baber/WOPTO huggingface dataset:
Patent JP-2000156281-A (JP)
Title: Induction heating cooker
Inventor: OGATA TAIZO
IPC: H05B6/12
Filed: 1998-11-19
Abstract: PROBLEM TO BE SOLVED: To solve a problem of coarse power adjustment because of change of power change quantity per increase/decrease width of on-time of a switching element in heating loads of different forms and materials. SOLUTION: This induction heating cooker is provided with a resonance circuit 3 composed of a heating coil 1 and a capacitor 2, an inverter circuit 5 composed of at least one switching element 4 connected to the resonance circuit 3 serially or in parallel, a power source 6 to supply power to the inverter circuit 5, a power detection means 7 to detect power to be supplied to the inverter circuit 5, a control means to control input power in plural stages by outputting on-time of the switching element 4, and a power change quantity detection means 9 to detect power change quantity per stage, and the control means changes increase/decrease width of on-time in accordance with the power change quantity.
Patent JP-H11158717-A (JP)
Title: Clothing and body to be stuck
Inventor: HIRAOKA MARIKO
IPC: A41D27/00
Filed: 1997-11-28
Abstract: PROBLEM TO BE SOLVED: To provide clothing capable of allowing a pillion reel, scissors or the like to be attached to a clothing body by sticking a pin such as a safety pin and capable of precisely and readily carrying out the sticking and further to provide a body to be stuck. SOLUTION: This clothing has a part 5 to be stuck capable of being stuck by a pin such as a safety pin, and formed on the clothing body 10. The part 5 to be stuck is constituted, for example, of cotton 7 covered by a fabric-like outer cloth member 6 so as to be expanded from the clothing body 10.
Patent JP-H08241187-A (JP)
Title: Booth multiplier for trigonometric function
Inventor: JIYORUJIYU MARUTEINE
IPC: G06F7/52
Filed: 1995-12-18
Abstract: PROBLEM TO BE SOLVED: To simplify the configuration of a booths multiplier using the data of trigonometric functions. SOLUTION: In a circuit 10 which performs multiplication on data in accordance with the algorithm of a booths multiplier, a control signal encoder 12 is suited to the symmetric features of trigonometric functions. The value of a function related to one quadrant only is stored in a memory 14 and a converting unit 11 is made to utilize the circuit 10 regardless of the quadrant. The value of a trigonometric function is obtained by interpolation. The circuit 10 is applied to Fourier transformation or discrete cosine conversion.
Patent JP-H03193614-A (JP)
Title: High purity phosphoric acid and its production
Inventor: YAMAZAKI YASUO
IPC: C01B25/234
Filed: 1989-12-21
Abstract: PURPOSE:To improve purity of phosphoric acid by dipping a specified crystallization tube in phosphoric acid to be a material, to precipitating phosphoric acid hemihydrate on the surface of the tube, taking out of the crystallization tube, and then allowing the hemihydrate to be sweated to remove impurities incorporated in the acid. CONSTITUTION:The temperature of phosphoric acid to be the material having concn. >=70wt.% (expressed by % hereinafter) is controlled at 15-30 deg.C, and a crystallization tube of specified shape through which a coolant such as mixture solution of water/ ethyleneglycol is made flow is dipped in the acid to precipitate phosphoric acid hemihydrate on the surface of the tube in a subcooling state at -2 to -8 deg.C. Then the tube is taken out of the phosphoric acid liquid to separate the phosphoric acid hemihydrate from the mother liquid. The hemihydrate is made to be sweated while the fused amt. is controlled to 10-40wt.% to remove impurities incorporated in the inside/outside of the hemihydrate. Further, as necessary, the hemihydrate of phosphoric acid obtained by precipitation with super purity water or high purity phosphoric acid may be substituted and cleaned with super pure water of high purity phosphoric acid to remove impurities. Thus, the obtd. phosphoric acid is in high purity having impurities of <=25ppb Fe, <=3ppb Mn and <=40ppb Na expressed in terms of 85% H3PO4 concn.
