baber/WOPTO huggingface dataset:
Patent JP-H04257231-A (JP)
Title: Manufacture of mos type transistor
Inventor: MOMOTA SEIJI
IPC: H01L21/336
Filed: 1991-02-12
Abstract: PURPOSE:To solve a problem of a difficulty of preventing a latchup by shortening a length of a source region since an interlayer insulating film between a gate electrode and an emitter layer is extended from an end of the gate electrode on a substrate to reduce a resistance directly thereunder. CONSTITUTION:After a polycrystalline silicon layer formed with a gate electrode and an interlayer insulating film thereon are formed in the same pattern, with the insulating film as a mask a polycrystalline silicon layer is overetched thereby to retract the end of the electrode from the end of the insulating film. Thereafter, when an impurity is implanted and diffused to form a source region with the gate electrode as a mask, the source region shorter than that of prior art can be formed, and an insulation of an emitter electrode and the gate electrode in contact with the emitter electrode can be obtained.
Patent JP-H06198344-A (JP)
Title: Driving shaft connecting device for cold roll forming machine
Inventor: MATSUMOTO SHIYOUICHI
IPC: F16F15/06
Filed: 1993-01-08
Abstract: PURPOSE:To complete connection of a sub base with a roll shaft at one time by sliding the sub base on a common base regardless of distance between upper and lower roll shafts and when plural roll stands are mounted on the sub base. CONSTITUTION:Plural couplings 20 arranged on the same plane as an intermediate stand 14 mounted on the sub base 10 are arranged with an outputting shaft 7. Even when the distance between the upper and lower shafts 12 and 12 is changed, the positions of couplings 20 of the intermediate stand 14 are not affected since the stand 14 is relaxedly supported by the couplings 20 in the horizontal and vertical diameter direction with a spring 16. Even when each position is deviated a little when they are engaged with each other, many couplings 20 and the outputting shaft are engaged at one time since the center line is automatically adjusted. When they are engaged with each other, after an inlet guide 23 and a spline guide 8 are preliminarily engaged, a spline bearing 21 of couplings 20 and the outputting shaft 7 are engaged and a spline groove on main body 22 side is not damaged when the center line is automatically adjusted.
Patent JP-H01192343-A (JP)
Title: Method for displaying mr picture
Inventor: KONO KAZUHIRO
IPC: A61B10/00
Filed: 1988-01-27
Abstract: PURPOSE:To remove or reduce a noise and an artifact by setting a gray level (gradation) corresponding to an MR value by a small proportion grade (alpha) at an area (W) where the signal is small and a noise and an artifact only exist out of the MR values. CONSTITUTION:A linear gray scale used many times more than the conventional one is shown by L and the gray scale improved by a present invention or a concentration value setting example is shown by R. As the range in which the artifact due to the background noise and the action of the subject to exist at a background, exists, a constant range W is set before and after the MR value is zero, the inclination of the gray scale is made smaller (alpha) concerning the MR value only of the range, the change on the gray level is made smaller, and the noise is made harder to be prominent. Thus, in the MR picture shown by the MR value with a code due to an inverting restoring method (IR), the background noise can be removed or reduced and the picture quality is improved.
Patent JP-S52102902-A (JP)
Title: Boiler with dry type denitrator
Inventor: ISHIHARA TAKAO
IPC: F28F1/00
Filed: 1976-02-24
Abstract: PURPOSE: To coat the surface of one or more two pipes of a superheater, a reheater and an economizer with a denitrating metallic catalyst for reducing NOx and oxidizing HC without NOx and HC convertors. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H01197048-A (JP)
Title: Method for drying belt coating agent in belt type strip continuous casting machine
Inventor: YAMADA HIROSUKE
IPC: B22D11/06
Filed: 1988-01-30
Abstract: PURPOSE:To quickly and surely dry coating agent and to execute stable casting by coating the coating agent on the surface of belt-mold and further, high temp. medium, etc., at back face thereof and selecting the coating position so as to develop temp. gradient to dry them. CONSTITUTION:The suitable amount of coating agent is coated on the surface of the belt-mold 1 with a spraying device 2. Successively, on the back face at the downstream position from this coating position, the high temp. medium is sprayed to develop the temp. gradient in the range from this supplying position to the coating position of the coating agent. At this time, the coating agent is gradually heated and dried during interval till it is brought into contact with the molten steel. Then, the high temp. medium is desirable to supply at about 75-90 deg.C to the mold and about 20-40l/min flowing rate. By this method, the coating agent is quickly and surely dried and the stable casting can be executed.
