baber/WOPTO huggingface dataset:
Patent KR-20000002887-A (KR)
Title: Trench isolating forming method of semiconductor device
Inventor: NAM SHIN WOO
IPC: H01L21/76
Filed: 1998-06-24
Abstract: PURPOSE: A trench isolating forming method of a semiconductor device is provided to minimize or prevent the occurrence of a linear dent caused while forming a trench. CONSTITUTION: A trench isolating forming method of a semiconductor device comprises the steps of: forming a mask pattern defining a trench forming area, etching the 1st insulating film(104) formed on the semiconductor base plate(100); forming a trench(106), etching the semiconductor base plate(100); forming a heat oxide film(108) on the both sides and lower face of the trench(106); forming a trench linear(110) on the both sides of the 1st insulating film(104) and the heat oxide film(108); forming the 2nd insulating film(112) on the trench linear(110); evenly etching the 2nd insulating film(112) and the trench linear(110) till the surface of the 1st insulating film is exposed; removing by dry-type etching till the surface of the semiconductor base plate(100) is exposed.
Patent KR-20000007279-A (KR)
Title: Automatic-answering method of wireless terminal
Inventor: KIM SANG JUNG
IPC: H04M1/64
Filed: 1998-07-02
Abstract: PURPOSE: A method is provided to perform a function of automatic-answering if a user does not respond to a call message for more than a regular time. CONSTITUTION: The automatic-answering method of a wireless terminal comprises the steps of: examining whether the call message is received through a call channel; examining whether the automatic-answering function is set up when the call message is received; performing the automatic-answering action when the automatic-answering function is set up; performing the automatic-answering function after generating more than the regular number of call sounds when the automatic-answering function is not set up.
Patent KR-19990014011-A (KR)
Title: 액정표시장치
IPC: H05K1/11
Filed: 1998-07-21
Abstract: 본 발명에 의한 액정표시장치는, 1쌍의 기판과, 상기 1쌍의 기판사이에 끼워유지된 액정층과, 상기 1쌍의 기판중 절연기판의 외주에 장착된 액정층을 구동하는 구동회로와, 상기 구동회로에 전기적으로 결합되어 전기신호를 공급하는 다층가요성인쇄기판으로 이루어지고, 상기 다층가요성프인쇄기판은, 절연층과 교호로, 함께 적층되고, 리소그래피 및 에칭에 의해 형성된 배선패턴을 가진 적어도 3개의 금속층을 포함하고, 상기 적어도 3개의 금속층의 최외층은 상기 구동회로와 전기적으로 결합되는 단자를 제공한다.
Patent KR-20000010379-A (KR)
Title: Character input device for telecommunication phone
Inventor: LEE U HYEONG
IPC: H04B1/38
Filed: 1998-07-31
Abstract: PURPOSE: A character input device is provided to perform easy character input through simple dealing of keys. CONSTITUTION: The character input device has a character input key pad part(60) consisting of ten key pads on each of which numbers of 0 to 9 and consonant and vowel of Hangeul which are arranged at left, right, up and down sides of each number are marked. Four keys among the ten key pads have the direction converting function for converting initially selected consonant or vowel with respect to each key pad to another one of four characters. A character input is performed by at most twice key presses of a first input of any one key selected among the ten keys and a second input of any one key selected from four direction converting keys. Thus, character input is simplified by performing at most twice key inputs.
Patent KR-20000014796-A (KR)
Title: Method for generating servo control command using digital convolution
Inventor: YOON BYUNG UN
IPC: B25J9/16
Filed: 1998-08-25
Abstract: PURPOSE: A method for generating a servo control command using a digital convolution is provided to rapidly make a control command without a calculating step for a new formula even if a condition such as a distance, speed and time for moving a robot is changed. CONSTITUTION: A generating method has the steps of:generating the moving pass of a robot by a path planner(ST21); generating a speed command corresponding to the speed and the time for rotating a robot motor(ST22); generating the most suitable curve by calculating a load that applies to the speed command, the largest torque of the motor and the motor(ST23); generating the speed curve by digitally convoluting the speed command and an acceleration curve(ST24); and changing the speed curve to a servo command output to the motor. Therefore, the method increases productivity as reducing the operating time.