Patent JP-H05101449-A (JP)
Title: Reproducing method for optical disk
Inventor: SATO KAZUHIRO
IPC: B29L17/00
Filed: 1991-11-18
Abstract: PURPOSE:To execute transfer without contg. bubbles while maintaining high productivity in spite of presence of some ruggedness in a transparent resin substrate, etc. CONSTITUTION:A pressurizing plate 10 having a prescribed curvature is used, by which a substrate 2 consisting of a transparent resin is inserted in a sandwich form with this pressurizing plate and a stamper 8 and the stamper 8 is brought into local pressurized tight contact with a radiation curing resin 6 in the method for reproducing the optical disk by bringing the stamper 8 into pressurized contact with the radiation curing resin 6 formed on the substrate 2. The pressurized tight contact part 14 is gradually moved by moving the above- mentioned pressurizing plate 10, etc., by which the bubbles contained in the contact surface are expelled to the outside. The parts where the pressurized tight contact is completed are irradiated with radiations to completely cure the radiation curing resin. The half curing and complete curing treatments are executed continuously if the resin 6 prior to the pressurized tight contact is put into a half-cured state by irradiating this resin with the radiations of the slight quantity from the same radiation source as the radiation source used at the time of the curing.
Patent JP-H08158091-A (JP)
Title: Production of granular tin plated steel plate
Inventor: KUBO HIROSHI
IPC: C25D3/32
Filed: 1994-12-03
Abstract: PURPOSE: To efficiently produce a granular tin plated steel sheet at a low cost by greatly increasing the upper limit of current density at the time of depositing a granular tin. CONSTITUTION: Electrolytic treatment is enabled at a high current density by executing tin plating in a plating bath using methane sulfonic acid as a base material and a steel sheet is electrolyzed at the current density of 10-120A/dm<2> in the plating bath containing >20g/l to 60g/l bivalent tin ion and 10-120g/l methane sulfonic acid expressed in terms of sulfuric acid to execute tin plating to the surface of the steel sheet by 0.02-2.8g/m<2> coating weight. To attain more excellent coating material adhesivity, the surface of the steel sheet is subjected to tin plating by 0.3-1.0g/m<2> coating weight by electrolyzing it at the current density of 10-100A/dm<2> .
Patent JP-2000154987-A (JP)
Title: Air heat exchanger
Inventor: SHIROMIZU JUNICHI
IPC: F28F1/02
Filed: 1998-11-19
Abstract: PROBLEM TO BE SOLVED: To improve a heat transfer rate on the refrigerant side in an air heat exchanger which has flat heat transfer tubes of a multi-hole structure as components. SOLUTION: In an air heat exchanger equipped with flat heat transfer tubes 2 of a multi-hole structure each having a plurality of refrigerant flow holes 2a-2k of a square section inside and having projections 6 of a triangular section provided on the inner peripheral surfaces of the refrigerant flow holes 2a-2k, the refrigerant flow holes 2a-2k of the square section inside the flat heat transfer tubes 2 are so formed that the ratio S of the cross-sectional area to the dimension of a surface of slope is 0.2-0.3 both exclusive, while the projections 6 is so formed that the vertical angle θ is in the range of 20 deg.-40 deg. both exclusive, that the height (h) thereof is 0.03-0.15 mm both exclusive and that the disposition pitch P thereof is 0.05-0.2 mm both exclusive. According to this constitution, a heat transfer rate on the refrigerant side can be improved.
Patent JP-H01283413-A (JP)
Title: Stably running material and reaction reducing material of substance in fluid
Inventor: NAKAJIMA TAMOTSU
IPC: F15D1/10
Filed: 1988-12-26
Abstract: PURPOSE:To stably run substance in fluid by existing a large number of fiber standing hair consisting of fiber lower than one denier of single fiber degree among the interface portion between the substance and the fluid. CONSTITUTION:The stably running material of substance in fluid is constructed in a way that a large number of fiber standing hairs consisting of fibers lower than one denier of single fiber degree among the interface portion between the substance and the fluid. As method for manufacturing superfine fiber lower than one denier of single fiber degree, there are methods in which fiber such as separation type, division type complex fiber is used and also separation, division superfining treatment is conducted by proper chemical or physical method adjusted to the fiber so as to get superfine fiber and superfining treatment is conducted by the removal of a component of complex fiber so as to get the superfine fiber.
Patent JP-H05145064-A (JP)
Title: Gate turn-off thyristor
Inventor: SHISHIDO CHOJI
IPC: H01L29/74
Filed: 1991-11-19
Abstract: PURPOSE:To provide a GTO thyristor having an anode short-circuiting structure in which a steady loss is reduced and a trigger gate current, a leakage current and a turn-off loss are reduced. CONSTITUTION:When an N4 cathode emitter layer 14 is projected to an anode electrode 5 side, an N5 anode short-circuiting part 15 is formed in a P1 emitter 10 layer of only a projected part, and when a gate electrode 3 is projected to the electrode 5 side, a P3 layer 16 having relatively shallower diffusion depth than that of the layer 10 is formed in an N2 buffer layer 11 of only a projected part. Thus, a steady loss can be reduced, and a trigger gate current, a leakage current and a turn-off loss can be reduced.
