dried powder.
Patent KR-20070065886-A (KR)
Title: Consortium of nitrifying bacteria
Inventor: DRAHOS DAVID J
IPC: C12N1/20
Filed: 2005-10-12
Abstract: The present invention relates to a consortium of Nitrosomonas eutropha and Nitrobacter winogradskyi, which is more effective at removing ammonia and nitrite than the commonly used consortium of Nitrosomonas europea and Nitrobacter winogradskyi, particularly in aquaculture such as shrimp ponds. Supplementation of the consortium in aquaculture such as shrimp ponds may lead to an increase in total yield, an increase in size, a decrease in Food Conversion Ratio (less food required per kg of shrimp obtained), and an increase in total per pond sales.
Patent KR-20080020975-A (KR)
Title: Rotisserie oven having horizontally and vertically oriented cooking elements
Inventor: POPEIL RONALD M
IPC: F27D11/00
Filed: 2005-08-08
Abstract: Indoor use rotisserie ovens which have construction features and scale which make the cleaning process easier. Shown are indoor use rotisserie ovens which also may rotate cooking foods about either a horizontal or vertical axis, which makes their applications more versatile. Construction features include: a scale appropriate for cleaning in a typical kitchen sink, use of removable electrical components, and single oven wall construction, all to allow easy cabinet cleaning. Also shown is a locking tab manufacturing detail which creates an inexpensive, light weight, oven cavity, which is easy to clean and also permits oven cavity washing and/or immersion in water. This manufacturing detail also is easy to handle by the end-user without projecting sharp edges. Self lubricated spit assembly axles are shown as well to help deaden sound. ® KIPO & WIPO 2008
Patent KR-20070073809-A (KR)
Title: Sorting system using a roller-top conveyor belt
Inventor: BOELAARS HENK W M
IPC: B65G47/53
Filed: 2005-09-27
Abstract: A sorting conveyor system in which a main conveyor (10) is intersected by one or more cross conveyors (34) forming sorting stations at one or more gaps (14) along a main conveying path (12). The cross conveyor (34) includes a roller-top belt (36) having rollers (50) extending outward of a top article-supporting side (52) and arranged to rotate about axes (54) perpendicular to the main conveying path (12). The cross conveyor (34) includes a bidirectional drive (38) to selectively advance the roller-top belt in one of two opposite directions to discharge articles (20) transferred onto the cross conveyor in the gap off the side of the main conveying path. The cross conveyor also serves as a low-friction roller-top bridge when the roller-top belt (36) is stopped. The bridge allows articles to cross the gap from an upstream portion (16) of the main conveyor to a downstream portion (18).
Patent KR-20070089911-A (KR)
Title: Confectionery product
Inventor: LUND KIRSTEN
IPC: A23G4/06
Filed: 2005-10-10
Abstract: The invention relates to a confectionery product comprising a polymer system, flavor and sweetener, wherein at least 20% by weight of said confectionery product comprises substantially non-elastomeric polymer and less than about 5% by weight of said confectionery product comprising one or a combination of elastomeric polymers. wherein said confectionery product is characterized by having a tan (delta) above 1 measured at a frequency of about 1 Hz. And wherein the tan (delta) is defined as (loss modulus G"/storage modulus G'). According to the present invention, a new confectionery product has been obtained having texture properties emulating toffee but comprising a part, which is retained in the mouth during chewing.
Patent KR-20070086286-A (KR)
Title: Apparatus and method for controlling fuel injection of internal combustion engine, and internal combustion engine
Inventor: HIROWATARI SEIJI
IPC: F02D41/30
Filed: 2005-12-12
Abstract: An internal combustion engine has a fuel injection valve. To cause an actual air-fuel ratio of air-fuel mixture burned in the engine to be equal to a target value, an electronic control device corrects a fuel injection amount from the fuel injection valve using a feedback correction value. The feedback correction value is changed based on the actual air-fuel ratio. The electronic control device computes, as a safeguard value, a value of the feedback correction value that causes a fuel injection time, which is an instruction sent to the fuel injection valve, to be a permissible minimum time. When the fuel injection time is less than the permissible minimum time, the electronic control device limits the lowest value of the feedback correction value to the safeguard value. As a result, the actual air-fuel ratio is prevented from being rich.
Patent KR-20070090017-A (KR)
Title: Cholesteric monolayers and monolayer pigments with particular properties, their production and use
Inventor: KASCH MICHAEL
IPC: C09K19/04
Filed: 2005-11-28
Abstract: The invention provides novel cholesteric monolayers and pigments obtained therefrom with high brilliance and viewing angle-dependent colour change (colour-flop/tilt effect) with additional particular properties such as magnetizability, conductivity, fluorescence, phosphorescence and increased hiding power, a process for their production and their use.
Patent KR-20070100751-A (KR)
Title: Method for producing polycarbonates
Inventor: KAUTH HERMANN
IPC: C08G64/24
Filed: 2005-12-09
Abstract: The invention relates to a method for producing polycarbonates, preferably, with a content of 0.25 ppm to 180 ppm, which is measured according to hydrolysis of the carbonate structures, on compounds of formulae (1) or (2): wherein R1 and R2 independently represent hydrogen or C1-C12-alkyl or R1 and R 2 together represent C4-C12-alkylides, R 3 and R4 independently represent hydrogen, C1-C12-alkyl or R3 and R4 form cyclohexyl or trimethylcyclohexyl with hydrogen atoms whereon they are joined. The invention is characterised in that in the phosgenation step, the temperature is between 0-40 °C and the temperature of the reaction mixture at the time when the catalyst is added is between 10-40 °C, the catalyst is present in the solution and the ratio between of the mole bisphenols in relation to the mole phosgenes is 1:1.05-1:1.20.
Patent KR-20080016782-A (KR)
Title: Cluster tool architecture for processing a substrate
Inventor: ISHIKAWA TETSUYA
IPC: H01L21/00
Filed: 2005-12-21
Abstract: Embodiments generally provide an apparatus and method for processing substrates using a multi-chamber processing system (e.g., a cluster tool) that has an increased throughput, increased reliability, substrates processed in the cluster tool have a more repeatable wafer history, and also has a smaller system footprint. In one embodiment of the cluster tool, the cost of ownership is reduced by grouping substrates together and transferring and processing the substrates in groups of two or more to improve system throughput, and reduces the number of moves a robot has to make to transfer a batch of substrates between the processing chambers, thus reducing wear on the robot and increasing system reliability. Embodiments also provide for a method and apparatus that are used to increase the reliability of the substrate transfer process to reduce system down time.
Patent KR-20070100349-A (KR)
Title: Method and device for mandibular advancement
Inventor: YAN GUOPING
IPC: A61F5/042
Filed: 2006-01-09
Abstract: An orthotic device (100) for retaining a patient's mandible in an advanced or protrusive position comprises an intraoral anterior mandibular abutment surface (125) for resisting mandibular retraction by abutting the gingiva covering the mandible and an extramaxillary anterior maxillary abutment surface (115) against which the intraoral anterior mandibular abutment surface (125) is braced. In order to resist rotation of the dental orthotic produced by the interaction of the intraoral anterior mandibular abutment surface and the extramaxillary anterior maxillary abutment surface, the orthotic device is provided with an intraoral posterior maxillary abutment surface (140). The relative positions of the maxillary and/or mandibular abutment surfaces may be adjusted to suit the requirements of the user.