baber/WOPTO huggingface dataset:
Patent JP-H02290185-A (JP)
Title: Vector control method and device for induction motor
Inventor: FUJIMOTO NOBORU
IPC: H02P23/03
Filed: 1989-04-28
Abstract: PURPOSE:To prevent phase deviation between a voltage command and a synchronous carrier wave and prevent the generation of current beat by a method wherein the differential value of the internal phase difference angle of an induction motor is added to a frequency command value while the frequency of the synchronous carrier wave is controlled by the sum. CONSTITUTION:The speed of an induction motor 1 is controlled variably by vector control effected by an inverter circuit 2 while the primary current I1 of the induction motor 1 is detected by a current transformer CT and is inputted into a torque current component detecting means 3. A frequency command in regard to the determination of the frequency of a PWM carrier wave is corrected based on the differential value of the internal phase difference angle command of the induction motor 1. In this case, the differential value is subtracted and/or added only while the phase difference angle command is being changed and, therefore, the phase of the carrier wave is advanced or delayed in appearance in synchronism with the change of the phase difference angle. According to this method, the phase deviation between a voltage command and the carrier wave may be prevented and the frequency of them are retained, whereby the generation of current beat phenomenon may be prevented.
Patent JP-H05283771-A (JP)
Title: Optical pulse generating method
IPC: H01S3/06
Filed: 1992-04-03
Abstract: PURPOSE:To enable optical pulses to be generated by use of a modulator which is easily operable and low in insertion loss by a method wherein light passing through an optical fiber is modulated in polarization, and a laser oscillator is made to operate in a Q-switched manner or a mode-locked manner to generate optical pulses. CONSTITUTION:An excitation light source 2 is made to generate excitation light to excite an erbium-doped fiber 1, excitation light is guided by a fiber coupler 3, optimally polarized through a polarization control element 6 which controls optical wave in plane of polarization, and inputted into a polarization modulator 7. The polarization modulator 7 imposes a stress on an optical fiber 5, and when the stress is made to change with time, light passing through the optical fiber 5 changes in polarization or is modulated in polarization. If a polarized light filter 11 is inserted, only polarized light possessed of a certain plane of polarization can be extracted, so that it functions substantially as an intensity modulator, and consequently an optical fiber laser can be made to operate in a Q-switched manner or a mode-locked manner. A polarized light filter functioning as an intensity modulator is simple in structure and low in insertion loss.
Patent JP-S62267314-A (JP)
Title: Novolak type phenolic resin
Inventor: NAKAMURA MASAYUKI
IPC: C08G8/00
Filed: 1986-05-16
Abstract: PURPOSE:The titled resin, obtained by reacting a phenolic compound with an aldehyde compound in the presence of a catalyst, having a specific number- average molecular weight, specific contents of free phenolic compound and binuclear substances, quick curing and capable of giving cured articles having improved heat resistance, etc. CONSTITUTION:A novolak phenolic resin, obtained by precondensing a phenolic compound consisting of phenol and/or cresol, e.g. o-cresol, etc., with an aldehyde, preferably (para)formaldehyde in the presence of a catalyst, e.g. hydrochloric acid, etc., carrying out circulation treatment using an inert gas, e.g. nitrogen, etc., and/or steam and carrying condensation reaction through dehydration and having 300-500 number-average molecular weight (X) of the resin component after removing free phenolic compounds, <1.0wt%, preferably <=0.5wt% content of free phenolic compounds and content (y) of binuclear components expressed by the formula 0<=y<=-0.04x+26wt%, preferably 0<=y<=-0.02x+13wt%.
Patent JP-H0250933-A (JP)
Title: Ti-al series intermetallic compound containing p and its manufacture
Inventor: HANAMURA TOSHIHIRO
IPC: C22C21/00
Filed: 1989-04-28
Abstract: PURPOSE:To manufacture the title compound having high ductility at ordinary temp. and having high temp. oxidizing resistance by regurating its crystal structure to an L10 type regular structure having specific compsn. contg. P. CONSTITUTION:To improve the high ductility at ordinary temp. and high temp. oxidizing resistance of a Ti-Al series intermetaillic compound suitable for a high temp. heat-resistant material, its structure is regulated to L10 type crystal one constituted of 40 to 50atom% Ti and 60 to 50atom% Al and contg. 100wt. ppm P. The Ti amt. is regulated to the range of 40 to 50atom% in order to obtain the Ti-Al intermetallic compound as a single phase by homogeneous annealing without depositing other phases. By the addition of 100 to 1000wt.ppm, P, stacking fault energy is lowered and twinning organization at the time of plastic deformation is activated to improve the ductility at ordinary temp. and the growth of Ti oxide is stopped to improve the high temp. oxidizing resistance; at this time, P should be uniformly dispersed over the whole of the sample without the generation of segregation. In such a manner, the Ti-Al series inermetallic compound having high ductility at ordinary temp. and furthermore retaining high temp. oxidizing resistance can be obtd.
