baber/WOPTO huggingface dataset:
Patent JP-H01160939-A (JP)
Title: Production of alkali pyruvate
Inventor: ONO HIROSHI
IPC: C07C51/367
Filed: 1987-12-18
Abstract: PURPOSE:To obtain the title compound in high purity and yield, by hydrolyzing high-purity 2-chloropropionic acid in the presence of a specific amount of a strong alkali and a large excess of water and oxidizing the resultant aqueous solution of a high-purity alkali lactate with an O2-containing gas in the presence of an oxidation catalyst in the liquid phase. CONSTITUTION:High-purity 2-chloropropionic acid is hydrolyzed in the presence of water in an amount of >=0.5kg based on 1mol 2-chloropropionic acid and a strong alkali in an amount of 2 mol based on 1 mol 2-chloropropionic acid at 90-200 deg.C to provide an aqueous solution containing a high-purity alkali lactate. The resultant aqueous solution is then oxidized with an O2-containing gas in the presence of an oxidation catalyst (especially preferably platinum and/or palladium and an element selected from lead, tin, tellurium, indium and bismuth or a compound thereof) at 40-100 deg.C in the liquid phase to afford the aimed alkali pyruvate. Pyruvic acids are useful as a raw material for amino acids and medicines.
Patent JP-H11152086-A (JP)
Title: Monitor of propeller of water-jet-propelled vessel
Inventor: ISHIGAKI EIICHI
IPC: B63H11/01
Filed: 1997-11-20
Abstract: PROBLEM TO BE SOLVED: To provide a device that monitors the suction state of jet water in a water-jet-propelled vessel for efficient sailing. SOLUTION: The water-jet-propelled vessel is provided in its suction duct 4 for jet water with a submergible camera 8, which is electrically connected to a television arranged in a cockpit 9, and is also provided near the television with a control lever for the dust collector of a screen 7 arranged over a suction port 6. This arrangement allows direct visual observation of the suction state of water during sailing so that the dust collector may be immediately operated for dust collection resulting in efficient sailing.
Patent JP-H03181118-A (JP)
Title: Developing device for semiconductor wafer
Inventor: NISHIGAKI HISASHI
IPC: H01L21/30
Filed: 1989-12-11
Abstract: PURPOSE:To prevent developer or rinse liquid from adhering to the upside of a wafer or liquid from dropping irregularly from a supply nozzle by holding the semiconductor wafer with the face to be treated down in the developing treatment. CONSTITUTION:A chuck 36 sucks and holds horizontally a semiconductor 37 with the treatment face 37a down, and is driven to move vertically or rotate by driving mechanisms 31 and 34. A control body 23 is arranged in opposition under chuck 36, and a developer supply nozzle 26 and rinse liquid supply nozzle 27 are provided to pierce the control body and come out on the surface, and the developer is controlled properly by the temperature regulated water in space 23. The wafer 37 is driven to the specified interval to the upside of the control body 23, and is developed by the developer and the rinse liquid, but since the treatment face of the wafer 37 is downward, the liquid never turns behind the upside, and also the liquid can be prevented from dropping carelessly to the treatment face from the nozzle.
Patent JP-H01160260-A (JP)
Title: Picture display circuit
Inventor: SAGAWA TAKAHIRO
IPC: H04N5/18
Filed: 1987-12-17
Abstract: PURPOSE:To eliminate the dispersion of a DC component of a video signal and the need for brightness adjustment by applying pedestal clamp to R, G, B video signals at a vertical blanking period. CONSTITUTION:A timer 1 is active at the leading of a vertical synchronizing signal and deenergized at the end of the equalization period. The clamp period for its setting depends on a time till the charging of a capacitor 5 is finished through an output impedance with respect to a video signal and an ON- resistance of a clamp switch 4. A gate 2 is used at the clamp period to decrease the output to an 'L' level only when the synchronizing signal is at 'L' level. The pedestal level is kept to 0V till the next clamp signal by the operation of the said capacitor 6 after the end of clamping. Thus, it is not required separately to provide a voltage generating circuit by clamping the pedestal level to 0 level in this way.
