baber/WOPTO huggingface dataset:
Patent JP-H0959083-A (JP)
Title: Device for producing single crystal of compound semiconductor
Inventor: SAKASHITA YOSHIHIKO
IPC: H01L21/208
Filed: 1995-08-21
Abstract: PROBLEM TO BE SOLVED: To provide a device for producing the single crystal of a compound semiconductor consisting of a cylindrical body having an airtight chamber of a reversed U-shaped cross section, capable of obtaining a high quality single crystal by suppressing a change in the composition of a raw material for a crystal growth by forming a communicating passage, a lower end of which is formed as a part kept at the state of a lower temperature than the melting point of a component having a high dissociating pressure, for communicating the inside and outside of the airtight chamber each other, and a guiding passage for introducing the vapor of the component, having the high dissociation pressure generated at a reservoir, to the periphery of a raw material accommodating vessel and in the upper direction SOLUTION: This device for producing a single crystal of a compound semiconductor using the Bridgeman method is shown in the figure. A seed crystal 24 of ZnSe is placed in a crucible 14. An evacuation in a high pressure vessel 1 is conducted through a gas supplying and exhausting passage 7, and then Ar gas is filled in it. To the periphery of the crucible 14, exhausting and supplying of the gas is conducted through an inside gap 22 and an outside gap 23. A raw material is molten by heating the crucible 14 with a main heater 8. At the same time, Zn vapor is generated by heating the component having a high dissociation pressure (Zn) 18 in a reservoir 17 with a sub heater 9.
Patent JP-S58109976-A (JP)
Title: Seal impression reader
Inventor: NAKATSUKA KUNIO
IPC: G06V10/24
Filed: 1981-12-24
Abstract: PURPOSE:To read accurately plural seal impressions of a bill, by detecting the presence/absence of a seal impression at each beam scanning, and providing a seal impression cutout section cutting out a part detected for the seal impression for a length byond a certain length orthogonal to the beam scanning. CONSTITUTION:A reading range set on the bill is scanned for the beam, a reflected light is A/D-converted and an address 11 toward X is generated at an X address counter 11 synchronized with the scanning applied to a seal impressing cutout section 5'. Simultaneously, a seal impression detection section 13 discriminates whether or not one line scanning has a seal impression. When the seal impression is detected, a Y address counter 12 is cleared, and the seal impression is detected in the succeeding lines, the counter 12 is counted up. When no seal impression is detected in the scanning line, the value of the Y address counter 12 and the set value (minimum length of seal impression) are compared, and when the value is more than the set value, the output of the counter 12 is outputted to a memory section as the Y address and the output of the A/D converter 4 is cut out as the seal impression data. Thus, plural seal impressions is read accurately.
Patent JP-S58110035-A (JP)
Title: Manufacture of semiconductor device
Inventor: TAMURA KOUICHI
IPC: H01L21/22
Filed: 1981-12-24
Abstract: PURPOSE:To contrive the improvement in the yield of wafers sent to the next process by a method wherein reverse diffusion is applied by heat treatment when the thickness of a low-impurity concentration region having resistivity within a  range of required value is thicker than a predetermined value, and the thickness  is corrected to a desired value. CONSTITUTION:An epitaxial layer is formed on an Si single crystal substrate 11 having a resistivity of 0.005-0.018OMEGAcm by adding B and with targets of 4- 6OMEGAcm in resistivity, 50+ or -5mum in thickness. In this case, when a low-concentration region 12 is grown, reverse diffusion is done from the substrate 11, and a region 13 having concentration close to that of the substrate is generated. When the thickness of a region 12 exceeds a target value and is 57mum, a region 14 becomes high in concentration by reverse diffusion after processing at 1,200 deg.C for four hours. The region 12 becomes thin by about 4mum and has a thickness of about 53mum to meet a target thickness and forms a desired layer. After that, a desired element is obtained by a well known process. This method increases wafers usable at the next process.
Patent JP-S6367074-A (JP)
Title: Laser scanner
Inventor: GOTO SHINJI
IPC: H04N1/113
Filed: 1986-09-08
Abstract: PURPOSE:To eliminate an influence of a return light caused by a rotary polygon mirror, and to improve the durability of a laser by constituting the titled scanner so that a semiconductor laser is not allowed to emit a light beam, at the time of a state that a luminous flux from an optical deflecting means returns to the semiconductor laser. CONSTITUTION:When a laser is turned on in an initial state first, and a photodetector detects the laser, the laser is turned off, and after a prescribed clock, ON and OFF of the laser by image information are started. Subsequently, after a clock corresponding to an image area of a one line portion, the laser is turned off, and turned off continuously during a prescribed clock including the time when a return light is generated. After its prescribed clock, the laser is turned on immediately before scanning the photodetector part. By turning on the laser by such a sequence, the time when the laser is turned on per the number of print sheets is decreased naturally, and when a life of the laser is as prescribed, the number of print sheets per the laser can be increased.
