baber/WOPTO huggingface dataset:
Patent JP-H02290313-A (JP)
Title: Logarithmic amplifier circuit
Inventor: NAGAO TAKASHI
IPC: H03M1/12
Filed: 1989-02-17
Abstract: PURPOSE:To obtain circuit not affected with temperature and frequency by applying A/D conversion to an output signal of an analog arithmetic amplifier circuit, and reading a logarithmic transformation value measured and stored accurately in an address corresponding to the output, temperature and frequency from a memory. CONSTITUTION:An amplified output V2 of an analog logarithmic amplifier circuit AL of an input V1 is converted into a digital signal (a) via an A/D converter circuit. Moreover, a temperature detection element is provided near the circuit AL and a temperature code generator TC generates a digital code signal (b) in response to the detected temperature. Furthermore, a digital code generating circuit FC generates a digital code (c) corresponding to the frequency region. Then an accurate logarithmic transformation value is read from a memory MEM the address of which in response to the codes a, b, c the value measured accurately is stored in advance. Thus, the circuit not affected by temperature and frequency is obtained.
Patent JP-H08265603-A (JP)
Title: Image control signal output device between digital encoder and frame buffer
Inventor: MINAMI HEITOKU
IPC: H04N5/217
Filed: 1996-02-26
Abstract: PROBLEM TO BE SOLVED: To provide a video control signal output device between a digital encoder and a frame buffer, which outputs a precise control signal and can control the input/output of video data stored in a frame memory, without adjusting work by means of the occurrence of errors owing to a phase difference or a temperature change and deviation between parts by synchronizing the control signal outputted from the digital encoder with a horizontal driving signal so as to output them. SOLUTION: A digital video processing system containing the digital encoder outputting a field signal, a vertical driving signal and the horizontal driving signal for using video data stored in the frame memory is provided with a field signal processing means 24 outputting the field signal outputted from the digital encoder with the synchronism of the inputted horizontal driving signal and a vertical blank signal output means 25 processing the vertical driving signal outputted from the digital encoder by the synchronism of the horizontal driving signal and outputting the pertinent vertical blank signal.
Patent JP-S53123325-A (JP)
Title: Manufacture of high tensile steel
Inventor: MATSUURA HAJIME
IPC: C21D8/00
Filed: 1977-04-02
Abstract: PURPOSE:To minimize surface cracking of a slab in continuous casting and surface defects after hot rolling by adding a specified amt. of Ti to high strength, high toughness steel contg. Nb or Nb-V and controlling the initial rolling reduction of hot rolling to 15% or below.
Patent JP-S59164878-A (JP)
Inventor: FUKUMITSU KENJI
IPC: F26B17/32
Filed: 1983-03-08
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-S62208315-A (JP)
Inventor: YAMADA MASATOSHI
IPC: B65B13/02
Filed: 1986-02-22
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-S54131688-A (JP)
Title: Preparation of crosslinked polyester resin
Inventor: URASAKI TAKANORI
IPC: C08J7/00
Filed: 1978-04-03
Abstract: PURPOSE: To obtain a crosslinked polyester having improved mechanical properties, heat and chemical resistance, by emitting radiant rays to a specific linear block copolyester.  
     CONSTITUTION: A specific linear block copolyester, comprising 20W80 wt.% of a polyoxyalkylene glycol and/or an aliphatic polyester having an average molecular weight of 300W5,000 and a ratio between the numbers of carbon and oxygen of 2.0W4.5 as soft segments and 80W20 wt.% of an aromatic polyester as hard segments, and 0.1W10 mol% based on the total acid component forming the polyester of a compound shown by the formula I or II [R 1W4  are the same or different H or organic group having no ester-forming functional group; A and B are carboxyl groups or hydroxyl groups; both m and n are 1W2 respectively (when A and B are hydroxyl, both A and B are 1 respectively); both K and l are 0W2 respectively and k + l are 2] having two ester-forming functional groups, is irradiated by 0.1W100 Mrad of radiant rays of wave length not more than 300 Å. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S58167163-A (JP)
Title: Oriented film for heat seal multilayer packing and its manufacture
Inventor: JIYON RARUFU WAGUNAA JIYUNIAA
IPC: C08J7/043
Filed: 1983-03-08
Abstract: An oriented multilayer heat sealable film structure comprising a polyolefin film substrate, a layer of a random copolymer of ethylene and propylene, a primer layer on said copolymer layer and a layer of heat sealable vinylidene chloride polymer on said primer layer. The method of preparing said structure includes aging said structure at a temperature and for a time resulting in increased heat seal strength.
