baber/WOPTO huggingface dataset:
Patent JP-S59150683-A (JP)
Title: Production of steel plate frame
Inventor: ICHIJIYOU KOUICHI
IPC: B23K26/14
Filed: 1983-02-17
Abstract: PURPOSE:To improve strength in a weld zone by making >=2 times higher the flow rate or pressure of the shielding gas to be injected in the stage of subjecting a steel plate and a reinforcing frame to laser welding. CONSTITUTION:A steel plate 1 and a reinforcing frame 2 are superposed and while a shielding gas 15 of which the flow rate or pressure is made >=2 times higher than in an ordinary case is injected thereto, laser light 12 is irradiated to a weld zone 17. The molten part of the weld zone 17 is depressed to form the weld zone 17 having the shape bulging in the intermediate part. The deposited width C in the weld zone 17 is thus increased and the strength in the weld zone 17 is improved.
Patent JP-S60167150-A (JP)
Title: Reel shaft driving device of tape recorder
Inventor: NIIMURA TATSUHIKO
IPC: G11B15/44
Filed: 1984-02-09
Abstract: PURPOSE:To switch quickly the state from the reproducing operation state to the rewinding operation state by equalizing rotation directions of a motor in the reproducing operation and the rewinding operation. CONSTITUTION:In this device, rotation directions of the motor in the reproducing operation and the rewinding operation are equal to each other. In the reproducing operation state, a magnetic tape is driven in a certain speed by pressing of a pinch roller 10 to a capstan shaft 12. When power supply to an electromagnet 34 is cut off for the purpose of switching the state from the reproducing operation state to the rewinding operation state, the lock holding force of a lock pin 28 is insufficient, and a control plate 22 is displaced in the direction of an arrow B by a spring 4, and a displacing plate 35 is displaced to the non- operation position, and a switching member 42 is turned and displaced clockwise, and a transmission roll 37 is separated from a driving roll 13 and a take- up roll 18, and the driving force to a take-up reel shaft 14 is cut off. A turning plate 1 is displaced from the reproducing operation position to the stop position by the spring 4, and the pinch roller 10 is separated from the capstan shaft 12. The rotation direction of the motor is switched in case of quick traversing.
Patent JP-S61182867-A (JP)
Title: Suction casting method
Inventor: SHIMIZU KUNIO
IPC: B22D18/06
Filed: 1985-02-08
Abstract: PURPOSE:To reduce casting cycle time and to improve productivity by solidifying forcibly a molten metal in at least part in a stalk to close the stalk right after sucking of the molten metal and filling the same into a cavity. CONSTITUTION:The inside of the chamber 6 is evacuated by a vacuum pump connected to a pressure reducing port 5 of the chamber 6 to suck up and fill the molten metal 10 in a ladle 9 into the cavity 11. Jigs 12 for crushing are advanced from both right and left sides of the stalk 8 by a cylinder to crush partly the stalk 8 so that part of the molten metal 10 in the stalk 8 is forcibly and quickly cooled and solidified to form a plug 13. The stalk 8 is closed by such plug. The outflow of the unsolidified metal in the cavity 11 is thus prevented by the plug 13 and therefore a casting mold 3 is moved to a prescribed position and the solidification of the molten metal in the cavity 11 is executed.
Patent JP-S56121379-A (JP)
Title: Power-saving method of motor
Inventor: HANDA KENJIROU
IPC: H02P1/16
Filed: 1980-02-27
Abstract: PURPOSE:To save an electric power consumed in a motor by a method wherein both of main driving motor and auxiliary motor are driven at the start, and a power source of the auxiliary motor is turned OFF at the stationary operation. CONSTITUTION:Belts 4, 5 are stretched from pulleys 1', 2' of the main driving  motor 1 and the auxiliary motor to a pulley 3' of a driven rotating body 3. At the  start, an interruption switch 6 is turned ON first of all and then a main switch 7 is  turned ON. Subsequently, when a constant-speed rotation starts and a rotational  inertia also becomes satisfactory, the interruption switch 6 is turned OFF and the power source of the auxiliary motor 2 is turned OFF. Whereby the consumed electric power of the motor can be saved.
