baber/WOPTO huggingface dataset:
Patent JP-S61281108-A (JP)
Title: Production of vinyl chloride copolymer
Inventor: ISAKA TAKASHI
IPC: C08F214/06
Filed: 1985-06-06
Abstract: PURPOSE:To produce a vinyl chloride copolymer having improved thermal stability and antistatic properties, by copolymerizing vinyl chloride with an alkyl halide salt of an aminoalkyl acrylate. CONSTITUTION:Vinyl chloride is copolymerized with preferably 0.5-10wt% alkyl halide salt of an aminoalkyl acrylate expressed by the formula (R<1> is H or CH3; R<2> and R<3> are 1-4C alkyl; n is an integer 1-4), e.g. a salt of N,N- dimethylaminoethyl methacrylate with methyl chloride, at 0.7:1-3:1 weight ratio of the water to the total monomers by the aqueous suspension polymerization method, preferably at 30-70 deg.C.
Patent JP-H01291205-A (JP)
Title: Optical fiber connecting device
Inventor: FURUKAWA HIROSHI
IPC: G02B6/38
Filed: 1988-05-18
Abstract: PURPOSE:To enable rapid and always exact engagement by providing recesses to a rear end face of a connector and providing projecting parts which fit into this recess to a leaf spring body. CONSTITUTION:The rear end face 25 of the connector 20 is provided with the recesses 23 in the symmetrical positions on both sides of the position where the optical fiber 10 is inserted. The projecting parts 34 are provided to pawl parts 32 of the leaf spring 30 so as to fit thereto. If, therefore, the pawl parts 32 of the leaf spring body 30 are engaged with the rear end faces 25 of the butted and aligned connectors 20, the connectors are detained to each other by sliding the spring body where the recesses 23 and the projecting parts 34 match each other. The point and direction where the pressing force directed from the rear end of the connectors 20 toward the butting direction in this engagement state exist on the axial line of the optical fibers 10 and the connectors are engaged with each other in an exactly normal state. The rapid and sure engagement state is thereby obtd.
Patent JP-H09300790-A (JP)
Title: Tape cassette
Inventor: SUGIMOTO ATSUSHI
IPC: B41J32/00
Filed: 1996-05-16
Abstract: PROBLEM TO BE SOLVED: To provide a tape cassette which is of a simple constitution and is capable of giving an appropriate gripping force when a printing tape is transported. SOLUTION: Knurls 242, 243 comprising recessed parts and projecting parts formed at a specified pitch extending in the axial direction respectively are provided on both sides of the axis across the grooved part 241 of a tape feed roller 24. In addition, given a pit between the adjacent projecting parts of the knurls 242, 243 is (d), each of the knurls 242, 243 is formed in such a manner that the knurls are shifted from each other by 1/2d in the peripheral direction. The tape feed roller 24 with the knurls 242, 243 comes into contact intermittently with a printing tape. However, it is possible to allow the knurls 242, 243 to come into contact with the printing tape at half the actual pitch by deviating the phase of each of the knurls 242, 243 by 1/2 pitch.
Patent JP-H09307172-A (JP)
Title: Wavelength converter circuit
Inventor: INOUE YASUSHI
IPC: H01S5/00
Filed: 1996-05-16
Abstract: PROBLEM TO BE SOLVED: To convert signal lights of a short wavelength band (for example, 1.3μm band) into signal lights of long wavelength band (for example, 1.5μm) without converting the signal lights into an electric signal. SOLUTION: This wavelength converter circuit comprises a super-periodic structure diffraction grating semiconductor laser 11 which is in an oscillation condition at a first wavelength of a long wavelength band, and when strength modulation signal lights of a shorter wavelength band than a short wavelength band are input, an oscillation wavelength of a long wavelength band is shifted between a first wavelength and a second wavelength in response to the turn-on/off; and a wavelength selecting means 12 for fetching out wavelength components of either the first wavelength or the second wavelength which is shifted in response to the turn-on/off of the signal lights from the super- periodic structure diffraction grating semiconductor laser.
Patent JP-H04348710-A (JP)
Title: Furniture
Inventor: TAKEMURA TAKAHISA
IPC: A47B97/00
Filed: 1991-05-28
Abstract: PURPOSE:To satisfactorily execute the indoor illumination by utilizing effectively furniture of a rectangular parallelopiped installed in a corner part. CONSTITUTION:This furniture is containing furniture of a rectangular parallelopiped installed in a corner part in a room. In the upper part of the furniture part of an opposite side to the corner part, openings 1a, 1b are formed on the front and the side face of the furniture. In these openings 1a, 1b, a lighting equipment 2 for executing illumination from the openings 1a, 1b is provided.
