baber/WOPTO huggingface dataset:
Patent JP-H11135765-A (JP)
Title: Solid-state image-pickup device and manufacture thereof
Inventor: NISHI NAOKI
IPC: H01L27/148
Filed: 1997-10-31
Abstract: PROBLEM TO BE SOLVED: To provide a solid-state image-pickup device which, without deteriorating the characteristics, comparatively simply reduces the smear due to light multiply reflected in the gap between a light-proof metal film and substrate surface. SOLUTION: The image-pickup device comprises a light-receiving charge storage 1 having an opening which is sectioned by a light-proof material 6 for converting a light received at the opening into a signal charge to be stored therein and a charge transfer part 2 for reading and transferring the signal charges stored in the storage 1 with the application of voltages to first transfer electrodes 3 for reading the signal charges from the storage 1 and to second transfer electrodes 4 which is not used for the reading. A distance d2 between the second transfer electrode 4 and an opening is greater than d1 between the first transfer electrode 3 and the opening.
Patent JP-H07220923-A (JP)
Title: Compound magnetic substrate and its manufacture
Inventor: EDA KAZUO
IPC: G11B5/738
Filed: 1994-12-05
Abstract: PURPOSE:To obtain thermally, mechanically and chemically stable one having a higher degree of freedom of substrate combination and capable of high precision fine processing by providing a magnetic substrate and a holding substrate directly bonded to the magnetic substrate by at least one of binding method by hydrogen binding and covalent binding method. CONSTITUTION:A composite magnetic substrate 202 has the holding substrate 1 and a magnetic substrate 2. The holding substrate 1 and the magnetic substrate 2 are jointed by direct bonding. Here, the bonding formed by hydrogen bonding or covalent binding without using an adhesive is called the 'direct bonding'. Thickness of bonding interface between the magnetic substrate 2 and the holding substrate 1 directly bonded is less than 20mm. Materials for magnetic substrate 2 are garnet or yttrium-iron-garnet as principal components. Also, the material of the holding substrate 1 is silicon as semiconductor or a III-V group semiconductor material.
Patent JP-H06197877-A (JP)
Title: Bioelectric signal extracting device
Inventor: TAKEUCHI YASUTO
IPC: A61B5/308
Filed: 1992-11-11
Abstract: PURPOSE:To simplify the arrangement of circuitry by using an amplifier having d.c. and a.c. gains which are specified, as an ECG amplifier of receiving a bioelectric signal from each of joint electrodes. CONSTITUTION:A bioelectric signal from a joint electrode ELi (i=1 to 6) is introduced into an amplifier circuit, and high frequency range components are removed from the signal by a low pass filter composed of a resistor R1 and a capacitor C1. Then it is delivered to a positive input terminal of an amplifier Ai. As to its d.c. component the circuit is equivalent to that from which a resistor R3, a capacitor C2 and a resistor R4 are removed, due to the provision of the capacitor C2, and accordingly, it serves as a buffer having a gain of 1. Meanwhile, as to an a.c. signal, the gain of the amplifier is exhibited by (R2+R11)/R11 where R11 is an impedance given by the resistor R3, the capacitor C2 and the resistor R4, and R2 is a feed-back resistor, that is, it becomes about 50 times. Accordingly, a polarizing potential which functions as a d.c. offset, does not affect the resolution of a downstream A/D converter, appreciably, thereby it is possible to eliminate the necessity of multi-bits type.
Patent JP-H01144387-A (JP)
Title: Driving circuit of brushless motor
Inventor: MIYASAKA KATSUMI
IPC: H02P6/06
Filed: 1987-11-28
Abstract: PURPOSE:To drive efficiently by placing a saturation reducing means to reduce the saturation voltage of an output transistor between input and output transistors. CONSTITUTION:A driving circuit (one phase portion) of a brushless motor is such that a base of an input transistor(Tr1) is connected to an input terminal A through a diode D3, and at the same time, a base of a Tr2 is connected. Diodes D1-D2 connected in series are connected between emitters of the Tr1-Tr2, and resistors R1-R2 are connected respectively to both ends of it to constitute the saturation reducing means S. One end of the driving coil 1 is connected to an output terminal B at a connection mid-point of diodes D1-D2. A base of a Tr3 to a collector of the Tr1, a base of an output Tr4 to a collector of the Tr3, and a base of an output Tr5 is connected to a collector of the Tr2 respectively. Accordingly, the lower side of an input waveform cancels a portion of the voltage between base emitters of the Tr2 at an (a) point potential of the diode D1.
