baber/WOPTO huggingface dataset:
Patent JP-S62227116-A (JP)
Title: Optical multiplexer/demultiplexer
Inventor: TAKAI HIDEETSU
IPC: G02F1/23
Filed: 1986-03-28
Abstract: PURPOSE:To guide only incident light with specific wavelength out of one optical waveguide by forming a titanium heat-diffused layer periodically between two asymmetrical optical waveguides and causing a periodic disturbance of the refractive index, and arranging electrodes which induce electrooptic effect on the optical waveguides. CONSTITUTION:The two optical waveguides 2 and 3 are formed on the surface of a ferroelectric substrate 1 by diffusing Ti thermally. Further, a buffer layer 4 is formed of silicon oxide, etc., on the surface of the ferroelectric substrate 1. The electrodes 5 and 6 are formed on the optical waveguides 2 and 3 on the top surface. A voltage is applied between those electrodes 5 and 6 and the substrate 1 to generate variation in the refractive index of the optical waveguides 2 and 3 by the electrooptic effect corresponding to the voltage. Plural rectangular titanium heat-diffused layer 8 having specific pitch lengthwise are formed between the optical waveguides 2 and 3 on the surface of the ferroelectric substrate 1 in parallel to the optical waveguides 2 and 3 to constitute the periodic disturbance 7 of the refractive index varying in refractive index periodically and equivalently by the titanium heat-diffused layer 8.
Patent JP-H06279053-A (JP)
Title: Production of glass containing cdsxse(1-x) semiconductor microcrystal
Inventor: NOGAMI MASAYUKI
IPC: C03B8/00
Filed: 1993-03-26
Abstract: PURPOSE:To obtain a glass containing CdSxSe(1-x) semiconductor microcrystal and having excellent nonlinear optical characteristics. CONSTITUTION:An acidic solution containing Cd, S and Se elements and a component consisting of compounds to finally be a glass are mixed, then subjected to gel and dried to obtain a solidified body of the gel, which is heat treated in a reducing atmosphere and subjected to precipitate CdSxSe(1-x) (here, 0<x<1) semiconductor microcrystal to obtain the subject glass containing CdSxSe(1-x) semiconductor microcrystal.
Patent JP-H05274433-A (JP)
Title: System and device for moving body position recognition
IPC: H04N7/18
Filed: 1992-03-26
Abstract: PURPOSE:To recognize the position of a desired body in motion among bodies which move on a screen in different directions at different speeds by providing a binary coding means, a window generating means, and a position calculating means and recognizing the position of the moving body in real time. CONSTITUTION:An image signal consisting of three dimensions which are a horizontal component, a vertical component, and time is passed through a time- spatial filter to obtain a moving body image signal wherein the bodies in motion in the image are extracted or emphasized. This moving body image signal is inputted from an input terminal 1 and converted by a binary coding circuit 3 into a binary image signal according to a specific threshold value. The window generating circuit 4 generates a pyramid with multistage resolution for the binary image signal, windows respective resolution values, and determines the respective sides of the closest window. Then a position calculating means 5 calculates the center of gravity of the determined window to calculate the position of the body. A position recognition signal which is position data on the calculated object is outputted from a position signal output terminal 6.
Patent JP-2000262584-A (JP)
Title: Eye washing container
Inventor: HIROTA KOJI
IPC: A61H33/04
Filed: 1999-03-15
Abstract: PROBLEM TO BE SOLVED: To improve an eye washing effect by washing eyes with a clean liquid chemical. SOLUTION: A liquid receiving bowl 30 is combined with a container body 10 incorporating a pump 21 on a port part. The liquid receiving part 30 is provided with an upward jetting nozzle 33, and is connected to an operating rod 21c of the pump 21 by removing a stopper 41. In this case, the pump 21 operates via the liquid receiving bowl 30, then a liquid chemical is jetted from the jetting nozzle 33 to wash an eye. The liquid chemical after washing the eye can be stored in a liquid receiving part 31.
Patent JP-S55161992-A (JP)
Title: Device for reducing thrust of shaft of centrifugal fluid machine
Inventor: TANAKA TEIJI
IPC: F04D15/00
Filed: 1979-06-04
Abstract: PURPOSE: To simply reduce the thrust of a shaft, by providing back blades which comprise dynamic back blades on the side wall of an impeller and static back blades on a casing and are placed on at least one of the obverse and reverse sides of the impeller to regulate the distribution of static pressure.  