Patent JP-2001039355-A (JP)
Title: Crawler tractor
Inventor: SAKAI TORU
IPC: B62D49/00
Filed: 1999-07-27
Abstract: PROBLEM TO BE SOLVED: To improve workability at trouble caused time and maintenance time by constituting a traveling device part as a lower body, constituting a car body part constituted of an engine, a transmission case, a hood and a cabin as an upper body, and divisibly constituting the lower body and the upper body. SOLUTION: A traveling device 1 of a crawler tractor 1 is supported on a crawler frame 2, and a traveling/steering operation device 20 for transmitting travel driving force and steering driving force to a driving sprocket 11 of the traveling device 1 is arranged in a front lower part of an engine. These crawler type traveling device 1 and traveling/steering operation device 20 are integrally arranged to constitute a lower body 31, and the engine 3, a transmission case, a hood 4 and a cabin 9 are integrally arranged to constitute an upper body 22. This upper body 32 is detachably arranged on the lower body 31, and support brackets 26, 27 erected in front/rear parts of the lower body 31 are installed on and fixed to flanges 5a, 5b formed in front/rear end parts of the transmission case.
Patent JP-S6273721-A (JP)
Title: High frequency power transmitter
Inventor: OGAWA YOSHIFUMI
IPC: H01L21/302
Filed: 1985-09-27
Abstract: PURPOSE:To facilitate the matching work of an impedance by varying the opposed area of a moving electrode of a capacity coupler coupled with a moving side electrode for varying the opposed interval of electrodes to be processed and a stationary electrode of a capacity coupler opposed to the moving plate upon regulation of the interval of the electrodes to be processed, thereby maintaining the total impedance between the electrodes to be processed and the coupler constant. CONSTITUTION:When an intervals between an electrode 2 and an opposed electrode 3 is necessarily altered, a shaft 4 is moved in a direction of an arrow 10 to be regulated. Thus, since the impedance from the electrode 3 to a high frequency power source 9 is varied, the impedance is matched by a matching box 8. At this time, when the interval between the electrode 2 and the electrode 3 is wide, a moving electrode 6 is disposed at a lower portion of the electrode 7 having a wide width to move to a position where the electrode 6 rises and the width of the electrode 7 is gradually narrowed as the interval to the electrode is narrowed. Thus, the opposed area of the electrodes 7, 6 is altered to reduce the matching range of the impedance of the box 8 by varying the high frequency power transmitting capacity.
Patent JP-H0660388-A (JP)
Title: Optical head device
Inventor: TAKAHASHI NAOMASA
IPC: G11B21/02
Filed: 1992-08-10
Abstract: PURPOSE:To provide an optical head device capable of high-speed access. CONSTITUTION:In a head unit, a length Ly between bearings 20a and 20c and between bearings 20b and 20d arranged in the direction parallel with the diametral direction of an optical disk out of plural bearings arranged in a slider 14 is wider than the length between bearings 20e and 20f arranged in the direction orthogonal to the diametral direction of the optical disk. Therefore, the resonance frequency of secondary resonance peculiar to the slider 14 moved on guide rails 30 in the diametral direction of the optical disk can be shifted to a high frequency. Consequently, secondary resonance is practically suppressed.
Patent JP-S6368655-A (JP)
Title: Methacrylate resin molding material and production thereof
Inventor: NAGAI HARUO
IPC: C08F2/44
Filed: 1986-09-11
Abstract: PURPOSE:To provide the title molding material which is not discolored during high-temperature polymn., has excellent mechanical strengths and resistance to heat and solvents and gives molded products such as artificial marble, etc., by blending a specified partially crosslinked gel-like polymer with aluminum hydroxide powder. CONSTITUTION:100pts.wt. mixture of 100pts.wt. material (a) for resin, selected from the group consisting of an alkyl methacrylate monomer (i), an alpha,beta- ethylenically unsaturated monomer mixture (ii) mainly composed of the component (i) and syrup (iii) contg. a polymer obtd. from the component (ii) and 2-250 pts.wt. crosslinking agent (b) is partially polymerized with 0.15-1.5pts.wt. acid (c) having a pKa (in water at 25 deg.C) of 0.2-4.9 to obtain a partially crosslinked gel-like polymer (A) having a polymer content of not higher than 80wt% wherein the polymer content is increased by 4-65wt% higher than that of the mixture of the components (a) to (c). 20-80wt% component A is blended with 80-20wt% aluminum hydroxide powder (B) to obtain the title molding material. The molding material is cured at 90-180 deg.C under a pressure of 20-500kg/cm<2> to obtain a molded product.
