baber/WOPTO huggingface dataset:
Patent JP-H0246342-A (JP)
Title: Variable speed gear for car
Inventor: ON SHIYOUDEN
IPC: F16H9/10
Filed: 1988-07-22
Abstract: PURPOSE: To change a gear ratio steplessly by providing a roller holding member with a plurality of rollers movably in a circumferential direction, fitting the rollers rollably into radial grooves formed at a driving disc, and providing lock mechanism for locking these rollers unmovably to the holding member. CONSTITUTION: A driving disc 1 is fitted to a rear wheel hub or the like of a bicycle, and a roller holding member 2 is fitted to a driving sprocket of the bicycle. When the member 2 is rotatory-driven, a roller assembly held thereto comes into the position of a pressing member 422. Then an elastic part 28 of a spring 27 is deformed abutting the member 422, and an engaging roller 26 moves frontward in a rotating direction to engage the roller assembly unmovably with the member 2. The rotational force of the member 2 is transmitted to the disc 1 through the roller 24 of the roller assembly in the engaged state and a groove 12. When a cable 46 is pulled to decenter the member 2, the abutting position of the roller 24 to the groove 12 of the disc 1 changes, and the distance between this position and the rotational center of the disc 1 changes.
Patent JP-H1114612-A (JP)
Title: Method and device for introducing sample of gas chromatograph
Inventor: SUGIMOTO KIYOSHI
IPC: G01N30/10
Filed: 1997-06-23
Abstract: PROBLEM TO BE SOLVED: To positively introduce various kinds of constituents from a low boiling point to a high boiling point and thermally decomposable constituents. SOLUTION: A glass insert 13 with a short internal stagnation time (approximately 4 seconds or less) and a small internal volume is provided in a sample vaporization room 10, and the temperature of the insert 13 is set to a proper temperature that is at least equal to the boiling point of the solvent of a liquid sample when injecting a sample, the sample is injected, and then temperature is increased. Also, when the sample is injected, a carrier gas pressure is increased temporarily. A sample liquid that is sprayed into the insert 13 as a small liquid drop reaches the entrance of a column 22 quickly and is sent into the column 22 while the fine liquid drop is mixed with the vaporization solvent. Since the sample does not stay in the insert 13, the tailing of the solvent can be suppressed and the low-boilingpoint constituent can be separated from the solvent appropriately.
Patent JP-H0828177-A (JP)
Title: Shield excavating machine
Inventor: KAWABATA AKIYUKI
IPC: E21D9/06
Filed: 1994-07-11
Abstract: PURPOSE:To improve workability by connecting a drilling part, an intermediate part the length of which is specified and a tail trunk part watertightly to each other, freely bending them with a broken-type jack and storing hydraulic equipment, a control device, etc., in the intermediate part. CONSTITUTION:Length X of a first intermediate part (d) is set larger than total length Y of a drilling part (a) and a girder part (b1) and smaller than L of a following calculation expression in the case of the minimum curvature radius R (unit m) of drilling 0.03>=R-[R<2>-(L/2)<2>]<1/2>. As the first intermediate part (d) or an intermediate part consisting of the first intermediate part (d) and a second intermediate part (e) is provided, the total length becomes larger, and as weight is dispersed, drilling work is stabilized. Additionally, as the drilling part (a), the intermediate parts (d), (e) and the tail trunk part (c) are free to bend, control of the drilling direction becomes easy and certain. Furthermore, as hydraulic equipment such as a shield jack 6, an electric tower, etc., and control equipment 12 are stored in the intermediate parts (d), (e), it is needless to move them by a carriage in a tunnel. Conseauently, it is possible to certainly carry out construction in the soft foundation, etc.
Patent JP-H0843819-A (JP)
Title: Liquid crystal display device
Inventor: KIMURA HAJIME
IPC: G02F1/1335
Filed: 1994-08-04
Abstract: PURPOSE:To obtain a backlight whose luminance is high, where light absorption is little, and which is light in weight and thin by using an air layer and a long prism instead of a light transmission plate. CONSTITUTION:The long prism 1 controlling the direction of light by bending a light beam 65 outgoing from a fluorescent tube 2 is arranged in parallel with the fluorescent tube 2 near the fluorescent tube 2. A reflector 3 is provided under a liquid crystal display element through an air layer 4. The end of the reflector 3 on the fluorescent tube 2 side is connected to the upper part of the prism 1. The base of the prism 1 is arranged in parallel with the surface of the base plate of the liquid crystal display element on the reflector 3. A diffusing plate is arranged between the liquid crystal display element and the air layer 4. The light beam 65 outgoing from the fluorescent tube 2 is guided to a distant place and the luminance becomes uniform on all the surface of a display screen by the prism 1.
