baber/WOPTO huggingface dataset:
Patent JP-H0943519-A (JP)
Title: Endoscope image pickup unit
Inventor: HASEGAWA AKIRA
IPC: G02B23/26
Filed: 1995-08-01
Abstract: PROBLEM TO BE SOLVED: To provide a compact endoscope image pickup unit by which an optimum focusing is obtained and a good picture is obtained by approximately focusing the unit once and operating the automatic iris diaphragm provided in the unit. SOLUTION: This unit is provided with an endoscope 1 which relays an object image through an observation optical system and a TV camera which is freely attachable and detachable to the endoscope 1. The camera is provided with an image forming lens system 6 which reform the last image relayed from the endoscope 1, a diaphragm means 18 whose opening size is variable and a CCD(an imaging element) 21. At least one of the lenses constituting the system 6 and the means 18 are in a fixed relation in their relative position with respect to an optical axis direction. The focusing is conducted by varying the interval between at least one of the lenses and the CCD 21 in the optical axis direction.
Patent JP-H0539269-A (JP)
Title: Quinophthalone compound
Inventor: OYAMA TSUKASA
IPC: C07D215/36
Filed: 1991-08-06
Abstract: PURPOSE:To obtain a new compound useful for coloring a liquid crystal compound or an organic polymer material in high concentration, showing high solvent solubility, compatibility with binder and stability. CONSTITUTION:A compound shown by formula I (R1 is H, alkoxy, phenoxy, thiaalkoxy, halogen, etc.; R2 to R5 are H, 1-8C alkyl, alkoxy, alkoxycarbonyl, phenoxy, halogen or mutually adjoining groups may form a ring). The compound is obtained by reacting 3-hydroxy-2-methyl-6-isopropyl-4-cinchonic acid shown by formula II with a phthalic anhydride shown by formula III in a high-boiling solvent (e.g. nitrobenzene) at 150-230 deg.C. A material colored by using the compound can maintain a clear and transparent color tone and has extremely excellent storage stability.
Patent JP-S6439773-A (JP)
Title: Manufacture of semiconductor device
Inventor: OKUMURA YOSHIKI
IPC: H01L21/28
Filed: 1987-08-05
Abstract: PURPOSE:To prevent the electric characteristics of polysilicide gate transistor from deteriorating by a method wherein a protective films to prevent porous oxide film layers from being formed on the surface of polysilicide gates during the heat treatment of the semiconductor in polysilicide structure. CONSTITUTION:Impurity implanted regions 10 are formed by ion implanting the overall main surface of a semiconductor substrate 1 with an impurity 9 in the conductivity type reverse to that of the semiconductor substrate 1 using a polysilicide gate comprising polysilicon patterns 6, silicide patterns 7 and silicon material patterns 8. First, after forming sidewall oxide films 13 on the polysilicide gate sidewalls, impurity implanted regions 15 are formed by ion- implanting another films 12 as masks. Second, an LDD device as well as the polysilicide gate formed of a low concentration impurity region 16 and a high concentration impurity region 17 are composed by heat treating the semiconductor substrate 1. During the heat treatment, the silicon material patterns 8 change into silicon oxide films 18 to avoid the formation of porous oxide film layers deteriorating the electric characteristics on the surface of the silicide patterns 7.
Patent JP-S5899728-A (JP)
Title: Measuring apparatus for surface tension of thermoplastic resin
Inventor: SHIMONARI MASASHI
IPC: G01N13/02
Filed: 1981-12-09
Abstract: PURPOSE:To reliably and accurately measure the surface tension of thermoplastic resins with a simple apparatus, by vertically movably providing a gas extruder, a gas-introducing pipe and a die with a horizontal blow-off surface in a closed vessel which can be heated as well as evacuated. CONSTITUTION:Polyester pellets or other pulverulent and granular bodies are placed in a measuring container 27, which is mounted on a holder 26 of a vessel 1 and hermetically sealed. After a nitrogen replacement, the inside of the vessel 1 is reduced in pressure and maintained under a high vacuum. At the same time, the vessel 1 is heated by a heater 2 to melt the sample. After a predetermined temperature is confirmed by means of a thermometer inserted in a detecting end 19, the vacuum suction is suspended, and nitrogen gas having a predetermined temperature is introduced from a supply nozzle 23. Then, a pinion 17 is rotated to immerse a parallel surface 12 of a die 10 attached to an introducing pipe 9 into the sample in the measuring container 27. Nitrogen is released into the sample by employing an extruder 14 to form a bubble on the parallel surface 12. The size of the bubble is measured through a peep window 6 to measure the surface tension of the sample.
