baber/WOPTO huggingface dataset:
Patent JP-H04187755-A (JP)
Title: Crankshaft and its production
Inventor: YOSHINO AKIRA
IPC: F16C3/06
Filed: 1990-11-20
Abstract: PURPOSE:To improve the durability of the journal of a crankshaft without increasing its cost and weight by forming a nitride layer on the surface of the journal. CONSTITUTION:The unmasked journal 22a of a steel crankshaft 22 is degreased, cleaned and placed in a heat-treating furnace 1, and a fluorine-based gas, e.g. a gaseous mixture of NF3 and N2, is introduced into the furnace 1 and heated to a specified reaction temp. to generate active fluorine. Consequently, the org. and inorg. contaminant on the journal 22a is removed, the base Fe and Cr or the oxide such as FeO and Cr2O3 are converted to a fluoride film, and the absorbed O2 is also removed. The journal 22a is subsequently heated to the nitriding temp. of 480-700 deg.C, and NH3, etc., are added under these conditions. The fluoride film is reduced or broken by H2 or a trace amt. of moisture, active N atom is infiltrated and diffused into the metal, and a compd. layer contg. such nitride as CrN, Fe2N and Fe3N is formed on the surface of the base metal.
Patent JP-H11151566-A (JP)
Title: Complex casting body
Inventor: YUGAWA YOSHIHARU
IPC: B22D19/00
Filed: 1997-11-18
Abstract: PROBLEM TO BE SOLVED: To obtain a complex casting body which can manufacture at a low cost and easily recycles in the case the complex casting body becomes unnecessary and can suitably utilizes as a structural body for machine use excellent in damping capacity by constituting a casing body composed of a metallic casting and filling material which is mainly composed of sand sealed in the casing body by incorporating in the inner space of a mold at the time of casting the casing body. SOLUTION: A bed 1 of a ball grinding machine for ball bearing, is constituted of the rectangular box shaped casing body 2 made of cast iron and the filling material 3 sealed in the inner part thereof. Since the filling material 3 is sealed in the casing body 2 by incorporating in the inner space of the mold at the time of casting the casing body 2, needless to say, gap between the casing body 2 and the filling material 3, is not generated, and further, the filling material 3 is compressed from the surrounding with the shrinkage of the casing body 2 according to the cooling and the solidification of the cast iron and then, the filling material 3 is fastened to further higher density than the state just at the time of forming the forming body. This complex casting body can be decomposed into the metal and the sand at the time of being unnecessary.
Patent JP-H0617376-A (JP)
Title: Woven-fabric conditioning composition containing emulsified silicone mixture
Inventor: TEIMOSHII JIYON TEIRAA
IPC: C11D17/04
Filed: 1992-11-26
Abstract: PURPOSE: To obtain a stable fabric-conditioning composition which may be coated onto tumble dryer sheets or admixed with detergent bases and uniformly conditions washed fabrics, by mixing a specific fabric conditioning agent with an emulsified mixture of a silicone oil and a silicone emulsifier. CONSTITUTION: This non-separable, stable fabric conditioning composition comprises (A) 60-99 wt.% of a hydrocarbon-based fabric conditioning component (for example, a cationic quaternary ammonium salt) and (B) 40-1 wt.% of an emulsified mixture consisting essentially of a silicone oil of formula I [R is methyl, phenyl or the like; (x) is 5-100,000] having a viscosity of 10-1,000,000 cSt and a silicone emulsifier such as a compound of formula II [R<1> is R'(C2 H4 O)m -(C3 H6 O)n -R<2> [R' is a divalent hydrocarbon; R<2> is H, CH3 or the like; (x) and (y) are each >=1, provided that (x)+(y) is <=10,000; (m) and (n) are each 0, 1 or larger, provided that (m)+(n) is 1 to 300; the content of silicon is 1-15 wt.%] or formula III [R<4> is a 6-50C alkyl connected to the Si atom via a Si-O-C or a Si-C bond, or an alkylamino; (p) is 0-10,000;  (q) is 1-10,000; provided that (q)+(p) is 1-20,000; the content of silicon is <=65 wt.%]. The fabric conditioning composition gives a washed fabric having excellent softness and antistatic effect.
