baber/WOPTO huggingface dataset:
Patent JP-H11192700-A (JP)
Title: Ink jet printer head and manufacture thereof
Inventor: SAKASEGAWA KIYOHIRO
IPC: B41J2/045
Filed: 1998-01-30
Abstract: PROBLEM TO BE SOLVED: To provide an ink jet printer head having multiple precise ink pressurizing chambers having uniform volumes and a method for efficiently manufacturing the ink jet printer head at a low cost whereby a defect of a partition wall forming the ink pressurizing chamber is reduced so that a yield in the production is improved, the productivity is increased and precise and continuous partition walls can be formed in one process. SOLUTION: A composition material 4 for forming partition walls having a plasticity is formed in a layer shape with a uniform thickness on a substrate 3 having nozzles and a molding 5 is pressed to the composition material 4 so that composition material 4 is plastically deformed, then a partition wall forming body 8 forming a space 9 corresponding to the nozzle 2 for ejecting ink is formed. The composition material 4 is heated together with the substrate 3, then a debinding process is applied thereto and they are baked to be integrated. A plate shaped cap body 11 is bonded to an end of the top section of a partition wall 10 of the formed integrated material to form an ink pressurizing chamber 12. Thus, an ink jet printer head is manufactured.
Patent JP-S56115546-A (JP)
Title: Semiconductor device
Inventor: KOSHIYOUBU MASANORI
IPC: H01L21/761
Filed: 1980-02-16
Abstract: PURPOSE:To improve the electric characteristics of and to enhance the integration of the semiconductor device having a low resistance buried layer as a part of an element region by forming the buried layer of the first region with the first impurity and the second region with the second impurity having larger diffusion coefficient than that. CONSTITUTION:An N<-> type epitaxial collector layer 2 is formed on a P type substrate 1 and a P type base 6 and N type emitter 7 are sequentially formed on the surface of the layer 2 in the bipolar semiconductor device. N<+> type buried layers 3a, 3b are formed between the substrate 1 and the epitaxial layer 2. The diffusion coefficient of the impurity of the layer 3a is small, and the diffusion coefficient of the impurity of the layer 3b is large. A collector pickup N<+> type region 5 is connected to the layer 3b. Thus, the output resistance can be lowered and the expansion of the pickup region can be reduced. Accordingly, the integration can be reduced. This can be applied to the photoelectric conversion diode and the junction gate type FET having buried layer.
Patent JP-H09190931-A (JP)
Title: Reactor
Inventor: KATO TAKASHI
IPC: H01F27/29
Filed: 1996-01-08
Abstract: PROBLEM TO BE SOLVED: To obtain a reactor wherein lead wires of a coil can be connected easily by forming respective lead wires for the coil in advance which is subjected to be fitted to a fitting plate, in such a shape that they may be brought into contact with the terminals on a terminal plate. SOLUTION: Respective lead wires 1a and 1b of beginning and end in a coil 1 are formed in advance on the specified positions to which a terminal plate 4 provided with terminals 5 is fitted. Then, when the terminal plate 4 is fitted to a terminal fitting part 3b through automization for example, the lead wires 1a and 1b are held by the terminal 5 automatically, and they are brought into contact with the terminal 5. That is, since the wires 1a and 1b are thick, they are flexible and rigid, so that it can be bent freely thanks to its material while its shape is kept as it is, and it can be formed into the specified shape. Therefore, the connection work can be made easy, and the automization thereof be also realized easily.
Patent JP-S60161675-A (JP)
Title: Manufacture of field-effect transistor
Inventor: WATASE MANABU
IPC: H01L23/522
Filed: 1984-02-02
Abstract: PURPOSE:To effectively intercept it for a solder material to intrude in up to the electrode part and diffuse at the assembling time of a field-effect transistor according to a flip-chip system by a method wherein a conducting metal layer to be used for forming a thickly plated bridge layer consists of a conductive metallic material having a barrier effect to the solder material. CONSTITUTION:In the manufacturing method of GaAs MESFET, the only one thing different from the conventional method is only a material for a conducting metal layer 11A to be used for forming a thickly plated bridge layer 13 in the major process and the rest is quitely the same. A multilayer structure containing high-melting point metals such as Pt, Mo, Ta, W and so forth having a barrier effect to a solder material is suitable for the conducting metal layer 11A and the thickness needs to be more than 500Angstrom . In consideration of the adhesion to a thickly plated layer 9, the lowest layer of the multilayer structure is made of Cr or Ti, and for forming the thickly plated bridge layer 13, the uppermost layer is made into a three-layer structure consisting of Au. The assortment of the metal layer 11A can be properly selected. Even though the conducting metal layer 11A to be used for forming the thickly plated bridge layer 13 is made into such the multilayer structure containing high-melting point barrier metals, no hindrance arises at all in progress of the process.