Patent JP-H02207159-A (JP)
Title: Catalyst deterioration judging device for internal combustion engine
Inventor: IZUMITANI NAOHIDE
IPC: F01N3/20
Filed: 1989-02-03
Abstract: PURPOSE:To judge deterioration with high precision by judging that a ternary catalyst is deteriorated when the time until the output of an air-fuel ratio sensor on the downstream side of the ternary catalyst is reversed from rich to lean after the air-fuel ratio of an engine is reversed from rich to lean is the preset time or below. CONSTITUTION:The air-fuel ratio of an engine is adjusted by a means D in response to outputs of air-fuel ratio sensors B and C on the upstream side and the downstream side of a ternary catalyst A installed on the exhaust passage of an internal combustion engine. When the engine is in the preset operation state, the air-fuel ratio of the engine is forcefully made rich by a means E, then it is reversed to lean. A means F judges that the output of the air-fuel sensor C on the downstream side is reversed from rich to lean. The time until the output of the air-fuel ratio sensor C on the downstream side is reversed from rich to lean after the air-fuel ratio is forcefully reversed is measured by a means G. When the measured time is the preset time or below, a means H judges that the ternary catalyst A is deteriorated.
Patent JP-S57138188-A (JP)
Title: Manufacture of solid state light-emitting device
Inventor: NIINA TATSUHIKO
IPC: H01L27/15
Filed: 1981-02-19
Abstract: PURPOSE:To prevent a red and green light-emitting body from damaging at the time of particle beam epitaxial growth, by providing an additional light-emitting layer contributing to blue light emission by particle beam epitaxial growth on a red and green light-emitting body formed by liquid-phase epitaxial growth. CONSTITUTION:A light-emitting body 6 is formed on an N type GaP substrate 1 by liquid-phase epitaxial growth of the first N type layer, the first P type layer, the second P type layer, and the second N type layer 2-5. Zn and O are added to the neighborhood of the first P-N junction 7 between the layers 2 and 3. N is added to the neighborhood of the second P-N junction 8 between the layers 4 and 5. These junctions are positively biased and emitted in red and green light. In addition, Zn is diffused except for the center of the body 6. The third and forth P type layers 9, 10 are provided to enter the layer 4. Separation grooves 11, 12 are provided to reach the layer 4 by etching along the boundary among the layers 5, 9 and 10. The fifth P type layer 13 of Ga1-xPx (0<=x<=1), the sixth P type layer 14 and the third N type layer 15 of GaAs are grown by particle beam epitaxial method on the layer 10 thereafter.
Patent JP-H08277216-A (JP)
Title: Powdery agent and control of release rate of medicine
Inventor: OTSUKA MAKOTO
IPC: A61J3/02
Filed: 1996-02-09
Abstract: PURPOSE: To freely control the release rate of a medicine from an adsorption carrier. CONSTITUTION: This powdery agent is prepared by adsorbing a hydrophobic medicine such as vitamin K1 on an adsorption carrier, chemically modified with hydrophobic groups such as alkyl groups and having the surface undergoing the hydrophobic treatment and further a porous structure such as silica gel. Since the hydrophobic medicine is efficiently powdered and the consistency and cohesiveness are deteriorated, the handleability can remarkably be improved in a process for formulating the medicine into a pharmaceutical preparation. The air oxidation, photodecomposition, etc., can effectively be suppressed. At least one factor of the pore diameter, grain diameter and degree of the hydrophobic surface treatment of the adsorption carrier, as desired, can suitably be set to thereby regulate the diffusion rate of the medicine in pores of the adsorption carrier, e.g. in an alimentary canal.
Patent JP-H08216990-A (JP)
Title: Log speed and ground speed holding device for ship
Inventor: ABE MINORU
IPC: G05D1/00
Filed: 1995-02-13
Abstract: PURPOSE: To provide a log speed and ground speed holding device for a ship which is so constituted as to automatically control a log speed or a ground speed to a set ship speed, for example 0 not, when various observation and investigation on an ocean are executed. CONSTITUTION: In a ship provided with a first thrust generating device 3 to generate thrust in a longitudinal direction; a second thrust generating device 4 to generate a turning-round moment, and a ship speed sensor 9 to output a log speed in a longitudinal direction, a log speed and ground speed holding device for a ship comprises a ship speed holding button 17 to set a log speed in a longitudinal direction; and a control device 12 to control first and second thrust generating devices 3 and 4 so as to hold a deviation between a set ship speed over water in a longitudinal direction when a ship speed holding button 17 is pushed and ship speeds over water before and after input from the ship speed sensor 9 at a constant value.
