baber/WOPTO huggingface dataset:
Patent JP-S63147139-A (JP)
Title: Optical directional coupler and its manufacture
Inventor: WAKITA KOICHI
IPC: G02B6/12
Filed: 1986-12-11
Abstract: PURPOSE:To perform optical switch efficiently at a high speed with a low voltage by applying an electric field to an active layer sandwiched between a (p) and an (n) type clad layer among plural active layers consisting of quantum well structure and changing a light radio wave function, and guiding light to other active layers. CONSTITUTION:A 1st electrode 30 is arranged on one main surface of a semiconductor substrate 2, a 2nd electrode 31 is arranged on a 2nd clad layer 28, and an optical waveguide is limited to at least two active layers 25 and 27 according to a voltage applied to between those electrodes. Then, light incident on the optical waveguide is changed so that it is guided in either active layer. Further, plural grooves 32 are arranged in the 2nd electrode 31 and 2nd clad layer 28 so that length determined in the traveling direction of the light by the wavelength of the light, the refractive index of the active layers, and the electric field effect of the refractive index corresponds to one cycle. Therefore, when the light is incident in parallel to the quantum well structure, the coupling length of the light can be made longer than that of vertical incidence. Consequently, optical modulation and optical switching are performed efficiently at a high speed.
Patent JP-S62156582-A (JP)
Title: Detecting device for corona discharge
Inventor: TAKEDA HIROYA
IPC: G01R31/34
Filed: 1985-12-28
Abstract: PURPOSE:To detect in a short time a coil of a remarkably deterioration, to which an insulation repair becomes necessary, by connecting a resonator whose resonance point is variable, to the rear of an electromagnetic probe so that it can be matched with a frequency characteristic of a corona pulse. CONSTITUTION:An electromagnetic probe 1 is formed by winding a magnet wire 1b to a circular arc-shaped magnetic material core 1a. The magnet wire 1b is connected to a resonator 14 by a coaxial cable 2 whose outside has been grounded and a pulse signal is set to an optional resonance frequency, inputted to an attenuator 3, and attenuated to a suitable magnitude. Thereafter, a pulse signal is amplified by an amplifier 4, and detected and rectified by a detecting rectifier 5. The pulse signal which has been detected and rectified is compared with an integral output of an integrator 8 by a comparator 6, and in case when the pulse signal is larger, a step voltage is applied to the integrator 8 through a monostable multivibrator 7 and an indication is executed by an indicating instrument 9. The magnetic material core 1a of the electromagnetic probe 1 is made to contact both teeth parts 13 for placing a slot 10 between them, and spread over a coil 11 through a wedge 12.
Patent JP-S62156371-A (JP)
Inventor: KUTSUKAKE MASAKI
IPC: B41M5/388
Filed: 1985-12-28
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-2000118127-A (JP)
Title: Ink jet recording sheet
Inventor: YASUI KOICHI
IPC: B32B27/00
Filed: 1998-10-15
Abstract: PROBLEM TO BE SOLVED: To enhance a printing density and to improve transparency of an ink receptive layer by providing the receptive layer containing an aqueous resin and a urea at least on one surface of a support. SOLUTION: An aqueous resins used for an ink receptive layer are largely classified into a water soluble resin and a water dispersible resin. As the soluble resin, it is not particlarly limited, but a polyvinyl pyrrolidone, a polyvinyl alcohol, a polyvinyl alcohol and the like containing a modified polyvinyl alcohol are used. As the dispersible resin, a water emulsion resin or the like obtained by adding an emulsifier to a high molecular polymer resin in a water medium and polymerizing them is used. When both are compared, the soluble resin having larger ink absorption capacity is scarcely stained to obtain a clear image. A blending pts.wt. of an urea is preferably about 90/5 to 80/20 of the aqueous resin/urea is good. If the blending amount of the urea is less than 1 pt.wt., desired effect is not obtained. If it is more than 25 pts.wt., there is a fear of reducing ink dryability.
