baber/WOPTO huggingface dataset:
Patent JP-S5737245-A (JP)
Title: Method of measuring specific gravity of dust contained in oil
Inventor: OKAMOTO TATSUO
IPC: G01N9/36
Filed: 1980-08-15
Abstract: PURPOSE:To detect the abnormal condition of an oil-filled electric equipment quickly and prevent the equipment from being damage, by a method wherein sampled oil is collected two times and more from a container having sampled oil at the specified depth immediately after churning the oil with a suction tube and after pacifying the oil for a certain period of time after the churning, and the distribution of dust in the oil is measured so as to compute the specific gravity of the dust contained therein. CONSTITUTION:In the method of judging whether the dust contained in oil-filled electric equipment is produced by carbon grains generated by internal abnormal conditions such as arc and corona discharge by measuring the specific gravity of the dust, sampled oil 12 is collected in a cylindrical container 10 in which the suction port of a suction tube 14 is put in the oil at the specified depth h from the liquid surface, while the oil 12 is being churned. When the viscosity of the oil is too high, it may be diluted with alcohol. Immediately after the oil is churned, it is collected partly by a suction device 16, using a filter 18 to remove matter with large grains. A part 20 is used to measure the logarithmic ratio of the diameter of the dust in the oil to its density and display the ratio. The oil is again collected and measured at a certain time after it has been pacified. The specific gravity of the dust grain is computed by the use of the specified operating expression from both the measured values.  Thus abnormal conditions are quickly detected while the occurrence of serious accidents can be prevented.
Patent JP-S5814573-A (JP)
Title: Semiconductor device
Inventor: KOIKE HIDEJI
IPC: H03F1/42
Filed: 1981-07-17
Abstract: PURPOSE:To realize a device with its internal circuits protected against a positive or negative abnormal input by a method wherein a well region on a substrate is provided with a transistor and, simultaneously, a region is specified in the well region, and an electrode connected to this specified region is also connected to the transistor gate electrode. CONSTITUTION:A thick field oxide film 38 is formed in the periphery of an n<-> type semiconductor substrate 31 and the part surrounded by the oxide film 38 is provided with a p<-> type well region 32 formed by diffusion. In the region 32, an n channel transistor 33 is built. That is, an n<+> type drain region 34 and  source region 35 are formed by diffusion within the region 32. On the part of  the region 32 remaining exposed between the regions 34 and 35, a gate electrode 37 made of polycrystalline Si is formed through the intermediary of a gate  oxide film 36. Next, a p<+> type region 43 is formed by diffusion in the region 32,  adjacent to the region 34 and insulated by an insulating layer. An electrode 42  attached to the region 43 is then connected to a gate electrode 37. When a positive voltage is supplied to the region 34 with the region 35 grounded, the voltage of the region 32, influenced by the source voltage, becomes nearly equal to the  ground voltage, creating stability in the presence of an abnormal input.
Patent JP-S5735372-A (JP)
Title: Photothyristor
Inventor: NAKAGAWA TSUTOMU
IPC: H01L29/74
Filed: 1980-08-11
Abstract: PURPOSE:To enable a photothyristor to turn on in response to a small quantity of photoenergy by a method wherein the absorption and damping of incoming light is kept low by providing the surface of a well-shaped light receiving section with a low resistance layer of the same type of conductivity. CONSTITUTION:A well-shaped light receiving section 5 is formed on one of the main surfaces of a pnpn or npnp type 4-layer structure. A low resistance layer 8 of the same type of conductivity is formed on the surface of the light receiving section 5. This lowers the sheet resistance R2 of the light receiving section 5, shortening the time needed for the photocurrent caused by the incidence of photoenergy to start running from an electrode 6 to an electrode 7 and reach a stationary value or the time needed for the thyristor to turn on.