Patent KR-20000018529-A (KR)
Title: Magneto-optical disk and method for manufacturing the same
Inventor: HONG KI MYONG
IPC: G11B7/26
Filed: 1998-09-02
Abstract: PURPOSE: A magneto-optical disk and method for manufacturing the disk is provided, which performs an efficient data record using a low laser recording power. CONSTITUTION: A magneto-optical disk comprises: a first dielectric layer (2) to be formed on a substrate (1); a reproducing layer (3) to be formed on the first dielectric layer (2), which one material among N, P, S, Se, Br, Te, and I is added; a second dielectric layer (4) to be formed on the reproducing layer (3); a recording layer (5) to be formed on the second dielectric layer (4) and for printing an information recorded in a specific temperature to the reproducing layer (3); and a protecting layer (6) to be formed on the recording layer (5), wherein an amount of material added to the reproducing layer (3) is less than 5 atomic percents. Thereby, it is possible to have an effect in economy.
Patent KR-20000019648-A (KR)
Title: Air conditioner
Inventor: JEONG JAE SU
IPC: F24F1/00
Filed: 1998-09-14
Abstract: PURPOSE: An air conditioner is provided to easily install and repair an operation panel assembly. CONSTITUTION: An air conditioner is made up of: an outer casing constituting the appearance of an air conditioner; a discharge unit installed on the front upper area of the outer casing to vent heat-exchanged air to a room; a suction grill unit provided on the front lower area of the outer casing to introduce external air into a body; and a front plate placed between the discharge unit and the suction grill unit. An operation panel assembly includes a fan-shaped front panel(40) having plural operation buttons(32), a front and rear housing units(42,46) covering a circuit board(44) installed on the rear face of the front panel.
Patent KR-19990036643-A (KR)
Title: 제어된 피에이치를 갖는 전기전도성 중합체 층을 포함하는 조성물, 레지스트 구조물, 이의 제조방법
IPC: G03F7/004
Filed: 1998-09-15
Abstract: 본 발명은 
     표면과, 이러한 표면상에 있는 다수의 층을 포함하는, 제어된 pH를 갖는 물질의 전기전도성 중합체상 조성물, 이를 사용하여 제조된 구조물, 이의 제조방법에 관한 것으로서, 
     상기 다수의 층중 하나 이상은 에너지 민감성 물질로부터 형성되고, 
     하나 이상의 또 다른 층은 전기전도성 중합체로부터 제조되고, 
     상기 전기전도성 중합체는 산 작용기를 포함하고 소정의 pH를 갖는다. 
     pH는 전기전도성 중합체와 함께 혼합된 첨가제 또는 전기전도성 중합체의 구성요소에 의해 제어된다.  전기전도성 중합체는 바람직하게는 상부층이다.  이러한 구조물은 전자 빔으로부터 레지스트상에 미치는 전하 효과를 피하기 위해 마이크로엘렉트로닉스 제작(microelectronics fabrication)에서 리소그래피(lithography)에 유용하다.  조성물은 또한 정적 소산(static dissipation), 전자기적 간섭 차폐, 부식 보호, 전자도금 및 배선으로서의 응용에 유용하다.
Patent KR-20000020404-A (KR)
Title: Apparatus for editing television program
Inventor: KIM KWANG CHEOL
IPC: H04N21/475
Filed: 1998-09-21
Abstract: PURPOSE: An apparatus for editing a television program is provided to edit a television program rapidly and easily by moving a cursor rapidly and easily through plural cursor move key when moving a cursor of a television program edit mode. CONSTITUTION: A remote controller(20) is equipped with plural cursor move keys for operating cursor movements. A controller(9) moves a cursor by a movement amount corresponding to any of the cursor move keys based on a cursor movement amount data table with respect to a cursor movement key stored in a memory(9') if a program edit mode is set in a turn-on state of a television in case that any of the cursor move keys is operated through the remote controller(20), to thereby edit a television program rapidly and easily.
Patent KR-20000025201-A (KR)
Title: Lower mast structure of tower crane and combining device thereof
Inventor: CHO YONG GEUN
IPC: B66C23/32
Filed: 1998-10-09
Abstract: PURPOSE: A lower mast structure of a tower crane is provided to obtain a needed structure by changing an angle of reinforcing members according to various environmental conditions and load conditions by connecting or removing the reinforcing members between a upper and a lower horizontal members using the combining device. CONSTITUTION: A lower mast structure is welded 16 pieces of combining devices by in a upper and a lower horizontal members, each combining device installed by separating from both ends of the horizontal members a little, and a reinforcing member are combined with combining devices of the upper and the lower parts as media. The combining device comprises of: a rectangular hexahedral combining unit of horizontal member(31) welded in the horizontal member; a combining unit of reinforcing member(32) formed a screw mount in the inner circumference to screw with the reinforcing member with a bolt and a nut as a medium by protruding in the middle of the combining unit of horizontal member(31); and a combining unit of wire prop(33) formed a combining hole combined in the wire prop by protruding in the lower face of the combining unit of horizontal member(31).
