baber/WOPTO huggingface dataset:
Patent JP-H02273943-A (JP)
Title: Manufacture of hetero structure field effect transistor
Inventor: FUJISHIRO HIRONORI
IPC: H01L21/203
Filed: 1989-04-17
Abstract: PURPOSE:To easily control threshold voltage by introducing a specified amount of impurity to set the threshold voltage of a transistor at a specified value into a specified region of a carrier supply layer, and performing annealing process after introducing. CONSTITUTION:On a GaAs substrate 31, an undoped GaAs layer 33 is formed. A lamination part 39 has the following in order on the upper side of the undoped layer 33: an undoped AlGaAs layer 35, an InyGa1-yAs layer 37, and an undoped AlGaAs layer 35. A carrier supply layer 41 containing at least one unit of the lamination part 39 is formed. In a specified region of the carrier supply layer 41, a specified amount of impurity 45 to set the threshold voltage of a transistor at a specified value is introduced, and annealing is performed after the impurity 45 is introduced. That is, the threshold voltage of a transistor formed in the region of the carrier supply layer 41 where the impurity is introduced has a value corresponding with the amount of impurity introduced in the region. Thus the threshold voltage is easily controlled by the introducing amount of impurity.
Patent JP-S5622584-A (JP)
Title: Self-excited inverter circuit
Inventor: KAZUTOMO SHIGEAKI
IPC: H02M7/538
Filed: 1979-07-30
Abstract: PURPOSE:To control voltage by simple constitution by a system wherein one portion of the two stage output of two switching circuits alternatively conducted is fed back to a saturable transformer, mean value rectifying output is inputted to a control circuit, and a conducting period of the switching circuit at the high output side is controlled. CONSTITUTION:The conducting periods t1, t2 of the first and second switching circuits 15, 16 are alternated, the output of the two stages of E21 voltage and E22 lower than the E21 is each obtained from a high-frequency transformer T2, the mean value is rectified 12, and DC output voltage E0 is acquired. One portion of the voltage E21, E22 is fed back to a saturable transformer T1, the switching circuits 15, 16 are energized while the output voltage E0 is applied to a control circuit 17, control voltage Ec is inputted to the switching circuit 15, its conducting period t1 is controlled, and the output voltage E0 is controlled to constant voltage. Thus, the voltage of a self-excited inverter can easily be controlled by the comparatively simple constitution of circuits.
Patent JP-S59222730-A (JP)
Title: Optical temperature measuring device
Inventor: SATOU YUUICHI
IPC: G01J5/28
Filed: 1983-06-02
Abstract: PURPOSE:To prevent noise and to improve sensitivity, by selecting the wavelengths of the output light beams of two light sources so that the light beams can be received by Si light receiving elements and the output of the divided value from an operating means is approximately linearly changed with respect to the change in temperature. CONSTITUTION:A first light source 10 has a wavelength lambda1 at the center of light emittance. A second light source 11 has a wavelength lambda2 at the center of light emittance, which is different from the wavelength lambda1. An operation circuit 17 holds the amount of received light corresponding to, e.g., the first light source 10, and performs the dividing process of said amount and the amount of the received light corresponding to the second light source 11. The light from the source 10 is inputted at first and the light from the source 11 is inputted later. A voltage proportional to the quotient is outputted. The output voltage of the operation circuit 17 can be approximately linearly changed with respect to the change in ambient temperature of a semiconductor material 6 by the selection of the wavelengths of the light source 10 and the light source 11.
Patent JP-H03292901-A (JP)
Title: Production of fan
Inventor: OZAKI KOJI
IPC: A45B27/00
Filed: 1990-04-11
Abstract: PURPOSE:To increase productivity with adhesion of various coating papers from the front and rear sides by attaching the various papers to the ribs coated with an adhesive having a sticking property only at the heated condition and by heating and pressing them. CONSTITUTION:Each rib 12 positioned at an area for adhesion of covering papers of a born 1 is covered with an adhesion 3. In this time, the adhesive 3 is applied at the heated condition but the adhesive property disappears in the cooled and normal temperature condition. Covering papers 2, 2 are attached to the specified position of the bone 1 in this state from the front and rear sides to be appropriately in the attached state of the covering papers and pressed in the heated condition. In this way, the covering papers 2, 2 are correctly attached to the area for adhesion of the covering papers of the ribs 12 of the bone 1. In this stuck state, only the contacted part of the ribs 12 and the covering papers 2 are bonded and the covering papers 2, 2 are mutually in non-adhesive condition. Since it is not necessary to use special constituting materials as the covering papers 2, only necessary numbers of covering papers 2 may be prepared in lots of kinds but a few products system and the system can be rationalized.