Patent JP-2000301268-A (JP)
Title: Manufacture of repair-free easy-open can lid excellent in can openability
Inventor: YAMANAKA YOICHIRO
IPC: B21D51/44
Filed: 1999-04-20
Abstract: PROBLEM TO BE SOLVED: To dispense with a repairing coating to prevent the degradation of the corrosion resistance caused by the damage of a resin film and to improve the can openability by forming a resin film of specified breaking elongation, tensile strength, tensile elasticity and thickness on both sides of a steel plate, pressing the steel plate with a die of a specified tip radius and a flat die to set the thickness of the thinnest pressed portion of a steel plate to be a specified value. SOLUTION: A thermoplastic resin film 7 is coated on both sides of a steel plate. The resin film 7 is >=100% in breaking elongation, >=10 kg/mm2 in tensile strength, >=100 kg/mm2 in tensile elasticity and 10-100 μm in thickness. The steel plate is pressed with a curved die of 0.1-1 mm in tip radius R and a flat die. The thickness t of a thinnest pressed portion of the steel plate satisfies the formulae I and II. In the formulae I and II, to denotes the thickness (mm) of the steel plate, n the work-hardening exponent in the area of 40-90% of uniform elongation and TS the tensile strength (kgf/mm2). An easy-open can lid is preferably formed of a polyester resin.
Patent JP-H07289940-A (JP)
Title: Electric dust collector
Inventor: KATSUMURA SHINICHIRO
IPC: B03C3/70
Filed: 1994-04-26
Abstract: PURPOSE:To prevent the occurrence of defective insulations and sparks in an electric dust collector. CONSTITUTION:A high pressure electrode plate is formed by a semi-insulating resin material having the water suction rate of 1 % or less and the volume resistivity of 10<10>-10<13>OMEGA.cm, and a spacer section 26b is formed on a collecting section 26a of the plate integrally. A pipe-shaped cover 27 is formed by a material equivalent to the electrode plate. A seal boss 29 is fitted to the pipe-shaped cover 27 in which a power supply shaft 28 is inserted. As the power supply shaft 28 is covered with the pipe-shaped cover 27 and the electrode plate, the movement of the charge of the electrode plate is limited by the resistance of the semi-insulating resin material to make the generation of sparks hard.
Patent JP-H10304471-A (JP)
Title: Infrared-ray data receiver
Inventor: NODA KAZUO
IPC: H04B10/60
Filed: 1997-04-30
Abstract: PROBLEM TO BE SOLVED: To reduce malfunctions of an infrared-ray data receiver, caused when an infrared-ray signal and a low-frequency external disturbance light noise such as the sun ray or an incandescent light are made incident onto the receiver. SOLUTION: This infrared-ray data receiver consisting of a photodiode 1 which is a photoelectric conversion element, a preamplifier 2, an ABCC circuit 3, an AC coupling capacitor 4, a resistor 5, a post-stage amplifier 6, and a comparator 7, is provided with a malfunction prevention circuit (low-pass filter) 8 that receives an output of the amplifier 2 and adds its output to a detection voltage V1, so as to change the detection voltage in response to the incident external disturbance light.
Patent JP-S63277774-A (JP)
Title: Post-treatment of mat solder plating
Inventor: KOYANO HIDEKATSU
IPC: H05K3/34
Filed: 1987-05-11
Abstract: PURPOSE:To improve the heat and moisture resistances, solderability and luster of mat solder plating by immersing the plating in an acidic soln. contg. Sn<2+> ions and an acid forming no precipitate with Pb<2+> ions at a specified temp. CONSTITUTION:Mat solder plating is post-treated by immersion in an acidic soln. contg. Sn<2+> ions in the form of SnCl2 or the like and an acid forming no precipitate with Pb<2+> ions such as HCl at >=60 deg.C for >=about 15sec. By the post-treatment, chemical thinning is carried out on the mat solder plating to form a uniform silver-white lustrous film. The post-treated solder plating has superior adhesion and moisture resistance even after heating.
Patent JP-S59188366-A (JP)
Title: Frequency generator of servo motor or the like
Inventor: KAKIGI WATARU
IPC: H02K21/24
Filed: 1983-06-22
Abstract: PURPOSE:To obtain an accurate rotating frequency output even under inaccurate state by setting the times of variations in the periodic magnetic fluxes in the portion corresponding to a pole of a drive multipolar magnet to 2n (n=1, 2,...) times. CONSTITUTION:A magnetic unit such as a rotor 2' or the like is secured to a drive multipolar magnet, has a plurality of irregular surfaces formed via radial slots on an annular portion in such a manner that variations in the periodic magnetic fluxes of 2n (n=1, 2,...) occur in the portion corresponding to the pole of the multipolar magnet. A generating strand 3' is disposed to correspond by 1:1 to the variations in the magnetic flux due to the rotor 2' at the position opposed to the rotor 2'. With the boundary between the N-pole and the S-pole of the magnet as a reference the slot of the rotor 2 is displaced at 180 deg. of an electric angle. The variation in the magnetic flux is detected by the generating strand 3' to control the rotating speed of the rotor 2'.
