baber/WOPTO huggingface dataset:
Patent JP-H11145603-A (JP)
Title: Thermosetting adhesive agent for temporary fitting electronic part, and method for fixing electronic part using the same
Inventor: KAWANO TAKAYUKI
IPC: H05K3/34
Filed: 1997-11-05
Abstract: PROBLEM TO BE SOLVED: To provide a thermosetting adhesive agent for temporary fitting an electronic part wherein, although solidifying at a temperature lower than solder's melting point, sinking of an electronic part or self-alignment which follows melting of a solder is not interfered, while a sufficient bonding strength is provided even when a large resin mold part is fixed to a substrate by soldering or with an adhesive agent. SOLUTION: Related to a thermosetting adhesive agent for temporary fitting an electronic part, a setting period at 170  deg.C is 80-200 seconds, the period at 150 deg.C is 400-800 seconds, and a horizontal expansion ratio is 20-50% while sinking rate is 60-90% when raised from a room temperature to 150±20 deg.C in 60±30 seconds, kept at 150±20 deg.C for 70±30 seconds, raised from 150±20 deg.C to 230±20 deg.C in 30±10 seconds, and cooled from 230±20 deg.C to 170±10 deg.C in 40±20 seconds.
Patent JP-H06147781-A (JP)
Title: Cooling equipment of air for gas turbine
Inventor: KANDA TETSUO
IPC: F28D5/02
Filed: 1992-11-05
Abstract: PURPOSE:To furnish equipment which cools down combustion air for a gas turbine by utilizing cold heat of LNG for fuel of the gas turbine. CONSTITUTION:Cooling equipment 10 of air for a gas turbine has a heat transfer means 14 of one stage at least. The heat transfer means is made up of a heat exchanger tube 22 and a heat transfer medium 24 which is provided below the tube and through which air can be passed freely, and the means is so designed that it can be stacked in a plurality of stages vertically. Moreover, a sprinkling nozzle 16 disposed above the uppermost stage of the heat transfer means and sprinkling an antifreeze over the heat exchanger tube located below, an air flow passage 12 accommodating the heat transfer means and the sprinkling nozzle and making air flow so that it passes through the heat transfer medium, and a circulating pump 34 for circulating the sprinkled antifreeze to the sprinkling nozzle again from the bottom part of the air flow passage, are provided.
Patent JP-H03180726-A (JP)
Title: Flame sensor
Inventor: HIROTOMI KAZUTAKA
IPC: G01J5/02
Filed: 1989-12-09
Abstract: PURPOSE:To drive an optical chopper mechanism only as necessary and to prolong the life by triggering the driving circuit for the chopper mechanism with the sensing signal of a high-sensitivity ultraviolet sensing means. CONSTITUTION:Ultraviolet rays emitted by a flame are converted photoelectrically by a photoelectric converter 9 and sensed by an ultraviolet sensing circuit 8 to trigger the motor driving circuit 7, and then a motor 6 rotates to start chopping operation. Consequently, a pyroelectric current is generated by a pyroelectric type infrared sensor 2 and outputted as variation in output voltage through a converting circuit in the sensor 2 and the variation is amplified by an amplifying circuit 3, and a level decision circuit 4 decides the level and when the value is larger than a constant value, an alarming circuit 5 issues an alarm. Thus, long life, high sensitivity, and high reliability are obtained.
Patent JP-H07245940-A (JP)
Title: Changeover-type electric-power supply device
Inventor: RICHIYAADO RARUFU GARUSHIA
IPC: H02M7/00
Filed: 1994-11-30
Abstract: PURPOSE: To provide a switching power supply in which power dissipation can be reduced in switching. CONSTITUTION: A voltage regulator comprises a resonance snubber circuit having an FET auxiliary switch Q2 and connected in parallel with an FET auxiliary switch Q1. A resonance voltage snubber drive circuit controls the gate voltage of the switches Q1, Q2. In order to drop the applying voltage of the switch Q1 down to zero, the switch Q2 is turned on at he transition to turn on. The drive circuit being driven by pulse width modulation PWM of voltage regulation turns the switch Q2 on at first to decrease the voltage being applied to the switch Q1 which is eventually turned on when the voltage drops below a threshold level. The switch Q2 is turned off after the switch Q1 is turned on. A latch circuit latches the complementary state of these two switches. The switch Q2 is disabled in the vicinity of zero voltage and power dissipation in the snubber circuit is suppressed.