Patent JP-S625967-A (JP)
Title: Pyridazinone derivative
Inventor: MUTSUTO MOTOO
IPC: C07D405/12
Filed: 1986-02-22
Abstract: NEW MATERIAL:The 3(2H)pyridazinone derivative of formula I [R1 is H or alkyl; R2 is H, alkyl, Cl or Br; A is NR3 (R3 is H or alkyl) or O; X is (CH2)n, CH(OR4) (n is 1-4; R4 is R3), etc.; when X is (CH2)n or single bond, B is O, S, NH, etc., and when X is CH(OR4), B is O, S, NH, OSO2, etc.; Y1-Y3 are H, alkyl, alkenyl, halogen, OR5 (R5 is R3), etc.] and its salt. EXAMPLE:4-Chloro-5-[2-(4-methoxyphenyl)ethylamino]-2-ethyl-3(2-H)-pyri dazinone. USE:It has anti-SRS-A activity and is useful as an antiallergic agent. PREPARATION:The compound of formula I can be produced e.g. by reacting the compound of formula II (Z is Cl or Br) with the compound of formula III in the presence of a dehydrohalogenation agent, reacting the product with a halogenation agent, etc., in the presence of a dehydrohalogenation agent, and reacting the result compound of formula IV (T is Cl, Br, etc.) with the compound of formula V.
Patent JP-H10231152-A (JP)
Title: Artificial lightweight aggregate and production thereof
Inventor: SAKAI TAKASHI
IPC: C04B18/16
Filed: 1997-02-21
Abstract: PROBLEM TO BE SOLVED: To obtain a low-specific gravity, non-water absorbing and high-strength artificial lightweight aggregate. SOLUTION: This artificial lightweight aggregate is obtained by forming only one cavity 2a disappearing by baking in nearly the center of a sintered compact 1 made of an industrial waste as a main raw material, forming a sintered compact shell 3 covering the cavity 2a disappearing by baking and further forming a nonporous covering layer 4 covering the whole outer surface of the sintered compact shell 3. The aggregate has a specific gravity within the range of 0.8-1.6, a water absorption coefficient within the range of <=1.0%, and a collapse strength within the range of 1-1.6kN.
Patent JP-H07250397-A (JP)
Title: Echo cancellation method and equipment embodying this method
Inventor: TANAKA MASAFUMI
IPC: H04R3/02
Filed: 1994-03-09
Abstract: PURPOSE:To improve the sound quality by calculating correlation or covariance between received sound signals and detecting a double talk state based on the value. CONSTITUTION:A correlation calculation section 25 calculates the correlation or the covariance of sound signals received by a microphone array 24 and a double talk discrimination section 27 detects a double talk state based on information and other signal obtained by an analysis section 26. The correlation or the covariance depends on a state that a sound source consists of a speaker 23 only or a double talk state having a near end sound. A set of the correlation and the covariance is considered as one pattern and the pattern is compared with a pattern of the correlation and co-variance in the non-double talk state to detect the double talk state. The correlation and the covariance in the non-double talk state only with a speaker output are obtained when an echo is cancelled in an excellent way. The technology for pattern identification is utilized for the comparison of the pattern of the correlation and the covariance. The pattern identification technology is utilized for the comparison of the pattern of the correlation and the covariance. Thus, the detection time is reduced and the disturbance of an impulse response estimate is reduced to improve the sound quality.
Patent JP-H10230750-A (JP)
Title: Hydraulic piping of management work vehicle for riding
Inventor: SAITO TAKEHIDE
IPC: B60K17/10
Filed: 1997-02-21
Abstract: PROBLEM TO BE SOLVED: To resolve a trouble that mission oil stays in the insides of a transmission case and axle cases at both the right and left sides because the whole length of each hydraulic pipe becomes long, and its pipe line resistance is increased, where respective return pipes have to be extended to the center side when a HST type transmission section and a control valve are distributed to the right and left sides. SOLUTION: A HST type transmission section H is disposed at either place of the right or left side of a mission case M to change the motive force of an engine E in speed so as to transmit it to each wheel, concurrently, a control valve 211 controlling the action of a hydraulic actuator, is disposed to the other side of the right and left sides of the mission case, mission oil is fed out of a suction port provided for the mission case to the control valve and the HST type transmission section through a hydraulic pump, and its return oil is so designed as to be returned to a return port arranged in a position parted from the aforesaid suction port.
