baber/WOPTO huggingface dataset:
Patent KR-20020056040-A (KR)
Title: Movable Air-Conditioner
Inventor: AHN CHEOL O
IPC: F24F1/00
Filed: 2000-12-29
Abstract: PURPOSE: A portable air conditioner is provided to be freely movable by recycling condensed water generated in an evaporator to support heat exchange of a condenser without discharging to outside. CONSTITUTION: An air conditioner includes a compressor(1); a condenser(2) with a condenser blowing fan(3); an expansion valve(4); an evaporator(5) with an evaporator blowing fan(6) rotated by a single motor(8) together with the condenser blowing fan; a drain pipe(10) flowing condensed water generated in the evaporator to the condenser; a water tank(20) storing condensed water passing the condenser; and a spray device(30) comprising an ultrasonic vibrator(32) generating ultrasonic waves and a blowing fan(34) spraying atomized condensed water to spray condensed water in the water tank to the condenser.
Patent KR-20020056231-A (KR)
Title: Method for checking state of service valve in heat pump air-conditioner
Inventor: KANG BYEONG SIK
IPC: F24F11/00
Filed: 2000-12-29
Abstract: PURPOSE: A method for checking condition of service valve of air conditioner used for cooling and heating is provided to accurately determine opening or closing condition of the service valve during test operation. CONSTITUTION: A method includes the steps of: a starting step starting test operation of a system; a measuring step measuring outdoor temperature and indoor temperature; a calculating step calculating difference between the outdoor step and the indoor step; a test operation time determining step determining time for test operation according to the calculated difference of temperature; and a determining step trying out the system for the time set up by the difference between the outdoor temperature and the indoor temperature and determining a service valve is opened if difference between temperature of a condenser constituting the system and temperature of air neighboring the condenser is over reference value and determining closed if the difference is under the reference value.
Patent KR-20020058609-A (KR)
Title: Microchannel Array Structure Embedded In Silicon Substrate And Its Fabrication Method
Inventor: CHOI CHANG EOK
IPC: B81B7/04
Filed: 2000-12-30
Abstract: PURPOSE: A microchannel array structure laid in silicon base plate and manufacturing method of the same are provided to minimize influence on physical and chemical qualities of a lower silicon base plate. CONSTITUTION: A structure includes microchannel arrays(102) laid in a silicon base plate(101) and formed by a plurality of super-fine microchannels integrated in high density; microchannel outer wall membranes(103) evenly deposited on the base plate and the microchannel arrays and interposed between the super-fine microchannels to partition the super-fine microchannels; and a heater or an electrode(104) and an electric connection pad(105) formed on uppers part of the microchannel outer wall membrane.
Patent KR-20010022243-A (KR)
Title: 굴절률 분포형 광섬유
IPC: C08F220/12
Filed: 1998-07-27
Abstract: 본 발명은 80℃ 이상의 유리 전이 온도 (Tg)를 갖는 다수의 공중합체 (P1-Pm)의 비혼합층 (LNB1-LNBm)이 동심원으로 적층되어 있는 다층 구조를 가지고, 공중합체 (P1-Pm)가 각각 2종 이상의 비닐 단량체 (M1, M2, ... 및 Mn), 및 M1, M2, ... 및 Mn 단위를 포함하는 공중합체 CP을 포함하는 1종 이상의 동종중합체 (HP1, HP2, ... 및 HPn)(이러한 동종중합체의 굴절률이 순차적으로 감소함)로 구성된 군에서 선택되며, 다층 구조의 중심 부분에서 가장 높고 표면 부분으로 향할수록 순서대로 감소하는 굴절률을 갖는 굴절률 분포형 광섬유에 관한 것이다.  이 광섬유는 낮은 전송 손실, 큰 개구 수 및 우수한 습열 내성을 갖는다.
