baber/WOPTO huggingface dataset:
Patent JP-S6483573-A (JP)
Title: Silicon nitride sintered form
Inventor: YUASA MOTOKAZU
IPC: C04B35/584
Filed: 1987-09-25
Abstract: PURPOSE:To obtain Si3N4 sintered form of high density, outstanding in high- temperature strength, oxidation resistance and impact resistance, by making Y2O3 and crystallized glass with the major crystal phase constituted of specified amount of beta-spodument solid solution at the grain boundary phase of beta-Si3N4. CONSTITUTION:A composition comprising respective powder of SiO2, Al2O3, Li2O, alpha-Si3N4, Y2O3, SiO3, Al2O3, Li2O3, MgO, ZnO, TiO2, ZrO2, etc. is formed and sintered at 1,700-1,950 deg.C for 30-150min in a nitrogen atmosphere followed by heat treatment at 850-950 deg.C for 2-3hr and then heat treatment again at 950-1,200 deg.C for 2-3hr, thus obtaining the objective Si3N4 sintered form made up of (A) a total of 4.0-17wt.% of (i) 2.0-12.5wt.% of crystallized glass with the major crystal phase constituted of beta-spodument solid solution and (ii) 2.0-10wt.% of Y2O3 and (B) the rest of beta-Si3N4.
Patent JP-H0770652-A (JP)
Title: Method for controlling tension of loop car
Inventor: HAYATO KATSUNAO
IPC: C21D11/00
Filed: 1993-09-03
Abstract: PURPOSE:To efficiently control the tension by controlling the tension variation generated at the time of starting the shifting and at the time of turning over the shifting direction of a loop car in a looper caused by velocity change at the inlet side or the outlet side of the looper. CONSTITUTION:Moments at the start of the shifting and the turn-over of the shifting direction in each section are detected in the control unit in the looper for absorbing the difference of the carrying velocities of the continued body between two sections. The calculated corrected value is added to current command of an electric motor for driving the loop car to control the generated tension variation. The corrected calculation is executed with a correcting algorithm start and the velocities VD, VE at the outlet side and the inlet side are fetched and the velocity difference DELTAV among both and the absolute value ¦DELTAV¦, primary differential of the velocity difference DELTAV' and its absolute value ¦DELTAV¦' are calculated. In the decision of the condition, the moments at the start of the shifting and the turn-over of the shifting direction of the loop car are detected with the theoretical product in two conditions of ¦DELTAV¦<A and ¦DELTAV¦'>0. In the correction, in the case of satisfying the conditions, a tension correcting value multiplying a correcting gain K to DELTAV' is added to the tension command value.
Patent JP-H0882759-A (JP)
Title: Optical scanner
Inventor: SUZUKI YASUO
IPC: G02B7/00
Filed: 1994-09-09
Abstract: PURPOSE: To simplify the assembling of a semiconductor laser and a collimate lens. CONSTITUTION: An optical box 5 in which a rotary polygon mirror 3 is housed is provided with an attaching hole 5b individually attaching the semiconductor laser 1 and the collimate lens 2, and the collimate lens 2 is attached to it, thereafter the laser beam L1 of the semiconductor laser 1 is taken out from the monitoring opening 5e of the optical box 5 to the outside, the optical axis adjustment and the focus adjustment of the semiconductor laser 1 are preformed, and the laser 1 is fixed to the attaching hole 5b by adhesive material 6. The number of assembly parts is reduced compared with the case when the semiconductor laser 1 and the collimate lens 2 are unitized, and the number of times of the optical axis adjustment is reduced, thereby simplifying the assembling.
Patent JP-H0799055-A (JP)
Title: Hydrogen secondary battery
Inventor: YAMAMOTO MASAAKI
IPC: H01M10/34
Filed: 1993-09-29
Abstract: PURPOSE:To improve the charge and discharge cycle life, and to make the charge and discharge performance constant, by specifying the saturation magnetization of a ferromagnetic substance including a hydrogen storage alloy prior to using a battery at first. CONSTITUTION:An ingot is casted by an induction heating melting by mixing a metal component of 0.5mol fraction or more of Ni, and it is heat precessed and powdered mechanically so as to obtain a hydrogen storage alloy. This hydrogen storage alloy includes a ferromagnetic substance of the saturation magnetization 1.0 to 4.0emu/g. After a paste is prepared by mixing by adding 1.5 pt. of binder, and 60 pt. of conductive agent and water, to 100 pt. of the mechanical powder, the paste is applied on a punched metal base, dried, pressed, and cut. Since the Ni which is hardly corroded is separated in the hydrogen storage alloy produced in such a way, and a ferromagnetism is exercised, the hydrogen storage alloy functions as an anti-corrosion membrane of the alloy particles, as well as the activity as a negative electrode is increased, by controlling the amount of the Ni.
