baber/WOPTO huggingface dataset:
Patent JP-S63315530-A (JP)
Title: Production of optical fiber preform
Inventor: KAWAKAMI NOBORU
IPC: C03B37/018
Filed: 1987-06-15
Abstract: PURPOSE:To enable reduction in absorption loss of OH groups in of an optical fiber, by passing a dehydrating agent though a quartz tube in a dehydrating and transparent vitrifying step and following collapsing step of a porous SiO2 deposit layer deposited in the quartz tube in producing an optical fiber preform by a modified chemical vapor deposition method (MCVD). CONSTITUTION:An optical fiber preform is produced by the following steps (a)-(d). That is the steps of (a) depositing metallic oxide fine particles containing SiO2 on the inner wall of a quartz tube to form a porous deposit layer, (b) passing a dehydrating agent (e.g. SOCl2) through the quartz tube having the porous deposit layer to dehydrate the above-mentioned porous deposit layer, (c) transparently vitrifying the afore-mentioned porous deposit layer while passing the dehydrating agent through the quartz tube and (d) collapsing the quartz tube in a state filled with the dehydrating agent therein.
Patent JP-S5575572-A (JP)
Title: Ignition device diagnosing probe
Inventor: KATOU TAKAYUKI
IPC: F02P17/12
Filed: 1978-11-29
Abstract: PURPOSE:To convert the high voltage to be applied to a distributor and a discharger into electric output signal and to compare the value represented by the output signal with a fixed reference value by means of an electric means for securely diagnosing the abnormality of the distributor and discharger. CONSTITUTION:A diagnosing probe DP consists of a case body 1, conductive metal connectors 2 and 3, high voltage withstand mono-directional first and second electric elements 4 and 5, and a high-insulation continuity cable 6 for connecting an external measuring instrument. A plug cord PC is fitted on the connector 2, and an ignition plug PL on the connector 3. The abnormality of a distributor and discharger can be diagnosed by measuring the voltage led out of the cable 6.
Patent JP-H05319928-A (JP)
Title: Production of highly functional carbon/ceramic composite material
Inventor: OZAKI YOSHIHARU
IPC: C04B41/82
Filed: 1992-05-15
Abstract: PURPOSE:To obtain a highly functional carbon/ceramic composite material having a homogeneous and dense ceramic coating film formed on the surface of a carbonaceous material or the inner surface of the pores of the material. CONSTITUTION:A polymer sol produced by hydrolyzing a metal alkoxide solution is impregnated under reduced or positive pressure into a porous carbonaceous material having an average pore diameter of 50-200mum and a porosity of 50-70% and the polymer sol is converted into an oxide and/or a carbide by heat-treating in a non-oxidizing atmosphere at >=500 deg.C. The metal of the metal alkoxide is preferably Ti, Al, Zr, Si, B or Mg.
Patent JP-S5775587-A (JP)
Title: Gear shifting control system for ac motor
Inventor: ITOU KOUJI
IPC: H02P23/00
Filed: 1980-10-23
Abstract: PURPOSE:To smoothly shift a gear of an AC motor by maintaining the exciting current of the stator of the motor at the value at stopping time immediately before shifting during the gear shifting, thereby stopping the rotation of the motor at the gear shifting time. CONSTITUTION:This system has an AC motor 11, gear trains 12, 13 coupled with the output shaft 11a of the motor and having changing gears, a pulse signal generator 14 for producing a pulse signal upon rotation of the shaft 14a of the gear trains 15, 16 different from the output shaft, and an AC motor drive controller which receives rotating speed command and receiving a feedback signal of the pulse train from the generator 14 together with the rotating amount and rotating speed  command of the motor. This system thus instructs the control system to maintain the current value applied to the respective stator coils of the motor in the stopped state when an instruction for altering the gear ratio in the gear train is applied in the state that the motor 11 is stopped at the instructed rotating angle position, and the current flowing through the stator is maintained constantly even if the input to the control system is varied during the gear shifting.