Patent JP-H0263509-A (JP)
Title: Device for cleaning bath tub water
Inventor: HIROSE MOTOAKI
IPC: B01D35/027
Filed: 1988-08-29
Abstract: PURPOSE:To obviate the generation of the hose collapse and hose breakage of a suction hose and discharge hose by providing a suction hose connecting port and discharge hose connecting port to the upper part of the device for cleaning bath tub water. CONSTITUTION:A bath tub unit 9 having a bath tub water suction port 10 in the lower part and the cleaning water discharge port 13 in the upper part is installed in the bath tub 8. The body 1 of the device for cleaning the bath tub water provided with a circulating pump cleaning filter 5, the suction hose connecting port 6 and the discharge hose connecting port 7 is provided to the outside of the bath tub 8. Further, the bath tub suction port 10 and the suction hose connecting port 6 are connected by the suction hose 14. The cleaning water discharge port 13 and the discharge hose connecting port 7 are connected by the discharge hose 15. The suction hose connecting port 6 and the discharge hose connecting port 7 are provided to the upper part of the body 1 for cleaning the bath tube water. As a result, the weight applied in the part of the hoses 1 4, 15 in contact with the upper edge of the bath tub and near the hose 14 connecting port and hose 15 connecting port is small and, therefore, the generation of the hose collapse and hose breakage is obviated.
Patent JP-H1053619-A (JP)
Title: Production of polyolefin resin composition
Inventor: EI NAOFUMI
IPC: C08F4/6592
Filed: 1996-08-12
Abstract: PROBLEM TO BE SOLVED: To provide an efficient production process for a rubber-like copolymer which is rich in randomness and narrow in composition distribution and a polyolefin resin composition having excellent balance between stiffness and impact resistance and easy handleability. SOLUTION: The random copolymerization of ethylene and an α-olefin of 4 to 18 carbon atoms are carried out in the presence of a catalyst system containing the components (A) and (B) described below, further using a polyolefin powder as a dispersant and a resin component to produce a mixture of ethylene-α-olefin copolymers in which the content of the polyolefin powder and the α-olefin component is 5-40mol% and the ρ value represented by the formula is in the range from 0.5-1.5: (A) a cyclopentadienyl ring-bearing compound of a transition metal in group IV in the periodic table; (B) at least one selected from the following three: (1) aluminoxane, (2) a compound reacting with a transition metal compound to give a stable anion, and (3) an organoaluminum compound.  The formula: ρ=2[E].[A]/[EA] where [E] is the molar fraction of the ethylene content, [A] is the molar fraction of the α-olefin and [EA] is the molar fraction to the dyad links.
Patent JP-S59103996-A (JP)
Title: Fluid control device
Inventor: TAMURA KOUZOU
IPC: F04D15/00
Filed: 1982-12-06
Abstract: PURPOSE:To allow control of an amount of liquid to be induced at an inlet of a pressure tank, by simply adding a valve adapted to open and close together with a pressure responsive member, which is sensible to pressure and flow, to a switch means for starting and stopping an operation of a pump, etc. which means is opened and closed by an operation of the pressure responsive member. CONSTITUTION:When a discharge pressure of a pump becomes sufficiently high, and a discharge flow becomes greater than a flow upon opening of a switch 26 in a control switch means 1, pressure is applied to diaphragms 15 and 17 to compress a spring 30. At this time, an internal pressure of a pressure chamber 32 prior to a resisting valve 11 becomes greater than that of a pressure chamber 22 by a quantity of resistance generated by the resisting valve 11, and accordingly the pressure applied to the diaphragm 17 becomes greater than the pressure applied to the diaphragm 15, thereby pushing down a desk 29 and a valve 21 and continuing to operate the pump with the switch 26 closed. Thus, when the discharge pressure rises, an amount of water to be induced to a pressure tank 6 is controlled to be reduced by a groove 20 formed on the valve 21 and communicating a water flow line 10 with the pressure chamber 22. Accordingly, it is possible to keep long an operation time and an operation period, and make the pressure tank 6 compact.