Patent JP-H03177518-A (JP)
Title: Induction heating apparatus for preventing buckling at edge part of grain oriented silicon steel plate
Inventor: NIIKURA KATSUHIKO
IPC: C21D1/42
Filed: 1989-12-05
Abstract: PURPOSE:To prevent buckling deformation during annealing by heating to an only narrow range in width of edge part of a steel strip by inserting the edge part in the direction of width of strip between a C type iron core having gap and arranging an electric conducting material having crossing posture to leakage flux at upper and lower parts of a pass line. CONSTITUTION:An induction heating device provides the C type iron core 1 and coil 2 and gap 1a of C type iron core 1 is made to the posture inserting the edge part of strip S. One pair of the electric conducting materials 3a, 3b are set at upper and lower parts as inserting the pass line of strip S between so as to be in parallel to outer wall of the C type iron core 1. The induction heating to the strip S by the leakage flux is restrained because of cutting-off with the electric conducting materials 3a, 3b. The strip S is heated to high temp. at only narrow range in the width of edge part (s) positioned in the gap 1a. Therefore, crystallized grains at only edge part (s) of the strip are coarsed and the buckling strain at the time of finish-annealing is prevented.
Patent JP-H11149568-A (JP)
Title: Three-dimensional picture constituting device
Inventor: INOUE YOSUKE
IPC: G06T15/08
Filed: 1997-11-18
Abstract: PROBLEM TO BE SOLVED: To set a threshold value while recognizing the whole pixel value distribution of plural two-dimensional fault images being an original picture in a three-dimensional picture processing accompanied with a threshold value processing. SOLUTION: Two-dimensional pictures #1-#n being the object of a threshold value are displayed on a display part 19 of a threshold value setting window. A maximum and minimum value distribution diagram 15 is displayed for each two-dimensional picture. A threshold value is selected on the distribution diagram 15. Moreover, the two-dimensional pictures #1-#n after the threshold value processing based on the selected threshold value are displayed on the display part 19. An observer judges whether or not the selected threshold value is appropriate by viewing the pictures of the display part 19, and decides a final threshold value. Thus, it is possible to set a threshold value while recognizing the whole distribution of the plural two-dimensional pictures. Thus, the threshold value processing for obtaining a target picture can be easily attained.
Patent JP-H10160212-A (JP)
Title: Ventilating fan
Inventor: KAWASAKI MASAHIKO
IPC: F24F7/007
Filed: 1996-11-28
Abstract: PROBLEM TO BE SOLVED: To provide a ventilating fan, capable of detecting the smoke of cigarettes quickly and effecting the optimum ventilation. SOLUTION: A ventilating fan is provided with a ventilating fan main body 1, having the shape of a box body communicating indoor with outdoor and provided with a fan 2 therein, a first sensor 3, provided in the ventilating passage of the ventilating fan main body 1 and detecting large particles, a second sensor 4, provided in the ventilating passage and detecting small particles, and a control circuit 5, operating a ventilating fan based on the increasing amount of contamination, detected by the first and second sensors. According to this constitution, the behavior of pollutant particles are detected by two kinds of sensors and the ventilating fan can be operated quickly.
Patent JP-H01160367-A (JP)
Title: Inverter
Inventor: SHIMIZU KEIICHI
IPC: H05B41/282
Filed: 1987-12-17
Abstract: PURPOSE:To provide high input power factor by making more delay of response of control action than a half period of AC power supply and raising slowly when the oscillating voltage is raising. CONSTITUTION:A switching circuit of inverter-applied discharge lamp integrates a full-rectified circuit 2 which connects to AC power supply 1 and supplies non-smoothing DC current from this part for inverter 5 together with for the series circuits which are composed of capacitor 31 for power accumulation, inductor 32 and diode 33 of the partly smoothed circuit 3. Peak voltage detector 6 and frequency control circuit 7 are also provided. Inverter 5 consists of main switching transistor(Tr) 51, parallel oscillating circuit 54 composed of inductor 52 and capacitor 53, saturable current transformer 55 for plus feedback and capacitors 56-57. Peak voltage detector 6 detects the peak voltage of collector voltage (Tr) 51 and transfers it to frequency control circuit 7. By this reason, the total envelope of waveforms are similar to the DC power supply when the input voltage is low and the oscillating voltage raising.
Patent JP-H11225107-A (JP)
Title: Receiver, intermittent frame synchronization method and portable terminal
Inventor: WAKAMATSU SHUNICHI
IPC: H04W52/02
Filed: 1998-11-09
Abstract: PROBLEM TO BE SOLVED: To reduce power consumption and the cost while keeping accuracy of generating an intermittent equipment timing. SOLUTION: Relating to this receiver, an averaging means 2 sets separate values to two decodes 22 to apply frequency division to a clock signal that is a clock signal for a clock outputted from a low speed clock generating means 1 for separate periods and averages them to provide an output of a slot timing signal. When a saving counter 3 counts the slot timing signals and the count reaches a prescribed value, the counter 3 outputs a coincidence signal and a reception means 4 receives a communication signal while receiving input of a coincidence signal.
