baber/WOPTO huggingface dataset:
Patent JP-H0212658-A (JP)
Title: Tape recorder
Inventor: TAKAI ISAMU
IPC: H03F1/00
Filed: 1988-06-30
Abstract: PURPOSE:To suppress the production of a noise sound and to improve the quality by detecting a voltage applied to an amplifier and adjusting the amplification gain of the amplifier freely. CONSTITUTION:In the case of controlling the gain of an amplifier 1 as shown in figure with a DC voltage applied to the input of the amplifier 1, the fluctuation of the output voltage appearing at an output terminal T1 of the amplifier 1 is decreased as output levels V2a, V2b of noise sound as shown in figure. Since it is possible to decrease t2 sufficiently more than t3, it is not required to prolong the leading of an output voltage of a DC power circuit unnaturally. Thus, the production of noise sound is prevented.
Patent JP-S5862906-A (JP)
Title: Class-a power amplifying circuit
Inventor: NAKAYAMA TAKUHIDE
IPC: H03F1/52
Filed: 1981-10-08
Abstract: PURPOSE:To prevent a failure for a circuit, by limiting an output current of a current source, when an overvoltage between a collector of a class-A output element and the circuit output is detected. CONSTITUTION:If any cause, such as abnormal increase in floating power supply voltage E0 and opened power supply, takes place in the circuit operation, the absolute value of a potential difference between collectors (a), (b) of class-A output transistors (TR) Q3, Q4 and the circuit output is increased. Then, Zener diodes D5, D6 are conductive and emitters of level comparison TRs Q9, Q10 are clamped to a voltage level-shifted by a prescribed value to the voltage of the collectors (a), (b). Thus, the current value of the TRs Q9, Q10 is limited and the current value of current source TRs Q11, Q12 is also limited accordingly. As a result, the current value of the TRs Q3, Q4 and a voltage between the collectors (a), (b) and the circuit can be limited to a prescribed value, to attain protection.
Patent JP-S5583278-A (JP)
Title: Gas laser tube
Inventor: TASHIRO MINORU
IPC: H01S3/03
Filed: 1978-12-19
Abstract: PURPOSE:To eliminate the leakage of discharging current in a gas laser tube by forming the coupled end surfaces of tubular members in spherical surfaces slidably with each other when butt coupling a plurality of ceramic tubular members by enclosing with metallic annular member. CONSTITUTION:Beryllia ceramic tubes 11, 11' having predetermined inner diameter and length are prepared, concave surface of predetermined radius of curvature is formed by polishing on the coupling end surface of the one tube 11, and convex surface of the same radius of curvature as the one tube 11 is formed by polishing on the coupling end surface of the other tube 11'. Steps are formed on the outer peripheral surfaces of the coupled portions of the tubes 11 and 11' with metallized layers formed on the circumferential projections connected thereto. Metallic tubular member 21 is engaged with the outer periphery of the coupled portion and secured to the metallized layer using gold-copper alloy brazing filler 3. Then, these ceramic tubes are additionally coupled to thereby form a large output gas laser tube with predetermined length. Thus, even if the discharging voltage is raised to 3000V, no leakage of current occurs nor stop the discharge.
Patent JP-H0212408-A (JP)
Title: Plant diagnostic device
Inventor: ADACHI TOSHIKO
IPC: G06Q10/04
Filed: 1988-06-30
Abstract: PURPOSE:To confirm the diagnostic process of a plant diagnostic device by judging an abnormal phenomenon occurring in a plant based on contents of process data inputted from the plant and diagnosing the cause of the abnormal phenomenon to successively display the diagnostic process. CONSTITUTION:An abnormality judging means 4 judges the type of the abnormal phenomenon occurring in a plant 1 based on stored contents of a process data base means 3, and the judgment result is reported to an abnormality diagnostic means 5. When being informed of the type of the abnormal phenomenon by the abnormality judging means 4, the abnormality diagnostic means 5 infers the cause of the abnormal phenomenon based on contents of a knowledge base corresponding to the type of the abnormal phenomenon in a knowledge base 6, stored contents of a process data base means 3, and data inputted from an input/output device 7 on demand by conversation with an operator, and the inference process is outputted to a diagnostic process display means 8. Thus, the diagnostic process of the plant diagnostic device is confirmed.