Patent JP-S62279220-A (JP)
Title: Blowby gas circulator for internal combustion engine
Inventor: HASHIOKA HITOSHI
IPC: F01M13/02
Filed: 1986-05-27
Abstract: PURPOSE:To ensure the brake performance by coupling a crank chamber and an inner chamber of cylinder head cover respectively to the suction and delivery ports of a brake booster pump through conduits and arranging a valve which opens when the pressure difference between said chambers is high in the crank chamber side conduit. CONSTITUTION:The interior of a crank chamber 13 and the inner chamber 15 of a cylinder head cover are coupled through conduits 26, 25 to a suction port 24b and a delivery port 24a of a vacuum pump 24 for feeding a negative pressure to a brake booster 35. A control valve 32 is arranged in the conduit 26 for coupling the crank chamber 13 and the suction port 24b of the vacuum pump 24 and opened by means of a computor 36 only when the pressure difference between said chambers exceeds over a predetermined level based upon the detection levels of pressure sensors 38, 39.
Patent JP-H11301205-A (JP)
Title: Caster
Inventor: HOSOKAWA YOSHIHIRO
IPC: B60B33/00
Filed: 1998-04-14
Abstract: PROBLEM TO BE SOLVED: To realize a rigidity of a caster even fully made of plastics by forming a semi-spherical concave portion to a bottom wall center portion of a cylindrical mandrel having a bottom made of a glass fiber reinforced plastic to which a radial reinforcing rib having a cross section of a + form, a * form, etc., is integrally formed to an inside center and a convex portion to a bottom wall of a supporting aperture and freely engaging the convex portion with the concave portion. SOLUTION: In a mandrel 1 obtained by injection molding a glass fiber reinforced polyamide resin (PAG), a radial reinforcing rib 4 having a cross section of a + form is integrally formed on an inside center and a semi-spherical concave 6 is formed at a center portion of a bottom wall 5 thereof. Further, a cylindrical supporting aperture 22 having a bottom with which the mandrel 1 can be freely engaged is formed at an upper surface eccentric position of a circular covered portion 21 of a yoke 2, and a semi-spherical convex 26 is formed at a center of a bottom wall 25 thereof. Since the reinforcing rib 4 having a cross section of a + form reinforces the bottom wall 5 in the cylindrical mandrel 1 having the bottom, the concave 6 has an enough strength against a concentrating load given from the convex portion 26.  Therefore, the mandrel 1 has a high durability and can be used instead of a solid mandrel made of a metal.
Patent JP-S5246889-A (JP)
Title: Solid electrolyte oxygen detector
Inventor: OGIWARA SATORU
IPC: G01N27/409
Filed: 1975-10-11
Abstract: PURPOSE: The captioned detector for oxygen concentration particularly in exhaust gas of automobilies, wherein a measuring gas-side electrode is formed of a specific mixed porous material whereby the change of the electrode with time is loss and the decrease in output voltage and the deterioration in response characteristics owing to the change of the electrode with time are less. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S5993464-A (JP)
Title: Image forming device
Inventor: FUJII MOTOHARU
IPC: G03G15/06
Filed: 1983-07-05
Abstract: PURPOSE:To obtain a picture which has sufficient contrast and no fogging by controlling an electrostatically charged potential and a development bias corresponding to the density values of the black part and white part of a master. CONSTITUTION:The master 1 is fitted around a drum and corona charging is performed to form an electrostatic image, which is printed by being developed with toner and then transferring to paper. The master 1 has the black part 2 and white part 5 in a nonpicture part. The density values of both parts vary according to various conditions of a master generating machine. Thus, the means which controls the charged potential by detecting the density of the black part 2 and the development bias by detecting the density of the white part 5 is provided to an electrostatic printing machine to obtain excellent print picture quality regardless of variation in the density of the master 1. The timing where the density values of both parts are measured is fixed by detecting pulses generated successively when notches 3 and 4 of both parts pass.