Patent JP-H07279768-A (JP)
Title: Sliding valve type carburetor
Inventor: IKEGAMI MASARU
IPC: F02M19/03
Filed: 1994-04-12
Abstract: PURPOSE:To raise degree of freedom for controlling fuel supply rate to an intake passage and provide optimum air-fuel ratio control in response to the operating condition of an engine. CONSTITUTION:Fuel stored in a float chamber 15 is supplied to an intake passage 12 through a needle jet 17. Air is supplied from a solenoid valve 26 to the needle jet 17 through an air passage 24. Thus the negative pressure in the needle jet 17 varies and the amount of fuel supplied to the intake passage is brought under control. Opening and closing of the solenoid valve 26 is controlled in response to the operating condition of an engine. Therefore air-fuel ratio can be controlled independently of the opening and closing of the sliding valve 12 and can be varied, for example, in response to the engine speed.
Patent JP-H08292061-A (JP)
Title: On-vehicle route presenting system
Inventor: SHIMOURA HIROSHI
IPC: G08G1/0969
Filed: 1995-04-21
Abstract: PURPOSE: To speedily guide a vehicle to nearby facilities even in the case where it is unknown whereabout of the nearest gasoline station for refueling the vehicle as anyone is able to get a recommended route leading to the nearby facilities corresponding to a common name by only inputting this coon name. CONSTITUTION: A corresponding table between a cannon name of a 'gasoline station' or the like and facilities of an 'A gasoline station' or the like being expressible with the common name is stored in a map exclusive disk. When the common name is inputted out of a remote control key (S4), facilities information corresponding to the common name is read out, while out of routes on a route tolly of up to the facilities corresponding to the common name, such a route as being shortest in time or distance from the current position is determined, whereby this route is obtained as the recommended route.
Patent JP-S58213256-A (JP)
Title: Acceleration sensor
Inventor: HAYASHI NORIO
IPC: G01P15/09
Filed: 1982-06-07
Abstract: PURPOSE:To execute a measurement with high reliability by adjusting an inherent vibration number with high accuracy, by forming a thin and platelike pedestal to which a piezoelectric element is installed, and piercing one or more holes on this platelike pedestal so that the prescribed number of inherent vibrations is obtained. CONSTITUTION:An aluminum case 204 has an inside diameter of 16mm., a platelike pedestal is formed as one body with the case and has 0.6mm. thickness and four holes whose hole diameter is 1.8mm. are pierced by dividing equally on a pitch circle of 12.5mm. on this platelike pedestal. Subsequently, an inherent vibration number of such an acceleration sensor is measured, and the hole diameter and the vaviation rate of the inherent vibration number in case when said hole diameter is enlarged are measured. As a result, by correcting said hole diameter of said acceleration sensor, the prescribed inherent vibration number can be obtained. In this way, the measurement having high reliability can be executed by adjusting the inherent vibration number with high accuracy.
Patent JP-H02274546-A (JP)
Title: Printer
Inventor: NAKAJIMA HISANORI
IPC: H04N1/40
Filed: 1989-04-17
Abstract: PURPOSE:To enable a digital filter to be selected by a user according to an image and to enable the image to be processed stably by a method wherein a digital filter selective means and an image processing means are provided, and the image processed by the image processing means is photographically printed. CONSTITUTION:An inputted RGB signal 201 is inputted to a RGB selective circuit 204. After selecting each one color following an order of photographic printing, it is inputted to an A/D converter 205, and a digitalized image signal is once written in a line memory 206. Besides, a CPU 210 recognizes a digital filter selective switch 211, and sends a control signal to a digital processing part 207 so that any filter or a plurality of filter processings from 2071 to 2073 in the digital filter processing part 207 are executed following the digital filter selected from the outside. One line image data prepared thus are gamma converted in a photographic printing processing part 212. Thereafter, they are so converted as to conform to a driver IC of a line head 213, are sent to the line head 213, and photographic printing is performed.