     CONSTITUTION: Dynamic back blades 11 are provided on the outer part of the back wall 1C of an impeller 1. Static back blades 12 are provided on a casing 4 near the inner part of the back wall 1C. In the gap defined by the dynamic back blades 11 and the casing 4, static pressure falls inwards in the radial direction due to a swirl caused by the dynamic back blades 11, as shown by a one-dot chain line in Fig. In the gas defined by the casing 4 and the static back blades 12, a static pressure fall is reduced because a swirl is suppressed by the static back blades 12, as shown by a two-dot chain line in Fig. Near the bottm of the impeller, the static pressure is higher than that in a case without static back blades. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H05231213-A (JP)
Title: Engine start controller
Inventor: SUGII TOSHIO
IPC: F02D41/06
Filed: 1992-02-18
Abstract: PURPOSE:To simply surely control engine start by setting a scavenging mode while stopping fuel injection during cranking if the throttle opening is more than a predetermined value and the engine rotational frequency is less than a predetermined value when a key switch is turned on. CONSTITUTION:An electronic control device 2 for inputting conditional information from the engine 1 while outputting control information to the engine 1 on the basis of the conditional information is provided in an engine 1. Then, the rotational frequency of the engine 1 and throttle opening are detected as the conditional information of the engine 1, and the setting and release of a scavenging mode are automatically calculated on the basis of the detecting result. That is when a key switch for the engine 1 is turned on, the throttle opening is more than a predetermined value and the rotational frequency of the engine is less than a predetermined value, then the scavenging mode is set while fuel injection during cranking is stopped. On the other hand, when the rotational frequency of the engine is more than the predetermined value continuously for at least a predetermined time, the scavenging mode is released.
Patent JP-H03269443-A (JP)
Title: Image carrier driver for print cartridge
Inventor: FURUYAMA TETSUYA
IPC: G03G15/00
Filed: 1990-03-19
Abstract: PURPOSE:To simplify the shape of the flange of an image carrier and to reduce the diameter of the flange by fitting a shaft support hole formed in the flange onto the fitting part of the shaft body of a driving shaft and fitting the recessed part of said hole onto the pin to the shaft body. CONSTITUTION:The image carrier 2 fitted to the housing 13 of the print cartridge A is formed by fitting flanges 41 onto both end parts of a drum 40. Each flange 41 is provided with the shaft support hole 43, which has plural recessed parts 43a in the inner peripheral surface, in the center of its rotation. Further, a fitting pat 46a and a pin 49 are provided at the tip part of the driving shaft 45 supported rotatably on a device main body. In this constitution, the flange 41 and shaft 45 are aligned with each other by the fitting part between the circular part of the hole 43a and the fitting part 46a to couple the carrier 2 concentrically with the shaft 45, and the pin 49 is fitted in the recessed part 43a to rotate the carrier 2 on the shaft 45.
Patent JP-S57184308-A (JP)
Title: Power supply circuit for amplifying device
Inventor: NAKAYAMA KAZUAKI
IPC: H03F1/30
Filed: 1981-05-08
Abstract: PURPOSE: To increase the converting efficiency of electric power, by applying the larger one of the voltage obtained by giving a level shift to the voltage approximate to the envelope of the output signal of an amplifying device and the voltage corresponding to the instantaneous value of the output signal to a power supply terminal.  
