baber/WOPTO huggingface dataset:
Patent JP-H08285742-A (JP)
Title: Sampler for thermosetting resin
Inventor: HIMEJI JUNICHI
IPC: C08G12/32
Filed: 1995-04-12
Abstract: PURPOSE: To obtain a sampler for thermosetting resin in which the sampling work is facilitated by preventing the piping from being clogged with solidified resin. CONSTITUTION: The sampler for thermosetting resin comprises a tube 2a for sucking a thermosetting resin 7 from a reaction furnace 1, a tube 2c for discharging the thermosetting resin 7 into the reaction furnace 1, a tube pump 3 having a tube 2b coupled with the tubes 2a, 2c, a delivery tube 4 branched from any one of the tubes 2a, 2c in the way thereof, and means 5 for feeding the resin to the delivery tube 4. The tube 2 can be mounted/demounted easily. Since the tube 2 can be mounted/demounted every time or every several times of production of thermosetting resin, the piping can be prevented from being clogged with solidified resin.
Patent JP-H11285854-A (JP)
Title: Portable spot welding machine
Inventor: HIGAMI MASANOBU
IPC: B23K11/24
Filed: 1998-03-31
Abstract: PROBLEM TO BE SOLVED: To provide a portable spot welding machine having high efficiency and safety in welding work by preparing a cooling means in each of transformer bodies, a part of a current supplying cable wherein flexibility is secured and a welding gun, and each electrically connected part. SOLUTION: In this portable spot welding machine, circulating water pipes are provided in transformer bodies 4, a supporting plate 5 and terminal plates 6 which are incorporated in a freely transferable welding machine main body 1, a cable cooling part 77 along a water pipe for a cable is provided in a part of current supplying cables 7 which are connected to secondary side terminals of the transformer bodies 4, and also a grip cooling water pipe along a connecting part which is covered with a grip is respectively provided in a welding gun 8.  Thereby, a piping passage between a cooling passage within the welding machine main body and an external operational part cooling passage is formed, and circulating cooling is executed in series or parallel by cooling water which is forcibly sent from a water supplying source consisting of a circulating cooling water storage tank 2 and a circulating pump 3.
Patent JP-S5713215-A (JP)
Title: Direct injection type diesel engine
Inventor: TAKAKUWA EIJI
IPC: F02B23/02
Filed: 1980-06-26
Abstract: PURPOSE: To improve intermixing of fuel and air by making the distribution pattern of atomized fuel from a fuel injection nozzle into a flattened rectangular shape and  by making the direction of the transverse axis of the distribution pattern of atomized fuel to coincide with the direction of a tangential line relative to a swirl of suction air within a combustion chamber.  
     CONSTITUTION: A fuel injection nozzle 10 includes a nozzle body 11 having a jet 11a at an end thereof, and a nozzle needle 12 inserted through the nozzle body 11 for reciprocal motion to open and close the jet 11a. The jet 11a is formed into a hole of a flattened rectangular shape by, for example, electrospark machining. The injection nozzle 10 is mounted at an obliquely upper position relative to a combustion chamber 2 such that the direction of the transverse axis of a distribution pattern of atomized fuel substantially coincides with the direction of a tangential line relative to a swirl A of suction air in the combustion chamber 2. Atomized fuel injected from the jet 11a is thus caused to present a flattened rectangular shape and is uniformly diffused and properly intermixed by the swirl A of suction air within the combustion chamber 2. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H02267487-A (JP)
Title: Vacuum induction furnace
Inventor: IBAN IRIICHI GUREBOFU
IPC: F27B5/05
Filed: 1989-04-07
Abstract: PURPOSE: To enable a vacuum induction furnace to manufacture ingots having different diameters, by forming steps in a melting pot so that the diameters of the steps may decrease toward a base. CONSTITUTION: Steps are formed in a melting pot 2 so that the diameters of the steps may decrease toward a base 3. At the time of melting ingots, the base 3 having the diameter corresponding to that of the pot 2 necessary for melting is attached to the rod 5 of a vertically reciprocating mechanism. Charging materials are put on the base 3 and the base 3 is guided to each step in the pot 2 by means of the rod 5. Then a tightly closed compartment 1 is evacuated by opening the compartment 1 with a cover plate 8 provided on a vacuum seal 9 and the coil of the inductor 7 corresponding to the used step in the pot 2, and then, the switch for melting the charging materials is turned on. The charging materials and alloying components are added to the pot 2 through a weighing instrument 12 and casting is performed.  All process operations required for control are performed by using a processing unit provided on the cover plate 8.