Patent JP-H03243785-A (JP)
Title: Electrocasting device
Inventor: TSUTSUMI TAKAYOSHI
IPC: C25D17/00
Filed: 1990-02-21
Abstract: PURPOSE:To stabilize the composition of an electrocasting soln. at all times, to prevent the contamination of the device with the soln. and to produce a high quality stamper for forming an information recording medium such as an optical disk by electrocasting by closing the electrocasting tank to prevent the soln. from being exposed to air and providing a tank filter and a soln. regulating tank. CONSTITUTION:A holder 8 for a glass master disk 9' obtained by forming a conductive film on a glass master disk on which minute rugged patterns such as tracking grooves and information pits are formed is dipped in a nickel sulfamate electrocasting soln. 3 contg. Ni chips 1, a current is applied with the chip 1 as an anode and the conductive film of the disk 9' as a cathode to electrodeposit Ni on the conductive film, and a stamper for forming an information recording medium is produced. In this case, the part of a shaft 7 of the holder 8 entering the electrocasting tank 2 is formed with a flexible hatch 16 to prevent the intrusion of air, the impurities contained in the soln. 3 are removed by the tank filter 11, and the soln. composition is adjusted to normal at all times by the original soln. in the tank 12. The device is not contaminated due to the oxidation of the soln. or the leakage of the soln. outside the electrocasting tank 2, and a high quality stamper is stably produced at all times.
Patent JP-S55130333-A (JP)
Title: Residual stress control method of spiral steel pipe and control unit thereof
Inventor: NISHIMURA MASAYA
IPC: B21C37/12
Filed: 1979-03-30
Abstract: PURPOSE: To accurately obtain the steel pipe of the specified residual stress and radius of curvature without any influence such as of variations in the yield point of steel plates by controlling the curved roll position adjustment of an outside circumference restraining type pipe making machine by the stress-strain curve approximate formula of steel plates and rolling reduction other than the target radius of curvature.  
     CONSTITUTION: A steel plate P is curved to the required initial radius of curvature ρ c  by rools 1W 3 and is restrained and held by a roll 4, then its adjoining edges are welded to themselves, whereby the steel plate is made to a pipe continuously. The distances LA, LB between the centers of rolls and the roll 1 screw-down force W are inputted to a memory arithmetic part 16. Now, to obtain a steel pipe of the target radius of curvature of ρ 0  and a minimum of residual stress simply necessitates minimizing the radius ρ c . Based on the radius ρO, the arithmetic part 16 operates the radius ρ c , then the distances lA, lB from the stress-strain curve approximate formula of steel plates and the foregoing input and further rolling reduction VA, VB. The roll 1W3 relative positions are so set that the rolling reductions become the foregoing values, by means of jacks 9, etc. by the corresponding signals. The steel plate is curved to the minimum ρ c , spring-backs between the rolls 3, 4 and is made to the steel pipe of minimum residual stress at the radius ρO. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H03243630-A (JP)
Title: Fire resistant heat-shrinkable tube
Inventor: YAMADA MAKOTO
IPC: B29C61/06
Filed: 1990-02-20
Abstract: PURPOSE:To obtain the subject tube having resistance to fire with stability for a long period of time without generation of toxic gas by molding a composition comprising a base resin and a specific amount of ethylene bis-tetrabromo- phthalimide. CONSTITUTION:The aimed tube is obtained by molding a composition composed of 100 pts.wt. base resin (e.g., PE, PS, PP, EVA or EEA) and 10-70 pts.wt. ethylene bis-tetrabromo-phthalimide and preferably 10-70 pts.wt. brominated polystyrene.
Patent JP-H01215199-A (JP)
Title: Manufacture of bobbin for voice coil
Inventor: KIMURA GENZO
IPC: H04R31/00
Filed: 1988-02-23
Abstract: PURPOSE:To keep roundness and to preclude possibility in deformation in a specific direction by applying braiding or cross spiral winding to lots of fibers or thin tapes onto an outer circumference of a core whose cross section is circular and fixing them by a resin to form a cylinder and cutting off the cylinder so as to obtain a bobbin. CONSTITUTION:Lots of fibers 32 or thin tapes are braided or wound crossingly in spiral onto the outer circumference of the core rod 31 whose cross section is circular, they are fixed by a resin 33 to form a cylinder 35, the cylinder 35 is cut off to a required length to obtain a bobbin 43. Thus, the lots of fibers 32 or thin tapes are formed into a cylinder and solidified by the resin 33, then no orientation of the material exists in the state of the bobbin 43. Thus, there is no possibility of deformation in a specific direction and the fibers 32 and the resin 33 are formed as a composite, then strength is obtained and roundness is endured.