     CONSTITUTION: The input signal IN is amplified to a voltage amplifying stage 2 and then applied to the bases of a pair of transistors TRQ 1  and TRQ' 1 .  A power supply circuit 3 comprising two voltage generation sources 4 and 5 is provided to the positive side amplifying TRQ 1 . The source 4 compares through an error amplifier A 1  the amplified output V 0  produced by the TRQ 1  and TRQ' 1  with the voltage obtained by giving a level shift by a prescribed value to the voltage approximate to the envelope of the output V 0  through an error amplifier A 1 . Then an SCR is made to conduct in accordance with the value of the above-mentioned comparison. At the same time, the source 5 applies the voltage corresponding to the instantaneous value of the output V 0  to the base of a TRQ 2 . A diode D 1  is turned off when the voltage V 2 exceeds the output voltage V 1  of the source 4. Then the voltage V 2  functions as the working voltage source of the TRQ 1 . 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H03270073-A (JP)
Title: Insb photodiode array element
Inventor: SAKAMOTO TOSHIRO
IPC: H01L31/10
Filed: 1990-03-19
Abstract: PURPOSE:To obtain an InSb photodiode array element, in which no sensibility unevenness is generated, by forming a plurality of P-N junctions formed onto one main surface of an N-type InSb single crystal-line sheet and an Al2O3 film sputtered and applied onto the other main surface and installing a window plate combining a support plate mounted on the Al2O3 film through an adhesive material layer. CONSTITUTION:The title photodiode array element is composed of a plurality of P-N junctions shaped onto one main surface of an N-type InSb single crystalline sheet 101, an Al2O3 film 11 sputtered and applied onto the other surface and a window plate 13 combining a support plate set up to the Al2O3 film 11 through an adhesive material layer 12. The Al2O3 film 11 is applied and formed onto the rear of the N-type InSb single crystalline sheet (substrate) through a sputtering method. The sputtering method is selected because an insulating film can be formed at a low temperature. Accordingly, no sensibility unevenness is generated in an image sensing device using the InSb photodiode array element.
Patent JP-S58185637-A (JP)
Title: Polyvinyl chloride composition
Inventor: SHINGIYOUUCHI KAZUO
IPC: C08L23/00
Filed: 1982-04-23
Abstract: PURPOSE:To provide the titled compsn. which has flame retardance, can form a firm expanded carbonized layer during combustion and is useful for insulated wires, by blending chlorinated polyethylene, a zinc compd. and a specified metal oxide, hydroxide or carbonate with PVC. CONSTITUTION:1-50phr of at least one zinc compd. such as zinc carbonate and at least one member selected from oxides, hydroxides and carbonates of Sb, Mo, Si, Al, Mg and Ca, are blended with a mixture of 100pts.wt. PVC and not less than 30pts.wt. chlorinated polyethylene.
Patent JP-H02248197-A (JP)
Title: Speaker
Inventor: YAMAMOTO KAZUHIRO
IPC: H04R9/04
Filed: 1989-03-22
Abstract: PURPOSE:To prevent generation of open coil by indirectly connecting a flexible gold thread wire penetrating the midpoint of a diaphragm to both ends of a voice coil lead from a voice coil bobbin with a wire member of a required cross section. CONSTITUTION:Both ends of a voice coil led from a voice coil bobbin to a 1st electric connection section 13 and a flexible gold thread wire 14 connecting to a 2nd electric connection section 15 penetrating through a midpoint of the diaphragm 8 are connected by connection parts 13, 15 and relayed indirectly by a wire 16 whose cross section is rectangular along the surface of the diaphragm 8. Thus, an open voice coil easily caused when a voice coil wire member whose cross section is circular is connected directly to the wire 14 is prevented.
Patent JP-H09253080-A (JP)
Title: Osteoporosis diagnostic device
Inventor: ISHII TETSUYA
IPC: A61B8/00
Filed: 1996-03-26
Abstract: PROBLEM TO BE SOLVED: To accurately estimate the state of bone density and to easily make a highly reliable diagnosis. SOLUTION: Ultrasonic wave pulses are repeatedly radiated to the cortical bone of a testee and echos from the cortical bone are received. Received signals are converted to digital echo signals and echo levels are detected by a CPU 11. The CPU 11 extracts a highest echo level from the echo levels, a timing circuit 14 times echo arrival time after the. ultrasonic wave pulses are radiated until they are received as the echos, the echo signals obtained from the echo at the time of extracting the highest echo level are Fourier transformed based on the timed echo arrival time, a spectrum is obtained and the (characteristic) acoustic impedance of the cortical bone is calculated based on the spectrum.  Thus, since amplitude information and phase information are obtained, even when an osteoporosis advances and the acoustic impedance of the cortical bone becomes smaller than the acoustic impedance of soft tissues, the accurate diagnosis is made.
