baber/WOPTO huggingface dataset:
Patent JP-H04265004-A (JP)
Title: Apd bias voltage control circuit
Inventor: FUKUSHIMA SHIYOUYA
IPC: H01L21/329
Filed: 1991-02-20
Abstract: PURPOSE:To eliminate the limit of a maximum light receiving level in an APD by connecting the output of a high voltage generating circuit to the collector of a second transistor, and connecting in parallel an emitter follower circuit for deviding the output voltage of the high voltage generating circuit and setting it as its base voltage. CONSTITUTION:The output voltage of a high voltage generating circuit 1 is connected to the collector of a transistor 2, and the base of the transistor 2 is connected to a circuit for dividing the output voltage of the circuit 1 by resistors 3, 4. Also, the output voltage of the circuit 1 is connected to the collector of a transistor 6 through a resistor 5, and the base of the transistor 6 is connected to the output terminal of a level converting circuit 7. Subsequently, each emitter of the transistor 2, 6 is connected mutually, and it is connected to an APD 8. According to this constitution, an optical input level from an optical fiber transmission line 13 becomes high, and even if an APD current is increased, a necessary current can be supplied to the APD, and the limit of the maximum light receiving level by the APD can be eliminated.
Patent JP-H06237915-A (JP)
Title: Oxygen emphasized imaging method by mr
Inventor: KURISU MIZUMOTO
IPC: G01R33/48
Filed: 1993-02-16
Abstract: PURPOSE:To provide an oxygen emphasized imaging method by MR capable of forming a satisfactory oxygen emphasized image by exactly catching the fine change in magnetization. CONSTITUTION:This oxygen emphasized imaging method by MR applies a pulse sequence A of an ME-FAST method to form the images of an FID echo Ef and an up stream echo Eu within repetition time TR, the data of the up stream echo Eu are collected concerning the two states of a state, in which an observed part comparatively actively moves, and a state that it does not comparatively actively moves, two images are reconstituted based on the data of the up stream echo Eu in the respective states, and the oxygen emphasized echo is obtained by subtracting those images. Thus, since the image is obtained based on the data of the up stream echo extremely sensitive to the fine change of magnetization, the satisfactory oxygen emphasized image can be obtained.
Patent JP-S61186190-A (JP)
Title: Composite filter rod for building up by welding
Inventor: HIRAISHI HISASHI
IPC: B23K35/02
Filed: 1985-02-13
Abstract: PURPOSE:To improve the durability and stability of a rolling roll, etc. by sintering a powder mixture composed of metallic powder consisting of Cr-Fe, etc. and ceramic powder and forming a filler rod thereof. CONSTITUTION:The fine powder mixture is manufactured by mixing uniformly the heat resistant metallic powder consisting of Cr-Fe or Cr-Ni-Mo-Co, etc. and the ceramic powder consisting of carbide, nitride, etc. The powder mixture is then sintered under and at the prescribed pressurizing force and sintering temp. to form the composite filler rod. The rolling roll or the like is subjected to build-up welding by TIG welding, etc. using such filler rod to form the build-up layer on the surface of the roll, etc. Since the build-up layer is welded and united to the boundary with the base material, the adhesive strength thereof is improved. The durability and stability of the roll, etc. by the above-mentioned method are thus improved.
Patent JP-H06220893-A (JP)
Title: Hydraulic circuit for construction machine
Inventor: TONO MASAAKI
IPC: F15B11/00
Filed: 1993-01-20
Abstract: PURPOSE:To facilitate the attachment of a hydraulic crusher lay selecting and setting a working machine replaceably attached to a working attachment, by attaching a pilot shut-off valve to the outer periphery of a boom, and by connecting a main pressure circuit with the working machine through the intermediary of a logic valve and a pipe line. CONSTITUTION:A working machine replaceably attached to a working attachment 4', is selected and set to a working machine such as a crusher 11 in which the hydraulic flowing direction is limited to one, and a logic valve 12 and a pilot shut-off valve 13 are attached to the outer peripheral part of a boom, and accordingly, a main pressure circuit 31 is communicated with an inlet port 28 of the crusher 11. Next, when the crusher 11 is operated, the hydraulic remote control valve 25 is operated in a direction of the arrow (a), a pilot pressure from a pilot pump 24 is applied to pilot ports 40, 42 so as to change over the position of hydraulic passages in a cut valve and a shut-off valve 13, respectively. Then, main hydraulic oil is fed into a crusher 11 from a first pump 22 through the intermediary of an inlet port 28 so as to operate the crusher 111.