Patent JP-S63252619-A (JP)
Title: Cutter for forming corrugated fin
Inventor: EGAWA TSUNEO
IPC: B21D13/04
Filed: 1987-04-10
Abstract: PURPOSE:To equalize a forming pitch by uniformizing the height in bending a fin by creasing a formed fin R equiv. part with the projection of the tooth tip part at the front in the rotating direction of the cutter for forming a corrugated fin and the groove at the cutter tooth bottom equiv. part of the other part. CONSTITUTION:The material 2 for a fin is formed in a looper 7 between the cutters 3 for forming a corrugated fin and formed in corrugated shape as well, becoming at equal pitch by a pitch deciding device 4 and being cut 5 in the specified length. A projection 17 is provided at the tooth tip part near a looper forming tooth part 8 at the front in the rotating direction of this cutter 3 for forming a corrugated fin and a groove is provided at the meshing cutter equiv. part of the other part. With this projection 17, the R equiv. part 13 of the material 2 is creased 12 to uniformize the folding height of the fin within about + or -0.05mm. The fin coming out of the pitch deciding device 4 is formed at equal pitch and the heating efficiency of the corrugated fin can be improved.
Patent JP-H02265036-A (JP)
Title: Optical head
Inventor: YAMAMIYA KUNIO
IPC: G11B11/105
Filed: 1989-04-05
Abstract: PURPOSE:To facilitate the assembly of an optical head by providing a reflection type hologram between a light source and a condensing means, and photodetecting a diffracted light reflected by this hologram by a front monitor use photo-detector. CONSTITUTION:A beam reflected by a recording medium 4 passes through an objective lens 3, made incident on a diffraction hologram 21, '0'-order and + or -first order diffracted beams are generated, and a '0'-order beam returns to a semiconductor laser 1. On the other hand, a + or - first order beam is converged to an error signal use photodetector 5 placed on a substrate 7, brought to photoelectric conversion, and a focus and tracking error signal and an information signal are obtained. On the other hand, a '0'-order beam emitted from the laser 1 and reflected by a reflection type hologram 22 is converged to a front monitor use photodetector 8, and brought to photoelectric conversion. An output of the photodetector 8 is sent to an APC circuit, and a light emission output of the laser 1 is adjusted automatically. In such a way, a front light of a light source can be monitored, and the APC which is not influenced by a back talk noise caused by a return light can be realized.
Patent JP-S5211799-A (JP)
Title: Traffic signal control unit
Inventor: OGAWA KUNIO
IPC: G08G1/07
Filed: 1975-07-18
Abstract: PURPOSE: To provide the control unit with a fail-safe function by input the power supply to the acoustic signal circuit corresponding to the display only while there is a power supply for lighting the signal lamp. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S59213049-A (JP)
Title: Driving device of inversion type tape recorder
Inventor: KOORI NAOMICHI
IPC: G11B15/29
Filed: 1983-05-18
Abstract: PURPOSE:To simplify a titled device and to obtain it at a low cost by constituting so that a magnetic head turning lever and a tape wind driving system selecting lever are turned in one body through an elastic member at the time of a recording and reproducing mode, and they are turned separately against the elastic force of an elastic member at the time of other mode. CONSTITUTION:In a forward recording and reproducing mode state, when a tape running direction switching lever 25 is operated, as for a magnetic head turning lever 8, a projecting pin 8b is brought into slide-contact with a cam groove 15, moves and turns, and a magnetic head 3 is rotated half and switched to reverse. A tape running direction selecting turning lever 11 turns centering around a turning shaft 9 in one body with the turning lever 8 through the elastic force of a torsion spring 10, and forms a reverse driving system. When a switching operation is executed to other mode than the recording and reproducing mode, a turning lever 26 pushes back a head base 2 in the direction as indicated with an arrow X1, and separates the head 3 from a tape 22. The turning lever 8 and the magnetic head 3 do not turn. The turning lever 11 turns, and stops at a middle position between the forward and reverse recording and reproducing mode.