Patent JP-H09161821-A (JP)
Title: Solid polymer electrolytic fuel cell
Inventor: SHINDO YOSHIHIKO
IPC: H01M8/02
Filed: 1995-12-08
Abstract: PROBLEM TO BE SOLVED: To suppress the temperature difference in the electrode opposed area of the separator of a cell so that the wet state can be held substantially uniformly, and prevent a local characteristic deterioration. SOLUTION: A plurality of cooling water passing grooves 12 arranged in parallel to each other are provided in the electrode opposed area of a separator, for example, a separator 8A arranged adjacent to a fuel electrode in the same direction as fuel gas passing grooves arranged on the reverse side, and the cooling water guided through a cooling water inlet 18A provided on the upper part of the electrode opposed area is branched and passed, and discharged through a cooling water outlet 19A provided in the lower part of the electrode opposed area, whereby a linear temperature gradient from the upper stream to the lower stream is provided, and water quantity is regulated to suppress the temperature difference.
Patent JP-H03180089-A (JP)
Title: Semiconductor light emitting device
Inventor: NOGUCHI HIDEAKI
IPC: H01S5/227
Filed: 1989-12-08
Abstract: PURPOSE:To suppress the increase of dark lines by a method wherein elements such as In are introduced as impurities into an AlxGa1-xAs layer of an active layer. CONSTITUTION:A semiconductor substrate 1 made of n<+>-type GaAs, a first cladding layer 2 made of n-type Alx1Ga1-x1As, an active layer 3 made of Alx2 Ga1-x2As, a second cladding layer 4 made of p-type Alx3Ga1-x3As, a cap layer 5 made of p-type Alx4Ga1-x4As and a buried layer 6 made of Alx5Ga1-x5As for current constriction are provided. Thus, by introducing one or more types of impurities selected among In, Sb, B and N into the semiconductor layers including at least the active layer made of AlxGa1-xAs, local stress fields are formed near the impurities. With this constitution, dislocations and crystal defects are fixed, so that the increase of dark lines of non-light emitting recombination centers caused by the movements of the dislocations and the crystal defects can be suppressed.
Patent JP-H11274131-A (JP)
Title: Wafer carrier cleaning apparatus
Inventor: YAMANAKA TAKEO
IPC: B08B7/04
Filed: 1998-11-11
Abstract: PROBLEM TO BE SOLVED: To reliably and efficiently brush the inner surface of the sidewall of a wafer carrier. SOLUTION: A rack 22a for supporting a wafer carrier 70 is provided within a cleaning bath 21. A rotary brush 24 is provided for brushing the inner surface of the sidewall of a wafer carrier 70 supported in the bath 21 by the support member 22a. The rack 22a rotates the carrier 70 around its vertical axis. The rotor brush 24 has a rotary shaft of a cantilever type horizontal along the sidewall of the carrier 70 and has a brush width, capable of brushing the inner surface of the sidewall of the carrier 70 along half the full length thereof. The brush 24 is driven by a cleaning robot 23 in two of a vertical direction and horizontal direction perpendicular to the rotary axis.  After the inner surfaces of the sidewall on both sides have been brushed along the half of the full length, the carrier 70 is rotated around its vertical axis by 180 degrees to have the remaining parts of the inner surfaces of the sidewalls on the both sides brushed. The entire inner surfaces of the sidewalls of the both sides can be brushed without moving the rotary brush 24 in its rotary axis direction.
Patent JP-H09157456-A (JP)
Title: Water-shielding sheet for construction work
Inventor: NAKAI TAKEMOTO
IPC: B29D7/01
Filed: 1995-12-08
Abstract: PROBLEM TO BE SOLVED: To provide a water-shielding sheet for construction work having excellent flexibility, workability and heat-sealability. SOLUTION: The objective sheet is made of a copolymer having a density of 0.86-0.88g/cm<3> , a melt index of 0.5-5 and an Mw/Mn ratio of 1.5-5 (Mw is weight-average molecular weight and Mn is number-average molecular weight), composed of ethylene and a 3-12C α-olefin and produced by using a metallocene catalyst. The sheet further contains 1-20 pts.wt. of an inorganic filler having an average particle diameter of 1-20μm.