Patent JP-H09105106-A (JP)
Title: Paving method of water-permeable concrete
Inventor: KOU EKIGEN
IPC: C04B28/02
Filed: 1996-05-01
Abstract: PROBLEM TO BE SOLVED: To carry out pavement on a field such as a roadway, a sidewalk, a cycling way, a parking space, a place, etc. SOLUTION: A water-permeable concrete base layer is paved on a sand filter layer and a crushed-stone base layer paved on the ground so that the percentage of voids after the completion of curing is maintained within 10-20% and the coefficient of permeability reaches 10×10<-2> cm/sec or more. Crushed waste glass, fine crushed stones, cement having strength of 250kg/m<3> -500kg/m<3> , water at the ratio of 25-40% of water/cement(W/C), and a polymer of 10-50% of the weight of cement used based on a solid content of 50% as a reference are mixed, and the mixture is paved on the base layer and solidified. The mixture is cured for one day or more, and the polymer and water are mixed and scattered so as to be permeated to the above-mentioned water-permeable concrete base layer and cured, thus completing pavement.
Patent JP-S5336158-A (JP)
Title: Agc amplifier circuit
Inventor: NAKAKAWARA KIYOUICHI
IPC: H03H7/24
Filed: 1976-09-16
Abstract: PURPOSE: A small number of parts is added to an AGC circuit, so that a large compression factor can be obtained and the fluctuation of the output voltage level due to temperature dependent characteristic of a diode can be reduced. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S63275644-A (JP)
Title: Sheetlike material comprising multicomponent polymer
Inventor: KOMORI SHINJI
IPC: C08J5/18
Filed: 1987-05-06
Abstract: PURPOSE:To obtain the title material lowly tearable, resistant to delamination and excellent in stretchability, tensile strength, tear strength and heat sealability, by extrusion-molding at least two incompatible polymers are once, thereby forming external and internal layers of phases reversal to each other. CONSTITUTION:At least two incompatible polymers A and B with flow initiation temperatures different from each other by at least 10 deg.C, selected from among a polyester, a nylon, an olefin (co)polymer, PVC, a polycarbonate, etc. [e.g., nylon 6 (B) of an MFR of 12 and low-density PE (A) of an MFR of 27] are melt-kneaded at an A to B weight ratio of 25-75/75-25 under a high shear. The obtained molten polymer A/B is discharged from a slit die by using selected temperature conditions of 1+ or -0.15 for, for example, an A to B weight ratio of 50/50, and the obtained sheet is stretched uniaxially or biaxially to obtain the title sheet-like material in which the following external and internal layers of phases reversal to each other are formed. The dispersion state of said internal layer (2) is such that polymer A is a sea component and polymer B is an island component, and the dispersion state of said external layer (1) is such that polymer A is an island component and polymer B is a sea component.
Patent JP-S5735323-A (JP)
Title: Removal of photoresist film
Inventor: YANO HIROSHI
IPC: H01L21/027
Filed: 1980-08-13
Abstract: PURPOSE:To prevent surface of a substrate from a damage and improve electrical characteristics, when removing a photoresist film by turning it into ash, by applying microwave to the film by introducing oxidizing gas without discharging air from a reacting tube in which a substrate covered by a photoresist film is inserted. CONSTITUTION:An Si substrate 2 covered by a photoresist film is set onto a substrate holder 3 and inserted into a reacting tube 1. O2 gas is introduced from a gas introducing tube 4 at a flow rate of 10ltr/min to operate a microwave oscillator 8, and by applying the microwave onto the substrate, the photoresist film is removed from the substrate by being heated and turned into ash. It is possible, by doing so, to eliminate necessity of a vacuum air-exhausting device and improve characteristics of a semiconductor element without causing damage to surface of the substrate.