Patent KR-20010015743-A (KR)
Title: 왕복운동기관의 경금속 크랭크케이스 내부로 주조되는실린더 라이너 블랭크의 생산방법
IPC: B21H7/14
Filed: 1999-01-23
Abstract: 상당한 결합작용에 의해 경금속 크랭크케이스의 주조재료내에 실린더라이너가 고정될 수 있도록, 표면활성화작업이 이루어진다.  표면활성화작업을 위해 실린더라이너가 기계적으로 조대화 처리된다.  처리된 표면 내부로 동입자들이 이식되는 것이 유리하다.  표면활성화작업 및 주조작업 사이의 시간간격이 작게 하는 것이 필요하다.  또한 활성화된 표면은 가능한 멀리 손으로 접촉되지 않아야 한다.
Patent KR-20010031294-A (KR)
Inventor: ZARKA PHILIPPE ETIENNE
IPC: C08L71/02
Filed: 1998-10-21
Abstract: There is described a polyol formulation comprising 20 to 65 wt.% of polyol of a first type having a number average molecular weight of greater than 800, a hydroxyl value of less than 200 mg KOH/g and an ethylene oxide content of less than 75 wt.% and, forming a miscible mixture therewith, 35 to 80 wt.% of polyol of a second type having a number average molecular weight of less than 1000, a hydroxyl value of greater than 300 mg KOH/g and an amine content (expressed in terms of the percentage of N) of at least 0.2 wt.%. The formulation is especially useful for preparing a semi-flexible polyurethane foam having a softening temperature of 120 °C or more which may be used in insulating pipes.
Patent KR-20010031607-A (KR)
Title: 둘 이상의 피부 보호 조성물이 배치된 웹 물질 및이로부터 제조된 제품
IPC: A61F13/472
Filed: 1998-10-19
Abstract: 둘 이상의 피부 보호 조성물이 배치된 웹 물질.  피부 보호 조성물은 보통의 접촉 및/또는 착용자의 움직임 및/또는 체온에 의하여 착용자의 피부로 이동될 수 있다.  본 발명에 개시된 피부 보호 조성물은 사용시 이동되어 착용자의 피부 건강을 유지 및/또는 향상시키도록, 예컨대 피부 보호용 차단 이점 또는 치료 이점을 제공하도록; 커프스가 착용자의 피부와 접촉하는 영역에서 커프스와 피부 사이의 마찰을 최소화하여, 피부 자극을 덜 유발시키도록; 피부상에서 BM을 더 깨끗이 닦아내도록; 또는 제품의 커프스의 차단성을 향상시키도록 선택된다.  본 발명의 웹 물질은 내구성 제품 및 일회용 흡수 제품 둘 다에서 광범위한 잠재적 용도를 가지지만, 일회용 기저귀, 실금자용 브리이프, 배변 연습용 팬티, 생리대 등과 같은 일회용 흡수 제품에 사용하기에 특히 적합하다.
Patent KR-20010024672-A (KR)
IPC: G09G3/36
Filed: 1999-10-05
Abstract: 디스플레이 장치는 라인 그라프 근사법에 의한 γ보정 회로를 갖는다. 메모리는 디스플레이 장치의 γ특성 데이터를 저장한다. 입력 비디오 신호의 휘도 특성을 조정하기 위해서 γ특성 값, 백 레벨(white level) 값, 콘트라스트 값, 및 흑 레벨 값을 입력한다. γ변환부는 입력 비디오 신호 데이터가 디스플레이 장치의 이상적인 출력 휘도 값으로 변환되도록 γ보정의 기울기 및 절편을 설정한다.
Patent KR-20010033931-A (KR)
Title: 사운드 이미지 정위 처리 장치
IPC: H04S1/00
Filed: 1998-12-28
Abstract: 서라운드 레프트 신호가 입력되고, 또한 제1 지연기(11) 및 제1 사운드 이미지 정위 필터(12)로 이루어지는 제1 처리 회로(10), 서라운드 라이트 신호가 입력되고, 또한 제2 지연기(21) 및 제2 사운드 이미지 정위 필터(22)로 이루어지는 제2 처리 회로(20), 서라운드 레프트 신호와 제2 처리 회로(20)의 출력 신호를 가산하여, 청취자의 전방에 설치되는 좌측 스피커에 대한 음성 신호로서 출력하는 가산기(1), 및 서라운드 라이트 신호와 제1 처리 회로(10)의 출력 신호를 가산하여, 청취자의 전방에 설치되는 우측 스피커에 대한 음성 신호로서 출력하는 가산기(2)를 포함하고 있다.
