baber/WOPTO huggingface dataset:
Patent JP-H07299523-A (JP)
Title: Device for forming continuous waveform
Inventor: TAKAHANE NAOKI
IPC: B21D13/04
Filed: 1994-05-02
Abstract: PURPOSE:To provide the device which facilitates the change of pitch for each ridge of a continuous waveform and which also enables fine adjusting. CONSTITUTION:In a device, for forming a continuous waveform, in which gear shaped forming rollers 2, 2, pitch reducing rollers 4, 4 and pitch expanding rollers 5a, 5a are provided in a route for forming a fin 1; a differential mechanism 30, 40 capable of varying a rotary phase is provided at least either in the pitch reducing rollers or the pitch expanding rollers; and the phase of either one of them or both are varied by adjusting the differential mechanism. Thus, the phase of the pitch reducing rollers or the pitch expanding rollers can be varied through the adjustment of the differential mechanism, and the number of ridges of the continuous waveform can be increased or decreased between the rollers, making it possible to change the pitch for each ridge of the continuous waveform.
Patent JP-H0317713-A (JP)
Title: Power-transistor driver circuit having improved short-circuit protective function
Inventor: UIRIAMU FUREDERITSUKU UIISU
IPC: G05F1/56
Filed: 1990-04-10
Abstract: PURPOSE: To prevent the occurrence of the damage caused by a short-circuit by increasing or decreasing the electric conductivity of an insulated gate bipolar transistor in accordance with the voltage between the collector and the emitter of the transistor. CONSTITUTION: Under a normal loading condition, transistors Q2 and Q3 are turned on, the electric conductivity of an insulated gate bipolar transistor(IGBT) 13 is kept large and a low saturated voltage Vcc is maintained. If a load is short-circuited, the potential of a node 38 is increased, becomes higher than the potential of a positive voltage bus 24 and the transistor Q3 is turned off. Thus, a resistor 30 is not branched, the base voltages of emitter-follower transistors Q4 and Q5 are reduced and the gate driving voltage of the IGBT 13 is reduced. Therefore, the electric conductivity of the IGBT 13 is reduced during a short-circuit condition, the IGBT 13 withstands the short-circuit current till a current detector 11 operates and no damage occurs.
Patent JP-2000280903-A (JP)
Title: Axle box support device for railway rolling stock
Inventor: SHIMOMURA TAKAYUKI
IPC: B61F5/30
Filed: 1999-03-31
Abstract: PROBLEM TO BE SOLVED: To prevent separation of laminated rubber, and to improve durability by including a diametrically different plural metallic cylinder bodies arranged in a concentrically circular shape and rubber loaded between the respective cylindrical bodies in the shape of connecting the mutual respective cylindrical bodies in the laminated rubber, and reducing tensile compressive stress to the rubber layer. SOLUTION: A conical rubber type axial spring of a laminated rubber structure includes diametrically different plural metallic cylindrical bodies 12a, 12b, 12c, 12d arranged in a concentrically circular shape and rubber 12e loaded between the respective cylindrical bodies in the shape of connecting the mutual respective cylindrical bodies, and is constituted so as to reduce tensile compressive stress to the rubber layer. That is, since a part corresponding to a metallic plate of the laminated rubber structure is wholly constituted of a first cylindrical body 12a to a fourth cylindrical body 12d, an adhesive state with the rubber 12e holds an excellent shape.  Particularly, since the metallic plate between the rubber 12e wholly becomes the cylindrical body in this way, behavior of the cylindrical body itself is stabilized, and acts so that excess force is not applied between the rubber and the cylindrical body.
Patent JP-2000280770-A (JP)
Title: Vehicular propeller shaft structure
Inventor: ARAKI SHINJI
IPC: B60K17/24
Filed: 1999-03-31
Abstract: PROBLEM TO BE SOLVED: To increase suction quantity of an impact stroke by arranging a movement allowing mechanism for allowing a relative slide movement of a constitutive part of a constant velocity joint when shaft directional force acts on a propeller shaft, and forming a shaft inserting space in a part held by a center support of a joint flange. SOLUTION: A propeller shaft 2 for connecting the transmission side and the differential side of a vehicle is composed of a propeller shaft 2-1 connected to the differential side by a front side joint 4 of a vehicle and a propeller shaft 2-2 connected to the transmission side by a rear side joint 6 of the vehicle. Both propeller shafts 2-1, 2-2 are connected by a double offset type joint 8 being a sliding constant velocity joint, a joint flange 10 forming a hollow space S and a connecting flange mechanism 12. In this joint 8, when shaft directional force acts on the propeller shaft 2, a relative slide movement of a constitutive part such as an inner ring 14 is allowed to the propeller shaft 2 by a movement allowing mechanism 22.
