baber/WOPTO huggingface dataset:
Patent JP-S62297318-A (JP)
Title: Production of ultra-high-molecular-weight polyester
Inventor: NARISAWA HARUHIKO
IPC: C08G63/78
Filed: 1986-06-18
Abstract: PURPOSE:To obtain the titled high-quality polyester, by subjecting an aromatic dicarboxylic acid or an aromatic dicarboxylic acid alkyl ester and glycol to esterification reaction or ester interchange reaction and then polycondensation reaction in the presence of a specific catalyst in a heating medium. CONSTITUTION:An aromatic dicarboxylic acid or an aromatic dicarboxylic acid alkyl ester and glycol are subjected to esterification reaction or ester interchange reaction and then to polycondensation reaction (preferably at 235-250 deg.C) in a heating medium [preferably one or more compounds shown by formula I and formula II (A<1> and A<l> are phenyl or 5-20C cycloalkyl; A<2>-A<l-1> are phenylene or 5-20C cycloalkylene; R<1> and R<2> are H or 1-20C alkyl; l is 2-5; n and m are 0-5) in the presence of a tin compound to give the aimed polyester. The polycondensation reaction is preferably carried out while introducing an inert gas. EFFECT:High power for stirring, complicated device and much energy are not required.
Patent JP-H084695-A (JP)
Title: Manufacture of diffuser
Inventor: HARADA AKIRA
IPC: F04D29/44
Filed: 1994-06-23
Abstract: PURPOSE:To manufacture a diffuser in a short time and at a low cost by holding a vane formed with plural blades between a front plate and a back plate, jointing the blades to both plates into one unit and then removing the outer periphery of the vane. CONSTITUTION:A disc is made hollow and a mutually positional relationship between the annular outer periphery 5 and the inside when a diffuser is completed is kept to form a vane 2 formed with plural blades ranging over the outer periphery 5. A nickel brazing material is put on the brazing portion 4 as the joint of the vane 2, the vane 2 is held between a front plate 1 and a back plate 3 and the plural blades are jointed to both plates 1, 3 into one unit. The outer periphery 5 of the vane 2 is removed. In this way, the diffuser can be manufactured in a short time and at a low cost.
Patent JP-H09323515-A (JP)
Title: Tire air pressure estimating device
Inventor: OGUSU KOJI
IPC: B60C23/06
Filed: 1996-06-04
Abstract: PROBLEM TO BE SOLVED: To suitably prevent the deterioration of an estimation accuracy of a device which estimates indirectly the air pressure of a tire by a vibration componenent of the tire when a vehicle is running. SOLUTION: A wheel speed sensor 10 is mounted on each wheel of an automobile and a pulse signal output by the sensor 10 is taken by a signal processing device 20, which determines a wheel speed of each wheel by the pulse signal and extracts a resonance frequency with regard to the vibration of a tire by introducing a linear prospect model into the wheel speed signal or performing a FFT calculation. On the other hand, an outside air temperature sensor 40 mounted on the vehicle detects the temperatures of the tire and the road and the extracted resonance frequency is corrected based on the detected temperatures such that the variations caused by the detected temperatures are absorbed. The air pressure of the tire is estimated based on a linear relationship between the corrected resonance frequency and the air pressure of the tire.
Patent JP-S5843967-A (JP)
Title: Preparation of alkenylsuccinic anhydride
Inventor: MOURI MICHIHIRO
IPC: B01J21/00
Filed: 1981-09-10
Abstract: PURPOSE:To obtain the titled substance, economically, without corroding the preparation apparatus, and without producing tarry materials even under a high temperature condition, by carrying out the reaction of an olefin with maleic anhydride in the presence of boric acid or an organic boric acid ester. CONSTITUTION:The titled compound is obtained by reacting an olefin with maleic anhydride in the presence of boric acid or an organic boric acid ester. The boric acid is orthoboric acid or metaboric acid, and the organic boric acid ester is trimethyl borate, triethyl borate, etc. The amount of boric acid, etc. is 10- 5,000 ppm, preferably 20-1,000ppm, based on the reaction mixture. The olefin is preferably those having an average molecular weight of, e.g. <=5,000, usually  100- 4,000. The titled compound has many uses, e.g. it is useful as an additive  for lubricating oil and fuel oil, a plasticizer, a rust preventive, etc.
