baber/WOPTO huggingface dataset:
Patent JP-S63186591-A (JP)
Title: Dc regulator
Inventor: ARUFURETSUDO BAUAA
IPC: H02P7/291
Filed: 1987-12-15
Abstract: A control circuit for adjusting current to a direct current motor that has a free wheeling diode connected in parallel with the armature winding includes a controllable switching element connected in series with the armature winding, a comparator that has a control voltage corresponding to a desired rotational speed of the motor applied to one input of the comparator and an integrating circuit connected to the other input of the comparator. An electronic switch is connected across the integrating circuit, and the output of the comparator controls the controllable switching element and the electronic switch.
Patent JP-H06163951-A (JP)
Title: Optical semiconductor device
Inventor: IWAMA TAKEO
IPC: H01L31/0232
Filed: 1992-11-26
Abstract: PURPOSE:To improve earth reliability of an optical semiconductor module, and exclude damage when the optical semiconductor module or a circuit board side is exchanged, in relation to an optical semiconductor device wherein an optical semiconductor module constituted by optically coupling an optical fiber to an optical semiconductor element, and a circuit board contained in a metal case are assembled. CONSTITUTION:A flange 140 of an optical semiconductor module 100 is provided with a rectangular main body plate part, tongue segments 141 protruding from the right side edge and the left side edge of the main body plate part, and notch parts 142 formed at the linkage parts of the main body plate part and the tongue segments 141. The main body plate part is screwed and fixed to side plates 1B of a metal case 1, and the tongue segments 141 are welded to the side plates 1B.
Patent JP-H11224349-A (JP)
Title: Image processor
Inventor: WATANABE KUNIO
IPC: A63F13/52
Filed: 1998-11-06
Abstract: PROBLEM TO BE SOLVED: To provide an image processor for effectively reproducing an object or character in a state extremely rich in variety such as explosion or smoke. SOLUTION: This image processor is composed of an output device 12, ROM 109 and 111 for storing data consisting of the object expected to serially change its form within prescribed time and processors 101. and 108 for consisting the object of plural sections and executing image processing for providing animation concerning the respective sections so as to display the processing result from these processors onto the output device.
Patent JP-H03177383-A (JP)
Title: Refractory having zirconia coated layer
Inventor: MATSUURA ICHIRO
IPC: C04B41/87
Filed: 1989-12-05
Abstract: PURPOSE:To improve strength and to prevent occurrence of stress, cracking, etc., resulting from heat shrinkage, comprising aggregate having coarse particles and binding fine powder of fine particles, by forming a zirconia coated layer having high voids on the surface of refractory. CONSTITUTION:92-75wt.% aggregate 11 (e.g. zirconia aggregate) composed of coarse particles and 8-25wt.% binding fine powder 12 (e.g. zirconia fine powder) composed of fine particles are blended with a binder and water into a slurried state. Then the slurried raw material is applied to the surface of refractory (e.g. setter), which is dried and calcined to give refractory having a zirconia coated layer 10. Consequently, the aggregate 11 in the zirconia coated layer 10 is supported by mutual contact of the aggregate 11, a great number of the binding fine powder collect at the mutual contact part of the aggregate 11, part of the binding fine powder is sintered and integrated with the aggregate particles to bind the aggregate, structure wherein voids 13 surrounded by the aggregate 11 and the binding fine powder 12 are formed is made so that the refractory has high strength, slightly causes cracking, release, etc., and shows excellent durability.
Patent JP-2001134115-A (JP)
Title: Image forming device
Inventor: TAGAMI AKIRA
IPC: G03G15/16
Filed: 1999-11-08
Abstract: PROBLEM TO BE SOLVED: To provide an image forming device capable of eliminating the occurrence of transfer blurring, transfer defect and transfer dust by making a conductive brush abut on a carrying belt in a condition being pressed to a downstream side in the moving direction of the front surface of the carrying belt by a brush correcting member, thereby stably supplying a transfer electric field. SOLUTION: An electrifying brush 21 is composed of a member having a brush holder 23 and conductive bristles 22 filled in the holder 23. Then, the bristles of the brush 21 are vertically opposed to the back surface of the carrying belt 8 being not in contact with a photoreceptor drum 1 and made to abut on the belt 8 in the condition being pushed down to the downstream side in the moving direction of the back surface of the belt 8 by the brush correcting member 25.
