baber/WOPTO huggingface dataset:
Patent KR-960016201-B1 (KR)
Title: Cosmetic composite pigments coating with sap of acer mono max and cosmetic compositions containing the same
Inventor: YUN SUK-SHIN
Filed: 1993-07-14
Granted: 1996-12-06
Abstract: The cosmetic composite powder coating with sap of Acer mono Max is prepared by; (1) adding the sap of Acer mono Max or moisturizing agent of Acer mono Max into cosmetic pigments, stirring, filtering, and drying to obtain pigments powder coating with the sap of Acer mono Max; (2) adding oily components of 0.2-5.0 wt.% into distilled water or ethanol, adding the powder of (1) into the above mixture solution, stirring, and leaving it alone for 1 hour.;(3) adding a moisturizing agent into the solution of (2), stirring, leaving it alone for 1 hour., filtering and drying to obtain the final product.
Patent KR-960014176-B1 (KR)
Title: A locking device of a multi-signal processor system
Inventor: JUNG BYUNG-SUN
IPC: G06F15/16
Filed: 1993-08-06
Granted: 1996-10-14
Abstract: a lock processing signal generating counter(10) which generates a lock use signal and informs a processor of the timeout to finish the locking ; a buffer part(20) storing the processor name(ID) and the address of the processor performing the locking; and a system control part(30) cancelling the locking if the processor is abnormal or the timeout is generated, and informing the other processors.
Patent KR-0158142-B1 (KR)
Inventor: YU SEUNG-BUM
IPC: G01N7/00
Filed: 1993-09-16
Granted: 1999-05-01
Abstract: 자동차의 동작상태에 따라 이론적인 가상 산소량 감지신호를 산출하여 촉매장치와 산소량 감지장치의 열화상태를 판정할 수 있도록 하는 가상신호를 이용한 촉매장치와 산소량 감지장치의 열화 판정장치 및 그 방법을 제공하기 위한, 냉각 수온의 온도를 감지하여 해당하는 신호를 출력하는 냉각 수온 감지수단과; 스로틀 밸브의 개도정도를 감지하여 해당하는 신호를 출력하는 스로틀 밸브 개도 감지수단과; 엔진의 회전수를 감지하여 해당하는 신호를 출력하는 엔진 회전수 감지수단과; 배기관에서 배출되는 배기가스의 유해가스를 산화와 환원반응을 이용하여 무해가스로 정화하기 위한 촉매장치와; 상기 촉매장치 앞의 배기관에 장착되어 공연비의 피드백 제어동작을 위한 배기가스의 산소량을 감지하여 해당하는 신호를 출력하는 제1산소량 감지수단과; 상기 촉매장치 뒤의 배기관에 장착되어 촉매장치의 상태를 판단하기 위해 촉매장치를 통과한 배기가스 중에 포함되어 있는 산소량을 감지하여 해당하는 신호를 출력하는 제2산소량 감지수단; 자동차의 주행속도를 감지하여 주행속도에 해당하는 신호를 출력하는 차속 감지수단과; 아이들 상태를 판단하여 해당하는 신호를 출력하는 아이들 스위치와; 상기 감지수단과 아이들 스위치에서 인가되는 신호를 판독하고, 엔진의 최초 시동시의 엔진 냉각수 온도를 판단하여, 자동차의 상태가 설정된 설정조건을 설정된 횟수동안 만족하는지 판단하고, 자동차의 주행상태에 따라 이미 설정되는 있는 데이타를 이용하여 산출된 가상 산소량 감지신호와 제1산소량 감지수단의 신호와 제2산소량 감지수단의 신호를 이용하여 촉매장치와 제1산소량 감지수단의 동작상태를 판단하는 엔진 제어수단과; 상기 엔진 제어수단과 연결되어 촉매장치의 동작상태에 따라 출력되는 신호에 따라 동작되는 경고수단으로 이루어져 있다.
Patent KR-970006650-B1 (KR)
Inventor: MASDA DETSUO
IPC: G07F11/00
Filed: 1993-09-24
Granted: 1997-04-29
Abstract: 내용없음.