Patent JP-H08295928-A (JP)
Title: Production of thick steel plate excellent in toughness in central part of plate thickness
Inventor: KOJIMA AKIHIKO
IPC: C21D8/02
Filed: 1995-04-21
Abstract: PURPOSE: To produce a thick steel plate excellent in the toughness in the central part of the plate thickness at a reduced alloy cost by subjecting a slab contg. specified ratios of C, Si, Mn and Al to heating treatment and rolling treatment under specified conditions. CONSTITUTION: A slab having a compsn. contg., by weight, 0.02 to 0.3% C, <=0.6% Si, 0.6 to 2.0% Mn and <=0.06% Al, and the balance iron with inevitable impurities is prepd. This slab is heated to the Ac3 +200 deg.C or below in such a manner that the temp. rising rate at the Ac1 to the Ac3 is regulated to >=15 deg.C/min. After that, the cumulative draft at 950 deg.C to the Ar3 -50 deg.C is regulated to >=50%, and rolling is finished at the Ar3 -20 deg.C or above. Thus, the thick steel plate of about >=30mm having excellent toughness in the central part of the plate thickness can be produced in a short time without adding expensive microalloys.
Patent JP-H09263759-A (JP)
Title: Grout for ground solidification
Inventor: KASHIWABARA KENJI
IPC: E02D3/12
Filed: 1996-03-28
Abstract: PROBLEM TO BE SOLVED: To obtain a grout which is based on slag and water glass, is injected into a ground to solidify it, has a gel time easily extensible and controllable and good permeating properties, and gels without fail even at low temps. into a solid having high initial strengths and an excellent durability. SOLUTION: This grout contains slag, water glass, and an alkali metal aluminate as the gell time adjusting agent. If necessary, the grout further contains an alkali metal carbonate in addition to an alkali metal aluminate as the get time adjusting agent.
Patent JP-S59224025-A (JP)
Inventor: ISHIKAWA MASAHIDE
IPC: H01H50/34
Filed: 1983-06-01
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-H08270568-A (JP)
Title: Tube pump
Inventor: ITO CHO
IPC: F04B43/12
Filed: 1995-03-31
Abstract: PURPOSE: To prevent the occurrence of failure caused by crush of a tube even in the restarting after a long term of nonuse. CONSTITUTION: A tube pump 1 is formed in such a constitution that at least two rollers 4 of a rotor are simultaneously rotated along the circumferential wall of a stator 3 while pushing and crushing an elastic tube 6 arranged between the stator 3 and a circumferential wall 2. A projecting part 18 which is brought in contact with a crushed tube is formed by projecting it from the inner surface of the rotor toward one side of the stator, the crushed part of the tube 6 is push-pressed by the projection part 18, and the projection part 18 assists to return the crushed part into an original form.
Patent JP-S60243250-A (JP)
Title: High-hardness wear-resistant steel having superior weldability
Inventor: HAJI TOSHIAKI
IPC: C22C38/54
Filed: 1984-05-17
Abstract: PURPOSE:To manufacture a high-hardness wear-resistant steel having superior weldability and high durability by hardening a steel contg. specified percentages of C, Si, Mn, P, S, Cr, Mo, sol. Al and B and having a specified pH value estimating weldability. CONSTITUTION:A steel consisting of 0.3-0.5% C, 0.05-0.5% Si, 0.5-1.5% Mn, <=0.010% P, <=0.005% S, 0.1-1.0% Cr, 0.02-0.4% Mo, 0.01-0.1% sol.Al, 0.0005-0.05% B and the balance Fe with inevitable impurities or further contg. 0.005-0.05% Ti and one or more among <=0.5% Cu, <=0.5% Ni, <=0.05% Nb and <=0.05% V and having <=1.0% pH value represented by an equation pH=C+ Mn/10+Mo/6+Cr/15+3V+40P+100B(%) is hardened or hardened and tempered at a low temp.