Patent JP-H02162391-A (JP)
Title: Driving method for discharge display panel
Inventor: MURAKAMI HIROSHI
IPC: G09G3/294
Filed: 1988-12-16
Abstract: PURPOSE:To reduce the loss of electric power of the display panel of matrix arrangement which carries on display discharge by repetitive maintenance pulses with a constant period by applying a pulse train which has the same width and interval with the maintenance pulses continuously to a cathode almost throughout a period wherein the display discharge by the maintenance pulses is not carried on. CONSTITUTION:A four-potential waveform is easily generated by utilizing the fine stray capacity between the cathode and ground. For the purpose, a driving circuit is provided with switches SS and SD of a display anode circuit for mainte nance pulse generation, switches SB and SC of a cathode circuit which controls a discharge state and an erasure state, and switches SF and SX which have no direct relation, but are for write discharging. Then the switch SS is turned on only in a short time of rising for erasure and turned off immediately, and the switch SB is turned off continuously at the time of erasure. Consequently, only when the switch SC is turned on, the cathode is clamped to the earth potential, but has high impedance in other periods, so that unnecessary electric power due to the capacity between electrodes is reduced.
Patent JP-H06146462-A (JP)
Title: Large-sized building with large opening/closing roof
Inventor: MAGARA SHIGETAKA
IPC: E04B1/32
Filed: 1992-10-31
Abstract: PURPOSE:To provide a large-sized building equipped with an opening/closing large roof which is comparatively light, which is of a self-balancing structure, and with which the horizontal displacement at each end of a roof framework can be suppressed to zero even though any abnormal external force acts on. CONSTITUTION:A plurality of driving elements which are mobile along a guide path are furnished on the oversurface of a peripheral wall, etc., and a shell-form steel framing 23A in the shape curved upward in the frontal view and a shell- form steel framing 23B in the shape curved downward in the frontal view are coupled together at least at their ends so that a roof framework 23 is formed. At a certain spacing in the large roof moving direction, a plurality of control strings 25 are arranged between the two ends of this roof framework 23, and the two ends of each control string 25 are coupled with the ends of the roof framework 23 so that it is embodied in a structure of self-balance system. The two side ends of the roof framework 23 are supported by the driving elements, and roofing material, etc., is fixed to the framework 23 to constitute an open/ close type large roof. The framework 23 can always maintain the structure of self-balance system by controlling the control strings 25 in accordance with the force acting on the open/close type large roof.
Patent JP-2001136015-A (JP)
Title: Lightning arrestor
Inventor: NAKADA NORIFUMI
IPC: H04M1/738
Filed: 1999-11-08
Abstract: PROBLEM TO BE SOLVED: To provide a lightning arrestor that enables a signal received by a satellite broadcast receiving antenna to be taken in by eliminating the effect of an indirect lightning stroke. SOLUTION: A capacitor C1 is connected between an input plug IN and an output plug OUT, a 1st arrestor AR1 is connected between the input plug IN and the ground, and a 2nd arrestor AR2 is connected between the output plug OUT and the ground. Furthermore, a series connection consisting of a 1st choke CH1 and a 2nd choke CH2 is connected in parallel with the capacitor C1 and a 3rd arrestor AR3 is connected between the ground and the connecting point among them. Thus, an indirect lighting stroke applied to the input plug IN can surely be bypassed to the ground by the arrestors AR1-AR3. Moreover, the 3rd arrestor leads the indirect lighting stroke to the ground and the 1st choke CH1 and the 2nd choke CH2 configure a low pass filter.
Patent JP-H01264163-A (JP)
Title: Pulse-driven metal halide light source
IPC: H01J9/395
Filed: 1988-12-16
Abstract: PURPOSE: To easily manufacture a pulse operated metal halide light source from borosilicate and alkali resistant glass by providing an anode and a cathode, which are arranged in both ends of a light emitting tube made of the translucent glass and which form a gap, and perfectly coating the cathode with metal halide salt. CONSTITUTION: A cylindrical light transmitting radiation chamber 10 is provided, and electrodes 12 opposite to each other, which are partitioned by a tubular part made of thin glass and which are made of tungsten, are sealed in both ends of a chamber 14. The light emitting filler 16 includes plural kinds of metal halide salt, desirably, alkali metal iodide and bromide. A cathode is perfectly coated with the metal halide salt. The metal halide salt is added as the granular or powder filler, and thereafter, it is fused so as to be recrystallized around the cathode. With this structure, alkali resistant glass, which is easy to be worked, is used as a cell material, and the metal halide light source is easily manufactured.