Patent KR-100297683-B1 (KR)
Title: Color display device
Inventor: KIM I GON
IPC: H01J11/20
Filed: 1993-11-30
Granted: 2001-10-24
Abstract: PURPOSE: A color display device is provided to simplify a configuration of an anode driving circuit. CONSTITUTION: A display panel(10) includes discharge cells at each crossing section of a plurality of anodes and cathodes. An anode driver(20,30) drives the plurality of anodes. A cathode driver(40,50) drives the plurality of cathode. A control signal generating circuit(60) generates and provides a scanning signal and generates a control signal. A preprocessing circuit(70) receives at least three color image data signals. The preprocessing circuit(70) selects a color image data signal suited to a fluorescent material batch structure in response to the control signal from the control signal generating circuit(60) and provides the selected color image data signal to the anode driver(20,30).
Patent KR-970011550-B1 (KR)
Title: Dc arc furnace and operation method
Inventor: NIX EDGAR
IPC: H05B7/11
Filed: 1993-12-03
Granted: 1997-07-11
Abstract: A description is given of a DC (direct current) arc furnace having a cathodic (negative) electrode held in the centre of the melting container and an anodic (positive) bottom electrode arrangement in the region of a lower container which is electrically conductive in the direction from the container wall to the melt, the current flowing in and out on one side via leads to a rectifier current supply set up at a distance beside the furnace. The lower container is divided into a plurality of quadrants which are connected to current supply leads, a connecting plate being provided in the region of each quadrant on the furnace wall. The current supply leads are guided in a horizontal plane to the container wall just below the arc. The current for the quadrants of the lower container which are adjacent to the rectifier current supplies is smaller than that of the current supply leads of the remaining quadrants. The distances between the connecting plates for the quadrant regions can be different. <IMAGE>
Patent KR-100312879-B1 (KR)
IPC: C02F11/12
Filed: 1993-12-03
Granted: 2002-02-19
Abstract: PCT No. PCT/CH93/00263 Sec. 371 Date Sep. 9, 1994 Sec. 102(e) Date Sep. 9, 1994 PCT Filed Nov. 19, 1993 PCT Pub. No. WO94/13382 PCT Pub. Date Jun. 23, 1994A transportable plant for processing a slurry by means of a chamber filter press designed as a membrane press contains at the same time a feed system for producing the slurry and diverse machinery for influencing temperature and pressure in the interior of the chamber filter press, such as a superheated steam unit, a hot air unit and a vacuum plant, which can be connected to the interior of the plant via switchable or controllable valves. The plant is suitable particularly for producing materials which are flowable or are in pieces, for example colorants, soup and drink powders, vegetable snacks and fruit snacks and diverse pharmaceuticals and for processing sewage sludge by filtration and subsequent drying or freeze-drying of the filter cake in the chamber filter press.
Patent KR-970000981-B1 (KR)
Title: Alcoholic liver-disease preventable-therapeutic composition containing effective components with aloin, aloe-emodine and aloe emodine-anthrone
Inventor: JUNG JIN-HO
IPC: A61K31/70
Filed: 1993-12-06
Granted: 1997-01-25
Abstract: The preventive remedy containing one or more compounds selected from aloin, aloe-emodin and aloe-emodin anthrone for an alcoholic crapulence inhibition or hepatic disease was prepared. Thus, 5.0 g of aloin, 2.5 g of aloe-emodin, 1.0 g of nitric thiamine, 0.5 g of riboflamine, 0.5 g of sorbitol, 20.0 g of mannitol, 30.0 g of hydroxypropylmethyl cellulose, 5.0 g of sorbic acid, 4.0 g of p-oxymethyl benzoate, 2.0 g of p-oxypropyl benzoate, 10.0 g of ethanol and menthol were dissolved in purified water to give an oral agent.
Patent KR-0149520-B1 (KR)
Title: Dry expansible sealant and baffle composition and product
Inventor: HANLEY JOHN L
IPC: C09K3/10
Filed: 1993-12-23
Granted: 1998-10-01
Abstract: A method of sealing and providing an acoustic baffle for a partially enclosed structure comprises: (a) combining: (i) an ethylene-alpha, beta ethylenically unsatd. carboxylic acid copolymer compsn.; (ii) a heat activated blowing agent; and (iii) a tackifier; (b) forming and shaping the compsn. into a dry, initially solid, non-tacky component; (c) introducing the component into the structure; and (d) subjecting the component to a predetermined high temp. so that the component expands, and (iii) causes the outer surface to become tacky and bond to the structure surface. Compsn. (i) has been partially neutralised with a metallic ion, and has a metal index of 0.2-14. Amts. of (i) and (ii) are 30-80 pts.wt. and 0.1-10 pts. The expanded component seals the area of the structure to form an acoustic baffle and which also prevents infiltration of moisture and air.
