baber/WOPTO huggingface dataset:
Patent JP-H08290975-A (JP)
Title: Ceramic composition, core material and production of ceramic product
Inventor: MIYOSHI RIKA
IPC: B28B21/42
Filed: 1995-04-17
Abstract: PURPOSE: To stabilize qualities and to prevent occurrence of defects such as sink mark, crack, weld line, etc., by blending a ceramic powder material with an organic binder comprising a lactic acid polymer as an active ingredient. CONSTITUTION: This ceramic composition is obtained by uniformly blending 70-90 pts.wt. of one or a mixture of two or more of materials comprising Al2 O3 , BN, ZrO2 and BeO as an oxide base, SiC, TiC and WC as a carbide base and Si3 N4 , BN, AlN, etc., as a nitride base, having 0.2-1μm particle diameter with 10-30 pts.wt. of a D,L-lactic acid polymer having 10,000-200,000 weight-average molecular weight. Then the composition is molded into a green molding of a fixed shape by a molding means such as injection molding, etc. The green molding is heated at 25-50 deg.C/hour heating rate up to 400-450 deg.C to decompose and remove the lactic acid polymer of a binder and baked at a baking temperature suitable for a ceramic powder material to be constituted.
Patent JP-S5316613-A (JP)
Title: Mounting structure of piano damper head
Inventor: KAGAWA TAKASHI
IPC: G10C3/16
Filed: 1976-07-29
Abstract: PURPOSE: To change sound-stopping action depending upon the depth of treading of a pedal and improve the effect of performances by so forming damper felts that their strong contact surface crosses string at a suitable angle. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S63304052-A (JP)
Title: Cooling fan for automobile
Inventor: CHIBA KAZUMASA
IPC: F04D29/02
Filed: 1988-04-13
Abstract: PURPOSE:To obtain a cooling fan for automobile having heat-resistance, rigidity, toughness and resistance to traffic antifreezing agent, by molding a mixture composed of a polyamide such as nylon 6, a higher polyamide such as nylon 11 and an inorganic reinforcing material. CONSTITUTION:The composition for the objective fan is produced by (1) mixing (A) 5-95wt.%, preferably 20-80wt.% of a polyamide containing capramide and/or hexamethylene adipamide as main constituent units (e.g. nylon 6 or nylon 66) and (B) 5-95wt.%, preferably 20-80wt.% of a polyamide (e.g. nylon 11) produced by the melt-polymerization of one or more compounds selected from 11-12C aliphatic amino acid, lactam and an equimolar salt of a 6-12C aliphatic diamine and a 6-12C aliphatic carboxylic acid and (2) compounding 100pts.wt. of the mixture produced by the above method with (C) 0-100pts.wt. of an inorganic filler (e.g. glass fiber).
Patent JP-2000284176-A (JP)
Title: Zoom optical system, aligner equipped with same zoom optical system, and exposure method
Inventor: KOMATSUDA HIDEKI
IPC: G03F7/20
Filed: 1999-03-31
Abstract: PROBLEM TO BE SOLVED: To secure a necessary magnification rate without causing a change in the positions of an object plane and an image plane and in the positions of an entrance pupil and an exit pupil as the foal length varies by providing a lens group which is arranged only more on the image side than a pupil plane. SOLUTION: A zoom optical system consists of a positive lens group G41, a negative lens group G42, a positive lens group G43, and a negative lens group G44 in this order from the object side. The components of all the lenses are arranged between an aperture stop and the image plane. For variation in focal length from a maximum focal-length state to a minimum focal-length state, the negative lens group G42 moves to the object side to approach the positive lens group G41 and the positive lens group G43 moves from the position where it approaches the negative lens group G44 to the object side. The refracting power arrangement of the zoom optical system is a positive-negative-positive refracting power arrangement in the maximum focal-length state and a negative- positive-negative refracting power arrangement in the minimum focal-length state.
Patent JP-H11263211-A (JP)
Title: Brake control method for electric control brake system
Inventor: WACHI YUJI
IPC: B60T8/58
Filed: 1998-03-19
Abstract: PROBLEM TO BE SOLVED: To generate a brake force which is quick and large upon performing a pedal operation of sudden braking. SOLUTION: An electric control brake system comprises: a braking pressure generating device 6 for generating a braking force; a stroke sensor for detecting a pedal stroke; and a controller 10 for controlling a braking pressure in accordance with a signal from the stroke sensor. Further, the electric control brake system comprises a pedal reaction device 4 for generating a pedal reacting in accordance with a signal from the stroke sensor. The best brake feeling can be obtained by controlling characteristics of the pedal reaction device 4 and characteristics of the braking pressure generating device 6. Furthermore, the characteristics are changed at the time of sudden braking so that a pedal leg-power against a pedal stroke is smaller than that at the normal braking time and a braking pressure against the pedal stroke is larger than that at the normal braking time.  By this constitution, even an unskilful biginner or forceless woman can obtain enough braking force.
