baber/WOPTO huggingface dataset:
Patent JP-S63100630-A (JP)
Title: Optical pick-up
Inventor: SUNAKAWA HIROSHI
IPC: G02B6/12
Filed: 1986-10-16
Abstract: PURPOSE:To increase a combining strength of a guided wave path and a detecting device, to arrange the detecting device on a monolithic substrate and to decrease the cost of a pick-up by detecting the return light from optical recording media with a photodetector loaded onto an optically wave guide path. CONSTITUTION:At a substrate 21 of an optical pick-up head 20, an optical wave guide path 22 is formed, and to one edge 22a of the wave guide path 22, a laser beam 24 is made incident from a semiconductor laser 23. The beam 24 is made incident through a beam splitter 26 to a convergent diffraction grating in parallel. A return light 24 from an optical disk 40 is photodetected by a photodetector 31 from the splitter 26 and supplied to a reading circuit. The photodetector 31 is formed at the guided wave path 22 on the substrate 21 and on both surfaces of a photoconductivity material 31b, electrodes 31a and 31b are arranged. The combining strength of the guided wave path 22 and the photodetector 31 is increased, the constitution of a head 10 is made simple and the cost of the optical pick-up is decreased.
Patent JP-2000070160-A (JP)
Title: Method for packing liquid of commercially available pet bottle in heat insulating container, and heat insulating container
Inventor: ODAJIMA TOSHIO
IPC: A47J41/02
Filed: 1998-08-31
Abstract: PROBLEM TO BE SOLVED: To easily and surely identify the kind of a liquid which is packed in a heat insulating container by using the lid of a commercially available PET bottle by a method wherein when the liquid of the PET bottle is packed in the container, a cap of the PET bottle is removed, and the cap is attached to the heat insulating container, and is used as a lid. SOLUTION: A cap 3 of a commercially available PET bottle 7 is removed in advance, and the contained liquid is packed in a heat insulating container 1 from a liquid injection port 4 for which a transparent lid 6 and a internal lid 5 have been removed. Then, the internal lid 5 is attached to the container 1, and also, the cap 3 which has been removed from the PET bottle 7 in advance, is attached as a lid for a liquid discharging port 2, and at the same time, the transparent lid 6 is attached. When the liquid in the container 1 is drunk, first, the transparent lid 6 is removed, and after the lid (cap 3) is removed as well, mouth is placed to the liquid discharging port 2, and the liquid is directly drunk.  By this constitution, the kind of the liquid which is packed in the container 1 can be easily and surely identified by using the cap 3 of the commercial PET bottle 7 which is attached as a lid to the liquid discharging port 2.
Patent JP-H0696990-A (JP)
Title: Production of multilayer ceramic chip component
Inventor: KURODA SHOJI
IPC: H01G4/12
Filed: 1992-09-16
Abstract: PURPOSE:To mass produce highly accurate multilayer ceramic chip components with high yield at low cost. CONSTITUTION:A method for producing a multilayer ceramic chip component comprises step for forming a green block 1 and then burning the green block 1, step for making a V-groove 7 at least in one surface of the burnt green block 6, step for cutting the burnt green block 6 into chip bars 8, step for forming an external electrode 5 on the chip bar 8 thus obtained, and step for cutting the chip bar 8 into chips 4.
Patent JP-H0588427-A (JP)
Title: Image forming device
Inventor: HASEGAWA MAKOTO
IPC: G03G15/00
Filed: 1991-09-25
Abstract: PURPOSE:To suppress the enlargement and complication of a device capable of synthetic copying and double-sided copying by positively and reversely rotating a developing roller in accordance with the rotating direction of a sensitive body, and rotating an attracting means for attracting toner to the developing roller according to the positive and reverse rotations. CONSTITUTION:A developer in a developing device 208 is circulated in the developing device 208 by stirring paddles 211A, 211B and a stirring roller 210, and carried to a developing roller 209. The stirring roller 210 is provided with a magnet, and attracts and carries the developer on the developing roller 209 after development to the upper part of the developer 208. When the toner density becomes low, a toner supply clutch is on, and an agitator 214 and a toner supply roller 213 are rotated to carry the toner to the developing part. In conformation to a positively and reversely rotatable photosensitive belt, the developing roller 290, the stirring paddles 211A, 211B and stirring roller 21 interlocking thererto, the agitator 214 of a toner hopper part, and the toner supply roller 213 are also positively and reversely rotatable.