Patent JP-H07158917-A (JP)
Title: Ventilating fan unit
Inventor: NONOYAMA NOBORU
IPC: F24F7/013
Filed: 1993-11-30
Abstract: PURPOSE:To permit the ventilation of a room and the control in the room utilizing solar light energy simply. CONSTITUTION:A ventilating fan unit 1 is incorporated into the opening part of a building and is equipped with a frame 3, having a window 11 and attached to the opening, a ventilating fan 5, whose fan, connected to a motor 17, is arranged in a window 11 and is supported by the frame 3, an amorphous solar battery panel 7, whose light receiving surface 7A is supported by the frame 3 so as to be faced to outside, and a conducting means 35, supplying an electric power, generated by the amorphous solar battery panel 7, to the motor 17.
Patent JP-H02174264-A (JP)
Title: Multipolar bidirectional semiconductor control element
Inventor: SATO GOI
IPC: H01L29/747
Filed: 1988-12-27
Abstract: PURPOSE:To simplify the process for assembling into a box and reduce manufacturing manhours through abbreviation of combination selecting process for elements by unifying a plurality of pnpn-type two-terminal thyristors into one semiconductor chip. CONSTITUTION:A multipolar bidirectional semiconductor control element 25 uses an n-type as a first conduction type and a p-type as a second conduction type. It consists of five layer regions, i.e., a first semiconductor layer N6, a third semiconductor layer N7, and a fifth semiconductor layer N8, N9 consisting of n-type semiconductors, and a second semiconductor layer P10 and a fourth semiconductor layer P11, P12 consisting of p-type semiconductors. Resistors R1 through R8 are lateral resistance components of respective semiconductor layers. The semiconductor layer N8 and the semiconductor P11 are shorted by an electrode 28. The semiconductor layer N9 and the semiconductor layer P12 are shorted by an electrode 30.
Patent JP-H01173149-A (JP)
Title: Memory module
Inventor: OSHIKAWA KAZUNORI
IPC: G06F13/28
Filed: 1987-12-28
Abstract: PURPOSE:To perform the transfer of data at a high speed by producing automatically a series of addresses which are necessary for accesses to all access areas desired by an application module within a memory module based on the head address of a relevant area. CONSTITUTION:An address buffer 44 containing a counter function is used together with a bus interface 42 which controls a swap means 43. Then a series of addresses which are necessary for accesses to all access areas are successively produced by the buffer 44 under the control of the interface 42. An application module is not required to deliver said series of addresses after the output of the head address of a desired access area and therefore can use an address/ data line only for transfer of the read data. As a result, data can be transferred at a high speed compared with a conventional case where the address/data line is used alternately for transfer of the read address received from the application module and the data received from a memory module 40.
Patent JP-H05145151-A (JP)
Title: Solid state laser
Inventor: MASUDA HISASHI
IPC: H01S3/094
Filed: 1991-11-19
Abstract: PURPOSE:To enable an aberration as an entire image-forming system to be minimized and an excitating light to be converged on a solid state laser medium with a high light density even for a large number of wavelengths over a wide range of excitating light. CONSTITUTION:A condenser lens 9 allows output light of semiconductor lasers 1 to 3 from collimators 4 to 6 to be converged on a solid state laser medium 11 and the solid state laser medium 11 to be excited, where the collimaters 4 to 6 are constituted so that a color aberration for a wavelength where a color cannot be erased by the condenser lens 9 out of the wavelength of light from the semiconductor lasers 1 to 3 is compensated.
Patent JP-H01180743-A (JP)
Title: Forging method
Inventor: MITAMURA KAZUHIRO
IPC: B21J5/02
Filed: 1987-12-28
Abstract: PURPOSE:To improve the shape quality of a product by forming the thickness of the burr generated around a forging part thinner than a thin metal part at the thick metal part. CONSTITUTION:In case of forging the product consisting of the thick metal part of a linked boss part and the thin metal part of an I section part, deburring forging is executed among an inner punch 13, outer punch 14 and a lower die 12. In this case deburring is executed by setting the gap formed between the outer punch 14 and a die split face 20 smaller than the thin metal part at the thick metal part. Due to the buss F of the thin metal part of weak strength being formed larger than the burrs of thick metal parts A, B, a thick burr F is made to reinforce the product thin metal part when the product is knocked out from the die. Consequently the deformation of the knock out time of the product is prevented and the shape quality of the product is improved.