Patent JP-H09133582-A (JP)
Title: Differential optical path interferometer and fourier transform spectrometer employing it
Inventor: HATTORI SHUZO
IPC: G01J3/45
Filed: 1995-11-10
Abstract: PROBLEM TO BE SOLVED: To enhance wave number resolving power by enhancing the wave front stability of a sweeping luminous flux to be measured and performing the sweeping with a long sweeping length, and to reduce the SN ration by increasing the sweeping speed. SOLUTION: A luminous flux to be measured is split, by means of a half mirror reflector 41, into a reflected luminous flux and a transmitting luminous flux which advance, respectively, to first and second optical systems 42, 43 before being combined again at the half mirror reflector 41. The first and second optical systems 42, 43 have odd number of rotary plane mirrors 421, 431, respectively, and an optical path length difference generating means 44 turns the odd number of rotary plane mirrors 421, 431 and the half mirror reflector 41 integrally by a predetermined angle thus generating an optical path length difference between the first and second optical systems 42, 43.
Patent JP-H10159167-A (JP)
Title: Monitor for vacuum valve unit in sewerage system
Inventor: HIRATA KUNIO
IPC: E03F7/00
Filed: 1996-11-28
Abstract: PROBLEM TO BE SOLVED: To provide a monitor capable of monitoring each vacuum valve unit at real time at a control department and facilitating maintenance. SOLUTION: A sewerage system reserves sewage water discharged from a building in a sewage water measure of a vacuum valve unit 1 and carries the reserved sewage water to a vacuum station 9 by an underground vacuum sewage water pipe 4 by using vacuum pressure generated at the vacuum station 9. In this case, a sensor 2 to detect an inside state and a terminal instrument 3 to transmit detected information of the sensor 2 are set on the vacuum valve unit 1, the terminal instrument 3 is connected to a cable laid along the vacuum sewage water pipe 4, and one end of the cable 5 is connected to monitor systems 6, 7, 8 set on the vacuum station 9. The monitor systems 6, 7, 8 transmit information to a control department 16 through a telephone line 10.
Patent JP-H07322396-A (JP)
Title: Acoustic wave transmitter-receiver
Inventor: MAIAA SEDO SEIDOOBOROOFUOROSHI
IPC: H04R17/00
Filed: 1994-11-28
Abstract: PURPOSE: To provide an acoustic wave transmitter-receiver capable of changing effective aperture size in both of an azimuth plane and a height plane and suppressing a lateral oscillation mode. CONSTITUTION: A 1st electrode 16 is formed on the upper surface of a relaxer ferroelectric layer 12 of an ultrasonic transducer 10 through a dielectric layer 18 of which thickness is gradually increased from the center part to the periphery and a 2nd electrode 20 is formed on the lower surface of the layer 12. When bias voltage to be gradually boosted from a potential difference '0' volt is impressed between the 1st electrode 16 and the 2nd electrode 20, the center part of a height aperture of the transducer 10 is excited before the excitation of the peripheral part of the aperture, so that the aperture can be dynamically controlled.
Patent JP-H03178799-A (JP)
Title: Punching device for paper sheet
Inventor: HOSODA SHOZO
IPC: B26D7/18
Filed: 1989-12-08
Abstract: PURPOSE:To efficiently perform the punching operation for variously shaped products from a paper plate, by hammering a hammering hammer with the actuation of a hammering rod by air, after fixing the paper plate specific hammering position with its holding with the pressing of the paper plate by the pressing body provided at the lower end of the lift body which is descended by an air cylinder first. CONSTITUTION:Superposed paper sheets B are fixed with their pressing by a pressing body 8 by descending a lift body 6 by exhausting air from a suction and exhaust port 3 simultaneously with feeding it from a suction and exhaust port 2, after placing the paper sheets B on a paper sheet receiving plate 1 and locating the hammering part C thereof at the lower part of a hammering hammer 10 by a light marker, etc. Air is then fed from the air suction and exhaust port 11 of a small cylinder room 4, a hammering rod 9 is operated to the lower part, the top part 10' of the hammering hammer 10 is hammered by the lower end thereof, the specific hammering part C of the paper sheet B is hammered by the tip part of the hammering hammer 10, the hammering part of the paper sheet B is pressed to the lower part from the notch part 1' of the paper sheet receiving plate 1 and parted from the connection part of a paper product A.
