baber/WOPTO huggingface dataset:
Patent JP-S57121308-A (JP)
Title: Power amplifier
Inventor: OOMURA YOSHITO
IPC: H03F3/20
Filed: 1981-01-21
Abstract: PURPOSE: To enhance the power supply efficiency with a simple circuit constitution, by connecting a low pass filter, whose output is fed back to the terminal of an amplifier, in series to the amplifier which has the hysteresis characteristics due to positive feedback.  
     CONSTITUTION: An input signal 14 is applied to a terminal A, and a low pass filter 15 is connected to an amplifier 11 to which the hysteresis characteristics are given by a positive feedback resistance 12, and the output of the low pass filter 15 is fed back to the terminal A of the amplifier 11. In case that the voltage of the input signal 14 is increased from zero gradually in the positive direction, the output of the amplifier 11 becomes a positive maximum output voltage by the positive feedback function at an instant when the voltage becomes a positive finite value. This output is integrated by the low pass filter 15; and when it reaches a prescribed value, the output of the amplifier 11 becomes a negative maximum output voltage by the negative feedback function to the amplifier 11. Hereafter, the similar operation is repeated to output positive and negative maximum output voltages alternately. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S59131690-A (JP)
Title: Process for injecting into ground
Inventor: SHIMADA SHIYUNSUKE
IPC: C09K17/08
Filed: 1983-01-18
Abstract: PURPOSE:An alkaline injection solution obtained by combining a nonalkaline water-glass solution with an alkaline solution is used together with a nonalkaline water glass injection solution and a salt is added to the former solution to permit easy regulation of gelation time. CONSTITUTION:Injection into the ground of an alkaline solution obtained by combining a nonalkaline water-glass solution with an alkaline solution is combined with the injection of a nonalkaline water-glass solution and the former alkaline solution is allowed to contain a salt by adding it to one of the two components, thus effecting ground improvement. As the salt, is preferably cited an alkali metal salt, alkaline earth metal salt or aluminum salt and its content is preferably 0.2-7wt% based on the nonalkaline water-glass solution. EFFECT:The gelation is gradually accelerated, the gel strength is increased, further, the gelation is rapidly accelerated in the alkaline zone to give a wide range of instant gelation zone.
Patent JP-H10206716-A (JP)
Title: Lens unit driving mechanism for image forming device
Inventor: HIGASHIYA KATSUHIRO
IPC: G03G15/041
Filed: 1997-01-17
Abstract: PROBLEM TO BE SOLVED: To accurately perform moving and to reduce a manufacturing cost by reducing sliding resistance obtained when a carriage is moved and using a motor whose ability is low. SOLUTION: A lens unit 41 is provided on an exposing part and mounted on the carriage 43 which is placed on a frame 42. A roller 44 rolling on the upper surface of the frame 42 is provided on both ends of the carriage 43 in a width direction. A member 46 to be guided whose cross section is nearly U-shaped and which is engaged with a guide plate 45 extended and set in parallel with an optical axis is fixed on the carriage 43 on the upper surface of the frame 42. A slider made of synthetic resin whose frictional resistance is small is attached to an abutting part between the plate 45 and the member 46. Sliding load is reduced by the rolling of the roller 44, so that the load of the drive motor for moving the carriage 43 can be made small. The process accuracy of the plate 45 and the member 46 need not be enhanced, so that the cost can be reduced.
Patent JP-S56102340-A (JP)
Title: Method of controlling casting temperature by heat transfer type molding sand and heat transfer type molding sand
Inventor: KITAMURA KATSUAKI
IPC: B22C9/00
Filed: 1980-01-21
Abstract: PURPOSE: To improve crystal configuration and simplify mold molding by enclosing a molding pattern with a molding flask by providing a space for packing of molding sand, packing the molding sand mixed with silica sand, metal powder or fine grains in said space and providing a synthetic resin film on the surfaces of the molding sand and molding flask.  