Patent JP-S62196458-A (JP)
Title: Transmission for working machine such as snowplow
Inventor: MATSUSHITA YORIO
IPC: F16H15/06
Filed: 1986-02-24
Abstract: PURPOSE:To reduce the slippage of both frictional boards when the speed reduction ratio is high by providing a drive and a driven frictional boards with the axes thereof crossing perpendicularly each other wherein one frictional board is provided with a conical projection in the center of the rotary face thereof and jointed frictionally with the other frictional board on the outer circumferential face thereof. CONSTITUTION:A metallic drive frictional board 32 is fixed slidably only in the axial direction to the rear end of an input shaft 27 being driven through a V-belt entraining means 22 and a driven frictional board 35 is fixed slidably only in the axial direction to an output shaft 33 crossing perpendicularly with the input shaft 27. A circular rotary face 32a of the drive frictional board 32 is jointed frictionally to the outer circumferential face 36a of the driven frictional board 35 so as to enable the transmission of power from the drive frictional board 32 to the driven frictional board 35. When jointing the outer circumferential face of the drive frictional board 32 and the outer edge section 36b of the rotary face of the driven frictional board 35 frictionally, the output shaft 33 can be rotated with high speed. Here, a conical projection 32b is provided in the center of the rotary face of the drive frictional board 32 so as to enable the frictional joint between the outer circumferential face thereof and the driven frictional board 35.
Patent JP-S51113220-A (JP)
Title: Formation of cave for leading pipe.
Inventor: KUROKI YASUO
IPC: F16L5/00
Filed: 1975-03-31
Abstract: PURPOSE: Easy formation of a cave for purpose of thrusting into a wall when joint of pipe with a cock or branch pipe is necessary. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-S54130443-A (JP)
Title: Manufacture of zinc plated steel sheet
Inventor: HINOTANI SHIGEHARU
IPC: C23C2/06
Filed: 1978-03-31
Abstract: PURPOSE:To prevent galvanizing blister and enhance the quality of a galvanized steel sheet by reducing a steel sheet and holding it at a suitable temp. in a weakly reducing atmosphere of lowered hydrogen press. to dehydrogenate the sheet, followed by galvanizing. CONSTITUTION:A hot rolled steel sheet is pickled, heat treated, reduced, and held at 450-550 deg.C in a weakly reducing atmosphere consisting of 8-20% H2 and 92- 80% N2 to dehydrogenate the sheet, followed by dipping in molten zinc. By this method hydrogen occluded in the sheet is released to a low equilibrium concn. in the reducing atmosphere, so galvanizing blister can be prevented perfectly, thereby improving the quality of a galvanized steel sheet and enhancing the yield.
Patent JP-H09224928-A (JP)
Title: Computerized tomography system
Inventor: EERITSUHI HERU
IPC: A61B6/03
Filed: 1997-02-24
Abstract: PROBLEM TO BE SOLVED: To allow free access to a patient for treatments during photographing without the need to move the patient out of a photographic position by improving a computerized tomography system having a ring-shaped X-ray tube surrounding a measuring field. SOLUTION: In a computerized tomography system of the type having a ring-shaped anode 6, electron beams 8 can be deflected over the ring-shaped anode in order to produce X-rays in the form of a fan rotatable about a system axis 12, and a treatment bed 4 for a patient is placed within a measuring field. A ring-shaped X-ray tube 5 is designed as a partial ring, and a casing 1 accommodating the ring-shaped X-ray tube 5 has an opening 2 on one side, the opening 2 being aligned with an opening in the ring-shaped X-ray tube 5 to allow access to the patient from one side.