Patent JP-H09297054-A (JP)
Title: Optical detector
Inventor: SHIMOYAMA MAKI
IPC: G01J1/02
Filed: 1996-05-07
Abstract: PROBLEM TO BE SOLVED: To obtain an optical detector with a plurality of sensor functions by an inexpensive means without changing the spectral sensitivity of optical semiconductor element itself. SOLUTION: In such an optical detector that an optical semiconductor element 2 is covered with a cap 7 having an incident light window part 8 and the quantity of incident light entering the element 2 through the window part 8 is detected, the window part 8 is made of material enough to control the transmitting light quantity with a wavelength within the specified range in wavelengths of incident light of the part 8, and the photocurrent output value of the element 2 is controlled by the transmitting light of the part 8, thereby allowing one optical semiconductor element to have multiple functions equivalent to those of a plurality of sensors.
Patent JP-S61270965-A (JP)
Title: Call monitoring system for multiple dwelling house
Inventor: HISAMATSU NOBUO
IPC: H04Q9/00
Filed: 1985-05-25
Abstract: PURPOSE:To eliminate lost information by transmitting successively and cyclically a calling signal by a time division multiplex transmission, as well as executing the calling without fail, and returning cyclically the security information. CONSTITUTION:When a visitor operates a ten-key13 at a common front door device and calls a manager room or a house, an interphone 15 is connected to a calling line 2, and further, displayed by a room number displaying device 14. A main device 3 transmits successively and cyclically the transmitting signal composed of a start ST, an address signal AD, transmitting data CD, a check sum SM and a return period RT to a signal line 1, and executes the receiving processing of a return signal RD returned to the return period RD. A terminal equipment 18 is accessed by the main device 3, and then, returns the empty number data as the return signal RD and this constitutes the calling signal. The main equipment which receives this, decides an interphone 9 of the manager room or the address of the terminal equipment 18 of the house and connects it to the calling line 2.
Patent JP-S5237257-A (JP)
Title: Managing method for inhibitor in absorption refrigerating machine
Inventor: ITOU MASAHIKO
IPC: F25B47/00
Filed: 1975-09-19
Abstract: PURPOSE: Managing method for corrosion of metallic materials especially in a highly heated and concentrated solution of lithium bromide, and for inhibitors. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S5447149-A (JP)
Title: Refrigerator
Inventor: ISHII MASAHARU
IPC: F25B1/00
Filed: 1977-09-21
Abstract: PURPOSE: The position of injection of liquid refrigerant is located at the higher pressure side of the position for injection of oil in a compression working chamber, so that the lower-pressure side is effectively sealed with oil and the high-pressure side is effectively cooled by the refrigerant.  
     CONSTITUTION: The oil separated by an oil separator 3 is cooled by an oil cooler which is disposed intermediate of an oil passage 15, and is returned, through a control of flow rate by an oil regulating valve 14, to a screw compressor 1. Meanwhile, a part of the refrigerant in a condenser 4 is injected into the compression working chamber of the screw compressor 1 through a refrigerant passage 13 so as to cool the gas and oil in the compressor. The position of injection of the liquid refrigerant is selected to fall within the range of rotation angle of male rotor of between 85° and 130° from the suction point, while the position of injection of oil is selected to fall within the range of between 20° and 60° from the sucking point. As a result, the low-pressure side of the chamber is effectively sealed by the oil, while the high-pressure side of the same is effectively cooled by the liquid refrigerant, so as to improve the performance of the screw compressor 1 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S5637546-A (JP)
Title: Measuring unit of water content of grain dryer
Inventor: KANEFUJI YUUJI
IPC: G01N27/04
Filed: 1979-09-03
Abstract: PURPOSE: To enable accurate measurement, by conducting the measured voltage of the resistance water content meter to the counter after a given time from the electrode rod locked.  