Patent JP-H04340569-A (JP)
Title: Image forming device
Inventor: KAWANO YUZO
IPC: G03G15/08
Filed: 1991-05-16
Abstract: PURPOSE:To prevent toner scattering from between a developing roller and a 'Mylar(R)' sheet. CONSTITUTION:This device is provided with a developing device 3 which develops an image by attaching toner 6 to an electrostatic latent image formed on a photosensitive body 1, and a doctor blade 9 which performs electrostatic charging so that the toner 6 is attached to have uniform layer thickness on the developing roller 4 in the developing device, and the 'Mylar(R)' sheet 16 disposed between the developing roller 4 and the developing bat of the developing device 3. Both ends of the sheet 16 are supported at two points on the developing bat so that the sheet 16 may by pressed to contact the outer peripheral surface of the roller 4. Therefore, the sheet 16 is allowed to firmly surface- contact with the roller 4 to secure perfect sealing force and the toner scattering from between the sheet 16 and the roller 4 is prevented.
Patent JP-H05306958-A (JP)
Title: Temperature detection circuit
Inventor: OKIGA HIROSHI
IPC: G01K7/00
Filed: 1992-04-30
Abstract: PURPOSE:To enable the objective circuit to detect temperatures with high accuracy without relaying on its manufacturing process by comparing a measured voltage with a reference voltage and, when the former exceeds the latter, outputting a prescribed detection voltage. CONSTITUTION:When a current flows to a transistor(Tr) Q8 through the resistor R4 of an actuation circuit 12, a voltage VBE is generated. The current flows to a Tr Q9 and the Q4 of a band-gap circuit 11 which are turned on by the voltage VBE and the voltage VBE is generated across the Tr Q4. The same current as the constant current I0 flowing through the Tr Q4 flows not only to Trs Q3, Q5, and Q6 which are turned on by the voltage BE, but also to Trs Q1 and Q2. The current I0 flowing through the Tr Q5 flows through a resistor R2 and the measurement voltage Va generated across both ends of the resistor R2 is inputted to the (+) terminal of the comparator 16 of a voltage comparator circuit 13. On the other hand, a reference voltage Vb is generated across the connecting point of the voltage dividing resistors R5 and R6 of the circuit 13 and inputted to the (-) terminal of the comparator 16. When the value of the voltage Vb is made equal to the voltage Va corresponding to a desirable detection temperature T, the output of the comparator becomes 'H' and it can be detected that a measured temperature exceeds the temperature T when the voltage Va becomes Va>Vb.
Patent JP-H047574-A (JP)
Title: Toner cartridge
Inventor: IDO MIKIO
IPC: G03G15/08
Filed: 1990-04-25
Abstract: PURPOSE:To prevent the hands of an operator from being stained with toner and toner from scattering to the periphery by fixing and holding a seal member which is pressed in a 2nd chamber at the seal member holding part in the 2nd chamber. CONSTITUTION:When the toner cartridge 1 is inserted into the entrance 20 of a toner supply part 2 with a 1st opening 7 and a 2nd opening 11 down, a projection part 21 abuts on a 2nd part 19 of the seal member 8 which covers the 2nd opening 11. When the toner cartridge 1 is further inserted into the entrance 20, the 2nd part 19 of the seal member 8 is pressed in the 2nd chamber 10 in an inverted U shape and a 1st part 14 which covers the 1st opening 7 is peeled from the 1st opening 7. Then toner 6 is supplied to a copying machine main body through the 1st opening 7 and a toner supply opening 22. When the projection part 21 is inserted into the 2nd chamber 10 completely, the seal member 8 is peeled completely from the 1st opening 7 and fixed and held at the seal member holding part 23. Consequently, the hands of the operator are not stained and no toner is scattered to the periphery.
Patent JP-H04339914-A (JP)
Title: Construction for column base section
Inventor: NAKAGAWA ATSUSHI
IPC: E02D27/00
Filed: 1991-05-16
Abstract: PURPOSE:To improve the setting strength of column base sections remarkably by fitting joint plates erected on the upper sections of anchor metal fittings, firmly to be set on both the sides of a column lower-section, and by embedding the anchor metal fittings and the lower sections of the joint plates in foundation concrete. CONSTITUTION:Anchor metal fittings 1 formed with a plurality of shape steels projected on the upper surface of a concrete block 2 are arranged on a foundation board 3. After that, steel plates are arranged in parallel with each other, and joint plates 4, 4 assembled together with a connecting plate 5 are erected to be firmly fitted on the upper sections of the anchor metal fittings 1. After that, at the lower end of the square steel pipe A of a rectangular cross-sectional area, a base plate 6 is firmly fitted, and the upper sections of the joint plates 4 are set on both the long side side-surfaces of the lower section of the square steel pipe column A and are firmly fitted with bolts, nuts, and the like. Then, the anchor metal fittings 1 and the lower sections of the joint plates 4 are embedded in foundation concrete B.