Patent JP-H11150448-A (JP)
Title: Oscillation circuit
Inventor: AKABOSHI HIROYUKI
IPC: H03K5/00
Filed: 1997-11-18
Abstract: PROBLEM TO BE SOLVED: To provide the oscillation circuit of a simple circuit configuration that generates an oscillation signal with a high frequency higher than a fundamental oscillation frequency or over, without greatly changing the circuit configuration. SOLUTION: This oscillation circuit is provided with an oscillation section 10, a comparison section 20 and a multiplier section 30, an on/off state of transistors(TR) Q1, Q2 in the oscillation section 10 is switched alternately, then a capacitive element C1 repeats charging/discharging and an oscillation signal is outputted. A voltage across both the electrodes of the capacitive element C1 is compared by a comparator section 20, which provides the output of a comparison signal depending on the comparison result. The multiplier section 30 obtains an exclusive OR between the comparison signal of the comparator section 20 and the oscillation signal of the oscillation section 10, that is, signals at nodes ND3, ND4 to acquire a signal the frequency of which is twice the fundamental oscillation frequency of the oscillation section 10.  As a result, the oscillation circuit generates the oscillation signal whose frequency is higher than the fundamental oscillation frequency, without revamping the oscillation circuit considerably.
Patent JP-H08172339-A (JP)
Title: Active type filter, active type equalizer and oscillator
Inventor: TSUYAMA ISAO
IPC: H03H11/12
Filed: 1994-12-20
Abstract: PURPOSE: To improve the compatibility of a digital circuit without being influenced by parasitic capacity by generating a current obtained by applying current amplification and integration to a current negatively fed back from an output side to an input current and outputting the generated current as an output current. CONSTITUTION: An output from a 2nd voltage/current conversion circuit 2b is negatively fed back to an input terminal to obtain the transmission function of a primary low pass filter(LPF) between an input signal Ii and an output signal Io. Since capacitor elements 1a, 1b are arranged in parallel between the output terminal of a current amplifier circuit 3a having high impedance and the input terminals of the 1st and 2nd voltage/current conversion circuits 2a, 2b, parasitic capacity between the output terminal of the circuit 3a and the input terminals of the circuits 2a, 2b is parallel with the capacity of the elements 1a, 1b. When the capacity of the elements 1a, 1b is determined while considering the parasitic capacity, the interruption frequency of the LPF can easily be set up to a required value.
Patent JP-H04186727-A (JP)
Title: Discriminating device for end point monitor signal
Inventor: KOMINAMI SHINYA
IPC: H01L21/302
Filed: 1990-11-20
Abstract: PURPOSE:To decrease a threshold value for subsequent end point discrimination by an amount not related to fluctuation of light amount so as to improve end point detecting accuracy by making a rising waveform of a voltage value which is proportional to a light emission amount of desired wavelength coincide with a rising waveform stored in a memory in advance. CONSTITUTION:Only light of desired wavelength is taken out through an interference filter 2 among plasma light generated from start to end of a reaction process in a chamber 1, and a change in its light amount is converted into current by a photo diode 3 and further converted into voltage by an amplifier 4. A CPU 5 varies set values of a D/A converter 6 and a programmable amplifier 8 so that an output waveform coincides with rise approximation of a light amount waveform which has been stored in a memory 9 in advance, and after the output value is made coincide, the CPU 5 fixes the set values. Then after a peak value and a level value of the light amount waveform are checked, a terminal point of the process reaction is detected when the waveform enters a threshold value of a pre-specified end point, so that detection accuracy can be improved irrespective of a fluctuation in the light amount.