Patent KR-20010034206-A (KR)
Title: 자명식 물품감시장치
IPC: G08B3/10
Filed: 1999-11-22
Abstract: 일반적인 소매점포 등에 있어서 상품의 몽태치기(도난) 등을 방지하기 위해 상품에 고착해서 사용하는 자명식 물품감시장치에 관한 것으로서, 주파수대 예를 들면, 8. 2MHz에서의 미약한 전파에서도 안정적으로 동작하고 또 4년간정도의 전원 수명을 갖는 자명식 물품감시장치(태그)의 수신회로를 제공하기 위해, 6∼10MHz에 중심주파수를 두고, 중심주파수에서 ±5∼15%의 범위에서 스위프된 미약한 전파를 수신하여 경보를 발행하는 자명식 물품감시장치에 있어서, 장치에 중심주파수와 동조한 동조회로 및 동조회로의 출력을 증폭, 검파하는 차동형 증폭기를 마련하고, 차동증폭기의 부하저항을 3∼5MΩ으로 해서 차동증폭기의 동작전류를 3㎂ 이하로 함과 동시에 차동형 증폭기의 증폭, 검파용의 트랜지스터(Tr1)의 베이스-에미터 사이에 차동형 증폭기의 쌍으로 되는 다른 트랜지스터(Tr2)의 다이오드 접속된 베이스-에미터 사이를 접속해서 온도 드리프트에 대한 바이어스의 안정화를 실행하는 구성으로 하였다. 
     이러한 구성으로 하는 것에 의해, 외래잡음 특히 휴대전화의 주파수대에서의 오동작을 방지하고, 8. 2MHz에서의 미약한 전파하에서도 안정적으로 동작하며 또 2년간 정도의 전원 수명을 갖는 자명식 물품감시장치(태그)의 수신회로를 실현할 수 있다는 등의 효과가 얻어진다.
Patent KR-20010041381-A (KR)
Title: 반응 증류에 의한 폴리아미드의 제조
IPC: C08G69/04
Filed: 1998-12-16
Abstract: 본 발명은 반응 증류법으로 아미노니트릴(A) 및 경우에 따라, 다른 폴리아미드-형성 단량체 및(또는) 올리고머를 물(D)과 반응시켜 폴리아미드, 그의 올리고머 또는 그의 혼합물(임의로 다른 반응 생성물도 포함)을 제조하는 방법에 관한 것이다.  반응 생성물(P)은 반응 증류 장치의 탑저에서 추출되고, 생성된 암모니아 및 경우에 따라, 다른 저분자량의 생성 화합물 및 물은 탑정에서 회수된다.
Patent KR-20010043032-A (KR)
Title: 1-[(1-치환-4-피페리디닐)메틸]-4-피페리딘 유도체, 그의제조방법, 그것을 함유하는의약조성물 및 이 화합물의중간체
IPC: A61K31/445
Filed: 1999-04-19
Abstract: 하기 일반식(I)으로 표시되는 화합물 또는 그의 생리적으로 허용되는 산부가염, 
     
       
     
     [식 중, Ar는 하기 일반식(Ar-1) 또는 (Ar-2)를 의미하고, 
     
       
     
     A는 -Z-N(Q 1 )(Q 2 ), -CO-R 7 또는 -(CH 2 )p-CH(R 8 )-COR 9 으로 표시되는 기이다], 
     그의 제법, 및 그의 화합물을 유효성분으로하는 의약조성물 및 그의 중간체.  본 발명의 화합물은 5-HT 4 수용체에 대해서 강력한 친화성을 나타내고, 소화관운동촉진약 또는 소화관기능개선약으로서 유용하다.