Patent JP-H0571649-A (JP)
Title: Double-seal type biplane valve
Inventor: GOTO TAKAYUKI
IPC: F16K1/226
Filed: 1991-02-20
Abstract: PURPOSE:To prolong the service life of sheet packing as well as to reduce the capacity of a driver for a valve element. CONSTITUTION:Two identical valve plates 4, being attached with sheet packing 6b on the outer circumference and installed in parallel with each other in holding a valve stem 2 between, are engaged with respective valve seats 10a, 10b via the sheet packing 6b while two valve plates 4a, 4b of a double-seal type biplane valve, rotating with the valve stem 2 as the center and opening in one direction alone, are constituted in decentering them to linear symmetry centering on the valve stem 2 as making the opening side outward with each other together with respective these valve seats 10a, 10b.
Patent JP-H11123713-A (JP)
Title: Ready mixed concrete quality keeping and fixing prevention method in agitator, and its device
Inventor: SAKAMOTO NORIO
IPC: B28C7/00
Filed: 1998-01-22
Abstract: PROBLEM TO BE SOLVED: To provide a method for introducing cold air or hot air into an agitator to be affected by an atmospheric temperature, keeping the ready mixed concrete temperature in a set temperature area, delaying the curing time while keeping the quality of ready mixed concrete, introducing cold air into the agitator after discharging the ready mixed concrete and removing the adherence of residual ready mixed concrete, and also provide a device for carrying out the method. SOLUTION: Cold air is introduced continuously into ready mixed concrete in a ready mixed concrete agitator 3 when the atmospheric temperature is high, while dehumidified hot air is introduced continuously when the atmospheric temperature is low to keep the ready mixed concrete temperature in a set temperature area, and the curing time is delayed while keeping the quality of ready mixed concrete, and after the ready mixed concrete is discharged, cold air is introduced into an agitator to remove the adherence of residual ready mixed concrete.
Patent JP-S54119900-A (JP)
Title: Display method of electrochromic display element
Inventor: MATSUMOTO SHIYOUICHI
IPC: G09F9/00
Filed: 1978-03-10
Abstract: PURPOSE: To enable required display ability for a long time, without injuring the coloring reversibility of element, by performing the display with intermittent voltage application, in displaying the specified items fixedly.  
     CONSTITUTION: Between the substrates 2 providing the transparent electrode 1 consisting of SnO 2  thin film, the EC thin film 3 consisting of WO 3  and the sulfuric acid -glycerol -titanium oxide system electrolyte layer 4 are provided, producing EC element. A 2 volts of voltage is fed to this for 2 seconds, producing coloring at the cathode, and after keeping coloring state for 8 seconds with the memory function, erasing is made by applying erase voltage 4 volts for one second, and after one second, the similar operations are repeated. Even after repeating this by 10 6 , no change is observed to the contrast and no stain can be recognized. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S59153464-A (JP)
Title: Load equilibrating method for 2-phase power source
Inventor: ARAI KOUICHI
IPC: H02M5/14
Filed: 1983-02-18
Abstract: PURPOSE:To inexpensively and simply approach loads of a 2-phase power source in equilibrium by altering the phase of a voltage applied to a phase adjuster in response to the unequilibrium state of the loads. CONSTITUTION:Switches 15, 16 are provided, and coils 9a, 9b, i.e., phases T, M of 2-phase power source 11 and a capacitor 17 are connected in series through the both switches 15, 16. When the loads of the both phases are equilibrated, the switching piece 16d of the switch 16 is connected to a contact 16c to isolate the capacitor 17 from the both phases. The connecting polarity of the both phases in a series circuit of the phases T, M of the 2-phase power sources and the capacitor 17 are selected by the switches 15, 16 in reponse to the unequilibrium state of the loads, the phase of the voltage applied to the capacitor 17 is altered to equilibrate the loads.