Patent JP-H0914660-A (JP)
Title: Cooker
Inventor: YONEMURA TSUYOSHI
IPC: F24C7/02
Filed: 1995-06-27
Abstract: PURPOSE: To shorten cooking time, restrict a dewatering rate of a food, and ensure good cooking finishing by setting a frozen foods only key, and actuating a gas burner at a predetermined maximum temperature for a predetermined time. CONSTITUTION: A magnetron 14 supplies high frequency electric waves to a cooking chamber 3. A gas burner 5 heats the interior of a cooking chamber 3 to a predetermined temperature with combustion of a burner 5. A frozen foods only key performs heating operation of frozen foods. A control circuit controls the magnetron 14 and the gas burner 5 to heat a cooked frozen food. The control circuit controls the operation such that the frozen food only key is set and operated to actuate the magnetron 14 with a previously set predetermined maximum output (about 500W) and the gas burner 5 at a previously set predetermined maximum temperature (about 300 deg.C), for a predetermined time.
Patent JP-S6223051-A (JP)
Title: Electrostatic latent image developing carrier
Inventor: KATAGIRI YOSHIMICHI
IPC: G03G9/10
Filed: 1985-07-23
Abstract: PURPOSE:To stabilize electrifiability of a toner for a long time by using the toner to coat the surface of a carrier to be used for developing an electrostatic latent image together with the toner. CONSTITUTION:The surface of the carrier for developing the electrostatic latent image together with the toner is coated with the toner. The toner is dissolved in a small amount of solvent and the surface of the carrier is coated with the toner to be used in combination with the carrier, thus permitting a thin film of the toner to be formed on the surface of the carrier, abrupt change of triboelectrifiability of the carrier with the toner to be prevented immediately after the start of using the developer, a stable electrification quantity of the toner to be ensured for a long time, and consequently, the carrier to exhibit stable printing characteristics.
Patent JP-S6316707-A (JP)
Title: Adaptive type noise eliminating device
Inventor: NAKAGAWA JUNKO
IPC: G10L21/0208
Filed: 1986-07-08
Abstract: PURPOSE:To eliminate only noise by detecting a period having no voice signal by a switch input in the environment where noise and voice coexist and setting an input level ratio with two input devices received of only noise as a threshold value thereby controlling the updating operation of an adaptive filter. CONSTITUTION:An input signal from input devices 1A, 1B is given to integration devices 31A, 31B in a voice segmentation section 3. The output of the integration devices 31A, 31B and the output of a thershold value setting switch 2 are given to a threshold value calculation circuit 32, and when the output from the switch 2 is logical '0', since an input signal from the input devices 1A, and 1B comes from a noise source only, the ratio of outputs of the integration devices 31A, 31B is calculated and the result is set as the threshold value. With the output from the switch 2 at logical '0', since it is possible there is a voice signal, the calculation of the threshold value is not executed, but the newest threshold value is outputted. A comparator circuit 33 compares the output ratio of the integration devices 31A, 31B with the threshold value being the output of the threshold value calculation circuit.
Patent JP-H0339995-A (JP)
Title: Electronic musical instrument
Inventor: WACHI MASATADA
IPC: G10H1/00
Filed: 1990-06-21
Abstract: PURPOSE:To easily design various kinds of equipment by allowing a computer to perform a process corresponding to an equipment kind code among software processing which are common to all the kinds of equipment CONSTITUTION:This instrument is equipped with an equipment code setting means 3 which sets an equipment code for specifying an equipment kind, the computer 4, and a storage means 5 stored with a control program which allows the computer 4 to perform selectively the processes corresponding to equipment codes. Then the computer 4 decides the equipment code set by the equipment kind code setting means 3 and executes selectively the control program stored on the storage means 5 according to the decision result. Consequently, respective kinds of equipment are easily designed.
Patent JP-H0210707-A (JP)
Title: Method of winding coil for producing magnetic field
Inventor: HACHIMAN KAZUHISA
IPC: H01F41/06
Filed: 1988-06-28
Abstract: PURPOSE:To reduce the size and the cost by winding hollow conductors in the even-numbered layers as to a mechanical structure and by drawing starting ends and finishing ends to one side of a coil for making an opening as well as by connecting each coil electrically in series. CONSTITUTION:Several number of electrically insulated hollow conductors, being placed adjacent each other, are wound mechanical structurally in the even-numbered layers. Then, starting ends 1, 2, 3, 4 and finishing ends 11, 22, 33, 44 are drawn to one side of a coil for making an opening. The coils are connected in series electrically to make them into one coil. By this, a space required for terminal treatment can be reduced.