Patent JP-H1066076-A (JP)
Title: High speed error sampling method with respect to coded two-dimension curve and high efficiency moving image coding method using the sampling method
Inventor: CHO YUSHIN
IPC: H04N19/60
Filed: 1996-07-12
Abstract: PROBLEM TO BE SOLVED: To provide a high speed error sampling method with respect to a coded 2-dimension curve and to provide a high efficiency moving image coding method using it. SOLUTION: The error sampling method to obtain an error of an optional side of a coded curve to a corresponding optional side of the original curve includes a process where a gradient of an optional side of the coded curve is obtained, a process where points of optional side of the coded curve are projected onto optional side of the original curve with respect to the horizontal or vertical axis based on the gradient, and a process where the projected horizontal or vertical distance is measured to decide an error between the coded curve and the original curve. Thus, high speed processing is attained in the case of coding/decoding a shape of a 2-dimension object by measuring the distance from the coded curve to the original curve based on the X or Y axis depending on the gradient of the coded curve, using the distance for an error for the coding.
Patent JP-H1072435-A (JP)
Title: Production of 2-aryl-5-perfluoroalkylpyrrole derivative and its useful intermediate
Inventor: KAMESWARAN VENKATARAMAN
IPC: C07D333/06
Filed: 1997-06-25
Abstract: PROBLEM TO BE SOLVED: To obtain the subject compound useful as a pest control agent, e. g. an insecticide, an acaricide, a nematocide, etc., and an intermediate by reacting a specific amidonitrile with a geneophile in the presence of an acid and a solvent and without the presence of water. SOLUTION: A pest control agent expressed by formula IV is obtained by reacting an amidonitrile expressed by formula I [A is formula II (L is H or a halogen; M and Q are each H, a halogen, CN, etc.), etc.; R is H or a (substituted) 1-6C alkyl; (n) is 1-8] with at least 1 mole equivalent of a geneophile expressed by formula III (W is CN, NO2 , etc.; Y is H, Br or Cl, when R is H, Y is Br or Cl).
Patent JP-H0627334-A (JP)
Title: Optical waveguide
Inventor: TAKEUCHI YOSHIAKI
IPC: G02B6/12
Filed: 1992-07-10
Abstract: PURPOSE:To improve the connectability of an optical waveguide formed on a substrate to another optical components such as an optical fiber and a laser diode, etc., by stacking auxiliary waveguides on the upper and lover parts of a width expanded waveguide part, and integrating those waveguides. CONSTITUTION:This optical waveguide is the one formed on the substrate 1, and the width of a main waveguide 3 at the input/output terminal part of a light circuit is expanded by tapering. The auxiliary waveguides 5 whose optical axes are parallel with each other and perpendicularly to the substrate 1 are formed on at least either on one side of the upper or lower part of the waveguide at the output terminal part as coming in contact with or approaching closely to the main waveguide 3. The terminating parts of the auxiliary waveguides 5 of the upper and lower parts on the side opposite to the waveguide end face are formed in tapered shape, and the input/output end face of the light circuit is formed integrally with plural waveguides. Therefore, since the partial mode field diameter of the optical waveguide can be expanded in the same substrate with low loss, the connectability to another components such as the optical fiber and the laser diode, etc., can be improved.
Patent JP-H09135169-A (JP)
Title: Anlog/digital converter
Inventor: SAI MEISHIYUN
IPC: H03M1/36
Filed: 1996-07-12
Abstract: PROBLEM TO BE SOLVED: To maintain an input bias current to a comparator stably by compensating a bias current having been given from a reference resistor to a comparator by means of a constant current source. SOLUTION: A plurality of resistors R(1), R(2),..., R(2N) whose resistance is the same in a reference voltage generating section 10 are connected in series between terminals of 1st and 2nd reference voltages Vref +, Vref -, and a plurality of reference voltages VR(1), VR(2),..., VR(2N-1) are provided from each connecting point of a plurality of series resistors by dividing a difference voltage VFS between the 1st and 2nd reference voltages with each resistor R. Furthermore, a comparator section 20 consisting of emitter-coupling comparators C1-C(2N-1) compares each of a plurality of reference voltages with an analog input signal to provide a comparison signal, respectively.  Then an encode section 30 codes an output of the comparator section 20 as digital data and provides an output and a constant current source section 40 consisting of constant current sources CS1-CS(2N-1) provides a bias current to each reference voltage input terminal.