Patent JP-S54118233-A (JP)
Title: Piezoelectric speaker
Inventor: TSUBOI KOUICHI
IPC: H04R17/00
Filed: 1978-03-06
Abstract: PURPOSE:To obtain a speaker having the vibrators which are strong to impact and are high in sensitivity even with slight input by disposing a metal plate having corrugations between the plate form elements polarized in the thickness direction. CONSTITUTION:Disc-form piezoelectric elements 1, 2 are polarised in the same array in their thickness direction. A disc form metal plate 3 having corrugations is held inserted between these piezoelectric elements 1, 2. When an electric input signal is applied to these piezoelectric elements 1, 2, the piezoelectric elements produce elongation or contraction distortion in the direction of A or B, at which time the metal plate 3 actuates in correspondence to this elongation or contraction. Since the vibrators elongate or contract only in the lengthwise direction in this way, no undue force is exerted, hence the speaker which is strong to external impact and is of high sensitivity may be obtained.
Patent JP-H02205900-A (JP)
Title: Speaker collating system
Inventor: UCHIYAMA HIROKI
IPC: G10L15/00
Filed: 1989-02-06
Abstract: PURPOSE:To efficiently convert a personal feature quantity by dividing voice to plural blocks and obtaining a vector set from an average spectrum calculated for each block and using this vector set to project the average spectrum on a discrimination space. CONSTITUTION:The first order moment or the like of the spectrum of each frame is used to divide a voice section to plural blocks by a block division processing part 4. The feature quantity of a speaker in each block is calculated by a feature quantity generating part 5. The average spectrum calculated for each block in relation to the spectrum is projected on the discrimination space with a coefficient preliminarily obtained by analysis in the canonical discrimination method, thereby obtaining this feature quantity. Thus, the feature quantity is efficiently converted and the personal feature quantity is compressed.
Patent JP-S57141624-A (JP)
Title: Shutter blade for camera
Inventor: OOTANI TOSHIYUKI
IPC: G03B9/00
Filed: 1981-02-26
Abstract: PURPOSE:To obtain a shutter blade for a camera while improving workability and providing the sufficient property of cutting off light by laminating metallic foil on the surface of a plastic sheet and by covering its surface with a lubricant black organic film. CONSTITUTION:On the surface of a plastic sheet or film of polyester, etc., metallic foil of nickel, chronium, etc., is laminated in a thermal press-contacting method through an adhesive of epoxy, etc. Then, this surface is coated with black organic paint which contains a dispersed lubricity providing agent, thus forming a reflection preventing film. This material is used to form blade of a focal plane shutter. Those shutter blade are used effectively for, specially, an electromagnetically driven shutter.
Patent JP-H05194078-A (JP)
Title: Apparatus for pulling up silicon single crystal
Inventor: KONNO SHOICHI
IPC: C30B29/06
Filed: 1992-01-17
Abstract: PURPOSE:To suppress the growth of facet and improve the distribution of resistivity in the cross section of a silicon single crystal. CONSTITUTION:The objective apparatus for the pulling-up of a silicon single crystal is provided with a quartz crucible 11 for holding molten silicon 12, a pulling mechanism 14 for pulling up a silicon single crystal rod 13 from the molten silicon 12 and a screen 15 covering exclusively the lower end of the silicon single crystal rod 13 pulled up with the pulling mechanism 14. Since the upper part of the silicon single crystal rod 13 is not covered by the screen 15, the grown crystal at the upper part of the rod is heated by the radiant heat from the whole liquid surface in the quartz crucible 11 to keep the temperature of the growing interface at a high temperature. The facet growth on the pulled-up silicon single crystal rod 13 is suppressed and the distribution of resistivity in the cross section is improved by this process.
Patent JP-S63196047-A (JP)
Title: Resin coating system for electronic component
Inventor: KAMEZAKI HIROSHI
IPC: H01L21/56
Filed: 1987-02-10
Abstract: PURPOSE:To form a resin coated layer in specified thickness subject to no inner bubbling etc., at all by a method wherein multiple resin solution vessels in different concentration are arrayed firstly to dip a work into the resin solution vessel in the lowest concentration and then into the higher concentration. CONSTITUTION:Multiple resin solution vessels 10a-10c containing resin solution in respectively different concentration are arrayed to dip a substrate part 1a of electronic parts 2 in the resin solution vessel in the lowest concentration among the vessels 10a-10c later dipping the same 1a in the resin solution vessel in higher concentration to form a resin coated layer 3 on the surface thereof. Through these procedures, the work can be coated with resin very smoothly and efficiently subject to no inner bubbling etc., at all.
