baber/WOPTO huggingface dataset:
Patent JP-H07173130-A (JP)
Title: Production of orthobenzenedithiols
Inventor: TAI SHINICHI
IPC: C07C321/26
Filed: 1993-12-20
Abstract: PURPOSE:To simply produce orthobenzenedithiols in a process fewer than that of a conventional method in a high yield. CONSTITUTION:An alkylbenzene of formula I (R is a 1-8C straight-chain or a branched alkyl) are reacted with sulfur monochloride in the presence of a catalyst in a solvent at 10-140 deg.C and then, the reacted liquid is reduced using at least one kind of metal selected from a group consisting of zinc, iron and tin while keeping the liquid to acidity (pH1-4) to provide the objective orthobenzenedithiol of formula II. As the catalyst, a Lewis acid such as zinc chloride, ferric chloride or antimony pentachloride, a metal such as zinc or iron or iodine is used in an amount of 0.1-40 times by mol, preferably 0.2-2.0 times by mol based on the alkylbenzene. A benzenethiol metal complex obtained by reacting an orthobenzenedithiol with a metal ion strongly absorbs infrared rays in a near-infrared region.
Patent JP-H07181799-A (JP)
Title: Toner carrier and developing device
Inventor: AOTO ATSUSHI
IPC: G03G15/08
Filed: 1993-12-21
Abstract: PURPOSE:To obtain a toner carrier without having remaining or accumulation of electric charges and not generating an afterimage, capable of imparting a sufficient extent of electrostatic charge to a toner and satisfactorily transferring the toner, and to provided a developing device using the toner carrier. CONSTITUTION:The surface layer (electric conductor layer 52) of this toner carrier 5 is made of a mixture of at least epichloorohydrinethylene oxide copolymer rubber with an org. compd. having an ether-contg. bond, an ester-contg. bond, an acrylic group or halogen.
Patent JP-H06276107-A (JP)
Title: Synchronization detecting system of viterbi decoder
Inventor: TODOROKI TOSHIYA
IPC: H04L7/04
Filed: 1992-12-25
Abstract: PURPOSE:To control a viterbi decoder to quickly come into a synchronizing state in the case of being in a non-synchronizing state by detecting the synchronization/non-synchronization of the viterbi decoder. CONSTITUTION:A branch value output circuit 9 obtains a branch value between transition by investigating a state value before transition to the state by one time through the use of a maximum path metric state value obtained at the time of viterbi decoding. A correlation device 14 outputs a correlating value by taking correlation between the branch value and reception data. A synchronization/non-synchronization judging circuit 16 judges the synchronization/non-synchronization based on the correlating value. At the time of judging the non-synchronizing state, the synchronization/non-synchronization judging circuit 16 provides a phase control signal for a phase converter 11, which changes the phase of soft judgement reception data in reponse to the phase control signal. The operation is repeated till the synchronization/non- synchronization judging circuit 16 judges synchronization.
Patent JP-H11170804-A (JP)
Title: Bearing device for wheel
Inventor: DEGUCHI MASARU
IPC: F16C19/18
Filed: 1997-12-16
Abstract: PROBLEM TO BE SOLVED: To miniaturize a bearing part on the whole, maintain the hardness of a raceway surface, and schieve the crack-free welding by forming an outer ring of a constant velocity joint and a hub of cemented steel, press-fitting a cylindrical part of the hub together with the outer ring of the constant velocity joint, and achieving the welding along a fitting part. SOLUTION: A bearing device for wheel comprises an outer ring 1 of a constant velocity joint, a hub 2, and an outer ring 4 to be mounted on a vehicle body side. After an outside diameter part of a cylindrical part 1a of an end part on the hub 2 side of the outer ring 1 of the constant velocity joint is press- fitted to an inside diameter part of a cylindrical part 2b of the hub 2, and welded thereto along a fitted part. The outside diameter of the cylindrical part 2b of the hub 2 and the inside diameter of the outer ring 4 can be smaller than the diameter of the outer ring 1 of the constant velocity joint by forming raceway surfaces 4b, 4c on an inner circumferential surface of the outer ring 4. The outer ring 1 of the constant velocity joint and the hub 2 are formed of a material capable of carbonizing-hardened.  After the carbonizing-hardening is achieved using cemented steel, and then, the welding is achieved, hardness is ensured, and the crack-free welding can be achieved.