Patent JP-S6369067-A (JP)
Title: Reproducing system for digital magnetic recording information
Inventor: WATAYA SHINICHIRO
IPC: G11B5/09
Filed: 1986-09-11
Abstract: PURPOSE:To improve a recording density by using an imcomplete integration circuit and eliminating the error of position information due to a peak shift. CONSTITUTION:A magnetic head detecting signal A through an amplifier 2 is given to a differention circuit 4 and an incomplete integration circuit 7', both output signals are subtracted and processed, an subtracting signal D is given to a zero cross point detecting circuit 5 and based on the output signal of the circuit, a digital information signal is reproduced. The circuit 7', since the information of a low frequency part is omitted, inputs the signal A to a low frequency information correcting circuit 11 composed of an amplitude control circuit 11, an amplitude control comparator 12 and a filter 13 in order to correct it and adds 10' the output signal to the signal D. Thus, by eliminating the error of the position information due to the peak shift, the recording density can be improved.
Patent JP-H1041238-A (JP)
Title: Heat treatment method of substrate
Inventor: KOBAYASHI TOSHIYUKI
IPC: H01L21/26
Filed: 1996-07-22
Abstract: PROBLEM TO BE SOLVED: To provide a heat treatment method which can sensitively detect whether the outside air flows into a heat treatment furnace, by measuring oxygen concentration of gas in the heat treatment furnace, and prevent the errorneous treatment of a substrate. SOLUTION: The intake vent of a gas sampling tube 54 is arranged at the position equivalent to the furnace port side tip position of a substrate W stored in a heat treatment furnace 10, or at the position nearer to the furnace port than the tip position. In order to prevent the outside air from being inhaled in the gas sampling tube through the port 12 of the heat treatment furnace, the flow velocity of purge gas flowing out from the heat treatment furnace through the furnace port and the flow rate of gas flowing into the gas sampling tube through the intake vent are adjusted.
Patent JP-S59103111-A (JP)
Title: Unmanned traveling truck
Inventor: ITOU KATSUMI
IPC: B61B13/00
Filed: 1982-12-03
Abstract: PURPOSE:To improve the turning accuracy and to turn the traveling of an unmanned truck accurately in a prescribed direction by compensating automatically the steering control quantity of turning control from the deviation between a reference escape angle obtained between calculated and stored unprocessed and processed working sites and the actual escape angle. CONSTITUTION:Various types of signals of copying sensors 5A and 5B, a distance sensor 6 and a direction sensor 7 are supplied to an arithmetic controller 10 consisting mainly of a microcomputer via an input interface 11. Based on these signals, a solenoid valve 12 is actuated to drive a hydraulic cylinder 8 which functions as an actuator. The drive of the cylinder 8 operates front wheels 2 and a gearbox 13. Then an arithmetic device is used to obtain the deviation between the escape angle of the calculated and stored unprocessed working site and an actual escape angle. Then the steering quantity of the turning control is automatically compensated. Thus, the turning accuracy is improved and the traveling of an unmanned truck is controlled in a prescribed direction.
Patent JP-S58128582-A (JP)
Title: Automatic gas shut-off device
Inventor: HASHIMOTO OSAMU
IPC: F16K17/02
Filed: 1982-12-03
Abstract: PURPOSE:To prevent unburnt gas from discharging at the re-opening of flow passage by a structure wherein an opening retarding means and a small quantity supply valve are provided. CONSTITUTION:When a valve drive shaft 8 is pushed down to re-open the flow passage, the shaft 8 will not go down further beyond the midway position retarded by the opening retarding means 54. The pressure in a supply pressure chamber 20 is raised by the inflow of gas from the upstream side of a shut- off valve 18 through the small quantity supply valve 60 and a throttle passage 57, resulting in raising a diaphragm boss 23 so as to exactly confront the ball escape groove 32 of the diaphragm boss 23 with a ball 28 and consequently to make further pushing-down of the valve drive shaft 6 possible. When the ball escape groove 30 exactly confronts with the ball 28 by further pushing-down of the valve drive shaft 6, the shut-off valve 18 is open, resulting in quickly raising the pressure in the supply pressure chamber 20 in order to raise the diaphragm boss 23 up to its extreme position and to push the ball 28 into the ball escape groove 30. In such a manner as mentioned above, the shut-off valve 18 is held at its open state.