Patent JP-H07226825-A (JP)
Title: Color image reader
Inventor: ICHIKAWA YUICHI
IPC: G03F3/00
Filed: 1994-02-15
Abstract: PURPOSE:To provide a color image reader which prevents the deterioration of a read image owing to the color aberration of an image-forming lens and which can highly precisely read a color image. CONSTITUTION:For image-forming the color image 3 on a light-receiving element 5 having plural one-dimensional image element strings 51-53 reading different color information in one chip through an image-forming lens 4 in parallel in the same plane so as to read them, a lens having a telecentric characteristic making ejected light main light beam to be parallel to an optical axis is used for the image-forming lens 4. The light-receiving element 5 is arranged by inclining it by a prescribed angle theta as against the optical axis of the lens 4 in accordance with the color aberration on the axis of the lens 4, and the arrangement of the read colors of the one-dimensional image element strings 51-53 on the lightreceiving element 5 is arranged in accordance with the color aberration of the axis of the lens 4. Thus, all the plural color component light beams are precisely focused on the one-dimensional image element strings 51-53 while the scale factor color aberration of the lens 4 is compensated.
Patent JP-S62176217-A (JP)
Title: Majority logic circuit
Inventor: HAMANO HISANORI
IPC: H03K19/23
Filed: 1986-01-29
Abstract: PURPOSE:To decide the logic value by majority by storing a potential representing a logic level of plural inputs in an independent capacitor respectively and allowing a comparator to discriminate the movement of electric charge by the capacitor division and its resulting potential. CONSTITUTION:Three inputs I1-I3 are inputted respectively to capacitors 2-1-2-3 via switching gates 1-1-1-3. Then the switching gates 1-1-1-3 are closed and switching gates 3-1, 3-2 are opened to distribute the electric charge stored in each capacitor thereby making the potential of each capacitance equal. The potential is compared with the threshold potential by the comparator 4 to take the majority. When the input number is increased, the increment of one input is coped with the increase in two switching gates and one capacitor and the circuit integration is attained with less number of elements.
Patent JP-S62254079-A (JP)
Inventor: DONARUDO SHII BAAKUNESU
IPC: G01R31/3185
Filed: 1987-01-30
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-S61177665-A (JP)
Title: Tracking servo method in magnetic recording and reproducing device
Inventor: NISHIDA SHUZO
IPC: H04N5/783
Filed: 1985-01-31
Abstract: PURPOSE:To make a circuit simple by dislocating and recording the position of the pilot signal in respective recording tracks successively, and obtaining the servo signal from the stroke part of the pilot signal from the recording track at both sides while the special recording track is traced. CONSTITUTION:The position is successively dislocated in the recording track and a pilot signal fp and a control signal fc are recorded at the magnetic tape. The reproducing signal inputted into a terminal 1 is inputted through an amplifier 2 to a BPF 3 and an LPF 14. The BPF 3 makes the signal fc pass and the LPF 14 makes the signal fp pass. The output, in which the envelope is detected 4, is supplied to a comparing circuit 5, the H level output is counted by timing signals T0 and T1 of a timer circuit 6, stored to a shift register 13 and the special track from the storing contents is discriminated. The envelope-detected 15 signal fp is held to sample holding circuits 16 and 17 by the signals T0 and T1 and the servo signal is formed by a difference signal output 18. Thus, the servo circuit can be made simple.
Patent JP-S53103518-A (JP)
Title: Exciter of generator
Inventor: SHIMOMURA MASARU
IPC: H02P9/14
Filed: 1977-02-22
Abstract: PURPOSE: To limit an excessive energinzation by changing a predetermined voltage in the automatic voltage adjustor when the energizing current exceeds the predetermined value during phase-advanced operation of the generator. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S55111057-A (JP)
Title: High pressure sodium discharging device
Inventor: SAITOU NAOKI
IPC: H01J61/52
Filed: 1979-02-20
Abstract: PURPOSE: To suppress the missing of sodium without cracking the end of light emitting tube, by supplying inert gas in outer tube thereby cooling the light emitting tube.  