Patent KR-20010043913-A (KR)
Title: 플라스마 방전 기체가 처리 챔버로 주입되는 고전력 ｒｆ전극을 절연시키는 방법 및 장치
IPC: H01L21/302
Filed: 2000-03-16
Abstract: 기판(30)을 처리하기 위한 처리 시스템(10)은 처리 공간(20)내에서 기판(30)을 지지하기 위한 지지 구조를 포함하는 처리 챔버(processing chamber)(16)를 구비한다. 기체 입구(gas inlet)(21)는 처리 기체(16)를 주입하고, 샤워헤드(showerhead)(14)는 입구(21)로부터 처리 기체를 분산시킨다. 전기 에너지는 플라스마를 형성하도록 샤워헤드(14)를 바이어스하고, 제1 및 제2 전기적 절연체 소자(12)는 샤워헤드(14)를 전기적으로 절연시키도록 샤워헤드(14)와 처리 챔버(16) 사이에 위치한다. 전기적 절연체 소자(12)는 각각 처리 기체(16)를 전달하기 위한 통로(passage)(46)를 갖고, 절연체 소자의 각 통로는 서로 측면으로 공간을 둔다. 채널은 소자 중 하나에서 형성되고 통로(46)를 함께 연결시켜 완전한 통로를 형성하도록 공간을 둔 통로 사이에 확장된다.
Patent KR-20020057587-A (KR)
Title: The personal computer ISA bus HDLC card using MPC 860 CPU
Inventor: BAE MYEONG WON
IPC: G06F13/00
Filed: 2001-01-02
Abstract: PURPOSE: An HDLC(High-level Data Link Control) card for ISA(Industrial Standard Architecture) bus of PC using an MPC860 CPU is provided to improve speed and stability by downloading an HLDC frame in a memory by the MPC860 CPU and to execute the communication with only polling without making a communication driver for a Windows program. CONSTITUTION: The HDLC card comprises the MPC860 CPU(100) carrying out the final input and output of the HLDC communication frame, an MPC860 bus(140), a RAM(110) activating the MPC860 operation program by dumping the code of the ROM and storing various kinds of variables, a ROM(120) coding a program of the MPC860 CPU, the ISA bus(150) and an ISA interface circuit(130) exchanging the data through the ISA bus between a CPU of a PC and the MPC860 CPU.
Patent KR-20010070428-A (KR)
Title: Method for assigning alternative sector, method for reading data, disk drive apparatus, and apparatus for writing/reading av data
Inventor: ASANO HIDEO
IPC: G11B20/18
Filed: 2001-01-05
Abstract: PURPOSE: To prevent the deterioration in performance in reading the data in alternate sectors. CONSTITUTION: It is assumed that a write request of data (a) is made to a sector A, but since the sector A is a defective sector, the data is written into the alternate sector A' of an alternate sector region X. Next, when the write request for data (b) is made to a sector B, the alternate sector B' succeeding to the alternate sector A is subjected to reassignment. The defective sector C to which the write request for data (c) is made is similarly reassigned to the alternate sector C'. Accordingly, the continuous data (a), (b) and (c) are eventually written into the continuos sectors A', B' and C' within the same alternate sector X.
Patent KR-20020063017-A (KR)
Title: semiconductor memory device having word line boosting circuit for use in low power consumption and word line boosting method therefore
Inventor: KIM DU EUNG
IPC: G11C5/14
Filed: 2001-01-26
Abstract: PURPOSE: A semiconductor memory device having a word line boosting circuit appropriate for low power consumption and a word line boosting method thereof are provided, which restrict a boosting section using an ATD(Address Transfer Detect) and also prevents a boosting operation in an unnecessary section after data sensing. CONSTITUTION: The semiconductor memory device has a boosting circuit and a word line driving part(14) to apply a supply voltage level applied to a word line different from a power supply voltage. A sensing detection part(24) outputs a disable signal to disable the word line driving part and the boosting circuit by detecting a level difference from a selected memory cell of the above device. The sensing signals are signals from output ports of a sense amplifier sensing and amplifying a difference voltage of a bit line pair connected to the memory cell.