Patent JP-H02174568-A (JP)
Title: Piezoelectric actuator
Inventor: TAMEGAI MASASHI
IPC: H01L41/09
Filed: 1988-12-26
Abstract: PURPOSE:To obtain a non-magnetic rotary piezoelectric actuator having small size and weight which can produce high torque and can rotate with super low speed with micro step angle. CONSTITUTION:One end of the shaft 2 of a stopper disc 1 is threaded and a tightening nut 3 for applying pressure in the axial 2 direction is provided, and an expandable/contractable piezoelectric element 4 is secured to the end face at the inside of the stopper disc 1. A piezoelectric element 5 inclinable in parallel is secured to the expandable/contractable piezoelectric element 4, and a high friction board 6 is secured to the expansion/contraction piezoelectric element 4 on the piezoelectric element 5. Furthermore, a bearing 8 and a belleville spring 9 are arranged between the tightening nut 3 and a rotor 7 in order to promote expansion/contraction of the piezoelectric element 4 and smooth rotation of the rotor 7.
Patent JP-H09167369-A (JP)
Title: Optical device for optical disk
Inventor: TAKAHASHI TAKEO
IPC: G11B7/125
Filed: 1995-12-19
Abstract: PROBLEM TO BE SOLVED: To speed up the write-in speed while reducing unnecessary radiation, by inserting a switching element between a power source and an optical semiconductor element and providing a separate DC current supply source supplying a DC current to a semiconductor element. SOLUTION: In the case of read-out, a DC current to make semiconductor laser 101 emit light in a low power is supplied through LPF 104 and a high frequency signal outputted from an oscillator 103 is supplied to the semiconductor laser 101 via a capacitor 102 at the same time. In the case of writing, a writing pulse current source 110 is inputted to a base and the DC current source 108 is supplied to a collector, and the writing pulse current is directly supplied to the semiconductor 101 via NTN transistor Tr107. Thus, time constant of the LPF104, which prevents radiation of the high frequency signal supplied from the oscillator 103, can be set to a large value so as to become an optimal value. As a result, the high frequency signal is not radiated either.
Patent JP-H08156989-A (JP)
Title: Protection case of tape cartridge
Inventor: MIZUTANI HIKARI
IPC: B65D85/575
Filed: 1994-12-06
Abstract: PURPOSE: To visually recognize the remaining amount of a tape and the contents of an index card with a tape cartridge contained in an opaque book-case type protection case, and cut down the production costs. CONSTITUTION: A case main body 1 is formed of an opaque polypropylene sheet to reduce the raw material cost. A sheet window 21 is opened in an index sheet 18 to allow visually recognizing the tape remaining amount through the sheet window 21. Remaining amount indicators 23 are printed along the peripheral edge of the sheet window 21. Content description columns 22 are printed in a margin on a sheet surface 19 including the sheet window 21. First-third through-openings 30-32 are provided in a main wall 2 of the case main body 1 to visually recognize the sheet window 21, the remaining amount indicators 23 and the content description columns 22.
Patent JP-H05161977-A (JP)
Title: Spot welding machine
Inventor: MITSUI MASANORI
IPC: B23K11/11
Filed: 1991-12-13
Abstract: PURPOSE:To provide cylinder structure capable of reducing impact on the pressurized end of a movable electrode in a spot welding machine which moves and drives the movable electrode arranged at the position opposed to a fixed electrode by a cylinder. CONSTITUTION:When the cylinder 1 is made to an air cylinder, since a bypass path 15 is provided on the wall surface of the cylinder 1 so that a pressurized chamber 13 is communicated with a depressurized chamber 14 when air is supplied to the pressurized chamber 13 side of the cylinder 1 and a piston 4 is moved in the pressurizing direction to attain the vicinity of a pressurizing termination, the air of the pressurized chamber 13 flows from the bypass path 15 to the depressurized chamber 14 side and acts so as to brake the pressurization moving speed of the piston 4. Accordingly, the pressurizing action by the piston reduces the pressurizing speed at the pressurizing termination and the impact when materials to be welded are pressed between the movable electrode 2 and the fixed electrode 3 is controlled low.