     CONSTITUTION: The electrode rod 11 is connected to the A-D converter AD via the Triac TC. When the electrode rod 11 is locked and the switch is closed, the timer T is operated and the data feed signal is output from the timer T to the control section C after a given time from the time point. Thus, a signal is output from the terminal C(5) of the control section C to the gate of the Triac TC and the Triac TC is instantly conducted. The voltage Er from the electrode rod 11 is fed to the A-D converter AD and the value is converted into pulse number. The number of pulses is counted with the counter and digitally displayed on the display section. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S594059-A (JP)
Title: Fabrication of semiconductor device
Inventor: INOUE MINORU
IPC: H01L27/04
Filed: 1982-06-30
Abstract: PURPOSE:To obtain a high quality and uniform dielectric film consisting of a compound with O2, N2 or O2+N2 gas on the surface of semiconductor substrate through high frequency heating process under the O2, N2 or O2+N2 gas ambient. CONSTITUTION:On the occasion of forming a gate oxide film on an Si substrate, a substrate 1' is placed on a base 5 in the reaction chamber 7 kept at 0.01- 0.1Torr by allowing the dry O2 gas to flow at the specified flow rate and it is pre-heated 6 up to 450-600 deg.C. The microwave is generated 12 and it is radiated with an energy of about 1.5kW through a waveguide 11 and a quartz window. Thereby, a substrate temperature is heated up to about 900-1,000 deg.C and is kept at such a temperature for the specified period by measuring such temperature 14. A temperature is rise rate is about 500 deg.C/min and therefore only a little amount of oxide film is generated at a low temperature. The microwave penetrates deeply into the inside and heat material uniformly and heats only the substrate. Accordingly, there is no mixture of impurity from outside and heating temperature can be controlled accurately. As a result, a good SiO2 film having high purity and uniform thickness can be obtained. In case of forming Si3N4 film with the N2 gas or Si-O-N with O2+N2 gas, similar film can be obtained with almost the same gas pressure and substrate temperature.
Patent JP-2000308140-A (JP)
Title: Mobile radio communication equipment and communication permission method
Inventor: OSHIMA HIROYUKI
IPC: G06K19/00
Filed: 1999-04-20
Abstract: PROBLEM TO BE SOLVED: To recognize the possessor of equipment, by executing communication based on a main body identification code for identifying the possessor of an equipment main body, which is inputted from an input part, and a card identification code for identifying the possessor of an installed IC card. SOLUTION: A memory part 25 has an SIM information storage part 252 storing SIM information showing an SIM card 26 inserted into a mobile station at the time of a previous ration and has a password storage part 251 storing a password registered in a mobile station 10 itself. SIM information identifies the SIM card 26 that a mobile station 10 main body stores. A control part 21 obtains data from the SIM card 26 inserted after the supply of the power to the mobile station 10, compares the password inputted from input part 22 with the password of the mobile station 10 itself, which the password storage part 251 of the memory part 25 stores, based on the data and the SIM information storage part 252 of the memory part 25 and judges whether a subsequent operation is to be received or not.
Patent JP-H09271286-A (JP)
Title: Feces processing bag with paperboard
Inventor: INOUE KUNIO
IPC: A01K23/00
Filed: 1996-03-30
Abstract: PROBLEM TO BE SOLVED: To provide a feces processing bag with paperboards capable of fetching feces dropped on the ground in the bag well without grasping them with a hand even when the feces are loose. SOLUTION: The two paperboards 2 are provided on both sides of the opening part of this bag 1.
Patent JP-H04341224-A (JP)
Title: Vacuum cleaner
Inventor: IGARASHI AKIRA
IPC: A47L9/10
Filed: 1991-05-17
Abstract: PURPOSE:To prevent the open air and dust from intruding into an air course, and to prevent the breakage accident of parts caused by vibration and external force by forming the rear cover by a material provided with elasticity, forming integrally a shielding wall and a dust collection bag suction preventive rib, and detaining a detaining wall to the upper case. CONSTITUTION:By forming the rear cover 11 by a material provided with elasticity, and providing projectingly a projecting part 31 provided with rigidity, the rear cover 11 is fixed firmly to the upper case 1b. Also, a changeover switch 17 is placed in the lower case 1a, contamination can be prevented thereby, and a mal-function of the switch is eliminated. A shielding wall 18 is formed integrally by a slide die and provided with a dust collection bag suction preventive rib 19, and also, provided with a detaining wall 34. In such a way, strength of the shielding wall 18 increases. Or, by detaining the detaining wall 34 to the upper case 1b, vibration of the shielding wall 18 is prevented, and an air leakage between the upper cover 9 and the packing is nearly eliminated.
