baber/WOPTO huggingface dataset:
Patent JP-H08237061-A (JP)
Title: Low pass filter
Inventor: UMEDA KAZUHIRO
IPC: H03H7/09
Filed: 1995-02-28
Abstract: PURPOSE: To make the size of a low pass filter small and to reduce the number of components. CONSTITUTION: Inductances L1, L2 provided as series branches of the low pass filter are arranged closely at a small interval L such as 2mm. A mutual inductance is produced through close arrangement of the inductances and the inductance produced equivalently by the mutual induction is resonated with a capacitance provided as a parallel branch. The attenuation characteristic on request to form an attenuation pole is surely realized by this resonance and since the distance L is selected smaller, space saving is realized. Since it is not required to insert a separate circuit element for the resonance, the number of components is reduced.
Patent JP-S60184229-A (JP)
Title: Optical heterodyne/homodyne detection receiver
Inventor: MINEMURA KOUICHI
IPC: H04B10/2513
Filed: 1984-03-02
Abstract: PURPOSE:To make a polarizing beam splitter unnecessary and to reduce attenuation of a signal light by taking out the signal for control of the first and the second polarization controllers from the second optical output terminal of a photo coupler. CONSTITUTION:The output light of a local oscillating light source 7 and the output optical signal of an optical transmission line 1 are synthesized and are branched and outputted to the first and the second optical output terminals 5 and 6 of the photocoupler respectively. The output light of the second optical output terminal 6 passes an analyzer 20 and is inputted to a photodetector 21 consisting of an InGaAs-PD and is detected directly and is converted to an electric signal. The output signal of the photodetector 21 is amplified by an amplifying circuit 22 and has AC signal components separated by a filter 23 and is applied to the first and the second control circuits 24 and 25, and DC voltages applied to the first and the second polarization controllers 31 and 32 are so controlled that these AC signal components are about zero.
Patent JP-H0597907-A (JP)
Title: Production of finely particulate water-soluble polymer
Inventor: MANFUREETO NIISUNAA
IPC: C08F2/10
Filed: 1991-03-06
Abstract: PURPOSE: To inexpensively obtain a finely divided water-soluble polymer by polymerizing a water-soluble unsaturated monomer in an aq. medium by a radical initiator in the (absence) presence of a surfactant up to a specific conversion ratio and adding a residual amt. of the surfactant to complete polymerization.  
     CONSTITUTION: A water-soluble monoethylenically unsaturated monomer (e.g. acrylic acid) is polymerized in at least 20 wt.% of an aq. soln. while a finely divided water-soluble polymer gel is formed in a kneader in the presence of a radical forming initiator (e.g. acetylacetone peroxide) to produce a finely divided water-soluble polymer. In this case, 0.1-10 wt.% of the surfactant (e.g. disodium monoethanolamidesulfosuccinate silinolate) is used with respect to the total monomer amt. and, at first, the monomer is polymerized in the absence of the surfactant or in the presence of up to 50% of the surfactant until a monomer conversion ratio becomes 60% and, next, a residual amt. of the surfactant is added to the reaction mixture to complete polymn. to obtain the finely divided objective water-soluble polymer. 
     COPYRIGHT: (C)1993,JPO
Patent JP-S59167013-A (JP)
Title: Plasma cvd equipment
Inventor: MARUYAMA KAZUMI
IPC: C23C16/509
Filed: 1983-03-12
Abstract: PURPOSE:To reduce the heat loss for substrate heating by a method wherein substrates are mounted on a tray and this tray is so constructed as to surround and contain one heat source from both sides in a vertical plane. CONSTITUTION:A substrate heater 5 fixed in a vacuum vessel is provided vertically. Substrates 7 on which films are formed are mounted on a tray 8. The tray 8 is hung surrounding both sides of the heater 5 so that the heat radiated from the heater 5 is kept in a space between the heater 5 and the tray 8. High frequency electrodes 4 are provided in parallel with an interval from each side of the tray 8, and plasma reaction is generated at both sides of the heater to form the prescribed films on the substrates 7. Because the substrates 7 and other items are provided vertically, even if undesirable reaction products adhered to the walls of the vessel and the like fall off, they are not deposited on the substrates 7.
