baber/WOPTO huggingface dataset:
Patent JP-S54110914-A (JP)
Title: High strength and high toughness steel
Inventor: FURUSAWA JIYUN
IPC: C22C38/48
Filed: 1978-02-20
Abstract: PURPOSE: A high strength and high toughness steel most suitable as steel plate for pressure vessel in the homogenized and tempered state which is manufactured by the addition of a proper amount of an alloy element capable of reducing the amount of C and also of enhancing yield strength without damaging toughness.  
     CONSTITUTION: A steel, containing 0.01 to 0.12% C, 0W20 to 0.50% Si, 1.30 to 1.60% Mn, 0.10 to 0.30% Cu, 0.20 to 0.50% Ni, 0.10 to 0.30% Cr, 0.08 to 0.50% Mo, 0.04 to 0.10% V, 0.01 to 0.03% Nb, 0.02 to 0.06% Al, and remaining-Fe and having a C eq  value of 0.44 to 0.48, represented by the relationship C eq  = C + (Si/24) + (Mn/6) + (Ni/40) + (Cr/5) + (Mo/4) + (V/14) and a PCM value of less than 0.23, represented by the relationship PCM = C + (Si/30) + (Mn/20) + (Cu/20) + (Cr/20) + (Ni/60) + (Mo/15) + (V/10) + 5B, is subjected to a homogenizing and tempering treatment for application. The steel plate has a yielding point of more than 25 kg/mm 2  at 350°C and a toughness level of  v T s  -46°C, and also is excellent in weldability. Thus, it is most suitable for pressure vessel. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S62177914-A (JP)
Title: Susceptor
Inventor: NOZAWA TATSUO
IPC: C30B25/12
Filed: 1986-01-30
Abstract: PURPOSE:To realize a susceptor, a surface temperature thereof is kept constant and which resists a thermal shock, by using a carbon base material having high electrical resistivity and forming an SiC film having no pore and predetermined thickness or more onto the surface of the base material. CONSTITUTION:The electrical resistivity of a carbon base material for a susceptor is brought to 1,600-5,500muOMEGAcm, and a dense SiC film having no communicating pore and thickness of 10mum or more is shaped onto the surface of the base material. Since the penetration depth of induced currents is proportional to the specific resistance of the carbon base material for the susceptor, electrical resistivity is made higher than conventional devices as mentioned above, thus equalizing currents flowing in the susceptor. Consequently, the generation of cracks in an SiC film shaped on the surface of the susceptor can be prevented. Power absorbed to the susceptor is increased, and heating efficiency is improved. The thickness of the SiC film is brought to 10mum or more because impurities contained in the carbon base material is not heated.
Patent JP-H11335155-A (JP)
Title: Calcium phosphate cement and calcium phosphate cement composition
Inventor: SAWAMURA TAKENORI
IPC: A61K6/898
Filed: 1999-01-27
Abstract: PROBLEM TO BE SOLVED: To obtain a cement that can suppress the viscosity increase in the kneading, even when the weight ratio of the kneading solution is low, shows excellent operability and moldability with the curing time shortened and gives the hardened or cured product of high strength. SOLUTION: Powdery calcium phosphate is mixed with N-alkyl-D-glucamine (the alkyl is methyl, ethyl, n-propyl or iso-propyl) to prepare the objective calcium phosphate cement or water is added to the phosphate cement and the mixture is kneaded to give the objective cement composition. The N-alkyl-D- glucamine has an average particle size of 0.1-100 μm and its content is 0.05-5 pts.wt., per 100 pts.wt. of the cement. In a preferred embodiment, the glucamine is included in the cement composition in an amount of 0.1-10 pts.wt. The N- alkyl-D-glucamine may be replaced with an alkanolamine (the alkanol means methanol, ethanol, n- or iso-propanol; the amine means mono-, di- or triamine).