Patent KR-20000026630-A (KR)
Title: Method for manufacturing capacitor of ferroelectric ram
Inventor: SEON JUN HYUB
IPC: H01L27/11
Filed: 1998-10-22
Abstract: PURPOSE: A method for manufacturing a capacitor of a ferroelectric RAM is provided to improve reliability of a downstream process by eliminating a residual etching substance and polymer using a mixture of NH4F and ethylene glycol without damaging an under layer. CONSTITUTION: In a method for manufacturing a capacitor of a ferroelectric RAM, an interfacial insulating layer(11) provided with a storing electrode contact is first formed on a substrate, then a bonding layer, a Pt layer for a lower electrode, and a ferroelectric layer are formed on the insulating layer in this order, after which a photoresist pattern is formed on the ferroelectric layer except for a portion where the storing electrode is supposed to be formed. Then the Pt layer and the ferroelectric layer are etched using the photoresist pattern as a mask, then the photoresist pattern is removed. A residual etching substance and polymer is rinsed using a mixture of NH4F and ethylene glycol.
Patent KR-20000032757-A (KR)
Title: Method of managing a plurality of agents and management function for network manager in telecommunication network
Inventor: PARK AE SUN
IPC: H04L12/24
Filed: 1998-11-17
Abstract: PURPOSE: A method of managing a plurality of agents and management function for network manager in telecommunication network is provided to operate regardless of the number of the object and function groups. CONSTITUTION: A method of managing a plurality of agent and management function for network manager in telecommunication network simultaneously initiates routing tables of network manager and the object at the same time. The network manager awaits for a receiving message, and analyzes the termination party of the received message. If the termination party is a user interface in the network, the network manager makes corresponding process by groups of management function, transmits a header after inserting SAP value within the process and await for a receiving message. But, if the termination party is the object, the network manager finds corresponding process, transmits the message to the process and awaits for a receiving message.
Patent KR-20000033150-A (KR)
Title: Apparatus for controlling solenoid valve of lpg vehicle
Inventor: LEE TAE HEON
IPC: F02M21/02
Filed: 1998-11-20
Abstract: PURPOSE: An apparatus for controlling a solenoid valve of an LPG vehicle is provided to completely burn residual LPG(liquefied petroleum gas) fuel in a fuel pipe by isolating a solenoid valve before ignition is off. CONSTITUTION: An LPG solenoid switch assembly(22) drives an LPG solenoid valve(26) for opening/closing a feed pipe of a gas cylinder when driving currents are supplied to a relay(24). An ECU(electronic control unit, 20) feeds an IGN(ignition signal), an ST(start signal) and an SRS(start relay control signal) for driving an ignition coil and an STM(start motor,30) to a relay motor(32). The IGN and the ST are activated when a contactor(18) in a key box(16) is contacted to an ICT(ignition contact) and an SCT(start contact). A relay switch(28) between a battery(12) and the relay motor is turned on if the relay motor is driven so that the STM(30) is operated by the output of a transmission switch(34).
Patent KR-19990045647-A (KR)
Title: 가변용량형 압축기용 제어밸브
IPC: F04B27/14
Filed: 1998-11-27
Abstract: 밸브개폐 정밀도를 향상시키기 위한 것으로, 벨로즈의 부하력 조정을 용이하게 수행할 수 있는 가변용량형 압축기용 제어밸브를 제공한다.  가변용량형 압축기의 토출압 영역과 크랭크실을 연결하는 냉매가스 통로에 배치된 밸브부재의 개도를 제어밸브 본체에 설치되어 있는 솔레노이드 하우징 내부의 솔레노이드의 여자작용에 의해 조정하며, 상기 크랭크실내의 사판의 경사각을 변화시켜 토출용량을 변화시키는 가변용량형 압축기용 제어밸브에 있어서, 상기 제어밸브 본체는 중앙에 솔레노이드, 일단부에 벨로즈를 배치한 압력감지실, 및 타단부에 상기 밸브부재를 배치한 밸브실을 설치하고 상기 솔레노이드의 플런저 일단에 스템 일단을 고정하고 그 스템의 타단에 상기 압력감지실에 배치한 벨로즈 스톱퍼가 탈착가능하게 접촉배치되며, 상기 플런저의 타단에 상기 밸브부재에 접촉되는 로드를 연결고정하여 구성된다.