Patent JP-H08159119-A (JP)
Title: Connecting material
Inventor: NOMURA RYOICHI
IPC: F16B7/18
Filed: 1994-12-07
Abstract: PURPOSE: To provide a connecting material minimized in a protrusive part in a shape of a connecting part of a structural material so that the fellow structural materials can be firmly connected. CONSTITUTION: A connecting material, which is for connecting the fellow long scaled structural materials, has an end face connecting part 3 of receiving an end face of the one structural material intended to be connected and a side face connecting part 5 of receiving a side face of the other structural material intended to be connected. In a reverse side of the end face connecting part 3, a bolt insertion hole 3a inserted through this end face connecting part 3 an a deep counterbore part 3c of inserting a bolt head part are formed, and in the periphery of the bolt insertion hole 3a on a surface of the end face connecting part 3, a vertical protrusion 3b relating to this surface is formed.  The side face connecting part 5 is formed in a surface in an opposite side to the end face connecting part 3, and this side face connecting part 5 has a connection structure of angle corresponding to a plurality of side surfaces of connecting to each other this structural material matched with its side surface shape.
Patent JP-H10169746-A (JP)
Title: Ball screw device with ball chain
Inventor: TERAMACHI HIROSHI
IPC: F16H25/22
Filed: 1996-12-11
Abstract: PROBLEM TO BE SOLVED: To provide a ball screw device capable of smoothly circulating a ball chain in a spirally endless ball raceway wound around a screw shaft and positively holding balls when the screw shaft is removed from a nut member. SOLUTION: In a ball screw device, a screw shaft is threaded to a nut member via a number of balls 3 and the balls 3 are arranged in line with a flexible ball chain 1. The ball chain 1 is formed with a number of balls 3 arranged in line at preset spaces and a connector belt 2 to hold the balls 3 in a rotatable manner and mutually connect the balls neighboring each other. The connector belt 2 has four belt members 5 formed in a belt shape along the spherical faces of the balls 3 so as to contact the balls 3. One belt member 5 is mutually connected to the other belt member 5 between the balls 3 neighboring each other, where the connector belt 2 is formed to be more constricted than the outer diameters of the balls 3.
Patent JP-H02176345-A (JP)
Title: Air conditioner
Inventor: AMAMIYA YUJI
IPC: F24F11/04
Filed: 1988-12-28
Abstract: PURPOSE:To discharge hot air to a position to the vicinity of a floor and to perform uniform temperature regulation throughout the whole of a room by providing a controller which actuates a moving plate so that a flow passage is narrowed when an amount of airflow from a blower is low during heating operation. CONSTITUTION:When, with a remote control switch pressed ON, the position of a flap 8 is arbitrarily determined, the flap 8 is controlled to the arbitrary position by a controller. When the switch is not pressed, the position of the flap 8 is automatically set by the controller. Especially, at a time during heating operation, the amount of airflow from a blower 4 is low, a velocity of flow is low and since hot air through a discharge port 6 is difficult to flow to a position in the vicinity of a floor surface, the flap 8 is controlled by the controller so that the flow passage of the discharge port 6 is narrowed and hot air is discharged at an angle of depression of approximate 70 deg.. When the flap 8 is control in a manner described above, the velocity of airflow of hot air through the discharge port 6 is increased and hot air flows to a position in the vicinity of an indoor floor surface, resulting in the possibility to regulate temperature throughout the whole of the interior of a room.
Patent JP-H09140789-A (JP)
Title: Injection needle for preventing infection
Inventor: HASUNUMA ISAO
IPC: A61M5/158
Filed: 1995-11-27
Abstract: PROBLEM TO BE SOLVED: To prevent the accident of piercing the hand, etc., of user and further to prevent the infection of disease by hiding the tip of needle at the time other than the time of practical use for injecting medicine or sampling blood. SOLUTION: The existence of ampule or holder is similar to the conventional case. When a piston cock B is pushed while abutting top ends 4b, 4b... of cylinder 4 on the target spot to pierce a main body 1 of injection needle, the cylinder 4 receives pressure between its tips 4b, 4b... and a joint cup 2 and the opening of cylinder 4 is expanded by the existence of slits 4a, 4a... so that the tip of main body 1 of injection needle can be pierced through the target spot. In this case, the expanding margin of cylinder 4 is estimated to be almost 1/3 of the whole. When the main body 1 of injection needle is pulled out of the target spot after usage, the cylinder 4 is returned into original state by elastic force of the slits 4a, 4a... and the tip of main body 1 of injection needle can be hidden.