baber/WOPTO huggingface dataset:
Patent JP-H11145366-A (JP)
Title: Lead frame for semiconductor device for manufacture of semiconductor device
Inventor: MAEHARA KAZUAKI
IPC: H05K3/34
Filed: 1997-11-06
Abstract: PROBLEM TO BE SOLVED: To improve mounting strength by removing the failure formation of a solder fillet or failure soldering at the tip of the outer lead at the time of mounting by soldering of a semiconductor device. SOLUTION: This lead frame is constituted, such that a tie bar part 2 connects an outer lead part 3 with an inner lead part 1. In this case, the cutting place 5 where the outer lead 3 is cut off the above lead frame body is made the place of a connection with the side face part 7 or the tie bar part 2 of this outer lead part 3, and a solder-plated part is retained over the entire surface of the tip 6 of the outer lead 3 so as to eliminate failures in soldering.
Patent JP-S63156016-A (JP)
Title: Production of sol of crystalline tin oxide-antimony oxide
Inventor: NISHIKURA HIROSHI
IPC: C01G30/00
Filed: 1986-12-19
Abstract: PURPOSE:To obtain a sol of crystalline tin oxide-antimony oxide having superior characteristics and to prevent discharge of Sb compd. into waste water in order to maintain good environmental condition, by adding Sb2O3 and ammonia to a gel obtd. by the reaction of a Sn compd. with an alkali bicarbonate, and treating the mixture hydrothermally. CONSTITUTION:After forming a gel by allowing a Sn compd. to react with an alkali bicarbonate or ammonium bicarbonate, Sb2O3 and ammonia are added to the gel, and the mixture is treated hydrothermally. Suitable Sn compds. are stannic chloride, stannic sulfate, etc. The amt. of the Sb2O3 to be added is pref. the amt. corresponding to <=0.3 molar ratio (Sb/Sn) contained in the gel.
Patent JP-2000132855-A (JP)
Title: Optical information recording and reproducing device
Inventor: HAYASHI HIDEKI
IPC: G11B7/095
Filed: 1998-10-27
Abstract: PROBLEM TO BE SOLVED: To reduce the degradation in the quality of recording and reproducing signals caused by the tilt between optical beams and an optical information recording medium in an optical information recording and reproducing device. SOLUTION: The device conducts a recording and a reproducing of an optical information recording medium having a transparent protective layer. The device is provided with a tilt detecting device 15, an off-track adding device 12, a determination means which determines an optimum direction to deviate the center of an optical spot from the center of the information track of the medium against the tilt between optical beams and the medium, a means, which makes the amount of deviation into a fixed value, and a means, in which the medium is divided into a few areas and a tilt detecting function is activated every time an area varies during a recording and a reproducing.  By conducting a scanning while the center of the optical spot on the medium is deviated from the center of the information track of the medium, the quality degradation of the recording and reproducing signals caused by the tilt of the recording surface of the medium is reduced.
Patent JP-H08168247-A (JP)
Title: Rectifier circuit
Inventor: KANEGAE TAKESHI
IPC: H02M7/06
Filed: 1994-12-08
Abstract: PURPOSE: To provide a rectifier circuit which can suppress high-frequency noises due to resonance. CONSTITUTION: One set of facing junction of a diode bridge circuit 2 is connected to an input AC voltage source 1 and one of the other set of facing junction of the circuit 2 is connected to one end of a resistor 7, the cathode of a diode 8, and one end of a choke coil 3. The other of the other set of facing junction of the circuit 2 is connected to a capacitor 4, a load 5, one end of a capacitor 9, and a ground terminal. The other end of the resistor 7 and an anode of the diode 8 are commonly connected to the other end of the capacitor 9. In addition, the common connecting point of the other end of the coil and other end of the capacitor 4 is connected to one end of the load 5.
Patent JP-H07155618-A (JP)
Title: Supported metal catalyst and production thereof
Inventor: YAMAGUCHI MOTOO
IPC: B01J35/00
Filed: 1993-12-06
Abstract: PURPOSE:To enhance catalytic capacity by more increasing adsorbing sites, that is, active points by allowing metal particles to collide with a carbon carrier in a form of ionic atoms or in a form of atomic particles constituted of some atoms to absorb and support them on the carrier. CONSTITUTION:Platinum plasma is generated by an ion injection device to be taken out in the form of atomic platinum ions 1 and, for example, the platinum ions 1 are injected into the carbon support atoms 2 of the surface layer part of acetylene black used as a carbon carrier along ion streams 3 by acceleration voltage 100 kV. Thereafter, the atomic platinum ions 1 collide with the carbon carrier to be adsorbed thereon and a part of the atoms 2 of the carbon carrier surface layer is liberated and the liberated carbon atoms 2-1 scatter in a liberated carbon scattering direction 4. As a result, the number of active points generating catalytic activity is maximized and the number of adsorbing sites can be increased.