Patent JP-H06236550-A (JP)
Title: Optical disk device
Inventor: INOUE OSAMU
IPC: G11B7/005
Filed: 1993-02-12
Abstract: PURPOSE:To prevent the occurrence of off-track operation by delaying an output driving current change of a recording current driving means by a recording power control means more than a time constant of a control band of a reproducing power control means. CONSTITUTION:Information is recorded and reproduced by converging light from a semiconductor laser 31 on a recording medium. A slow start circuit 32 is started at the time of inputting a power source by turning on a power switch 33 to gradually increase a voltage and a current so as to prevent a surge current, etc., from flowing into the semiconductor laser 31. A part of the output light of the semiconductor laser 31 is received by a power detecting photodetector 34 which is a light receiving element for detecting light emitting power of the laser 31. At the time of reproducing information by lighting the laser 31 with reproducing power, the laser 31 is lit by making a reproducing current driving circuit flow a current into the laser 31 with a voltage from the circuit 32, and the light of the laser 31 is received by the photodetector 34, and its output signal is amplified by a first stage amplifier 36, and then its output voltage is compared with a target voltage by a reproducing power control circuit 37, and by its difference voltage, the reproducing current driving circuit 35 is controlled, so that the light emitting power of the laser 31 is controlled to be desired reproducing power.
Patent JP-S54117616-A (JP)
Title: Frequency multi-conversion system of vsb signal
Inventor: TABATA SHIYUUICHI
IPC: H04J1/04
Filed: 1978-03-03
Abstract: PURPOSE:To reduce vestigial group delay equalization distortion by selecting two VSB signals by a common filter under the state where vestigial side-band band sides of them are caused to approach each other. CONSTITUTION:Carrier fc MHz is modulated by television signal 11, and the VSB signal where main components are the lower side-band is defined as basic group 12 of multiple signals. Carriers F'3c and F4c are modulated respectively in unit of basic  group 12, and corresponding upper side-band VSB signal 3C' and lower side-band  VSB signal 4C are extracted by the filter of common filter characteristic 15 and are arranged on the line frequency so that vestigial side-band bands may be adjacent to each other. The group delay distortion characteristic of this filter has a small group delay distortion at the center, and vestigial side-band bands of VSB signals 3C' and 4C are in the part where the equalization precision of group delay distortion is high because they are placed at the center of the pass band of filter characteristic 15.
Patent JP-H11224359-A (JP)
Title: Illegal coin use prevention system
Inventor: TAKAHASHI KAZUKI
IPC: G07D9/00
Filed: 1998-02-05
Abstract: PROBLEM TO BE SOLVED: To more effectively prevent the use of forged/altered illegal coins at low cost by reducing the will to use the illegal coins. SOLUTION: When it is detected by a change check sensor 30 for detecting whether the coin is legal or not at an automatic vending machine or exchanger that the illegal coins are continuously inserted more than a set number, the return of coins is stopped, the user of the illegal coins is photographed by cameras 18 and 19 and abnormality is displayed.
Patent JP-S55117513-A (JP)
Title: Manufacture of wire rod with periodically changing sectional area
Inventor: SHIMADA WATARU
IPC: B21C37/00
Filed: 1979-03-02
Abstract: PURPOSE: To change the sectional area of the rod periodically and similarly, by intermittently heating and softening the rod to be worked, during the rod is traveling forward.  
     CONSTITUTION: The rod 1 to be worked is traveled between the plasma arc generator 3 and the electrode 4, under a specified tension. The plasma arc generator 3 is reciprocated so as to intermittently irradiate the plasma arc 5 to the rod 1 which is hereby heated to soften. If the tension to be given to the rod 1 is set to a value, higher than the yield point of the softened part of the rod 1, and lower than the smaller value of either the yield point of unsoftened part of the tensile strength of softened part, the rod 1 can be drawn without causing breakage, and hollows are intermittently formed in the axial direction of the rod 1. Besides, if the diameter of the rod 1 is smaller than the width of the plasma arc 5, the rod 1 is uniformly heated over the entire section, and the section of hollowed parts become approximately perfectly similar to the sectional shape of the material. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H05184925-A (JP)
Title: Catalyst material for methanization reaction
Inventor: MORISHITA MASAO
IPC: C07C1/04
Filed: 1992-01-14
Abstract: PURPOSE:To obtain an inexpensive catalyst material for methanization reaction having the same catalytic activity as a noble metal by applying acid dipping treatment to an alloy containing Ru and/or Pd in a specific ratio and substantially composed of the remainder of Ti. CONSTITUTION:A catalyst is used to accelerate methanization reaction in the chemical reaction. The catalyst contains a material constituted by applying acid dipping treatment to an alloy containing 0.01-2.0wt.% Ru and substantially composed of the remainder of Ti. Pd may be used in place of Ru. Further, Ru and Pd may be compositely added in an amount of 0.01-2.0% in total. By this method, the catalyst has the same catalytic activity as a noble metal.