Patent JP-S51145344-A (JP)
Title: Manufacturing method of crystalline liquid cell
Inventor: SUZUKI ISAO
IPC: G09F9/00
Filed: 1975-06-09
Abstract: PURPOSE: Obtaining a crystalline liquid cell having a good contrast by giving a homogeneous direction to a crystalline liquid. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-S58187698-A (JP)
Title: Dehumidifier of heat insulting layer of construction buried underground
Inventor: HASHIMOTO KAZUO
IPC: F17C13/10
Filed: 1982-04-26
Abstract: PURPOSE:To secure the insulating efficiency of an insulating layer, by embedding pipes having a plurality of holes in the circumferential surfaces thereof and a dehumidifier fitted on each of said pipes in an insulating layer of a construction buried underground. CONSTITUTION:The dehumidifiers 19 is in the insulating layer 10. Each of the dehumidifiers 19 includes the pipe 21 having the plurality of holes 20 in the circumferential surface and a mesh pipe 22 mounted on the pipe 21 for preventing an insulating material such as perlite from entering said holes 20. An end of each pipe 21 is connected to a source of dry air, dry nitrogen or the like, and dry air, dry nitrogen or the like is blown out from the holes 20 into the insulating layer 10 to dry moisture therein.
Patent JP-S61233261-A (JP)
Title: Bias mechanism for notched gear
Inventor: MIYOSHI MASATO
IPC: G11B17/04
Filed: 1985-04-04
Abstract: PURPOSE:To provide a bias mechanism for a notched gear which enables changing of the bias direction of the energizing force of the notched gear in response to the rotation direction of a driving gear. CONSTITUTION:A notched gear 1 is a gear having notched parts 1a and 1b formed such that the portions having teeth, positioned facing each other, are notched. A driving gear 2 is rotated in the direction of an arrow mark A with the aid of a motor. A rotation force in a direction B in a drawing is exerted on the notched gear 1 through the force of a bias spring 4 secured to a bias lever 3. While a lock lever 8 of a lock mechanism 6 locks a notched part 5b of a plate cam 5, the driving gear 2 is prevented from engagement with the notched gear 1. When the lock mechanism 6 is released from locking, the notched gear 1 is rotated in a direction B by a bias force, and is engaged with the driving gear 2 and is further is rotated in the direction B through the driving gear 2. A lever 7 is moved in a direction C for working.
Patent JP-H11273140-A (JP)
Title: Large storage capacity disk
Inventor: ABE TADASHI
IPC: G11B7/24
Filed: 1998-03-19
Abstract: PROBLEM TO BE SOLVED: To increase a reproducing area of information by constituting it with a disk scraping out an eccentric circular or spiral isosceles V sectioned groove on its one surface or both surfaces and enlarging the surface area. SOLUTION: A one side single layer DVD is manufactured so that a storage surface of a rear surface of an acrylic or aluminous substrate 5 is scraped out with a V groove spirally by e.g. a laser cutting machine, and a reflection film 6 is stuck to the V groove with adhesive, and a transparent substrate 7 is stuck on it with the adhesive to be die pressed and thermally compressed. The vertical angle 9 of the V groove is preferred to be 92 deg. or above for avoiding halation of a laser beam.  In the case of the V groove, an area contributing to an information storage is increased by nearly 1.4 times than a plane time at the vertical angle 92 deg. of the V groove, and by applying this technique to a hard disk of each equipment, or a flexible disk of an audio/video equipment, e.g. a floppy disk, a CD, a VD, an MD and a DVD, etc., its storage capacity is increased, and the disk is made compact.
Patent JP-S5695514-A (JP)
Title: Turret for machining tool of turning machine
Inventor: HATSUSO HENNEPERUKU
IPC: B23B29/24
Filed: 1980-05-26
Abstract: 1. Turret (1) for cutting tools (15, 16) on a rotating machine (3) which turret is mounted on a cross slide rest which is slidable perpendicular to a spindle axis (10) along a carriage (5), which itself is slidable parallel to the spindle axis (10) of the rotating machine (3), a first inner set of cutting tools (16) being pivotally mounted at equal distances apart on a circle (111) concentric with an axis (12) of the turret (1) which axis runs parallel or nearly parallel to the spindle axis (10), a second set of cutting tools, of which at least one is an outer tool (15), being pivotally mounted with their cutting tips outside the circle (111) of the first set, so that between two cutting tools of one set one cutting tool of the other set is arranged, the distance of the cutting tip of an outer tool (15) from two neighbouring inner tools (16) of the first set being moreover the same or nearly the same, and finally the cutting tip of the tool engaged in the working position lying roughly in a plane which is parallel to the bed of the carriage (5) and which passes through the spindle axis (10), characterised in that the axis (12) is a greater distance (114) from the bed of the carriage (5) than from the spindle axis (10) and that the turret (1) can be turned through unequal angles (gamma, delta).