Patent JP-H04177262-A (JP)
Title: Electrifying member
Inventor: KAWADA HIDEAKI
IPC: G03G9/113
Filed: 1990-11-09
Abstract: PURPOSE:To improve the shock resistance and environmental resistance stability of resin having an esterifiable carboxyl group or a hydroxyl group by bridging the resin with a specified grycol uril derivative. CONSTITUTION:Resin having an esterifiable carboxyl group or hydroxyl group is bridged with a glycol uril derivative expressed by the formula 1. In this formula, R<1> stands for a hydrogen atom or an alkyl group having carbon atoms between 1 and 6, R<2> and R<3> for a hydrogen atom, an alkyl group or phenyl group having carbon atoms between 1 and 6, (n) for an integer between 1 and 4 and (m) for 0, 1 or 2. According to this construction, the shock resistance and environmental resistance stability of the resin can be improved, while maintaining the hardness thereof.
Patent JP-H02151077-A (JP)
Title: Manufacture of impatt diode
Inventor: IWASE KAZUO
IPC: H01L23/40
Filed: 1988-12-01
Abstract: PURPOSE:To enable the assembling of an IMPATT diode by using dielectrics whose high frequency loss is little by a method wherein, after a diode chip is subjected to thermocompression bonding to a heat sink, a quartz ring whose end surface is metallized and brazed. CONSTITUTION:A diode chip is subjected to thermocompression bonding to a protrusion at the center of heat sink 101 composed of oxygen-free copper; by sputtering method, a Pt film and a gold film are stuck in order on both ends of a quartz ring 107, which is metallized; the matallized layer 107a of the one end surface is brazed by using brazing material like Au-Si alloy. A gold tape 105 is subjected to thermocompression bonding to the diode chip 104 and a metallized layer 107b. Finally, a cap 106 composed of Fe-Ni-Co alloy is sealed by using brazing material like Au-Sn alloy or the like. When the quartz ring 107 is brazed at a low temperature in this manner, the quartz ring 107 is not cracked by thermal distortion, so that assembling is enabled by using the quartz ring 107.
Patent JP-H10130185-A (JP)
Title: Polyfunctional vinyl ether, polymerizable composition, hardened material and production of polyfunctional vinyl ether
Inventor: UCHIDA MAKOTO
IPC: C07C41/16
Filed: 1996-11-01
Abstract: PROBLEM TO BE SOLVED: To obtain the subject compound being slightly effected with oxygen, capable of realizing low irritation to skin and low odor and useful in the fields of ink, coating materials and adhesives, etc., by introducing a vinyl ether group into (di)pentaserythritol. SOLUTION: This compound is expressed by formula I [(n) is 1 or 2; X is H or a group of formula II  (m) is 0-2} in which 50-95% of (2n+2) pieces of X are the groups of the formula II] and is obtained by reacting a compound of formula III  (1) is same as (n)} with a compound of formula IV  Y is a halogen; (K) is same as (m)} in the presence of an inorganic fine powder, e.g. sodium sulfate anhydride, calcium carbonate anhydride or zeolite and basic compound such as sodium hydroxide, triethylamine or alkali metal alcoholate.
Patent JP-H10135785-A (JP)
Title: Tuner for satellite broadcast reception
Inventor: ISHIGURO NAOYUKI
IPC: H03J3/02
Filed: 1996-10-31
Abstract: PROBLEM TO BE SOLVED: To provide a satellite broadcast reception tuner with a simple configuration at a lower cost. SOLUTION: An RF tuning amplifier section is provided with a trap filter consisting of a coil being a strip line 21 formed on a board 20 and a capacitor C3 surface-mounted to one terminal 21a of the coil. In the satellite broadcast reception tuner, the one terminal 21a of the coil is extended in a straight line by a prescribed length on the board and a land 26 on which the capacitor C3 is mounted in parallel with the one terminal of the coil is formed and the satellite broadcast reception tuner is configured such that the trap frequency is properly adjusted depending on the mount position of the capacitor C3 with respect to the one terminal of the coil and the land 26.