Patent JP-S61184462-A (JP)
Title: Detection of titration final point
Inventor: OODO TOKIO
IPC: G01N27/26
Filed: 1985-02-12
Abstract: PURPOSE:To shorten a titration time by reducing the number of times of distribution, by calculating the pH of a liquid specimen by calculating the dripping amount of a titration agent at two points in the vicinity of the titration final point of a titration curve, corresponding pH and the amount of the titration agent consumed from the pH of a titration final point to the titration final point. CONSTITUTION:A pH-time curve, when sake was titrated, is shown by a drawing. That is, the distribution amount of 0.1M NaOH from pH5.5 or more was conventionally set to 0.05ml   0.01ml   0.005ml whereas, in this case, the distribution amount of 0.1M NaOH is set to a constant amount of 0.2ml and the amount of 0.1M NaOH required from first two points C, D after reaching pH6.0 to final titration point pH7.0 is calculated from a calculated value. As a result, the calculated value is 0.79ml to the constant measured value of 0.77ml of a titration amount and a titration time comes to 1min. By this method, the titration time can be shortened to 1/2 or less as compared with 2.5min according to a conventional method.
Patent JP-S55117118-A (JP)
Title: Wide-angle zoom lens
Inventor: KIMURA MASATOSHI
IPC: G02B15/16
Filed: 1979-03-02
Abstract: PURPOSE: To obtain the wide-angle zoom lens which is small and light, has sufficient wide-angle effect, zoom effect and brightness and has further superior aberrations by letting the various specifications of the lens system of the 7-group 7-element constitution of front group 3 elements and rear group 4 elements satisfy the various specified conditions.  
     CONSTITUTION: This is constituted by the 7-group 7-element lenses of front group 3 elements and rear group 4 elements, the respective group lenses being spaced mutually by air spacings. This lens is so constituted that the focal length of the entire system is changed by changing the spacing between the front group and rear group. Satisfying the various conditions of formulas (1)W(5) yields the wide- angle lens which provides sufficient wide-angle effect and zoom effect, has sufficient brightness for practicable use and is small. Further by satisfying the various conditions of formulas (6)W(9), coma aberrations, magnification chromatic aberrations,  curvature of field and spherical aberrations may be corrected extremely well. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H07215352-A (JP)
Title: Foam discharging device
Inventor: SEDAI FUMIHIKO
IPC: B05B7/00
Filed: 1994-01-28
Abstract: PURPOSE:To prevent the scattering of remaining foam when an overcap is pushed down and homogenize the foam, when discharged, into a creamy form. CONSTITUTION:In a foam discharging device 10 having a base cap 12 for covering the opening part of a pressure type container 11 and an overcap 13 engageable with the base cap 12 slidably between its upper opening position and the lower closing position, the foam flow passage 34 of the base cap 12 and the foam discharging passage 44 of the overcap 13 are provided with foam homogenizing means 16 and 22, respectively.
Patent JP-H03229833-A (JP)
Title: Manufacture of hard alloy
Inventor: FUKUDA MASAHIDE
IPC: B22F3/15
Filed: 1990-02-06
Abstract: PURPOSE:To manufacture a hard alloy of fine and homogeneous grains by specifying the compsn. of powder alloy and executing sintering and hot isostatic pressure treatment at a temp. in the state where liquid phases are not present. CONSTITUTION:The compsn. of this hard alloy is formed of 5 to 45vol.% of at least one kind among Fe, Ni and Co and the balance at least one or more kinds among the carbides, nitrides and carbon nitrides of the groups IVa to VIa. The alloy is sintered in the range in the state of solid phases, i.e., from the one directly below the liquid phase appearing temp. of the series of the powder compsn. to the liquid phase appearing temp. -80 deg.C. The temp. of hot isostatic pressure treatment is regulated similarly. In this way, the hard alloy having approximately true density and having a structure of fine and homogeneous grains can be obtd.