Patent JP-2000120494-A (JP)
Title: Evapotranspiration fuel treating device
Inventor: TAKAHASHI JUN
IPC: B60K15/04
Filed: 1998-10-15
Abstract: PROBLEM TO BE SOLVED: To provide an evapotranspiration fuel treating device capable of eliminating a diaphragm, eliminating a pressure introducing passage communicating a control valve with a fuel feeding pipe to lower costs, and of preventing the occurrence of excessive refueling. SOLUTION: A shut-off valve 18 and a roll-over valve 20 are provided for a fuel tank. A vent passage formed in the shut-off valve is connected with a canister 40 by way of an exhaust passage. The vent passage of the shut-off valve is communicated with the roll-over valve by way of a connection pipe. A check valve 68 to be opened by the specified difference in pressure, is interposed between the vent passage and the connection pipe. The check valve is so designed as to open both the connection pipe and the vent passage when pressure at the connection pipe side becomes higher than a specified value. By this constitution, since both the roll-over valve and the vent passage are closed when the tank is full of fuel, excessive refueling will never be made even if refueling is done additionally.
Patent JP-H04171175-A (JP)
Title: Automatic measuring of grinding wheel diameter
Inventor: KARITA SHIGETOMI
IPC: B24B49/18
Filed: 1990-11-01
Abstract: PURPOSE:To shorten measuring time and improve work efficiency by contact- measuring any one point on the outer diameters of a reference portion and a truing grinding wheel by means of a measuring touch sensor and performing calculation processing for the correction amount for the grinding wheel diameter within an NC device. CONSTITUTION:Data of a reference diameter portion for measuring provided at the end of a grinding wheel shaft are stored in a memory in advance as information of automatic measurement correction software. After dressing or truing with a grinding wheel 4, measurements are made at a point of the outer diameter of the grinding wheel by the contact with a measurement touch sensor 2 and a point on the outer reference diameter of a grinding wheel. From the difference between the grinding wheel shaft reference diameter stored in advance in the memory and the actual measurements, the actual value of the grinding wheel outer diameter is calculated and corresponding tool diameter correction memory is revised. As a result, measurement time is drastically shortened, and limitation on the working area is minimized so that the top surface of a table 1 is effectively used.
Patent JP-S63152846-A (JP)
Title: Mass filter
Inventor: SUCHIYUAATO HANSEN
IPC: G01N27/62
Filed: 1987-11-19
Abstract: PURPOSE:To obtain a mass filter having advantages in a dimension, capacity, and reliability without the sacrifice of a performance of an aged metal quadrupole mass filter by providing an elongated tube substrate provided with plural longitudinal pieces having a recessed inner side surface, a joint means connecting an adjoining pair of the longitudinal pieces apart at given intervals, and plural conductive strips installed in the recessed inner side surface of the longitudinal pieces. CONSTITUTION:A quarts substrate 13 gives a base shape and a structural rigidity to a quadrupole 11, and a conductive strip 15 acts as an electrode when an electric field is applied to the inside of the quadrupole 11. A low conductive strip 17 minimizes a nonideal characteristic in a desired electric field. The conductive strip 15 is arranged along a recessed hyperbola part 19, on the other hand, the low conductive strip 17 is arranged along a middle cusp 21. The low conductive strip 17 is preferably overlapped with an end part 23 to which the conductive strip 15 adjoins and extending in a longitudinal direction. An ion source and an ion detector are arranged to aperture parts 25 and 27 in the opposite side to a quartz substrate 13.
Patent JP-H08153470-A (JP)
Title: Protective film of gas discharge panel and method for forming it
Inventor: KOIWA ICHIRO
IPC: H01J11/38
Filed: 1994-11-29
Abstract: PURPOSE: To achieve high luminance and high efficiency while restraining the discharge voltage to a lower value, by constituting a protective film by a first protective film composed of a first burning body as first oxide and a second protective film composed of a second burning body including powder of second oxide and third oxide. CONSTITUTION: A protective film 17 in a panel has a two-layer structure composed of a first protective film 17a and a second protective film 17b, the first protective 17a is provided on the lower layer side as a dielectric layer 15 side, and the second protective film 17b is provided on the protective film 17a. Since MgO in the second protective film 17b partially exist near the front surface, the deviation of MgO in the whole protective film 17 can be restrained through the first protective film 17a on which there is the existing range of MgO, having the remarkable deviation, and the stable property of the protective film can be obtained. Moreover, low voltage, low current and high efficiency can be simultaneously achieved through the protective film 17a excellent in restraining of discharge voltage.