Patent JP-S63186969-A (JP)
Title: Differential circulating thrust engine
Inventor: YONEDA SHIN
IPC: F03C1/06
Filed: 1987-01-29
Abstract: PURPOSE:To obtain an extremely labor-saving type fluid engine using the extremely decreased fluid flow from a pressurizing source by providing a gear at the applied point of the thrust of mated cylinders, engaging the gear with a fixed rack, and rotatively moving it. CONSTITUTION:When a motor 1 is started, the pressure fluid from a pump 2 uniformly pressurizes advance sections of cylinders 7-9 via an advance solenoid valve 3 through an advance pressurizing circuit 5 and an advance circulating circuit 10. The cylinder 9 moves a rack shaft 15 in the dotted line arrow 22 direction with the thrust in response to its inner diameter and rotates a gear 19 and a coaxial gear 20 counter-clockwise. The cylinder 8 likewise moves the rack shaft 15 and rotates a gear 17 and a coaxial gear 18. The gear 20 and gear 18 are engaged with the rack teeth 13. The thrust is neutralized at the resultant force point of the gear 20 and gear 18, and the output becomes zero. Therefore, the advance section of the cylinder 7 is moved in the advance 23 direction while only the thrust of the cylinder 7 differentiates the resultant force point. Accordingly, a differential circulating propulsion engine is obtained by continuously switching the solenoid valve 3 to the advance and return movement.
Patent JP-H06226464-A (JP)
Title: Welding current control method for inverter type dc resistance welding machine and device therefor
Inventor: TAKANO FUMITOMO
IPC: B23K11/24
Filed: 1993-02-05
Abstract: PURPOSE:To provide the welding current control method and device for the inverter type DC resistance welding machine capable of suppressing lowering of the output of a welding transformer and improving followability of a welding current for a target welding current waveform. CONSTITUTION:A differential absolute value arithmetic circuit 56 arranged to a welding controller 24 of the inverter type DC resistance welding machine differentiates the target welding current waveform outputted from a welding current waveform storage circuit 30 in the weld time, further, obtains an absolute value and outputs the arithmetic result to a frequency arithmetic circuit 58. The frequency arithmetic circuit 58 calculates frequency of triangular waves based on the differential absolute value and outputs this arithmetic result to a triangular wave generation circuit 46. Since frequency of a control pulse to generate the welding current is decided by frequency of the triangular waves, followability of the welding current for the target welding current waveform is decided by the differential absolute value of the target welding current waveform.
Patent JP-S55114606-A (JP)
Title: Pneumatic safety tire
Inventor: OGAWA MASAKI
IPC: C08L7/00
Filed: 1979-02-22
Abstract: PURPOSE: To secure longer distance of running at puncture and also to improve comfortableness to ride by forming a semicircular-sectional annular elastic reinforcement with weight of a constant ratio to the weight of tire from polybutadiene polymer, rubber and carbon black.  
     CONSTITUTION: A semicircular-sectional annular elastic reinforcement 5 with weight 15W30% to that of a tire is formed from a composition obtainable through compounding 4W10pts.wt. of organic vulcanizing agent as sulfur content and 40W 150pts.wt. of carbon black to 100pts.wt. of that for which 20W95pts.wt. of polybutadiene polymer with a content of 1,2-structure at 75wt% or more and a crystallinity at 15W75% and 5W80pts.wt. of rubber like natural rubber are blended. It is then provided inside both sides 3 or on the inside covering from both the sides to a shoulder part. Bend resistance is improved by specifying characteristic and compounding ratio of butadiene polymer, and a satisfactory reinforcing effect is obtainable through forming the tire semicircularly in section under regulating the weight, thus improving runing performance at puncture. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S54112104-A (JP)
Title: Superposition system for supervisory signal
Inventor: SUGA MUNA
IPC: H04B10/524
Filed: 1978-02-23
Abstract: PURPOSE:To make optical fiber for transmission in one by mixing a main transmission signal such as a PCM or other pulse signal and a low-frequency signal for supervisory prearrangement in a light digital transmission line without using a complex circuit. CONSTITUTION:At the transmission side of a light digital transmission line, electrophoto converter 1 for a main signal and electrophoto converter 2 for a supervisory prearrangement signal are driven separately to convert the main signal and low- frequency signal for supervisory prearrangement into photo signals, which are mixed by optical composition circuit 3 to superpose mutually the main signal and supervisory signal before transmitting via optical fiber transmission line 4 to the reception side. Then, photo receiver 11 at the reception side converts photo signals into electric signals, HPF13 removes the supervisory signal, and discriminative regenerating circuit 14 outputs the main signal, so that BPF15 will extract the supervisory prearrangement signal. At the time when the supervisory prearrangement signal is converted into a photo signal in this constitution, a fixed bias is applied to the low- frequency signal to prevent the minimum level of the low-frequency signal from becoming negative.
Patent JP-H05218600-A (JP)
Title: Printed-wiring board
Inventor: HASEGAWA KIYOHISA
IPC: H05K3/00
Filed: 1992-02-04
Abstract: PURPOSE:To shorten time needed for clearing up cause of the production of a defective printed-wiring board, when printed-wiring boards are made out of multiunit boards. CONSTITUTION:The same multiple printed-wiring boards 2 are formed on a multiunit board 1. Each printed-wiring board 2 has an address symbol 3 which shows its located position or address on the multiunit board 1.