Patent JP-S6211080-A (JP)
Title: Freezing of packaged food with aqueous solution of ethyl alcohol
Inventor: TOKUNAGA TOKIO
IPC: A23L3/36
Filed: 1985-07-05
Abstract: PURPOSE:To maintain the freshness of a good and to increase the added value, by throwing a packaged food into an aqueous solution of ethanol cooled to an ultra-low temperature, thereby freezing the food in a short time. CONSTITUTION:A food packaged with a synthetic resin film is frozen in a short time by throwing the food into an aqueous solution of ethanol (preferably 50% concentration) cooled to an ultra-low temperature. (e.g. 50 deg.C).
Patent JP-H11336011-A (JP)
Title: Asphalt plant
Inventor: FUJIWARA KAZUYA
IPC: E01C19/02
Filed: 1998-05-29
Abstract: PROBLEM TO BE SOLVED: To enhance spalling-resistance, abrasion-resistance, and durability of an air-heating furnace in an asphalt plant. SOLUTION: Ceramic fiber blocks 27 formed by folding non-woven ceramic fiber cloth having a specified thickness, called a blanket to form a nearly rectangular parallelepiped are laid to form a heat-insulation layer 26 in the air-heating furnace of an asphalt plant. An heat resistant adhesive 28 is applied on the surface of the ceramic fiber blocks 27, and a spun and woven ceramic fiber cloth 29 is stuck on the face to which the heat resistant adhesive 28 is applied.
Patent JP-H09330506-A (JP)
Title: Magnetoresistance effect-type thin-film magnetic head and its manufacture
Inventor: IKEGAWA YUKINORI
IPC: G11B5/40
Filed: 1996-06-11
Abstract: PROBLEM TO BE SOLVED: To obtain a magnetoresistance effect-type thin-film magnetic head in which a crack is hardly generated by a method wherein an interlayer insulating film is formed in such a way that its film stress is within a definite range after its heat treatment and its hardening operation and a stress which is applied to a heat-treated part at the interlayer insulating layer is lowered. SOLUTION: A lower-part shielding layer (b) composed of a soft magnetic material is plated so as to be formed on a substrate (a) as an insulating layer, a cap 1 (c) is then formed, and a magnetism sensing element (d) is formed so as to be covered with an insulating cap 2 (e). Then, an upper-part shielding and web magnetic pole (f) is plated so as to be formed, and a cap 3 (g) and a back cap (h) which are composed of an insulating material are formed. Then, a coil (j) is formed, and a lower-part interlayer insulating layer (i) and an upper-part interlayer insulating layer (k) are formed so as to sandwich the coil. At this time, a heat treatment is executed at 240 deg.C for one hour in an atmosphere which contains oxygen, a resist is hardened, and the lower-part interlayer insulating layer (i) is formed.  Then, the coil (j) is formed, and the upper-part interlayer insulating layer (k) is hardened and formed in the same method. Lastly, and upper-part magnetic pole (m) and a coil outgoing line (n) are formed, and a write element is completed.
Patent JP-H10337342-A (JP)
Title: Racket frame
Inventor: MATSUOKA TOYOTAKE
IPC: A63B102/02
Filed: 1997-06-06
Abstract: PROBLEM TO BE SOLVED: To widen a sweet spot and to increase strength of a racket frame, by making at least a part of reinforcing fiber for a face corner part higher than reinforcing fiber in other parts of a tennis racket in an almost rectangular shape made of fiber reinforced synthetic resin. SOLUTION: This racket frame 1 in an almost rectangular shape is made of fiber reinforced synthetic resin. As a fiber for reinforcing at a corner part, a fiber with tensile strength not lower than 500 kg.f/mm<2> , especially one with 500-800 kg.f/mm<2> is used. On the other hand, a carbon fiber with tensile strength of not higher than 450 kg.f/mm<2> , especially one with 360-450 kg.f/mm<2> is used at an almost straight part other than corner parts. That is, the tensile strength of high intensity fiber for reinforcing of a corner part is made as 1.2-2.0 times, especially 1.4-1.8 times, high as a fiber for reinforcing other parts. A range where the high intensity fiber is placed is to be a range of 100-150 mm including a part where the curvature of inner periphery preferably becomes the minimum.