Patent JP-S5617102-A (JP)
Title: Preliminary forming method for blank slab before rolling work and forging tool for preliminary forming work
Inventor: WATANABE KAZUO
IPC: B21B15/00
Filed: 1979-07-18
Abstract: PURPOSE:To preliminarily form the section in the breadth direction of the end of the blank slab into a dog bone shape, by forming the tip and the tail ends of the blank slab into a trapezoid shape using the specially shaped forging tool, and next, by forming the triangular pyramid type protuberance at both side planes of this trapezoid. CONSTITUTION:The inclined plane 5 is formed in the tool's main body 4 at the side to compress the end of the blank slab 1 in the breadth direction, and the groove 6 of specified depth is formed in the inclined plane 5. The knocking part 7 is installed at the tip of the groove 6 for knocking the front end face 1a of the blank slab 1. A couple of this tool 4 is used in forging work for reducing the tip of the blank slab 1 in the breadth direction; hereby, the trapezoid shape C is formed at the end plane of the slab 1, and also, the triangular pyramid type protuberance is formed at both side planes of the trapezoid. The tail end of the slab 1 is similarly formed and the section of both ends of the slab 1 in the breadth direction is preliminarily formed into a dog bone shape E possessing the protuberance. Hereby, the crop length caused by the rolling work is shortened, and the yield of the rolling work is improved.
Patent JP-H07293826-A (JP)
Title: Method and device for supplying vapor to burner
Inventor: BANDAI SHIGEMI
IPC: F23D11/18
Filed: 1994-04-28
Abstract: PURPOSE:To permit the prevention of deterioration of a local flame temperature or the change of fluid condition in the head unit of a burning unit by a method wherein a part of vapor, supplied to a burner, is supplied previously into primary air to obtain the mixed gas of vapor and air, then, the mixed gas is supplied to the burner. CONSTITUTION:A vapor supplying port 4a is formed in the vapor supplying passage 4 of a nozzle block 1 and is connected to a primary air supplying passage, formed at the upstream side of a flame keeper 5. A part of vapor is supplied from the circumference of the flame keeper 5 into primary air previously and mixed fluid of vapor and primary air is supplied to a burner. According to this method, the deterioration of a local flame temperature or the change of fluid condition in the head unit of a burning unit can be prevented. Accordingly, the maintaining of stability of flame while reducing NDx, which is due to the supply of the vapor, is permitted.
Patent JP-H08263874-A (JP)
Title: Optical information recording medium and its production
Inventor: KONDO TETSUYA
IPC: G11B7/24038
Filed: 1995-03-24
Abstract: PURPOSE: To obtain an optical disk having a multilayered structure and its production method which is advantageous for both of accuracy and productivity. CONSTITUTION: This optical disk 1 has two information recording faces in the thickness direction of a substrate 4. The second information recording face is formed on a transparent layer 6 which is formed by applying a thermoplastic resin sheet 37 having within ±50nm double pass double refraction and uniform thickness in 20-100μm range on a substrate 4. The pits 4B in the transparent layer 6 are formed by heating and pressing the thermoplastic resin sheet 37 between the substrate and a stamper 36 to form the second information recording face 3.
Patent JP-S58208757-A (JP)
Title: Electronic copying device
Inventor: TANABE TAKESHI
IPC: G03G15/00
Filed: 1982-05-31
Abstract: PURPOSE:To keep the quantity of charge/exposure at its optimum status, by providing a displaying means for displaying the number of revolutions detected by a detecting means for detecting the number of revolutions related to a recording drum. CONSTITUTION:Notches are formed on the whole peripheral edge of a pulse disc 62 coaxially fixed on a rotary shaft of a photosensitive drum and a photointerruptor 63 is arranged in a noncontact state so as to clip the pulse disc 62. When the pulse disc 62 is rotated integrally with the rotation of the photosensitive drum, the peripheral notches pass through the gap part of the photointerruptor 63, so that a phototransistor built in the photointerruptor is turned on and off repeatedly and generates square waves and the number of revolutions of the photosensitive drum can be detected by using said procedure. Consequently, the number of revolutions is controlled so that the quantity of charge/exposure is kept at its optimum status.