Patent KR-0132279-B1 (KR)
Inventor: OH JOON-NAM
IPC: F25B49/00
Filed: 1993-12-29
Granted: 1998-04-20
Abstract: 본 발명은 차량용 에어콘제어기를 위한 성능시험장치에 관한 것으로 종래에는 성능시험을 위해 에어콘을 가동할 시 운전자,탑승자들의 느낌을 일정한 시험절차에 따라 파악하여 기록하게 되는 바, 시험방법에 있어서 일정한 형태의 시험이 어렵고, 느낌을 정형화해서 이에 다른 정보를 수집 및 정리하는데 난점이 많았다. 본 발명은 전체기능을 통제하는 제어부, 정상상태에서 운전자가 달려야 할 운전속도, 운전시간, 경과시간을 표시해주며 현재차속과 운전차속(설정차속)의 비교를 위한 현재차속표시부,  일정시간 마다 부저음이 발생되어  운전자 및 동승자의 감정을 입력하도록 유도하며 스위치의 입력에 따른 출력전압발생을 하는 회로부, 본발명의 장치가  2대 이상 차내에 설치될 시 장치간의 정보교환을 위한 통신부로  구성되어 탑승자의 에어콘을 가동한 상태에서 느낌을 9가지로 세분화 하여 이를 스위치로 본 발명의 장치에 입력하게  한 후 데이터로거로 분석하게 함으로써 차량용 에어콘제어기의 최적 알고리즘의 개발도구로서 매우 유용한 효과를 갖는다.
Patent KR-0168873-B1 (KR)
Title: Plastic molded pieces having the appearance of a solid metallic piece
Inventor: QUESTEL ROGER
IPC: B29K105/16
Filed: 1991-10-03
Granted: 1999-03-20
Abstract: A utilitarian and/or decorative object and a method for forming the object fabricated mainly of a plastic material, such as polyester, having a metallic outer face which thereby imparts to this object the appearance and/or hand of a like object made entirely of metal. In this technique, a mixture of a liquid monomer, a curing agent therefor, a dispersion of metal particles and floatable particles are poured into a mold for forming the object. The metal particles are permitted to settle in the mold or the mold is centrifuged to cause the metal particles to migrate toward the outer or lower region of the piece and concentrate in this region before the monomer polymerizes and hardens to bind the particles. At the same time the floatable particles, such as glass or ceramic microspheres, rise to the inner or upper region of the piece and concentrate in this region before the monomer polymerizes and upon hardening of the monomer maintains the article in the desired shape without distortion from warping from uneven shrinkage. After removal from the mold, the outer face of the piece is polished and buffed to remove the fine plastic skin from the surface of the metal particles and to polish the exposed metal surface, whereby the resultant plastic piece simulates the appearance of a solid metal piece.
Patent KR-100245547-B1 (KR)
Inventor: WOOD DAVID G
IPC: B01J19/00
Filed: 1992-01-06
Granted: 2000-03-02
Abstract: 본 발명은 고형 현탁 슬러리를 가열 또는 냉각하는 장치로서 슬러리를 포함하는 용기(1)와, 현탁액을 순환시키고 유지하는 흡출관(2)의 흡출부(2A)안에 설치된 흡출수단을 포한한다. 일련으로 연결된 판형 열교환기(7,21,23,25,27,29)는 상기 흡출수단 아래 상기 흡출관의 원통부(2B)의 길이 대부분에 걸쳐 연장되어 있다. 특히 상기 판형 열교환기가 흡출관을 통한 압력강하를 증가시키지 않도록 흡출관의 내벽에 들어가도록 설치되거나 또는 열교환기가 차지하는 흡출관의 단면적 비율을 최소화 하도록 흡출관의 축을 따라 쌍으로 배열될 수 있다.