Patent JP-H04189679-A (JP)
Title: Rear wheel steering device
Inventor: MOMIYAMA FUJIO
IPC: B62D5/087
Filed: 1990-11-26
Abstract: PURPOSE:To improve the responsiveness of rear wheel steering to front wheel steering by changing a spool of a hydraulic changing valve to be actuated by a main pulley which moves to rotate right and left by linear slide of a control arm through a belt by rotation of the belt. CONSTITUTION:A back rear wheel 4 having a steering device is steered by a power cylinder 5 for steering a rear wheel, and a steering angle of the steering wheel 4 is controlled by a change of a hydraulic changing valve 6. In this case, a main pulley 30 to rotate right and left by linear slide of a control arm 22 is provided close to the rear wheel steering controlling device 8. Both ends of a belt applied around the main pulley 30 are put on idler pulleys 32, 33 to be connected with both ends of a spool 6a of the hydraulic changing valve 6. The spool 6a of the hydraulic changing valve 6 is thus actuated through a belt 7 by rotation of the main pulley 30 based on an oscillation inclinating angle of the control arm 22, and the steering angle is given by the power cylinder 5 for steering the rear wheel.
Patent JP-H02163502-A (JP)
Title: Actuator drive hydraulic circuit
Inventor: SHIBAHATA KOJI
IPC: F15B11/04
Filed: 1988-12-16
Abstract: PURPOSE:To keep oil under low viscosity condition so as to increase responsiveness by providing a hydraulic actuator operated according to hydraulic pressure in an operation chamber and flow control means capable of adjusting oil quantity passing through a restriction provided at a discharge oil passage. CONSTITUTION:A multiple disc clutch 15 restricts differential motion by moving a piston 25 outwards according to hydraulic pressure in an operation chamber 27 to make an inner plate 19 contact with an outer plate 20 frictionally so as to connect a drum case 18 with an output shaft 14. Pressurized oil discharged from an pump 31 is returned to a reservoir tank 33 via a supply pipe 32, an inlet port 29, the operation chamber 27, an outlet port 30 and a discharged pipe 35 and is circulated like this. The back pressure of a restriction 34 is varied to drive hydraulic actuators 28R, 28L. Thus, the oil in a circuit can be kept under a high temperature and low viscosity condition to obtain high responsiveness.
Patent JP-2001135287-A (JP)
Title: Battery pack and motor-driven tool
Inventor: SATO KAZUMI
IPC: H01M2/10
Filed: 1999-11-09
Abstract: PROBLEM TO BE SOLVED: To provide a cover structure of battery pack having a simple structure that prevents plural unit batteries housed in a container from temperature rise and temperature fluctuation, and that is constructed to protect electrode lead terminals from external shock or others. SOLUTION: This pack and tool store plural unit batteries 1 forming a set battery arranged between inner wall 21 and outer wall 22 forming a pair of loops, and together provides a conduit type container 2, making a space enclosed with the inner wall as a cavity 29 with open ends at its top and bottom, and a closure body 4 provided by closing the upper opening of the conduit container, having an opening that communicates with the cavity, and gives a structure that makes electrode lead terminals hardly touch from the outside as well as protects the lead terminals from external shock in particular, by providing lead terminals 31 and 32 that head out electrode leads of the set battery to make then connectable externally at an inner peripheral region facing the cavity portion of the closure body.
Patent JP-H05156917-A (JP)
Title: Four-cycle engine
Inventor: KURATA KOJI
IPC: F01M13/04
Filed: 1991-12-02
Abstract: PURPOSE:To perform satisfactorily lubrication between a cam of a cam shaft and a cam slipper part of a rocker arm by forming oil passages for flowing lubricating oil into a cam shaft of a valve system, and providing oil guide parts extending in a direction of the cam between the cam shaft and a cylinder head member. CONSTITUTION:Oil passages 47, 50 are formed for flowing lubricating oil into a cam shaft 29 of a valve system. Oil guide parts 51, 52 are extending in a direction of the cam are arranged between the cam shaft and a cylinder head member 13. The lubricating oil scattered from the oil passages is struck against the oil guide parts 51, 52 and introduced to the cam. A cam shaft driving chamber which houses cam shaft driving systems 31, 34 is communicated with a rocker arm housing chamber 59 which is provided on the cylinder head member 13 and houses rocker arms 27A, 27B. A breezer chamber is formed on a cover member separate from a ground horizontal line, among tappet adjusting cover members.
Patent JP-H04199242-A (JP)
Title: Cache storage device
Inventor: HATTORI TOSHIYUKI
IPC: G06F12/08
Filed: 1990-11-26
Abstract: PURPOSE:To eliminate the need of making one request even when a readout and write requests are simultaneously issued by providing two address arrays. CONSTITUTION:The 1st and 2nd address arrays (AA1 and AA2) 2 and 3 are memories for storing addresses of data blocks of a cache storage device in a main storage device. Thus the two sets of address arrays are provided to the cache storage device so that references can be made simultaneously for reading out and writing. In addition, the data arrays 2 and 3 are respectively divided into real address levels '0' and '1'. Therefore, reading-out and writing operations to the cache storage device can be executed simultaneously when the levels of the data arrays are different from each other.