Patent JP-H01263634-A (JP)
Title: Multiscreen projector
Inventor: OGINO MASANORI
IPC: G03B21/625
Filed: 1988-04-15
Abstract: PURPOSE:To constitute a large high quality screen with less difference of brightness between the upper and lower sides by providing a prism sheet means which controls the vertical directional characteristics of the screen at each unit module. CONSTITUTION:The prism sheet means 11 is provided between a Fresnel sheet means 9 and a lenticular sheet means 10. Among plural unit modules 1 to 4, the prism angle of the means 11 of upper module is made wider than the prism angle of the means 11 of lower module and a main emitted beam converges to an observer. The average tilt of the prism surface of the means 11 is polarized to face the lower side and the diffusion range of the beam in vertical direction on the surface of the prism at the upper module is made larger than at the lower module. Thus, the difference of brightness between the upper and lower side can be made less.
Patent JP-H01264250-A (JP)
Title: Semiconductor device
Inventor: YASUDA TAKESHI
IPC: H01L27/04
Filed: 1988-04-15
Abstract: PURPOSE:To make a semiconductor device with a built-in Schottky capacitance small-sized by a structure wherein a wiring electrode composed of a metal is installed on a Schottky electrode and a metal-insulator-metal capacitance is constituted. CONSTITUTION:A semiconductor device (chip) constituting a wide-band low-noise amplification GaAs IC has a structure where a FET part 2 and a capacitance part 3 are situated to be adjacent on a main face of a semiinsulating GaAs substrate 1. For the capacitance part 3, a Schottky capacitance is formed of an n-type layer 10 for Schottky capacitance formation use and of a Schottky electrode 11, for capacitance use, formed on the n-type layer 10 for Schottky capacitance formation use; an MIM capacitance is formed of the Schottky electrode 11 for capacitance use, an insulating film 12 formed on the Schottky electrode for capacitance use and a wiring electrode 13 formed on the insulating film 12. Accordingly, since the MIM capacitance is piled up on the Schottky capacitance, a ratio of an area occupied by the capacitance part to the chip is reduced; the chip can be made small-sized.
Patent JP-H04224195-A (JP)
Title: Improved polysilicon and method therefor
Inventor: ROBAATO HOORU AREN
IPC: C30B15/02
Filed: 1991-03-29
Abstract: PURPOSE: To obtain a beadlike polysilicon having a shiny surface without containing silicon dust at a low hydrogen content by providing a polysilicon layer having the outside layer of fine silicon on the central part of high-purity silicon.  
     CONSTITUTION: A polysilicon layer 12 having an outside layer 14 of fine silicon is provided on a core 10 of high-purity silicon, and semiconductor grade polysilicon 1 in the form of beads or beadlike particles is provided which has the surface essentially not containing silicon dust and the hydrogen content therein is less than 300 ppma. This polysilicon 1 can be provided by fluidizing the semiconductor grade silane guiding polysilicon in the form of beads or beadlike particles in a reaction zone at 1000 to 1200°C together with a carrier gas containing a silane compound of the formula SiH 4-n Xn [(n) is 1 to 4 and X is chlorine, bromine or iodine] in a conc. of 0.1 to 5.0 mols, and recovering it from the reaction zone later. Thus, objective improved polysilicon suitable for starting materials for semiconductor device production can be obtained. 
     COPYRIGHT: (C)1992,JPO
Patent JP-S63256411-A (JP)
Title: Preparation of hollow body having inter pattern
Inventor: NAGAMI TAKASHI
IPC: B29C39/26
Filed: 1987-04-14
Abstract: PURPOSE:To make it possible to form an inner hollow pattern prepared by transferring an inner mold and to manufacture a hollow body having an inner pattern with complicated processes, by inserting an inner mold in an inner molding space of a mold, pouring and solidifying a molding material in the molding space in this state and thereafter dissolving the inner mold. CONSTITUTION:A gelatin solution is poured in a plaster mold being capable of splitting into right and left molds to prepare a golf ball-like inner mold 3. Then, the inner mold 3 is inserted in an space of a mold 1 for molding a cylinder being capable of splitting into a top and a bottom molds and therein hanged with a string. In this state, a transparent synthetic resin molding material is the in poured from a pouring hole 2 for a molding material and solidified. The mold 1 is opened to take out a cylindrical molded item and a dissolving hole 4 reaching the golf ball-like inner mold 3 is perforated. A small injection needle is inserted in this dissolving hole 4 and while gelatin is being dissolved by pouring hot water, dissolved gelatin is flowed out of a gap between the outer circumference of the injection needle and the dissolving hole 4 to form a golf ball-like hollow pattern space after the outflow. A resin is poured in the dissolving hole 4 only to bury the dissolving hole 4 to form a golf ball-like pattern space.