Patent JP-H01161510-A (JP)
Title: Pressure controlling valve
Inventor: AKAIWA MICHIRO
IPC: G05D16/10
Filed: 1987-12-18
Abstract: PURPOSE:To obtain a pressure controlling valve which is easily worked for holes and has an excellent responsiveness and small hysteresis by forming the valve in such a way that no sliding surface is produced between a valve spool and a member for obtaining a reaction force. CONSTITUTION:When the feedback hydraulic pressure received by the front end section 22a of a plunger 22 becomes higher than the pushing force of the plunger 22, the front end section 22a is separated from the opening end section 46a of a valve small hole 46. Since the feedback hydraulic pressure directly acts on the plunger 22 as mentioned above, the responsiveness of this pressure controlling valve is high. Moreover, since the pressure is reduced by a slight stroke of the plunger 22, the responsiveness is further improved. In addition, since pressure reduction can be realized when the front end section 22a of the plunger 22 is separated from the opening end section 46a of the small hole 46, no sliding resistance is produced between the plunger 22 and a valve spool 40 and, therefore, the hysteresis at the time of pressure reduction becomes smaller. Furthermore, this valve can be worked easily, since the reaction force to the hydraulic pressure is received by the front end section 22a of the plunger 22.
Patent JP-H11139872-A (JP)
Title: Production of silicon carbide ceramics
Inventor: MATSUO HIROYUKI
IPC: C04B35/565
Filed: 1997-11-07
Abstract: PROBLEM TO BE SOLVED: To solve the problem that the aggregation of a polymer is caused and the densification of a sintered compact is blocked when a slurry is dried at a temp. above the polymn. temp. of a phenolic resin. SOLUTION: A slurry prepd. by adding baron or its compd. as a sintering aid and a carbonizable phenolic resin soluble in water or an org. solvent to silicon carbide powder and mixing them is dried and the resultant powder is compacted and fired in an inert gaseous atmosphere to produce silicon carbide ceramics. In this method, the phenolic resin is added by 0.5-5 pts.wt. (expressed in terms of formed carbon) based on 100 pts.wt. silicon carbide powder and the slurry is dried at a temp. below the polymn. start temp. of the phenolic resin to form granules. The granules are compacted and the resultant compact is heated at a temp. above the polymn. start temp. of the phenolic resin to polymerize the phenolic resin. The compact is then fired in the inert gaseous atmosphere.
Patent JP-H02165462-A (JP)
Title: Disk mounting device
Inventor: NAKAMURA SUKEYUKI
IPC: G11B17/028
Filed: 1988-12-19
Abstract: PURPOSE:To attain the smooth centering of a disk by arranging a centering piece which centers the disk and a guide piece by means of separating them on the upper part and the lower part of a turn table and coupling them through the turn table so as to integrally and vertically move them. CONSTITUTION:A centering member 15 is provided with a slope 16 for the centering of the disk 14, is guided by a spindle 12 and vertically slides. The guide piece 19 is coupled with plural hook parts 17 of the centering member 15, and integrally and vertically slides along the spindle 12. Since the centering member 15 and the guide piece 19 are arranged on the upper part and the lower part while pinching a turn table 13, a span which slidably supports the spindle 12 is prolonged, and it can smoothly slide with respect to the spindle 12. Thus, the smooth centering of the disk can be performed without the occurrence of a complicated phenomenon in sliding between the centering member 15 and the spindle 12.
Patent JP-H05131127-A (JP)
Title: Dissolving apparatus
Inventor: KOBAYASHI KAZUHIKO
IPC: B01F1/00
Filed: 1991-11-08
Abstract: PURPOSE:To efficiently dissolve chemicals in a solvent by refluxing a liquid by a pump to stir the same in the route of the jet orifice of a photographic processing agent dissolving apparatus, the interior of a dissolving tank, the discharge port of said tank and a fluid passage. CONSTITUTION:A reflux mechanism 6 for refluxing the liquid in a dissolving tank 2 is provided in a dissolving apparatus 1 and equipped with the first - third jet orifices 61-63 formed to the side wall 23 of the dissolving tank 2 in a vertical direction, the fourth jet orifice 64 provided to the bottom part 22 of the tank 2 and the discharge port 65 on the side opposed to the jet orifices. A liquid passage 66 is allowed to communicate with the discharge port 65 and branched on the downstream side thereof to be connected to the jet orifices 61-64 and a pump 67 and solenoid valves 71-74 are provided on the way of the passage 66. The liquid is refluxed to dissolve chemicals in a solvent and floating powdery chemicals are also stirred by shearing force.