Patent JP-S61121365-A (JP)
Title: Manufacture of mis field-effect type semiconductor device
Inventor: KATO TAKASHI
IPC: H01L21/28
Filed: 1984-11-19
Abstract: PURPOSE:To improve the degree of integration and performance of a device by each insulating and isolating a soruce, a drain and a gate through heat treatment in a drying oxidizing atmosphere while forming a source region and a drain region and shaping a gate insulating film under a tantalum oxide film through heat treatment in a dampening atmosphere. CONSTITUTION:An silicon dioxide film 2 as a first insulating film is formed onto a p type silicon semiconductor substrate 1, and an opening 4A is shaped near a gate-electrode forming prearranged region in an silicon nitride film 4. A tantalum film 5 is shaped by applying an electron-beam evaporation method, and the tantalum film 5 is changed into a tantalum oxide film 5' through heat treatment in a drying oxidizing atmosphere. A polycrystalline silicon film 6 is formed by applying a CVD method, and the polycrystalline silicon film 6 on the side circumference of the opening is oxidized through heat treatment in the drying oxidizing atmosphere to shape an silicon dioxide film 7. A gate insulating film 10 is formed through heat treatment in a dampening oxidizing atmosphere, and a polycrystalline silicon film is shaped and patterned to form a gate electrode 11.
Patent JP-H05274439-A (JP)
Title: Method for detecting inclination of outline field
IPC: G06T7/00
Filed: 1992-09-11
Abstract: PURPOSE:To easily obtain the slanting vector of an outline field by finding azimuth vectors from components which slant at a specific angle in the circumferential direction of a concentric circle surrounding the center point from the outline of an image cut from an aimed area and putting them together. CONSTITUTION:An image of an external field from the aimed area of specific size is inputted to a neural network 3. An image of the range of the aimed area is cut from the image and the outline of the object in a specific direction is detected from the cut image. Components of the outline which slant at the specific angle in the circumferential direction of the concentric circle surrounding the center point of the aimed area are all extracted from the detected outline. Then the azimuths and intensities of the extracted components to the aimed area center point are detected as azimuth vectors. The azimuth vectors are put together into the slanting vector of the outline field.
Patent JP-H09329212-A (JP)
Title: Fluid transmission gear
Inventor: TSUKAMOTO KAZUMASA
IPC: F16H45/02
Filed: 1996-08-27
Abstract: PROBLEM TO BE SOLVED: To improve an effect to absorb a torque fluctuation by increasing the diameter of a damper, to improve oiltightness of the cylinder of a direct coupling clutch mechanism, and to improve control precision of an engaging pressure. SOLUTION: Diameter is increased by attaching a damper spring 50 directly on the inner surface of the outer periphery of the casing 1 of a fluid transmission gear, and cushioning capacity of a torque fluctuation is improved. Engine torque is transmitted to an output shaft 9 through a damper disc 51 and the friction engaging element 7 of a direct coupling clutch. By bringing a piston 60 to engage and disengage the friction engaging element 7 into oiltight fitting in the damper disc 51, sealing ability of the cylinder 6 is improved, and control of a lockup and an engaging pressure during control of a lockup slip is facilitated.
Patent JP-H0291031-A (JP)
Title: Isomerization of xylene
Inventor: ONODERA TAMIO
IPC: C07C4/06
Filed: 1988-09-29
Abstract: PURPOSE:To efficiently provide a xylene isomer, especially para-xylene, over a long period by subjecting a low pure 8C aromatic hydrocarbon mixture containing small amounts of non-aromatic hydrocarbons and having a low cost as a raw material to a gas phase xylene isomerization reaction in the presence of a specific catalyst composition in H2. CONSTITUTION:Supplied hydrocarbon raw materials containing a xylene isomer mixture whose main component does not reach a thermodynamic equilibrium thereof and which contains small amounts of non-aromatic hydrocarbons are subjected to a gas phase xylene isomerization reaction in the presence of a catalyst composition comprising zeolite, platinum, tin and hydrochloric acid- carrying fire-resistant inorganic oxide and an indium compound at 250-450 deg.C under a pressure of 0-25kg/cm<2> in H2, preferably followed by isolating para- xylene. The zeolite comprises a pentacyl type aluminosilicate zeolite such as Pt-In-Sn-HCl-Al2O3 whose silica/alumina (mol ratio) is at least 10 and at least 50% of whose cation sites are occupied with the cation of a metal selected from alkaline earth metals.