Patent JP-S5844501-A (JP)
Title: Circuit controlling method using pointer of measuring instrument
Inventor: KAKIZAWA SADAO
IPC: G05B1/01
Filed: 1981-09-09
Abstract: PURPOSE:To simplify the constitution of a control circuit and to shorten the time during which the output of the circuit is controlled to the set value, by providing a pair of separate photoelectric switches to an analog measuring instrument and using the shift of a pointer to an information source of the control circuit. CONSTITUTION:A certain level of input is applied to a circuit to give an automatic change to the control element at a comparatively high speed. When a pointer 9 rises up to a position P1, a signal P1 is transmitted from a measuring instrument. Then the gate of a distance counter opens, and the reference clock  starts counting. The signal P1 is also transmitted to a control element driving  circuit via the distance counter to retard the changing speed of the control element. Thus the pointer 9 rises up at a comparatively low linear speed. Furthermore the output rises up to exceed the set value P0, and the pointer 9 goes up  to a position P2. Thus a signal P2 is transmitted. As a result, the gate of the distance counter is closed to complete the counting of the reference clock.
Patent JP-S5933309-A (JP)
Title: Production of highly oriented polyacetylene
Inventor: EBISAWA FUMIHIRO
IPC: C08F138/02
Filed: 1982-08-16
Abstract: PURPOSE:To obtain highly oriented polyacetylene fiber nearly vertical to a base, by introducing a catalyst solution into straight pores provided in the direction nearly vertical to the base, diffusing acetylene gas from the upper surface into the pores and polymerizing the gas. CONSTITUTION:A smooth glass base coated with a catalyst solution [e.g., a solution of Ti(OC4H9)4-Al(C2H5)3 Ziegler catalyst system in n-hexane] is covered with a base 1 (e.g., polycarbonate film) having straight pores 2 provided in the direction nearly vertical to the base, whereby only the lower surface 4 of the base is impregnated with the catalyst solution and the straight pores 2 are filled with the catalyst solution. Then, acetylene gas is diffused from the upper surface 3 of the base 1 into the pores to polymerize the gas into long polyacetylene fiber 5. After removing the glass base, this fiber is washed to remove the catalyst and dried.
Patent JP-S5366140-A (JP)
Title: Parabolic antenna
Inventor: KATAYAMA KENJI
IPC: H01Q19/13
Filed: 1976-11-25
Abstract: PURPOSE:To lower production cost and obtain a high gain by using a rectilinear waveguide as a feed waveguide.
Patent JP-S6032179-A (JP)
Title: Recording disk reproducer
Inventor: MURAO KUNIHIKO
IPC: G11B25/04
Filed: 1983-08-03
Abstract: PURPOSE:To obtain a disk reproducer of a simple constitution with which a pickup means can be shared by the recording disks of two different shapes, by providing said pickup means so that it can freely move along a line connected between the center shafts of both disks. CONSTITUTION:The 1st turntable 4 holding a video recording disk 7 of the 1st type is set with a distance secured from the 2nd turntable 6 holding a compact recording disk 8 of the 2nd type. In this case, the center shafts of both turntables are set in parallel to each other. Then a pickup 9 which can be shared by both disks 7 and 8 is provided to that it can move freely along a line connected between the center shafts of both turntables.
Patent JP-H023129-A (JP)
Title: Developing device for master disk of optical disk
Inventor: NANBA SHOICHI
IPC: G11B7/26
Filed: 1988-06-09
Abstract: PURPOSE:To attain the complete elimination of dust and developer being adhered by providing a crosswise moving washing discharge opening besides a discharge opening discharging the developer and rinse. CONSTITUTION:Developer and rinse are discharged on an optical master disk 14 on an electric turn table 15 from a developer/rinse discharge opening 12 and the master disk is developing-processed. After that, the adhesive dust of the master disk 14 and the developer and so on which can not eliminated completely by the rinse are eliminated by the discharging of pressure washing from a washing discharge opening 18 which crosswise moves by an electric oscillating arm and of which tip top is nozzle shaped and good developing-processing is executed.