Patent JP-S61283397-A (JP)
Title: Apparatus for scraping up pressure-floated concentrated sludge
Inventor: YONEDA MASANOSUKE
IPC: C02F11/12
Filed: 1985-06-05
Abstract: PURPOSE:To prevent the scattering of sludge or the generation of a malodor, by mounting a casing wherein conc. sludge is brought into communication with a suction port having sucking capacity and providing an eccentric rotor rotating in the casing. CONSTITUTION:When a truck 4 is run, the sludge 3 in an upper layer side is guided to a sludge introducing part 23 to be guided into a casing 20. Subsequently, an eccentric rotor 21 rotates and, when a rubber lining 31 is contacted with the underline part of the casing 20, an emitting port 27 is closed by an emitting port closing member 34 and, because a protruded end part 36 is contacted with the rubber lining 31, a hermetically closed space 44 holding a definite amount of sludge 3 is formed by the casing 20, the eccentric rotor 21 and the hermetically closed space forming member 37 of a change-over valve 33. When the eccentric rotor 21 is rotated, the sludge 3 in the hermetically closed space 44 is transferred upwardly and the volume of the hermetically closed space 44 is reduced to press the sludge 3. Then, the sludge 3 is sent toward the emitting port 27 under pressure.
Patent JP-H07317564-A (JP)
Title: Flameout preventive fuel pumping device
Inventor: BAANAADO JIEI BIJIYON
IPC: B64D37/20
Filed: 1995-05-22
Abstract: PURPOSE: To restrict flame-out or power descent in a fuel engine by providing an accumulating means accumulating vapor and fuel for delivering fuel to an engine, while minimizing the amount of undissolved vapor delivered to the engine, along a fuel transfer circuit on the delivery side of a fuel boost pump delivering fuel to the engine side. CONSTITUTION: A fuel pumping device 10 delivering aviation fuel from a fuel tank 12 to an aircraft engine is constituted of a fuel boost pump 16 interposed in a fuel transfer circuit 14 and an accumulator 20 accumulating fuel and vapor for delivering fuel to an engine while minimizing the amount of undissolved vapor delivered to the engine. The vapor storage part 34 of the accumulator 20 communicates with the sucking side of the boost pump 16 through a check valve 46 and a return line 40. The check valve 46 is closed if delivery pressure of the boost pump 16 drops markedly, thereby preventing vapor from being discharged from the accumulator 20 to the inlet of the boost pump 16.
Patent JP-S64422-A (JP)
Title: Device for checking operation of water level detecting end
Inventor: TANIGUCHI SHIN
IPC: G01F23/24
Filed: 1988-05-20
Abstract: PURPOSE: To check whether the operation of a water level detecting end at electrode bars is normal or not by bringing plural pieces of the electrode bars having different lengths into contact with liquid.  
     CONSTITUTION: Plural pieces of the electrode bars 2W5 having the different lengths are provided to this device and the device is so constituted that an on signal is emitted by the contact of the bottom ends of the respective electrode bars 2W5 and the liquid 1 and an off signal is emitted when there is no contact. Since the abrupt change of the water level cannot arise, the signal detection operation of the electrode bars is repeated at every short period and the signal detection state of the next point of the time are compared. Estimation is then made that the line of at least any one of the electrode bars is faulty if the signals of ≥2 pieces of the electrode bars change from on to off or from off to on. The operation conditions of the water level detecting end such as the failure in the detection of the water level by the deposition of scale on the electrode bars and the consequent insulation of the electrode bars and the defective operation by a short circuiting are thus checked. 
     COPYRIGHT: (C)1989,JPO&Japio
Patent JP-S61279371-A (JP)
Title: Welding method between pipes
Inventor: SUZUKI HIROSHI
IPC: B23K33/00
Filed: 1985-06-05
Abstract: PURPOSE:To prevent the exposition of an aperture onto the surface of the external appearance and to control the corrosion by facing the aperture formed on the first pipe to the end part aperture of the second pipe and by welding the peripheral wall of the first pipe and the aperture edge part of the second pipe. CONSTITUTION:One end 3a of arm pipe 3 is welded to the peripheral wall 2a of a pipe 2. The other end 3b and the peripheral wall 4a of a pivot pipe 4 are then welded by abutting the peripheral wall 4a of the pivot pipe 4 to the other end 3b with locating the hole 4c being pierced in advance so as to face to the other end aperture 3c of the arm pipe 3. In this case due to the air enclosed inside the arm pipe 3 communicating with the atmosphere via the hole 4c by the peripheral wall 2a of a wheel side pipe 2 and the peripheral wall 4a of the pivot pipe 4 there is no adverse effect on the welding zone even if the air be expanded by the heat at the welding time.