Patent JP-S57154328-A (JP)
Title: Method for bending work
Inventor: ARAKI JINICHIROU
IPC: B21D7/06
Filed: 1981-03-19
Abstract: PURPOSE:To bend a material to be worked without buckling both sides, by applying different tensions to both ends of this material where the channel- shaped section is changed continuously along the longitudinal direction. CONSTITUTION:The approximate center in the longitudinal direction of a material 1 to be worked which has a channel-shaped section and bas the form of this section changed continuously is held between a bending jig 4 and press material 5. The jig 4 is formed to a shape like a flat roller, and the thickness in the direction of the diameter is tapered in accordance with the variance of breadthwise dimensions of the material 1. A constant tensile stress per a unit sectional area is applied to both end parts of the material 1 through chucks 7 and 8 which hold both ends of the material 1 between themselves. Simultaneously, chucks 7 and 8 are driven in directions of arrows (a) and (b) by respective driving sources 9 and 10 to apply a bending stress to the material 1. Thus, since the material 1 held between holding faces 4a and 5a of the jig 4 and the press material 5 is not slipped, the mateial 1 is bent well without creases due to buckling in both sides 3 and 3.
Patent JP-S58158012-A (JP)
Title: Magnetic head core
Inventor: HIGUCHI TETSUO
IPC: G11B5/127
Filed: 1982-03-16
Abstract: PURPOSE:To prevent the generation of short-circuiting between a magnetic core and windings, by using a reinforcing plate, which is formed of a material having lower electrical conductivity than the conductivity of the magnetic core, in preventing the contact of the magnetic core with the windings. CONSTITUTION:A reinforcing plate 4 is formed of non-magnetic ferrite or barium titanate having lower electrical conductivity than the conductivity of a magnetic core 3, and is formed with a relief groove 4a and a winding part 4b. The plate 4 is so formed that, when it is superposed on the core 3, both lateral edges (inside edges) of the groove 4a are located on the side inner than the lateral edges of the winding window 3 of the magnetic core and the outside edges of the winding part 4b are located on the side outer than the outside edges of the winding parts 3a, 3b of the core 3. Even if the plate 4 is superposed on the core 3 and windings 5 are applied thereto, the windings 5 do not contact with the core 3; therefore, short-circuiting is eliminated even if no insulating treatments are applied.
Patent JP-H02220579-A (JP)
Title: Magnetic recording and reproducing device
Inventor: ISHII HIROYUKI
IPC: H04N5/91
Filed: 1989-02-22
Abstract: PURPOSE:To record content information of a program without losing an original picture and to display the information on a TV screen at any time by recording a character data relating to the recording number to a prescribed location of a vertical fly-buck period in a form of the data. CONSTITUTION:A video signal 2 inputted from an input terminal 17 is inputted to a synchronizing gate generator 1 and a gate pulse 6 corresponding to the horizontal scanning period is generated for a prescribed period in the vertical fly-back period. On the other hand, a data relating to a recording program content is sent from a system controller 7 to a character data generating processing unit 8, and a character data 9 is generated. A video signal 2 is inputted to a synthesizer 10 and a video signal is replaced with the character data 9 only for a prescribed period among the vertical period with the gate pulse 6 and stored in a memory 11. On the other hand, a character signal 12 corresponding to the character data 9 is generated by a character generator 13 from the processing unit 8 and fed to an input video signal 2 by a monitor output synthesizer 14, outputted from a monitor output terminal 15 and character information is confirmed on a TV screen.
Patent JP-H03242359-A (JP)
Title: Transparent heat insulating material
Inventor: SAKAMOTO AKIHIKO
IPC: C03C27/12
Filed: 1990-02-21
Abstract: PURPOSE:To improve heat resistance by mixing water glass at a specific SiO2/Na2O molar ratio with at least one of an inorganic acid, organic acid, organic acid ester and silica gel. CONSTITUTION:At least one of an inorganic acid such as sulfuric acid, an organic acid such as formic acid, an organic acid ester such as methyl formate and hydrophilic silica gel fine powder is added and mixed with water glass at 1.5-3.0 molar ratio of SiO2/Na2O of Na2SiO3 so as to provide 0.15-0.85 molar concentration in the case of the inorganic acid, 0.3-2.5 molar concentration in the case of the organic acid, 5-50vol.% volume ratio in the case of the organic acid ester and 0.1-10wt.% in the case of the hydrophilic silica gel fine powder. Thereby, a transparent heat insulating material 3 is obtained. A heat-resistant adhesive 4 is then used to provide two transparent crystallized glass plates 2 held at a prescribed opposite interval using a frame unit 1. The aforementioned transparent heat insulating material 3 is subsequently placed therebetween and heat-treated to afford a fireproofing wall.