Patent JP-H04176214-A (JP)
Title: Charge injection compensation circuit for analog switch
Inventor: KOMATANI SHINTARO
IPC: G06F3/05
Filed: 1990-11-08
Abstract: PURPOSE:To correct the charge injection by providing a differentiating circuit implementing charging/discharging attended with switching and making a discharge time constant of the said differentiating circuit coincident with a time constant changing with the charge injection caused when an analog switch is turned off. CONSTITUTION:With an analog switch 7 turned on, a voltage V1 at a connecting pint 32 between a capacitor 17 and a variable resistor 18 of a differentiating circuit 19 becomes a differentiating waveform with a time constant of tau1approx.=CD.R3 and is close to 0V as time elapses. A change in the voltage of the circuit 19 due to the charge induction resulting from the closed analog switch 7 is small when an on-time Ton is long and large when it is short and decreases in a way of a differentiating waveform with a time constant. Thus, the charge induction quantity depending on the long/short on-time Ton is corrected by making the said time constant equal to the discharging time constant tau1 of the differentiating circuit 19, resulting that a hold voltage error is reduced when the holding or AD conversion time is not constant but at random.
Patent JP-H02153243-A (JP)
Title: Air-fuel ratio control device for internal combustion engine
Inventor: TAKIMOTO TOSHIYUKI
IPC: F02D41/14
Filed: 1988-12-05
Abstract: PURPOSE:To prevent that the air-fuel ratio exceeds the lean limit point and prevent an accidental fire and the degradation of the combustion, etc. by controlling the air-fuel ratio to the rich side during the updating of the learning value even if the lean limit point is changed at the re-starting time after the engine stop. CONSTITUTION:A torque fluctuating quantity computing means MA for computing the torque fluctuating quantity DELTATRQ of an internal combustion engine is provided, and while a feedback execution condition judging means MB for judging that the engine satisfied the torque fluctuating quantity feedback execution condition or not is provided. When the torque fluctuating quantity feedback execution condition is satisfied, the learning value by area Kij provided in each load area of the engine is updated by a learning means MC so that the torque fluctuating quantity DELTATRQ coincidents with the predetermined value. The air-fuel ratio of the engine is adjusted by an air-fuel ratio adjusting means MD in response to the learning value by area Kij, and when the engine firstly satisfied the torque fluctuating quantity feedback execution condition, the air-fuel ratio is compensated to the rich side.
Patent JP-H07159593-A (JP)
Title: Zinc implanter
Inventor: KONDO MASAYOSHI
IPC: G21D3/08
Filed: 1993-12-07
Abstract: PURPOSE:To accelerate the deposition of metal ions to the surface of fuel and reduce the reactor water radioactivity when the fuel such as the Zr liner fuel is loaded by invariably generating a fixed quantity of zinc ions, and implanting the zinc ions. CONSTITUTION:This zinc implanter is provided with zinc oxide grains 2 in a metal cylinder 1 and a heater 3 heating the flowing water in the cylinder 1 around the cylinder 1. Pure water is injected into the cylinder 1 from a pure water tank 5 storing the pure water via an injecting pump 6 adjusted to be a fixed quantity of water and pressure and having a pressure structure. The grains 2 dissolve zinc ions into the pure water flowing in the cylinder 1 in response to the solubility of zinc oxide according to the temperature of the pure water. When the surface areas of the grains 2 are changed, the concentration of the zinc ions flowing into a reactor can be changed. When the pure water temperature is raised and the surface areas of the grains 2 are increased, the concentration of the zinc ions dissolved in the flowing water is increased, thus the deposition of the metal ions to the surface of the Zr fuel is accelerated.
Patent JP-2001131857-A (JP)
Title: Bend-adjusting device of calendaring roll, and the like
Inventor: WATAZAKI HARUMITSU
IPC: D06C15/02
Filed: 1999-10-28
Abstract: PROBLEM TO BE SOLVED: To provide a bend-adjusting device for a calendaring roll, easily adjusting the pressure for a cloth processed by nipping between the upper and lower calendaring rolls in a calendaring device for imparting a gloss to a dyed cloth by passing it between both the rolls for compressing under a high pressure. SOLUTION: This bend-adjusting device is provided by supporting as pivoting the shaft 6 of a lower calendar roll 1 with fixed bearings 2, 2 mounted at a beam 4, connecting the bend-adjusting device 3, 3 at the shaft end and further supporting the beam 4 with height-adjusting devices 5, 5.