Patent JP-2000305332-A (JP)
Title: Image forming device
Inventor: KAGAWA TETSUYA
IPC: B41J2/44
Filed: 1999-04-21
Abstract: PROBLEM TO BE SOLVED: To accomplish the reduction of the number of parts in an image forming device, and to accomplish the reduction of the cost specially by driving a photoreceptor drum and controlling the distance between the photoreceptor drum and an LED array unit at the same time. SOLUTION: The leading end part of each of high frequency oscillators 2 constituting a rotary driving means is pressed against the surface of the photoreceptor drum 1 by an energizing means 4 so that the oscillators 2 may oscillate back and forth in opposite directions with a phase deviated. By this way, the photoreceptor drum 1 is rotated. The LED array unit 3 and the high frequency oscillator 2 are assembled as one body, and a pressurizing force for pressurizing against the photoreceptor drum 1 is applied on the unit 3 and the oscillators 2 by the energizing means 4.
Patent JP-H07314477-A (JP)
Title: Compression mold
Inventor: NISHIDE YASUTAKA
IPC: B29C43/38
Filed: 1994-05-26
Abstract: PURPOSE:To decrease the quality dispersion of molded items due to excessive charge, and enable overflowed flashes to be cut off from the molded item at the time of releasing the molded item from the mold. CONSTITUTION:A pin hole 3 is made in the cavity 2 at the position except the parting surface of a mold 1. The pinhole 3 is permitted to communicate with an overflow hole 4 provided within the mold 1. When a molding material is excessively supplied into the cavity of the mold 1, a surplus molding material overflows from the pinhole 3 to the overflow hole 4 so that excessive charge is prevented. Also, flashes of the molded material overflowed into the overflow hole 4 are cut at the pinhole 3 at the time of releasing the molding item from the cavity 2.
Patent JP-S593749-A (JP)
Title: Digital audio disk player
Inventor: KUSANO KAZUTOSHI
IPC: H02P29/00
Filed: 1982-06-30
Abstract: PURPOSE:To obtain speedily a prescribed speed, by dividing the frequency of a playback signal from a pickup and obtaining a sharp peak, performing F-V conversion and performing a rough adjustment of the speed of a motor, and controlling the playback signal precisely. CONSTITUTION:The playback signal A is frequency-divided by a frequency dividing circuit to obtain a signal B, which is converted by an F-V converting circuit 2 to obtain a signal C. The signal A has a sharp peak as compared with the signal A. The signal C is amplified by an amplifier 5, whose output is inputted as a signal D to an adder 10 through the 1st level adjusting circuit 6; and the spindle motor 12 is adjusted roughly and speedily through a motor driving circuit 11 within the 10% range of its prescribed speed. The signal A, on the other hand, is phase-locked by a bit clock generating circuit 7 to generate a bit clock signal E synchronizing with information bits, and the signal E is compared by a phase comparator 8 with a reference clock F; and a signal H is added by an adding circuit 10 through the 2nd level adjusting circuit 9 to drive the motor by the motor driving circuit 11, making performing the rough adjustment. Consequently, the motor attains to the target revolving speed speedily in starting and mode transition.
Patent JP-H06325043-A (JP)
Title: Gantt chart display editing processor
Inventor: HARADA TAKASHI
IPC: G06Q50/00
Filed: 1993-05-14
Abstract: PURPOSE:To provide the Gantt chart display editing processor having various functions for improving operability and for display and editing processing by providing a man-machine interface with a graphical user interface as a center. CONSTITUTION:This device is provided with a display device 10, input device 20, storage device 30 and arithmetic/control equipment 40. The display device 10 displays a Gantt chart on the screen at least. The input device 20 inputs the executing instruction of display and editing processing by an operator. The storage device 30 stores schedule data 31 of a production plan to be displayed/edited as the Gantt chart. The arithmetic/control equipment 40 is provided with a schedule display editing means 41 for displaying graphics on the display device 10 based on the schedule data 31 and changing the display method of the graphics or editing the display contents corresponding to an input via the input device 20.