Patent JP-H09156751-A (JP)
Title: Parts aligning feeder
Inventor: MATSUSHIMA WATARU
IPC: B65G43/08
Filed: 1995-12-06
Abstract: PROBLEM TO BE SOLVED: To provide a parts aligning feeder for modified cross-section parts, by which parts having the abnormal attitudes are removed, and the stable operation and the high speed conveyance are ensured. SOLUTION: A parts aligning feeder is provided with a rotary drum 10 so supported as to be rotated around an approximately horizontal axis and provided with a plurality of blade plates 13 juxtaposed on the inner wall peripheral surface, and a parts guiding passage 31 extending along the upper edge, and it is supported by a vibration generating means 40. And a conveying chute approximately horizontally extending from the inner part of the rotary drum 10 to the outer part, and first and second abnormal attitude parts judging and removing means 50, 55 provided on the terminal of the parts guiding passage 31, and for detecting and removing parts to be conveyed with the abnormal state are sequentially provided.  The speed of response of the first abnormal attitude parts judging and removing means 50 is set higher than the speed of response of the second abnormal attitude parts judging and removing means 55.
Patent JP-H05147170-A (JP)
Title: Multi-layered plastic molded article and manufacture thereof
Inventor: KATO SHUNICHI
IPC: C08L101/00
Filed: 1991-12-02
Abstract: PURPOSE:To obtain a multi-layered plastic molded article with low combustion calories in the combustion period, less combustion residue, and easy incineration by respectively providing a layer containing a specific rate of paper or pulp in thermoplastics, and a layer consisting mostly of thermoplastics. CONSTITUTION:At least, each layer is provided wherein the one layer contains 1-60wt.% paper or pulp in thermoplastics and the other layer consists mostly of thermoplastics. The outer surface layer 1 is composed of material consisting mainly of common plastic, and featured such that, as required, it is provided with a shielding property by applying a coloring agent of pigments and the like and a filling agent, in order to enable the color of an intermediate layer 2 to be shielded and also enable it to be colored into preferable colors. For the intermediate layer 2, a plastic material made to contain materials having paper or pulp solution-dissociated into thermoplastics is employed.
Patent JP-H08174937-A (JP)
Title: Paper reversing mechanism for perfecting printer
Inventor: SAKAMOTO NORIO
IPC: B41J13/00
Filed: 1994-12-21
Abstract: PURPOSE: To prevent misoperation of an operator by downsizing a paper reversing mechanism for a perfecting printer and preventing a paper from being discharged to the outside of the printer during perfect printing. CONSTITUTION: When a paper reversing mechanism is operated, a paper retracting drum 1 turns to the right slightly from a Fig. (a) to a Fig. (b) and stops. A paper 6 whose one face (top face) is printed is conveyed by a convey roller 4, guided by a take-in guide section 15, and pushed into the drum 1 along its inner peripheral face with the printing face inside. The back end of the paper 6 is stopped in a state somewhat protruded from the drum 1. The drum 1 is further turned to the right from the Fig. (b) to a Fig. (c), the back end of the paper 6 is pulled out by a retracting convey roller 5 so as to convey the paper 6 which is reversed in a manner up-side down to a printing mechanism 7 by convey rollers 13 and 14. The drum 1 is returned from the Fig. (c) to the Fig. (a). The paper 6 whose rear face is also printed is conveyed by a convey roller 3 and discharged on a stacker 8.
Patent JP-H10163312-A (JP)
Title: Manufacture of semiconductor device
Inventor: HACHISUGA ATSUSHI
IPC: H01L21/316
Filed: 1996-11-28
Abstract: PROBLEM TO BE SOLVED: To obtain a semiconductor device which allows prevention of thinning of a gate oxide film caused by a bird's beak sink due to etching without narrowing active regions. SOLUTION: Part of a silicon nitride film 3, a nitride oxide silicon film 2 and a silicon substrate 1 are removed in this order to form a groove 5 by anisotropic etching using a resist mask; next, an oxide film 6 is formed on the main surface of the silicon substrate 1 including the inside of the groove 5 by a CVD method followed by forming a polycrystalline silicon film 7 on the silicon oxide film 6 including the inside of the groove 5 by the CV method. Next, a sidewall 7a consisting of a polycrystalline silicon film on the side 5a of the groove 5 is formed by anisotropic etching so that its top end 9a may have the same height as or the lower height than that of the nitride oxide silicon film 2 followed by forming a field oxide film in the inside of the groove 5 and its neighborhood.