Patent KR-20000034154-A (KR)
Title: Signal message routing method using default route in signaling network no. 7
Inventor: YOON JONG CHEOL
IPC: H04L12/24
Filed: 1998-11-27
Abstract: PURPOSE: A signal message routing method using a default route in signaling network No. 7 is provided to transmit a signal message from a relevant signal point to a signal point, which is not managed, thereby preventing the signal point located at the network terminal from causing overload in network management. CONSTITUTION: A TCAP (transmission control application part) transmits a signal message to a relevant SCCP (Signaling Connection Control Part), which is in idle state. The SCCP checks an SCCP message field of the transmitted signal message and a self-status table to identify whether a signal point for a relevant SCCP message routing exists. If the signal point exists, it is identified whether the relevant signal point is available. If available, it is identified whether a subsystem for the relevant SCCP message routing exists. If there is a subsystem, it is identified whether the subsystem is available. If available, the relevant SCCP transmits the relevant signal message to an MTP (Message Transfer Part) and returns to the idle state.
Patent KR-20000034533-A (KR)
Title: Pan for supporting wafers
Inventor: NAMGUNG DONG HUN
IPC: H01L21/68
Filed: 1998-11-30
Abstract: PURPOSE: A pan for supporting wafers is provided to prevent wafers from being broken or defected when a force from outside is applied on the wafers without notice. CONSTITUTION: A pan for supporting wafers includes a first part(21), a second part(22), and a linker(23). The first part is coupled with a part of a robot for wafer transfer. The second part(22) is coupled to the first part(21). Wafers are landed on the second part(22). The linker(23) is implemented between the first part(21) and the second part(22) so that the first and second part will be folded with a predetermined angle between them. The linker(23) further is formed on the joint of the first part(21) and the second part(22).
Patent KR-20000040114-A (KR)
Title: Thin film transistor liquid crystal display device
Inventor: HAN JONG GEUN
IPC: G02F1/1343
Filed: 1998-12-17
Abstract: PURPOSE: A thin film transistor liquid crystal display device is provided to increase on-current between a gate dielectric layer and an active layer. CONSTITUTION: A thin film transistor liquid crystal display device includes a dielectric substrate(10), a gate dielectric layer(30), an active layer(51), a source and drain(41,42), and an ohmic layer(52). On the dielectric substrate(10) a gate electrode(20A) is extended and formed. The gate dielectric layer(30) is formed on the front surface of the substrate. The active layer(51) is formed on the gate dielectric layer(30). The source and drain(41,42) are formed on the active layer while exposing the upper surface of the active layer. The ohmic layer(52) is applied between the source and drain electrodes and the active layer. The thin film transistor liquid crystal display device also includes a passivation layer(60), a pixel electrode(70), and an upper electrode(70A). Two channels are formed on the active layer when a voltage signal is applied on the gate line.
Patent KR-19990024209-A (KR)
Title: 야채 쓰레기 압축기
IPC: B09B1/00
Filed: 1998-12-21
Abstract: 본 발명은 야채 쓰레기 압축기에 관한 것으로서, 그 목적은 구동모터에 과부하가 걸리지 않도록 하는 것과, 야채 쓰레기의 함수율을 현저히 줄일 수 있도록 하는 것이다 
     본 발명은 투입된 야채 쓰레기를 소정의 크기로 분쇄하는 분쇄수단과, 원통형 하우징 내부에 제자리 회전되는 이송스크류가 설치되어 투입된 야채 쓰레기를 일정하게 압축 이송시키면서 포함된 수분을 탈수시키는 1차 및 2차 압축탈수수단과, 상기 1차 및 2차 압축탈수수단의 배출구쪽 하우징 내주면에 설치되어 압축되는 야채 쓰레기와 찌꺼기로부터 수분이 분리되도록 하는 타공망과, 상기 1차 및 2차 압축탈수수단 및 분쇄수단에 각기 연결되어 동력을 발생 및 전달해 주는 구동수단과, 상기 1차 및 2차 압축탈수수단의 타공망을 통해 분리된 수분을 집합시키는 수분 집합수단으로 이루어진 특징을 갖는다. 