Patent JP-H0984726-A (JP)
Title: Vacuum cleaner
Inventor: NISHIZAWA MITSURU
IPC: A47L9/00
Filed: 1995-09-25
Abstract: PROBLEM TO BE SOLVED: To prevent dust from being flung up into the air by the exhaust air by inclining an exhaust hole, which is formed on a cleaner main body, communicates with a dust chamber, and discharges the exhaust air of an electric fan to the outside, upward at a proper angle. SOLUTION: The exhaust air from an exhaust port 5 is guided by many horizontal ribs 6 inclined slantly upward, it is discharged slantly upward, and the dust accumulated on the surface to be cleaned is prevented from being flung up. The angle of the horizontal ribs 6 of the exhaust port 5 against the horizontal plane is set to 10-45 deg.. If the angle is 10 deg. or below, the dust accumulated on the surface to be cleaned might be flung up by the exhaust air from the exhaust port 5 when the front of a cleaner main body 1 is vertically moved and floated while the cleaner main body 1 is moved during the cleaning operation. The angle of the horizontal ribs 6 against the horizontal plane must be 10 deg. or above.  If the angle is 45 deg. or above, the horizontal ribs 6 give resistance to the exhaust air, the exhaust efficiency is reduced, and such problems occur as a decrease of the suction power and an increase of noises.
Patent JP-2000074325-A (JP)
Title: Ceramic radiant tube burner fixing unit and burner device using the same
Inventor: ISEDA YOSHIHISA
IPC: F23D14/12
Filed: 1998-08-31
Abstract: PROBLEM TO BE SOLVED: To prevent a so-called crack of a ceramic radiant tube burner without large stress by eliminating obstruction of a deformation due to a thermal stress by a slide movable part. SOLUTION: The ceramic radiant tube burner fixing unit is fixedly pressed by providing a flared tapered part 2 at a periphery of one end of a ceramic radiant tube burner 1, bringing a metal jig 3 into contact with the part 2, and interposing it between a furnace wall 5 and a fixing member 4. Thus, since a deformation by a thermal stress is not obstructed mainly by a slide movable part 6, no large stress is generated, and a so-called crack of the burner can be prevented. The fixing unit is mounted at various type burner unit.
Patent JP-H0557178-A (JP)
Title: Continuous production of microcapsule
Inventor: NAGANO HIDEO
IPC: B01J13/16
Filed: 1991-09-02
Abstract: PURPOSE:To efficiently produce a microcapsule having excellent characteristics without requiring a time in a temp. rise for reaction by continuously emulsifying a liquid mixture of an oily solution containing a capsule core substance and polyisocyanate with an aqueous solution at specific temp. and adding polyvalent amine and hot water to the resulting emulsion to perform wall film treatment. CONSTITUTION:A liquid mixture of an oily solution containing a capsule core substance and polyisocyanate and an aqueous solution are continuously emulsified at temp. of 50 deg.C or higher and polyvalent amine and concn. adjusting water of 50 deg.C or higher are added to the obtained emulsion to be mixed therewith by a static mixer 12. The mixed emulsion is further allowed to continuously flow from the lower part of an encapsulating device 13 to the upper part thereof to be stagnated and held in said device 13 for 60min on an average and subsequently allowed to overflow to obtain a microcapsule. As a result, reaction temperature is reached quickly enough to prevent the deterioration of heat resistance and solvent resistance. Therefore, the concn. of a colorant is enhanced, the adhesion of the microcapsule to a tank at the time of reaction is eliminated, a cleaning time is reduced, and the microcapsule having excellent characteristics is efficiently produced.
Patent JP-H03111579-A (JP)
Title: Method for hardening ceramic film
Inventor: OTANI SABURO
IPC: C23C20/06
Filed: 1989-09-25
Abstract: PURPOSE:To increase the degree of filling of Cr2O3 at every repetition and to obtain a dense and high hardness film with minimal number of repetition times by adding and dissolving specific amounts of metallic powders of Al, V, and Zr into a chromic acid at the time of repeating a stage in which a film is impregnated with chromic acid and heated and carrying out hardening. CONSTITUTION:A stage in which chromic acid is impregnated into a porous ceramic film and then heated in the range 400 to 600 deg.C to undergo conversion into chromium oxide is repeated, by which the film is hardened. In the above method, a metallic powder of one or more elements among Al, V, and Zr is add and dissolved by 0.2-3.0% by weight into the chromic acid before impregnation. By this method, the ceramic film increased in the degree of denseness as compared with the conventional film impregnated with saturated chromic acid solution and, as a result, improved in hardness and excellent in wear resistance and thermal shock resistance can be obtained with minimal number of impregnation-burning times.