Patent JP-H05184605-A (JP)
Title: Dental floss
Inventor: AOYANAGI SHIGEO
IPC: A61C15/04
Filed: 1991-12-02
Abstract: PURPOSE:To provide a dental floss having sufficient fiber strength and durability for removing bacterial plaque. CONSTITUTION:This dental floss is composed of hollow yarn monofilaments with 200-1000mum outside diameter and 150-800mum inside diameter formed of high polymer films. This dental floss is sufficient in its durability and can be used effectively for prophylaxis of dental caries and periodontitis.
Patent JP-H01193713-A (JP)
Title: Spectacles for computer terminal equipment operation
Inventor: SUGIMOTO HARUE
IPC: G02C7/16
Filed: 1988-12-19
Abstract: PURPOSE:To use the spectacles almost in the state of natural light by supporting colored lenses where they face the eyes when the spectacles are put on and providing transparent plate successively below the colored lenses. CONSTITUTION:The colored lenses 2 are supported by supporting bodies 4 and 5 which engage with the ears and head part in front of the eyes at a longer distance from the eyes than the lenses of normal spectacles, and the transparent plates 3 which are curved so as to come close to the face are provided successively below the colored lenses 2. Therefore, light from a screen reaches the eyes through the colored lenses 2, so the light is softened and never stimulates the eyes too much. When the eyes are lowered to see a keyboard or document, the colored lenses 2 are not within the visual field and it can be seen through only the transparent plates 3. Consequently, even when the display screen, and keyboard and document are seen repeatedly in a short time, they can be seen with proper brightness, so work is finished accurately and speedily without the eye fatigue.
Patent JP-2000145404-A (JP)
Title: Moisture scattering prevention structure of steam turbine
Inventor: ISHIBASHI KOJI
IPC: F01D9/02
Filed: 1998-11-10
Abstract: PROBLEM TO BE SOLVED: To reliably discharge a film of water flowing along the blade surface of a stator blade toward the outside of a steam passage, by disposing a plurality of slits on the blade surface of a stator blade of a steam turbine, which are inclined in the direction of the blade length from the rear edge of the stator blade toward the front edge thereof. SOLUTION: A stator blade 3 has a plurality of moisture induction slits 9 which are inclined in the direction of the blade length from a rear edge 8 of the stator blade 3 toward the front edge thereof and extended onto an inner wall 10 of an outer ring 2. The moisture induction slits 9 are formed on the front and back surfaces of the stator blade 3. With this configuration, before a film of water adhering onto the blade surface of the stator blade 3 and flowing down reaches the rear edge 8 and scatters, it is possible to induce the film of water to the inner wall 10 on the front-end side of the blade. Further, since a plurality of moisture induction slits 9 are formed, it is possible to capture drain spilling from a first slit with the next slit and guide the drain to the inner wall 10.  After reaching the inner wall 10, the drain 11 flows down to a perimeter-direction slit 7 due to the flow of steam, is discharged to an annular groove 12 which is outside a turbine passage, and is then discharged from a hole 13 to a low-pressure side, for example, to a steam condenser.
Patent JP-H0726842-A (JP)
Title: Heat insulating sash
Inventor: YOKOYAMA KAZUYOSHI
IPC: E06B3/26
Filed: 1992-11-27
Abstract: PURPOSE:To prevent condensation in a room and deterioration of heat insulating efficiency by eliminating an element exposed to an indoor side or by eliminating heat transmission of heat and cold to the indoor side and to provide an heat insulating sash having meeting style construction not bringing about a large-sized crescent. CONSTITUTION:An inside cover material 50 covering an element 52 exposed to an indoor side of an external member is provided, and an outside cover material 70 covering an element exposed to the outside of an internal member is provided. A back board 40 for mounting a crescent 33 is fixed to the inside member 31b, it is extended to the outside member 31a from the inside member 31b so that heat transmission is not made from the outside member 31a, and a pedestal 33a of the crescent 33 is mounted to the back board 40.