Patent JP-S56167847-A (JP)
Title: Fuel injection pump
Inventor: ISHIDA AKIO
IPC: F02M59/26
Filed: 1980-05-28
Abstract: PURPOSE: To maintain optimum operation conditions and to improve the output efficiency of the pump by a method wherein the switching of the press stroke of a plunger is made possible and a sleeve switching mechanism for varying the timing of initiation of fuel injection is provided.  
     CONSTITUTION: An oil supply hole 11 and an exhaust hole 12 are drilled in a plunger barrel 5 slidably fitted in the plunger 4 with the hole 11 displaced by a distance j from the hole 12. Further, a sleeve 13 is rotatably fitted on the outer periphery of the barrel. When the oil supply hole 11 is closed and the oil exhaust hole 12 is opened by moving the sleeve 13 with a rack 16, the press stroke of the plunger 4 becomes large and the initiation of fuel injection becomes delayed relative thereto and when the above condition is reversed, the initiation of fuel injection advances. In this case, if the effective strokes of the plunger 4 in the above two cases are made equal to each other, it is possible to change the time of initiation of fuel injection while keeping the amount of injection fuel constant. It is also possible to prevent the lowering of the driving capacity of the pump by changing the configuration of a recess 4b of the plunger corresponding to the oil supply and exhaust holes so as to extend the effective strokes of the plunger. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H07253334-A (JP)
Title: Optical encoder
Inventor: TSUBURAYA NORIO
IPC: G01D5/245
Filed: 1994-03-15
Abstract: PURPOSE:To provide an optical encoder which can electrically adjust the phase difference between two detected signals to a specific phase difference. CONSTITUTION:An electrical phase adjustment means of an optical encoder is provided with an inverting operational amplifier OP for generating a C-phase signal (180 degrees) which is the inverted signal of an A-phase signal (0-degrees) and A-phase and B-phase signals are connected to both terminals of a fixed resistor R and a variable resistor S which are connected serially. By adjusting the resistance of the variable resistor S, a D-phase signal with 5-degree phase, namely a-phase signal (5 degrees), is generated based on the A-phase and B- phase signals. By adjusting the resistance of a variable resistor U, an E-phase signal with 90-degree phase for the a-phase signal, namely b-phase signal (95 degrees), is generated based on the B-phase and C-phase signals.
Patent JP-H01243623-A (JP)
Title: Signal level converter
Inventor: ARAKAWA TADAHIRO
IPC: H03M5/20
Filed: 1988-03-24
Abstract: PURPOSE:To attain high integration with securing high precision by voltage- dividing a voltage between a power voltage and a ground by means of capacitors and providing a reset circuit for discharging energy accumulated in the capacitor. CONSTITUTION:The voltage between the power voltage Vcc and the ground GND is voltage-divided by the capacitors C1-C4 so as to obtain reference voltages V1-V3. Charges accumulated in the capacitors C1-C4 are discharged by the reset circuit 16 of a discharge circuit and the like added to a capacitor circuit 15 by turning on discharging analogue switches 8-11 connected to the capacitors C1-C4 in parallel, for example. Thus, signal conversion from binary to four value is attained with high precision, and the wide area of the circuit is prevented from being occupied even if the whole circuit is integrated into one chip, whereby high integration is attained.
Patent JP-S61229424-A (JP)
Title: Circular arc bending method by bending roll and control device
Inventor: YOSHIDA YUKIO
IPC: B21D5/14
Filed: 1985-04-01
Abstract: PURPOSE:To make uniform a bending accuracy, etc. by deviating the upper roll to the rear part and front part respectively by the prescribed distance in each stage of the former half and latter half and by setting a steel plate stopping position within the prescribed distance. CONSTITUTION:The upper roll 12 is arranged in parallel to the lower roll 11 of the front art and the lower roll 11' of the rear part and the position of the roll 12 is deviated to the rear part by d1 from the center line (l) between the lower rolls 11, 11'. In this case the deviating distance d1 is set to the distance that the necessary friction force for the feeding is obtainable without rolling the steel plate. The pressing of the roll 12 is performed once by stopping the rolls 11, 11' when the rear end of the steel plate reaches the prescribed position with proceeding of the work by the descent of the roll 12. In this case the distance d3 is set to the value which enables the end bending by one time of press bend. In the stage of the latter half as well the same bending is performed by deviating the roll 12 to the front part by the same distance as the d1. With this method the bending accuracy can be increased.