Patent JP-H06193860-A (JP)
Title: Method of luminous flame generating combustion
Inventor: NAKAMURA TSUNEAKI
IPC: F23K5/08
Filed: 1992-12-25
Abstract: PURPOSE:To contrive high efficiency combustion due to the increase of the luminance of flame as well as low-NOx combustion due to the decrease of the temperature of the flame by a method wherein a furnace body is provided with two sets of burners provided with an air preheat accumulating body and a fuel preheat accumulating body respectively while these burners are burnt alternately through a switching device. CONSTITUTION:When a burner 6 in one side of a furnace body 1 is under burning condition, exhaust gas is branched to the air preheat accumulating body 3 and a fuel preheat accumulating body 5 of the other side, then, is joined again so as to be discharged through a switching device 8, a flow rate regulator 9, a suction blower 11 and an exhaust gas treating device 13. When the flowing direction of air for combustion is changed by the switching device 8, the air for combustion is passed through the air preheating body 3. On the other hand, when a switching valve 14 is switched from the side of the suction blower 11 of one side to the side of supplying fuel while other switching valve 15 is switched from the side of the burner 6 of one side into the side of the other burner 7, fuel is heated in the fuel preheat accumulating body 5 of the other side to the high temperature of 1000 deg.C or high and, thereafter is mixed with the air for combustion, which is preheated in the air preheat accumulating body 3, and is burnt.
Patent JP-H06197526-A (JP)
Title: Electronic equipment
Inventor: KUROGANE HIDEJI
IPC: H02J7/00
Filed: 1992-12-25
Abstract: PURPOSE:To provide portable electronic equipment with which a high efficiency can be obtained irrespective of its power supply battery. CONSTITUTION:A CUP 9 detects the voltage of a battery 1 and changes the oscillating frequency of an oscillation circuit 8 by switching transistors Tr1-Trx in accordance with the detected voltage of the battery 1 so as to make a DC-DC converter incorporating a switching transistor 7 to operate with the maximum efficiency.
Patent JP-H0776631-A (JP)
Title: Expanded polystyrene sheet for molding
Inventor: HASEGAWA TAKESHI
IPC: C08J9/12
Filed: 1993-12-22
Abstract: PURPOSE:To provide the sheet improved in brittleness, enabling itself to be suppressed to thin-wall form and low expansion ratio, and good in appearance and the working environment in its production. CONSTITUTION:The sheet for producing thin-wall molded products is 0.1-0.9g/cm<3> in density and 0.3-3mm in thickness and comprises (A) 0.5-10wt.% of a modified polyolefin and (B) a polystyrene-based resin.
Patent JP-H06194954-A (JP)
Title: Image forming device using recovered toner
Inventor: HYO ICHIRO
IPC: G03G15/08
Filed: 1992-12-25
Abstract: PURPOSE:To obtain a satisfactory image free of soiling of base by returning developer, which has been removed by a cleaner used for removing the residual developer from an image carrier, to a second development device. CONSTITUTION:A toner image formed on the photoreceptor 2 by a first development device 14 is transferred and fixed to transfer paper at a transfer station 6, and then the paper is ejected out of the device. The toner remaining on the photoreceptor 2 after transfer is recovered by the cleaner 8. The toner recovered in the cleaner 8 is recycled for prescribed development after carried by means of a carry screw pipe 11 to the toner hopper part 17 of a second development device 15 which is formed small for the purpose of the miniaturization of the entire device and which is arranged further upstream than the first development device 14 in order to use space effectively in relation to the location of the first development device 14. At this time, the first development device 14 and a toner hopper 16 contain only fresh toner, and the second development device 15 and the toner hopper 17 contain only the recovered toner.
Patent JP-H07190636-A (JP)
Title: Frame mold for applying castable refractory and applying method of castable refractory, which employs this frame mold
Inventor: YAMAMURA TAKASHI
IPC: F27D1/16
Filed: 1993-12-24
Abstract: PURPOSE:To prevent the generation of crack and the like in castable refractory applying work upon heating curing by a method wherein a multitude of openings, whose individual area is predetermined, are provided on the surface of a frame mold, which is contacted with castable refractory, and a ratio of total area of openings to the area of surface of frame mold, which is contacted with the castable refractory, is specified. CONSTITUTION:The surface of a frame mold 1, which is contacted with castable refractory 5 for lining the liner of the mold frame 1, is provided with a multitude of openings 2. The individual area of the openings 2 is specified so as to be 10cm<2> or less. The total area of the openings 2 is designed so as to be 0.3-40% with respect to the area of the surface of the frame mold 1, which is contacted with the castable refractory 5. In this case, the openings 2 can be filled with heat resistant material having an air permeability higher than that of the castable refractory 5.