Patent JP-S5939697-A (JP)
Inventor: YAMAGISHI TAKESHI
IPC: B66F5/00
Filed: 1982-08-30
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S5940196-A (JP)
Inventor: TAKESHITA MITSUHISA
IPC: G21D1/02
Filed: 1982-08-30
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-2000336316-A (JP)
Title: Curable resin composition for top coating matte coating material and coated material coated with the composition
Inventor: TAMAI HITOSHI
IPC: C09D201/00
Filed: 1999-05-28
Abstract: PROBLEM TO BE SOLVED: To obtain the subject composition having excellent physical properties of coating film, low staining properties, improved adhesivity and matte characteristics by making the composition include a specific polymer having a specified difference between solubility parameters at each stage of polymers obtained by two-stage polymerization. SOLUTION: This composition comprises a base resin component having curing properties at a room temperature and under a heating condition as a coating material resin, such as an acrylic resin. The resin component has >=0.2 difference in solubility parameter between a polymer obtained from a first-stage monomer and a polymer obtained from a second monomer. In the second stage polymerization, after the polymerization conversion of the first-stage polymerization [the conversion(solid content concentration of a resin solution in a real polymerization)/(theoretical solid content concentration of a resin solution when it is assumed that a monomer fed to a polymerizer is polymerized 100%)×100] reaches >=50%, the second-stage polymerization is preferably carried out.  In the molecular weight of each stage, preferably the molecular weight of the resin obtained at the first stage is 15,000 to 100,000 and that of the resin obtained at the second stage is 3,000-25,000.
Patent JP-H01317017-A (JP)
Title: Oscillation circuit
Inventor: SAKAMOTO MAKOTO
IPC: H03K3/03
Filed: 1988-06-17
Abstract: PURPOSE:To reduce the occupied area of an integrated chip and to attain the oscillation at a comparatively lower and wider frequency by controlling the charge/discharge of a capacitor intermittently. CONSTITUTION:A clock with a high frequency obtained comparatively easily is used in an oscillation circuit oscillated through the provision of an input delay means 2 between the input and output of an inverse amplification means 1 and a control means 3 applies charge/discharge of a capacitor C2 of an input delay means 2 intermittently by controlling the turning on/off of switch means S1-S4. The delay between the input and output deciding the oscillating frequency is increased and the oscillation at a low frequency is attained. Thus, the oscillation output with a comparatively lower frequency is obtained and the oscillation circuit with a small occupied area on the chip and facilitating the circuit integration is obtained.
Patent JP-H08311172-A (JP)
Title: Thermoplastic resin composition
Inventor: ITO KATSUMI
IPC: C08G61/08
Filed: 1995-05-24
Abstract: PURPOSE: To obtain a thermoplastic resin composition comprising a copolymer prepared by copolymerizing a specific norbornene-based monomer, etc., in a specific ratio and a charge generating substance, etc., providing a coating film excellent in transparency free from production of gel, useful as a binder for a sensitive material, etc. CONSTITUTION: This thermoplastic resin composition comprises (A) a copolymer obtained by copolymerizing (i) 99-1wt.% of one or more monomers of formula I (A and B are each H, a halogen, a 1-10C hydrocarbon, etc.; X and Y are each H or a monofunctional organic group; K is 0 or a positive integer; (q) is 0 or 1) such as a 5-methoxycarbonylbicyclo[2,2,1]hept-2-ene, etc., with (ii) 1-99wt.% of one or more monomers of formula II (C and D are each A) such as bicyclo[2,2,1]hept-2-ene, etc., and (B) a charge generating substance such as amorphous selenium, etc., and/or a charge transfer substance such as a carbazole derivative, etc.