Patent JP-H01135084-A (JP)
Title: Optical output controlling circuit for semiconductor laser
Inventor: KITACHI NISHIMINE
IPC: H04B10/07
Filed: 1987-11-20
Abstract: PURPOSE:To obtain a predetermined optical output of laser irrespective of temperature change by removing a DC component from the optical current output of a photodetector by AC coupling means, removing a dark current, providing a peak holding circuit, reproducing a DC component removed by the AC coupling means, and driving an operational amplifier. CONSTITUTION:If the optical output of a semiconductor laser 1 is small, the optical current of a photodetector 2 is reduced, the output amplitude of a transformer impedance amplifier 5 is thereby reduced, and the output voltage of a peak holding circuit 11 is reduced. An operational amplifier 12 so operates as to reduce its voltage upon increase of the circuit 11. Accordingly, a transistor 7 is so operated as to increase the bias current of the laser 1 thereby to increase the optical output of the laser 1, thereby returning the optical current of the photodetector 2 to the value before it is reduced. Accordingly, even when the dark current of the photodetector 2 is increased due to a temperature rise, since the DC component corresponding to the dark current can be cut off, the optical output of the laser can be maintained constant without influence of the dark current.
Patent JP-H04166942-A (JP)
Title: Damping water-free plate for lithography
Inventor: TAMURA KAZUTAKA
IPC: G03F7/00
Filed: 1990-10-31
Abstract: PURPOSE:To obtain a damping water-free plate for lithography which can be easily developed and whose printing resistance is enhanced by using as a silicone rubber layer such one as being bridged by a silane compound having groups that can be condensed with hydroxide group, and putting in a photosensitive layer a polymer which contains hydroxide groups in its side chain. CONSTITUTION:Silicon rubber used in the silicone rubber layer of a damp water-free plate for lithography is normally and desirably such one that is obtained when a linear polysiloxane of molecular weight several to several hundred thousands having hydroxide groups at both ends as indicated by the formula is bridged by a silane compound and formed into rubber, the silane compound having at least three groups that can be condensed with the hydroxide groups. There is no restriction in selecting a copolymer which is used in a photosensitive layer and which contains hydroxide group in its side chain, only if it allows transmission of a sufficient amount of light with the same photosensitive wavelength as a photosensitive group contained in the photosensitive layer and can be made to undergo a condensation reaction with the silane compound in the silicone rubber layer, and polymers of ethylene unsaturated compounds, polyurethane, polyester, polyamide and the like can be mentioned as examples of main chain structures. The side chain containing hydroxide group is normally the hydroxide group itself or an unary organic group having at least one hydroxide group.
Patent JP-H01166756-A (JP)
Title: Production of implantable expansible silicone reservoir
Inventor: JIYON RATSUSERU DEIIN GEIJIYAA
IPC: A61L27/00
Filed: 1988-11-24
Abstract: PURPOSE: To obtain an implantable silicone reservoir, by applying a masking material between two layers of silicone elastomer, expanding the two layers, and adding a coated area to non-adhesivity by the layers. CONSTITUTION: A surface portion of an at least partially uncured primary silicone elastomer layer is coated with a masking material selected from a group comprising of a silicone materials easily unsoluble to the silicone elastomer such as uncurable fluorosilicone compositions and curable fluorosilicone compositions. An at least partially uncured secondary silicone elastomer layer on contacting with the surface of the primary layer is arranged. The covered primary and secondary layers are cured under their contacting states and a reservoir is supplied between the layers closed by the sealed surroundings to produce an implantable expandable reservoir.  A preferable silicone elastomer is curable composition through an addition of ≡SiH to CH2=CHSi≡ under presence of a catalyst, such as curable composition by crosslinking of a peroxide curable elastomer compositions through their free radicals.
Patent JP-2001114487-A (JP)
Title: Elevator
Inventor: ARAHORI NOBORU
IPC: B66B11/08
Filed: 1999-10-18
Abstract: PROBLEM TO BE SOLVED: To provide an elevator capable of reducing the working noise of a brake and minimizing a control circuit of a brake. SOLUTION: The control circuit of a brake comprises an AC power source for braking, a rectification bridge connected to the AC power source for braking to convert the alternate current into the direct current, a brake coil connected to a DC side of the rectification bridge, a contact of a contactor for brake mounted at an AC side of the rectification bridge and a resistor mounted at a DC side of the rectification bridge.