Patent JP-H09259320-A (JP)
Title: Position deciding method for circular object
Inventor: SASAKI TOMOYUKI
IPC: G07D5/02
Filed: 1996-03-22
Abstract: PROBLEM TO BE SOLVED: To accurately provide the center position in a carrying direction of a recognition object by eliminating the effect of other circular objects projected in an image area even when the circular object of a recognition object is continuously carried in the method of deciding the center position of the circular object by using the two-dimensional image of the carried circular object such as a coin. SOLUTION: A direction perpendicular to the carrying direction A of the circular object it turned in a horizontal direction and a luminance histogram Vhist in the carrying direction inside a window 21 set with a fixed width Vw in the horizontal direction from a part near the end 2a of a carrying path on a side where the circular object is brought to one side and carried is prepared from the image of the circular object 1B. The edge parts of the circular object 1B are retrieved from the part near the center of the luminance histogram Vhist toward both sides Ya and Yb and the coordinate Cx of the intermediate point of the detected two edge parts YT and YB is defined as the center coordinate position in the carrying direction of the circular object 1B.
Patent JP-H04323517-A (JP)
Title: Movement amount measurement device of moving piece
Inventor: KOYAMA MASAHIDE
IPC: G01D5/30
Filed: 1991-04-23
Abstract: PURPOSE:To achieve high-speed measurement and accurate measurement by making a graduation formed at a pitch of linear scale and a line sensor for reading crossed with one another in a relatively tilted manner. CONSTITUTION:A lined graduation 9 is formed at a pitch  X and tilted at angle theta on a linear scale 8. A plurality of optical devices 7a are provided in parallel for a line sensor 7. The pitch  X and the angle theta of the graduation 9 are determined so that the line sensor 7 crosses the graduation 9 even when the line sensor 7 is stopped at any point. Since the pitch  X can be set larger within a range where the line sensor 7 and the graduation 9 cross with each other, frequency of the reading of the graduation 9 of the line sensor 7 and that of the output of reading signals from the line sensor 7 are reduced, and high-speed movement of a moving piece 2 is thus possible. The amount of movement or stop position of the moving piece 2 are accurately measured based on the intersection of the line sensor 7 and the graduation 9.
Patent JP-H05261587-A (JP)
Title: Drawn cup type heat exchanger formed by vacuum drawing
IPC: B23K35/22
Filed: 1992-03-18
Abstract: PURPOSE:To provide the brazing sheet material having the excellent brazability simultaneously satisfying both the outside surface and inside surface and the material constitution of a fin material in vacuum brazing of the drawn cup type heat exchanger. CONSTITUTION:This heat exchanger is constituted of the plate material formed by cladding a brazing filler metal contg. 8 to 12% Si and 0.3 to 0.8% Mg, further, contg. <=0.3% Bi and consisting of the balance Al and unavoidable impurities on an aluminum core material and the Al alloy film material contg. 0.3 to 1.0% Mg. The total content of Mg in the brazing filler metal and Mg in the fin material is >=1.0%.