Patent JP-H0210248-A (JP)
Title: Differential refractive index detector
Inventor: KITAOKA MITSUO
IPC: G01N21/41
Filed: 1988-06-29
Abstract: PURPOSE:To use a detector both for analysis and batch-off pickup by simple operation by setting a flow path system for the batch-off pickup so that the flow rate of said system is larger than that of a flow path system for analysis, and providing a path switching means. CONSTITUTION:An inflow/outflow pipe system (a) (a1 and a2) having the small amounts of inflow and outflow liquids is connected to a cell chamber 21. An inflow/outflow pipe system (b) (b1 and b2) having the large amounts of inflow and outflow liquids is connected to a cell chamber 22. A specimen introducing pipe C having a connecting part to a flow path C1 of a column 13 for liquid chromatography and the pipe systems (a) and (b) are connected to a six-way valve as a flow-path switching means 4. At the time of analysis, the other end of the pipe C is connected to the pipe a1. The pipe a2 is connected to a drain flow path (d). The pipes b2 and b1 are connected, and a closed pipe is constituted. At the time of batch-off pickup, the other end of the pipe C is connected to the pipe b1. The pipe b2 is connected to the flow path (d). The pipes a1 and a2 are connected, and a closed pipe is constituted. By this simple operation, one detector can be used for both analysis and batch-off pickup.
Patent JP-H0513506-A (JP)
Title: Semiconductor integrated circuit device
Inventor: SATO TOSHIHIKO
IPC: H01L21/60
Filed: 1991-07-02
Abstract: PURPOSE:To improve the reliability and production yield of a chip carrier which airtightly seals a semiconductor chip mounted on a package substrate with a cap. CONSTITUTION:A chip carrier is formed by face-down bonding a semiconductor chip 3 on a package substrate 2 through a CCB bump 6 and TAB leads 9 and airtightly sealing the chip 3 by soldering a cap 4 to the substrate 2, and then, soldering the rear surface of the chip 3 to the lower surface of the cap 4.
Patent JP-H0514621-A (JP)
Title: Picture reader
Inventor: SAKURAI KOICHI
IPC: H04N1/19
Filed: 1991-07-02
Abstract: PURPOSE:To obtain an inexpensive, light.weighted rail stay by making the rail stay of a sheet metal and forming a projection guiding an image sensor unit with burring processing. CONSTITUTION:A rail stay 2 supporting a movably an image sensor unit 1 made of a sheet metal is employed in place of a conventional aluminum-made rail stay 23. Moreover, plural projections 23a to guide the image sensor unit 1 are formed by burring work. Thus, the weight of the stay is reduced and the cost is decreased less than a conventional aluminum stay extruded or cut worked. Furthermore, when the image sensor unit 1 is put in/pulled out of the reader, the unit 1 is guided by the projection 23a and accurate positioning is realized.
Patent JP-H0514917-A (JP)
Title: Picture signal processor
Inventor: TAKAIWA KAN
IPC: H04N9/64
Filed: 1991-07-02
Abstract: PURPOSE:To independently control the amplitude and phase of a color burst signal so as to add them to a chroma signal by permitting current flowing only during a burst period to flow in two resistors which are equal in a resistance value and whose one ends are connected with a constant voltage source. CONSTITUTION:When potential Vbg set by an amplitude control signal changes, difference between the base potential of a transistor Q17 and that of Q18 occurs but the collector current of the transistor Q20 does not change though the rate of current 11 and 12 changes. Then, a total current value comes to be fixed and the sum of amplitudes in burst flag pulses R-Y.BFP and B-Y.BFP comes to be fixed. The pulses adjusted by a burst flag adjusting circuit are added to the color difference signals R-Y and B-Y of a base band and are added after being balanced-modulated in accordance with two chrominance sub-carrier wave signals where phases are different by 90 deg. so that the amplitude and phase of the color burst signal in the chroma signal is controlled.