Patent JP-S6014160-A (JP)
Title: Method and device for continuous measurement of sulfur ion seed
Inventor: SATOU SHIROU
IPC: G01N27/416
Filed: 1983-07-05
Abstract: PURPOSE:To measure continuously the activity of a sulfur ion seed with good accuracy by conducting continuously a sample to a measuring cell without exposing the same to the air and determining pH, temp. and the potential difference between a sulfur ion selective electrode and a reference electrode and determining the activity of the sulfur ion seed from the data thereof. CONSTITUTION:A sample (sea water) is conducted continuously through a piping for drawing the sea water to a measuring cell 4 without being exposed to the air and is stirred by an ultrasonic wave oscillator 32. The pH value of the sample is detected with the pH electrode 14 of the cell 4 and is amplified by an amplifier 22 which outputs a pH signal SP. The temp. of the sample is detected with a thermocouple 16 and a temp. signal ST is outputted via a temp. detector 24. The potential difference between a sulfur ion selective electrode 18 and a reference electrode 20 is continuously determined by an amplifier 26 and the potential difference signal SV is outputted. A microcomputer 28 obtains and calculates the signals SP, ST and SV and determines continuously the activity of the sulfur ion seed.
Patent JP-S5246394-A (JP)
Title: Method for cutting of oxide crystal
Inventor: ENDOU WATARU
IPC: C01G1/02
Filed: 1975-10-09
Abstract: PURPOSE: To cut up oxide crystal like LiNbO 3 ,LiTaO 3 , which are utilized for piezoelectric oscillator and elastic surface wave delay line, by using the specified etchant. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S61280649-A (JP)
Title: Output circuit
Inventor: KURODA TADAHIRO
IPC: H03K17/08
Filed: 1985-06-05
Abstract: PURPOSE:To enhance strength against latching up of a semiconductor integrated circuit by a method wherein a parasitic bipolar transistors arranged in the neighborhood of impurity layers constructing the output circuits of the integrated circuit are connected to an electric power source. CONSTITUTION:A dummy P-type diffusion layer 21 and a dummy N-type diffusion layer 22 are provided coming close to the outside of a P-type diffusion layer 7 constructing a P-type FET 2 and an N-type diffusion layer 11 constructing an N-type FET 4 on an N-type semiconductor substrate 15, and connected to an electric power source to form parasitic transistor QLN.QLP. When a current is injected into an output terminal 5, the greater part of the current flows out to an electric power source VSS or VDD through the transistor QLP and a transistor Q6, and a latching-up generating current Itrig<(+)> is suppressed sharply. When a current is led out from the output terminal 5, the greater part of the led-out current IINJ<(-)> is supplied from the electric power source VSS or VDD through the transistor QLN and a transistor Q2, and only a part thereof flows to the substrate 15. Accordingly, potential of the substrate 15 is made hard to rise up, and strength against latching-up is improved sharply.
Patent JP-H10310047-A (JP)
Title: Master cylinder
Inventor: ARAKAWA HARUO
IPC: B60T11/20
Filed: 1997-05-13
Abstract: PROBLEM TO BE SOLVED: To prevent galling of a cup due to a guide and improve oil flowability from the guide to a pressure chamber by holding a cup for seal which is constituted of a ring-shaped guide and an annular elastic body on the inner peripheral surface of a housing and providing a chamfering part at the inner peripheral angular part on the cup adjacent side of the guide. SOLUTION: A housing 1 is provided with cups 13, 15 constituted of a pair of annular elastic bodies and a ring-shaped guide 14 held between both the cups 13, 15 on the inner peripheral surface. A round chamfering is performed for the inner peripheral angular part on the side of the cup 13 of the guide 14. When a primary piston 16 moves in a compression direction, the inner peripheral angular part of the cup 13 expands and deforms toward the inner peripheral angular part of the guide 14 due to influence of pressure oil from a pressure chamber 33. By the existence of the chamfering, the cup 13 does not bite in a gap between the inner peripheral surface of the guide 14 and the outer peripheral surface of the primary piston 16.  Further, oil flowability does not fluctuate even if the shaft direction location of a communicating hole 32 of the primary piston 16 slightly disperses by this chamfering.