Patent JP-H11116234-A (JP)
Title: Hydrous laminar silicate and granular nonionic detergent composition
Inventor: NORITAKE FUMITOMO
IPC: C11D3/08
Filed: 1997-10-21
Abstract: PROBLEM TO BE SOLVED: To obtain a hydrous laminar silicate having high hardness component capturing ability, high oil absorbing ability, favorable dissolution characteristics and a favorable particle diameter and to obtain a granular nonionic detergent compsn. contg. the silicate. SOLUTION: The hydrous laminar silicate has a compsn. represented by the formula M2 O.xSiO2 .yM'On/2 .zH2 O (where M is an alkali metal, M' is an n-valent element, 2<=x<=9, 0<=y<=0.3 and 1<=z<=20), may contain fluorine ions in a molar ratio F/SiO2 of 0-0.4 and has <=0.35 sec spin-lattice relaxation time measured by<23> Na-solid nuclear magnetic resonance spectroscopy and <=15 μm average particle diameter. The granular nonionic detergent compsn. contains 5-40 wt.% nonionic surfactant and 1-70 wt.% of the hydrous laminar silicate having >=100 ml/100 g oil absorption.
Patent JP-H02152559-A (JP)
Title: Pulverizing and coating device
Inventor: SAKASHITA SETSU
IPC: B02C19/06
Filed: 1988-12-02
Abstract: PURPOSE:To improve the pulverizing and coating efficiency of the pulverizing and coating device for which a jet mill having an internal classifying mechanism of a flat vortex type is used by specifying the ratio of the diameter of a discharge pipe/the diameter of a classifying zone to <=0.4. CONSTITUTION:The ratio of the diameter De of the discharge pipe/the diameter Di of the classifying zone of the pulverizing and coating device for which the jet mill having the internal classifying mechanism of the flat vortex type, i.e., the opposite type jet mill, is used is specified to <=0.4. More preferably, the discharge port 8 of the classifying chamber has the shape consisting of a curved surface or the combination of continuous lines in the inlet and the outlet part is made into the shape having an enlarged part. In addition, a pulverized product passage 6 entering the classifying zone B from a pulverizing zone A is so constituted that the gas and pulverized product flow into the passage from nearly the entire circumference. Further, the passage is so constituted that the gas and the pulverized product are admitted from the classifying circle C of the classifying zone B to the outer side. The pulverized product of a submicron class is easily obtd. by this constitution.
Patent JP-H09129770-A (JP)
Title: Integrated circuit device
Inventor: FUJINAMI TOMOYA
IPC: H05K3/30
Filed: 1995-10-31
Abstract: PROBLEM TO BE SOLVED: To mount a hybrid integrated circuit device without a problem even if a warp occurs owing to the variance of the thickness of solder resists printed on a mounting face and a difference in the coefficients of thermal expansion on chip coat resin at the time of mounting the device. SOLUTION: A flatness securing counter sunk 8 whose depth is 50-200μm is provided at the back from which an electrode part in a peripheral part is removed at the back being the mounting face of the hybrid integrated circuit device. Thus, the solder resists printed on the back are eliminated and the electrode part of the hybrid integrated circuit device can securely be brought into contact with a mother board. Thus, a structure where a projecting part is scraped off downward is obtained by providing a counter sunk 8 even if the warp of the projecting part facing downward occurs owing to the difference in the coefficients of thermal expansions on chip coat resins. Then, the electrode part is prevented from surfacing the mother board.
Patent JP-H08159634-A (JP)
Title: Cooling device
Inventor: NISHINO MASATAKE
IPC: A61F7/00
Filed: 1994-12-09
Abstract: PURPOSE: To provide a cooling device in which a fast and positive temperature control can be carried out under an easy operation and it has a superior safety in operation. CONSTITUTION: A bomb 6 filled with a liquefied carbonated gas is provided with an injection valve 7 having an injection port 10 therein. The injection port 10 is provided with an injection mixing cylinder 8 having an air intake opening formed at its circumferential wall and further having its longitudinal extremity end opened so as to constitute a cooling device 5.