Patent JP-H03297598-A (JP)
Title: Method for aligning groove ends in automatic welding machine for fixed tube
Inventor: TAKANASHI KENICHI
IPC: B23K37/053
Filed: 1990-04-16
Abstract: PURPOSE:To mount a welding head on a tube having a short straight part by positioning one clamper so that it abuts on the opening end of a positioning jig, fixing it to the tube and bringing the other clamper into contact with this end face to fix the head body to the tube. CONSTITUTION:The groove face of the tube 1 is brought into contact with the inner bottom surface of the positioning jig 16 in the shape of a bottomed cylinder and the clamper 4 is positioned to be fixed to the tube 1 so that the end face of one clamper 4 abuts on the jig. The other tube 1' is brought into contact with the tube 1 to weld the groove face 2 temporarily. Thereafter, the end face of the other clamper 4' is brought into contact with the end face of one clamper 4 fixed to the tube 1 and fixed to the tube 1 and the head body 3 is mounted on the tube 1. Consequently, the surface of revolution of a tungsten electrode 5 comes in parallel with the groove face and since the distance from the end face of the clamper 4 to the groove 2 is adjusted to the distance (l) from the end face of the clamper 4' to the electrode 5, the electrode 5 and the groove 2 are aligned accurately all over the circumference.
Patent JP-S5621018-A (JP)
Title: Electronic flow meter
Inventor: FUKUI JIYUN
IPC: G01F15/075
Filed: 1979-07-31
Abstract: PURPOSE: To facilitate the measurement of flow rate per unit time, by providing a read-only memory in which flow rates per unit time corresponding to the revolution speeds of a runner are previously stored.  
     CONSTITUTION: The rotation of a runner is changed into pulses, which are transmitted to a terminal 20. An AND gate 21 or 22 is opened to integrate the pulses by a counter 23 or 24. A flow rate per unit time, which is obtained from a read-only memory 27 and corresponds to the integrated value, is applied to a latch circuit 29 through an output line 28. The flow rate output is latched by the circuit 29 and displayed through a BCD-7 segment conversion circuit 38. A reset circuit 32 is controlled through a signal line 39 to clear the counter and the latch circuit 29. These operations are effected by timing signals 51W55 from a timing generation circuit 31 as shown in the figure. Gates 21, 22 are alternately opened at timing applied by timing signals 50, 53. Said procedure results in easily measuring the flow rate per unit time. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S5621435-A (JP)
Title: Extrahigh frequency transmitting and receiving device
Inventor: MATSUMURA AKIRA
IPC: H04B17/00
Filed: 1979-07-31
Abstract: PURPOSE:To make it possible to detect accurately whether anomaly exists or not, by not providing a unit which generates a pulse-modulated extra-high frequency signal but fitting or incorporating a simple anomaly detecting mechanism. CONSTITUTION:The oscillating circuit consists of extrahigh frequency oscillator 1, isolators 2, 4, and 6, directional coupler 3, pulse modulator 5 such as a PIN switch, circulator 7, antenna 8 used for transmission and receiving in common, single mixer 9, band-pass filter 10, and detector 11. Anormaly detecting mechanism 20 is added to this oscillating circuit. For anomaly, detector 11 does not generate the pulse output even if switches 13 and 13a are turned on, and therefore, flip-flop 15 receives the output of differentiating circuit 20 with reset terminal R and outputs ''0'' and ''1'' to output terminals Q and Q' respectively. Consequently, only transistor 18 is turned on, and light emission diode 16 indicates anomaly.
Patent JP-H01269160-A (JP)
Title: Terminal for stay-at-home betting
Inventor: HIRAMITSU SEIJI
IPC: G06Q50/00
Filed: 1988-04-20
Abstract: PURPOSE:To automatically distribute a bet money by providing a bet money calculating part at a betting processing part and preparing the voting data composed of plural pairs of a pair number and the bet money from a frame number and the total amount of the bet money inputted by a better from an input device. CONSTITUTION:A bet money calculating part 18 is provided at a betting processing part 13 and a bet money calculating part 18 stores a logic to purchase a betting ticket, which is specified beforehand and can be changed by a better, into a memory. The logic to purchase the betting ticket has a 3-point purchasing system and a parachute system, and the bet money calculating part 18 selects one system out of these betting ticket purchasing systems in accordance with the instruction of the better. By the result, the betting data composed of plural pairs of the pair number and the bet money are prepared from a frame number and the total amount of the bet money inputted from an input device 15 by a voter. Thus, the betting can automatically distribute the bet money arbitrarily.