Patent JP-H0697881-A (JP)
Title: Channel assigning method for repeater station
Inventor: MATSUZAWA HIROSHI
IPC: H04B7/26
Filed: 1992-09-16
Abstract: PURPOSE:To surely repeat a link at the time when a repeater station of the link destination and a repeater station which accepts a call have a common idle channel with respect to the assignment method of link repeating speech channels to repeater stations in the area anti-disaster radio system. CONSTITUTION:The repeater station which-accepts a call discriminates whether there are idle channels in speech channels of the station itself or not (step 11); and if there are idle channels, a call signal having a channel designating code which designates all of these idle channels as assignment candidate channels is transmitted to the repeater station of the link destination (step 12). A response signal ACK having a channel designating code which indicates an assigned channel selected from candidate channels is transmitted from the repeater station of the link destination and is received by the repeater station which accepts the call (step 13), and this assigned channel is reported to an originating station (step 15).
Patent JP-H1182089-A (JP)
Title: Vehicular power train protective device
Inventor: KUSUKAWA HIROTAKA
IPC: F02D41/22
Filed: 1997-09-11
Abstract: PROBLEM TO BE SOLVED: To protect a power train against excessive loads continuously inputted thereinto. SOLUTION: A transfer 3 and a rear final drive 4 are mounted on their casings with oil temperature switches 8 and 9, which are adapted to make the circuits on detection of an oil temperature of or above a preset temperature. These switches 8 and 9 are connected to an oil temperature control unit 11, which finds that the oil is overheated and then outputs an overheat signal to a fuel-cut control unit 12 if input signals or supply voltages are fed thereto from the switches 8 and 9 continuously for a predetermined period. Upon receiving an overheat signal from the oil temperature control unit 11, the fuel-cut control unit 12 executes its fuel-cut control to stop the fuel injection of an injector 14 temporarily.
Patent JP-H04246982-A (JP)
Title: Method of correcting measurement of optical density formed onto x-ray film
Inventor: MISHIERU GURIMOO
IPC: G06T5/50
Filed: 1991-08-31
Abstract: PURPOSE: To exclude an adverse influence resulted from the non-linearity of the characteristic curve of the sensitivity of a film. CONSTITUTION: The optical concentration of a picture indicated by an X-ray photograph 6 is detected by a photodetector 8. A signal DO outputted from the photodetector 8 is a timely changing signal as the function of the inspection of the line of an image, and it is digitized by an analog/digital converter 9. A processing operation to be executed to a digital signal outputted by the analog/digital converter 9 is executed by computers 35-37 which process digitized information coded into a binary. In this case, the harmful action of the linear defect of the characteristic curve of the sensitivity of an X-ray photographic film used for the X-ray photograph 6 can be corrected by statistically investigating a picture noise.
Patent JP-H03108532-A (JP)
Title: Copper-clad laminate
Inventor: MINAMI KOJI
IPC: H05K3/32
Filed: 1989-09-22
Abstract: PURPOSE:To form a conductive path in an insulating layer without plating by disposing a copper foil to a metallic piece fitted into a through-hole shaped to the insulating layer and the surface of the insulating layer through a conductive layer. CONSTITUTION:A copper-clad laminate is composed of a through-hole 3 formed to an insulating layer l and a metallic piece 4 fitted into the through-hole 3, and a copper foil 2 is arranged to the metallic piece 4 fitted into the through- hole 3 of the insulating layer 1 and the surface of the insulating layer 1 by utilizing the adhesive properties of a conductive layer 5 through the conductive layer shaped by curing adhesives having conductivity. A conductive path can be formed in the insulating layer 1 of the copper-clad laminate without plating by using such a copper-clad laminate, and a printed wiring board can be manufactured.
Patent JP-H03111311-A (JP)
Title: Rotary type collecting device
Inventor: TSUJIMOTO MASANORI
IPC: B65G1/127
Filed: 1989-09-22
Abstract: PURPOSE:To facilitate collecting operations by providing rotary shelves for every picking place to read the order number of carried-in loads and to pick the loads on the rotary shelves, and collecting the loads of the same number to carrying-outlets when picking operations of the loads of the same order number of all the picking places are completed. CONSTITUTION:Based on an offered picking list, loads are picked on each picking place and carried to respective carrying-inlets 2A-2B, and loaded into buckets 29 after bar codes on the picking list are read. At the same time as the loading operations are completed, a completion switch (not shown in the figure) is operated. By this operation signal, all picking places where carrying-in is completed for every order number are stored in controllers of vertical rotary shelves 3A-3C. Further, when all picking operations are completed for the same order number, the buckets 29 of all the rotary shelves 3A-3C are driven to move and collect the loads to carrying-outlets 1A-1C. The collecting operations can thus be made easier.