Patent JP-S58136620-A (JP)
Title: Epoxy resin composition
Inventor: TOMINAGA KAORU
IPC: C08L63/00
Filed: 1982-02-08
Abstract: PURPOSE:An injection-moldable epoxy resin composition useful in the preparation and sealing of electric and electronic parts and in the production of mechanical parts, prepared by mixing an epoxy resin, a novolak resin and urea. CONSTITUTION:The titled composition is obtained by mixing 100pts.wt. epoxy resin (e.g., polyglycidyl ether) with 20-120pts.wt., pref. 40-100pts.wt., novolak resin (e.g., one prepared by condensing a phenol with formaldehyde in the presence of an acid catalyst, preferably one having 2-10 nuclei and a softening point of about 50-140 deg.C) and 0.1-20pts.wt., pref. 1-10pts.wt., urea. It is further possible to accelerate curing in the mold without adversely affecting the stability in the cylinder of an injection molding machine by adding dicyandiamide. The amount of dicyandiamide added is preferably about 0.1-5pts.wt. per 100pts.wt. epoxy resin.
Patent JP-S56116128-A (JP)
Title: Direct current constant voltage and current power supply unit
Inventor: TOYOSHIMA SUKEAKI
IPC: G05F1/56
Filed: 1980-02-19
Abstract: PURPOSE:To realize a precise setting of the load current, by securing such connection as to prevent the current flowing to both the output voltmeter and ammeter from flowing to the current detection resistance. CONSTITUTION:One of the outputs of the error amplifiers A1 and A2 is selected via the OR circuit G1 and then switched automatically according to the state of the load and in the form of a constant voltage or current action. Then the output voltmeter VM is connected between the output of the impedance conversion amplifier A3 and the negative pole output terminal NT. Thus the current Iv flowing to the meter CM flows in a route of the terminal NT, power source E, transistor TRQ1, common line COM1, auxiliary power source E2 and amplifier A3 each, and does not pass through the current detection resistance RD. On the other hand, the output ammeter AM is connected between the line COM1 and the output of the amplifier A3 and reads the voltage drop of the resistance RD via the amplifier A3. As a result, the current IA flowing to the meter AM does not flow to the resistance RD.
Patent JP-H09213992-A (JP)
Title: Visible light emitting diode manufacturing method
Inventor: HIROYA MASUMI
IPC: H01L33/30
Filed: 1996-02-05
Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method whereby a high emission efficiency type visible light emitting diode can be easily obtained. SOLUTION: In a boundary layer forming step a, a boundary layer having a high etching rate to concn. HCl is formed on a substrate 44. In a light emitting part forming step c, semiconductor layers on the upper side of the boundary layer 44 are treated to grow crystals, thereby forming a light emitting part 40. A separation step e, it is etched by concn. HCl to remove a boundary layer 46, thereby separating this part 40 from the substrate 44. Since the substrate 44 which would absorb the light emitted by an active layer 14 corresponding to a light emitting layer does not exist on the back side of the produced LED 10, a light incident on this back side is reflected at the back side of the LED 10 (i.e., substrate 26) and emitted from the front side of the emitting part 40, the output face.
Patent JP-H03227330-A (JP)
Title: Preparation of protein thin film
Inventor: NAKAGAWA TORU
IPC: C08J5/18
Filed: 1990-01-31
Abstract: PURPOSE:To readily prepare the subject pure thin film regularly fixed on a substrate by dissolving a protein in pure water, etc., developing the resultant protein solution on the water surface of a salt solution at a high salt concentration and moving the developed film further onto pure water. CONSTITUTION:A protein solution prepared by dissolving a protein in pure water or a solution at a low salt concentration is developed on the water surface of a salt solution at a high salt concentration to prepare a protein thin film. The resultant thin film on the water surface of the salt solution is then moved onto pure water to afford the objective thin film. Furthermore, the aforementioned thin film is prepared, then preferably transferred and taken on a substrate to prepare the protein thin film thereon.