Patent JP-S5748560-A (JP)
Title: Tray
Inventor: TANAKA HIDETOSHI
IPC: B65H31/22
Filed: 1981-06-17
Abstract: PURPOSE: To promote the work efficiency by intermitting the transmission of the force of a displacement means to give displacement to a sheet-receiving part in case an excessive loading is given.  
     CONSTITUTION: When a tray of a printing machine, a dupricating machine, a recording device, or other picturizing devices is used for a dupricating machine 1, the picture of a copy 3 is projected on a transfer paper on a drum 6 for issuing onto a copy tray 13. A disk 17 is held between a holder plate 23 and a bevel gear 16 fast fixed on an output shaft of a motor 14 rotating in one direction, and the holding force is adjusted by a screw 24 and a spring 25. This disk 17 is engaged with a support plate 19 to which a tray 13 is connected via a lever 18, and provided with a detecting means 28 of gains faced opposite to each other for reciprocating the tray 13 on a straight line alternately between two positions. When a force to check the movement of the tray 13 is given, the disk 17 is slid against the frictional force between the bevel gear 16 and the holding plate 23, and the tray 13 is stopped. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H02271996-A (JP)
Title: Production of single crystal of neodymium cuprate
Inventor: OKA KUNIHIKO
IPC: H01L39/24
Filed: 1989-04-13
Abstract: PURPOSE:To grow a single crystal of the Nd2CuO4 superconductor having high quality by a floating zone method on a seed crystal by interposing a solvent consisting of Nd2O3 and CuO between a raw material rod consisting of Nd2CuO4 which contains a small ratio of specific different elements and the seed crystal of Nd2CuO4 in contact therewith and heating a solvent to form a floating melt. CONSTITUTION:Raw material powder formed by mixing the Nd2O3 and CuO in the form of powder at 1:1 and CeO or SrO as a part of the Nd2O3 is molded under pressurization to a round rod shape and the molding is calcined to form the raw material rod consisting of the Nd2CuO4. The round rod-shaped solvent 3 consisting of the powder mixture composed of 17.9 to 7.1mol% Nd2O3 and 82.1 to 92.9mol% CuO is in succession cut to a disk shape and is fused to the front end of th raw material rod 1. The solvent 3 is heated and melted by the IR rays from a halogen lamp 7 while this rod is kept roated by a revolving shaft 4 and thereafter, the rod is brought into contact with the seed crystal 2 and the solvent 3 is pulled upward under rotation, by which the single crystal of the Nd2CuO4 is grown on the seed crystal 2.
Patent JP-H11267353-A (JP)
Title: Mah-jongg tile washing device of automatic mah-jongg table
Inventor: KOBAYASHI HARUO
IPC: A63F9/20
Filed: 1998-03-23
Abstract: PROBLEM TO BE SOLVED: To automatically wash mah-jongg tiles during a game by use of the stirring and alignment of the tiles achieved by a tile stirring device and a tile alignment device which are located in the machine frame of an automatic mah- jongg table. SOLUTION: In an automatic mah-jongg table, a porous elastic wiping member W is mounted on a part of the interior wall surface of the hopper 5 of a tile stirring device 1 mounted in a machine frame, and the surface of the porous elastic wiping member W facing the center of the hopper 5 is formed into a rectilinear shape which forms a chord with respect to the interior wall surface of the cylindrical hopper 5 on plan view to wash mah-jongg tiles while the tiles are stirred together by the tile stirring device 1.
Patent JP-S60238465-A (JP)
Title: Manufacture of bright-annealed titanium and titanium alloy material with superior formability
Inventor: SHIICHI MASARU
IPC: C22F1/18
Filed: 1984-05-11
Abstract: PURPOSE:To manufacture simple and stably a bright-annealed Ti material with superior formability by pickling a Ti material with an aqueous soln. contg. nitric acid and hydrofluoric acid and by bright-annealing it in a specified atmosphere corresponding to vacuum. CONSTITUTION:A Ti or Ti alloy material is pickled with an aqueous soln. contg. nitric acid and hydrofluoric acid, and it is bright-annealed in an atmosphere under <=7X10<-5>Torr pressure corresponding to vacuum. The pickling is carried out by immersing the material in a mixed aqueous soln. contg. about 1-10vol% hydrofluoric acid and about 10-20vol% nitric acid for several - several ten sec while keeping the soln. at about 20-40 deg.C.