Patent JP-H1132247-A (JP)
Title: Image-pickup device
Inventor: SUGA MITSUHIRO
IPC: H04N5/232
Filed: 1997-07-09
Abstract: PROBLEM TO BE SOLVED: To provide an image-pickup device which can reduce the effects of external disturbance noises with reduced cost. SOLUTION: An image-pickup device is provided with a CCD 2 which takes the photograph of an object and converts the photograph into video signals, a drive circuit 5 which controls the speed of the electronic shutter of the CCD 2, and an AGC 3 which constantly controls the outward output of the video signals by changing the gain of the video signals, wherein a disturbing level detecting circuit 6 which detects external disturbing noise is provided and the speed of the electronic shutter of the CCD 2 is controlled to a slow speed, when the circuit 6 detects external disturbance noise.
Patent JP-S6243561-A (JP)
Title: Detector for gaschromatograph
Inventor: ARIMOTO HIROZO
IPC: G01N27/62
Filed: 1985-08-20
Abstract: PURPOSE:To obtain a detector which has two functions of a surface ionization detector (SID) and a hydrogen flame ionization detector (FID) with an easy changeover, by providing a nozzle as opposed to a heating electrode while a collector electrode and an opposed electrode are arranged facing to each other near the heating electrode. CONSTITUTION:A sample gas is blown against a heating electrode 15 together with air or oxygen as carrier gas from a nozzle 4. At this point, the polarity of a DC power source 9 is selected and when the positive pole thereof is connected to the collector electrode 11 while the negative pole thereof to the opposed electrode 13, the sample gas is hydrolyzed on the surface of the electrode 15 to be ionized. The flow of the electrons released in the ionization is caught by the electrode 11 and a detector acts as SID. Then, when the carrier gas is switched over to hydrogen and blown against the electrode 15 together with the sample gas, hydrogen automatically ignites and burns the sample gas to generate ions. At this point, if the polarity of the power source 9 is selected and the negative pole thereof is connected to the electrode 11 while the positive pole thereof to the electrode 13, the flow of ions runs between the electrodes and thus, the detector also acts as FID.
Patent JP-H0235166-A (JP)
Title: Working footstool
Inventor: MIKUMO EIZABURO
IPC: E04G1/36
Filed: 1988-07-25
Abstract: PURPOSE:To prevent any trouble from occurring by attaching a footboard made up of a honeycomb sandwich panel and a frame housing this panel to a base top surface of a working footstool for a work device including a printer or the like free of opening or closing through a hinge. CONSTITUTION:A working footstool 1 is formed with a top open step base 3 with each staircase 2 at both ends and a footboard 5 attached to the top via each hinge 4 free of opening or closing. Then, it is assembled with the footboard 5 and a frame 6 as well as a honeycomb sandwich panel 7 housed in this frame 6, and both side edges of the frame 6 are made higher than both end edges, uprighting them from a top surface of the honeycomb sandwich panel 7 housed in the frame. With this constitution, dust or the like can be prevented from being dropped from both sides of the footboard 5.
Patent JP-H0628702-A (JP)
Title: Optical head device
Inventor: ANDO HIDEO
IPC: G11B7/125
Filed: 1992-07-10
Abstract: PURPOSE:To obtain an optical head which can supply a stable laser beam at a high response speed. CONSTITUTION:The optical head device has a beam splitter 8 located in a direction in which a laser beam Lf stimulated from a semiconductor laser 4 is emitted and splitting the detected laser beam from the laser beam Lf to keep the intensity of the laser beam Lf to be a prescribed level just after the laser beam Lf is generated. An F-APC circuit 30 monitoring the intensity of the laser beam from the laser 4 and controlling the intensity of the laser beam Lf from the laser 4 based on the monitored intensity level is installed in a direction into which the laser beam split by the beam splitter 8. Thus, the stable laser beam Lf with a high response speed is supplied.