Patent JP-H07224800-A (JP)
Title: Liquid transfer device
Inventor: MORI SHIGEKI
IPC: F04F5/54
Filed: 1994-02-16
Abstract: PURPOSE:To provide a method by which a toxic gas like a radio-active gas generated on driving a liquid transfer device composed of a liquid diode is prevented from emitting outward. CONSTITUTION:A compressed gas discharged from a decompression jet pump 14b during the suction process of a piston tank 11 for pumping water is refurned to a compression gas feeder 16 again through a filter 18 and a non-compressive liquid and a pumping unit are used as the driving source of the suction and delivery of the piston tank for pumping water.
Patent JP-H07227709-A (JP)
Title: Cutting device
Inventor: HINO KOJI
IPC: B23C3/02
Filed: 1994-02-16
Abstract: PURPOSE:To avoid cutting-in becoming 0 in a case in which a surface right- angled to a work axis center is machined, and improve tool longevity and machining precision, in the case of a cutting which conducts cutting at the whole periphery of a work with the work axis center as a center by rotating mutually a cutting tool and the work around the work axis center while the cutting tool is being rotate around its axis center. CONSTITUTION:One center line Ot which is the axis center of a milling machine (a cutting tool) 20 is made to incline in regard to the axis center Ow of a work 10, and while the milling machine 20 is being rotated drivingly around the one center line Ot in this state, it is made to revolve around the work axis center Ow, and the end surface 36 and cylinder outer periphery surface 40 or the like of the work 10 is cut. The respective chips 34a-34f of the milling machine 20 are swung up and down following rotation around the one center line Ot, and conduct the cutting of the work 10 only in the vicinity of their descent ends, so even at the time of the machining of an end surface 36 that is right-angled to the work axis center Ow, there is no brushing of a machining surface in the state of zero cutting-in.
Patent JP-H05212254-A (JP)
Title: Hollow-fiber membrane module filter
Inventor: NISHIMURA TETSUO
IPC: B01D65/02
Filed: 1992-02-04
Abstract: PURPOSE:To prevent the clogging of a hollow-fiber membrane by providing an automatic air vent valve to be opened by water pressure to an air vent and/or to a filtered water outlet and periodically blowing air against the membrane. CONSTITUTION:One or both ends of a porous hollow-fiber membrane bundle are fixed by an adhesive, the inside of the membrane on one or both ends is used an open hole, and single or plural hollow-fiber membrane modules 9 are placed in a vessel. A raw water feed port 10, a filtered water outlet 14, a water discharge port 12 and an air vent 13 are furnished to the vessel. Automatic air vent valves 6 and 7 to be opened by water pressure are provided to the air vent 13 and/or to the filtered water outlet 14. Consequently, a liq. contg. fine particles and suspended matter is continuously filtered, air is periodically blown, and the membrane is not clogged.
Patent JP-H10214010-A (JP)
Title: Image forming method and apparatus therefor
Inventor: ANDO TSUTOMU
IPC: G03G21/10
Filed: 1997-01-31
Abstract: PROBLEM TO BE SOLVED: To form high-quality images by stably and surely removing the toner stains on an intermediate transfer medium at the time of transferring the toner image formed on a photosensitive on the intermediate transfer medium, then forming the image by transferring and fixing the toner image to a medium to be transferred. SOLUTION: The surface of a cleaning member which comes into contact with the intermediate transfer medium in order to remove the deposits inclusive of the residue, etc., of toners from the intermediate transfer medium is formed of a resin having a glass transition point below the m.p. of a binder forming the toners or a resin compsn. consisting essentially of the resin. At the time of cleaning, the surface of the cleaning member is controlled to the temp. above the glass transition point and the deposits inclusive of the toner residue on the intermediate transfer medium are moved to the cleaning member by the tacky adhesivness of the resin. Such cleaning member is recommended to have a surface layer coated with a polyester resin having the m.p. of 110 deg.C and the glass transition point of 60 deg.C in the surface of a metallic base material.