     CONSTITUTION: The light emitting tube 1 is made of polycrystal alumina while sodium, mercury and xenon are encapsulated in it. The outer tube 2 is made of glass. Cooling inert gas is supplied into the outer tube 2 by means of cooling device 4. Helium having higher thermal conductivity is more preferable than argon as said cooling inert gas, while hydrogen or nitrogen can be used depending on the conductor material of light emitting tube. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H05214441-A (JP)
Title: Production of steel plate for welded structure excellent in toughness at welded joint
Inventor: KOBAYASHI YOICHIRO
IPC: C22C38/00
Filed: 1992-02-04
Abstract: PURPOSE:To produce a steel plate having superior toughness not only in the vicinity of a weld line but also in a heat affected zone slightly apart from the weld line in large heat input welding. CONSTITUTION:A slab of a steel which has a composition containing 0.02-0.20% C, 0.05-0.50% Si, 0.50-2.00% Mn, <=0.010% Al, 0.009-0.030% Ti, 0.0015-0.0100% O, and 0.0040-0.0065% N and satisfying inequality 1.5N<=Ti-2O<=3.5N is heated and rolled by the ordinary method. Further, one or >=2 kinds selected from 0.05-1.00% Cu, 0.05-1.00% Ni, 0.05-1.00% Cr, 0.03-0.50% Mo, 0.005-0.050% Nb, 0.005-0.100% V, and 0.0005-0.0030% B are added, if necessary.
Patent JP-S57134692-A (JP)
Title: Radiator of oil-filled transformer group
Inventor: FUKUMOTO KATSUSABUROU
IPC: F28F3/04
Filed: 1981-02-12
Abstract: PURPOSE:To improve the cooling efficiency of the radiator gy a method wherein steel sheets, which compose of the portion of cavity parts, are formed in the form of bellows-like folds and said steel sheets are opposed to each other with the fixed gap therebetween in order to increase the radiating area. CONSTITUTION:A radiator element 1 composes of two same steel sheets opposedly lain one upon the other as radiator plates 2a and 2b, the circumferential parts 3 of which are jointed by seam-welding 7 with each other and the intermediate parts of the radiating surface of which are jointed by spot-welding 8 in longitudinal direction with the fixed intervals. The cavity parts 5 are formed between the spot-welded intermediate parts 4. Concretely, the steel sheets composing of the cavity parts are formed in the form of bellows-like folds by drawing or the like and the radiator element 1 is formed by opposing said bellows- like folded sheets to each other with the fixed gap a, resulting in increasing the radiating area and in improving the cooling efficiency of the radiator.
Patent JP-S53105644-A (JP)
Title: Drain contro system for turbine plant
Inventor: OOMORI TAKU
IPC: F01K7/00
Filed: 1977-02-25
Abstract: PURPOSE: To prevent a bnormal water level rise due to flash evaporation at the time of decreasing turbine load by measures of adding a means of giving condensate or feed water from part of condensate and feed water systems to a drain tank making it possible to maintain drain tank water in unsaturated dondition. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S60162974-A (JP)
Title: Ultrasonic wave generating element
Inventor: SEGAWA YOSHIKAZU
IPC: G10K15/00
Filed: 1984-02-03
Abstract: PURPOSE:To output a narrow-width, less ringing ultrasonic wave pulse and to measure precisely even at a short distance by providing plural electro-mechanical transducing elements for an ultrasonic wave pulse reflecting means, and radiating an acoustic wave. CONSTITUTION:A delay material 6 is interposed between piezoelectric elements 1 and 5 of an electro-mechanical transducing element. This delay material 6 makes outputs of the piezoelectric elements 1 and 5 opposite in phase. Electrodes 2 are provided on both surfaces of the piezoelectric elements 1 and 5 respectively. A protecting material 3 is provided on the electrode surface on an ultrasonic-wave radiation side and a packing material 4 is provided at the opposite side. Then, an impulse voltage is applied to the electrodes 2 and ultrasonic wave pulse are radiated from the piezoelectric elements 1 and 4 to an object as shown by an arrow. The acoustic wave pulse to the object is an intense single-shot pulse with narrow pulse width because the outputs of the piezoelectric elements 1 and 5 overlap each other and starting oscillations of the piezoelectric elements are given with priority while remaining oscillations cancel each other. Therefore the oscillations of the ultrasonic wave element become narrower in width and the ringing is reduced, so that a measurement is taken precisely even at a short distance.