Patent JP-S6140437-A (JP)
Title: Intake-air device in internal combustion engine
Inventor: URANISHI KOJI
IPC: F02M25/08
Filed: 1984-08-02
Abstract: PURPOSE:To control the idle speed of an engine and the purge of absorbed fuel, by disposing a shut-off valve and a flow control valve in a bypass passage bypassing a throttle valve, and by communicating the bypass passage with an evaporated fuel absorbing canister. CONSTITUTION:An intake-air passage 2 is formed with a bypass passage 8 bypassing a throttle valve 6. A shut-off valve 9 and a flow control valve 10 are disposed in the bypass passage 8 in the mentioned order from the upstream side thereof. Further, the bypass passage 8 is communicated with an evaporated fuel absorbing canister 15. Upon idling operation of an engine the shut-off valve 9 is opened to regulate the flow rate of idling air with the use of the flow control valve 10. Upon loading operation of the engine the shut-off valve 9 is closed to carry out the purge of fuel absorbed in the canister 15 by means of the flow control valve 10. With this arrangement it is possible to control the idle speed and the purge of absorbed fuel with the use of a single flow control valve.
Patent JP-S6222490-A (JP)
Title: Base plate for solar cell substrate and its manufacture
Inventor: HASUNO SADAO
IPC: H01L31/04
Filed: 1985-07-22
Abstract: PURPOSE:To make low-cost mass-production possible by applying gloss plating to a cold rolled thin strainless steel plate with thickness of less than 0.5mm, which is, in succession, subjected to thermal treatment at 500-1,200 deg.C or is coated on the gloss plating surface with Cr plating layer. CONSTITUTION:For the substrate material a stainless steel plate is used whose thickness is limited at a value less than 0.5mm. This thin steel plate is subjected to plating at least on a single side after rolling or annealing to eliminate stress, annealing at high temperature, etc. This procedure corrects fine defects containing surface flaws generated in the process of hot rolling. For the outermost surface, however, a gloss plating layer or a chromium plating layer is applied on the gloss plating layer which is excellent to obtain a flat surface with high reflectivity. A heat treatment is performed at a temperature between 500 deg.C and 1,200 deg.C in order to prevent gas discharge caused by a brightener at the time of substrate heating.
Patent JP-S5862995-A (JP)
Title: Remote controller for optical shutter
Inventor: TANAKA MASANOBU
IPC: H04N13/00
Filed: 1981-10-09
Abstract: PURPOSE:To obtain a remote controller with long movable distance with a simple construction, by driving an optical shutter switched according to an applied voltage with an output of a monostable multivibrator triggered with an output pulse of a Schmitt circuit. CONSTITUTION:A monostable multivibrator 3 is triggered with an outut pulse of a field discrimination circuit 2 discriminating left and right pictures and the output pulse gates an oscillator 4 and the output illuminates an infrared ray emitting diode 6 via driving circuit 5. This light is photodetected at a photodetecting diode 8 at the reception side, converted into an electric signal and selectively amplified 9. A Schmitt circuit 10 amplifies and rectifies this output and converts a waveform without a carrier wave to a logic level. Since the output of the transmission side is increased and the reception side can be operated to a weak light, the distance of remote control is increased, the noise-resistance is improved, and the operation can also be made stable.
Patent JP-H115335-A (JP)
Title: Paper feeder for printer
Inventor: AOKI TAKASHI
IPC: B41J23/02
Filed: 1997-06-18
Abstract: PROBLEM TO BE SOLVED: To prevent the infiltration of paper powder into a clearance formed between constituting members of a clutch when a clutch mechanism is opened in a paper feeder of a printer with the clutch mechanism. SOLUTION: A paper feed transmission gear 5 is fixed on a paper feed roller shaft 3. A paper feed driving gear 6 is also supported rotatably and movably in its longitudinal direction on a supporting section 56 of the paper feed transmission gear 5. A clutch mechanism is so constituted as to mesh with a serrated tooth section 60a of the paper feed driving gear 6 with a serrated tooth section 50a of the paper feed transmission gear 5 or release the meshing. A lever section 62 for rotating reciprocatingly the paper feed driving gear 6 is formed integrally with the paper feed driving gear 6. The paper feed driving gear 6 is energized for the paper feed transmission gear 5 by a coil spring 7.  A cover 61 is formed integrally with the paper feed driving gear 6 in a manner of covering almost the whole peripheries of the serrated tooth sections 50a and 60a of the paper feed transmission gear 5 and the paper feed driving gear 6.