Patent RO-120995-B1 (RO)
Title: P-type mean voltage apparatus in metal housing
Inventor: VLASE SERGHIE
IPC: H02B1/00
Filed: 2001-02-08
Abstract: The invention relates to a P-type mean voltage apparatus in metal housing meant to be used for making station cells and network module units (RMU) to fit out the distribution stations, take-over sub-stations and transformation stations which are cable-supplied by industrial, radial or loop systems. According to the invention, the apparatus eliminates the constructive metal vat filled with sulphur hexafluoride gas, ensuring the free arc protection, insulation of the mean voltage part from the environment pollution and supply cable voltage check-up and consists of a multifunction commutation apparatus (12) in sulphur hexafluoride, with fixed connection, having two insulating housings (12 and 13) embedding the connection insulators (16) for coupling the supply cables (4) and the general bars (6), the capacitive dividers (18) for the voltage check-up of the supply cables (4), as well as a metal housing (19) to support and seal the mobile contacts (20) of the ground short-circuiting device (14) with commutation in sulphur hexafluoride, employed for free arc protection. The station cells can be assembled by both the provider and the client, thereby allowing a better flexibility in composing the distribution stations, various extensible distribution installations being manufacturable with said cells, while with mean voltage RMU there can be made non-extensible monoblock installations meant for transformation stations. The station cells and mean voltage RMU made thereby have the volume and technical characteristics which are competitive with the similar products, and by using the switch instead of the load break cut-out with fuses, the client's maintenance costs and the time of power coupling out are reduced.
Patent RO-122325-B1 (RO)
Title: Electrode with hybrid composite layer and process for preparing the same
Inventor: ION RODICA MARIANA
IPC: H01L21/288
Filed: 2004-10-11
Abstract: The invention relates to an electrode with hybrid composite layer comprising a metal support made of OLC45, having a first layer of nanostructurated alumina, an outer layer of zinc-tetraphenyl porphyrin and a transparent gold transparent counter-electrode. The preparation process consists of electrochemical deposition of alumina on OLC45 support: pulverizing a solution of zinc-tetraphenyl porphyrin in benzene, attaching the gold counter-electrode.
Patent RO-121568-B1 (RO)
Title: Homokinetic transmission of the rotation motion and motor torque
Inventor: VOICA CONSTANTIN
IPC: F16D3/30
Filed: 2006-06-09
Abstract: The invention relates to carrying out a complete assembly for homokinetic transmission of the rotation motion and motor torque, of the form 3 + 2n, a torque with fixed centres of gyration both in the driving shaft and in the fixed receiving shaft. According to the invention, the homokinetic transmission comprises an assembly (A) for transmitting the axial angular torque which receives the rotation motion from the central system of transmitting the motion and transmits it by means of an intermediary shaft (9) to an angular coupling assembly (B) for receiving and transmitting the motion to the load to be moved, by means of a fixed receiving shaft (16), irrespective of the angular values (alpha and beta) at the ends of the intermediary shaft (9).
Patent RO-126853-B1 (RO)
Title: Composite panel with phase-change materials for modular constructions
Inventor: DIACONU BOGDAN-MARIAN
IPC: E04C1/40
Filed: 2011-04-07
Abstract: The invention relates to a panel for modular constructions. The claimed panel comprises an outer functional layer (1) manufactured from one or more gypsum-board plates impregnated with a phase-change material of fatty acids mixture type, preferably capric and lauric acids having the melting and solidification points of 23...27°C , a functional layer (2) manufactured from one or more gypsum-board plates impregnated with a phase-change material of fatty acids mixture type, preferably, a mixture of capric and myristic acids, having the melting and solidification points of 18...22°C , a functional insulating layer (3) manufactured of expanded polystyrene and some outer finishing and protecting layers ( 4 and 5) manufactured of a finishing plaster coating, the panel having the following physical and chemical characteristics: a compressive strength of 2400 kPa, a coefficient of thermal conductivity of 11W/mK , an absorption degree of the phase-change material of 15...25% by mass.