Patent JP-S59143978-A (JP)
Title: Radar transmitter
Inventor: NAGAO NOBUAKI
IPC: G01S7/36
Filed: 1983-02-08
Abstract: PURPOSE:To hamper electronic jamming by changing the variation cycle of an oscillation frequency at random. CONSTITUTION:A random signal of a random signal generation circuit 5 is aplied to a sample hold circuit 6 and sampled at a specified time by a timing signal from a timing circuit 7. Output of the sample hold circuit 6 is converted into a sine wave signal with the amplitude varying at random at each specified period by a servo amplifier 3 and a tuning mechanism 2 changes the oscillation frequency of a magnetron 1 at the speed proportional to the amplitude value of a signal from the servo amplifier 3. The variation cycle of the oscillation frequency of the magnetron 1 changes at random at a fixed periodical interval. This makes the projection of the oscillation frequency very hard to do thereby enabling the construction of a radar transmitter hampering electronic jamming.
Patent JP-2000221737-A (JP)
Title: Image forming device having function to detect toner mark
Inventor: AZUMA TOSHIKAZU
IPC: H04N1/50
Filed: 1999-01-27
Abstract: PROBLEM TO BE SOLVED: To accurately detect the position of a toner mark on a transfer material without influenced by variance in the thickness or fluctuation of the position on the transfer material by detecting the distance from a detecting means to the transfer material and the distance from the detecting means to the toner mark and judging the position of the toner mark from the difference in these distances. SOLUTION: The figure shows a toner mark as the object for detection formed on a transfer belt and shows the changes in the sensor output when the toner mark is detected. The broken line in the curved line represents the output waveform of one distance detection sensor (PSD) detecting the transfer belt in the period when the other PSD detects the toner mark. The position of the toner mark is controlled by using the K color as the reference to detect the misalignment of each of Y, M and C and correcting the misalignment. The figure shows the overlapped state of marks K and Y, and the misalignment in the image is represented by (A), which responds to (B) in the output wave. The variance ΔV0 of the sensor output corresponds to the toner layer thickness of K so that this detection error component is removed.
Patent JP-S55111171-A (JP)
Title: Field-effect semiconductor device
Inventor: FUKUNAGA SHINOBU
IPC: H01L21/8238
Filed: 1979-02-20
Abstract: PURPOSE: To prevent breakdown in a substrate and enable high-speed action, by providing a region of high impurity concentration in the substrate between a source and a drain.  
     CONSTITUTION: A p + -type impurity implanted layer 14 of higher impurity concentration than a p-type substrate 1 is provided on a main face of the substrate. A p-type epitaxially grown film 15, which has a prescribed shape and a low impurity concentration, is provided on the layer 14. A source and a drain regions 2, 3 are made of the n + -type. An FET is thus manufactured. The p + -type impurity implanted layer 14 provided on a region, which is located in the substrate 1 between the n + -type source region 2 and the n + -type drain region 3 and in which in-substrate breakdown in likely to occur, prevents the breakdown. As a result, the impurity concentration of the p-type epitaxial layer 15 and the p-type substrate 1 can be reduced to decrease the capacitance of a junction with the n + -type source or the like to enable high-speed action. Even if a complementary FET as shown in Fig. is used, breakdown prevention and high-speed action can be effected. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H09191125-A (JP)
Title: Optical transmitting/receiving module
Inventor: KUHARA MIKI
IPC: H04B10/50
Filed: 1996-01-09
Abstract: PROBLEM TO BE SOLVED: To provide a small and inexpensive optical transmitting/receiving module by disposing a laser emitting a light of λ1 and an element receiving a light of λ2 on a same optical axis such that the laser is closer to a fiber than the light receiving element. SOLUTION: A semiconductor laser 70 disposed proximately to the end face of an optical fiber 62 comprises an InP substrate, an active layer (light emitting part) 72, and an epitaxial layer, e.g. an InP clad layer 73 (including a cap layer) and it is stimulated to emit light of λ when a current is injected from a p- electrode 75 toward an n-electrode 74. When a film reflecting the light of λ1 perfectly is provided on the back face of the laser 70, the light of λ1 is not emitted from the rear edge of laser and only the light of λ2 arrives at a light receiving element 85 comprising an InP substrate 86, an InGaAs light receiving layer 87, and annular p-electrode 88 and n-electrode 89.  When a 1.3μm LD(λ1 ) and a 1.55μm PD(λ2 ) are arranged sequentially, a module transmitting a signal with 1.3μm pm and receiving a signal with 1.55μm can be realized without requiring any wavelength demultiplexer.