Patent KR-20020065196-A (KR)
Title: Buckle for belt
Inventor: HWANG SO HYEON
IPC: A44B11/26
Filed: 2001-02-06
Abstract: PURPOSE: A belt buckle is provided to allow a user to rapidly fasten the free end of a belt to the waist of the user as well as to freely rotate a main plate of the buckle, and to simplify a manufacture process thereof. CONSTITUTION: The belt buckle is comprised of a main plate(110) having projected two brackets(123) spaced at a distance same with a width of a belt, a belt stoppage member(210) constructed to be coupled with the brackets and separated from the belt according to the engagement/release of a toothed portion of a ratchet of a rotating member, and a U-shaped collar(130) connected to the brackets on its both ends to guide a free end of the belt, and the rear portion of the main plate to be coupled with the belt is rotatably installed with a belt fixing member(310) into which the one end of the belt is fitted and fixed.
Patent KR-20020065297-A (KR)
Title: Method of Selling Products at the Lowest Price without Any Margin and Promoting Cross-Selling Marketing on the Internet Commerce
Inventor: YOO IN O
Filed: 2001-02-06
Abstract: PURPOSE: A method for lowest price article selling and cross-selling on the electronic commerce is provided to make a purchaser buy a specific article at the lowest price and to induce the continuous purchase of purchasers by sending advertising e-mails to the purchasers. CONSTITUTION: A member DB is built up by using the information about members(S101). An article DB is built up by collecting the information about articles(S102). The lowest prices of the articles are announced through the Internet sites(S104). Members agree to receive advertising e-mails for a specific period(S106). The members select favorite articles(S108). The information about the selected articles is stored in the member DB(S109). If a limited amount of articles are sold out, selling of the corresponding articles is finished(S111). After confirming payment, the articles are delivered to purchasers(S113). The advertising mails including the advertisement on the favorite articles and the links to corresponding shopping malls are transmitted to the member. The history about the purchases is stored in the purchase history of the member DB.
Patent KR-20020065668-A (KR)
Title: Providing method for music service and operating method of its system
Inventor: LEE SEUNG CHUL
IPC: G06F17/00
Filed: 2001-02-07
Abstract: PURPOSE: A music service system and method are provided to enable a user to easily search for a desired music by inputting tones and rhythms of a specific music, specially in a case of not knowing details of the music. CONSTITUTION: The system comprises a database(100), a web server(200), and a user terminal(300). The database(100) stores the music, and the tones and rhythms of each music properly classified by certain criteria. The web server(200) operates a web site for offering a music service. The user terminal(300), including a voice input module(310) for converting a voice, input by the user, into a digital voice signal, transmits the converted signal to the web server(200). The voice input module(310) includes a microphone(311), a disk(312), and a stand key board(313). The microphone(311) enables the user to directly input the voice. The disk(312) stores temporarily various music files. The stand key board(313) makes certain tones and rhythms by using a MIDI(Musical Instrument Digital Instrument) program. The web server(200) includes a receiver(210), a music selector(220), and a display(230). The receiver(210) receives the converted digital voice signal from the user terminal(300), the music selector(220) analyzing the digital voice signal and selecting a specific music based on the analysis result, and the display(230) displaying a title of the selected music on a web page. The music selector(220) separates the voice signals into the tones and the rhythms, compares the tones and the rhythms with those stored in the database(100), and collects the detailed data of similar music extracted via the comparison process.
Patent KR-20010087217-A (KR)
Inventor: BECHTEL HANS-HELMUT
IPC: H01J11/12
Filed: 2001-02-27
Abstract: PURPOSE: A plasma picture screen with UV light emitting layer is provided to achieve an improved luminance. CONSTITUTION: A UV light emitting layer(8) is provided on the front plate(1), which comprises a glass plate(3) on which a dielectric layer(4) and a protective layer(5) are provided, or on the carrier plate(2) with the phosphor(10). The layer(8) comprises a VUV phosphor which converts the VUV light of the plasma discharge into UV light with a wavelength between 200 and 350 nm and emits this in the direction of the phosphor layer(10).