Patent JP-H10331151-A (JP)
Title: Method for improving soil
Inventor: NAKAMURA SADAO
IPC: E02D3/12
Filed: 1997-05-30
Abstract: PROBLEM TO BE SOLVED: To prevent discharge of extra sludge without deteriorating the quality of a columnar member by jetting hardener liquid and compressed air under high pressure from jet nozzles for the hardener liquid, provided at tip ends of a pair of arms attached to the lower end of a filling rod having a double pipe structure, and jet nozzles for the compressed air, surrounding the former nozzles. SOLUTION: A filling rod 1 in a double pipe structure composed of a pipe 8 for supplying hardener and a pipe 9 for supplying compressed air is supported by support columns, and agitating arms 6 are projected from an excavating head part 5 in the lower end part of the filling rod 1. Jet holes 7 are formed in the tip end parts of the arms 6, and the discharge port of jet nozzle 10 for the hardener liquid, which is communicated with the pipe 8, and jet nozzles 11 for the compressed air, which surrounds the nozzle 10 and which is communicated with the pipe 9 are provided.  The hardener liquid A by a volume ratio of 20% or less with respect to the volume of soil to be improved, and the compressed air B are jetted under high pressure from the nozzles 10, 11 of the filling rod 1 which are rotated and thrust into the soil to be improved, by a predetermined depth, and thereafter, the filling rod 1 is rotated and lifted up, thereby an improved columnar member is built up in the soil.
Patent JP-H0435546-A (JP)
Title: Interference wave eliminating system
Inventor: TSUJIMOTO ICHIRO
IPC: H04L27/22
Filed: 1990-05-31
Abstract: PURPOSE:To prevent disappearance of a desired signal wave and to eliminate a wide- band interference wave and the multipath distortion by giving a delay time difference to transmission symbols between diversity routes to transmit them from the transmission side and equalizing a synthesized signal, which is generated by synthetic diversity, by a matching filter and a discrimination feedback equalizer on the reception side. CONSTITUTION:This system consists of multipliers 101 and 102 a subtractor 104, AGC amplifiers 105, 108, and 109, correlators 106 and 107, a changeover switch 110, a matching filter 111, a discrimination feedback equalizer 112, a delay element 113, and transmiters 114 and 115. A prescribed time difference is given to first and second transmission signals and they are transmitted, and a first reception signal consisting of the first transmission signal and an interference wave and a second reception signal consisting of the second transmission signal and the interference wave are subjected to diversity synthesis so that phases of first and second interference waves are opposite, and the synthesized signal is equalized through an adaptive receiver consisting of the matching filter 111 and the discrimination feedback equalizer 112. Thus, disappearance of the desired signal wave due to interference wave elimination is prevented, and the wide-bank interference wave and the multipath distortion are eliminated.
Patent JP-S6031896-A (JP)
Title: Excretion treating method
Inventor: FUKASE TETSUROU
IPC: C02F9/00
Filed: 1983-08-03
Abstract: PURPOSE:To perform the treatment of excretion within a short retention time by preventing the formation of water separable sludge, by a method wherein a flocculant is added to excretion to perform flocculation treatment and, after solid- liquid separation is applied to the treated excretion, anaerobic treatment is applied to the separated liquid. CONSTITUTION:A flocculant such as an inorg. flocculant or an org. flocculant is added to excretion, to which pretreatment such as SS-removal or preliminary aeration cooresponding to stirring is applied, to perform flocculation treatment and flocs formed by flocculation are subjected to solid-liquid separation by using a solid-liquid separation means such as a pressure float tank or a mechanical dehydrator. Subsequently, when the separated liquid is introduced into an anaerobic tank and anaerobic treatment is performed under proper stirring while an anaerobic state is held, methane fermentation is generated to remove BOD within a short time. In the anearobic treatment, it is necessary to hold a predetermined amount of bacteria such as acid producing bacteria or methane producing bacteria in the anaerobic tank and, therefore, it is pref. to employ an anaerobic tank such as a sludge blanket type.
Patent JP-S5846047-A (JP)
Title: Preparation of alkylaminoalkyl acrylate or methacrylate
Inventor: KATSUMATA TSUTOMU
IPC: C07C219/08
Filed: 1981-09-11
Abstract: PURPOSE:To obtain the titled compound industrially and advantageously, by using metallic calcium or a calcium alcoholate as a catalyst in the ester interchange of a lower alkyl (meth)acrylate with an alkylaminoalcohol. CONSTITUTION:In preparing the aimed compound useful as a raw material for cationic high polymeric flocculants by the ester interchange of a lower alkyl acrylate or methacrylate, preferably methyl or ethyl ester, with an alkylaminoalcohol expressed by the formula[R1 and R2 are 1-8C alkyl, R1 is further H; (n) is an integer 1-4], inexpensive metallic calcium or a calcium alcoholate, e.g. a calcium alcoholate of a lower alcohol or the above-mentioned alcohol, having improved catalytic activity, and easily handleable with little side reactions is used as a catalyst to give the aimed compound advantageously.