Patent JP-S6260479-A (JP)
Title: Oscillatory-wave motor
Inventor: OKUMURA ICHIRO
IPC: H02N2/00
Filed: 1985-09-06
Abstract: PURPOSE:To reduce energy loss in a support section, and to improve the efficiency of a motor by supporting a diaphragm by a gas filled body. CONSTITUTION:An annulus ring-shaped diaphragm 1 corresponding to a stator for a motor is supported onto a ring-shaped tube 2a, which has approximately the same shape as a diaphragm 1 and the inside thereof is filled with a gas. A thin flexible material, such as a rubber, polyvinyl chloride, etc. is used as the tube 2a. A motor case 3a functions as a shaft for positioning the center of the diaphragm 1 in combination. A moving body on the diaphragm1 is driven by progressive oscillatory waves generated in the diaphragm 1.
Patent JP-S5986902-A (JP)
Title: Band pass filter
Inventor: ISHIDA OSAMI
IPC: H01P1/212
Filed: 1982-11-10
Abstract: PURPOSE:To make a cut-off characteristic steep and also to make a titled band pass filter thin by constituting it by combining a cavity resonator having a semi-circular section, which is brought into contact with a plate-like wall surface and forms a pair, with a cylindrical cavity resonator. CONSTITUTION:A plate-like wall surface 15 is provided on a face vertical to an electric field of a cylindrical cavity resonator, therefore, by providing this wall surface 15, a distribution of an electromagnetic field is not varied. A coupling hole 16 becomes a coupling hole of electric field coupling by being provided on a position where an electric field vertical to the wall surface becomes maximum, and realizes coupling whose polarity is different from that of a coupling hole 9 of magnetic field coupling.
Patent JP-2000024374-A (JP)
Title: Washing machine
Inventor: KAWASAKI TAKERU
IPC: D06F33/02
Filed: 1998-07-13
Abstract: PROBLEM TO BE SOLVED: To accurately sense amount of a laundry put into a spinning tub in a short period of time regardless of fluctuation in power source voltage, difference in power source frequency, and difference in characteristics of a motor itself, in a washing machine wherein a mixing blade and a spinning tub are rotated by a motor. SOLUTION: Switching elements 23a-23f for feeding power to a motor 21 to drive a mixing blade are controlled by a control means 24 to control the operation of the motor 21. A pulse generating means 25 generates a pulse signal N times (N: a natural number) during the time when the motor 21 or mixing blade makes one revolution. The means 24 controls the elements 23a-23f so that the number of revolution of the motor 21 or mixing blade becomes a predetermined number of revolution to determine the amount of a laundry put into a spinning tub from a switching control amount value at the time of control and an input current value of the elements 23a-23f sensed by a current sensing means 26.
Patent JP-H09100125-A (JP)
Title: Thin film of potassium niobate, its production and optical element using the same thin film
Inventor: KAWAI HIDEKI
IPC: C01G33/00
Filed: 1996-07-08
Abstract: PROBLEM TO BE SOLVED: To obtain a thin film of perovskite type potassium niobate useful as an optical element orientated in (110), excellent in transparency by preparing the thin film of potassium niobate on an amorphous substrate. SOLUTION: A glass substrate containing one or more of an alkaline earth metal, rare earth metal, Bi, Pb, Nb, Co, Ni and W is used as an amorphous substrate. Or a composite amorphous substrate having formed an amorphous layer containing one or more elements of the alkaline earth metal, rare earth metal, Bi, Pb, Nb, Co, Ni and W on a crystal, an amorphous or their combination substrate is used. A thin film of perovskite type potassium niobate is prepared on the amorphous substrate by PVD method, sol-gel method, CVD method, etc. Consequently, the objective thin film is obtained. Since the amorphous substrate has its wide selection of refractive index, the thin film is usable as an optical element such as optical waveguiding element, SHG element, optical switching element, etc.