Patent JP-S5852553-A (JP)
Title: Heat diffusivity measuring method
Inventor: AZUMI TADAHIKO
IPC: G01N25/18
Filed: 1981-09-24
Abstract: PURPOSE:To precisely measure diffusivity of heat, by using, as a parameter, the product of a relaxation coefficient of a heat loss curve of a sample temperature, and time t1/2 required for making a temperature of reverse side of the sample reach 1/2 of its maximum value, and also taking thickness (l) of a sample into consideration. CONSTITUTION:To one surface of a disk-like sample 1 whose radius and thickness are (a) and (l), respectively, laser light is irradiated instantaneously as indicated with an arrow 2, and its temperature rise thetal is observed by a thermocouple contact 3 attached to the other surface. In this case, when a coefficient Kb is decided (provided that alpha=Kbl<2>/t1/2, (alpha) is diffusivity of heat of a sample) by using as a parameter the product of a relaxation coefficient K of a heat loss curve of a sample temperature, and time t1/2 required for making a temperature of sample reverse side reach 1/2 of its maximum value, and also taking thickness (l) of a sample into consideration, it is unnecessary to device a parameter  required for compensation, at every measurement, and the diffusivity of heat can be measured precisely.
Patent JP-H0315797-A (JP)
Title: Foreign matter checking device
Inventor: SUGANO SATOSHI
IPC: G01V9/00
Filed: 1989-06-14
Abstract: PURPOSE:To quickly detect foreign matters by leading the pressure wave having a known frequency to a fuel aggregate with water as the medium to oscillate foreign matters. CONSTITUTION:An ultrasonic oscillator 7 generates the pressure wave and propagates it to mixed foreign matters in a fuel aggregate 1, where many covered pipes 5 are arranged, with liquid as the medium. Foreign matters as the check object are very smaller than covered pipes 5, and this pressure wave oscillates only foreign matters. These foreign matters collide against covered pipes 5 to generate an AE (acoustic signal), and the AE is measured by an AE sensor 8 provided for covered pipes 5. If foreign matters exist, the AE having a high intensity level is measured; and foreign matters are checked in this manner. Thus, only foreign matters are oscillated but oscillation of covered pipes 5 is stopped to suppress the occurrence of the AE accompanied with oscillation of covered pipes 5.
Patent JP-S6041131-A (JP)
Title: Loading system of control program
Inventor: HASHIZUME KONOMI
IPC: G06F9/445
Filed: 1983-08-17
Abstract: PURPOSE:To control on-line type and stand-alone type devices having the same function by a common control program by providing an access switching circuit. CONSTITUTION:In the stand-alone type device, a signal line 12 switches data reading or writing from/in a memory and is kept at writing state when a signal is ''0'' and reading state in case of ''1''. A read-only memory ROM3 and a random access memory RAM4 have quite the same address constitution and a control program is stored in the ROM3. The on-line type device can load the control program from the external to the RAM4 without providing the ROM3. Thus, both the stand-alone type and on-line type devices can be controlled by the same control program.
Patent JP-H0716237-A (JP)
Title: Interconnecting device for facilitating joining and fastening of spinal bone
Inventor: JIINNRUISU BUIGUNOODO
IPC: A61B17/70
Filed: 1992-05-18
Abstract: PURPOSE: To provide a linkage device of a simple structure involving a forked cylindrical head part in a vertebra coapting/clamping tool for anchoring an integral bar used therefor and involving annular elements each having a clamp bar, for its easy mounting and prevention of distortion of the bars. CONSTITUTION: A single integral bar 2 is set for its use across a spinal column to couple together a fixed number of clamping tools each constituted of a pseudo bone anchorage part formed out of a screw or bent plate. The clamping tool comprises a screw 3, which is constituted of a screwed pseudo bone anchorage bar 4 and a forked cylindrical head part 5 adapted to hold the integral bar 2 between its prongs 5a and 5b and to be clamped by a clamp screw 6 driven in an internal thread 7. An integrating/cross-tensioning device involves two annular elements 9 each provided on the outside periphery with a clamp bar 10 of fixed length. The clamp bars 10 being slidable are adapted to be clamped inside clamp collars 11. The two collars 11 are superimposed, through which a common clamp screw 12 is tightened perpendicularly to the two clamp bars 10.