     이상의 구성에 의한 본 발명을 적용하게 되면, 상기 야채 쓰레기 압축기는 이송스크류의 피치가 출구측으로 갈수록 점차 줄어들게 되므로 구동모터에 과부하가 걸리지 않게 되며, 이송스크류와 하우징의 직경이 출구쪽으로 갈수록 점차 줄어들고, 2차에 걸쳐 압축 탈수시키므로써, 쓰레기의 함수율이 현저히 저하된다.
Patent KR-20000042160-A (KR)
Title: Sound signal generating apparatus for adjusting an antenna
Inventor: RYU GIL OH
IPC: H01Q1/44
Filed: 1998-12-24
Abstract: PURPOSE: A sound signal generating apparatus for adjusting an antenna is provided to facilitate an antenna adjustment without viewing a TV screen by outputting a signal corresponding to the intensity of a received electric wave. CONSTITUTION: A speaker(30) is mounted on a location at which an antenna is mounted. A tuner(22) receives a desired electric wave through the antenna. A controller(24) detects the intensity of the electric wave received from the tuner(22) and controls an output of a sound signal generator(26) corresponding to the intensity of the detected electric wave. The sound signal generator(26) outputs to the speaker(30) a sound signal having a frequency corresponding to the intensity of the detected electric wave, to facilitate an antenna adjustment without viewing a TV screen.
Patent KR-20000042978-A (KR)
Title: Can for a secondary cell
Inventor: KIM JEONG GI
IPC: H01M10/02
Filed: 1998-12-28
Abstract: PURPOSE: A can for a secondary cell is provided to enhance the productivity and prevent the leakage of gas and electrolyte solution by engaging the lower can with the upper can in a screwed manner. CONSTITUTION: A case for receiving an electrode unit(12) is divided into an upper can(14a) and a lower can(14b). Female and male threads are formed in the upper can(14a) and the lower can(14b) in order for the upper and lower cans(14a, 14b) to be engaged to each other. A positive electrode tab(12a) and a negative electrode tab(12b) extended from the electrode unit(12) are protruded to external through holes(20) formed in the upper can(14a) or the lower can(14b) and the holes(20) are sealed with an insulating sealant. Electrolyte solution injecting holes(140) are formed in the upper and lower cans(14a, 14b).
Patent KR-20000045014-A (KR)
Title: Method for managing transmit path for synchronous device
Inventor: HA JEONG HO
IPC: H04B10/00
Filed: 1998-12-30
Abstract: PURPOSE: A method for managing a transmit path for a synchronous device is provided to manage a logic transmit path and a port according to requesting for managing channels internally, in the synchronous device. CONSTITUTION: A method for managing a transmit path for a synchronous device contains processes. The first process is generate an optical carrier and a synchronous device, to register a corresponded carrier on the synchronous device, and to generate passes of each short interoffice. The second process is to generate end points of each interval, including a physical and logic port information of both devices and the generated passes. The third process is to generate a real slot to the logic port, and to apply a line title to the transmit path, if the real slot is not existed. The fourth process is to store classes of the unit loaded on the end point information, and generates passes of the lower unit.
Patent KR-19990044023-A (KR)
Title: 폴리에틸렌 나프탈레이트의 결정화 방법
IPC: C08G63/88
Filed: 1996-08-07
Abstract: 에틸렌 카르보네이트 또는 프로필렌 카르보네이트와 같은 알킬렌 카르보네이트로 도포된 폴리에틸렌 나프탈레이트 펠렛은 미도포된 펠렛보다 더욱 신속하고 저온에서 결정화하고, 고체 상태 중합에 앞서 결정화법 동안 펠렛이 점착하는 경향을 감소시킨다.
Patent KR-19990044537-A (KR)
Title: 연결수단
IPC: F01N3/20
Filed: 1997-06-24
Abstract: 한쪽으로는 광물에 의하여 금속눌림쇠로부터 전기적 절연되는 적어도 하나의 전기적인 내부도선을 가지는 금속피막케이블로서 만들어진 전압도입선과 다른한쪽으로는 이쪽으로 전기적연결 그중에서도 특히 전기적으로 가열가능한 촉매컨버터간의 연결이 있고, 내부도선과 장치는 탈착가능한 단자연결을 통하여 서로 연결되고 이것의 한 부분이 장치상에 위치되며 다른부분은 전압도입선의 자유단부상에 제공되어진다.