Patent JP-H02219835-A (JP)
Title: Rubber material for vehicle
Inventor: SUGAWARA HIROSHI
IPC: C08L27/16
Filed: 1989-02-22
Abstract: PURPOSE:To obtain the title material of a lowered friction coefficient and excellent sliding properties by adding a specified polyvinylidene fluoride resin to a mixture based on a rubber component and carbon black and vulcanizing or heat-treating the obtained mixture at a predetermined temperature. CONSTITUTION:At least 1 pt.wt., desirably at most 30 pts.wt., polyvinylidene fluoride resin of a melt viscosity <=28000P, desirably >=15000P is added to a mixture based on 100 pts.wt. rubber component (e.g. EPDM rubber) comprising natural and/or synthetic rubber or both of them and a thermoplastic resin and 10-200 pts.wt. carbon black, and the resulting mixture is vulcanized or heat- treated at 200 deg.C or higher, desirably 300 deg.C or below.
Patent JP-S58156686-A (JP)
Inventor: FUKUCHI SHIGEKI
IPC: E06B9/68
Filed: 1982-03-15
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-H10243031-A (JP)
Title: Multi-value data transfer system
Inventor: MIYAJIMA GAKUO
IPC: H03M5/20
Filed: 1997-02-25
Abstract: PROBLEM TO BE SOLVED: To improve the reliability in the case of transfer of data by preventing mis-conversion in the case of binary conversion when a multi-value expression is realized by voltage differences. SOLUTION: A conversion control section 6 continuously monitors a voltage detected by a voltage detection section 5 that detects a voltage of a multi-value signal converted into the voltage and the conversion control section 6 outputs a conversion permission signal 8 to an n-value binary conversion section 3 when the monitored voltage is kept within any voltage range corresponding to each multi-value signal value stored in a conversion table 7 for a prescribed time or over. The n-value binary conversion section 3 converts the voltage upon the receipt of the signal. According to the conversion as above, mis- conversion due to noise or the like is not cared about and the reliability at data transfer is improved.
Patent JP-H02220902-A (JP)
Title: Snowtire and brake pin therefor
Inventor: OMI AKIYOSHI
IPC: B60C11/14
Filed: 1989-02-21
Abstract: PURPOSE:To improve braking performance and durability without damaging a rod surface by fitting a metal flange member in which metallic pins are planted to a metallic member to be covered and burying clearances between the pins by space rubber. CONSTITUTION:Pins 3 made of a wire rod such as a piano wire are fitted into the embedded holes 6 of a circular metal flange 5 and fixed. Then, on the outer peripheral part of the flange 5, is mounted a metal member 7 to be covered. A columnar space rubber member 8 having grooves 9 corresponding to the pins 3 is mounted so as to bury clearances formed by the pins 3. When this brake pin 1 is mounted on a snow tire, the tips of the pins stick a road surface to exhibit braking performance and driving force. Since all the brake pins act as a spring member, buffer function can be performed. In such a way, the braking performance and durability can be improved without damaging the road surface.
Patent JP-H09211370-A (JP)
Title: Scanning optical device and polygon mirror cover
Inventor: KANAZAWA HIROSHI
IPC: G02B26/10
Filed: 1996-02-02
Abstract: PROBLEM TO BE SOLVED: To correct the positional error of a spot by reading out error information on a reflection surface used to deflect a luminous flux from a memory based on an index signal and controlling the luminous flux so that the error may be corrected. SOLUTION: Since an influence by plane tilt and irregular rotation appears as the shift of respective spots on a photoreceptor drum in a subscanning direction, the angle of a dynamic prism is changed so that the influence may be corrected. The shift amount of the spot on the photoreceptor drum caused by the plane tilt of the respective surfaces of the polygon mirror is previously inputted in the memory 401 of a central control circuit 400. When the reflection surface used for next scanning is specified from output from a polygon sensor 374, the angle of the dynamic prism capable of cancelling the shift of the spot caused by the reflection surface is obtained, and a prism driving part 161 is controlled based on the obtained result so as to set the angle of the dynamic prism.