Patent JP-S55147954-A (JP)
Title: Manufacture of armature for rotary electric machine
Inventor: TERAYAMA KOUZOU
IPC: H02K3/47
Filed: 1980-03-03
Abstract: PURPOSE:To increase the productivity of an armature, and prevent unbalanced rotation thereof, by providing trancated-conical positioning pins in coil holding recesses in an insulating board, inserting coils in the coil holding recesses, applying an insulating sheet to the insulating board, and bonding the insulating sheet to the insulating board with ultrasonic waves. CONSTITUTION:Coil holding recesses 3 having inclined side surfaces are provided in a flat insulating board 1. Truncated-conical positioning pins 4 having downwardly diverging side surfaces are provided in the central portions of the recesses 3. Coils 7 are wound around the positioning pins 4 such that the coils 7 are spaced from the inclined side surfaces of the recesses 3. An insulating sheet 10 is then placed on the insulating board 1. The insulating sheet 10 and the insulating board 1 are sandwiched between holding jigs 12a, 12b, and the sheet 10 and the board 1 are bonded together with ultrasonic waves. Thus, the productivity of a armature can be increased without using a resin. Owing to the effect of vibrations occurring during the ultrasonic bonding operation, a balanced armature can be produced. Moreover, a armature which is not broken even when the positioning pins are thermally expanded can be obtained.
Patent JP-2000224114-A (JP)
Title: Optical amplifier for amplifying multiple wavelengths
Inventor: FUJITA MASAYUKI
IPC: H04B10/07
Filed: 1999-02-02
Abstract: PROBLEM TO BE SOLVED: To provide an optical amplifier for amplifying multiple wavelengths that monitors an input output signal light for each wavelength. SOLUTION: An optical branch section 20 branches an input light to an optical amplifier section 30 to extract an optical signal with a wavelength, in response to temperature and light receiving units 25-1-25-n receive lights of each wavelength. An input level monitor circuit 26 generates a signal reflecting a power level of the input light to the optical amplifier section 30 from the signal received from the light receiving units and an A/D converter circuit 27 applies A/D conversion to the signal. Similarly, a signal reflecting a power level of an output light of the optical amplifier section 30 is obtained by a circuit block, consisting of an optical branching section 40 to an A/D conversion circuit 47.  Temperature control circuits 24, 44 change each element temperature of arrayed waveguide gratings(AWG) 21, 41 to control the wavelength of a transmission light of each AWG to acquire the power levels of a signal component and a noise component. A processing circuit 60 calculates the gain and noise figure of the optical amplifier section 30 from each acquired power level.
Patent JP-S60169656-A (JP)
Title: Cylinder block of multi cylinder internal-combustion engine
Inventor: SHIROO KAZUHIKO
IPC: F02F7/00
Filed: 1984-02-13
Abstract: PURPOSE:To easily constitute a mold for casting a cylinder block, by supporting its main journal part for a main bearing and a skirt part through a wall structure. CONSTITUTION:A case structure, formed by two sheets of wall parts 1a, 1b in the vertical direction and one sheet of wall part 1c in the horizontal direction, connects a skirt part 4 to a main journal part 5 for a main bearing, forming an empty chamber 7. Consequently, the main journal part 5 results in the firm connection to the skirt part 4. Further a cylinder block of high reliability can be presented by enabling its mold to be easily constituted and easily ensuring also its dimensional accuracy because the wall parts 1a, 1b of the case structure are flatly further parallelly formed.
Patent JP-H02203639-A (JP)
Title: Electric signal supplying method
Inventor: SUMI TATSUMI
IPC: H04L12/40
Filed: 1989-02-02
Abstract: PURPOSE:To attain the stable operation of a circuit cell without causing a malfunction and an erroneous decision due to external noise by sending a signal directly even to a circuit cell remotest from a signal source via 1st and 2nd signal lines from an electric signal generating source arranged at the end of the circuit cell. CONSTITUTION:An electric signal is transmitted from a circuit cell C1 closest to a signal source SG to a circuit cell Cn remotest sequentially through a 1st signal line 1 in an electric circuit provided with a circuit block 3 in which plural circuit cells C1-Cn of the same circuit constitution and circuit operation are arranged in a line and with the signal source SG supplying the electric signal to the circuit cells C1-Cn and the electric signal is transmitted directly to the remotest cell through a 2nd signal line 2. That is, the number of supply paths of the electric signal is increased to two positions, the impedance of the signal line is decreased and the electric signal is supplied directly from the signal source causing the most attenuation to the electric signal to the remotest circuit cell Cn to supply the electric signal uniformly to the circuit cells C1-Cn. Thus, the stable circuit cells with not malfunction are obtained.