Patent KR-20020071514-A (KR)
Inventor: KIM JI HUI
IPC: A61Q11/00
Filed: 2001-03-06
Abstract: PURPOSE: A toothpaste composition comprising natural minerals such as SiO2, CaO, MgO, Fe2O3 and the like is provided which is effective in the prevention and treatment of dental plaque on teeth, dental caries, periodontal disease and gingivitis and enhances the person's immune system response and ability to resist bacterial infection in mouth that causes plaque or the like. CONSTITUTION: This toothpaste composition contains 48 to 53% by weight of SiO2, 20 to 25% by weight of Al2O3, 0.1 to 0.2% by weight of Fe2O3, 0.17 to 0.23% by weight of TiO2, 0.01% by weight of CaO, 0.22 to 0.27% by weight of Na2O3 and 4.3 to 4.8% by weight of K2O as main components, 5.5 to 6.0% by weight of MnO, 1.8 to 2.3% by weight of CuO, 3.0 to 3.5% by weight of ZnO, 0.4 to 0.45% by weight of CoO, 0.65 to 0.7% by weight of MoO, 52 to 57% by weight of BO, 1.0 to 1.5% by weight of CrO, 0.9 to 1.0% by weight of NiO, 0.7 to 1.0% by weight of VO, 4.8 to 5.3% by weight of NO and 5.0 to 5.5% by weight of PO.
Patent KR-20010069329-A (KR)
Title: structure for mounting a mould
Inventor: KIM DAE HO
IPC: E04G11/06
Filed: 2001-03-08
Abstract: PURPOSE: A structure and a method to install an outer form for building construction is provided to construct an outer form while the outer form is placed in a lower outer wall and then adjusted by an adjusting member. CONSTITUTION: A horizontal leveler(10) consists of a lower plate(11) and an upper plate(12). The lower plate is fixed on a form(1) for a floor, and the upper plate is installed on the upside of the lower plate to be adjusted upward or downward by screws(13). One end of a fixing screw(20) is inserted in the outside of an outer wall(2) of a lower floor, and then fixed. And, the other end is exposed to the outside of the outer-wall. An outer form(30) is installed closely on the outside of the outer-wall of the lower floor, and the bottom is fixed on the fixing screw by a nut. Several through-holes(31) are formed in the center, and a nut(32) is formed toward the outside of the through hole. An adjusting member(40) is formed in the outer form and the upper plate of the horizontal leveler and adjusts the vertical state of the outer form.
Patent KR-20020075986-A (KR)
Title: Pole of golf excercise site
Inventor: KIM SI MYUNG
IPC: A63B71/02
Filed: 2001-03-26
Abstract: PURPOSE: A pole of a golf practice field is provided to prevent the damage of pole by external force. CONSTITUTION: The pole(P) of a golf practice field comprises: a pair of caps(110,120) provided with cylinders(111a,121a) installed on one side of each flange(111,121), and a wire ring(112) and a turnbuckle ring(122) installed oppositely on a contact part between the outsides of each cylinder(111a,121a) and each flange(111,121); many steel wires(150) installed in the cylinders(111a,121a); an outer spring(140) located on the outside of the steel wire(150); and a pair of turnbuckles(123) connected to the turnbuckle ring(122) and the wire(113) to prevent the separation of the caps(110,120).