     CONSTITUTION: In a vacuum casting mechanism which is constituted of a molding flask 4, etc. communicating with an air suction source through a suction duct A, a required casting mold 1 is placed on a stand 2, and the pattern is enclosed with a molding flask 4 by providing a space for packing molding sand. In this space, the molding sand is packed by being mixed with metal powder or metal grains of required meshes and silica sand or natural sand at required ratios meeting each stock material such as alloys, iron and steel. Next, a synthetic resin soln. is sprayed onto the irregular surfaces of the molding sand and the molding flask 4, whereby the film is formed, and the inside of the laminated layers of the molding sand and the outer side of the molding flask 4 are airtightly shut off. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H09193257-A (JP)
Title: Method and mold for molding lens, lens and scanning optical system
Inventor: NAKANISHI HIROSHI
IPC: B29D11/00
Filed: 1996-01-18
Abstract: PROBLEM TO BE SOLVED: To reduce the orientation having an angle becoming a problem with respect to a laser polarizing direction and heat stress and improve a shape of a spot by cooling a lens material so that the solidification of a lens material advances in the direction almost crossing the scanning direction of the lens at a right angle in cooling of the lens material in a mold. SOLUTION: When a lens material is molded into a desired shape within a mold, the lens material is cooled so that the solidification thereof advances in the direction almost crossing the scanning direction of a lens at a right angle at a time of the cooling of the lens material. For example, when a polycarbonate resin is molded, the temp. of heaters 7, 8 is set to 140 deg.C and the temp. of the temp. control medium flowing to a water pipe 6 is controlled to 100 deg.C. When temp. distribution is applied to the periphery of a cavity 5 as mentioned above, the cooling of the resin injected into the cavity 5 is dominantly performed by the medium flowing through the water pipe 6 within a movable mold member 4 low in temp.  That is, the cooling in the direction along the sub-scanning direction of the lens, that is, the direction going toward the inside of the lens from a side surface becomes dominant.
Patent JP-2000202487-A (JP)
Title: Screw of aeration equipment
Inventor: TANABE SEIICHI
IPC: C02F3/20
Filed: 1999-01-13
Abstract: PROBLEM TO BE SOLVED: To prevent the quantity of air to be sucked from being reduced by being contaminated the inside of a hollow shaft and by narrowing the inner diameter of the hollow shaft through sticking of the suspended matter in the sewage by keeping the shaft such that the sewage penetrating into the hollow shaft does not rise in the hollow shaft when the hollow shaft is driven to rotated. SOLUTION: In the screw 2, a blade 20 is mounted in herical form on the outer peripheral surface of the bottom end part of the hollow shaft 1 rotated by a motor. In such a case, a slit 11 is formed at the hollow shaft 1 part of the surface side of the blade 20 becoming a negative pressure side when the hollow shaft 1 is rotated.
Patent JP-H08191828-A (JP)
Title: Blood examination apparatus
Inventor: OKURA TADAHIRO
IPC: A61B5/1455
Filed: 1995-01-19
Abstract: PURPOSE: To reduce a measuring error to enable accurate measurement by detecting the light from one light emitting element by a plurality of light detection elements. CONSTITUTION: A blood examination apparatus is equipped with one light emitting element irradiating the tissue of a living body with light, two light detection elements 7, 8 detecting the light transmitted through the tissue or reflected from the tissue to send out the detection signals corresponding to the blood components in the tissue and an operational processing means 3 performing operational processing on the basis of the detection signals from two light detection elements 7, 8. Since the average value of the respective light detection data from a plurality of the light detection elements 7, 8 can be calculated by the operational processing means 3 by providing a plurality of the light detection elements to one light emitting element 6, highly accurate examination can be performed. By this constitution, accurate medical treatment can be applied to a patient.
Patent JP-H09196947-A (JP)
Title: Verification device for detector for rotating speed
Inventor: YOSHIDA TADASHI
IPC: G01P21/02
Filed: 1996-01-18
Abstract: PROBLEM TO BE SOLVED: To improve the reliability of measuring data by providing first and second computing means to adjust the distance between a rotating speed signal detector and a gear. SOLUTION: The output voltage of a rotating signal detector 1 at the time when a gear 10 is rotated is subjected to full-wave rectification through a rectifier 4 and is converted into d.c. voltage, and it is inputted to a transfer characteristic computing device 5 (second). At the same time, the rotational cycle signal of a motor 9 is inputted to a peripheral speed computing device 11 (first) from an external speed controller 7, and signal showing a circumferential speed is inputted to the device 5. The device 5 computes the output voltage from the detector 1 per unit circumferential speed, and it outputs the result to a waveform outputting device 6. The rotational cycle signal from the controller 7 and the output voltage per unit circumferential speed from the device 5 are inputted into the device 6.  In addition, a distance between the detector 1 and the gear 10 is adjusted with a micrometer 2. Thus, the output characteristic of the detector 1 during operation of real machine can be grasped securely and the distance therebetween be also adjusted properly, so that the possibility of breakage or trouble of the detector 1 can be eliminated and the realiability of the measured data is improved.