Patent JP-2001024612-A (JP)
Title: Broadcasting monitoring device
Inventor: NAKAYAMA JUN
IPC: H04J3/00
Filed: 1999-07-12
Abstract: PROBLEM TO BE SOLVED: To eliminate the need for increasing the number of operators and to suppress the cost required for constructing a monitor system by comparing base material data of each channel, which are obtained by means of receiving broadcasting data transmitted from broadcasting equipment for a broadcasting, with base material data before the broadcasting, which are fetched from broadcasting equipment, and judging a fault situation. SOLUTION: A comparing part 313 inputs video data DV1 of a prescribed channel, which are outputted from a base material transmitting system, delayed for a prescribed time and not encoded, and decoded video data DV2 of the same channel, which are obtained by receiving the present broadcasting by a receiving device, and then the relative rate of data DV2 with data DV1 is detected. A fault judging part 314 judges that a fault occurs in digital video data of the channel being on the air, when a prescribed condition such as a frequency by or a period in which the relative rate exceeds a threshold, for example, is satisfied after comparison between the relative rate inputted from the comparing part 313 and the threshold.
Patent JP-S6174369-A (JP)
Title: Semiconductor device
Inventor: KATO YOJI
IPC: H01L29/73
Filed: 1984-09-20
Abstract: PURPOSE:To raise the current-amplification factor of a semiconductor device by a method where in virtual base regions are formed in the semiinsulative semiconductor, wherein plural pieces of the third regions are provided, according to injection of majority carrier. CONSTITUTION:Virtual base regions 19 are formed in a semiinsulative semiconductor 11, whereby majority carrier, which is injected from a first region 12, reaches a second region 13 through the virtual base regions 19 and a bipolar transistor operation is performed. At this time, as third regions 14 are already provided plural pieces in number, a breakdown is hardly generated even though a high-output operation is performed. This is due to such reasons that since the base regions is formed at a semiconductive region 18 outside the regions 14, the diffusion length of the injected carriers is very long and any effect is hardly exerted from a part of the surface of the semiconductor, where the rate of recombination is large.
Patent JP-H1037752-A (JP)
Title: Intake device for internal combustion engine
Inventor: YAMAGUCHI JUNICHI
IPC: F02B31/00
Filed: 1996-07-26
Abstract: PROBLEM TO BE SOLVED: To provide an intake device for an internal combustion engine which can obtain proper intake swirl flow intensity in respect to lean combustion with certainty. SOLUTION: An outer diameter of an intake control valve 107 is so set that, when the intake control valve 107 is closed, a flow dividing ratio = (an air amount flowing auxiliary intake passages 101a, 101b)/(total volume of intake air (flow) = (an air amount flowing the auxiliary intake passages 101a, 101b)/ (an air amount flowing a gasp 107a between the intake control valve 107 and a main passage 110) + (an air amount flowing the auxiliary intake passages 101a, 101b)} = 0.5 to 0.95. Namely, it is set smaller than an inner diameter of a part where the intake control valve 107 is mounted in the main passage 110. Intake swirl flows 111a, 111b are prevented from being excessively intensified or weakened.
Patent JP-S5897641-A (JP)
Title: Knocking detector
Inventor: KABASAWA SATORU
IPC: G01L23/22
Filed: 1981-12-07
Abstract: PURPOSE:To detect abnormal oscillation accurately by making a decision on the basis of the amplitude level of oscillation of an internal combustion engine in a specific frequency band and a knocking threshold value determined according to the number of times of ignition. CONSTITUTION:Mechanical oscillation of an internal combustion engine is transduced into the amplitude of an electric signal S by an electric signal transducing part 1 and a specific frequency extraction part 2 performs a frequency analysis to extract only a signal S' of about 8kHz. The signal S' is sampled by a sampling part 3 and the sampled value Si' is sent out to a knocking detection part 6. The number of times of ignition of a plug is calculated by an ignition frequency counting part 4, whose value Mi is sent to a threshold value holding part 5 to decide on the threshold value Ei of knocking stored on the basis of the value Mi, thereby sending it to the knocking detection part 6. The knocking detection part 6 compares the sampled value Si' with the threshold value Ei to decide on a knocking state when Si'>=Ei.
Patent JP-S5987333-A (JP)
Title: Vibration tester
Inventor: MIZUGUCHI SHINICHI
IPC: G01M7/04
Filed: 1982-11-12
Abstract: PURPOSE:To attain a tester where the height of a vibration table plate is changed easily, by adjusting the quantity of air supplied to an air suspension to change the internal pressure of the air suspension. CONSTITUTION:An oscillatory table plate 1 where an object to be tested is placed and is oscillated is fixed onto a bellows 3 as the air suspension by fixing metallic tool 2. The bellows 3 is made of neoprene or the like, and a girdle ring 4 is fitted to a recessed part between two stages of expanding parts, and the lower end of the bellows 3 is fixed to a fixed plate 7 on a controller 6 by a fixing metallic tool 5. The girdle ring 4 prevents expansion of the bellows 3 to hold the oscillatory table plate 1 horizontal when the inside of the bellows 3 is pressurized. The controller 6 controls the quantity of air supply/discharge to an air vibrator 16 through an air pipe 8 and a valve by an air compressor 9 and is fixed to a base 10 by anchor bolts 11.