Patent JP-S5618897-A (JP)
Title: Multistage liquid feed assembly and machine* such as washing machine provided with said assembly
Inventor: KURISUTEIAN BIYURUGURU
IPC: D06F39/02
Filed: 1980-07-04
Abstract: A multiple liquid dispenser (5) comprises a single solenoid valve for controlling the intake of liquid; (n-1) liquid guide devices (11) connected in cascade as the connecting system between the single inlet (7) and the n outlets, the guide devices each having three ways (14, 15, 16) and comprising a float valve (12) which is movable to control flow from the way (16) to each of ways (14, 15), the valves being sequentially actuated by the incoming liquid upon repeated opening and closing of the solenoid valve for fixed periods, a hole (25) of predetermined size for connection to atmosphere being formed in the path of the incoming liquid downstream of the valve seat defined between each inlet way (16) and the associated way (15). During operation each float valve (12) is held in turn against the seats surrounding the ways (15), (14) by suction created by downstream negative pressures. <IMAGE>
Patent JP-H06117761-A (JP)
Title: Radiative heating device
Inventor: KUNITOMO AKICHIKA
IPC: F23D14/12
Filed: 1991-04-23
Abstract: PURPOSE:To provide a radiative heating device having a high heating efficiency by a method wherein the values of a radiating rate and absorbing rate of the surface of a metallic bulkhead are enlarged whereby the amount of heat radiation from a heating side toward a heat receiving side is increased. CONSTITUTION:In a radiative heating device, a third perforated solid body 6, provided so as to be contacted closely to the outside of a metallic bulkhead 2, and a fourth perforated solid body 7, provided so as to be contacted with the inside of the bulkhead 2, are provided whereby the values of the rate of radiation and the rate of absorption of the surface of the metallic bulkhead 2 can enlarged.
Patent JP-S5317987-A (JP)
Title: Cable for direct burying
Inventor: DEN YUTAKA
IPC: H01B7/18
Filed: 1976-08-04
Abstract: PURPOSE: To prepare a cable capable of safely being buried directly, by closely sticking and forming the protective layer and external sheath successively to a plurality of core lines, with a material of shock-proof interpositioned between the core lines. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S58209722-A (JP)
Title: Detecting and setting device of focusing
Inventor: SHISHIDO YOSHIO
IPC: G02B7/28
Filed: 1982-05-31
Abstract: PURPOSE:To obtain a focusing setting device which detects a focusing state with high precision and setting a photographic or image forming lens system at a focusing position on the basis of the detection result, by photodetecting light reflected by an object by a photodetecting means which is provided at a position conjugate to an image formation surface and has an optical opening part or non-sensitive part. CONSTITUTION:An optical system housed in a camera adapter 5 is arranged so that the position of the surface of a film 22 in a camaera 6 is conjugate to that of a photoelectric element 15A'. A focusing detector which detects whether a photographic lens is in focus or not is used; when the lens is in focus, the lens 8 is moved to the in-focus position and once it reaches the in-focus position, an in- focus pilot lamp 19 turns on. The device is so constituted that its light is reflected by a focusing mirror 9 and further reflected by a return mirror 21 at a rear position on an optical axis 7 in the camera 6 and said light can be seen by an observer through a pentagonal prism 23 and a finder lens 24.
Patent JP-2000285922-A (JP)
Title: Alkaline storage battery, and manufacture of its electrode
Inventor: INAGAKI TORU
IPC: H01M4/70
Filed: 1999-03-31
Abstract: PROBLEM TO BE SOLVED: To improve collecting performance in a pole plate and a charge/ discharge characteristic in heavy-current, by using a three-dimensional metal Ni porous body as a substrate, and using an electrode added with a porous metal Ni short-fiber as a conductive agent. SOLUTION: A porous metal Ni short-fiber as a conductive agent injected into an electrode is formed by sintering powdery Ni until space ratio in a fiber becomes 5-25 %. Therefore, specific surface area of the fiber as the conductive agent is smaller than that of the powdery Ni, influence by a reaction with electrolyte decreases, and large capacity-reduction is not found after repeating charge/discharge. This Ni fiber has a larger specific surface area comparing with a generally used and mechanically produced Ni fiber, a contact area with an active material increases, and therefore, less added amount can improve collecting performance. This Ni fiber is 10-50 μm in diameter and 0.2-1.0 mm in length, and is preferably added by 0.2-5 wt.% to an active material amount.
Patent JP-H09284298-A (JP)
Title: Rate control system for atm exchange
Inventor: SUDO TOSHIYUKI
IPC: H04Q3/00
Filed: 1996-04-15
Abstract: PROBLEM TO BE SOLVED: To provide the rate control system for an ATM exchange not needing to reset a memory for each observation period in the rate control system for the ATM exchange. SOLUTION: In the control system where plural ATM exchanges 3 are connected between a transmission terminal equipment 1 and a reception terminal equipment 2, VC status tables 22a, 22b storing status of a VC and active VC counters 25a, 25b to count number of active VCs in pairs are provided in an explicit rate (ER) arithmetic circuit 30 to obtain the ER provided to each ATM exchange so as to form duplicate configuration and write/read of information to/from the active VC counters 25a, 25b and the VC status tables 22a, 22b is conducted continuously.