Patent JP-H07107023-A (JP)
Title: Phase monitor for infinite phase shifter
Inventor: NAKAMURA SHIZUHITO
IPC: H04B7/08
Filed: 1993-10-04
Abstract: PURPOSE:To provide the phase monitor of an infinite phase shifter capable of evading erroneous judgement in the states of any phase differences by detecting the change amount of the phase difference between plural input signals and inverting the polarity of a voltage corresponding to a phase shift amount change speed. CONSTITUTION:The rotation speed detection means 50 of the phase monitor 1 inputs phase shift amount instruction signals outputted by an infinite phase shifter control part 30 and outputs the voltage corresponding to the change speed of the phase shift amount instruction signals. A polarity inversion means 70 inverts the polarity of the voltage outputted by the means 50, an output selection means 80 selects and outputs the output voltage value of the means 50 or the output voltage value of the means 70 based on rotation direction instruction signals generated by the means 30 and a voltage display means 90 displays the voltage value outputted by the means 80 including the polarity. By the constitution, the pointer of the means 90 can cope with inverse direction display as well, the advance and delay of a sub side phase to a main side phase can be displayed by a direction indicated by the pointer and the change state of the phase difference can be displayed by the size of the deflection of the pointer.
Patent JP-H04126539-A (JP)
Title: Production of inorganic sphered particles
Inventor: FUJIBAYASHI TERUO
IPC: B01J2/16
Filed: 1990-09-19
Abstract: PURPOSE:To efficiently produce high purity inorg. sphered particles by burning fuel with less than the theoretical amt. of oxygen required in a burner set in a furnace and blowing combustion improving gas from inlets provided on the furnace. CONSTITUTION:A high temp. flame is formed by combustion with a burner 1 set in a furnace 2 and inorg. powdery starting material is jetted into the flame, melted and sphered. At this time, fuel is burned with less than the theoretical amt. of oxygen required in the burner 1 and combustion improving gas is blown from inlets 6 provided on the furnace 2. The rate of sphering can be increased or the starting material can be melted with a reduced amt. of gaseous fuel and high purity inorg. sphered particles can produced.
Patent JP-S6490415-A (JP)
Title: Electro-optical element
Inventor: MIYAZAKI REI
IPC: G02F1/139
Filed: 1987-09-30
Abstract: PURPOSE:To stably obtain an electro-optical element having an excellent characteristic and to improve the productivity by constituting said element so that an angle of torsion prescribed by adding an optical active substance to a liquid crystal is within a specific range against an angle of torsion prescribed by its base substance orientation processing. CONSTITUTION:An electro-optical element constituted by inserting and holding a liquid crystal cell 106 for executing a display in a selective voltage applied state and a liquid crystal cell (upper cell) 102 being an optical anisotropic body by a pair of polarization plates 101, 110 is constituted so that an angle of torsion Dc prescribed by adding an optical active substance to a nematic liquid crystal is within a range of -28.5% and +66.5% against an angle of torsion Ds prescribed by a fundamental orientation processing. In the display cell 106 and the liquid crystal cell 102 being an optical anisotropic body, the direction in which a liquid crystal molecule is twisted from up to down is reverse. In such a way, by determining accurately the allowable range of the consistency to Ds of Dc, the electro-optical element having an excellent characteristic is obtained stably and the productivity can be raised.
Patent JP-H0296598-A (JP)
Title: Lymphokine-activating killer cell induction suppressing factor laksf, its production and immunosuppressing agent containing the same factor as active component
Inventor: SONE SABURO
IPC: A61P37/06
Filed: 1988-10-03
Abstract: NEW MATERIAL:Lymphokine-activating killer cell induction suppressing factor LAKSF having a molecular weight of 68000+ or -5000 and an isoelectric point of pH6.8+ or -0.5. USE:An immunosuppressing agent. PREPARATION:LAKSF can be produced e.g., by collecting peripheral blood of normal person, separating monocyte in high purity by continuous centrifugal separation, culturing the cell at 37 deg.C for 16hr in a medium containing E.coli- originated lipopolysaccharide as a stimulator, removing the monocyte by centrifugal separation, filtering and sterilizing the liquid with a membrane filter having a pore diameter of 0.45mum, concentrating the obtained crude LAKSF with an ultrafiltration membrane, passing through a column packed with crosslinked dextran gel to effect the fractionation and purifying the objective fraction by ultrafiltration and high-performance liquid chromatography.