Patent JP-2001165917-A (JP)
Title: Method and apparatus for inspecting piping
Inventor: YAMAOKA SEIJI
IPC: F16L55/00
Filed: 1999-12-07
Abstract: PROBLEM TO BE SOLVED: To provide a method and an apparatus for inspecting piping capable of allowing an inspection instrument to run through a piping while holding the same in an allowable range, regardless of the state of the piping. SOLUTION: In the piping inspecting method feeding a fluid through a pipeline 1 under pressure from the upstream side of the pipeline to the downstream side thereof to allow an inspection pig P to run to perform inspection, the pressure on the downstream side of the inspection pig P is detected, and the flow rate of the fluid fed under pressure on the downstream side of the pig is controlled, so as to be increased when the pressure on the downstream side is lowered but is reduced, when the pressure on the downstream side is raised.
Patent JP-H07190261-A (JP)
Title: Housing type pipe joint
Inventor: KIMURA ZENSHI
IPC: F16L21/06
Filed: 1993-12-24
Abstract: PURPOSE:To easily connect pipes even in a work field for piping installation, without need of welding the pipes to be connected or processing them for rolling-grooves. CONSTITUTION:In a housing-type pipe joint, a ring-like gasket 12 is laid on outer peripheries of ends of pipes 1, 1 to be connected. A pair of housings 3 are connected the to fixed to each other under the state to hold the gasket 2. Projections (d) are formed respectively on the housing 3, to be engaged with through-holes 9 punched on pipe walls to the pipes 1, 1.
Patent JP-H07179599-A (JP)
Title: Method for synthesizing aromatic polymer
Inventor: TAKEUCHI KAZUHIKO
IPC: C08G69/28
Filed: 1993-12-24
Abstract: PURPOSE:To rapidly produce an aromatic polyamide useful for engineering plastics, etc., by reacting an aromatic dihalide compound with a diamino compound in the presence of a cobalt-phosphine complex and a basic substance in the atmosphere of CO gas. CONSTITUTION:An aromatic dihalide compound of formula: X1-Ar-X2 (X1, X2 are independently Br, I; Ar is aromatic group) is reacted with a diamino compound of formula: H2N-R-NH2 (R is hydrocarbon group) in the presence of a cobalt-phosphine complex and a basic substance in the atmosphere of carbon monoxide to obtain an aromatic polyamide of the formula. A polycondensation reaction through a carbonylation process proceeds rapidly.
Patent JP-2001163018-A (JP)
Title: Pneumatic tire
Inventor: IKEDA AKIO
IPC: B60C13/02
Filed: 1999-12-07
Abstract: PROBLEM TO BE SOLVED: To provide a pneumatic tire allowing to suppress bare easily generated on a tire surface in a tip of a bead apex in vulcanizing and molding the tire. SOLUTION: This pneumatic tire is provided with a tread part, side wall parts extending inward in the radial direction of the tire on both sides of the tread part, and a bead part provided to a tire radial direction inner end part of the side wall part with comprising a bead core, and also provided with the bead apex extending outward in the radial direction of the tire from the bead core. A surface of the side wall part is provided with a vent line extended in the circumferential direction near the tip of the bead apex to discharge air in vulcanizing and molding, and also provided with a recessed part ranging outward in the radial direction of the vent line and extending in the circumferential direction with a depth of 0.15 mm or more.
Patent JP-H07187977-A (JP)
Title: Composition for oral cavity
Inventor: SUGANO HIDEAKI
IPC: A61K8/49
Filed: 1993-12-24
Abstract: PURPOSE:To obtain a composition for oral cavity having excellent stability of an enzyme, strong mildew-proofing effect and an excellent feeling in use by mixing a composition for oral cavity comprising an enzyme as an active ingredient with a mildew-proofing component. CONSTITUTION:This composition for oral cavity is obtained by mixing a composition for oral cavity containing an enzyme (e.g. dextranase) as an active ingredient with 0.005-10wt.%, based on the total composition, of one or more selected from aliphatic aldehyde of the formula R-CHO (R is a 5C alkyl or alkenyl), acetals of an aliphatic aldehyde of the formula (R<1> and R<2> each is a 1-3C alkyl, a 2-3C alkenyl, etc.) and hinokitiol as a mildew-proofing component. The composition is prepared into dentifrice such as toothpaste, liquid dentifrice, wet dentifrice or tooth powder, a mouth washing agent, a mouthwash, a troche, pasta for oral cavity, chewing gum, a solid oral refreshing agent, a gargling tablet, etc., and used for preventing and treating diseases of oral cavity.