Patent JP-2000097781-A (JP)
Title: Temperature sensor and manufacture thereof
Inventor: TAKAHASHI SOTOO
IPC: G01K7/22
Filed: 1999-05-28
Abstract: PROBLEM TO BE SOLVED: To obtain a temperature sensor comprising a radial thermistor formed by connecting a pair of signal lines with a pair of rod-like electrode wires led out from a thermistor in the same direction in which diameter at the temperature detecting part is reduced while ensuring reliability of bonding between the electrode wire and the signal wire. SOLUTION: A pair of electrode wires 22 are buried at an interval in the direction substantially parallel with the direction of the column axis 21a of a columnar thermister 21 and one end part 22a is led out to one end 21b side of the columnar thermister 21. A pair of core wires (signal wires) 31 spaced apart substantially in parallel with the direction of the column axis 21a are led out from the outer tube 33 of a two core tube 30 and connected with respective electrode wires 22 at one end parts 22a thereof. Both wires 22, 31 are bonded by laser welding while being overlapped such that the diagonal K1 connecting respective electrode wires 22 intersects the diagonal K2 connecting respective signal wires 31 when viewed from the direction of the column axis 21a.
Patent JP-S636020-A (JP)
Title: Epoxy resin composition and hardening of said epoxy resin
Inventor: KAMAGATA KAZUO
IPC: C08G59/18
Filed: 1986-06-25
Abstract: PURPOSE:To obtain the title compsn. being useful for an insulating paint for a printed circuit board, etc., and having excellent electrical insulation properties, mechanical characteristics, heat resistance, moisture resistance and adhesiveness, comprising an epoxy resin, a compd. having an ultraviolet polymerizable terminal double bond and a specific imidazole-4(5)-dithiocarboxylic acid. CONSTITUTION:1pt.wt. epoxy resin (A) having two or more epoxy groups in a molecule, such as bisphenol A diglycidyl ether, 0.1-1pt.wt. compd. (B) having ultraviolet polymerizable terminal double bond such as (meth)acrylate and 2-10pts.wt., based on 100pts.wt. of the sum of A+B, imidazole-4(5)- dithiocarboxylic acid represented by the formula (wherein R2 is H, CH3, C2H5, undecyl, heptadecyl or phenyl; R4 is H or CH3) are blended.
Patent JP-H05342485-A (JP)
Title: Method and device for estimating gas leakage source
Inventor: KASAHARA HIROSHI
IPC: G08B21/00
Filed: 1992-06-10
Abstract: PURPOSE:To provide the method and device for estimation capable of evaluating the accuracy of the estimate value of the gas leakage source based on the gas leakage detection in a plant or the like. CONSTITUTION:The device estimating the gas leakage source is provided with a gas leakage detecting means 1 located at plural parts in the space to be detected, a gas leakage source estimating means 2 estimating the gas flow direction and the gas leakage source based on plural gas leakage detection sources which are detected by the means 1 and an output means 3 displaying the gas leakage source estimated by the means 2. It is also provided with a means 4 detecting a direction of a wind which detects the direction of a wind in the space to be detected, displaying the gas leakage source only when the angle which is formed by the direction of a wind detected by the means 4 and the gas flow direction estimated by the means 2 are within the set range.