Patent JP-H08232008-A (JP)
Title: Steelmaking method in converter
Inventor: YAMASHITA KOSUKE
IPC: C21C7/068
Filed: 1995-02-27
Abstract: PURPOSE: To enable dephosphorization at high temp. and to improve desulfurizing efficiency by blowing powdery flux together with oxygen from an oxygen top-blowing lance during blow-refining and promoting the slag-making. CONSTITUTION: Molten iron 2 of a blast furnace is charged into a converter 3 with a molten iron ladle 1 together with scrap 4 and a molded pig iron 5. The flux 6 mainly containing lime is added on the molten iron 2 and the oxygen is top-blown from the oxygen top-blowing lance 7, and N2 and O2 +LPG is bottom-blown from a bottom-blowing device 9, and while controlling the slag 9, P and S in the molten iron are reduced by dephosphorization(de-P) and desulfurization(de-S). After removing the slag 9, the decarburization is executed by adding the flux and blowing the oxygen. The produced slag 9 is remained in the converter 3 to tap the steel. This process is repeated and the steelmaking in a conveter is executed.  The powdery flux is blown together with the oxygen from the oxygen top-blowing lance 7 during blow-refining in the de-P and de-S processes and de-P and de-S are facilitated by promoting the slag-making. By this method, the frequency of the occurrence of slopping can drastically be reduced.
Patent JP-H04260454-A (JP)
Title: Roller bracket apparatus of roller mill
Inventor: SATOU KAZUNORI
IPC: B02C15/04
Filed: 1991-02-12
Abstract: PURPOSE:To prevent the vibration of a mill and to use the mill in load over a wide area or many kinds of coals by mounting a spring contracted by the pendulum movement of a roller between a roller bracket and a pressure frame. CONSTITUTION:A roller mill is constituted of a raw material supply pipe 2, a turntable, a seal plate 9, a bracket spring 10, a spring cover 11, a pivot box 12, a roller pivot 13, a pressure frame 14, a spring frame 16, a rotary classifier 17 and a product fine powder discharge duct 18. In this roller mill, by differentiating the spring constant of the bracket spring 10, a lateral shift distance (amplitude of oscillating motion) or a cycle becomes different at every grinding roller even when the load applied to the spring 10 is same at the time of the sudden lateral shift generated in the grinding roller. Therefore, the phase in the oscillating operation of each grinding roller is shifted and the development to violent self-exciting vibration can be prevented.
Patent JP-H04258067-A (JP)
Title: Testing method for communication equipment
Inventor: TANBARA MASAO
IPC: H04L69/40
Filed: 1991-02-12
Abstract: PURPOSE:To simply test plural communication equipments arranged to plural points. CONSTITUTION:A communication network interface section is eliminated from each communication equipment and a simulator 9 is connected to a central processing section 2 of each communication equipment while medium processing sections 3 of each communication equipment are interconnected directly, and a signal sequence normally sent/received between the communication network interface section and the central processing section is simulated by the simulator 9 and communicates with each central processing section. Thus, the test in the connection of plural devices is simply implemented.
Patent JP-H11238491-A (JP)
Title: Battery container
Inventor: SHIMIZU NORIYUKI
IPC: H01M50/528
Filed: 1998-02-20
Abstract: PROBLEM TO BE SOLVED: To stably provide a high welding strength with a lead material even in the carrying of a small welding current by forming the surface into a dull finish surface, and setting the surface roughness of the dull finish surface to a specified value. SOLUTION: A surface 1A is formed into a dull finish surface, and its surface roughness (Ra) is set to 0.5-2.0 μm. Thus, the degree of roughing is large, surface projections 1B, when microscopically observed, are microscopically larger than fine projections on a bright finish surface with a rough distribution state, and the number is also small. The contact resistance in the contact interface on the dull finish surface of the surface A is higher than the contact resistance in the bright finish surface. When a wedding current of the same value is carried, the heating value in the contact interface of the dull finish surface is larger than the heating value in the contact interface of the bright finish surface.  Consequently, the weld nugget is surly formed with a larger size to increase the welding strength, and a high welding strength can be stably provided even with a small welding current.
Patent JP-S57152958-A (JP)
Title: Scanning on-demand ink jet printer
Inventor: HONJIYOU TERUBUMI
IPC: B41J2/055
Filed: 1981-03-18
Abstract: PURPOSE:To provide a titled printer which enables deflecting of ink drop, by constituting a device such that an end part of a head incorporating a nozzle can be transformed and is caused to deflect by means of a bimorph vibrator. CONSTITUTION:A part, incorporating a nozzle 4, of a sustrate 200 is formed in a very thin thickness, and through using of a material such as stainless materials, having a high elasticity, as a substrate material, said part is caused to transform in the direction of the thickness of the substrate. A bimorph vibrator 9 is adhered firmly to the outside of the substrate along the nozzle 4, and the direction of the nozzle is deflected based on a drive signal to change a jet direction of ink drop through the nozzle.
Patent JP-S58156577-A (JP)
Inventor: KAWANAMI TOSHIO
IPC: C04B35/48
Filed: 1982-03-11
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。