Patent JP-H0755268-A (JP)
Title: Refrigerating machine
Inventor: INOUE SEIJI
IPC: F25B43/02
Filed: 1993-08-09
Abstract: PURPOSE:To control the circulation flow rate of lubricating oil corresponding to the flow rate of refrigerant with a simple construction and at low costs. CONSTITUTION:Oil mixing with refrigerant circulates through a refrigerating cycle 2, and a refrigerant pipe 9a connects a refrigerant evaporator 7 and an EPR 8. An oil reservoir 1 to store the oil is mounted on the refrigerant pipe 9a with its opening facing the underside of the pipe wall. The oil reservoir 1 has an enough volume inside to store a specified amount of the oil and communicates with a refrigerant pipe 9b, that connects a refrigerant compressor 3 and the EPR 8, through a thin pipe 13 connected to a discharge port in the bottom of the oil reservoir 1. The length and inside diameter of the thin pipe 13 are designed so that the pipeline resistance of the thin pipe 13 including the oil reservoir 1 is larger than that of the refrigerant flow path of the EPR 8 when a throttle port of the EPR 8 is opened full.
Patent JP-H0483179-A (JP)
Title: Handler for tape carrier
Inventor: MIURA KIYOTOSHI
IPC: G01R31/00
Filed: 1990-07-26
Abstract: PURPOSE:To enable high-speed feed at which a sprocket hole is in no danger of being deformed or damaged by holding a portion where electronic parts are not installed from above and below in a sandwiching manner, and feeding an IC chip by a designated distance. CONSTITUTION:Holders 1U, 1L on the feed side of a measurement portion PC hold a tape carrier from above and below in a sandwiching manner while using a position PA as a home position. Holders 2U, 2L on the winding side of the portion PC similarly hold the tape carrier and perform a test of measuring an IC chip. Thereafter, the IC chip is fed by a distance corresponding to one pitch of the division of the tape carrier divided into several portions. A feed means does not feed the IC chip by hanging the claw of a sprocket to a sprocket hole and so even when the IC chip is fed at high speed the tape carrier is in no danger of being deformed or damaged and therefore another IC chip to be measured next can be fed to the position PC at high speed.
Patent JP-2000027679-A (JP)
Title: Exhaust emission control device for lean-burn internal combustion engine
Inventor: ICHINOMOTO KAZUHIRO
IPC: F02M25/07
Filed: 1999-07-12
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device for a lean-burn internal combustion engine which carries out lean burn operation on the side leaner than a stoichiometric air fuel ratio, under a desired operating condition, and which can effectively purifying NOx during lean mixture operation without worsening of driveability. SOLUTION: An exhaust system of a lean-burn internal combustion engine is provided with an NOx purifying member which lowers its NOx purifying efficiency as the time lapses when the engine is operated in a lean mixture condition, but which can recover its purifying function if the operation is changed over into an operation with a theoretical air-fuel ratio or an air-fuel ratio richer than the theoretical air-fuel ratio, and the engine is provided with an engine control means 25 which sets the degree of mixture of air and fuel fed into the engine in order to prevent the output of the engine from varying so that the air-fuel ratio is temporarily changed over into a stoichometric or rich condition, and which gradually changes the air-fuel ratio from a lean condition into a rich condition upon change-over therbetween.
Patent JP-2000025674-A (JP)
Title: Multistage sprocket device for bicycle
Inventor: OZAKI NOBUO
IPC: B62M9/10
Filed: 1998-07-14
Abstract: PROBLEM TO BE SOLVED: To provide a new multistage sprocket device for a bicycle which employs a basic structure where a multistage free wheel for the bicycle is mounted to a hub for the bicycle, and can improve life and strength of a bearing portion for rotatably supporting the hub for the bicycle on a hub shaft. SOLUTION: This multistage sprocket device 1 for a bicycle has a hub body 3 that is rotatably supported on a hub shaft 4 by a left bearing portion 7 and a right bearing portion 8, an inner ring 16 screwed with a right shoulder portion 9 of this hub body 3, a sprocket support body 19 one-way-rotatably supported on this inner ring 16, a plurality of sprockets 21 with different diameters mounted to this sprocket support body 19. The right bearing portion 8 is formed from a ball receiving surface 16a formed on the inner periphery of the inner ring 16, a ball receiving surface 10a formed on the outer periphery of a ball pushing member 10 screwed on the hub body 3, and a steel ball 11 placed between these both ball receiving surfaces.