Patent KR-19990067703-A (KR)
Title: 웨이브렛에 기초한 코딩 기술에 의해 생성된제로트리를 인코딩하기 위한 장치 및 방법
IPC: H04N19/94
Filed: 1996-10-25
Abstract: 웨이브렛에 기초한 코딩 기술에서 제로트리를 인코딩하는 장치(100, 900, 1000, 1100, 1200) 및 방법이다.  상기 방법은 제로트리를 선회하기 위한 제1 깊이 패턴을 사용, 즉, 부모로부터 자식 및 손자등에 까지, 트리의 각 가지가 다음 가지가 선히되기 전에 완전히 선회된다.  제1 깊이 트리 선회 패턴은 기호를 양자화 계수로 할당하는 것 뿐만 아니라 트리의 계수를 양자화 하도록 사용된다.  상기 방법은 각각의 노드에 대한 3 개의 기호: 제로트리 루트(ZEROTREE ROOT), 잠재값 제로트리 루트(VALUED ZEROTREE ROOT), 및 값(VALUE) 중 하나를 할당한다.  3 개의 기호 및 효과적인 트리 선회 패턴을 사용함으로써, 상기 방법은 실질적으로 종래 기술보다 제로트리를 인코딩하는데 더 효과적이다.  추가적으로, 본 개념은 또한 "벡터" 제로트리의 인코딩에 적용된다.
Patent KR-19990087154-A (KR)
IPC: H01M10/0525
Filed: 1997-02-20
Abstract: A method of fabricating electrochemical cells and batteries wherein the successive anode and cathode layers are separated by a polymeric electrolyte layer having a protuding polymer edge around its perimeter which reduces the likelihood of inadvertent contact between the anode and cathode current collectors is provided. The polymer edge functions as a non-conducting physical barrier positioned between adjacent current collectors. An apparatus for preparing electrochemical cells is also disclosed. <IMAGE>
Patent KR-19990087510-A (KR)
Title: 불화수소 조성물
IPC: C08K3/16
Filed: 1997-02-26
Abstract: 본 발명은 불화수소와 중합체로된 잘 섞인 혼합물인 조성물이 제공된다. 본 발명의 조성물은 순수 불화수소에 비하여 덜 유해하고, 따라서 저장, 운반 및 취급하기 쉽다. 나아가 불화 수소는 사용시 발명의 조성물로 부터 용이하게 회수될 수 있다.
Patent KR-20000010631-A (KR)
Title: Injection needle
Inventor: STEENGAARD KIM
IPC: A61M5/32
Filed: 1997-04-24
Abstract: PURPOSE: A needle stuck in a needle hub fitting onto an injection device is provided, which improves merits of G30 needle and/or gets over defects of it. CONSTITUTION: In this needle, length of injection part is shorter than 9mm; and the outer diameter and the diameter of the bore meets either of the following conditions, (a) the outer diameter is smaller than 0.320mm and the diameter of the bore is larger than 0.165mm, or (b) the outer diameter is smaller than 0.298mm and the diameter of the bore is larger than 0.133mm.
Patent KR-20000010696-A (KR)
Title: Suspension of sparingly water-soluble acidic drug
Inventor: NAITO MAYUMI
IPC: A61K9/00
Filed: 1997-05-01
Abstract: PURPOSE: A suspension of non-steroidal anti-inflammatory analgetic agent of a sparingly water-soluble acidic drug is provided to be safe for a long period and to be highly dissolvable. CONSTITUTION: A suspension of a sparingly water-soluble acidic drug especially, a non-steroidal anti-inflammatory analgetic agent, which is stable for a prolonged period of time and is highly dissolvable; and a process for simply and easily producing the suspension. This suspension has a pH value of 2 to 5 and comprises a sparingly water-soluble acidic drug whose average particle size ranges from 1 to 15 micrometers, a polyglycerol fatty acid ester, a water-soluble polyhydric alcohol and water, optionally, together with an inorganic powder having an average particle size of 1 to 15 micrometers This process is characterized by carrying out pulverization and dispersion of sparingly water-soluble acid drug, a polyglycerol fatty acid ester, a water-soluble polyhydricalcohol and water by means of a pulverizer comprising a main shaft adapted to rotate in a casing and a plurality of layshafts adapted to revolve in relationship interlocked with the rotation of the main shaft, each of the layshafts being fitted with a multiplicity of annular grinding media.