Patent JP-H06199746-A (JP)
Title: Production of alkanolamine compounds
Inventor: WATABE YASUYOSHI
IPC: C07C213/04
Filed: 1992-12-28
Abstract: PURPOSE:To provide a method for producing yield alkanolamine compounds, capable of increasing the yield of a monoalkanolamine in the alkanolamine compounds, capable of recovering and recycling carbon dioxide used in the reaction and unreacted ammonia, and capable of industrially producing the alkanolamine compounds at an advantageous cost. CONSTITUTION:The method for producing alkanolamine compounds comprises reacting ammonia with an alkylene oxide in the presence of an ammonium carbonate salt to produce the alkanolamine compound, separating and recovering a gas eous components consisting mainly of ammonia and carbon dioxide and subsequently recycling the recovered gases through the reaction system.
Patent JP-H10189785-A (JP)
Title: Semiconductor device and manufacture thereof
Inventor: OTOBE YURI
IPC: H01L27/06
Filed: 1996-12-26
Abstract: PROBLEM TO BE SOLVED: To enable free changes in design of the size of a low-concentration drain diffusion layer in an LDD(lightly doped drain) structure without causing any change in characteristics of other transistors. SOLUTION: In a semiconductor layer 17 of a first conductivity type, a MOS filed-effect transistor 4 having an LDD structure inducing high-concentration source and drain diffusion layers and a low-concentration drain diffusion layer is formed. In the semiconductor layer 17, a static induction transistor 3 which has a source layer 14 and a collector layer 11 of the first conduction type, a channel layer 13 made of a low-concentration diffusion layer of a second conduction type, and a gate layer 12 made of a high-concentration diffusion layer of the second condition type is formed. High-concentration source and drain diffusion layers 23, 24 having the same distribution of impurity concentration as the gate layer 12 of the static induction transistor 3 are simultaneously formed by a gate layer forming process for the static induction transistor 3.  A low-concentration drain diffusion layer 25 having the same distribution of impurity concentration as the channel layer 13 is simultaneously formed by a channel layer forming process.
Patent JP-H07190357-A (JP)
Title: Nozzle valve device of gas lighter
Inventor: YOTSUYA TSUTOMU
IPC: F23Q2/16
Filed: 1993-12-27
Abstract: PURPOSE:To provide a nozzle valve device having a simple configuration in which a cooperating component such as a fulcrum lever is not required, its assembling and adjusting characteristic is superior and a valve opening characteristic is also superior. CONSTITUTION:There is provided a holding spring 19 for lifting up and holding a burner nozzle 11 arranged to be freely ascended or descended in a gas passage reaching from a fuel tank 1 to a burner. An opposing valve member 12 is installed from above at a valve seat 9 arranged at the burner nozzle 11 and also there is provided a nozzle spring 14 for seating and holding the valve member 12 against the valve seat 9. There are provided a pressing rod 20 opposing against the valve member 12 with the valve seat 9 being held thereagainst, and an operating member 18 for depressing the burner nozzle 11 against the holding spring 19 and floating the valve member 12 away from the valve sear 9 under an operation of the pressing rod 20.
Patent JP-H05155024-A (JP)
Title: Ink jet recording head
Inventor: TABATA SHINJI
IPC: B41J2/16
Filed: 1991-12-06
Abstract: PURPOSE:To improve the jet directional properties of ink droplets by realizing the structure of a flow path in which an ink discharge orifice can be constituted using a material having the same degree of wetting properties. CONSTITUTION:A pit layer is provided on a heater substrate 1, and the pit layer is composed of the first pit layer 2a and the second pit layer 2b. The second pit layer 2b is formed using Si. A channel substrate 4 consists of a channel part or an ink reservoir 5 formed on an Si wafer using an anisotropic etching process. After adhering these two substrates, they are cut and subsequently, a recording head is manufactured. A material encircling a nozzle 3 is entirely Si, and therefore, its wetting properties are identical across the area of the material. Thus it is possible to make the jet directional properties of ink droplets stable.
Patent JP-H11104234-A (JP)
Title: Medical instrument having branch part and its production
Inventor: KAWANO TAKUMI
IPC: B29C65/02
Filed: 1997-12-03
Abstract: PROBLEM TO BE SOLVED: To enable the high-reliability connection of a tube-shaped member by welding the bottom part of the tube-shaped member to the top wall surface of a main tube extruded at a high temperature, afterwards, welding the tube- shaped member and the main tube while sucking the main tube through the tube-shaped member, and forming a main tube hole. SOLUTION: The main tube is formed by extruding a constitutive material 4 from the nozzle of a metallic die 2 while extruding a fused resin from an extruder 2 into the metallic die 2. When molding such a main tube 4, a bottom member 13a is carried and welded onto the base of the tube 4 by a supplier 3a of the bottom member 13a at a mixed pouring part. Besides, by driving a suction pipe 10 back and forth, the bottom part of a tube-shaped member 8 held at its tip part is contacted on the top wall surface of the tube 4. Then, by sucking the top wall surface of the tube 4 with the sucking force of a suction pump 9, a hole 11 is formed on the top wall surface of the tube 4 with no step while strongly welding the tube-shaped member 8 and the tube 4.