Patent JP-H03179391-A (JP)
Title: Display device
Inventor: SHIMADA NAOYUKI
IPC: G09G3/36
Filed: 1989-12-07
Abstract: PURPOSE:To improve the yield by providing a couple of driving circuits which have plural shift registers and the same function and complementing the defect of a shift register of one driving circuit by the shift registers of the other driv ing circuit. CONSTITUTION:On an active substrate 21, an image display part 22, a couple of gate driving circuits 24a and 24b, and a couple of source driving circuits 25a and 25b are formed, and the couple of source driving circuits 25a and 25b are provided with the shift registers 26a - 26d, and 33a - 33d which are put in partial charge and desighnate in order the respective corresponding columns of the image display part 22. Then if the shift registers 26a, 33c, etc., of the source driving circuits 25a and 25b are defective, the wirings of corresponding connection parts are fused to disconnect them from the image display part 22 and then the source driving parts 25a and 25b complement the defective parts mutually. Similarly, this can be applied to the gate driving circuits 24a and 24b. Consequently, the yield can be improved.
Patent JP-H11154396-A (JP)
Title: Internal vpp generating circuit
Inventor: OKAMOTO TOSHIJI
IPC: G11C16/06
Filed: 1997-11-20
Abstract: PROBLEM TO BE SOLVED: To reduce fluctuation of internal Vpp generated by an internal Vpp generating circuit. SOLUTION: This circuit is constituted with three charge pump circuits 111, 121, 131, three oscillation circuits 112, 122, 132, three clock buffer circuits 113, 123, 133, and three CP output control circuits 114, 124, 134. Reference voltage is generated by a reference voltage generating circuit, and supplied to an internal Vpp generating circuit. Internal Vpp detecting voltage (i.e., voltage performing OSC control operation) of three CP output control circuits 114, 124, 134 are designed so as to be different respectively. When internal Vpp detecting voltage of each three CP output control circuit 114, 124, 134 is made VRn (n=1-3), relation between them is made VR1<VR2<VR3, and VR3 is set so as to be equal to voltage of internal Vpp which is desired to perform desired control.
Patent JP-H06237929-A (JP)
Title: Device and method for measuring elasticity of artery by ultrasonic echography
Inventor: BONNEFOUS ODILE
IPC: G01S15/89
Filed: 1993-12-20
Abstract: PURPOSE: To make it possible to conduct a highly accurate measurement for the flexibility of the artery by individually measuring a flow velocity of a momentary blood stream, a momentary radial fluctuations and an averaged radius along a plurality of stimulation lines, and calculating the flexibility of the artery based on the collected data. CONSTITUTION: This measuring device has a piezo-electric transducer 11 connected to a transmitting/receiving means 12, and an ultrasonic wave scanning beam is generated to the artery 2. A signal reflected from the artery 2 through the transducer 11 is received, and is outputted as an echographic signal into a first and second measuring units 21, 25 and another first and second measuring units 31, 35. By obtaining the flow velocity Q(t), Q'(t) of momentary bloodstream of the artery, the momentary radial fluctuations Δr(t), Δr'(t) and the averaged radius (ro) along a first stimulation line (A) and second stimulation line (B) positioned in the distance (e) (mm) from the same line (A), the flexibility of the artery, i.e., an adaptability and the inner pressure are determined.
Patent JP-2000149618-A (JP)
Title: Lighting fixture for vehicle
Inventor: SAKURAI NOBUYOSHI
IPC: F21S8/10
Filed: 1998-11-11
Abstract: PROBLEM TO BE SOLVED: To improve the welding quality of a lens, whose outer and inner lenses are welded, by preventing positional deviation when the lenses are welded and by realizing uniform welding at a plurality of welding parts. SOLUTION: In a lighting fixture for a vehicle which has a lens 120 constituted by welding an outer lens 121 and an inner lens 122, the inner lens 122 has a plurality of welding surfaces 129, and welding legs 126 projected from the inner surface of the outer lens 121 are welded to the welding surfaces 129. The welding surfaces 129 of the inner lens 122 are positioned on the same, plane, when the inner lens and outer lens are overlappedly placed with each other, the welding surfaces 129 of the inner lens 122 are capable of being located approximately on the same plane in a horizontal direction, the positional deviation between the inner leans 122 and the outer lens 121 is prevented, and each welding surface 129 is supplied with ultrasonic wave evenly. Thereby state of welding of each welding surface 129 becomes uniform, and a high quality welding structure is obtained.