Patent JP-H08164481-A (JP)
Title: Welding method of high cr ferritic heat resistant steel
Inventor: MORIMOTO YUTAKA
IPC: B23K31/00
Filed: 1994-12-09
Abstract: PURPOSE: To prevent the low temperature crack during the welding by preheating the groove surface before the welding and keeping the preheated condition, and heating the weld zone under the prescribed condition before the weld zone is cooled, and keeping the heated condition in a method where the ferritic heat resistant steel is arc welded to obtain the weld metal with the Cr equivalent calculated by the prescribed formula being in the prescribed range. CONSTITUTION: The ferritic heat resistant steel is arc welded to provide the weld metal whose Cr equivalent obtained by the formula is 4-13. The groove surface is preheated at 150-300 deg.C before the welding, and the temperature between each welding pass is kept at 150-300 deg.C. After the welding is completed, and before the weld zone is cooled below 300 deg.C, the weld zone is heated at 150-300 deg.C and this condition is kept for >=10 minutes and <=2 hours per 25mm of the base metal thickness. The reliability of the weld zone can be greatly improved in applying the high Cr ferritic heat resistant steel of high strength to the energy plant of high temperature and high efficiency. Each term in the formula indicates the weight % of each element of the weld metal.
Patent JP-H01150644-A (JP)
Title: Carrying method for record/copy paper through moving field
Inventor: TAKAMATSU KATSUO
IPC: B65H5/00
Filed: 1987-12-04
Abstract: PURPOSE:To reduce the size and to carry a sheet with no noise nor vibration, in a copy machine and the like, by applying moving field of electromagnets arranged in sheet carrying direction onto a record/copy sheet and the like provided with a conductive section. CONSTITUTION:A continuous record/copy paper 1 to be carried along a predetermined carry path is provided with a conductive section 2 along the edge thereof. Many electromagnets 3a, 3b, 3c...3n are arranged in parallel along the paper carry path 1 while facing with the conductive section 2. These electromagnets are connected with an exciter and an excitation controller and excited sequentially from one end toward the other end, and sequential excitation is repeated. When excitation is proceeded from right toward left, for example, moving field is produced to apply thrust onto the paper 1 so as to feed the paper 1 from right to left. Feeding speed is regulated through control of moving speed. The paper 1 is stopped at a required position and necessary printing or copy is performed thereat.
Patent JP-H02152182-A (JP)
Title: Manufacture of central electrode for spark plug
Inventor: OSHIMA TAKAFUMI
IPC: B21K21/08
Filed: 1988-12-05
Abstract: PURPOSE:To enable even an outer cylindrical member which is hard to be deformed, to be manufactured to the extent to a thin wire diameter by fabricating a clad member composed of two materials each of which is of excellent heat conductivity, and of high temperature and corrosion resistance, by means of hot hydrostatic pressure extrusion, depressing work, and furthermore of swaging work for a tip end. CONSTITUTION:A clad member 1 is fabricated by means of hot hydrostatic pressure extrusion while being heated up to 700 to 800 deg.C wherein the member is composed of inconel 300 as an outer cylindrical member 2, which is excellent in heat and corrosion resistance, and of copper as an inner section 3 which is of good heat conductivity. In addition, the member is squeezed into a specified outer diameter through the dies 10 of a swaging machine while the diameter of a raw material is concurrently left as it is as a brim section 12 at its rear end. In the second place, its tip end is squeezed into an acute angle 14 while the dies is replaced with another one 13 wherein each outer cylinder member is pressed with pressure so as to be joined so that it is shaped as to be finished with its tip end cut off. Even a nickel alloy which is difficult to be worked, can thereby be formed into a thin diameter by means of one time extrusion, no copper at an unformed section is moved in the axial direction because interfacial junction is solid, its tip end section can thereby be structurally enveloped with a nickel alloy with ease.
Patent JP-H11213689-A (JP)
Title: Semiconductor storage device
Inventor: INABA TSUNEO
IPC: G11C11/401
Filed: 1998-10-28
Abstract: PROBLEM TO BE SOLVED: To improve recovery efficiency for failure products without increasing the number of spare memory cells. SOLUTION: This semiconductor storage device has a plurality of memory cells MC11, MC12-MC41, MC42, a plurality of bit line pairs BL1, /BL1 to BL4, /BL4, word lines WL1, WL2 connected to the plurality of memory cells, data line pairs DQ0, /DQ0 to DQ3, /DQ3, a plurality of transfer gates Q11, Q12-Q41, Q42 for connecting the plurality of bit line pairs to any of the plurality of the data line pairs, and column selection lines SCL11, SCL12 for controlling continuity of the plurality of transfer gates. The column selection lines are selected and driven simultaneously in response to one column address input.