Patent JP-H09288175-A (JP)
Title: Method for identifying airplane at airport surface
Inventor: NAKAMURA TOSHIO
IPC: G01S7/292
Filed: 1996-04-19
Abstract: PROBLEM TO BE SOLVED: To provide a method for detecting and displaying a position and an identification number of an airplane present on an airport surface, thereby identifying the airplane. SOLUTION: SSR(secondary surveillance radar) inquiry signals are regularly transmitted from a transmitting-receiving station 1 which fixes directive aerial beams to a monitoring area set at an entrance of a runway or the like. SSR response signals from an air plane are received. Target data including a position and an identification number of the airplane in the monitoring area are sent to a processing station 3. Similarly, SSR response signals are picked up at a receiving station 2 which fixes aerial beams to the monitoring area, and target data including the position and identification number of the airplane in the monitoring area are sent to the processing station 3. At the station 3, the position of the airplane is accurately determined from the target data.  The determined position is correlated to a position of the airplane detected by an ASDE(airport surface detection equipment) 4. An identification number is assigned to the airplane at the position detected by the ASDE 4, which is displayed at a display part 34.
Patent JP-S63287758-A (JP)
Title: Production of n-cyclohexanecarbonyl-d-alanine
Inventor: KIMIZUKA YOSHIYUKI
IPC: C07C233/63
Filed: 1987-05-19
Abstract: PURPOSE:To obtain the titled compound useful as a synthetic intermediate for pharmaceuticals, in high yield with extremely excellent operability, by reacting D-alanine with cyclohexane-carbonyl chloride in the presence of an alkali and a phase-transfer catalyst. CONSTITUTION:D-alanine is dissolved in an aqueous solution of an alkali (e.g. sodium hydroxide), a phase transfer catalyst of quaternary ammonium-type (e.g. benzyl tributyl ammonium chloride) is added to the solution and the reaction liquid is cooled to <=10 deg.C, preferably about 5 deg.C. Cyclohexanecarbonyl chloride and an aqueous solution of an alkali are dripped at the same time into the cooled reaction liquid to adjust the pH to 12-13.5 and to effect the reaction at room temperature to obtain the objective compound. The molar ratio of the cyclohexanecarbonyl chloride to D-alanine is slightly excess to 1 and the amount of the catalyst is >=0.5wt.%, preferably 2-5wt.% based on the cyclohexanecarbonyl chloride.
Patent JP-H05309740-A (JP)
Title: Manufacture of urethane resin composite molded piece
Inventor: KAWAMURA NOBUYUKI
IPC: B29L9/00
Filed: 1992-05-15
Abstract: PURPOSE:To adhere urethane resin to a resin molded piece with high adhesion by molding a urethane resin on the surface of a molded piece of epoxy denatured melamine resin. CONSTITUTION:A urethane resin is molded on the surface of a molded piece of epoxy denatured melamine resin. For the urethane resin, polyether type urethane resin and polyester type urethane resin can be used. It can also be molded as elastomer resin or foaming resin. The surface of the molded piece of the epoxy denatured melamine resin is coated or cast with urethane resin liquid for setting, so that a urethane resin composite molded piece made by molding and adhering the urethane resin on the surface of the molded piece can be obtained.
Patent JP-H06334869-A (JP)
Title: Data transposition device
Inventor: KISHIOKA TOSHIKI
IPC: H04N19/60
Filed: 1993-05-25
Abstract: PURPOSE:To execute data conversion quickly by providing plural registers to a data input terminal, converting inputted serial data into parallel data and writing parallel data in a memory for one cycle. CONSTITUTION:Input serial data are converted into parallel data by two picture elements at registers 101, 102 and then the parallel data are written in register files 103-106 to replace arrangement of data. At first a read/write control section 109 provides an output of a control signal to each of files 103-109 to set a write enable state and data are stored in an address Aij designated by an address signal from an address decoder 107. Then the control section 109 outputs a control signal to the files 103-106 to set a read enable state and data of an address corresponding to the address signal Aij from the decoder 107 are outputted to a succeeding register 110. The parallel data outputted to the register 110 are converted into serial data by an MUX 111.
Patent JP-H06334978-A (JP)
Title: Decoder system
Inventor: BUN CHIYUN SEN
IPC: H04N19/00
Filed: 1993-05-25
Abstract: PURPOSE:To operate decoders independently of one another to simultaneously decode and reproduce pictures of plural different channels by eliminating coupling between hierarchies by a changeover switch in a hierarchical decoder system. CONSTITUTION:External multiplexed picture data is inputted to a demultiplexer 10 and is separated into first and second encoded picture data. The first encoded picture data is decoded by a first decoder 5 to output a first reproduced picture. The output of the first decoder 5 is connected to an up sampling device 7 through a changeover switch 8, and its output is connected to the input of a second decoder 6. When the changeover switch 8 is closed, the first reproduced picture is converted to a second reproduced picture by the up sampling device 7. The second encoded picture data and the second reproduced picture are decoded by the second decoder 6 to restore and output a third reproduced picture.