Patent JP-S56136182-A (JP)
Title: Manufacture of dc high voltage generating device
Inventor: HISHIJIYOU HIDEO
IPC: H02M7/10
Filed: 1981-02-12
Abstract: PURPOSE:To improve stability and reliability, by constituting a DC high voltage generating circuit block in such a manner that capacitors equipped with electrodes on the both planes are placed in layers on the both sides of a rectifier and are joined electrically. CONSTITUTION:The part of a high voltage output lead wire 34 which is to be inserted in a soldering jig 33 is provided with coating of soldering cream and put into a frame 31 through a slit of the frame 31 on the left side of the soldering jig 33, and a rectifier D5 is arranged. And then, a capacitor C3, which is provided with electrodes on the both planes, is put in. A rectifier D4 is arranged on this, the lead wire is put into a frame 32 on the right side, and a capacitor C5 is put into this. And then, diodes D3, D2 and D1 and capacitors C2, C4 and C1 are arranged in turn, and after an input terminal 41 and a grounding terminal 38 are installed, molding is done by using resin.
Patent JP-S60163739-A (JP)
Title: Method of reducing insulation in at feeding type substation
Inventor: ARAI KOUICHI
IPC: B60M3/00
Filed: 1984-02-07
Abstract: PURPOSE:To reduce the insulating intensity of electric installation on the feeding side in a substation by providing a neutral on a feeding side winding using a three-winding transformer and inserting a reactor between said neutral and a rail, in an AT (autotransformer) feeding type transformer for feeding. CONSTITUTION:An AT feeding type substation feeds a voltage, obtained by dividing a feeding voltage generated in its feeding transformer Tr by means of an autotransformer AT, between a trolley line T and a rail R. In this case, a three-winding transformer is used as the feeding transformer Tr, a neutral is provided on a feeding side winding, and a reactor, with which a short-circuit device (e.g., a bypass gap G) is provided in parallel, is inserted between the neutral and the rail R. Thereby, an electri-car current, which flows into the neutral of the transformer Tr is restrained, while the insulating intensity of a feeding side electric installation in the substation is reduced.
Patent JP-S55113366-A (JP)
Title: High dielectric breakdown voltage semiconductor device
Inventor: SUGA TAKASHI
IPC: H01L29/861
Filed: 1979-02-21
Abstract: PURPOSE: To enlarge the extension of space charge layer and improve the inverse direction characteristic of a semiconductor device by a method wherein plural small circular domains having negative direction conductance are arranged to crowd around the similar negative conduction type domain prepared in a positive conduction type semiconductor substrate.  
     CONSTITUTION: A P-type layer 1 is made to grow up on a semiconductor substrate 2, and an N + -type domain 3 is formed in a portion of it by diffusion to form a PN junction 4 between the layer 1 and the domain 3. In a selective diffusion type semicondcutor device produced in this way, plural small circular diffusion layer stakes are added around the domain 3, independently separated from each other and interspersed. Namely many N + -type diffusion layer stakes 5 are formed in one line or a few lines in the layer 1, independently separated from each other and from the junction 4, but located within the range of distance where the extended space charge layer exists which is produced in accordance with the specific resistance of layer 1 and the applied reverse voltage. Accordingly, the space charge layers produced between those stakes 5 are made to extend by the stakes 5 located at both sides, and make up an ideally high voltage resistant semiconductor device. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H04259726-A (JP)
Title: Impregnated-type cathode
Inventor: AKIYAMA YASUHIRO
IPC: H01J9/04
Filed: 1991-02-13
Abstract: PURPOSE:To prevent cracking of welded parts to prevent an electron-emitting material from leaking, obtain stable electron-emitting characteristics, impregnate a substrate metal with the electron-emitting material previously, and shorten the activation time remarkably by welding same shape parts of the same material. CONSTITUTION:The cross section shape of a disk-like porous W substrate metal 1 made of a porous high melting point metal is an extruded shape and a cathode sleeve 2 made of either Ta or Mo-Re is brazed to the outside of the larger one of the outer diameters of the porous W substrate metal 1 and the cathode sleeve 2 and a heater sleeve 6 are sealed.