Patent JP-H03243305-A (JP)
Title: Extrusion molding method and extrusion molder of cement mortar
Inventor: TOSHITANI KAZUYUKI
IPC: B29C48/38
Filed: 1990-02-21
Abstract: PURPOSE:To improve the fluidity and shapeability of the cement mortar concerned and consequently prevent defective part due to air left in a molded body from developing by a method wherein the cement mortar fed in a vacuum deaerating chamber is turned into flakes having a specified thickness or less. CONSTITUTION:Reinforcing fiber-containing cement mortar is extrusion-molded with an extruder and, after that, fed in a vacuum deaerating chamber under the state being turned into flakes. Concretely, the gap of a cylindrical slit part 6 at the tip of a foregoing state screw 1, which feeds the cement mortar in the vacuum deaerating chamber 3, is set to be 1-5mm. By employing mortar in the form of flakes having the thickness of 5mm or less, the fluidity and shapeability of the mortar is improved, resulting in allowing to prevent defective part due to air left in a molded body obtained from developing. The supply of the mortar in the form of flakes 11 having the thickness of 5mm or less to the vacuum deaerating chamber 1 can be realized by setting the gap of the cylindrical slit part 6 to be 1-5mm. If the gap is set to be about 1-2mm, though the air left becomes less, the fear of the clogging at the slit part may develop. By rotating the inside face constituting the cylindrical slit part 6 together with the mortar delivery screw, the delivery of the mortar is facilitated.
Patent JP-S58158961-A (JP)
Title: Semiconductor integrated circuit device
Inventor: ARAI YUUJI
IPC: H01L29/78
Filed: 1982-03-17
Abstract: PURPOSE:To prevent the damage of an element by isolating an N type epitaxial layer on a P type substrate via a P type layer and forming complementary MOSFETs on an insular region, thereby preventing the latchup. CONSTITUTION:An N type epitaxial layer 5 on a P type substrated 4 is isolated via a P type layer 6 reaching a substrate 4, a P<+> type source and drain 7 and an insulating gate 8 are formed on one N type insular region 5a, a P channel MOSQp is formed, an N<+> type source and drain 10 and an insulating gate 11 are formed through a P type well on other N type insular region 5b, and an N channel MOSQn is formed. Wirings are formed so that the insulating gates becomes input side and the drain of the Qn and the source of the Qp become output side, and the substrate 4 (VSS) is grounded. In this device, even if noise is introduced to the input and output sides, the QP, Qn are isolated via the layer 6. Accordingly, no latchup phenomenon occurs, thereby preventing the damage of an element.
Patent JP-H05242160-A (JP)
Title: Image feature extraction device, image collation device, and image retrieval device
Inventor: AKAHORI HIROSHI
IPC: G06F17/30
Filed: 1992-02-27
Abstract: PURPOSE:To provide the image retrieval device which performs retrieval by semiautomatically extracting feature quantities from objects in images and collating the images even when the extracted feature quantities and the objects in the images are different in number, and can adaptable for various retrieval requests. CONSTITUTION:When an image data base is generated, the areas and names of constituent elements in the images are inputted and the image feature quantities in the specified areas are automatically extracted. When the images are collated, a corresponding constituent element extraction part 9 extracts the corresponding constituent elements in the images and a constituent element similarity calculation part 10 finds the similarities between the elements, element by element, from the image feature quantities and couples them to find the degrees of matching between the elements. The similar image is retrieved according to the found degrees of matching between the images and then the retrieval can be performed even if the numbers of the constituent elements in the images are different; and diverse retrieval is provided by changing the form of the function for finding the similarities.
Patent JP-H0971543-A (JP)
Title: Production of halogen-containing condensate
Inventor: KATO EISAKU
IPC: C07C235/12
Filed: 1996-02-28
Abstract: PROBLEM TO BE SOLVED: To obtain in a simple operation in high yield a halogen-containing condensate useful as a raw material for photographic use, medicines, dyes and synthetic fibers, esp. as a functional coupler intermediate for photographic use. SOLUTION: This halogen-containing condensate is obtained by dehydrating condensation and halogenation simul-taneously of a compound of formula I (R1 to R5 are each H or a substituent; L1 is a linking group; (p) is 0 or 1) and an amine of formula II or a phenolic compound of formula III ((n<1> ) is 0-5) using a halogenating agent (e.g. phosphorus trichloride) pref. in the presence of a catalyst (e.g. pyridine) in a solvent (e.g. toluene) if needed, at -20 to 150 deg.C.  The amount of the compound of formula II to be used is 0.8-1.2mol per mol of the compound of formula I, and the amounts of the halogenating agent and catalyst to be used are 1 to 2 molar times and 0.001-1mol per mol of the starting materials The objective halogen-containing condensate can be obtained without the need of extracting any intermediate and also without worrying about the handling of the reaction reagents and by-products.