Patent JP-H04191771-A (JP)
Title: Toner supply mechanism in electrophotographic device
Inventor: YOKOTA YUJI
IPC: G03G15/08
Filed: 1990-11-27
Abstract: PURPOSE:To prevent the scattering of an unrecovered toner in a device by rotating a desired roller part according to the used amount of the toner corresponding to the width of a recording paper, and supplying the toner in a toner supplying part to the toner mixing and stirring part of a developing device only in a proper amount. CONSTITUTION:When a narrow recording paper is used, pat pins 26 are pulled out from roll parts 22 on both ends of a toner supply roll 23 by rotating parts 27 to be patted by the fingers to loosen the spiral fitting with screw holes 25. When it is detected by a toner density sensor that the toner density of a developer does not reach a determined value, a drive signal is outputted, and a driving shaft 28 is rotated once in the arrowed direction. By this rotation, each patting piece 29 pats the pins 26 of all the roll parts excluding the roll parts 22 on both the ends of the roller 23 to rotate each roll part 22 in the arrowed direction. Thus, a toner T in a toner supply part 11 is supplied to the mixing and stirring part of a developing equipment through a toner supply port 12 only in a determined amount. Thus, the scattering of the unrecovered toner in the device can be prevented.
Patent JP-H05136010-A (JP)
Title: Electrode forming equipment of chip parts
Inventor: NAKAGAWA TADAHIRO
IPC: H01G13/00
Filed: 1991-11-08
Abstract: PURPOSE:To provide an electrode forming equipment for producing chip parts having stabilized quality in which the electrode width of chip parts is uniform on the side face and dust or dirt is difficult to be sticked to electrode paste. CONSTITUTION:A dip apparatus 6 comprises a chuck section which rises up and falls down while keeping a holding plate so that chip parts can project downward, and a dip path coated with electrode past in thin film at the lower part of the chuck section. Conveyers 7, 9 carry horizontally the holding plate which completed coating of electrode paste to a drying furnace, while keeping the chip parts in downward direction. The drying furnace takes in the chip parts in the downward holding condition, and dries the electrode paste, while the chip parts rotate in a 360-degree arc.
Patent JP-H05159724-A (JP)
Title: Projection optics, and projection type picture display device
Inventor: TANIDE HIDEO
IPC: H01J31/10
Filed: 1991-12-05
Abstract: PURPOSE:To obtain a good contrast, by providing light absorption members in cooling-liquid filling sections other than a space created through straight-line connections between an effective picture display region of a projection tube and an effective light transmission region of the incident surface of a projection first lens. CONSTITUTION:An unnecessary light 31 emitted from a point A is to pass through a light absorption member 6. Since the index of refraction of the member 6 is almost the same as that of a cooling liquid 4, the light is absorbed by the member 6. Or alternatively, the light passes through the member 6. The unnecessary light 31 passed there-through is reflected by a side wall 3a and a regular vertical wall 3b of a coupler 3 to pass again through the member 6. Then, the light 31 is totally reflected by an aerial side interface 2b of a projection first lens 2 to return to a phosphor screen 5. An unnecessary light 32 from a point B also is similarly passed twice through the member 6 to return to the phosphor screen 5. Assume now that the member 6 has a light absorption characteristic which is 70% with respect to a light of a light-emission wavelength region in the projection tube 1. Then, the intensity of the unnecessary light returning to the phosphor screen 5 is weakened to an intensity of 1.35%. This indicates that the contrast can be improved to about 1/ 0 as compared with that attainable with no use of the member 6, thus obtaining a good contrast.
Patent JP-H01162152-A (JP)
Title: Measuring apparatus for degree of oil degradation
Inventor: KATAYAMA AKIRA
IPC: G01N33/30
Filed: 1987-12-19
Abstract: PURPOSE:To measure the degree of degrading of oil accurately even when temperature of oil changes, by outputting a correction signal to a measuring sensor such as pollution degree measuring sensor or water content measuring sensor according to the temperature of the oil detected. CONSTITUTION:When an oil temperature measuring signal (T) from an oil temperature measuring sensor 25 is inputted into a pollution degree correction function calculating section 29 and a water content correction function calculating section 30 separately, the correction function calculating sections 29 and 30 generate correction signals respectively according to a pollution degree correction function f(T) and a water content correction function F(T). A pollution degree measuring sensor 27 and a water content measuring sensor 28 are connected to a pollution degree measuring section 31 and a water content measuring section 32 respectively and outputs of the pollution degree correction function calculating section 29 and the pollution degree measuring section 31 are inputted into a multiplying section 33 to multiply and outputs of the water content correction function calculating section 30 and the water content measuring section 32 into a multiplying section 34 to multiply. The resulting multiplied values are inputted into a decision section 35 to be compared with judging conditions previously inputted from a judging conditions setting section 36 and the results of the judgement are shown on a display section 37.