Patent JP-H07176038-A (JP)
Title: Magnetic recording medium
Inventor: GOTO SHIGETO
IPC: G11B5/716
Filed: 1993-12-20
Abstract: PURPOSE:To ensure satisfactory electrical characteristics by forming a magnetic layer having a specified thickness or below and contg. electric conductive fine powder having a specified average particle diameter range as the uppermost layer and a magnetic layer contg. magnetic powder having below a prescribed average major axis size as at least one layer other than the uppermost layer. CONSTITUTION:A magnetic layer having <=1.0mum thickness and contg. electrical conductive fine powder having 45-500nm, preferably 65-300nm, especially preferably 85-200nm average particle diameter is formed as the uppermost layer and a magnetic layer contg. magnetic powder having <250nm average major axis size or a nonmagnetic layer contg. nonmagnetic powder having <250nm average particle diameter is formed as at least one layer other than the uppermost layer. The electrical conductive fine powder is carbon black or powder of SnO2, silver, silver oxide, silver nitrate, an org. compd. of silver, copper, etc. The resulting magnetic recording medium has satisfactory surface smoothness, electromagnetic transducing characteristics, dropout and running performance at a low temp.
Patent JP-H08180136-A (JP)
Title: Character recognizing method
Inventor: HATA RYOICHI
IPC: G06K9/62
Filed: 1994-12-22
Abstract: PURPOSE: To obtain an accurate recognition result after the pecularity of an uniquely written character by converting segmented handwritten characters into directional vectors according to a directional vector area diagram after area correction when the inputted handwritten character is uniquely written. CONSTITUTION: When the handwritten character is inputted from a character input means 3, a character recognizing means 23 operates to segment the handwritten character, thereby obtaining vector-converted segments. They are converted into directional vectors on the basis of the directional vector area diagram and set data are extracted. The set data are collated with a vector dictionary 15 to perform character recognition. When rerecognition processing is not indicated, the new mean value of angles of rotation is calculated from the mean value of angles of rotation of the directional vector area diagram which is used this time and directional vector area diagrams which were used up to the last time, and the directional vector area diagram is rotated up to the calculated angle of rotation.
Patent JP-H03181554-A (JP)
Title: Resin composition
Inventor: ABE HIROOMI
IPC: C08L71/12
Filed: 1989-12-08
Abstract: PURPOSE:To obtain a resin composition having improved compatibility and excellent mechanical properties, especially impact strength, by melting an kneading a polyphenylene ether resin, an unsaturated aliphatic hydrocarbon and a polyolefin resin. CONSTITUTION:The objective resin composition is produced by melting and kneading (A) a polyphenylene ether resin, preferably poly(2,6-dimethyl-1,4- phenylene) ether with (B) a 2-35C aliphatic hydrocarbon containing one or more carbon-carbon double bond or carbon-carbon triple bond and free from polar group, preferably an olefin of formula I (n is 2-30), more preferably an alpha-olefin of formula II and (C) a polyolefin resin, preferably crystalline propylene homopolymer or crystalline porpylene-ethylene copolymer. The weight ratio of A:B is 1:99 to 99:1 and the amount of the component C is 0.1-50 pts.wt. per 100 pts.wt. of the component A.
Patent JP-H08225481-A (JP)
Title: Production of aldehydes
Inventor: UEDA AKIO
IPC: C07B61/00
Filed: 1995-12-08
Abstract: PURPOSE: To provide an efficient method for producing aldehydes capable of enhancing recovery efficiency of unreacted olefin and the reaction rate in hydroformylation in a method for recovering unreacted olefin in the liquid reaction mixture of hydroformylation through a gas-liquid contact tower. CONSTITUTION: This method comprises the following processes: a liquid mixture containing unreacted olefin and aldehyde product contained in a runoff material from a reaction region of hydroformylation is heated; subsequently the liquid mixture is introduced into a gas-liquid contact region to be brought into contact with carbon monoxide and hydrogen in counter-current flow to separate and recover the unreacted olefin from the liquid mixture; and the recovered unreacted olefin is introduced into a reaction region of hydroformylation together with carbon monoxide and hydrogen.
Patent JP-H10155559-A (JP)
Title: Wiring duct cover with rotary cap for desk or the like
Inventor: KAGAYAMA TAKESHI
IPC: A47B21/00
Filed: 1996-11-29
Abstract: PROBLEM TO BE SOLVED: To provide a wiring duct cover with which the state of closing the cord inserting port of the wiring duct cover and the state of opening the cord inserting port can be provided only by rotating a cap, further, body the states can be surely maintained and there is no danger to lose the cap. SOLUTION: A wiring duct cover 6 with rotary cap is fitted to a wiring duct port opened at the rear edge part of top board for desk or the like. In that case, a cord inserting port 9 is formed at any suitable position on a surface plate 8 of the wiring duct cover 6, the top end part of a supporting arm 11 extended from the rear side of rotary cap 10 formed for opening/closing the cord inserting port is supported on the lower surface of surface plate, and the supporting arm is elastically held in the state of closing the cord inserting port with the rotary cap 10 and the state of opening the cord inserting port through rotation at 180 deg. and storing the rotary cap 10 along with the lower surface of surface plate.