Patent RO-127300-B1 (RO)
Title: Nanostructured beryllium-based alloy
Inventor: LUNGU PETRICĂ CRISTIAN
IPC: C23C14/35
Filed: 2011-11-23
Abstract: The invention relates to the preparation of nanostructured Be-C and Be-W alloys, to an experimental simultaneous deposition installation and to a process of deposition of thin composite films of said alloys, based on the thermionic vacuum arc method, by a process of physical deposition through ionized vapours, the alloy films being employed to prevent the retention of the fuel used for the fusion reaction in the nuclear reactors. According to the invention, the alloys consist of mixtures of pure phases of Be, W and C and at least one phase of BeW, in case of Be-W alloy, and one phase of BC, in case of the Be-C alloy, and are nanostructured, having a particle size in the range of 10 nm. According to the invention, the installation comprises two high-voltage D.C. generators (1 and 14), two bleeder resistors (2 and 13), two anodes (3 and 12), two focusing cylinders (4) of the Wehnelt type, an anode bar (5) made of W or C having a diameter of 10 mm and a length of 150 mm, a weighing nacelle (11) made of TiBefilled of Be powder (10), two circular cathodes (6 and 9) made of W wire having a diameter of 1 mm, a sample support (8) and two quartz micro-balances (16 and 17). The process claimed by the invention consists in heating the upper part of the W bar (5) and the Be powder (10) in the nacelle (11) by applying an alternating voltage to the W cathodes (6 and 9) followed by applying a high voltage between the W anode (5) and the corresponding cathode, until an electrical discharge controlled by the electron beam emitted by the cathode occurs, after which a similar operation is applied to the Be evaporator, the process parameters are so regulated that the deposition rates are 0.05 nm/s for W and 1 nm/s for Be, the total thickess of the deposited composite film being 200 nm.
Patent RO-127886-B1 (RO)
Title: Process for purification of sodium chloride for pharmaceutical use
Inventor: BLAJAN OLIMPIU
IPC: C01D3/16
Filed: 2011-12-22
Abstract: The invention relates to a process for obtaining pharmaceutical use sodium chloride and to an installation for carrying out the process. According to the invention, the process consists in dissolving while stirring the alimentary use sodium chloride having a sulphate ion content ranging from 0.09...0.34%, sulphate removing by barium chloride, discharging and repeatedly settling the suspension containing precipitated barium sulphate, collecting the supernatant and passing the solution through filtering columns filled with purified and activated quartz sand having a grain size of 0.5...1.5 mm which retains the barium sulphate and sodium silicate microparticles, then the solution is passed through filtering columns filled with cation exchange resin which retains the calcium, magnesium and possibly barium ions and then subjected to a crystallizing-drying stage, thereby resulting a sodium chloride with a content of up to 0.002% calcium and 0.0002% copper, 0.0001% iron, 0.005% potassium and 0.001% magnesium, respectively. The claimed installation consists of a reaction vessel () provided with stirring means, some settling vessels (), some intermediary collecting vessels (), some filtering columns () with quartz sand and some filtering columns with cation exchange resin (), respectively.
Patent RS-53944-B1 (RS)
Inventor: CORBINELLI RUBINO
IPC: H02K15/00
Filed: 2012-02-13
Abstract: Uređaj za poravnavanje žičanih provodnika (11a, 11b) koji se pružaju od elemenata (11) kalema umetnutih u proreze jezgra (10) električne dinamo mašine radi spajanja završetaka (11'a, 11'b) žičanih provodnika pomoću operacije zavarivanja koja se izvodi sredstvima (30) za zavarivanje obuhvata:- prvi element (41) koji ima više prolaza (40);- drugi element (42) koji ima više prolaza (40');- pri čemu su prvi element (41) i drugi element (42) montirani jedan pored drugog radi poravnavanja para prolaza (40) prvog elementa (41) sa prolazima (40') drugog elementa (42), gde svaki par poravnanih prolaza (40, 40') obrazuje jedan prolaz koji može da prihvati dva završna dela od bar dva žičana provodnika (11a, 11b);- sredstva (41', 42', 46) za relativno pomeranje prvog elementa (41) u odnosu na drugi element (42) po obimnom pravcu (C) jezgra da bi doveo do toga da stranice prolaza (40, 40') zahvataju i pomeraju završne delove (11a, 11b) žičanih provodnika po obimnom pravcu (C);- sredstva (61) za potiskivanje u radijalnom pravcu (R) jezgra nagnutih delova (I) žičanih provodnika da bi doveli do toga da se završni delovi (11a, 11b) žičanih provodnika koji se nalaze u jednom prolazu spregnu jedan sa drugim u radijalnom pravcu (R) i da se završni deo žičanog provodnika koji je najdalji u radijalnom pravcu (R) u jednom prolazu spregne sa stranicama jednog prolaza u radijalnom pravcu (R).Prijava sadrži još 14 patentnih zahteva.