Patent JP-H04248260-A (JP)
Title: Manufacture of lead-acid battery
Inventor: MATSUMURA TOSHIYUKI
IPC: H01M4/22
Filed: 1991-01-24
Abstract: PURPOSE:To shorten curing time to a great extent by applying voltage to each pole plate grid and paste so as to be positive and negative respectively in polarity in a curing process for each pole plate of a lead-acid battery in which lead powder whose degree of oxidation is equal to or more than 75%, is used as active raw material. CONSTITUTION:When each pole plate having sufficient performance through curing in a short time is manufactured, voltage is applied to each pole pate grid and paste so as to be positive and negative respectively in polarity. Namely, positive electrode paste is formed by an usual method by using lead powder whose degree of oxidation is different, the paste thus formed is filled in each grid of a lead battery for a vehicle, it is then cured at a temperature of 50 deg.C and at 98% relative humidity for two hours thereafter, counter electrodes 2 are inserted into each space between the pole pates 1 which are stretched over a frame 3, during curing, and voltage is applied to each pole plate grid and paste so as to be positive and negative respectively in polarity, so that the surface of each grid is thereby oxidized. For example, 1V is applied to a space between each pole plate and each counter electrode 2 while current is limited to 1A. By this constitution, curing time can thereby be shortened, and adhesion between each grid and active material can also be enhanced.
Patent JP-S60150547-A (JP)
Title: Plasma x-ray generator
Inventor: HAI SEKIKI
IPC: H01L21/3065
Filed: 1984-01-18
Abstract: PURPOSE:To obtain a device in which an X-ray permeation window is not damaged and X-rays with high intensity can be efficiently obtained by providing a conical plasma orifice and a charged particle deflection means arranged near the centerl axis of the solid angle of the plasma orifice. CONSTITUTION:The center of the solid angle of a plasma orifice 6 is made to nearly coincide with an X-ray radiation point. The accelerated plasma is focused via the pinch effect, a hot spot 11 with high temperature and high density is formed on the axis near the tip of an anode 1, and soft X-rays are radiated from this hot spot 11 together with ions, electrons, and neutral particles. Although ions, electrons, and neutral particles are discharged together with soft X-rays from portions other than the hot spot 11, these particles discharged from portions other than the hot spot 11 are shielded by the plasma orifice 6 and are prevented from hitting an X-ray permeation window 8. Out of particles radiated from the hot spot 11, charged particles of ions and electrons are bent in orbit by a charged particle deflection means 7 and are prevented from hitting the X-ray permeation window 8.
Patent JP-H04287947-A (JP)
Title: Production of semiconductor device
Inventor: ISHIHARA SEIICHI
IPC: H01L21/316
Filed: 1991-01-24
Abstract: PURPOSE:To implant a same conductivity type ion as a channel stop layer directly below a bird's beak caused by LOCOS by implanting the ion of an oxide resistant element in an oxide resistant film on the part exposed by selective etching. CONSTITUTION:A first SiO2 film 2 is formed on the top of a silicon substrate 1. Then a first polysilicon film 3, an SiNx film 4, a second polysilicon film 5, a second SiO2 film 6 are accumulated. After forming a resist mask 7, boron is ion implanted and a channel stop layer 8 is formed on the substrate 1. The second SiO2 film 6 and the second polysilicon film 5 are selectively etched and the SiNx is exposed. Then, the resist film 7 is removed and nitrogen is ion implanted from the top. Then SiNx films 4 and 4a and the first polysilicon film 3 are anisotropically etched and the first SiO2 film 2 is selectively exposed. Then the second SiO2 film 6 and the second polysilicon film 5 are removed.
Patent JP-H04248381-A (JP)
Title: Circuit for controlling start of direct-wound motor
Inventor: SHIRATANI HIROSHI
IPC: H02P1/18
Filed: 1991-01-24
Abstract: PURPOSE:To provide a circuit for controlling the start of a series motor capable of reducing the starting torque with simple circuit constitution and reduce the starting torque with simpler circuit constitution as compared with the conventional chopper method where a semiconductor switching element is used or the starting method where a starting resistor is used. CONSTITUTION:A field current dividing circuit 20 consisting of a dividing resistor 6 for dividing field current and a dividing switch 5 for control of the current division is connected in series, and is connected in parallel with the field winding 1. Furthermore, a time limiting means 7, which turns on the current dividing switch 5 only for the specified time after the start, is provided, and the field current is divided for a specified time at start to reduce the starting torque.