Patent JP-S55112884-A (JP)
Title: Closed-type motor pump for boiler water circulation
Inventor: TAGUCHI HIROAKI
IPC: F22D7/08
Filed: 1979-02-21
Abstract: PURPOSE: To permit continuation of a pumping operation by arranging a flow amount detector for detecting the flow of secondary cooling water and a temperature detector for detecting the temperature in the motor casing and allowing an emergency water feeding valve or an emergency discharge valve to open in accordance  with an abnormal signal transmitted from either of the detectors.  
     CONSTITUTION: In a motor casing 2, primary cooling water is filled, and a motor is cooled by said cooling water. A controlling apparatus 11 is connected with a secondary cooling water flow rate detector 6 and a temperature detector 7 on the input side and connected with a water feeding valve 8 and a discharge valve 10 on the output side. When the secondary cooling water flow rate detector 6 detects a flow rate above a predetermined value or the temperature detector 7 detects a temperature above a predetermined value, the emergency water feeding valve 8 and the emergency discharge valve 10 are opened, and the cooling water from the emergency cooling water source 9 flows through the motor casing 2, and even if the primary cooling water leaks, pump operation can be continued, and the place of leak of the primary cooling water can be repaired. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H09198966-A (JP)
Title: Limit switch
Inventor: KISHI SHIGENOBU
IPC: H01H3/16
Filed: 1996-01-11
Abstract: PROBLEM TO BE SOLVED: To resolve the defective contact of contact point portions and the defective operation caused by the corrosion of components and improve long- term contact reliability by providing a permanent magnet, magnetic plates, and a moving member set to the operational state when an actuator is operated. SOLUTION: The center section of a permanent magnet 16 is fixed to a rotary shaft 15 provided at the upper section in a case 1. The magnet 16 is inserted between a pair of magnetic plates 13, 13, the protruded section of the shaft 15 to the outside of the case 1 is connected to the output side of a gear mechanism 17. The base section of an actuator 18 is fixed to the input side of the gear mechanism 17. The gear mechanism 17 sets the magnet 16 to the erect state via the shaft 15 when the actuator 18 is kept at the erect state. When the actuator 18 is inclined by the prescribed angle for operation, the magnet 16 is set to the attitude perpendicular to the magnetic plates 13, 13 from the erect state via the shaft 15, then the magnetic plates 13, 13 are magnetized.  A switch section A is turned on or off via the moving member 8, a normally closed terminal 5, a normally opened terminal 6, and a moving piece 10. Since the switch section A is magnetically operated, long-term contact reliability can be improved.
Patent JP-H11220398-A (JP)
Title: Current addition type da converter
Inventor: KATADA TOMOYUKI
IPC: H03M1/74
Filed: 1998-01-30
Abstract: PROBLEM TO BE SOLVED: To suppress deterioration in the precision of DA(digital-to-analog) conversion by reducing noises at the time of varying a conversion digital input value. SOLUTION: A bias voltage generation part 1 converts a conversion digital input value Din3 by a decoder 24, and varies a current from a constant current source 11 and the number of the constant current source 11 for bias for a bias switch part 13. The variation is supplied to a DA conversion part 2 in the form of a bias voltage Vb. Therefor, an output switch becomes unnecessary to reduce noises at the time of varying the conversion digital input value, thereby reducing the precision deterioration of the DA converter.
Patent JP-S56115966-A (JP)
Title: Infrared follower
Inventor: WAKABAYASHI SATOSHI
IPC: G05D1/12
Filed: 1980-02-19
Abstract: PURPOSE:To obtain an accurate follow signal by averaging the rosette pattern coordinate signals generated when the instantaneous view crosses a target in the frame time. CONSTITUTION:When a target enters the view of the rosette follower, the radiant light from the target made incident on an irdome 1 is reflected by the primary and secondary mirrors 2 and 3, allowed to permeate through a wedge 4 and converged on a detector 5. The output of the detector 5 is passed through an amplifier 8 and an automatic gain controller 9 before being pulse-shaped by a pulse-shaping device 10. With the coordinate signals equivalent to the direction cosine of the instantaneous view of the detector 5 being generated by ROMs 14a, 14b, 15a and 15b, the coordinate signals generated when the target is caught in the instantaneous view are drawn out and averaged in the frame time to obtain a follow signal.