Patent JP-S58171235-A (JP)
Title: Tool pot for tool storing magazine
Inventor: YUASA AKIHIKO
IPC: B23Q3/155
Filed: 1983-02-21
Abstract: PURPOSE:To reduce a stroke for attachment and detachment of a tool, by making a substance provided with a U-letter groove connectable with the tool and a coming off prevention device into a tool pot for a tool storing magazine. CONSTITUTION:U-letter grooves 113 and 116 connectable with a taper shank 92 and a pull stud 91 of a tool 90 are provided on an upper protorusion 112 and a lower protrusion 115 of a main body 110 of a U-shaped tool pot. The inside of the upper U-letter groove 113 is provided with a pole plunger 114, which forms a coming off prevention device for an occasion when the tool is set. A guide roller 118 touching a guide plate of a tool magazine is provided on the main body 110, which can revolve on the magazine. As attachment and detachment of the tool can be done by a stroke in a right angle direction with an axial line of the tool and the stroke can be reduced by doing like this, a tool exchanger can be simplified.
Patent JP-H09216273-A (JP)
Title: Production of thermoplastic resin foamed sheet having skin layer
Inventor: USAMI KATSUYUKI
IPC: B29C48/305
Filed: 1996-02-15
Abstract: PROBLEM TO BE SOLVED: To produce a thermoplastic resin foamed sheet having a skin layer by using an extrusion molding apparatus simple in a structure. SOLUTION: In this method for producing a thermoplastic resin foamed sheet having a skin layer by extruding an expansible thermoplastic resin from a die and cooling and shaping the extrudate by the cooling plates 2, 2' having two upper and rear cooling surfaces provided to the leading end of the die, two upper and rear cooling surfaces of the cooling plates 2, 2' is opened forwardly at an open angle of 5-35 deg. and the temp. of cooling surfaces 5, 6 of the cooling plates is set to 20-100 deg.C.
Patent JP-H06237810-A (JP)
Title: Manufacturing method of frame structure for fan
Inventor: OZAKI KOZO
IPC: C08L101/16
Filed: 1993-02-17
Abstract: PURPOSE:To shorten the required time to manufacture a fan frame made of biodegradable polymer in the manufacturing method of a frame structure for a fan in which a group of branch bones is radially extended from the end of a handle or a handle mounting part. CONSTITUTION:A frame body 1 has a structure that each branch bone 13 is extended from a handle 2 or a frame body 11 to which a handle mounting part is connected, the branch bones 13 and a connecting piece 14 at a tips of the branch bone group 13 are integrally connected, the cross section of each branch bone 13 has a shape which gradually becomes flatter and wider from the tip to the connecting part, and the plan view shape of the branch 13 is designed comparatively large. This frame body is made easily manufactured by an injection molding with a biodegradable polymer.
Patent JP-S54120254-A (JP)
Title: Welding method for obtaining uniform height of bead
Inventor: IKEDA HIDEO
IPC: B23K9/12
Filed: 1978-03-13
Abstract: PURPOSE: To reduce the cost and to improve the quality of weld zone, without carrying out the  complicated control of the conventional method, by comparing the detecting signal, for the distance between the surface of parent metal and the torch, with the reference signal, and by varying  the welding speed and the flow rate of shielding gas.   