Patent JP-H04126235-A (JP)
Title: Vehicular highly corrosion-resistant steel plate treated differently on front and rear surface
Inventor: UNNO SHIGERU
IPC: B32B15/08
Filed: 1990-09-18
Abstract: PURPOSE:To obtain excellent film adhesion and corrosion resistance by a method wherein Zn-Co-Cr-Al2O3-based dispersion plating is applied to the outer surface side of the steel plate concerned and chromate film and organic resin treatment is applied to Zn-based plating, which is applied to the inner surface side of said plate as ground. CONSTITUTION:Zn-Co-Cr-Al2O3-based composite electroplating containing 0.1-10wt.% in total Co content of metal Co and Co oxide, 0.05-5wt.% in total Cr content of Cr oxide and Cr hydroxide, 0.05-8wt.% in total Al content of Al hydroxide and remainder of Zn is applied on one side of the steel plate by the deposit thickness of 20-60g/m<2>. Further, on the other side of said steel plate, Zn-based plating is applied by the deposit thickness of 20-50g/m<2>. After that, chromate film having the deposit thickness of 5-500mg/m<2> expressed in terms of Cr is provided on the Zn-based plating. Furthermore, resin composition in the form of solid film prepared by blending 10-150 pts.wt. of silica with 100 pts.wt. of modified epoxy resin, which is produced by adding dialkanolamine to urethane-modified epoxyresin prepared by reacting isocyanate compound with epichlorohydri-bisphenol A epoxy resin, is formed on the chromate film by the film build-up of 0.3-4.0g/m<2>.
Patent JP-2000077780-A (JP)
Title: Semiconductor laser and manufacture thereof
Inventor: SAKATA YASUTAKA
IPC: H01S5/00
Filed: 1998-09-02
Abstract: PROBLEM TO BE SOLVED: To enable a semiconductor laser to be lessened in threshold value by a method wherein the semiconductor laser is equipped with an active layer sandwiched in between an upper and a lower clad layer in an optical waveguide, and a DC-PBH structure inserted in a current block layer is provided with a recombination layer that is different from the active layer in composition and layer structure and formed through a design/manufacturing process different from that of the active layer. SOLUTION: An InGaAsP recombination layer 2 and a P-InP layer 3 are grown on all the upper surface of an N-InP substrate 1 through an organic metal vapor growth method. In succession, a pair of SiO2 striped masks 4 are patterned in a [011] direction. The P-InP layer 3 and the InGaAsP recombination layer 2 are selectively removed by etching using the masks 4 as a selective etching mask. Then, using the pair of SiO2 masks 4 as a selective growth mask, an optical waveguide structure that comprises an N-InP layer 6 and an MQW active layer 5 is formed through an MOVPE selective growth method, where the MQW active layer 5 is formed through a manner that well layers where compressive strain is introduced and barriers are cyclically laminated 6 times.  By this setup, a semiconductor laser of this constitution has a low threshold value and is capable of operating efficiently at a high temperature of 85 deg.C.
Patent JP-S61126959-A (JP)
Title: Joining method of metallic member
Inventor: NATSUME TOSHIO
IPC: B23K1/00
Filed: 1984-11-24
Abstract: PURPOSE:To improve the joined strength and joined accuracy of metallic members, by pressing the metallic members which are put together by their end faces with metallic super-fine powder and flux between the end faces and melting the metallic powder by supplying electricity across the end faces. CONSTITUTION:A pressing cylinder 4 is provided to an upper plate 3 and, at the same time, a pressing plate 6 which presses a metallic member 5 is fixed to the lower end of the piston rod 4a of a cylinder 4. Metallic members 5 and 7 to be joined together are pressed by the cylinder 4 after the mixture 12 of metallic super fine-powder having a means particle diameter of about 50Angstrom  and ceramics are put between the metallic members 5 and 7. Under this condition, electricity is passed across the members 5 and 7 from a welding power source 11 through clamps 9 and 10 and the mixture 12 is heated. When the mixture 12 is heated a flux is melted and cleans the joining and faces of the metallic members 5 and 7 and the melted metallic powder strongly joins the members 5 and 7. When such a joining method is applied, the joined accuracy and strength can be improved.