Patent JP-S63178764-A (JP)
Title: Power supply device
Inventor: SUZUKI KAZUYA
IPC: H02M3/335
Filed: 1987-01-14
Abstract: PURPOSE:To stabilize the action of a control circuit, by obtaining the working power of the control circuit with the voltage drop of the tertiary winding of a transformer and an output current detector. CONSTITUTION:The power supply device of a flyback type is composed of a DC input power source 1, a transformer 2, a switching element 3 and this driving circuit 4, a rectifying/smoothing circuit 5, and the like, and supplies current to a load 8. Besides, the error signal of detection signal or the like from an output current detector 9 and an output voltage detector 10 is fed to the driving circuit 4 from a control circuit 11. In this case, when the voltage of the voltage drop of the output current detector 9 is higher than the voltage of a capacitor 13, then a diode 14 is set in the direction permitting current to flow to the control circuit 11 with the voltage drop of the detector 9. As a result, at the time of short-circuiting the load, power is fed to the control circuit 11 from the detector 9, and is fed from the tertiary winding N3 of the transformer 2 or the detector 9 in the state of steady-state working.
Patent JP-S62165641-A (JP)
Title: Mask for photographic printing
Inventor: TOKUDA KANJI
IPC: G03B27/58
Filed: 1986-01-17
Abstract: PURPOSE:To print a mark on the white edge of a photograph only by superposing an edgeless mask and an edged mask one over the other by providing the edgeless mask which have an opening corresponding to one frame of photographic paper and the edged mask which has the peripheral edge part of an opening covered with a frame an is so fitted that the mask can be superposed on the edgeless mask and removed away from the mask. CONSTITUTION:When an edgeless image is obtained, an opening 24 is held in a hand and drawn down against the attractive force of a magnet 22 to rotate the edged mark 20 around a shaft 18 as shown by an arrow A into a dropped state, so that exposure light 44 passes through the opening 14 to print an edgeless image on photographic paper 12. when an edge image is obtained, the edged mask 20 is rotated around the shaft 18 in the opposite direction from the arrow A and the magnet 22 is attracted to the edged mask 20, so that the exposure light 44 passes through the opening 24 to print an edge image on the photographic paper 12. Consequently, a mark is printed on the white edge of a photograph.
Patent JP-S63176526-A (JP)
Title: Continuous steel wire-formwork for slope and slope-fortifying work
Inventor: SUGIMOTO KAZUHIRO
IPC: E02D17/20
Filed: 1987-01-13
Abstract: PURPOSE:To obtain a beautiful grid frame which can be easily processed and assembled by a method in which an U-shaped continuous steel wire-formwork made of one metal wire is set in a grid form on slope and concrete is placed to form a cast-in-place concrete grid frame. CONSTITUTION:Continuous steel wire-formworks 6a are set bilaterally at intervals in the vertical direction of slope 7. T-shaped anchors are driven into the slope 7 from the inside of the formwork 6a by hooking T-shaped anchors on both ends of an upper horizontal lever 8 and coupled with a trench formwork edge plate 5 on upper both ends of the formworks 6a to fix it to the slope 7. In the same way even for the lateral direction, continuous steel wire- formworks 6b are set in a grid form with the formworks 6a, and a reinforcing plate 14 consisting of joint plates 13 of bent plates 12 with many air holes 11 is set on the joint outside of the formworks 6a and 6b. The plates 13 are coupled with the edge plate 5 by hook 16 and cement mortar is packed into the formworks 6a and 6b and the late 14 and hardened for reinforcement.