Patent JP-H0759049-A (JP)
Title: Recorded information reproduction device
Inventor: TAKEYA TOMOYOSHI
IPC: H04N5/85
Filed: 1993-06-30
Abstract: PURPOSE:To allow a user to recognize the device to be in normal operation by reproducing a field of a video signal different from that of a video signal subject to field reproduction at initial reading in the case of re-reading. CONSTITUTION:A CPU 41 generates a search operation command when an error detection circuit 14 generates an error detection signal. A CPU 33 makes search operation to the search command and when the search operation finishes, the CPU 33 generates a search end signal when the search operation finishes. Then the CPU 41 discriminates production of a search end signal and gives a field switching command to the CPU 33. The CPU 33 discriminates production of a field switching command to NAND a variable N and 1 and the result is used for a new variable N. In the case of N=1, the NAND between the variable N and 1 is 0 and in the case of N=0, the NAND between them is 1, then it is equivalent to inversion of the variable N. When the field switching command is generated, the field of the video signal written in the picture memory 8 is selected.
Patent JP-2000345626-A (JP)
Title: Extensible panel device
Inventor: GOTO HIDEO
IPC: E04B1/62
Filed: 1999-06-09
Abstract: PROBLEM TO BE SOLVED: To provide an extensible panel device which is easy in attachment/detachment and fitted to a wall part of the width dimension of a large joint part. SOLUTION: In this extensible panel device 1 comprises a pair of hinge members 5 mounted on skeletons of right and left buildings 3, a center maintenance mechanism 8 using a link mechanism having an extendedly pivotable support part at four equally- spaced points in which at least two end parts are pivotably supported by a movable member of a pair of hinge members 5 separated by a specific clearance, a pair of fixed joint covers 9 rear end of which is fixed to the movable member of a pair of hinge members 5,a pair of movable joint covers 10 a substantially center part of which is located on the tip part of a pair of fixed joint covers 9, a pair of movable joint cover support members 11 one end of which is mounted on inner end parts of a pair of movable joint covers 10,  the other end of which is pivotably supported by a pivotable support part at a quarter position from both end parts of the center maintenance mechanism 8, a center joint cover 12 both end parts of which are located at a substantially center part of a pair of movable joint covers 10, and which covers a front surface between a pair of movable joint covers 10, and a fitting piece 13 capable of fitting the center joint cover 12 to a center pivotable support part of the center maintenance mechanism 8 in an attachable/detachable manner.
Patent JP-H0910051-A (JP)
Title: Corner hardware
Inventor: TAKECHI SHINICHI
IPC: A47B95/00
Filed: 1995-06-28
Abstract: PURPOSE: To provide corner hardware capable of easily joining a pair of members, and preventing the easy separation thereof. CONSTITUTION: This corner hardware is used to join a pair of orthogonal members 3, and has a pair of vertical pieces 8 formed on both sides of a horizontal piece 4 in such a state as faced to each other approximately at right angles and coming in contact with the internal surface of the members 3. Also, at least a pair of driving pieces 9 are formed on the external surface of the pieces 8 for being driven into the lower edges of the members 3. As a pair of the pieces 9 are driven into the lower edges of the members 3, a joint work therefor can be easily undertaken. In this case, a pair of the pieces 8 are kept in contact with the internal surface of the members 3, thereby enabling right angles to be maintained. Also, a load acting on the members 3 in an installed state works to prevent the pieces 9 from being loosened and mounting strength can be increased. Furthermore, an adjuster bolt is screwed to the tapped hole 7 of the horizontal piece 4, thereby allowing easy height adjustment.
Patent JP-S56141902-A (JP)
Title: Method and apparatus for manufacturing seamless pipe by mandrel hot rolling
Inventor: JIYATSUKU BERUDEIKU
IPC: B21B17/04
Filed: 1980-11-19
Abstract: In the manufacture of seamless steel tube by hot-rolling a tube blank on a mandrel in a continuous rolling mill, the tube is withdrawn from the mandrel and reduced by reducing roll stands downstream of and in alignment with the rolling mill which operate on the part of the tube withdrawn from the mandrel. The mandrel is advanced through the rolling mill at a controlled speed and is not released until the reduction of the tube has been completed. The reducing roll stands are then opened and the released mandrel follows the tube through the stands but without contacting the rolls.