Patent JP-H11142090-A (JP)
Title: Parallel integral type heat-exchanger
Inventor: NISHISHITA KUNIHIKO
IPC: F28D1/04
Filed: 1997-11-06
Abstract: PROBLEM TO BE SOLVED: To prevent a fatigue rupture of a tank due to the difference of using temperatures of respective heat-exchangers from arising for a parallel integral type heat-exchanger wherein a plurality of heat-exchangers are integrally combined while making the heat-exchanging parts confront with each other, and a side plate is bridged between the adjacent heat-exchanging parts. SOLUTION: A heat-exchanging part is constituted by laminating a fin and a tube, and a capacitor 5 equipped with tanks 2a, 2b, 6a, 6b which are provided in the laminated direction of the tube, and a radiator 9 are arranged in such a manner that the heat-exchanging parts of them may be confronted with each other, and a side plate 20 is bridged at the end parts in the laminated direction of respective heat-exchanging parts, and bonded. The side plate 20 is kept away from the capacitor 5 and at least one of the tanks 2a, 2b, 6a, 6b of the radiator 9. By this method, the restraint of a free thermal expansion of the side plate 20 and the tube can be lightened.
Patent JP-H08173504-A (JP)
Title: Acupuncture needle
Inventor: KAWAGUCHI MASATOSHI
IPC: A61H39/08
Filed: 1994-12-22
Abstract: PURPOSE: To provide a release stop structure between a needle body and a needle handle capable of being manufactured in an inexpensive machining method. CONSTITUTION: This acupuncture needle is constituted of a metal (stainless in particular) needle body 1 having a needle tip section on the tip side and a needle handle 2 covering the base end side and made of a conducting resin. A meandering bent section 1b is formed by press machining on the base end side of the needle body 1 prior to insert molding, the needle body 1 after press machining is set in an injection molding mold, and the needle handle 2 is molded with a resin to cover the bent section 1b.
Patent JP-2001132615-A (JP)
Title: Propeller type windmill for power generation
Inventor: MURAKAMI MITSUNORI
IPC: F03D7/02
Filed: 1999-11-11
Abstract: PROBLEM TO BE SOLVED: To improve performance so as to generate power even in a low speed region. SOLUTION: A plural number of windmill blades 3 are provided for each of constant angles through a rotor 1 from a horizontal rotation axis 2 within a surface orthogonal with the horizontal rotation axis 2, and a head end auxiliary blade 6 built in free to project at and retreat respectively toward a head end and an auxiliary blade projecting and retreating device 8 to increase blade overall length by projecting this head end auxiliary blade 6 to the head end side are provided in a blade main body 4 of each of the windmill blade 3.
Patent JP-H05160207-A (JP)
Title: Aligner for manufacturing tape carrier for tab
Inventor: SAEKI MASAHIKO
IPC: H01L21/30
Filed: 1991-12-04
Abstract: PURPOSE:To provide an improved aligner for a TAB which removes a shortage of the partial emitting amount of ultraviolet rays towards the exposing plane where the ultraviolet rays are emitted on the photosensitive resist plane coating metallic foils to print wiring patterns, and which always exposes appropriately to obtain favorable wiring patterns. CONSTITUTION:In an aliner for a TAB in which lights of an ultraviolet lamp are emitted on the plane of photosensitive resist 10 coating 2 metallic foils 9 through a photomask to print wiring patterns, a reflection plate 11 for changing a light path of a part of the emitted lights is arranged in the middle of the light path of the ultraviolet rays.
Patent JP-H01161883-A (JP)
Title: Gas laser oscillator
Inventor: NAKAZAWA YOSHIO
IPC: H01S3/134
Filed: 1987-12-18
Abstract: PURPOSE:To prevent false control of output, by constituting a photo-sensing part by using a photoelectric transducer to which a resistor having a temperature coefficient to compensate the temperature change is connected parallel. CONSTITUTION:Laser light output from an internal mirror type air-cooling argon laser tube 1 enters a beam splitter 2, by which the light is divided into laser output light 3 and laser reflected light 4 turning to a signal for light feedback. A photo sensing part 7 is constituted of a photodiode 5 and a load resistor 6 having a high positive temperature coefficient, which resistor is connected parallel to said diode. Output terminal voltage of the load resistor 6 is fed back to an output controlling part. By selecting the coefficient of the load resistor so as to compensate temperature characteristics of the photoelectric transducer, the detected signal can be kept constant, even if the temperature rises and the output of photodiode decreases, because the resistance value of the resistor simultaneously increases.