Patent JP-H08155593-A (JP)
Title: Method for continuously casting thin cast slab and immersion nozzle for continuous casting
Inventor: MURAKAMI HIDEKI
IPC: B22D41/50
Filed: 1994-12-06
Abstract: PURPOSE: To prevent the entrapment or scum into a cast slab by using an immersion nozzle having slit-type discharging holes in the side surface at the lower end part, enlarging discharging quantity of molten metal at the center part and smoothening the flow of scum to side weirs, at the time of continuously casting a thin cast slab by using a shifting mold. CONSTITUTION: As the immersion nozzle used to the shifting mold 3, the nozzle 6 having the slit-type discharging holes 5 for molten metal 7 in both side surfaces at the lower end part is used. At the time of continuously casting the thin cast slab 9, when the molten metal 7 discharges to the long wall sides of the shifting mold 3 from this immersion nozzle 6, the mass flow rate per unit cross sectional area near the molten metal surface is enlarged at the center part of the nozzle 6 and the scum floated up on the molten metal surface is approached to the side weir 2a, 2b sides and discharged.  Then, in the slit-type discharging holes 5 in both side surfaces at the lower end part of this immersion nozzle 6, the discharging hole 5c at the center part is directed to the upper part than the discharging holes 5s at both side parts and formed at the upper part and also, formed to the upper part and further, it is desirable to take such means as to enlarge the cross sectional area of the discharging hole at the center part to have larger than the cross sectional area of the discharging hole at both side parts.
Patent JP-H01143358-A (JP)
Title: Manufacture of mos semiconductor integrated circuit device
Inventor: MURAO YUKINOBU
IPC: H01L21/265
Filed: 1987-11-30
Abstract: PURPOSE:To form a diffused layer in which concentration is varied in a region under a sidewall by forming a gate electrode, then forming the sidewalls inclined at its surface at the side of the electrode, and ion implanting reverse conductivity type impurity to that of the substrate to the substrate with the sidewalls as masks. CONSTITUTION:A gate silicon oxide film 2 having 400Angstrom  of thickness is formed on a semiconductor substrate 1. Then, a gate electrode 3 made of a polycrystalline silicon film having 5000Angstrom  of thickness is formed. Thereafter, the whole surface is covered with a silicon oxide film 4 having 5000Angstrom  of thickness by bias sputtering. A taper 5 is formed on the surface of the film 4 at the step of the electrode 3 of the base. Then, the film 4 is etched by anisotropic dry etching, and a sidewall 6 remains. Subsequently, arsenic ions are implanted to the substrate 1. The concentration gradient of implanting ions is formed on the lower substrate 1 of the sidewall 6 toward the channel direction of a transistor. Thus, the diffused layer 7 of this LDD structure is formed by one ion implanting step.
Patent JP-H11132805-A (JP)
Title: Electromagnetic flowmeter
Inventor: SHUKUTANI NORIHIRO
IPC: G01F1/60
Filed: 1997-11-04
Abstract: PROBLEM TO BE SOLVED: To provide an electromagnetic flowmeter that acquires a measurement voltage and an exciting current in synchronization with of a rectangular exciting current cycle as a group comprising a multiplexer and an analog/digital converting circuit. SOLUTION: An flowmeter comprises an exciting circuit 23 flows an rectangular exciting current If in an exciting coil, an amplifier impedance-converting a d-c voltage developed at a measurement electrode, a multiplexer 17 that inputs a measurement voltage VM that is output from the amplifier and a current signal VR proportionally to the exciting current If and then outputs alternatively, an analog/digital converting circuit 18 of an output of the multiplexer 17, an operational circuit 20 that operates a flow velocity V or flow rate of a measurement fluid using the measurement voltage and the current signal which are analog/digital-converted, a timing circuit 24 that outputs an alternatively selected output signal S5 by the multiplexer 17 and convert-timing signal S6.  Then, an operational signal of the operational circuit 20 is provided in synchronization with of the rectangular exciting current cycle by the timing circuit 24.