Patent JP-H057901-A (JP)
Title: Manufacture of h-beam rough shape billet
Inventor: NAGAHIRO HISASHI
IPC: B21B1/08
Filed: 1991-06-28
Abstract: PURPOSE:To manufacture a rough shape billet efficiently and with high dimensional accuracy from a rectangular billet of a small cross section. CONSTITUTION:The manufacturing method is constituted of a first process in which a groove 4 is formed in the center part of the upper face and the lower face of a rectangular billet 1, while restricting stretch in the width direction of the rectangular billet 1, a second process in which the groove 4 of the rectangular billet 1 is enlarged by rolling down only a web 5 without restricting the stretch in the width direction of the rectangular billet 1, and a third process in which the groove 4 of the rectangular billet 1 is further enlarged by plural hole closing dies 7, and also, thickness of a flange 6 is thinned, and aide flange shape of a large cross section is manufactured from a small rectangular cross section stock.
Patent JP-H0740898-A (JP)
Title: Parachute opening control device
Inventor: KASEGI MITSUHIRO
IPC: B64G1/62
Filed: 1993-07-26
Abstract: PURPOSE:To provide a parachute opening control device by which a dropping object can be landed on a certain limited dropping distributed area on the ground or on the water surface. CONSTITUTION:A device is composed of auxiliary lines 6 which can put a canopy in a contracted or developed condition by creating a tensioned or relaxed condition by winding or unwinding one end side by a winding device while connecting the other end to the upper parts of shroud lines 4 to connect a dropping object 3 to the peripheral part of the canopy 2 being a resistance body of a parachute and a control device to issue a winding or unwinding signal to the winding device to open and close the canopy so that the dropping object can be dropped in the vicinity of a target point as close as possible by inputting a dropping position of the dropping object, a position of the target point and data on the direction of a wind, wind speed or the like. Thereby, even if an atmosphere condition is changed, the dropping object can be dropped accurately in the vicinity of the target point.
Patent JP-H1126447-A (JP)
Title: Manufacture of semiconductor device
Inventor: YOSHIKAWA RYOICHI
IPC: H01L21/316
Filed: 1997-07-09
Abstract: PROBLEM TO BE SOLVED: To provide a method of manufacturing a semiconductor substrate which can secure sufficient active regions by preventing the entry of a bird's beak. SOLUTION: First, a nitride film 22 is formed on the surface of a silicon substrate 10 in the pattern, where an element isolation forming planning region is opened. Next, a low oxidation speed region 11 is formed to the surrounding of element isolation forming planning region at the surface of the silicon substrate 10. Thereafter, a sidewall 24a consisting of a nitride is formed to the sidewall of the aperture of the nitride film 22. Here, after the low oxidation speed region 11 is formed, the silicon substrate surface of the element isolation forming planning region is oxidized, and an element isolation oxidation film 23 is formed.
Patent JP-S57109126-A (JP)
Title: Detecting system for track shift
Inventor: HIRAKURI SEISUKE
IPC: G11B5/588
Filed: 1980-12-26
Abstract: PURPOSE:To accurately detect the amplitude and direction of track shift, by recording a plurality of pilot signals with different frequencies at each track on a main information signal superimposingly, and detecting the pilot signals at playback at variable band filters. CONSTITUTION:Pilot signals with different frequencies are recorded at each track by superimposing with video signals on a magnetic tape. A playback signal from a playback head 19 is given to a preamplifier 20 and an FM demodulation circuit 21 and a video signal is demodulated 22. On the other hand, the demodulation signal is applied to a horizontal synchronizing signal separating circuit 23, and the separated horizontal synchronizing signal is applied to phase comparators 24a, 24b. When a control signal is applied to frequency dividers 27a, 27b constituting a PLL from a control circuit 30, a clock signal with different frequency is applied to variable band filters 31, 32 from voltage controlled oscillators 26a, 26b. The output is applied to level detectors 33, 34 and a differential amplifier 35 to output 36 a track shift detecting voltage. Thus, the amplitude and direction of track shift can be detected accurately.
Patent JP-H0739181-A (JP)
Title: Dc motor control circuit
Inventor: SATO SHOJIRO
IPC: H02P7/29
Filed: 1993-07-26
Abstract: PURPOSE:To provide a DC motor control circuit which has a small overshoot in a wide range of rotational speed and can be driven by a fast rise. CONSTITUTION:A voltage from a capacitor 15 of a control circuit 101 is supplied to an upper inverting input of a comparator 30 at the time of starting, and a real number-of-revolution voltage at a terminal 81 indicating the actual number of revolutions is compared with a voltage indicating a target number of revolutions by a differential amplifier 29 of an error voltage generator 10. Thus, an error voltage signal of the both is supplied to a lower inverting input of the comparator 30, a higher voltage signal of voltage signals to be supplied to the upper and lower inverting inputs of the comparator 30 is compared with a triangular signal from a triangular wave oscillator 31 to be supplied to a non-inverting input of the comparator 30, and hence an ON period duty ratio signal is generated to drive a DC motor.