Patent JP-2000152188-A (JP)
Title: Signal processor
Inventor: TOKIZAWA HARUYUKI
IPC: G11B20/02
Filed: 1998-11-11
Abstract: PROBLEM TO BE SOLVED: To realize reproduce at a double speed without imposing a load on a program even in the case of a sampling frequency whose division frequency is not an integer. SOLUTION: Output data of an A/D converter circuit 10 are written in a buffer circuit 11 based on a write clock, where a written clock number is counted. In response to the count result, a read number is set, and the buffer circuit 11 reads data according to a read clock and a read clock number is counted.
Patent JP-H03182874-A (JP)
Title: Motor drive device in electrically driven power steering device
Inventor: OKAMURA AKIO
IPC: B62D101/00
Filed: 1989-12-11
Abstract: PURPOSE:To prevent the occurrence of current oscillation by employing 4 motor switching elements which are connected in an H-bridge pattern, controlling 2 pieces of the switching element of one arm in response to current deviation, and concurrently controlling 2 pieces of the switching elements of the other arm in response to polarity. CONSTITUTION:In a circuit wherein 2 each of switching element (FET) 1UL and 1LL; 1UR and 1LR are connected to each upper and each lower position of the right and left arms of an H-bridge in which motors 10 are connected to each middle point of the respective arms, the respective elements 1UL and 1LL and the respective elements 1UR and 1LR are controlled so as to be turned on and/or off by a left side drive arm 17 and the right side driven arm 18 respectively based on control signals from a drive logic circuit 16. Namely, the deviation Id between the current command value 1D and motor current IM is made 12 to be an absolute value, and the polarity of the deviation is concurrently judged 15. The control signal is then outputted based on the PWM pulse and the result of polarity judgement obtained through the comparison 14 of a magnitude signal with a chopping wave signal.
Patent JP-H01162519-A (JP)
Title: Lead shaping device
Inventor: WATANABE KENJI
IPC: B21D3/10
Filed: 1987-12-17
Abstract: PURPOSE:To arrange all mounted sides on the points of a plurality of leads to prescribed positions by mounting a package of a semiconductor device having a plurality of irregular projected leads on a supporting base, forcing down a pressure member from an upper part until the point parts of a plurality of leads take a specified angle by the contact pieces of the pressure member, then, raising the pressure member. CONSTITUTION:A package 3 of a semiconductor device 2 provided with a plurality of leads such as normal leads 4a and irregularly deformed leads 4b, etc., is mounted on a supporting base 1. Then, the pressure member 5 is forced by the contact piece 5a of its point part down to a position where an angle theta2 formed by mounted sides 4c of the point parts of all the leads 4 and a reference surface P becomes larger than a prescribed angle and kept for a prescribed time, then the pressure member 5 is raised to release the compression of the point of the lead 4 by the contact piece 5a. The irregularly deformed leads 4b are deformed plastically at the root of the package 3 and the point parts are arranged with the regular leads 4a to the reference surface P to improve the flatness of the leads 4.
Patent JP-H05280658-A (JP)
Title: Electronic control apparatus for switching multiple loads
IPC: H02J1/00
Filed: 1992-11-30
Abstract: PURPOSE: To provide an electronic control apparatus for switching multiple electrical loads, especially electromagnetic valves of a load-switching mechanism according to positions of contact points of various information switching devices. CONSTITUTION: This electronic control apparatus 13 comprises a central unit 15, having a plurality of load lines 17 leading to a load and a plurality of electronic switches 1. The load lines are connected to a power source 14 via the electronic switches 1 respectively. The electronic switches 1 can be switched by logical signals respectively and have output terminals 5 of logical status signals. The logical status signal indicates an open load when the switch is open, and a short-circuit load is indicated when the switch is closed. When the switch 1 is open and then short-circuited, the logical status signal indicates an, open load. An information line 18 is connected to the power source via the electronic switch 1 as the load lines 17 and comes out from the central unit. The information line 18 is connected to at least one load line via information switches 19 respectively.