Patent JP-H03163723-A (JP)
Title: Circuit breaker
Inventor: HIRATA NOBORU
IPC: H01H77/10
Filed: 1989-11-22
Abstract: PURPOSE:To prevent the excessive rotation of a moving contact and surely return it to the original state by forming a hooking section on an end section brought into contact with the projection of the moving contact of a torsion coil spring for applying the contact pressure. CONSTITUTION:A recess 32 corresponding to a moving contact 22 of each phase is formed on a cross bar 21. A pin 34 is fitted between mating both pieces of a metal 33, and the coil section 35a of a torsion coil spring 35 for applying the contact pressure is wound on the pin 34. A nearly L-shaped hooking section 37 is folded and shaped apart from a pin 36 by the preset distance on the tip section of one of both end sections of the torsion coil spring 35 on the side in contact with the pin 36 of the moving contact 22 while the moving contact 22 is kept in contact with a fixed contact 26. Any excessive counterclockwise rotation of the moving contact 22 against the cross bar 21 is prevented by the pin 36 and the hooking section of the torsion coil spring 35.
Patent JP-H02148138-A (JP)
Title: Debugging information adding system
Inventor: KANAZAWA TAKESHI
IPC: G06F9/06
Filed: 1988-11-29
Abstract: PURPOSE:To correct a program in the level of original design information by adding names and row numbers of original parts before synthesis or the like as comment rows correspondingly to respective statements at the time of combining groups of skeletons, parts, peculiar processings, or the like to synthesize one program. CONSTITUTION:A program synthesizing part 3 successively takes out skeletons and parts, peculiar processings, or the like, which are called by these skeletons, from preliminarily generated groups of skeletons, parts, peculiar processings, or the like to synthesize statements in response to synthesis indication. A design information/parts/program correspondence table 4 is generated which corresponds to the synthesized program where names (ID) and row numbers of original skeletons, parts, peculiar processings, or the like before synthesis corresponding to rows of these synthesized statements are added as comment rows. Thus, comment rows are referred to perform correction in the level of original design information when the synthesized program is corrected at the time of debugging or the like.
Patent JP-H03163904-A (JP)
Title: Surface acoustic wave filter and communication equipment using same
Inventor: HIKINO OSAMU
IPC: H03H9/145
Filed: 1989-11-22
Abstract: PURPOSE:To suppress diffraction effect and to improve the frequency characteristic of an element by obtaining all desired surface acoustic wave exciting strength only by paired opposite electrode digits equipped with electrode digits crossing width longer than the central wavelength of a surface acoustic wave to be propagated on a substrate. CONSTITUTION:At an arbitrary position x' in a surface acoustic wave propagating direction (x) of interdigital electrodes 4 and 5 (bus bars 10 and 11), respective electrode digit width w1 and w2 is made longer than the central wavelength of the surface acoustic wave to be propagated on the substrate. Then, the lower interdigital electrode 5 applies the exciting strength of the same phase as the desired surface acoustic wave and the upper interdigital electrode 4 applies the exciting strength of the reverse phase. The difference between the length of the crossing width w2 of the lower interdigital electrode 5 and the length of the crossing width w1 of the upper interdigital electrode 4 is equal to the crossing width in the conventional case being not divided the electrode. Since the phases of the surface acoustic waves to be excited by the vertically divided interdigital electrodes are made reverse, and the desired surface acoustic wave exciting strength can be realized by an aperture length longer than the central wavelength of the surface acoustic wave to be propagated on the substrate, the diffraction effect can be suppressed.
Patent JP-H11142759-A (JP)
Title: Mirror fixation structure for optical writing unit
Inventor: KOJIMA AKIRA
IPC: G02B26/10
Filed: 1997-11-04
Abstract: PROBLEM TO BE SOLVED: To provide a mirror fixation structure for optical writing unit capable of very easily and exactly attaching a return mirror to a positioning part facing downwards. SOLUTION: The optical writing unit having the return mirror 3 which bends an optical path upward is constituted by mounting a wedgelike leaf spring 4 between the return mirror 3 and an optical writing unit housing 1, fixing the leaf spring 4 between the said mirror 3 and optical writing unit housing 1 with a projection 5 formed on the housing 1, and pressing the mirror 3 against the mirror positioning part 2 of the housing through the operation of the leaf spring 4.