Patent SA-113340296-B1 (SA)
Title: Production of caprolactam from adipic acid
Inventor: ERIC L DIAS
Filed: 2013-02-13
Abstract: Processes are disclosed for the conversion of adipic acid to caprolactam employing a chemocatalytic reaction in which an adipic acid substrate is reacted with ammonia and hydrogen, in the presence of particular heterogeneous catalysts and employing unique solvents. The present invention also enables the conversion of other adipic acid substrates, such as mono-esters of adipic acid, di-esters of adipic acid, mono-amides of adipic acid, di-amides of adipic acid, and salts thereof to caprolactam. Solvents useful in the process that do not react with ammonia are also disclosed. Catalyst supports are disclosed which catalyze the reaction of the substrate with ammonia in the absence of added metal. Metals on the catalyst supports comprise ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Ir), and/or platinum (Pt). Heterogeneous catalysts comprising ruthenium (Ru) and rhenium (Re) on titania and/or zirconia supports are also disclosed. Further, disclosed are products p
Patent SA-515360603-B1 (SA)
Title: Stabilized insulin-like growth factor polypeptides
Inventor: THOMAS HUBER
Filed: 2015-06-17
Abstract: This invention is in the field of IGF-1 modifications. In particular, it relates to modified IGF-1 polypeptides and modified IGF-1 precursor polypeptides wherein the cleavage of E-peptide is prevented. The invention also relates to the use of such polypeptides for treating muscle diseases and disorders.
Patent SA-515361151-B1 (SA)
Title: Heteroaryl compounds and uses thereof
Inventor: BARRAGUE MATTHIEU
Filed: 2015-09-15
Abstract: The present invention provides compounds useful as inhibitors of protein kinases, pharmaceutically acceptable compositions thereof, and methods of using the same.
Patent SA-515370069-B1 (SA)
Title: Fluidized bed reactor and method of producing granular polysilicon
Inventor: GERHARD FORSTPOINTNER
Filed: 2015-10-28
Abstract: The invention concerns a fluidized bed reactor for producing granular polysilicon, comprising a container with an inner reactor pipe for a fluidized bed with granular polysilicon, and a reactor base, a heating device for heating the fluidized bed in the inner reactor pipe, at least one opening in the reactor base for the supply of fluidizing gas and at least one opening in the reactor base for the supply of reaction gas, a device for the discharge of reactor waste gas, a supply device for the supply of silicon particles and a removal pipe for granular polysilicon, a Laval nozzle being mounted in front of at least one of the openings in the reactor base, outside the inner reactor pipe, in order to expand supercritically at least one mass flow supplied.
Patent SA-516370610-B1 (SA)
Title: Methods and apparatus for multiple user uplink
Inventor: GWENDOLYN DENISE BARRIAC
Filed: 2016-02-24
Abstract: Methods and apparatus for multiple user uplink are provided. In one aspect, a method of wireless communication is provided. The method includes transmitting (2105) a quality of service (QoS) message to a device. The QoS message includes a request for a transmission opportunity for sending uplink data to the device. The QoS message includes at least one of a sequence control field or a QoS control field. The method further includes receiving (2110) a clear to transmit (CTX) message in response to the QoS message. The method further includes transmitting (2115) data to the device in response to the CTX message. Fig. 7B
Patent SA-517381282-B1 (SA)
Title: Sulfur extended asphalt modified with crumb rubber
Inventor: IBNELWALEED A HUSSEIN
Filed: 2016-02-11
Abstract: This invention relates to asphalt compositions. The invention provides a sulfur rubber asphalt binder composition that includes a base asphalt having a softening point, elemental sulfur, and a crumb rubber material. The crumb rubber material is combined with the base asphalt and the elemental sulfur to create the sulfur rubber asphalt binder composition. The crumb rubber material is present in the sulfur rubber asphalt binder in an amount effective to increase the softening point as compared to the softening point of the base asphalt. Fig 1.
Patent SA-518392064-B1 (SA)
Title: Self-tuning sonic transmitters
Inventor: COOPER PAUL ANDREW
Filed: 2018-07-22
Abstract: A system for self-tuning sonic transmitters which transmits a plurality of frequencies into a downhole formation, then identifies which of the transmitted frequencies generates the best response from the formation. The system then uses the best frequency identified for subsequent logging of formation data until a subsequent tuning sequence is initiated. Figure 2.