Patent JP-S57108277-A (JP)
Title: Production of 4-butanolides
Inventor: KITAGUCHI NOBUYA
IPC: C25B3/29
Filed: 1980-12-26
Abstract: PURPOSE: To produce 4-butanolides (butyrolactones) in high yields by electrolytically reducing aldehyde and acrylic ester with the electrode of lead or lead alloy in an aq. emulsion state in the co-presence of a conductive supporting salt consisting of inorg. cation or the quaternary ammonium ion expressed by the specific general formula as its cation and an inter-phase moving catalyst.  
     CONSTITUTION: Satd. straight chain aliphatic aldehyde of 5W13 C numbers is used for aldehyde and lower alkyl ester of an acrylic acid, particularly, methyl acrylate is used for acrylic ester. This acrylic ester and aldehyde are put in an aq. emulsion state in the co-presence of a conductive supporting group using inorg. cation or the quaternary ammonium ion expressed by the formula as its cation and an inter-phase moving catalyst, and is electrolytically reduced with the cathode of lead or an alloy consisting essentially of lead. R 1 WR 4  in the formula are alkyl groups of 1W5 C numbers and the sum total of R 1 WR 4  is kept at ≤12. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-2000018732-A (JP)
Title: Compound heating boiler of sun light
Inventor: IN YUTAKU
IPC: F24S23/30
Filed: 1998-06-30
Abstract: PROBLEM TO BE SOLVED: To reduce installation cost and the occupation area of facilities by providing a water passage pipe through each focus of a sunlight condensation mirror body where the track of a pail-shaped condensation mirror is extended spirally and further providing a heat-collecting panel and a heat transfer rod in a water bath. SOLUTION: A condensing mirror 1 in a semi-circular pail shape is extended and wound spirally for forming a sunlight condensing mirror body. A rectangular water passage pipe 2 being erected while being located at the bottom surface focus part of each condensing mirror 1 is piped to each condensing mirror body. A support level 5 is attached around a space chamber 4 being provided at the center of a stand frame, a cage body for horizontally supporting a condensing lens 6 is organized and a water tank 7 is suspended at the lower end. A heat transfer rod 12 is erected at a heat- insulating stand 11 being provided at the bottom surface part of the water tank 7, and the top part is sealed to a heat-collecting panel 13.  The heat-collecting panel 13 being provided at the focus position of the condensing lens 6 transfers solar heat being condensed by the condensing lens 6 to the heat transfer rod 12, and heated water in the water tank 7 is further heated. By miniaturizing a boiler in this manner, facility cost and an occupation area can be reduced.
Patent JP-H0631084-A (JP)
Title: Hook of sewing machine
Inventor: HIROSE TOKUZO
IPC: D05B57/14
Filed: 1992-07-10
Abstract: PURPOSE:To assure smooth sliding of the rail of a rotating hook bobbin case holder and the groove of a rotating hook by forming at least a part of the outside surface of the rail of the rotating hook bobbin case holder of a coating layer consisting of high-density polyethylene(HDPE) contg. a lubricant. CONSTITUTION:The rotating hook bobbin case holder 4 is formed of a rotating hook bobbin case holder body 4a and the rail 13 consisting of a projecting part 4b and the coating layer B. The rotating hook 3 consists of a rotating hook body 3a and the coating layer A. The rotating hook body 3a and the rotating hook bobbin case holder body 4a are made of metals. The coating layers A, B consisting of the HDPE contg., for example, grease as the lubricant, are stuck peelably by using for example, an adhesive, to the outside surface 13a of the rail 13 and the inside surface 11a of the groove 11. The rotating hook bobbin case holder body 4a and the rotating hook body 3a may be formed of a synthetic resin and the rotating hook bobbin case holder 4 and the rotating hook 3 may be formed of a composite of a synthetic resin and metal. As a result, the wear resistance is improved and the inexpensive formation is executed by using the existing hooks to the rotating hook bobbin case holder body and the rotating hook body.