Patent JP-H08308010-A (JP)
Title: Pantograph cover
Inventor: TOKANE HIKOHIRO
IPC: B60L5/00
Filed: 1995-05-10
Abstract: PURPOSE: To provide a pantograph cover having excellent electric insulation, a light weight and durable against wind pressure at the time of traveling at a high speed by forming the cover of a sandwiched structure of a low-density core having electric insulation and a skin having air sealability to cover the core and high rigidity. CONSTITUTION: A pantograph cover 1 is formed by laminating a honeycomb core and a plurality of ceramic plates 4 as a structure outer skin for forming a sandwiched structure. Each plate 4 has a rectangular shape, and is so disposed that the long side is disposed perpendicularly to the vertical line for connecting a trolley wire to a vehicle. The cover 1 is so disposed that the joint distance for connecting the top to the bottom of the cover 1 becomes maximum. The joint material is adhesive, is deteriorated in its contamination resistance from that of the plate 4 but in this manner, electric insulation is not deteriorated. Thus, the cover which is light and has excellent insulation and endures against the wind pressure at the time of traveling at a high speed is manufactured.
Patent JP-H11300228-A (JP)
Title: Bag-tearing apparatus
Inventor: MORISHIMA NANSEI
IPC: B02C18/00
Filed: 1998-04-22
Abstract: PROBLEM TO BE SOLVED: To automatically remove collecting bags hooked on a work blade and remaining matter of wastes after bags are torn. SOLUTION: A plurality of work blades 20 arranged at intervals from one another in the direction at right angles to the transportation direction are inserted in a plurality of slits 17a of a base plate 17, the tip blade parts 20a are positioned in the lower side of the base plate 17, and the base end sides are so supported in the upper side of the base plate 17 as to be freely movable in a vertical directions. Wastes W packed in bags and transported by an apron conveyor 1 are brought into contact with blade parts 20a of the respective work blades 20 to push and tear the collecting bags w2. The respective work blades 20 are moved upward by a swinging cylinder 29 to move the blade parts 20a to the respective slits 17a, so that the remaining matter hooked on the blade parts 20a can automatically be shaken down on the apron conveyor 1 by the rim parts of the respective slits 17a.
Patent JP-S5813764-A (JP)
Inventor: GOTOU TOKUKI
IPC: D06B3/04
Filed: 1981-07-16
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-H05308656-A (JP)
Title: Recorder unified with camera
Inventor: SENUMA TOSHITAKA
IPC: H04N9/89
Filed: 1992-04-30
Abstract: PURPOSE:To reduce the power consumption and the cost by simplifying the clock system to reduce the circuit scale. CONSTITUTION:The picked-up image signal from an image pickup element 1 is supplied to the (a) side of a switch 41, and the color video signal from a line input terminal 10 is supplied to the (b) side. The output of the switch 41 is supplied to processing circuits 3 and 4 and a YC separation circuit 12. Outputs of processing circuits 3 and 4 are supplied to the (a) sides of switches 43 and 44, and the output of the separation circuit 12 is supplied to the (b) sides. Outputs Y and C of switches 43 and 44 are supplied to an emphasis circuit 22, a frequency conversion circuit 28, etc., constituting a video processing part to perform the recording processing. A clock CK1 from a generating circuit 9 is supplied to the (a) side of a switch 45, and a clock CK4 from an AFC circuit 30 is supplied to the (b) side. Processing circuits 3 and 4, the YC separation circuit 12, the video processing part, etc., are driven based on an output clock CK of the switch 45. Switches 41 and 43 to 45 are connected to the (a) sides in the camera mode and are connected to the (b) sides in the line input mode.