Patent JP-H03160187-A (JP)
Title: Rotary compressor
Inventor: KOMINE KENJI
IPC: F16C3/00
Filed: 1989-11-15
Abstract: PURPOSE:To prevent the fall out of a spherical black lead portion and wear against the opposite member, by forming a compressor sliding member out of spherical black lead cast iron, and also removing black lead in the vicinity of its surface by sputtering, and then administering an ion nitriding treatment on this surface, and forming a nitriding layer. CONSTITUTION:A sliding member 20 which forms respectively a shaft 6 or a crank 7 that slide, at the main bearing 9 and sub bearing 10 of a rotary compressor 1, is first formed into a desired shape by using spherical black lead cast iron 21. Next, a predetermined voltage is added into the inside of a direct current plasma device in a hydrogen atmosphere having a predetermined pressure, and a reducing sputtering treatment is administered to the sliding member 20 so that black lead 25 at the surface layer of the spherical black lead cast iron 21 is removed. And then the sliding member 20 is heated to a predetermined temperature in a predetermined pressure ammonia gas atmosphere, and also gas nitriding or the like is administered, and nitriding film is formed at sliding surface. And at the nitriding film, a nitride iron layer 23 and a nitrogen diffusion layer 22 are respectively formed at the surface layer and at the lower layer.
Patent JP-H01135837-A (JP)
Title: Production of electrically conductive composition
Inventor: KONDO MAMORU
IPC: C08J3/20
Filed: 1987-11-20
Abstract: PURPOSE:To obtain the present composition useful for, e.g., the inner and outer semiconductive layers of electrical insulating cables with their insulating materials consisting of polyethylene, by mixing carbon black and a polymer passed beforehand through a screen with a specified mesh. CONSTITUTION:The objective composition can be obtained by mixing (A) a polymer passed beforehand through a screen with an opening size of <=10mum (e.g., ethylene-vinyl acetate copolymer) and (B) carbon black. The amount of the component B to be blended is pref. 10-100pts.wt. per 100pts.wt. of the component A.
Patent JP-H03156986-A (JP)
Title: Manufacture of laminated piezoelectric device
Inventor: KOMEICHI SHIGEKI
IPC: H01L41/083
Filed: 1989-11-15
Abstract: PURPOSE:To improve productivity and reduce manufacturing costs of a device by bending sequentially the ends of projections extending through a strip, and welding portions where bent ends fall on the adjacent projections. CONSTITUTION:A piezoelectric laminate 4 includes piezoelectric plates 1, and electrodes 2 each having a projection 2a on one end. The plates and electrodes are alternately laminated in such a manner that adjacent electrodes have their projections 2a extending in opposite directions. A thin and very soft strip 4 of thermosetting insulating resin, which is wider than the projection 2a, is applied on each surface of the laminate 4 and under the projections. Since the strip 5 is hardened by heat, the projections 2a are bent and overlapped one another on the hardened strip. The overlapped portions are welded and they are electrically connected. Therefore, the projections are connected each other in a manner that the electrodes 2 of the opposite polarities exposed at both surfaces of the laminate are isolated. In this constitution, it is possible to improve productivity and reduce manufacturing costs.
Patent JP-S62103114-A (JP)
Title: Manufacture of panel
Inventor: TANAKA HIROSHI
IPC: B29C43/20
Filed: 1985-12-26
Abstract: PURPOSE:To manufacture a panel having a realistic design at good reproducibility by reducing man-hours in a manufacturing process, by performing hot press molding by piling a treated sheet upon the surface of a molding compound by treating an impregnatable sheet, which a desired pattern has been applied with at least two kinds of ink having a difference in permeability, with thermosetting resin. CONSTITUTION:The titled panel is constituted of a sheet 2 printed with ink 5a whose permeability is small and ink 5b whose permeability is large and an SMC (sheet molding compound) molded article 3 provided on a supporting material 6. The surface of the sheet 2 is covered with a resin layer 4 as not press treatment has been applied to the sheet 2 by impregnating the same with thermosetting resin. The SMC molded article 3 is provided on the supporting material (for example board or metallic plate) and the sheet 2 is provided on the SMC molded article 3. China painting of a panel can be performed at a time in press molding of an MC as the hot press molding is performed by putting a printing sheet, with which thermosetting resin has been impregnated, upon the MC. Wear resistance and water resistance of the surface can be improved as the printing sheet has been impregnated with the thermosetting resin beforehand. The panel rich in cubic feeling can be obtained as a pattern is printed on an impregnatable sheet with the ink whose permeability is large and the ink whose permeability is small.