Patent JP-S60105741-A (JP)
Inventor: NAKAHARA TOSHIO
IPC: F28D17/00
Filed: 1983-11-11
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-S58115356-A (JP)
Title: Calorimeter for gas
Inventor: MAEDA SHIYOUSAKU
IPC: G01N25/30
Filed: 1981-12-29
Abstract: PURPOSE:To ensure the accurate measurement of the calorific value of fuel gas in a continuous and instantaneous way, by providing a powder grain oxidation catalyst layer and then a heater into a gas flowing path and setting temperature heaters before the catalyst layer, between the catalyst layer and the heater and after the heater respectively. CONSTITUTION:The end pipes 2 and 3 are stuck to both ends of a case 1 which forms a flowing path of a fuel gas G. Then a temperature sensor 10, a powder grain oxidation catalyst layer 14, a temperature sensor 11, a heater 13 and a temperature sensor 12 are set successively from the side of the gas inlet (side of the pipe 2). Each of the sensors 10-12 is formed by enclosing a platinum net wires, etc. into a pipe of alumina ceramic, etc. These sensors are then enclosed by the glass wool 16, etc. and put into branch pipes 4, 5 and 6 respectively. The heater 13 is put through a branch pipe 7. The layer 14 is made of Cu2O, V2O5, etc., and Al2O3 15 is packed around the heater 13. Then the calorific value Q of the gas G is obtained accurately from equationsI-III, where t0 is the temperature of G obtained before the oxidation reaction, t1 is the temperature of G obtained after the oxidation reaction, t2 is the temperature of gas G2 due to the calorific value (q) supplied from the heater 13 and Cp is the specific heat at constant pressure of CO2 produced from G.
Patent JP-H0536411-A (JP)
Title: Nonaqueous solvent secondary battery
Inventor: YAMADA SHUJI
IPC: H01M4/525
Filed: 1991-07-31
Abstract: PURPOSE:To provide a nonaqueous solvent secondary battery being excellent in charge and discharging cycle characteristic and heavy-current charge and discharge characteristic. CONSTITUTION:In a nonaqueous secondary battery which is provided with a negative electrode 6, which is composed of lithium, lithium allay or a compound containing lithium, a positive electrode 4, which contains at least one kind selected out of LiMn2O4, LiCoO2 and LiniO2 as positive electrode active material, and electrolytic solution, which is formed by dissolving electrolyte in nonaqueous solvent, material used as the positive electrode active material is characterized by the addition of phosphorus thereto.
Patent JP-H0960665-A (JP)
Title: Silent deenergization operating brake
Inventor: TERAJIMA MIKI
IPC: F16D55/00
Filed: 1995-08-22
Abstract: PROBLEM TO BE SOLVED: To provide a silent deenergization operating brake which can be silently operated by solving a noise generated by the collision of the inner circumferential surface of the guide hole of an armature with the outer circumferential surface of a bolt head, which is generated when a motor is started. SOLUTION: A deenergization operating brake is formed in such a way that the head 2A of a bolt 2 projected on the end surface of a field 1 attached at the rear end of the frame of a motor is inserted through a guide hole 5A formed on an armature 5 so that the armature 5 is slidably guided and supported in a motor shaft direction. An annular shock absorbing body 6 is intervened between the outer circumferential surface of the head 2A of the bolt 2 and the inner circumferential surface of the guide hole 5A so that the direct collision of the inner circumferential surface of the guide hole 5A of the armature 5 with the outer circumferential surface of the head 2A of the bolt 2, which is generated when the motor is started, is avoided by the annular shock absorbing body 6, thus the occurrence of a noise is prevented.
Patent JP-H05211444-A (JP)
Title: Method for integration-type a/d conversion and integration-type a/d converter
Inventor: UEIN SHII GEKU
IPC: H03M1/52
Filed: 1992-07-17
Abstract: PURPOSE: To improve the multiplication error by improving the converting step of the integrated A/D conversion. CONSTITUTION: The converting step of A/D conversion during a run-up period in which analog input charges are integrated is divided into a sub-step (a) for inputting a positive reference charge to an integrator 106, a sub-step (b) for inputting a positive reference charge to the integrator 106 when the accumulated charges of the integrator 106 are positive for a negative reference charge when the accumulated charges are negative, a sub-step (c) for inputting the negative reference charge to the integrator 106, and a sub-step (d) for inputting the negative reference charge to the integrator 106 when the accumulated charges of the integrator 106 are positive or the positive reference charge when the accumulated charges are negative.