Patent JP-S63252070-A (JP)
Title: Feedback clamp circuit
Inventor: SUZUKI YOUSUKE
IPC: H03K5/08
Filed: 1987-04-08
Abstract: PURPOSE:To prevent an output signal from being parted largely from a clamp potential by closing an analog switch circuit bypassing a sample holding circuit if the clamp pulse is missing for a prescribed period or over. CONSTITUTION:An input signal is inputted to a noninverting input terminal of a differential buffer circuit 1 and its output is outputted externally and inputted to a sample holding circuit 4. The output of the sample holding circuit 4 is given to an inverting input terminal of the differential buffer circuit 1 via an LPF 3 and a differential amplifier 2. If a clamp pulse is not inputted over a long time, a control signal is outputted from a pulse detection circuit 10 to close an analog switch circuit 11 thereby closing a negative feedback loop resulting in fixing the average potential of the input signal to a reference potential VREF.
Patent JP-2000281393-A (JP)
Title: Quick lime-containing powder and its production
Inventor: ASAUMI JUNJI
IPC: C04B2/02
Filed: 1999-03-30
Abstract: PROBLEM TO BE SOLVED: To produce a quick-lime containing powder which has an increased quick lime content as compared with that of the intermediate stage product by classifying an intermediate stage product withdrawn from a suspension preheater in a cement production process and picking out a fine particle fraction. SOLUTION: The above cement production process comprises: mixing raw materials, i.e., limestone, clay, siliceous stone and iron oxide in an appropriate ratio to obtain a raw material mixture; subjecting the raw material mixture to drying and fine pulverization with a raw material mill to form a cement raw material; firing the cement raw material with a suspension preheater kiln provided with a cyclone type suspension preheater placed upstream from a rotary kiln to form cement clinker; adding gypsum to the cement clinker; and pulverizing the resulting mixture with a finishing mill to produce a cement product.  The production process of this quick-lime containing powder comprises: withdrawing a portion of an intermediate stage product which is preheated by the suspension preheater in the above cement production process and contains quick lime converted from limestone in the cement raw material through this preheating, from the preheater prior to entering in the intermediate stage product into the rotary kiln;  and subjecting the withdrawn intermediate stage product to centrifugal classification, wherein, by setting the boundary particle size of particle classification to an appropriate value, most of the quick lime particles having fine particle size and low density are collected on the fine particle fraction side to produce the objective quick-lime containing powder having a quick lime content enhanced up to >=60% as compared with an about 40% quick lime content of the intermediate stage product.
Patent JP-H10292010-A (JP)
Title: Preparation of fluorine-containing elastomer having unsaturated bond
Inventor: KO REISHO
IPC: C08F214/22
Filed: 1997-03-21
Abstract: PROBLEM TO BE SOLVED: To provide a method for preparing a fluorine-containing elastomer having an unsaturated bond which can be used, for example, as an effective component of an adhesive for electronic parts which requires excellent resistance to heat. SOLUTION: This fluorine-containing elastomer having an unsaturated bond is prepared by dehydrofluorinating a low molecular weight fluorine-containing elastomer by a reaction thereof with an alcoholic solution of potassium chloride. An adhesive having excellent resistance to heat is formed by compounding the fluorine-containing elastomer having an unsaturated bond with, as a curing agent, a polymide compound and an epoxy resin. This can be used, for example, as the adhesive for electronic parts.
Patent JP-H05257001-A (JP)
Title: Optical component
IPC: G02B5/30
Filed: 1992-03-11
Abstract: PURPOSE:To obtain the optical head which is made thinner by cutting a spherical shape into a hemispherical shape with a plane containing its diameter. CONSTITUTION:The spherical lens 13 is formed increasing in refractive index toward its center and cut into the hemispherical shape with the plane 14 containing its diameter. Then, the hemispherical lens 13 is arranged with the plane slanted at 45 deg. to the optical axis of a laser diode 11. The laser light emitted by the laser 11 is therefore converted by a collimator lens 12 into parallel light, which is made incident on the lens 13. This laser light is reflected upward in a figure by the plane 14 and converged on a disk 15. The laser light which is reflected by the disk 15 is made incident on the lens 13, transmitted through the plane 14, and made incident on a lens 16. The lens 16 converges the incident light in a photodetector 17. Consequently, information recorded on the disk 15 can be reproduced from the output of the photodetector 17.
Patent JP-S58204889-A (JP)
Inventor: IWAMATSU SEIICHI
IPC: D21H13/40
Filed: 1982-05-24
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-S61247063-A (JP)
Title: Structure of lead frame
Inventor: SENBA NAOHARU
IPC: H01L23/544
Filed: 1985-04-24
Abstract: PURPOSE:To clarify the name of a frame or a product with high recognition sensitivity even when noble metal plating is executed by forming holes of characters and numerals to be identified necessarily to sort the name on the part of a frame. CONSTITUTION:Holes 2 of the shape of characters and numerals to be identified necessarily to sort the name on part of a lead frame 1. For example, the name of the frame 1 or product is formed entirely by etching method, completely punched by a pressing method at part of the frame with holes 2 in a structure that a contrast is completely provided in case of identifying.