Patent JP-H01160109-A (JP)
Title: Digital filter
Inventor: SHIGEHISA MIYUKI
IPC: G06F17/14
Filed: 1987-12-16
Abstract: PURPOSE:To simply attain the elimination of waveform distortion by multiplying a filter function to a Fourier component so as to attain filtering. CONSTITUTION:A function f(x) with a variable domain of a<=x<=b comprising an input data string is transformed into a function g(x) for which the relation g(b)=g(a)=0 holes approximately and the function g(x) is subjected to Fourier integration to calculate the Fourier component G(omega). Then the Fourier component G(omega) subjected to filtering is Fourier inverse transformed to calculated a function gF(x) and the f(x) obtained by replacing the g(x) in the equation for obtaining f(x) from g(x) by gF(x) is calculated as fF(x), and the function fF(x) is used as the filter output. In this way even in the case of f(a)not equal to 0 or f(b)not equal to 0, the waveform distortion of the function f(x) is eliminated without newly deforming the waveform near x=a and b.
Patent JP-H03179431-A (JP)
Title: Non-linear optical material
Inventor: JIYON JIEI KESUTAA
IPC: C08G59/20
Filed: 1990-11-26
Abstract: PURPOSE: To obtain a material as curing agent for epoxy resin by incorporating a specified compd. having nonlinear optical characteristics and contg. at least two active H atoms bonding to more than one N atoms bonding to an arom. ring and at least one divalent electron withdrawing group bonding to the arom. ring part one molecule. CONSTITUTION: This nonlinear optical material as a curing agent for epoxy resin contains a compd. having nonlinear optical characteristics and contg. at least two active H atoms bonding to more than one N atom bonding to an arom. ring and at least one divalent electron withdrawing group bonding to the arom. ring per one molecule. The compd. is represented by formula I or II. In the formulae I, II, A is a divalent electron withdrawing group, (n) is 2 or 3, R is H, 1-12C aliphatic, alicyclic or arom. hydrocarbyl, at least two of R's are active H atoms on different N atoms and X is di- or trivalent org. hydrocarbon, etc.
Patent JP-H10161043-A (JP)
Title: Variable wavelength optical filter
Inventor: YOSHIZAWA TETSUO
IPC: G02B6/26
Filed: 1996-11-28
Abstract: PROBLEM TO BE SOLVED: To provide the variable wavelength optical filter having a low-price interference filter having a high-reflection film with uniform characteristics and a high-precision and low-price interference filter moving means which is needed for wavelength selection. SOLUTION: This filter is equipped with the interference filter 10 formed by arranging a couple of glass plates 11 and 12 having mirror films 13 and 14 on their main sufaces so that the mirror films 13 and 14 face each other across a tapered gap and when the interference filter 10 is rotated round an axis perpendicular to a reference plane of symmetry with penetrates the interference filter 10 so that the couple of glass plates 11 and 12 are made symmetric about a plane, the optical axis of light inputted to the interference filter 10 is set so that the light is parallel to the vertical axis and does not overlap with it.
Patent JP-H01162282-A (JP)
Title: Tracking system
Inventor: TSUNODA YOSHITO
IPC: G11B7/095
Filed: 1987-12-18
Abstract: PURPOSE:To stably obtain a tracking servo signal by making the generating frequency of a mark for detecting a tracking signal higher than the cut-off frequency of a low-pass filter circuit provided in a servo circuit. CONSTITUTION:A low-pass filter 11 is provided in a servo circuit 12, and the cut-off frequency is made lower than the generating frequency of the mark for detecting the tracking signal recorded previously and intermittently on a recording medium. Consequently, even when a defect exists on a mark 2 for generating and outputting the tracking signal, the influence of the defect is completely eliminated by a low-pass filter circuit 11. Further, since a cut-off frequency fC of the circuit 11 is made to be equal to a band fS of the servo circuit 12 or above, a tracking servo itself is not influenced by the defect at all.
Patent JP-2001143399-A (JP)
Title: Information recording medium, information reproducing device, information recording and reproducing device, information reproducing method, and information recording and reproducing method
Inventor: TAKAHASHI HIDEKI
IPC: G11B7/0045
Filed: 1999-11-09
Abstract: PROBLEM TO BE SOLVED: To provide an information recording medium which can reduce the error occurrence rate in read-modify-write operation when PC data are overwritten by sector fields onto AV data recorded in ECC block units. SOLUTION: The information recording medium has sector fields where data are recorded and also has blocks defined by a collection of a specific number of sector fields and each sector filed has an identification information area (integrity flag). In this identification information area, 1st identification information showing that data are recorded with reliability of 1st level or 2nd identification information showing that data are recorded with reliability of 2nd level lower than the reliability of 1st level is recorded.