Patent JP-S63187731-A (JP)
Title: A/d converter
Inventor: YAMAZAKI TAKASHI
IPC: H03M1/38
Filed: 1987-01-29
Abstract: PURPOSE:To reduce the circuit scale and perform conversion in a half time of a conventional successive comparison type A/D converter by providing plural comparators. CONSTITUTION:Three gates 6a are turned on through a line 11 by a gate controller 50. A voltage 3/4VREF out of voltages divided by a ladder resistance 2 is inputted as the reference voltage to a comparator 1a, and voltages 2/4VREF and 1/4VREF are inputted as reference voltages to comparators 1b and 1c. Comparators 1a-1c simultaneously compare respective reference voltages with an analog input AN and input results to a decoder 30. The decoder 30 simultaneously detects data of upper two bits from-outputs of three comparators in accordance with a decoding table and transfers this data to a register 4. Simultaneously, lines out of lines 7-10 are activated correspondingly to data to turn on three corresponding gates. Thus, A/D conversion is performed at two-fold conventional speed or more.
Patent JP-H03225139-A (JP)
Title: System for ventilating dwelling
Inventor: UEDA TOSHIMITSU
IPC: F24F7/06
Filed: 1990-01-29
Abstract: PURPOSE:To prevent the inside air pressure of a dwelling from changing to a negative pressure which causes entrance of the open air by keeping the amount of exhaust of a ventilation unit to a minimum and keeping high operating condition of an air fan during the operation of a kitchen range fan. CONSTITUTION:The open air is fed to a ventilation unit 1 housed in the ceiling of a utility room in a condominium and is heated by a heat exchanger 2, the heated air is sent into a ceiling chamber by an air fan 3. On the other hand, air in a room is took out through air outlets 13-15 arranged at the ceilings of a bath room, a dressing room, and the like, and is sent to the ventilation unit 1 through an exhaust duct 16. After the heat exchanger 2 withdraws the heat of the air took out from the room, the air is exhausted to the outside of the room by an exhausting fan 4. A control device 11 changes the operating condition to 'weak'condition or 'strong'condition so as to control the amount of air to be supplied by the air fan 3 and the amount of exhaust air to be exhausted by the exhausting fan 4 in accordance with the operating condition, and the control device 11 ensure the amount of the open air required in the room. During the operation of kitchen range fan 12, a solenoid damper 9 is turned into a minimum open so that the ventilation unit 1 minimized its open, and the air fan 3 is driven under the strong condition. Consequently, it is possible to prevent the inside air pressure of the dwelling from changing to a negative pressure.
Patent JP-S60172664-A (JP)
Inventor: FUJII MITSURU
IPC: B65D47/06
Filed: 1984-02-07
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-S55113854-A (JP)
Title: Manufacture of aluminum alloy with superior ductility for impact extrusion and impact extruded tube
Inventor: YANAGIDA KIYOMI
IPC: C22C21/00
Filed: 1979-02-21
Abstract: PURPOSE: To manufacture an impact extruded tube having superior ductility and hard to rupture by impact extruding an Al-Ni alloy slab contg. a specified small amt. of Ni to work it into the desired tube followed by annealing for softening.  
     CONSTITUTION: An adequate amt. of pure Al and an adequate amt. of an Al-Ni mother alloy are melted to refine an Al-Ni alloy contg. Ni 0.2W2.0% as an essential component. An ingot of this alloy is rolled to a plate of 6mm thickness, and a slab of 19mm outside diameter is taken out by punching. This slab is annealed and impact extruded to manufacture a tube of 120μ thickness. This tube is then annealed at 250W600°C for about 1W30min to manufacture a tube having verysuperior ductility and hard to rupture. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S52103117-A (JP)
Title: Stop zone detecting device for railway vehicle
Inventor: YAMAJI MUTSUHIKO
IPC: B61H7/00
Filed: 1976-02-25
Abstract: PURPOSE: To accurately detect a stop zone by providing convex and concave cams in stop zone and by corresponding the cams to a zone detecting mechanism provided at a vehicle to actuate a switching mechanism on or off. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H07208820-A (JP)
Title: Freezer
Inventor: YAMAMOTO TSUTOMU
IPC: F25B1/00
Filed: 1994-01-21
Abstract: PURPOSE:To continue to perform the function of a freezer without performing any repairing work by a method wherein a plurality of expansion devices which can be used to be changed over are arranged in parallel between the condensor and the evaporator of the freezer and they are used to be changed over from each other. CONSTITUTION:Capillary tubes 4A and 4B acting as expansion devices are arranged in parallel between a condensor 2 and an evaporator 7. Inlet ports of the two capillary tubes 4A and 4B are provided with a pressure sensor P1 and outlet ports of the two capillary tubes 4A, 4B are provided with a pressure sensor P2. Signals obtained from these pressure sensors P1 and P2 are inputted to a control device 6 and processed there. That is, when the capillary tube clogged with sludge 4A and the pressure difference between an inlet pressure and an outlet pressure of the capillary tube 4A exceeds a predetermined value, a signal from the control device 6 is outputted to a three-way valve 5 and then a flow passage of refrigerant is changed over from the initial used capillary tube 4A to a changing-over capillary tube 4B. Accordingly, the function of the freezer can be easily maintained without repairing it at a factory and the like.