Patent JP-S592947-A (JP)
Title: Rearward monitor for vehicle
Inventor: TANI MASANORI
IPC: B60R1/00
Filed: 1982-06-29
Abstract: PURPOSE:To enable to maintain a rearward field of vision easily and reliably, by a method wherein an object lens provided on the rear end of a vehicle is connected through optical fiber with a projection lens and a screen on which an image from the projection lens is projected is provided within a car room. CONSTITUTION:A substance in the rear of a vehicle is grasped by an object lens 2b which forcuses the substance into a real image on an end face of optical fiber 3. Then image of the substance transmitting within the optical fiber 3 and arriving at a projection lens 5b is reproduced as the real image on a screen 9 provided within a car room through reflectors 7 and 8 from the projection lens 5b.
Patent JP-S5634439-A (JP)
Title: Two-level mold
Inventor: TAJIMA YUKIO
IPC: B29C45/27
Filed: 1979-08-31
Abstract: PURPOSE:To form a two-level mold wherein the filling of each mold with resin is well balanced, by connecting a sprue to a divergent point toward the runner of each mold and thus equalizing the length of the route to each cavity. CONSTITUTION:A sprue 9 is connected to a divergent point 25 of the runner 6 of the 1st-level mold 2 from the runner 7 of the 2nd level mold 4. By using the above two-level mold, a mold plate 14 on the movable side is moved to a mold plate 13 on the fixed side, thus the 1st-level mold 2 being fitted to the 2nd-level mold 4. Next, thermosetting resin is injected through the sprue 9 and the divergent point 25 and filled up in the 1st- and 2nd-level cavities 1 and 3 through the intermediary of the 1st- and 2nd-level runners 6 and 7, respectively. Then, the mold plate 14 on the movable side being separated from the mold plate 13 on the fixed side, the metal molds 2 and 4 are separated from each other and then the 1st- and 2nd-level knockout plates 22 and 24 are driven, thereby molded articles 16 and 17 obtained being taken out.
Patent JP-S604751-A (JP)
Title: Hot water supplier
Inventor: KITA SHIGEHIRO
IPC: F24H1/24
Filed: 1983-06-21
Abstract: PURPOSE:To contrive to improve the combustion efficiency by a method wherein combustion air is led into a case-shaped baffle body in order to be heated and then fed to a burner. CONSTITUTION:A burner 3 is arranged facing to a combustion part 2 provided in the interior of a water chamber 1 and at the same time a case-shaped baffle body is arranged at the upper part of the combustion part 2. In addition, combustion air is led through a suction pipe 5 in a suction chamber 5a and then sent through an opening 5b to a heating chamber 4b and finally supplied through a supply air pipe 6 to the suction port 3a of the burner 3. The high temperature gas produced by the combustion of the burner 3 passes the gap formed between a water chamber wall 1a and the outer wall 4a of the baffle body 4 and heats the baffle body 4 and the water chamber 1 and then escapes through an exhaust tube 7. Due to the heating action of burner combustion air in the baffle body, the excellent effects such as the prevention of the high temperature thermal deterioration of the baffle body due to the reduction of temperature rise of the baffle body, the prevention of the after-heating which may occur after the stoppage of combustion and the like, are obtained.
Patent JP-H02292884-A (JP)
Title: Semiconductor laser device
Inventor: NISHIMOTO HIROYUKI
IPC: H01S5/00
Filed: 1989-05-02
Abstract: PURPOSE:To effectively concentrate a high frequency current on an active layer to enable a semiconductor laser device of this design to execute a super- high speed modulation by a method wherein a part other than the vicinity of a light emitting region is covered with a high resistance semiconductor layer or the like. CONSTITUTION:An InP high resistance layer 9 is laminated on an N-InP substrate 1, the InP high resistance layer 9 is removed leaving a part of it unremoved so as to expose the N-InP substrate 1 for the formation of an inverted mesa-shaped step. An N-InP buffer layer 2, an InGaAsP active layer 3, a P-InP clad layer 4, and a P-InAsGaP contact layer 5 are successively laminated on the P-InP substrate 1 bringing the ends of them into contact with the inverted mesa-shaped step. The other ends of the InGaAsP active layer 3, the P-InP clad layer 4, and the P-InGaAsP contact layer 5 are etched to form a continuous reverse mesa-shaped step. As the InGaAsP active layer 3 is surrounded with a high resistance semiconductor layer or air, nearly all the signal current injected from a P-side electrode 7 is made to flow through the InGaAsP active layer, and consequently a semiconductor laser device of this design has a structure excellent in response characteristic to high frequency.