     CONSTITUTION: This method is constituted of the conventional stick out controlling mechanism  being added with the following block diagram. The height H 2  from the surface L 1  of the parent  metal 20 to the distance detector 12 (or the torch 1) is detected by this detector 12, and is converted into voltage by the voltage converter 13; this voltage signal and the voltage signal from the  voltage generator 15 for the reference distance, are compared by the comparator 14; the resulted  difference signal is transmitted to the controller 16 for the welding work condition; this controller  16 controls the welding speed and the flow rate of the shielding gas respectively through the welding propelling portion 18 and the gas shielding portion 17; and when the torch 1 is to collide with  the parent metal surface L 1 , the torch 1 is stopped through the emergency stop portion 19. As a  result, the height of beads becomes constant, the complicated control of the conventional method  becomes unnecessary, and the cost is reduced. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S57142407-A (JP)
Title: Combustion cylinder of oil burner
Inventor: NAKAMURA KAZUHARU
IPC: F23D3/22
Filed: 1981-02-26
Abstract: PURPOSE:To make it possible to restore quickly a combustion state of flame weakened due to  a sudden gust of wind by a method wherein in case the titled cylinder having a number of  throughholes drilled in its inner combustion cylinder or intermediate combustion cylinder, small holes of diameters smaller than those of the throughholes are provided among all or  some of the throughholes. CONSTITUTION:A number of throughholes 2' and 3' are drilled in the inner combustion cylinder 2 or the intermediate cylinder 3 forming part of the combustion cylinder 1 and the small  holes 2'' and 3'' each having a diameter small than that of each of the throughholes 2' and 3'  are drilled among all or some of the throughholes. Thus, when a combustion wick held within  the combustion cylinder 1 is ignited and burned under a normal combustion condition while  combustion air is supplied through the throughholes 2' and 3' and when the power of combustion flame is weakened due to impact or a sudden gust of wind, the quantity of the combustion air flowing through the small holes 2'' and 3'' is reduced to an excessive degree as the  combustion air is subjected to a flow resistance greater than that to which it is subjected at  the time of passing through the throughholes 2' and 3'. As a result, no temperature drop takes  place in the combustion cylinder 1 or result, no temperature drop takes place in the combustion cylinder 1 or the upper portion of the combustion wick so that the amount of combustion  increases gradually and the combustion flame rises high to return to its normal condition.
Patent JP-S57142433-A (JP)
Title: Ventilating system for roof space
Inventor: OOSHITA KAZUYOSHI
IPC: F24F7/10
Filed: 1981-02-27
Abstract: PURPOSE:To make it possible to ventilate the roof space quickly by making use of a wind blowing outside a house by a method wherein an exhaust air control box and a sucked air control box are provided in the upper and the lower portions, respectively of the roof space in the house and each of the control boxes is made to communicate with eave vent ports through ducts. CONSTITUTION:The exhaust and sucked air control boxes 2 and 1 are provided in the upper and the lower portions, respectively, of the roof space 19 in such a manner that the boxes 2 and 1 communicate with the eave vent ports 7, 10 and 8,9 through the ducts 3,4 and 5,6, respectively. Further, the control box 1 is provided with check valves 22 and 23 for allowing only air flowing from the ducts 5 and 6 toward the box to pass therethrough and the control box 2 is provided with check valves opening in the direction reverse to the opening direction of the check valves 22 and 23. Consequently, the open air flowing in the direction of the arrow in summer can be introduced into the roof space 19 from the control box 1 while hot air in the space 19 can be sucked from the control box 2 and discharged from the eave vent ports 10 to thereby ventilate the roof space 19.
Patent JP-S59153465-A (JP)
Title: Dc power source
Inventor: GOINO YOUICHI
IPC: H02M7/06
Filed: 1983-02-21
Abstract: PURPOSE:To suppress the jumping of the terminal voltage of a capacitor when an output terminal is sparked by connecting the capacitor in series with the primary winding of a trnasformer. CONSTITUTION:A capacitor 7 is connected in series with the primary winding of a transformer 2, and the delay current of the reactance of a power source system and a DC power source is compensated by the leading current of the capacitor 7. A rectifier 3 is connected to the secondary winding of the transformer 2, and a smoothing capacitor 4 is connected to the output side of the rectifier 3.
Patent JP-S56124511-A (JP)
Title: Air conditioning device for automobile
Inventor: NAKAMURA KOUJI
IPC: B60H1/00
Filed: 1980-03-07
Abstract: PURPOSE:To simplify te construction and to reduce the manufacturing cost by providing an actuator which operates three doors, that are a defrosting door, a room heating door and a ventilation door mounted within a heater unit. CONSTITUTION:A defrosting duct 19, a floor heating duct 20 and an instrument panel duct 22 within the heater unit 3 are provided respectively with the defrosting door 23, room heating door 24 and ventilation door 25. These three doors 23 to 25 are controlled by the shift actuator 20 to open respectively to a certain angle. In more detail, a main linkage 34 is made to rotate around a pin 33 by the operation of the shift actuator 29, and three follower linkages 48, 53 and 58 engaging with the main linkage 34 actuate the respective doors to rotate in the opening direction. Thus the air distribution into the passenger compartment is properly controlled.