Patent JP-H11211094-A (JP)
Title: Cooking utensil
Inventor: KOYAIZU MASATOSHI
IPC: F24C3/12
Filed: 1998-01-30
Abstract: PROBLEM TO BE SOLVED: To easily repair and inspect a combustion monitoring sensor and an ignition device by forming a flame hole going path and a flame hole returning path consisting of a group of flame holes at a gas burner and shifting flame from the flame hole at the downstream edge of the flame hole going path to the flame hole at the upstream edge of the flame hole returning path. SOLUTION: A group of flame holes 28 that are opened toward first and second heating plates 27a and 27b are arranged at first and second burner pipes 210 and 211 at an interval for shifting fire in a line. Then, the line of the flame hole formed in the first burner pipe 210 is set to a flame hole going path and the line of the flame hole 28 formed in the other second burner pipe 211 is set to a flame hole returning path. In this manner, gas sprayed from the flame hole 28 of the first and second burner pipes 210 and 211 to the lower surface of the ceiling plate of a fire-shifting box 29 is diffused along the lower surface and is mixed together, thus shifting fire from the flame hole 28 at the downstream edge of the flame hole going path to the flame hole 28 at the upstream edge of the flame hole returning path.
Patent JP-2000222409-A (JP)
Title: Method for aiding maintenance of data base
Inventor: TATSUO SHINYA
IPC: G06F17/30
Filed: 1999-01-28
Abstract: PROBLEM TO BE SOLVED: To determine the maintenance priority of records based on the importance of data items in the maintenance of a data base in which the data of a part of plural data items constituting a record are registered without setting up them. SOLUTION: In the maintenance aiding method, an item weight table 90 sets up the importance of maintenance of respective item sorts to be maintained out of items registered in a commodity table 50 and a commodity keyword table 60 constituting a master data base. A maintenance priority setting program 133 in a maintenance operator's computer 10 refers to the table 90, retrieves both the tables 50, 60, extracts a record having a data item whose data are not set up yet, and determines the priority of maintenance of records in accordance with the importance of data items.
Patent JP-S58139820-A (JP)
Title: Fuel tank
Inventor: SHIBAMOTO YUTAKA
IPC: B60K15/077
Filed: 1982-02-12
Abstract: PURPOSE:To prevent an inflow of fuel into an evaporating tube resulting from biasing of the fuel by simple construction, by providing a switching valve provided with a weight at a leading opening of an evaorating tube, in a fuel tank for a vehicle. CONSTITUTION:Because the relative oscillation of a weight 13 to a leading opening 12 of an evaporating tube 10 is not generated while a vehicle is being suspended or run on level ground, a leading opening 12 is released by valve plugs 15a and 15b of a valve 14. Evaporated gas, therefore, is discharged from the leading opening 12 through the evaporating tube 10. In a turning time of a vehicle, the weight 13 is oscillated through turning inertial force when fuel in a tank is deflected. Simultaneously with the oscillation of the weight 13 the valve plugs 15a and 15b are turned and the leading opening 12 is closed. Then, the fuel does not flow in the evaporating tube. Irrespective of continuation of the fuel deflection, prevention of fuel inflow can be maintained as the weight 13 is kept at an oscillation position.
Patent JP-H02202006-A (JP)
Title: Air-core type laminated inductor
Inventor: ISHIKAWA MASAHIRO
IPC: H01F17/00
Filed: 1989-01-31
Abstract: PURPOSE:To contrive reduction in number of processes by a method wherein a plurality of insulating layers, on which a notched window is penetratingly provided, and a plurality of conductors in the length corresponding to the 3/4 wound length or longer of the winding per layer, are laminated alternately. CONSTITUTION:A first eddy conductor 21 having the length per layer, which is 3/4 wound length of a coil, is laminated on the fringe of an insulating layer 1-1, a thin insulating layer 1-2, on which notched windows 5 are penetratingly provided in such a manner that the terminal b1 of a conductor 2-1 is made to expose, is laminated on the conductor 2-1. Besides, a spiral conductor 2-2 of 3/4 winding length having the starting ends a2 superposed in longitudinal direction with each other in the notched windows 5 where the terminals b1 of the lower layer conductor 2-1 are exposed, is superposed on the insulating layer 1-2. At this point, insulating layers 1-3 and 1-4 are alternately laminated on conductors 2-3 and 2-4, and lastly, an insulating layer 1-5, which is a little thicker than the above-mentioned layers, is superpositionary laminated. As a result, the number of lamination is lessened, repetition of superposition and drying processes are reduced, and the processes of manufacture can be sharply reduced.