Patent JP-S62104250-A (JP)
Title: Frequency demodulation circuit
Inventor: MAEDA TATSUYA
IPC: H04L25/49
Filed: 1985-10-31
Abstract: PURPOSE:To apply correct demodulation with simple constitution even when a PBM modulation data whose period is disturbed is received by providing a means detecting a change point in which the time interval from each change point of a reception data to the next change point is a prescribed value or over and a demodulation means applying demodulation by the result of detection. CONSTITUTION:Output data of AND gates 44, 45 are fed to an OR gate 46, which ORs both output data of the AND gates 44, 45. An OR output data of the OR gate 46 is fed to a flip-flop 51 of a demodulation section 50 as a trigger signal (e) comprising pulse train appearing while the same level state of a reception data (c) is consecutive for 12 clocks or over of the clock signal (d). A flip-flop 51 is transited in response to the trailing edge of the trigger signal (e) and each pulse of the trigger signal (e) represents the existence of logical '0' bit. Thus, a Q output of each flip-flop 51 whose state is transited in response to the lost pulse of the trigger signal (e) is an NRZI (non return to zero inverted) modulation data (f) and fed to a demodulation circuit 52, where the signal is demodulated in the original form.
Patent JP-H0989106-A (JP)
Title: Piston structure of internal combustion engine
Inventor: YOSHIMURA HIDEO
IPC: F16J1/16
Filed: 1995-09-21
Abstract: PROBLEM TO BE SOLVED: To reduce the piston slap due to a skirt part and friction between the skirt part and cylinder by restraining the large inclination of the piston near the upper dead center in compression. SOLUTION: The axis 20 of a piston pin hole 19a or the like of a pair of pin boss parts 19 or the like formed on the inner peripheral surface of a piston 10 is offset to the thrust side relative to the center line X in the diametral direction of a skirt part 16, while thick ribs 22, 23 are provided along the axial direction of the piston on the respective inner surface of the thrust side skirt position and anti-thrust side skirt position. Also, slits 21, 21 are formed along the peripheral direction of the skirt part 16 on the bottom wall of a third ring groove 15 located on the upper end side of the ribs 22, 23.
Patent JP-H0798739-A (JP)
Title: Automatic transaction device
Inventor: CHOKAI HIDEKI
IPC: G06Q40/00
Filed: 1993-09-29
Abstract: PURPOSE:To easily execute a transaction start, even if a display to a customer is not executed by providing a customer detection sensor and an eye-catcher in the automatic transaction device by constituting the device so that the backlight repeats bright lighting, and dark lighting executed by reducing the light, in a state for waiting for a customer. CONSTITUTION:This automatic transaction device 1 contains a liquid crystal display 2, a backlight 3, a backlight lighting circuit 4 for controlling a lighting state, and a customer's operating key 5 for enabling a customer to execute a transaction operation, a card handling unit 6, a paper money handling unit 7 and a main control part 8 for controlling each constituting part. In such a state, when this automatic transaction 1 is in a stand-by state, the backlight 3 performs repeatedly lighting of two bright and dark steps, and when the automatic transaction device 1 is executing a transaction, the backlight 3 is switched to continuous lighting with rated brightness. Also, the display part (liquid crystal display 2) constituted of a monochromatic liquid crystal is provided with a backlight with multi-color, and by switching a light emission color, customer's attention can be attracted.
Patent JP-H1092063-A (JP)
Title: Surface reforming method for cylinder made of aluminum for video tape recorder
Inventor: KOKUBO SADAO
IPC: B23K26/00
Filed: 1996-09-13
Abstract: PROBLEM TO BE SOLVED: To produce a cylinder excellent in wear resistance easily and at a low cost by irradiating the coating film of wear resistance substance with a pulse oscillation laser after forming the coating film of wear resistance substance on video tape running surfaces of a cylinder main body. SOLUTION: The coating film of wear resistance substance is formed on video tape running surfaces 11a, 11b of upper and lower cylinders 1a, 1b. An Al-50wt.% Si alloy powder having the mean grain size of 78nm is used as the wear resistance substance and a melt-sprayed coating film whose thickness is 200nm is formed by performing a melt-spraying by a plasma thermal spraying method on the video tape running surfaces 11a, 11b of a material under test. As a result in which a laser irradiation is performed, an alloyed layer whose thickness is 300μm which includes the Si of the order of 35wt.% is formed on the surfaces of the material under test.