Patent JP-H10323104-A (JP)
Title: Rice transplanter
Inventor: MATSUOKA HIDEKI
IPC: A01C11/02
Filed: 1997-05-23
Abstract: PROBLEM TO BE SOLVED: To aim at the reduction of the size, weight, production cost, etc., of a top link structure by fixing a nut member at a high accuracy to reduce a force for the rotating operation of a screw shaft. SOLUTION: This rice transplanter is constructed by mounting a transplanting part to a traveling vehicle through a top link 25 and a lower-link, also integrating the screw shaft 83 and a nut member 84 into the top-link 25, and forming as freely extending and contracting. In this case, the nut member 84 is fixed by a spigot fitting to the link member 78 forming the top-link 25.
Patent JP-H10325342-A (JP)
Title: Two cycle internal combustion engine
Inventor: TAKADA YOSHIHIRO
IPC: F02B75/02
Filed: 1997-05-24
Abstract: PROBLEM TO BE SOLVED: To simplify a structure, suppress increasing of friction to the minimum so as to prevent reduction of an output, and prevent a cumulus of carbon and the like. SOLUTION: In a two cycle internal combustion engine of a mixture direct injection type, an operating piston 15 fitted to a pump operating chamber 10 formed on a combustion chamber side of a cylinder head 3 is moved in reciprocation according to change of pressure in the combustion chamber. Compressed air or mixture is supplied toward an upstream side of a mixture injection valve 31 for injecting mixture to combustion chambers 6, 7 by a pump P driven by the reciprocating motion of the operating piston 15.
Patent JP-S6127565-A (JP)
Title: Multi-color image forming device
Inventor: SHOJI HISAFUMI
IPC: H04N1/52
Filed: 1984-07-18
Abstract: PURPOSE:To obtain an image whose color balance is excellent, by executing current control to semiconductor laser light of high performance directly by a data signal, oscillating laser light whose intensity has been modulated, and forming an elecromagnetic latent image of each separate color on a photosensitive body. CONSTITUTION:A high output laser oscillator 50 is modulated directly by a multi-color image signal which is not shown in the figure, collimated 51 through mirrors 54, 55 and reflected by a polygon 52, and a photosensitive body 30 is irradiated by an optical beam Lk through an (fo) lens 53. The beam Lk is yellow first, and an electrostatic latent image corresponding to a yellow signal is formed on the photosensitive body 30, and developed by a yellow toner. Subsequently, the photosensitive body 30 is rotated, an electrostatic latent image is formed at every beam of a signal of magenta, cyan and black, and developed 34-36 by magenta, cyan and black at each time, and in the end, a transfer paper P is fed and a toner image of four colors is trasferred 41 in a lump, destaticized 42 and fixed 45, and discharged 46. In this way, power of a light source is saved, the device is made compact, and an image whose color balance is good is obtained.
Patent JP-S6085734-A (JP)
Inventor: ROORENSU II KURUTSUKUSU
IPC: G01R33/20
Filed: 1984-07-19
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S63313891-A (JP)
Title: Semiconductor integrated circuit device for driving laser diode
Inventor: HIRAYAMA HIROMITSU
IPC: H01S5/00
Filed: 1987-06-16
Abstract: PURPOSE:To observe driving currents required for preventing the damage of a laser diode by connecting a resistor for monitor and a monitor terminal to a source in a current source FET for switching and a source in a FET for offset currents. CONSTITUTION:A drain terminal for a FETQ8 for driving offset currents is connected to an output terminal 7, and a gate electrode is connected to an offset current control terminal 6. A resistor R2 for monitoring offset currents is connected between a source electrode for a current source FETQ7 and a power terminal 2, and a source electrode for the FETQ8 for driving offset currents is connected to an offset current monitor terminal 10. That is, resistors R1, R2 for monitor, a switching current monitor terminal 9 and the offset current monitor terminal 10 are mounted, thus easily observing output currents without decreasing working speed.