Patent JP-H11341376-A (JP)
Title: Digital broadcasting receiver
Inventor: KITAURA KAZUO
IPC: H04N5/44
Filed: 1998-05-25
Abstract: PROBLEM TO BE SOLVED: To reduce component costs by eliminating the need for a crystal oscillator element that is for producing a reference clock of an OFDM (orthogonal frequency division multiplexing) demodulator circuit. SOLUTION: This receiver is provided with a PLL synthesizer 22 which produces a local oscillation signal, a reference signal generation circuit 17 which transmits a reference signal 171 to the synthesizer 22, an A/D conversion circuit 15 which performs A/D conversion of a 2nd intermediate frequency signal which is obtained by performing frequency conversion of a 1st intermediate frequency signal, an OFDM demodulator circuit 16 which demodulates transmitted digital data based on a digital signal transmitted from the circuit 15, and a multiplying circuit 10 which produces a reference clock 101 of the circuit 106 by multiplying the signal 171.
Patent JP-H05336767-A (JP)
Title: Controlling method for drive of ultrasonic motor
Inventor: NOJIMA TAKASHI
IPC: H02N2/00
Filed: 1992-06-03
Abstract: PURPOSE:To provide a method for driving an ultrasonic motor having a stable operation and a high driving efficiency in the motor in which an elastic vibration excited by a piezoelectric element is used as a driving force. CONSTITUTION:A signal proportional to a total machine arm current flowing to a piezoelectric element 2 is accurately detected by taking a difference between a voltage value to be obtained by a total current flowing to the element 2 and a voltage value to be obtained by a current flowing to capacitors A21 and B23 electrically equivalent to the element 2 to stabilize an operation of an ultrasonic motor and to improve its driving efficiency.
Patent JP-H09325085-A (JP)
Title: Method and device for measuring lens surface decentration
Inventor: MORITA NOBUHIRO
IPC: G01B11/24
Filed: 1996-06-05
Abstract: PROBLEM TO BE SOLVED: To measure decentering amount and decentering direction of a desired sample lens surface in a lens system comprising, while constituted with two or more lenses, an aspherical surface. SOLUTION: From a reference optical axis direction of a sample lens system, 1, an irradiation light flux of convergence characteristics or divergence characteristics is made incident on a desired sample lens surface, and a reflected light flux from the sample lens surface is, which imaging optical systems 11, 10, 9, 8, 7, 6 and 15 whose optical axis is substantially matched with the reference optical axis, focused on a photodetecting surface of an imaging device 19, as an image with respective near positions of a curvature center point of the sample lens surface or an near-axis curvature center point and a curvature center point of aspherical part positioned specified distance from an aspherical axis as an object point, and then a specified calculation is performed with the gravity center position coordinate of each image and the data of sample lens system,  so that decentering amount and decentering direction of a desired sample lens surface are obtained.
Patent JP-H08309442-A (JP)
Title: Tubular body working machine
Inventor: MURATA MAKOTO
IPC: B21D41/04
Filed: 1995-05-17
Abstract: PURPOSE: To obtain a tubular body working machine not using a mandrel, etc., capable of reducing with a simple equipment and not generate noise of hitting sound, etc., at this time. CONSTITUTION: A main driving part 5 consists of a holding means 2, rotary driving means 4 and traveling means 6. The end of a tubular body 1 to be worked is held by the holding means 2, the tubular body 1 to be worked as held is rotated around the axis by the rotary driving means 4 and traveled by the holding means 2. Further, the tubular body 1 to be worked is pressed/ reduced by a pair of working rollers 8 while holding at the axial direction common position from both sides, at this time the tubular body 1 to be worked is guided by a pair of guide rollers 28. Actions of the main driving part 5, a pair of working rollers 8 and pair of guiding rollers 28 are controlled by controller 50, by this control the tubular body 1 to be worked is reduced while rotating/traveling, thus, precise and quiet working is made possible.