Patent JP-S60137834-A (JP)
Title: Electric melting furnace of vertical type for glass
Inventor: KAMIYA MAKIO
IPC: C03B5/26
Filed: 1983-12-22
Abstract: PURPOSE:The titled melting furnace capable of heating the whole furnace equally in good heat efficiency, regulating easily a flow rate of extrusion, arranging vertically plural laminar electrodes along both opposing side walls near to the bottom of the furnace, covering an extrusion nozzle with a work coil. CONSTITUTION:The laminar electrodes 16 such as platinum, etc. are deeply inserted along both opposing side walls of the melting tank 11 near to the bottom of furnace. The extrusion nozzle 17 connecting to the bottom of furnace is set, and covered with the work coil 18. A glass raw material and cullet are fed from the feed opening 13 for raw material of the upper part structure 12 to the furnace, heated by the resistance heating element 14 and directly heated by the laminar electrodes 16, and the melted glass 15 is sufficiently melted near to the bottom of the furnace. After the melted glass 15 is made clear, it is taken out from the extrusion nozzle 17. Temperature is controlled by regulating high-frequency electric current made to flow through the work coil 18 covering the extrusion nozzle 17, and a flow rate of the extruded glass is adjusted.
Patent JP-2000077907-A (JP)
Title: Dielectric filter
Inventor: SANO KAZUHISA
IPC: H01P1/208
Filed: 1998-08-28
Abstract: PROBLEM TO BE SOLVED: To provide a dielectric filter capable of being used in >=3 GHz high frequency and adjusting bandwidth. SOLUTION: This filter has a structure connecting plural rectangular parallelepiped dielectrics 11 and 12 and island-shaped input-output electrodes 13 and 14 surrounded by ground electrodes 15 and 16 are formed on one surface of the respective dielectrics. Ground conductors are also formed on the surfaces other than the connected faces of the dielectrics and resonators are connected at a connected plane 17 exposing the dielectrics to construct the filter. A conductor film 18 is formed at the ambient part of the connected plane 17 and the dielectrics are connected by utilizing the conductor film 18. It is possible to adjust the connection by a conductor film 19 crossing the center of the connected face.
Patent JP-H06207995-A (JP)
Title: Reactor core of boiling-water nuclear reactor
Inventor: SUBEN BIRUGERU YOHANESUSON
IPC: G21C3/328
Filed: 1993-09-29
Abstract: PURPOSE: To provide a core of reactor in which the tolerance of dry out can be improved without reducing the attainable effect. CONSTITUTION: This core for boiling water reactor is formed of a plurality of fuel assemblies 40 having a plurality of fuel rods 10, 10a, 10b. Each fuel assembly has intermediate gaps 37a, 37b related to the adjacent assembly and related to an internal channel 32, and water is carried from the lower part to the upper part within the gaps and the channel. Within the fuel assembly, the edge fuel rod 10b is arranged adjacently to the gap or channel so as to surround the center fuel rod 10a, and these fuel rods are arranged in such a manner that the ratio of the enrichment in the horizontal section of the center fuel rod to the average enrichment of the center and edge fuel, rods is lower in the upper part of the center fuel rod than in the lower part.
Patent JP-H1086381-A (JP)
Title: Ink jet recording apparatus
Inventor: ISHII KOICHI
IPC: B41J2/175
Filed: 1996-09-13
Abstract: PROBLEM TO BE SOLVED: To prevent the adhesion of a colorant to an electrode part even if the canon. of the colorant is high by stirring ink in an ink jet recording apparatus using ink prepared by dispersing a colorant component in an insulating solvent. SOLUTION: An ink holding part 5 holding ink 4 prepared by dispersing a colorant component in an insulating solvent, the recording electrode 1a arranged on the head substrate 1b in the ink holding part 5 in order to fly the colorant component in the ink 4 by electrostatic force and the stirring electrode 3 formed on the surface on the side of the ink 4 of the upper substrate 2a arranged on the surface opposed to the recording electrode 1a are provided and, by applying control voltage such that the relation of potential between respective electrodes is reversed at a constant cycle to the stirring electrode 3 from a stirring electrode control circuit 60, the ink 4 is stirred by the force of an electric field.