Patent JP-S5291207-A (JP)
Title: Interlock circuit for apparatus for automatically testing electric car s
Inventor: IKEDA KOUU
IPC: B60L3/00
Filed: 1976-01-28
Abstract: PURPOSE: To prevent accident by erroneous wiring. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S59133544-A (JP)
Title: Silver halide color photosensitive material
Inventor: SAKAGAMI MEGUMI
IPC: G03C7/26
Filed: 1983-01-20
Abstract: PURPOSE:To improve graininess of high and low density parts by incorporating a specified gallate type compd. and a high-speed reaction type coupler. CONSTITUTION:A silver halide emulsion layer is formed by coating a support with a silver halide emulsion contg. a gallate type compd. of formula I in which R is H or an optionally substd. aliphatic or aromatic or heterocyclic group: and a high-speed reaction type coupler of formulae II-IV in which R11 is optionally substd. alkyl or aryl; R12 is an optional substitute of the benzene ring; (n) is 1 or 2, and when (n) is 2, each of R12 may be the same or different; M is halogen, alkoxy, or aryloxy; and L is a group to be released when the coupler reacts with the oxidized product of an aromatic primary amine developing agent and forms a dye.
Patent JP-S5393453-A (JP)
Title: Defrost device of heat exchanger
Inventor: HATADA TOSHIO
IPC: F25B13/00
Filed: 1977-01-28
Abstract: PURPOSE: To open and close a defrosting electric circuit by using a photoelectric transducer element in a defrosting device suitable for the outdoor heat exchanger of air cooling heat pump type air conditioner. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H01182128-A (JP)
Title: Front and rear wheel driving gear for vehicle
Inventor: SHIBAHATA KOJI
IPC: B60K17/348
Filed: 1988-01-18
Abstract: PURPOSE:To improve the kinetic performance of a four-wheel-drive vehicle by mounting a accelerator which is capable to be changed in speed in the power transmission passage from a main drive wheel differential gear to a driven wheel differential gear. CONSTITUTION:An accelerator 40 capable of being changed in speed is mounted on a thrust shaft 9 placed in the power transmission passage from a main driving wheel differential gear 3 to a driven wheel differential gear 13. When the direct engaging type clutch 30 of the accelerator 40 is turned to the OFF position and an accelerating clutch 50 is turned to the ON position during the low to middle run, for example, the driving power is transmitted via the accelerator 40 to the driven wheel differential gear 13 so that the driving force for the driven wheels is higher than that for the main driving wheels. Consequently, when a load is applied to the hydraulic multiple disk clutch 25 (torque transmission clutch) placed on the side of the external wheels of the driven wheel differential gear 13, the external wheel driving torque of the driven wheels is higher than the internal wheel driving torque, whereby improving the turning performance. On the contrary, in the high speed range, the external wheel driving torque applied to the driven wheels is higher than the internal wheel driving torque so that the driving stability in the high speed range may be enhanced.
Patent JP-2000201772-A (JP)
Title: Electric ottoman device
Inventor: KOGURE MASAAKI
IPC: A47C7/50
Filed: 1999-01-14
Abstract: PROBLEM TO BE SOLVED: To improve safety of a seat by composing the ottoman device equipped on the front end side of a seat cushion by a simple mechanism and covering a space generated at the foot rest position. SOLUTION: An ottoman device 4 constituted of a forward developable ottoman main body 10 and an auxiliary unit 11 forward/rearward movably equipped thereon is housed in almost vertical condition in a housing recess part 2a formed on the front end part of a seat cushion 2. The ottoman main body 10 is held so that the inclination angle is made in an almost horizontal condition being moved forward by a first link mechanism 9 and a second link mechanism 26 is equipped in between a nut 23 to be screwed with a screw shaft 22 and the auxiliary unit 11. The first link mechanism 9 has a front and rear pair of rotary links 9A and 9B on which covers 15A and 15B are equipped for completely covering a space generated in between rotary links 9A in a condition the ottoman main body 10 is on the foot rest.
Patent JP-S62217145-A (JP)
Inventor: DEEBITSUDO WADOROO
IPC: G01N21/68
Filed: 1987-01-16
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-H08204301-A (JP)
Title: Metallic base circuit board and module using it
Inventor: FUKUDA MAKOTO
IPC: H05K1/05
Filed: 1995-01-23
Abstract: PURPOSE: To provide a metallic base circuit board having a low thermal resistance and capacitance and high electrical reliability and a module using the circuit board. CONSTITUTION: A metallic base circuit board uses an insulating adhesive layer made of an adhesive prepared by mixing 50-80vol.% inorganic matter containing 1-80vol.% aluminum oxide or inorganic matter composed of silicon oxide containing 30-80vol.% boron nitride in a resin and curing the resin and has a thermal resistance of <=0.6 deg.C/W and capacitance of <=50pF/cm<2> . A module using this metallic base circuit board has high electrical reliability.