Patent JP-H05238013-A (JP)
Title: Manufacturing print head
Inventor: KIKUCHI HIDEYUKI
IPC: B41J2/055
Filed: 1992-02-27
Abstract: PURPOSE:To provide a method for manufacturing a print head on which piezoelectric elements can be joined with highly accurate positioning. CONSTITUTION:Patterns 16 indicating positions for joining piezoelectric elements are formed, by applying photoetching to an exposure mask, over the surface of a vibration plate 13 that is joined to the surface of a head substrate. Then, the piezoelectric elements are joined over the patterns 16. Positioning of the mask is executed by aligning a first positioning marker 12 provided over the surface of the head substrate with a second positioning marker 15 formed on the mask in a position corresponding to the first marker 12 through a notched part 14 formed to the vibration plate 13.
Patent JP-H10236360-A (JP)
Title: Reflector for vehicle
Inventor: OSHIMA HIDEO
IPC: B62J6/20
Filed: 1997-02-25
Abstract: PROBLEM TO BE SOLVED: To provide a reflector according to a user's age, the distinction of sex, or interest to contribute to safe running of a vehicle of this type by drawing patterns of various forms on a base plate, and fitting a reflector to a part of the pattern. SOLUTION: A reflector 1 comprises one base plate 2 and two reflecting plates 3, 3. For example, the base plate 2 has an outline of a skeleton form, and the pattern of the skeleton is drawn on the surface. Two reflecting plates 3, 3 are fitted to eye parts of the pattern. As the reflector 1 is fitted to spokes 11a, 11a, so that a when a bicycle 10 runs, with the rotation of the front wheel, the reflector 1 is rotated to be seen as if the irises of the skeleton pattern move. Only the eye parts of the pattern can be reflected, the function of the reflection 1 is fulfilled, and the decorative performance is high so as to be joyful in use. Beaver outline form and pattern and geometrical pattern can be used of the base plate 2.
Patent JP-H03248737-A (JP)
Title: Manufacture of spline shaft
Inventor: YAEGASHI TOSHIHIKO
IPC: F16C3/02
Filed: 1990-02-23
Abstract: PURPOSE:To manufacture a spline shaft at a low cost and with high accuracy by pressing a metal tube with a die or a mandrel corresponding to the outside or the shape of a spline shaft and with the mandrel or the die corresponding to them. CONSTITUTION:The spline shaft 10 is manufactured by carbon steel tube for machine structural use 6. Spline crests 8 and spline grooves equivalent to the shape of the spline are formed inside the die 2 and outside the mandrel 4. The steel tube 6 is pressed by using these die 2 and mandrel 4. Then, the steel tube 6 is removed from the die 2 and the mandrel 4 to manufacture the spline shaft being a male shaft having spline crests. Consequently, the spline shaft 10 can be manufactured in small man-hour, at a low cost and with high accuracy.
Patent JP-H03244477-A (JP)
Title: Game device for sports
Inventor: NAITO KAZUHIKO
IPC: A63B69/00
Filed: 1990-02-23
Abstract: PURPOSE:To allow both young and aged to make exercise with an appropriate amount of motion comparatively easily and pleasantly by judging and displaying the position where a moving target is in coincidence with an object to be slung, and thereby changing the image software. CONSTITUTION:In the game concerned, a ball-shaped resilient object 1 is slung to a moving target, for example a bird or plane, in the images following a certain story developed on a screen 2. If one plays with this so as to hit the target, he can make exercise naturally while enjoying himself with sports. As for the position of the moving target on the screen, the X-Y coordinates of the target in the image software stored on a disk 5 are set as program in a computer 8 incorporated in a judging/displaying means 22, while the X-Y coordinates of the position on the screen where the slung object has reached are sensed by a position sensor 7 of infrared type etc. and fed to the computer 8, and the coordinates of the target are compared with the coordinates of the slung object 1 by the computer 8, which places a judgement. A score table is given on a display 9 in case the two are identical.