Patent JP-S5211879-A (JP)
Title: Semiconductor integrated circuit device
Inventor: SATOU KAZUO
IPC: H01L27/092
Filed: 1975-07-18
Abstract: PURPOSE:The occurrence of a thyristor phenomenon generated due to the parasitic bipolar Tr in a complementary field-effect transistor (CMOS) shall be checked.
Patent JP-H10279779-A (JP)
Title: Epoxy resin composition for printed circuit board and prepreg and metal-clad laminated board produced by using the composition
Inventor: ARATA MICHITOSHI
IPC: C08J5/24
Filed: 1997-04-07
Abstract: PROBLEM TO BE SOLVED: To provide an epoxy resin composition for printed circuit board giving a printed circuit board having low hygroscopicity, excellent heat resistance, high Tg value, thermal discoloration resistance, good high-temperature mechanical properties, good electrocorrosion resistance, metal migration resistance and high electrical insulation and provide a prepreg and a metal-clad laminated board produced by using the composition. SOLUTION: This epoxy resin composition for printed circuit board contains (a) an epoxy resin produced by converting a condensation product of a phenolic compound and hydroxybenzaldehyde to glycidyl ether, (b) a condensation product of bisphenol A and formaldehyde, (c) a flame-retarding agent, (d) a cure accelerator and (e) one or more components selected from phenolic antioxidant and organic sulfur-compound antioxidant. The metal-clad laminated board is produced by drying the composition impregnated into a substrate, laminating the obtained prepreg to a metal foil and hot-pressing the laminate.
Patent JP-H07290563-A (JP)
Title: Blow molding method
Inventor: KOHAMA YUKINORI
IPC: B29C49/78
Filed: 1994-04-26
Abstract: PURPOSE:To form a parison having desired wall thickness and length simply and easily by any person. CONSTITUTION:The weighing stroke S of an accumulator is set on the basis of a necessary resin wt. W calculated from the objective wall thickness (t) and length L of a parison and the reduction quantity of wall thickness caused by the drawdown phenomenon generated corresponding to stroke length (x) is corrected on the basis of the die gap set value Dt obtained by dividing the objective thickness (t) by a swell ratio R to set a die gap final set value Df to form a desired parison.
Patent JP-S57204373-A (JP)
Title: Sealing device for pressurized fluid
Inventor: YOSHITOMI YUUJI
IPC: F16J15/18
Filed: 1981-06-10
Abstract: PURPOSE:To provide a seal which is capable of sealing superhigh-pressure fluid at a slide portion and is excellent in durability by disposing a concave cavity of a concave back-up ring facing a ring circular in section to be loaded in a groove of a sealing portion. CONSTITUTION:An apparatus for sealing oil pressure P added in a working pipe 5 by fitting a rod 2 in a cylinder 1 comprises a gasket 7 mounted on the leading end portion of the rod 2, a stuffing box 8, an O-ring 3 mounted on the stuffing box 8, a back-up ring for preventing the O-ring 3 from protruding, a packing gland 10 for pressing the stuffing box 8 against the gasket 7, and a clamping bolt 11. The back-up ring 9 is ring-shaped, with a concave radial section, and is formed of urethane rubber, whereby when the pressure P works on the ring 9, the edge part 9a is pressed against the inner surface of the cylinder 1 by its self-tightening effect.
Patent JP-S60232513-A (JP)
Title: Method for connecting optical fiber by welding
Inventor: OONISHI MASATOSHI
IPC: G02B6/255
Filed: 1984-05-01
Abstract: PURPOSE:To prevent generation of a very small flaw or crack and local generation of thermal strain by dissolving away coating parts by a soln. from optical fibers, holding mechanically such fibers, butting the connecting end faces to each other and heating the end faces with specified power under electric discharge thereby welding the end faces. CONSTITUTION:The cut optical fiber is immersed for the specified length from the end thereof into sulfuric acid 12 in a vessel 13 heated by a heater 14 to remove the coating part 1 of the optical fiber without mechanical external force. The fiber is immersed into the solvent, which is acetone 15, in a vessel 16. The fiber end is thus cleaned under light stirring. The coating part 1 of the optical fiber is put into the V-groove 5a for fixing the optical fiber of a supporting base 5 and is grasped and fixed from above by a retaining jig 6. The contact from the outside is thus eliminated in the stage of connecting the bare optical fibers 2 by welding and therefore the generation of a flaw is prevented. Both bases 5 are brought into proximity to each other to butt the connecting end faces of the fie bers 2 and thereafter the connecting ends are heated under the gas discharge by discharge electrodes 8 by which the connecting ends are welded and connected.