Patent JP-H09285039-A (JP)
Title: System for monitoring and controlling power system
Inventor: HIROSE MASAMICHI
IPC: H02J13/00
Filed: 1996-04-16
Abstract: PROBLEM TO BE SOLVED: To provide a multiple system for monitoring and controlling power systems wherein the possibility of any malfunction is prevented and the advantage of the multiple system can be sufficiently utilized even though any abnormality is present in its common memory data when the processing by a system being in a standby mode is started, in the backup processing by the multiple system. SOLUTION: In a multiple system for monitoring and controlling power systems, accumulating the data of a CPU1 being in a use mode in a common memory 4, the data of a CPU2 being in a standby mode is compared with the data read from the common memory 4, and when the CPU1 being in the use mode is damaged and the monitoring and controlling by the CPU1 are changed over to the ones by the CPU2 being in the standby mode, if any abnormality is present in the data of the common memory 4, this changeover is determined to be inhibited. Thereby, any malfunction in the case of the backup by the multiple system can be prevented to improve its reliability.
Patent JP-H03292192-A (JP)
Title: Photosensitive thermal recording material
Inventor: IWASAKI FUMIHARU
IPC: G03F7/004
Filed: 1990-04-10
Abstract: PURPOSE:To enable multicolor recording of images with high quality, by providing on one side of a support a porous microcapsule layer comprising a binder and porous microcapsules dispersed therein, the microcapsules containing a dye precursor, a polymericable monomer and a photopolymerization initiator as main constituents. CONSTITUTION:A photosensitive thermal recording medium comprises a support, e.g. a PET film, and a porous microcapsule layer provided on one side of the support. The microcapsule layer comprises a binder and a mixture of at least two kinds of porous microcapsules dispersed therein, the microcapsules containing a dye precursor, a photo-polymerization initiator and a polymerizable monomer as main constituents encapsulated by using an in situ polymerization method singly or in combination with a coacervation method. A recording material comprises a support, e.g. a paper, and a color developer layer on one side of the support. The color developer layer comprises a binder in which is dispersed a color developer capable of developing the dye precursor by reacting therewith. Multicolor images are recorded on the recording material through thermal transfer from the photosensitive thermal recording material.
Patent JP-H08264478-A (JP)
Title: Method of forming electrode of gallium nitride compound semiconductor
Inventor: KOIKE MASAYOSHI
IPC: H01L21/285
Filed: 1995-03-27
Abstract: PURPOSE: To reduce contact resistance between a metal electrode and semiconductor by sputtering the surface of the compound semiconductor containing at least gallium and nitrogen by using inactive gas and thereafter depositing the metal to form the electrode. CONSTITUTION: GaN is used as one example of a compound semiconductor containing at least gallium and nitrogen. A cleaned GaN substrate is placed on a target in a chamber of a sputtering apparatus. Then, argon ion is implanted with a Kaufman type ion gun in a normal direction under the conditions of about 200V acceleration voltage and about 20μA/cm<2> current density to sputter the target of the GaN substrate. Then, the GaN substrate is placed in the same chamber which is kept at a vacuum, and in the state nickel is deposited on the surface of the GaN substrate with ordinary sputtering. After the deposition, the deposited nickel is rendered to alloying. Thus, here is ensured a metal electrode which has several Ω low resistance as the contact resistance.
Patent JP-2000290289-A (JP)
Title: Production of 1-halogeno-2-deoxyribofuranose derivative
Inventor: TANIGAWA HIROHARU
IPC: C07H15/18
Filed: 1999-04-01
Abstract: PROBLEM TO BE SOLVED: To obtain a 1-halogeno-2-deoxyribofuranose derivative useful as a raw material for 2'-deoxynucleoside derivatives by reacting a specific 2- deoxyribofuranose with a hydrogen halide gas and further with an acyl halide. SOLUTION: This method for producing a 1-halogeno-2-deoxyribofuranose derivative of formula II (X is a halogen) [for example, 1-chloro-3,5-bis(4- chlorobenzoyl)-2-deoxyribofuranose] comprises blowing dry hydrochloric acid gas through the aprotic solution of a compound of formula I [R1 is a (substituted) 1-4C alkyl; R2, R3 are each a 1-4C alkyl or (substituted)benzyl] [for example, 3,5-bis(4-chlorobenzoyl)-2-deoxy-1-methylribofuranose] for 0.5 to 3 hr, further subjecting the mixture to the reaction for 0.5 to 2 hr, dropwisely adding acetyl chloride to the reaction solution for 0.5 to 3 hr, and further subjecting the solution to the reaction at a temp. of 0 to 30 deg.C for 0.5 to 2 hr. The hydrochloric acid and the acetyl chloride are preferably used in amounts of 1 to 10 moles and 0.8 to 0.99 mole per mole of the compound of formula I.