Patent JP-H07174907-A (JP)
Title: Production of glass for image sensor
Inventor: HAYASHI SHINICHI
IPC: H04N1/028
Filed: 1993-12-21
Abstract: PURPOSE:To improve the quality of glass for an image sensor having a reflecting surface as well as to reduce the number of producing processes especially related to a process for forming the reflecting surface and to simplify the production of the glass. CONSTITUTION:A light reflecting surface A is formed on the principal surface of large-sized glass (blank) and this glass is cut to a proper size (t) to produce the objective reflecting glass for an image sensor having linearly arranged photoelectric conversion elements, a linear light source placed parallel to one side of an array o image forming elements and the reflecting glass for reflecting light from the linear light source to a light source in an image reading line from the opposite side.
Patent JP-H10160408-A (JP)
Title: Stage control method, pattern position measuring instrument, and pattern plotting device
Inventor: KODAMA KENICHI
IPC: G01B9/02
Filed: 1996-12-02
Abstract: PROBLEM TO BE SOLVED: To provide a stage control method, by which the position of a pattern can be measured with high accuracy even when a periodic error occurs in the measured values of laser interferometers. SOLUTION: In the stage control method, in which a stage 3 which is movable in both x- and y-directions is moved based on the detected values of laser interferometers 5x and 5y which detect the moving amount of the stage 3, the moving amount Λ of the stage 3 is set to Λ=λ/2m, where λ and (m) respectively represent the wavelength of the measuring laser beam used by the interferometers 5x and 5y and the number of round trips made by the stage 3 between moving mirrors 6x and 6y and the interferometers 5x and 5y.
Patent JP-H06172967-A (JP)
Title: Boron nitride-containing film-coated base and its production
Inventor: NISHIYAMA SATORU
IPC: C23C14/24
Filed: 1992-12-01
Abstract: PURPOSE:To obtain a boron nitride-contg. film-coated base excellent in adhesion by forming a mixed layer consisting of a film contg. a group VIa element and the atom constituting a base between the film and the base. CONSTITUTION:A film 2 contg a group VIa element and a film 3 contg boron nitride are successively formed on a base 1 to constitute the boron nitride-contg. film-coated base, and a mixed layer 4 contg. the constituent elements is formed between the base 1 and the film 2. The coated base is obtained by forming the film 2 by vacuum deposition or sputtering and ion irradiation. Since the mixed layer 4 is formed, a film enhanced in chemical activity and highly adhesive to the various bases is obtained. Further, the difference between the lattice constant and thermal expansion coefficient of a BN film to be formed on the film 2 is reduced, the induced internal stress is relieved in the BN film, and the adhesion of the BN film is maintained for a long period.
Patent JP-2001138543-A (JP)
Title: Ink jet recording apparatus
Inventor: SHIMIZU KOJI
IPC: B41J2/18
Filed: 1999-11-12
Abstract: PROBLEM TO BE SOLVED: To provide an ink jet recording apparatus using a long-term usable recording head dispensing with ink supply operation. SOLUTION: An ink jet recording apparatus has a plurality of recording heads 310-340, the ink tanks corresponding to the recording heads 310-340, a washing liquid tank common to the recording heads 310-340, the ink tubes 372-378 for supplying ink corresponding to the recording heads 310-340, washing liquid tubes 371-377 for supplying a washing liquid, a first tube changeover means 360 for changing over the ink tubes 372-378 and the washing liquid tubes 371-377 corresponding to a predetermined operation mode, a plurality of caps 410-440 covering the jet nozzles of the recording heads 310-340, suction tubes - 477 for evacuating the caps 410-440, opening tubes - 478 for opening the the caps 410-440 to the atmosphere,  a second changeover means 460 changing over the suction tubes - 477 and opening tubes - 478 corresponding to a predetermined mode and a suction pump for evacuating the suction tubes - 477.
Patent JP-2001141593-A (JP)
Title: Balance adjusting method of engine rotor
Inventor: GOSHIMA YOSHIHISA
IPC: G01M1/02
Filed: 1999-11-12
Abstract: PROBLEM TO BE SOLVED: To provide a balance adjusting method of an engine rotor capable of executing balance adjustment easily with excellent workability. SOLUTION: After executing balance adjustment with a single disc, turbine blades having uniform weights within a prescribed weight tolerance are mounted in order.