Patent JP-H0435541-A (JP)
Title: Digital signal processing processor
Inventor: KIHARA KOICHI
IPC: H04L47/43
Filed: 1990-05-31
Abstract: PURPOSE:To improve the processing capability of a processor and to reduce the circuit forming area by not only outputting a provate address to a storage part but also stopping address update of a program memory at the time of storing transmission data or reception data having preliminarily set data length in the storage part. CONSTITUTION:When transmission data or reception data whose data length is set to a data length setting register 311 is stored in a storage part 321. The private address outputted from a private address generating part 322 is outputted to the storage part 321, and address update of a program memory 313 is stopped by an address change stop means 312a, and transmission or reception data in the storage part 321 is transferred. Consequently, a buffer memory for storage of serial packet data and its control circuit are unnecessary, and data is directly transmitted and received. Thus, the circuit forming area is reduced and the processing capability is improved.
Patent JP-H0196115-A (JP)
Title: Antiplaque oral composition
Inventor: ABUDARU GATSUFUAA
IPC: A61K8/21
Filed: 1988-06-09
Abstract: PURPOSE: To prepare the subject composition, comprising a vehicle composed of water and a humectant and a specific perfluoroalkyl surfactant in an effective amount as an antiplaque agent, having a high level of antiplaque effects without forming a barrier layer on a tooth surface and useful for preventing a bacterial plaque from forming. CONSTITUTION: This composition comprises a vehicle composed of about 3-30wt.% water and about 20-72wt.% humectant and about >=0.05wt.% perfluoroalkyl surfactant(PAS) represented by the formula [(x) is 3-8; (n) and (n') are each 2-4; M is H, an alkali metal or ammonium], preferably Zonyl FSP (R) in which (n) and (n') are each 2 and M is Li manufactured by E. I. du Pont de Nemours and Co., etc., as an antiplaque agent in the vehicle. The surfactant is contained in an amount of preferably about 0.1-2wt.% when used as a cleaning agent for oral cavity and about 0.5-5wt.% when used as a dentifrice. When the composition is used as a water-based cleaning agent for the oral cavity, about 5-25wt.% alcohol such as ethanol is present therein. The composition is useful as the PAS material so as not to form a holding artificial barrier layer permanently or long persistently on a tooth surface.
Patent JP-H0434553-A (JP)
Title: Photosensitive resin composition and pattern forming method using the composition
Inventor: ITO TOSHIO
IPC: G03F7/075
Filed: 1990-05-31
Abstract: PURPOSE:To eliminate the misregistration of patterns by charge up without largely changing a present electron beam lithography stage by forming the above compsn. of polysilane and a compd. which generates electron receptors by photoirradiation. CONSTITUTION:This photosensitive resin compsn. consists of the polysilane and the compd. which generates the electron receptors by photoirradiation. The polysilane is adequately formed of poly(methyl phenyl silane) or polysilane styrene. The compd. which generates the electron receptors by photoirradiation is adequately formed of any one salt selected from triaryl sulfonyl salts, etc., and the salt contg. any one anion selected from AsF6<->, PF6<->, SbF6<->, and BF4<-> as a paired anion. The electric resistance of the film drops and a good conductive film is obtd. if the film of this photosensitive resin compsn. is irradiated with light. The charge up of the multilayered films is effectively prevented when this photosensitive resin compsn. is used as an intermediate layer in electron beam lithography by a three-layered resist method.
Patent JP-S6122138-A (JP)
Title: Dehumidifying mat
Inventor: SAKAGUCHI MITSUMASA
IPC: F24F3/14
Filed: 1984-07-10
Abstract: PURPOSE:To prevent the deterioration of under-floor members caused by a high humidity and to improve a durability of the under-floor members by a method wherein moisture in the air is condensed by utilizing soil heat, the condensed water is drained into the soil to dehumidify the under-floor members. CONSTITUTION:A duct-type mat 1 is laid at a surface of the soil 2 of the under- floor of a dwelling so as to feed humidity air of the room 3 by a blowing circulation fan 4. Metallic fins 5 are made of material having a high thermal conductivity. The metallic fins 5 have their one end being pierced into the mat 1 and the other end being inserted into the soil 2. The air blowing circulation fan 4 takes humidity air in the room 3 and at the same time feeds back the air in the duct 1 into the room 3. Moisture in the humidity air fed into the mat 1 is condensed to the metallic fins 5, the condensed water is flowed down along the inner pipe of the metallic fins 5 in a direction indicated by an arrow and then immersed into the soil 2. A raised temperature of the metallic fins 5 caused by a condensation heat of the metallic fins 5 and the latent heat of air is discharged into the soil 2. Moisture in the soil 2 is not evaporated and diverged into the under-floor space due to the presence of the mat 1.