Patent JP-2001166601-A (JP)
Title: Image forming device
Inventor: TAKAHASHI MITSURU
IPC: G03G15/16
Filed: 1999-12-08
Abstract: PROBLEM TO BE SOLVED: To provide an image forming device capable of forming an image of high quality free from the positional deviation of images by preventing a reading error in a mark sensor caused by the waving of a belt-like member with a position detecting mark. SOLUTION: The device is provided with a pressurizing member 540 which is arranged near the mark sensor 530 and for pressurizing an intermediate transfer belt 501 as the belt-like member between a holding member (primary transfer bias roller) 507 and a holding member (belt driving roller) 508.
Patent JP-H09160540-A (JP)
Title: Peg mechanism for stringed instrument
Inventor: GOTOU MASAKATSU
IPC: G10D3/14
Filed: 1995-12-08
Abstract: PROBLEM TO BE SOLVED: To enable the frictional resistance of a string-winding shaft to the interior wall of a hole to be adjusted without causing sliding of the shaft every time adjustment is made. SOLUTION: Pairs of opposite holes 24, 25 are provided in a pair of supports 21, 22 by a required number, with the first-end side hole 24 tapered on its inner surface, and a winding shaft 30 is mounted in the pair of holes 24, 25, the shank 31 of the winding shaft 30 having a tapered face that fits the first-end side hole 24. Further, a tightening ring 34 divided by a slit 341 in mounted on the tapered surface, and a locking member 32 which locks into the second-end side hole 25 and supports the shank 31 so that it freely rotates, and an adjusting screw 33 which moves the shank 31 axially with the locking member as a fulcrum are mounted on the end of the shank 31, so that the frictional force of the inside of each hole against the shank 31 is adjusted by moving the shank 31 using the adjusting screw 33 to increase or decrease the bore of the tightening ring.
Patent JP-2000136325-A (JP)
Title: Rust-inhibiting coating material and rust-inhibiting surfacer
Inventor: SHIGA TAKUO
IPC: C09D7/12
Filed: 1998-11-02
Abstract: PROBLEM TO BE SOLVED: To obtain a composition having the effect of inhibiting and preventing rusting by adding a tannin (a polyphenol) to a coating material or a surfacer. SOLUTION: A tea catechin extract in an amount of 0.2 wt.% based on the coating material is added to a commercially available coating material, and the mixture is well agitated. The extract is used in the form of an aqueous solution when the coating material is a water-based one and is used in the form of an alcohol solution when it is a non-water-based one. Alternatively, a commercially available coating material is mixed with a 1% equivalent amount of an ethyl alcohol solution containing 5% tannic acid. It is also possible that it is applied to a rusted area or as a freshly applied coating material. Further, a surfacer is prepared by mixing 10 g of ethyl alcohol with 0.1 g (in terms of the catechin) of a tea catechin extract, 0.05 g of a polyvinyl alcohol, and 5 g of water.  The effect of inhibiting and preventing rusting can persist because the tannic acid penetrates deeply into the rust in a rusted surface of an iron material, fixes the rust by complexing, and fixes not only the surface rust but also the inside rust to prevent its propagation.
Patent JP-H06145997-A (JP)
Title: Electroless gold plating liquid
Inventor: KATO MASARU
IPC: C23C18/44
Filed: 1992-11-13
Abstract: PURPOSE:To greatly improve a plating speed by using the electroless gold plating liquid which is specified in components consisting of chloroauric acid, sulfurous acid, etc. CONSTITUTION:This plating liquid contains 0.001 to 0.10mol/l gold salt, 0.01 to 1.0mol/l Na sulfite, 0.01 to 1.0mol/l Na thiosulfate, 0.01 to 1.0mol/l Na phosphate, 0.001 to 1.0mol/l ascorbic acid or its Na salt and/or 6X10<-7> to 3X10mol/l as 2-mercaptobenzothiazole, 6-ethoxy-2-mercaptobenzothiazole, 2- mercaptobenzimiclazole or 2-mercaptobenzooxazole and 0.0001 to 0.05mol/l alkylamine compd. Its pH of the liquid is preferably 6 to 8 and its operating temp. is 55 to 65 deg.C.