Patent JP-H04307647-A (JP)
Title: Memory card storage control system
Inventor: HAYASHI KENKICHI
IPC: G11C16/06
Filed: 1991-04-04
Abstract: PURPOSE:To control a data area including a defective part of the information recorded into a memory card having an EEPROM. CONSTITUTION:An error bit map is formed in a control area to show the propriety of the storage state of each cluster of a date area in a single bit. The error bit map is held at '1' equal to an initial state as long as the cluster storage state is normal in a cluster verifying state. Meanwhile '0', i.e., the inverted value of the initial state is written in the error bit map if the cluster storage state is abnormal in the cluster verifying state. When '0' is written, no erasure processing is required for an EEPROM. Then the control area can be rewritten just by writing '0' over the state of '1'. In an erasure state, the error bit map is once reed out of a system memory and then returned to a prescribed position of the control, area after erasion. As a result, a defective cluster is never used after erasure and the data can surely be stored.
Patent JP-H07280145-A (JP)
Title: Connecting method for lead pipe and joint, and lead pipe end expanding device used therefor
Inventor: MURAI ATSURO
IPC: F16L19/04
Filed: 1994-04-11
Abstract: PURPOSE:To properly and easily connect a lead pipe without any water leakage by screwing a cap nut to a joint after capping an expanded pipe end to a taper end having a coupled annular packing. CONSTITUTION:A cap nut 61 is coupled to a lead pipe 51 from the side of an internally bulged flange 62, and a ring body 64 having internally tapered surface 65 is coupled thereto from the side of a small diameter section. Thereafter, the end of the pipe 51 is expanded like taper for the expansion of an end. The expanded end of the pipe 51 is, then, capped to the taper end 54 of a joint 53 having an annular packing 56 coupled to an annular groove 55 and, thereafter, the cap nut 61 is screwed to the external thread of the joint 53. According to this construction, the end of the pipe 51 can be kept in watertight contact with the packing 56 via the ring body 64, using the nut 61. Furthermore, a vinyl pipe 58 is connected to the other end of the pipe 51.
Patent JP-H06309545-A (JP)
Title: Coin discriminating device
Inventor: NODA KOJI
IPC: G07D5/08
Filed: 1993-04-23
Abstract: PURPOSE:To provide the coin discriminating device which has a high discrimination precision free from the variance among magnetic sensors and is realized with an inexpensive and simple circuit constitution. CONSTITUTION:Outputs of secondary coils 13a and 13b of a magnetic sensor 4 set under a carrying path 2, where a coin C is carried, are subjected to amplification, rectification, and smoothing processings independently of each other by amplifying circuits 21a and 21b, rectifying circuits 22a and 22b, and low pass filter 23a and 23b so that they have a prescribed ratio, and outputs of low pass filters 23a and 23b are inputted to an operation circuit 24 where the operation constant can be adjusted. The operation circuit 24 operates these outputs based on a prescribed operation constant and sends the operation result to an A/D converter 26 through an amplifying circuit 25 where the amplification constant can be adjusted, and it is digitized and is outputted to a CPU 26. The CPU 26 discriminates the material, the shape, or the like of the coin C based on the output of the A/D converter 26.
Patent JP-H03294808-A (JP)
Title: Lens moving device
Inventor: ISAKI MASATAKA
IPC: G03B13/34
Filed: 1990-04-13
Abstract: PURPOSE:To reduce the generation of noises by providing guide holes and a guide groove on a lens holding frame, arranging a 1st guiding pole which engages the guiding hole and a 2nd guiding pole which engages the guiding groove, and applying a lubricant which has higher viscosity than the 1st guiding pole to the 2nd guiding pole. CONSTITUTION:A rack member 18 is pressed against the driving shaft of a stepping motor 20 and the guiding holes 13a and 13b and guiding groove 13c are formed at mutually opposite positions of a lens holding frame 13 which is coupled and associated with the racking member 18. The 1st guiding pole 15 which is coated with a low-viscosity lubricant 38 is run through the guiding holes 13a and 13b, the 2nd guiding pole 16 which is coated with the high- viscosity lubricant 39 is run through the guiding groove 13c, and the lens holding frame 13 is arranged slidably along them. Consequently, even when a lens is moved forward/backward, the noises are reduced.