Patent JP-H0985660-A (JP)
Title: Teaching device for robot
Inventor: SANO MASATOSHI
IPC: B25J13/06
Filed: 1995-09-21
Abstract: PROBLEM TO BE SOLVED: To enable a left-handed person to operate a robot in the same operating environment as a right-handed person does. SOLUTION: The shape of a teaching device body 10 is nearly symmetrical about a central plane 10a. Dead man keys 14, 15 are provided at symmetrical positions on both the sides of the teaching device body 10, and can be operated at the same position by either of right and left hands. A teaching operating key 18 is provided on a transparent touch panel 17, and its function is displayed with LCD 19 on the back side. Since a multifunction panel 16 composed of the touch panel 17 and LCD 19 is changed over in the arrangement of function of the key 18 for the right-handed or the left-handed panel, the arrangement of key which is easily operated even by the left-handed person can be easily realized.
Patent JP-S6397333-A (JP)
Title: Adiabatic riser heat insulating material for iron and steel ingot casting mold
Inventor: MATSUSHITA NOBORU
IPC: B22D1/00
Filed: 1986-10-15
Abstract: PURPOSE:To prevent infiltration of a molten steel into a riser heat insulating material and to improve the heat insulating effect thereof and the yield of a steel ingot by coating a coating material consisting of specific components on the surface of said heat insulating material. CONSTITUTION:Refractory aggregate powder has <=10mu grain size and contains >=90wt% alumina. The coating material prepd. by adding and mixing the hydrolyzed liquid of metal alkoxide to said aggregate powder is coated on the surface of the riser heat insulating to form the adiabatic riser heat insulating material for an iron and steel ingot casting mold. The infiltration of the molten steel into the heat insulating material is thereby prevented and the heat insulating effect is improved. The crop loss after rolling of the steel ingot; i.e., the yield of the steel ingot is improved as well.
Patent JP-S60134401-A (JP)
Inventor: KOJIMA MASAMI
IPC: F02P15/00
Filed: 1983-12-22
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-2001066504-A (JP)
Title: Optical device and photographing device using the optical device
Inventor: SUNAGA TOSHIHIRO
IPC: G02B17/08
Filed: 1999-08-30
Abstract: PROBLEM TO BE SOLVED: To decrease the effective diameter of an optical device even when the device is a reflection type optical device having a wide viewing angle by controlling the focal length of each specified group to satisfy specified conditions at a specified azimuth. SOLUTION: The optical device 10 includes, along the optical path after a light beam enters the optical device, a first off-axial reflection plane R3, second off-axial reflection plane R4, last off-axial reflection plane R7 in the optical device 10, and off-axial plane R6 in the incident side of light for the plane R7. The group from the entrance plane where the light beam enters the optical device 10 to the off-axial reflection plane R3 is noted as a first group B1. The group from the off-axial reflection plane R4 to the off-axial reflection plane R6 is noted as a second group B2, and the group from the off-axial reflection plane R7 to the exit plane where the light beam exits from the optical device 10 is noted as a third group B3.  The focal lengths fB1(θ) to fB3(θ) of the first group B1 to the third group B3 respectively at the azimuth θ satisfy the conditions of fB1(θ)> 0, fB2(θ)<0 and fB3(θ)>0 (0<θ<2 π).
Patent JP-S6484292-A (JP)
Title: Double-side display device
Inventor: SATO YOICHI
IPC: G09F9/40
Filed: 1987-09-28
Abstract: PURPOSE: To reduce the number of parts, to simplify the assembly of a device and to make the device compact by constituting a liquid crystal display panel by arranging liquid crystal display panel modules in a line in a horizontal direction and horizontally or vertically coupling the liquid crystal display panel modules. CONSTITUTION: The liquid crystal display panels 13 and 14 are constituted by arranging the liquid crystal display panel modules 12 at least in a line in the horizontal direction. Therefore, the panels 13 and 14 can be constituted by combining the optional number of modules 12 by properly horizontally or vertically coupling them. Besides, since the modules 12 themselves are formed to be U-shaped, the depth of the whole device can be reduced by alternately disposing the modules 12 back to back. Moreover, the number of parts is reduced and the device is easily assembled and made compact by using the back illumination light sources 15 and the control circuits 16 of the panels 13 and 14 in common.
Patent JP-H0587034-A (JP)
Title: Ignition device for internal combustion engine
Inventor: NAKAMOTO KIYOTOSHI
IPC: F02P15/00
Filed: 1991-09-24
Abstract: PURPOSE:To house an ignition coil and an ignitor densely in a single case without hampering a heat radiation, and to improve the installing property to an internal combustion engine. CONSTITUTION:An ignition coil winding 2 and a mould type ignitor 50 are housed in a case 40, a potting resin 60 is injected and hardened in the case 40, and furthermore, the ignitor 50 is arranged at the opening end side of the case 40, and a heat sink 55 is assembled to the ignitor 50 exposing from the potting resin 60.