Patent KR-20020079128-A (KR)
Title: Maleimide-photoresist polymer containing halogen and photoresist composition comprising the same
Inventor: JUNG JAE CHANG
IPC: G03F7/004
Filed: 2001-04-13
Abstract: PURPOSE: Provided are a maleimide-based photoresist polymer containing a halogen element and a photoresist composition containing the polymer, which are excellent in etching resistance, heat resistance, and adhesive property and can be used for a lithography process using VUV light source. CONSTITUTION: The photoresist polymer contains a first monomer represented by the formula 1, a second monomer represented by the formula 2, and at least one monomer selected from the formula 3 and 4 as a third monomer. The photoresist polymer is poly£N-perfluoropropyl maleimide/t-butyl 5-norbornene-2-carboxylate/2-(perfluorooctyl)ethyl methacrylate|. And the photoresist composition contains the photoresist polymer, an organic solvent, and a photoacid generator. In the formula, X1 and X2 are H, CF3, or a halogen element, Y1 and Y2 are O, CH2, CH2CH2, R1 is F or CF3, R2 to R6 and R11 to R15 are H, F, CF3, OH, C1-C10 alkyl, C1-C10 perfluoro alkyl, or C1-C10 alkoxy, R7 to R10 are H, F, CF3, or CH3, and f, g, and i are integers of 0 or 1.
Patent KR-20020024767-A (KR)
Title: Railway rolling stock
Inventor: GODA KENJIRO
IPC: B61F5/10
Filed: 2001-04-13
Abstract: PURPOSE: A railway vehicle is provided to obtain an inclination device having a simplified and lightened structure and having improved riding comfort in the right and left side. CONSTITUTION: A vehicle body(8) is supported on a bogie frame(4) through an air spring(5). Along the width direction of the vehicle body, a torsion bar(11) is provided on the bogie frame. At both ends of the torsion bar, links(15) for inclining the vehicle body, through levers are provided. Accordingly, a rolling displacement of the vehicle body is restricted and a vertical displacement is not restricted. Due to the inclined geometry of the levers towards the center longitudinal plane of the vehicle body, the vehicle body is tilted in the proper direction when an excessive centrifugal acceleration occurs. An inclination device having a lightweight structure, a good riding comfort, and high failsafe characteristic can be obtained.
Patent KR-20020080929-A (KR)
Title: Mouse for computer
Inventor: PARK SIN SUNG
IPC: G06F3/0354
Filed: 2001-04-18
Abstract: PURPOSE: A computer mouse capable of being moved easily is provided to reduce a friction of the mouse at bottom surface by forming a plurality of balls at the lower surface of a mouse and making the balls be slid. CONSTITUTION: In a mouse(1) for controlling a cursor movement of a computer monitor and comprising the upper case(20) and the lower case(10), a plurality of ball housings(110) is mounted for making the lower surface of the lower case be supported from the bottom surface. A ball(120) the lower portion thereof is protruded from the ball housings(110) is mounted for making the mouse be slid. A cap(130) is mounted for preventing the ball(120) from being separated. Another ball is mounted in the ball housings(110) for supporting the ball(120).
Patent KR-20020082265-A (KR)
Title: Drain-pan for air conditioner
Inventor: BAE JAE BEOM
IPC: F24F13/22
Filed: 2001-04-20
Abstract: PURPOSE: A drain pan of air conditioner is provided to simplify parts constituting the air conditioner. CONSTITUTION: A drain pan(50) includes a drain pan part(51) separately formed and placed under a heat exchanger to collect falling condensed water; drain outlets(53) placed on both ends of the drain pan part to discharge the condensed water collected in the drain pan part; a piping mounting part(55) formed integrally with the drain pan part for a piping and an electric wire mounted thereon; and a piping cover(57) covering the piping mounting part and coupled to an inside of an outer case(30).
Patent KR-20010069649-A (KR)
Title: Single balanced up-conversion mixer
Inventor: SHIN HYEON SEOP
IPC: H03D7/12
Filed: 2001-04-25
Abstract: PURPOSE: A single balanced up- conversion mixer is provided to provide RF signal not including local oscillator signal by applying the IF signal from a balun to a differential amplifier circuit and the local oscillator signal to a current source. CONSTITUTION: The first balun(11) inputs the intermediate frequency signal and outputs the first and second local oscillating signals having 180° of phase difference. The current source(14) inputs the local oscillator signal. The differential amplifier circuit(13) is connected to the power supply through the first and second bias resistors(R1,R2) and differential amplifies the first and second local oscillating signals differentially. The second balun(12) is connected to the power supply through the first and second bias resistors and provides voltage difference between the first and second bias resistors with wireless frequency signal.