Patent JP-S63260453-A (JP)
Title: Ink jet recording head
Inventor: MORIYAMA JIRO
IPC: B41J2/14
Filed: 1987-04-17
Abstract: PURPOSE:To improve the frequency characteristic of an ink jet recording head and to accelerate the recording of the head by forming a structure in which a larger strain is generated at an electromechanical transducer toward the side of an orifice for connecting the converter to a liquid passage. CONSTITUTION:A front section is formed at T2, a rear section is, on the other hand, formed at T1, an outer surface is formed in a conical shape, and electrodes are formed by depositing on the inner peripheral and outer surfaces of a piezoelectric element 36 of an electromechanical transducer so that the thicknesses at the orifice side (front section) and a filter side (rear section) are different. The strain amount of the element 4T becomes constant with respect to an applied voltage V irrespective of the thickness T when it is used in an electric field of a predetermined value or lower. This is because the 4T is proportional to the thickness T in the same electric field and the electric field is inversely proportional to the thickness T. Accordingly, when the voltage applied to the element 36 is gradually raised, the rear section of the element is saturated in its strain amount. Thus, as the strain amount increases toward the end of a liquid passage, i.e., the orifice side as the voltage rises, and the pressure in the pressure chamber increases more toward the orifice side.
Patent JP-H07299195-A (JP)
Title: Ball shooting rail part structure of pachinko machine
Inventor: TAKEMOTO TAKATOSHI
IPC: A63F7/02
Filed: 1994-05-09
Abstract: PURPOSE:To deliver pachinko balls straight without fluctuation by forming a recessed face part, between internal end parts of both top surface side parts, with such a depth that the undersurface of a pachinko ball does not contact with the recessed face part by keeping it in contact with the internal angles parts of both the top surface side parts. CONSTITUTION:A shooting rail part A is formed by pressing a metal sheet. The top surface of the part is made wider than the diameter of a pachinko ball 3 and two inverted U shaped top surface side parts 4a and 4b with mutually same lateral width are formed downward parallel on both sides of the top surface so that the length therebetween is slightly less than the diameter of the pachinko ball 3. Both side plate parts 5a and 5b are extended downward parallel separately from the external end sides of both the top surface side parts 4a and 4b. A recessed face part 6 horizontal in width direction is formed, between internal end parts of both the top surface side parts 4a and 4b, with such a depth that the undersurface of the pachinko ball 3 does not contact with the recessed part by keeping it in contact with internal angle parts A and B of both the top surface side parts 4a and 4b. A support plate is formed at a slant lower side end part on the top surface of the shooting rail part A to let the pachinko balls 3 be awaited with an opening letting a hammer in.
Patent JP-H06270914-A (JP)
Title: Tape feeder
Inventor: KATAOKA AKIRA
IPC: B65B13/18
Filed: 1993-03-15
Abstract: PURPOSE:To correctly and securely feed a tape to an outer periphery of an object by providing a pressure welding roller which can suck and hold a tip of the tape on the outer periphery and a pressing means for the pressure welding roller and the object. CONSTITUTION:A tape roll 4 is mounted on a reel 5 of a tape feeder 1, and a tip of an adhesive tape 2 is fed from the tape roll 4 via guide rollers 8, 9 onto a pressure welding roller 9. Attraction is caused by making inside of the pressure welding roller 9 into a negative pressure, and a non-adhesive side at the tip of the fed adhesive tape 2 is sucked and held on an outer periphery of the pressure welding roller 9. Then after a tip of a wrapping sheet 3 is adhered to an outer periphery of a roll R to be wrapped, the roll R begins rotating to be rolled in the wrapping sheet 3. Then an actuator 15 activates to tilt a movable support 12 to push the pressure welding roller 9 against the roll R. Therefore the tape 2 can be securely adhered.