Patent JP-H07257949-A (JP)
Title: Method and apparatus for preparation of asymmetric laminated glass
Inventor: KUROODO DEIDERO
IPC: C03C27/12
Filed: 1994-12-06
Abstract: PURPOSE: To enable the manufacture of a laminated pane consisting of an integrated or laminated hard supporting material and a soft plastic sheet having a desired characteristic by bringing a blank into contact with a supporting material at an area just before a pressurizing shaft while the assembly continuously passes through the pressurizing shaft.  
     CONSTITUTION: The supporting material to be coated with the glass sheet is carried in a synchronized way from a conveyor to a calendar. The glass sheet and the blank simultaneously reach a zone positioned in the upstream immediately above the pressurizing shaft. When the front end of the blank reaches the position of a V-shaped metallic piece 21, the front end of the blank detaches and falls while passing the circumference of a V-shaped base material, and comes in contact with the front end of the glass sheet which moves at the same speed as the blank. A movable frame inclines toward the upstream of the conveyor along an axis X 1 , and immediately after two components of a glasspane come into contact, those are caught by means of a pressurizing means. As the glasspane is pulled by means of a driving pressure roller 6 on the upper side while moving forward inside the calendar, the glasspane detaches from a continuous belt, and eventually, is assembled to the glass sheet. 
     COPYRIGHT: (C)1995,JPO
Patent JP-2001120688-A (JP)
Title: Method for manufacturing rubber sphere
Inventor: TANAKA TAKAYUKI
IPC: A63B45/00
Filed: 1999-10-25
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a rubber sphere that requires less material cost, is productive, provides durable rubber spheres and reduces the rate of occurrence of bares. SOLUTION: The profile of the opening 11 of a socket 3 is formed of two first circular arc portions 15 and two straight portions 17. Both ends of the straight portions 17 correspond to the ends of the first circular arc portions 15. The first circular arc portions 15 project outwards. Two first circular arc portions 15 are located on the same virtual circle 19. The ratio of the distance (a) of both ends of the first circular arc potions 15 to the diameter d of the virtual circle (a/d) is between 0.5 and 0.8. A preliminary molding is obtained by extruding a rubber composition from the opening 11 and cutting with a cutter. The preliminary molding is input into a pair of halved molds and compression molded. Thus a rubber sphere is obtained.
Patent JP-H11132821-A (JP)
Title: Gas meter
Inventor: KODAMA SANSHIRO
IPC: G01F3/22
Filed: 1997-11-04
Abstract: PROBLEM TO BE SOLVED: To accurately detect zero-condition of gas flow in real time by judging the zero-condition of gas flow when gas flow rate is between more than minimum value of gas flow rate calculated and a judgement value which is defined less than a threshold value for gas leakage adjustment. SOLUTION: A judgement means of zero-condition of gas flow 4 that judges a gas flow rate as zero-condition when gas flow rate calculated by a gas flow rate calculation means 2 is between more than minimum value of gas flow rate can be calculated and a gas flow rate which is less than a threshold value for gas leakage judgement which is applied as a gas meter. When judging gas flow rate as zero-condition, a shut off valve control method that experimentally activates a shut off valve open-closed at the zero-condition, a gas leakage detection method, or an abnormal gas pressure detection method is operated under controlling of an action control method 6 for zero-condition of the gas flow by an action executing means 5 for the zero-condition of the gas flow.  An accurate judgement of zero-condition of the gas flow in real time is provided by repeatedly performing a series of monitoring zero flow-judging operation.
Patent JP-H03172006-A (JP)
Title: Circuit for detecting output strain
Inventor: EDOARUDO BOTSUTEI
IPC: G01R31/00
Filed: 1990-11-07
Abstract: PURPOSE: To provide information on output distortion that does not depend on the maximum deflection of power voltage Vcc, operational frequency (in an operation range of an audio device) and an electric signal in an output by detecting inequilibrium between an input and an output on the last stage of an audio device. CONSTITUTION: An output stage is represented by an optional amplifier 3, receives an input signal VIN and generates a signal VOUT. This device is provided with comparators 5 and 6 that receive signals VREF and V-in inputs, that are acquired at a middle point between variable power dividers consisting of resistors R3 and R4 which are serially connected between the input of the output stage and the ground and between resistors R1 and R2 respectively. Input voltage is also given to a non-inversion input of a comparator 8, and the inverted terminal is connected to the ground. Comparators 5, 6 and 8 are organized as if they generate a distortion signal (ΔV), when the signal (V-) exceeds the signal (VREF) from the viewpoint of the absolute value. A variable power divider 4 enables setting distortion that needs intervention of the device and a related ΔV.