Patent JP-S61180896-A (JP)
Title: Ball cleaning system of type for preventing adherence of shell to seawater heat exchanger
Inventor: KATAYOSE HIROMITSU
IPC: F28G1/12
Filed: 1985-02-06
Abstract: PURPOSE:To prevent shells from adhering and growing within the ball cleaning system on the tube inner surface of the seawater heat exchanger by constituting the system so that a three-way changeover ball valve and a fresh water pouring line having an internal pressure are provided on the suction side, and fresh water is filled in the interiors of pipelines of all lines from a ball take-out point from a main cooling water system to a ball pouring point to the main cooling water system at the time over than the time of ball circulation by the three-way changeover ball valve. CONSTITUTION:A fresh water feed pipe 19 is provided, at it is connected to a three-way changeover ball valve 22. At the time of ball circulation, seawater and a sponge ball 7 pass through the inside of a ball valve 22. At the time of substituting fresh water after the ball circulation, a ball circulation pump 9 is put into a driving state, seawater can be substituted for fresh water in a space between the ball valve 22 and a ball pouring point 13. However, a pump inlet valve 17 and an outlet valve 10 are closed, and a sponge ball is taken out from a ball feed and recovering device 8. Further, the pressure of the service water system within the station is higher than the pressure of a circulating water tube 3 at the outlet of a regenerator, and hence seawater within the pipeline between the ball valve 22 and a ball recovering point 14 is substituted for fresh water.
Patent JP-S56117308-A (JP)
Title: Erasing circuit
Inventor: SANO MASAKI
IPC: G11B20/12
Filed: 1980-02-20
Abstract: PURPOSE:To improve recording efficiency by making it possible to reduce the gap length of a disk at its outer circumference, by varying the timing of erasing operation by making the delay time of the disk different between its outer and inner circumferences. CONSTITUTION:When write enable signal (a) is supplied and a timing selective signal is at the high level, monostable multivibrators 14 and 15 generate outputs (b) and (c) respectively. These are supplied to OR circuit 18, whose output (d) is sent to exclusive OR circuit 19, which generates output (e) turning on in time t3. This signal is supplied as an erasure signal to driving circuit 21 via buffer circuit 20. When the timing signal is at the low level, monostable multivibrators 16 and 17 generate outputs (f) and (g), OR circuit 18 generates output (h), and exclusive OR circuit generates output (i) turning on in time t6. Those two erasure signals are alternated at the outer and inner circumferences of the disk to reduce the gap length at the outer circumference, improving the recording efficiency.
Patent JP-S62179100-A (JP)
Inventor: NAKAMURA YOSHIO
IPC: G08G1/127
Filed: 1986-02-03
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-2000224867-A (JP)
Title: Inverter
Inventor: HARADA MAKOTO
IPC: H01L27/098
Filed: 1999-01-28
Abstract: PROBLEM TO BE SOLVED: To realize an inverter which has a high switching frequency and is excellent in its low-loss quality, by forming its conversion elements out of silicon-carbide junction-type FETs. SOLUTION: For example, six switching elements S1-S6 are formed out of silicon-carbide junction-type FET conversion elements. Also, feedback diodes D1-D6 are formed out of silicon-carbide Schottky diodes. Still, to form the silicon-carbide junction-type FET element by an ion-implantation method, firstly, an n--silicon-carbide layer is deposited on a p+-silicon-carbide substrate according to an epitaxial method. Then, by using a mask, an n+-region to be changed into the source/drain electrodes of the FET is formed by an ion-implantation method, and therein, a p+-region to be changed into its gate electrode is formed. Thereafter, the FET element is subjected to an annealing processing to activate it. As a result, an inverter which has a high switching frequency and is excellent in its low-loss quality can be realized.