Patent JP-S62179132-A (JP)
Title: Manufacture of semiconductor device
Inventor: SAWAMUKAI SHIGEYUKI
IPC: H01L21/768
Filed: 1986-01-31
Abstract: PURPOSE:To control the regrowth of Si in a junction part between a poly Si pattern and an alloy layer as well as to favorably maintain the characteristics of the rest junction part by implanting Si ions in the former junction part. CONSTITUTION:As Si ions are implanted only into the junction part between a poly Si wiring layer 25 and an alloy layer 30, the Si content in the alloy layer 30 is increased and the formation of the poly Si wiring layer 25 and an alloy layer 30 into an alloy, which proceeds after heat-treating, that is, the regrowth of Si in the junction part is controlled. In addition, as the rest junction part is covered with a resist 32 and Si ions are not implanted into it, the Si content in the alloy layer can be held intact and the element characteristics of the contact forming part are not damaged.
Patent JP-H05189496-A (JP)
Title: Cad system
Inventor: NISHIOKA SUSUMU
IPC: G06F17/50
Filed: 1992-01-08
Abstract: PURPOSE:To provide the CAD system with convenient functions by inputting and correcting check data while separating a check drawing for each item at its display. CONSTITUTION:The system consists of a design drawing definition section 1, check drawing definition sections 5-7, and the corresponding related formula definition sections 2-4 and a relational expression definition section 8. A design drawing A, check drawings B and C are displayed on the display screen. In the design drawing A, the dimension line for parametric specification is inserted to designate variables a1-a3, b, and c and real number values. The check drawings B and C consists of the drawing the same as or simplifying the design drawing A. The check drawing B is used, for example, for inputting and correcting the name of variables A and B of the specification for a customer. The check drawing C is used for inputting and correcting the name of variable 'x' of the process rule.
Patent JP-H04257906-A (JP)
Title: Constant current circuit
Inventor: SUGAWARA MITSUTOSHI
IPC: G05F3/26
Filed: 1991-02-13
Abstract: PURPOSE:To completely prevent a current from flowing in the case of the stop and further to prevent current accuracy from getting worse in the case of the use by turning on/off a switching transistor provided serially to a connecting means. CONSTITUTION:When the potential of a control terminal 3 is low, an NMOS transistor Q11 for switching is turned off and an NMOS transistor Q12 is turned on. As the result, an NPN transistor Q1 is operated as a diode short-circuiting the collector and the base, and a current mirror circuit is formed. When the potential of the control terminal 3 is high, the Q12, is turned off and the Q11 is turned on. Therefore, since no bias is impressed to the bases of NPN transistors Q1-Q3, those transistors are turned off, and the operation of a using circuit 1 is stopped. Since the Q1 is turned off at such a time, no current flows to a resistor R1. On the other hand, when an inverter 11 is manufactured with CMOS constitution, current consumption at the inverter 11 is zero as well.
Patent JP-H08188388-A (JP)
Title: Winch device
Inventor: KAWABATA HARUISA
IPC: B66D1/30
Filed: 1995-01-11
Abstract: PURPOSE: To carry out the operation of a winch smoothly, as well as to eliminate the interference of a linear body for winding and delivery so as to prevent a damage of the linear body, and furthermore, to simplify the operation system by housing a tensioner pulley in the winch device. CONSTITUTION: The winding drum surface of a drum 2 to wind the rope 11 of a winch device 1 is divided into two parts by a partition wall. A tensioner pulley 5 energized downward is installed at the lower side of the drum 2, and a motor 10 with a reduction gear to rotate the drum 2 is provided to the side surface of the drum 2. The rope 11 is wound on two winding drum surfaces of the drum 2 while its tensile force is being regulated by the tensioner pulley 5, and it is extended therefrom to the outer side of the device, and supports a loading article 12, being made in an endless form.
Patent JP-H06215809-A (JP)
Title: Multi-stage connector
Inventor: HIOKI KOSUKE
IPC: H01R13/514
Filed: 1993-01-12
Abstract: PURPOSE:To increase the number of connections and assure unreleasing connections in a connector having pressure contact/connection sections. CONSTITUTION:Pressure contact/connection sections consisting of U-groove pressure contact terminals 4...., 5..., 6... on the upper face of a connector main body 1 are formed into a multiple-step shape. Many electric wires A..., A'... are connected in pressure contact into a multi-step shape by pressing plates 2, 3 holding the electric wires A, A' in pressure contact with step faces 7, 8 of the connector main body 1 and comb-like electric wire aligning/holding sections 9, 11, 12, 23, 24 provided to sandwich from above and below on both the connector main body 1 and the pressing plates 2, 3.