Patent JP-H10121722-A (JP)
Title: Chamfer strip
Inventor: YOKOTAGAWA SHIYOUICHI
IPC: E04G9/10
Filed: 1996-10-16
Abstract: PROBLEM TO BE SOLVED: To easily mount a chamfer strip to a form in a concrete casting site. SOLUTION: Nail-like bodies 5 are driven in a chamfer strip from the surface 1a of the chamfer strip 1 in advance, each of the front ends of the nail-like bodies 5 reaches the vicinity of the surface 1b coming into contact with a form in the chamfer strip, and each of the heads 5b of the nail-like bodies 5 is in a state to project to the surface of the chamger strip.
Patent JP-H07147780-A (JP)
Title: Power unit
Inventor: MURAKAMI YOSHINOBU
IPC: H02M7/48
Filed: 1993-11-25
Abstract: PURPOSE:To fix an output current and make the waveform of the output current a sine wave by providing a power unit with an inverter control circuit where the other series circuit corresponding to one series circuit of a switching element is slid by a specified phase, and controlling the switching phase of the inverter control circuit and the output voltage of a converter circuit. CONSTITUTION:An inverter circuit 2 is provided with an inverter control circuit 20 which relatively controls the on-off of the switching element Q0 connected in series to the output of a converter circuit 1' and controls the switching with the phase where the other series circuit is slid by 180 deg. from one series circuit of the switching element Q0. And, a control circuit 4 controls the switching phase of an inverter control circuit 20 and the output voltage of a converter circuit 1', according to the load current detected with a current detecting circuit 3. Hereby, the output current is made always constant, and the wave of the output current can be made sine waves.
Patent JP-H11132887-A (JP)
Title: Pressure sensor
Inventor: KATO YUKIHIRO
IPC: G01L9/04
Filed: 1997-10-28
Abstract: PROBLEM TO BE SOLVED: To improve spring characteristics of a diaphragm of a pressure sensor, restrain generation of zero point temperature drift, and improve precision. SOLUTION: This sensor 100 is provided with a case 7 having a port 9, a stem 1 having a recessed part 1a, conductor 3 linked with the recessed part 1a, a pressure detecting element 2 fixed to the recessed part 1a with which element the conductor 3 is electrically connected, liquid 5 transferred to the pressure detecting element 2, and a diaphragm 4 sealing the liquid 5. The stem 1 has concentric circle type protruding parts 4a, 4b having a height of 0.075-0.15 mm. When the inside of the abutting surface 1b of the diaphragm 4 against the stem 1 is set as the effective outer periphery 4d of the diaphragm 4, the protruding parts 4a, 4b are arranged in a region of about two-third from the effective outer periphery 4d.
Patent JP-S62148064-A (JP)
Title: Casting slab guide apparatus
Inventor: SASAKI HIROSHI
IPC: B22D11/128
Filed: 1985-12-24
Abstract: PURPOSE:To guide a casting slab without pressing bulging part of the slab by pressing only at right angle direction to the slab surface by rolls having shape or construction, which is brought into contact with corner parts of upper surface and lower surface of the slab but is not brought into contact with the bulging part in central part of the slab surface. CONSTITUTION:The slab 2, which is guided or reformed by upper and lower guide rolls 11, 12, has W of width and (t) of thickness and the central part of the upper and lower parts thereof is bulged by (t1) of some bulging size by static pressure of non-solidified part 9 in the shell 10. This slab 2 is brought into contact and pressed with the guide rolls 11, 12, which are formed as saddle- backed rolls, such as becoming smaller diameter as nearer center line of the roll, not to be brought into contact with the bulging part but brought into contact with non-bulging part, that is, only near the corner parts (length W2). In this way, the casting slab is supported without pressing the bulging part thereof and prevented from internal cracking thereof.