Patent JP-H08162855-A (JP)
Title: Preamplifier circuit
Inventor: SUGAWARA MITSURU
IPC: H03F1/08
Filed: 1994-12-06
Abstract: PURPOSE: To obtain a transimpedance type preamplifier circuit in which the effect of an AC coupling capacitor onto an output section is compensated to obtain a sufficiently low cut-off frequency. CONSTITUTION: After a current signal idet subjected to photoelectric conversion at a photodetector used for an optical receiver is converted into a voltage at a resistor 4 and a capacitor 5, amplified by a negative feedback amplifier circuit comprising an amplifier 2 and a feedback resistor 3, and the amplified result is outputted via an AC coupling capacitor 6. In the transimpedance preamplifier circuit as above, a capacitor 8 is connected in series to a feedback resistor 3 to compensate the deterioration in a low frequency characteristic due to the AC coupling capacitor 6 of an output section.
Patent JP-H06142705-A (JP)
Title: Hot rolled steel sheet
Inventor: FUKUI YOSHIMITSU
IPC: B21B1/22
Filed: 1992-11-12
Abstract: PURPOSE:To restrain the generation of edge drop by providing an edge-up peak point in the region where the thickness decrease in the end part of a cold rolled steel sheet which is obtained by cold rolling that is executed later can be restrained. CONSTITUTION:A hot rolled steel sheet has the edge-up peak points between the positions including points at 25mm toward the middle part from the end parts in the width direction and the end parts in the width direction. The thicknesses in these regions are made thicker than that in the other region (the region on the side of the middle part from the position at 25mm from the end parts in the width direction). This hot rolled steel sheet is manufactured with a rolling mill in which a pair of upper and lower work rolls having mutually symmetric taper parts in the end parts in the axial direction is provided in the final finishing stand in a state that the rolls are mutually symmetrically movable in the axial direction to the center of width of a hot rolled steel strip which is hot rolled with both rolls. In this way, the generation of edge drop is restrained, sheet crown in cold rolling is reduced and thickness accuracy in the width direction is improved.
Patent JP-S62159572-A (JP)
Inventor: BERUNTO EERERUSU
IPC: H04N1/40
Filed: 1986-12-20
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-H03161590-A (JP)
Title: Control device of paper making machine/coating machine
Inventor: KODAMA ATSUSHI
IPC: D21F7/00
Filed: 1989-11-21
Abstract: PURPOSE:To carry out synchronous operation between frames by specifying an informative means of upper stream frame to return and start a self sensor, a calculating means of transportation time of the downstream and a sensor scanning order means, respectively. CONSTITUTION:An uppermost stream frame #0 independently returns and starts a self sensor and has an informative means RA0. A middle frame #1 has an informative means LA1, a calculating means SA1 of transportation time and a sensor scanning order means SA1. A lowermost frame #2 has a calculating means LA2 of transportation time and a sensor scanning order means SA2. The informative means reports returning and starting of self sensor to the lowermost frame connected to thereto, the calculating means of transportation time obtains transportation time from intervals L1 and L2 between the means and the uppermost frames and speed of paper manufacturing and the scanning order means indicates returning and starting of self sensor after the lapse of transportation time from the returning and starting of the sensor of the uppermost frame.
Patent JP-2001127563-A (JP)
Title: Feedback clamp circuit and amplifier circuit, and control method
Inventor: OKUI KAZUNORI
IPC: H03G3/00
Filed: 1999-10-25
Abstract: PROBLEM TO BE SOLVED: To obtain a feedback clamp circuit and an amplifier circuit, and a control method by which a clamp capacity charging period can be reduced without oscillating the feedback clamp circuit at its charging state. SOLUTION: To a configuration of the feedback clamp circuit where a clamp capacitor 15 is charged with an output level of a differential amplifier 12 that compares an output from a differential amplifier 1 whose gain is variable with a voltage of a voltage source 13, after the clamp capacitor is charged, a buffer circuit feeds back an output of the clamp capacitor 15 to the differential amplifier 1 as an offset component of the input signal and the differential amplifier 1, an output drive capability adjustment resistor 6 that adjusts stepwise the drive capability to an output of the differential amplifier 12 and divides the clamp capacitor charging period into a plurality of parts depending on the drive capability is added.