Patent JP-H09253343-A (JP)
Title: Connection device
Inventor: HAYAKAWA TETSUJI
IPC: A63H19/18
Filed: 1996-03-25
Abstract: PROBLEM TO BE SOLVED: To provide the connection device of a new structure unlike conventional one capable of freely turnably or fixedly connecting a toy body. SOLUTION: In this connection device 10, when it is pushed into the inner side of the housing part 35 of the toy body 1, the engaging part 13 of a sliding body 11 is locked to a first locking part 33 and a connection member 19 is held between both side walls 32 of the housing part 35 and is made unturnable. When it is pulled out from the inner side of the housing part 35 of the toy body 1, the engaging part 13 of the sliding body 11 is locked to a second locking part 34 and the connection member 19 is pulled out from both side walls 32 of the housing part 35 and is made turnable.
Patent JP-2000280765-A (JP)
Title: Vehicular fuel lid
Inventor: SAITO TSUTOMU
IPC: B60K15/05
Filed: 1999-04-01
Abstract: PROBLEM TO BE SOLVED: To confirm fastening of a fuel cap from the outside of a compartment in a state where a fuel lid is closed. SOLUTION: A fuel lid 10 is constituted of transparent resin such as transparent acryl, transparent polycarbonate. Therefore, even in a state where the fuel lid 10 is closed, a fuel cap 26 and a recessed part 15 can be seen through the fuel lid 10. As a result, an operator who replenished fuel from the outside of the compartment can confirm fastening of the fuel cap 26 without opening the fuel lid 10 in that place.
Patent JP-S57210322-A (JP)
Title: Liquid crystal optical device
Inventor: NAKAMURA HARUO
IPC: B41J2/445
Filed: 1981-06-19
Abstract: PURPOSE:To obtain a liquid crystal optical device having high speed responsiveness, by  using a liquid crystal composition in which an optically active substance is added to  nematic liquid crystal generating dielectric relaxation in a long axial direction of liquid crystal molecule and driving by using the specific high and low two kinds of frequencies of voltage. CONSTITUTION:An optically active nematic liquid crystal composition having <=100kHz  cross frequency fc at normal temp. whose dielectric anisotropy becomes zero is sealed  in between substrates 1, 1 on which transparent electrodes 2 are provided respectively.  Liquid crystal molecule is disposed to be parallel on the surfaces of substrates and is  subjected to an orientation treatment so that the upper substrate surface crosses at a  right angle to the lower substrate surface. Polarizing plates 6.7 are disposed so that the polarizing directions cross at right angles respectively. The thickness of a liquid  crystal layer (d) is regulated within three times as much as a spiral pitch of the liquid  crystal composition. A driving circuit converting voltage fh having a frequency larger  than the frequency fc and voltage fe having a frequency smaller than fc and applying,  is provided. By this way, a liquid crystal optical device suitable for light valve etc.  which are able to make and break at the high speed more than several ten times as  high as the usual products.
Patent JP-S5321319-A (JP)
Title: Variable timing valve lifter
Inventor: MATSUURA YOSHIHIRO
IPC: F01L1/24
Filed: 1976-08-10
Abstract: PURPOSE: To always perform proper control for an engine valve by the use of a hydraulic valve lifter having a lifter body provided with a communication port to an oil discharge channel communicating with a valve chamber enhousing a valve element responsive to the lubrication oil pressure in an engine. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S61254062-A (JP)
Title: Stepping motor
Inventor: MIYASHITA NOBORU
IPC: H02K37/16
Filed: 1985-05-02
Abstract: PURPOSE:To increase the efficiency of a motor by forming a groove for determining the steady position of a rotor on a stator, thereby readily forming by pressing the stator. CONSTITUTION:A stepping motor is composed of a stator 11 of a magnetic material, a coil 12 mounted on a core 13 mounted at the stator and a rotor 14 having two poles. The rotor 14 is disposed in the circular hole 15 of the stator 11, and a pair of small-width parts 16 are formed at the periphery. In this case, a pair of grooves 17 of square section disposed on a line passing the center of the hole 15 along the direction inclined at the prescribed angle with respect to the direction of an exciting magnetic flux of the coil 12 are formed on one side of the stator 11. The rotor 14 is stopped in the direction inclinded with respect to the direction of the magnetic flux by the grooves 17. The rotor 14 rotates stably by an angle of 180 deg. of step in one direction.