Patent JP-S62250227-A (JP)
Title: High-performance carbon fiber from acrylic fiber
Inventor: IMAI YOSHITAKA
IPC: D01F9/22
Filed: 1986-04-18
Abstract: PURPOSE:The title fiber which has specific ranges of nitrogen content, crystal orientation, the expansion and laminar thickness of carbon network in the carbon fiber, thus giving carbon fiber composite materials which are used in primary structure in the fields of air craft and space, because of its high tenac ity and medium elasticity. CONSTITUTION:The objective carbon fiber has 40-65Angstrom  of La, which is determined by X-ray diffractometry and shows the expansion of carbon network in the carbon fiber, 17-28Angstrom  of Lc, which shows the laminar thickness of the network, more than 81% of crystal orientation, which is determined from the profile in the azimuth direction of (002) diffraction, 0.5-2.5wt% of nitrogen content, more than 450kg/mm<2> tenacity and 26-33tons/mm<2> modulus according to the strand-testing method. The fiber is obtained by preoxidizing the precursor prepared by making an acrylonitrile copolymer into filaments, in an oxidative atmosphere at 200-400 deg.C under gradual temperature-increasing condition and carbonizing the preoxidized filaments in an inert atmosphere at low temperature of 300-700 deg.C, then at high temperature of 1,000-1,900 deg.C.
Patent JP-2000287390-A (JP)
Title: Energy storing and discharging device
Inventor: KAWASAKI HIROTAKA
IPC: H02J3/30
Filed: 1999-03-30
Abstract: PROBLEM TO BE SOLVED: To obtain an energy storing and discharging device which stores electric power at the night time when an electric rate is low and discharges the stored electric power at the day time when the rate is high in an electric light contract based on time-slot rates, and which can be used with a photovoltaic power generation. SOLUTION: During the time when a time-slot discriminating unit 13 discriminates to be the night slot, energy is stored by an energy storing and discharging means made up of a double-way frequency converter 2, a power- generating electric motor 3 and a flywheel 4. During the time when the discriminating unit 13 discriminates to be the day slot, the stored energy is discharged. When the means is used with a photovoltaic power generation and if the rate of change of the electric power generated by a photovoltaic power generating means exceeds a given value, the storage and discharge of energy is controlled by the energy storing and discharging means in such a way as to suppress the rate of change.
Patent JP-H05292564-A (JP)
Title: Transmission/reception system
Inventor: NAGAMOTO SHUNICHI
IPC: H04B1/40
Filed: 1992-04-09
Abstract: PURPOSE:To reduce the power consumption required for wait for a signal to extend the life of a battery by interruptedly waiting for the signal. CONSTITUTION:When a transmission equipment 1 requires transmission, the transmitting operation is started based on a first cyclic timing signal 2a generated by a first timer means 2. Meanwhile, a reception equipment 11 periodically operates a reception circuit to wait for the transmission signal from the transmission equipment 1 based on a second cyclic timing signal 12a which is generated by a second timer means 12 and has a period equal to 1/(an integer) of the period of the first timing signal 2a. Thus, the wait receiving operation with a low power consumption is possible because it is sufficient if the power source of the reception circuit is turned on only at the time when the signal may be transmitted from the transmission equipment 1.
Patent JP-2000280057-A (JP)
Title: Manufacture of light metallic member
Inventor: SAKAMOTO KAZUO
IPC: C22F1/00
Filed: 1999-03-30
Abstract: PROBLEM TO BE SOLVED: To obtain a light metallic alloy which has good creep resistance and excellent forgeability when the light metallic member is manufactured by semi-molten injection molding. SOLUTION: A molten light metal is injected and filled in a molding cavity of a molding die under a semi-molten condition, so as to obtain a molding (a light metallic member). At that time, the molten light metal is set to have 5% or more of solid phase rate and 50 μm or more of average solid phase diameter, and is injected into the molding die. Also, the molten light metal is set to have 60% or less of solid phase rate and 200 μm or less of average solid phase diameter, so as to apply hot forging to the molding.