Patent JP-S6354017-A (JP)
Title: Decision circuit for fault masking
Inventor: KOBAYASHI TOYOHIKO
IPC: H03K19/23
Filed: 1986-08-25
Abstract: PURPOSE:To attain correct masking with simple constitution so long as three or over of normal units exist by ANDing a restart signal and a fault identification signal based on the comparison between a decision signal and a processing result signal so as to apply masking in response to the result of processing. CONSTITUTION:A processing result signals 3 from each unit is fed as an address signal, a processor 1 outputs a decision result signal by majority decision and inverts a fault identification signal 8 to logical '1' to a unit dissident with the result of decision. The signal 8 and a restart signal 6 being logical'' at restart are ANDed by an AND gate 2 corresponding to each unit and an identification signal 9 outputted from a gate 2 is fed to the processor l as the address. Thus, the signal 3 corresponding to a unit whose signal 9 is logical'' is masked, the correct fault masking is applied with simple constitution so long as three or over of normal units exist, and the fault masking decision circuit with high reliability is attained.
Patent JP-H0197908-A (JP)
Title: Light transmission/reception-side optical connector
Inventor: SAITO YASUAKI
IPC: G02B6/42
Filed: 1987-08-07
Abstract: PURPOSE:To efficiently perform the connecting work by bringing the end face of an optical fiber cable into contact with the light transmission/reception face of a light transmission/reception element and connecting the optical fiber cable to the light transmission/reception element in this state. CONSTITUTION:A detent projecting part 41 on the inside face of a cable-side optical connector 22 is only through into a coating 38 to fix an optical fiber cable 36. At the time of inserting the optical fiber cable 36 to a holder 25 of a light transmission/reception-side optical connector 21, an engaging piece 42 of the cable-side optical connector 22 is only engaged with an engaging piece 34 to the light transmission/reception-side optical connector 21 to achieve desired connection. That is, an end face 37 of the optical fiber cable 36 is brought into contact with a light transmission/reception face 28 of a light transmission/ reception element 26, and in this state, the light transmission/reception element 26 is displaced against the elasticity of a spring part 33 of a terminal lead 32 in the left direction in the figure. Thus, the optical fiber cable is connected to the light transmission/reception element without a complicated cable-side optical connector by the easy work.
Patent JP-H02181155-A (JP)
Title: Electrophotographic sensitive body
Inventor: KAWAMURA TAKAO
IPC: G03G5/08
Filed: 1989-07-31
Abstract: PURPOSE:To enhance photosensitivity and to reduce residual potential by specifying an atomic ratio of Si/Ge in an amorphous SiGe layer and that of Si/C in an amorphous SiC layer so as to satisfy each specified condition. CONSTITUTION:The electrophotographic sensitive body is formed by successively laminating on a conductive substrate 1 the amorphous silicon germanium layer 2, the amorphous silicon carbide layer 3, and an organic photosemiconductor layer 4. The atomic composition of the layer 2 and that of the layer 3 are controlled as follows: 0.05<x<0.5, and 0<y<0.5, where x is that of Si1-xGex the atomic formula of the layer 2, and y is that of Si1-yCy, the atomic formula of the layer 3 thus permitting photosensitive to be enhanced and residual potential to be remarkably reduced.
Patent JP-2000024656-A (JP)
Title: Floated oil recovering method
Inventor: MORI YOJI
IPC: C02F1/40
Filed: 1998-07-14
Abstract: PROBLEM TO BE SOLVED: To enlarge utilization range by freely moving a recovering device excellent in the recovery of not only oil light in specific gravity, oil made highly viscous, scum and the like and floating on liquid. SOLUTION: A gate ring 17 provided with an opening part and floatable in liquid by the buoyancy of a subfloat 15 is attached vertically movably to a suction port 11 of a submerged pump 5 provided so as not to be floated nor sunk in the liquid 4 by the buoyancy of a main float 2 and a scraping means 31 for scraping the floating material such as the floated oil or scum with the liquid and allowing them to flow in from the opening part to the suction port of the submerged pump is provided on the upper part of the opening part of the gate ring 17. The scraping means 31 is supported by the main float 2 and a discharging port 9 for discharging the floated materials with the liquid flowing in from the suction port is provided in the submerged pump.