baber/WOPTO huggingface dataset:
Patent JP-H07190259-A (JP)
Title: Improved mechanical pipe joint
Inventor: TOOMASU DEII HANTAA
IPC: F16L21/08
Filed: 1994-10-12
Abstract: PURPOSE: To provide a mechanical pipe joint for connecting a bell body with a plain pipe end having no leakage and looseness on the joint and no fear of the deformation of the plain pipe and the breakage of the joint at its assembly time. CONSTITUTION: The joint has a gland 122 having a conical cavity 128 for receiving a toothed split ring 136 and when the gland is tightened to the bell body 102, the split ring coaxially compresses and grips the plain pipe end 104. The joint is sealed by a compressible gasket 118 positioned between the split ring and bell body. Further, the gland has an integrally formed, radially extending shelf 142 for abutting against the split ring and machanically stopping the gland from being pulled over the split ring during a joint assembly.
Patent JP-S6489813-A (JP)
Title: Multi-stage switch circuit
Inventor: MORIGUCHI YUKIO
IPC: H03K17/78
Filed: 1987-09-30
Abstract: PURPOSE:To make the size of entire device small at the same time by using an optical transmission element and plural optical reception elements for drive pulse transmission so as to match the timing of on/off operation of each switch element easily. CONSTITUTION:An optical transmission line 3 is interposed separately between the optical transmission and reception elements equipped respectively with the gate circuit G of each switching element 1 and a light collection line 3 comprising a transparent member is fixed to the light collection plate 3A in each optical transmission end of the optical transmission line 3. When a drive trigger is outputted from a drive pulse output circuit 14, the optical transmission element 1 generates an optical signal and it is sent to the optical reception element of the secondary drive section located at a high voltage section via the optical transmission line 3. The optical reception element 2 recovers the drive trigger to drive the switching element 1. Thus, the timing difference of the drive pulse is eliminated surely by making the condition of the optical transmission line constant and the multistage switch circuit with small size, light weight and high dielectric voltage is obtained.
Patent JP-H06100367-A (JP)
Title: Anisotropic carbon-carbon composite material and its production
Inventor: SHINOHARA HIROHARU
IPC: C04B35/83
Filed: 1992-09-16
Abstract: PURPOSE:To improve the strength characteristics of a graphite material exhibiting anisotropic properties in thermal conductivity and in electric conductivity. CONSTITUTION:The anisotropic carbon-carbon composite material is formed by laminating plural tape-like graphite films having electrically and thermally different anisotropic properties, respectively. Specifically, it is produced by coating the tape-like graphite films having the electrically and thermally different anisotropic properties, respectively, with an organic binder, laminating the formed prepregs to each other, compressing and subsequently thermally carbonizing or graphitizing the binder in an inert atmosphere.
Patent JP-H0562190-A (JP)
Title: Dropout detection circuit
Inventor: TAKASE YUTAKA
IPC: G11B20/02
Filed: 1991-08-30
Abstract: PURPOSE:To detect a dropout even of a high frequency which is caused by the abnormality of a pit by a method wherein the frequency band of a signal used to frequency-detect the dropout is lowered. CONSTITUTION:A reproduced RF signal (a) is changed to a picture signal (b) by means of a demodulation circuit 1; it is supplied to a changeover circuit 3 and a 1H delay circuit 2. In a dropout detection part, the signal (a) is multiplied by a signal (e) at the central frequency fc of carrier waves. It is output as the signal of the sum of the frequency of the signal (a) and the frequency fc and of the difference between them. The sum component of the frequency is removed by an LPF 5. The signal is sent to a frequency detection circuit 6 as a signal (g). The circuit 6 detects the zero level of the signal (g), pulses at a cycle corresponding to the cycle of the signal (g) is changed to a waveform, and a dropout is detected by a change in the cycle. The dropout which has been detected is output as a detection signal when the difference between the signal (a) and the frequency fc exceeds a prescribed value. The generation of an abnormally high frequency caused by the defect of a pit on the surface of a laser disk is detected, and an output (c) is sent out by the circuit 3.
Patent JP-S61123163-A (JP)
Title: Manufacture of double heat-sink diode
Inventor: NAKAYAMA OSAMU
IPC: H01L23/48
Filed: 1984-11-19
Abstract: PURPOSE:To bring a diode pellet and upper and lower electrodes into contact excellently by pressing, temperature-elevating and sealing the diode pellet held by the upper and lower electrodes and removing a weight on the upper electrode in a cooling process. CONSTITUTION:A diode pellet 3 consisting of a semiconductor substrate 1 and a metallic bump electrode 2 is held by a lower electrode 4 and an upper elec trode 5, and incorporated into jigs 7, 8 filling the role of heaters, load by a weight 9 is applied onto the upper electrode 5, and the temperatures of the jigs 7, 8 are elevated to heat the pellet 3. When steps transfer to a cooling step, the weight 9 is removed, both the lower and upper electrodes 4, 5 are cooled rapidly, and the diode pellet 3 is cooled at speed faster than a glass sleeve 6 for sealing, thus obtaining a DHD in which the diode pellet 3 and both upper and lower electrodes 5, 4 are brought into contact excellently.
Patent JP-H0968007-A (JP)
Title: Camshaft driving device for v-type engine
Inventor: KAMIYA MASAHISA
IPC: F02B75/22
Filed: 1995-08-31
Abstract: PROBLEM TO BE SOLVED: To improve the strength of one-side and other-side cam chains shorter than a timing chain by making the tensile strength of the timing chain and the tensile strength of the one-side and other-side cam chains respectively differ ent in a specific range. SOLUTION: A timing chain 50 is provided being wound on a crank sprocket 24, a one-side intermediate sprocket 42 and an idler sprocket 48. The pitch P of the timing chain 50, the pitch P2 of a one-side cam chain 52L and the pitch P3 of an other-side cam chain 52R are respectively made different so that the tensile strength S1 of the timing chain 50, the tensile strength S2 of the one-side cam chain 52L and the tensile strength S3 of the other-side cam chain 52R are in the relation of S1<S2<S3. The strength of the one-side and other-side cam chains 52L, 52R shorter than the timing chain can thereby be heightened.
Patent JP-S6399884-A (JP)
Inventor: NOMURA JUN
IPC: B24B49/00
Filed: 1986-10-17
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-H06101824-A (JP)
Title: Melting method for waste refuse
Inventor: TANAKA EIJI
IPC: F23G5/00
Filed: 1992-09-17
Abstract: PURPOSE:To provide a method for melting waste refuse having a better melting efficiency by a method wherein combustion air is supplied to a main combustion chamber in a pulsation manner and a balance of air volume for pulsation combustion supplied to each of main combustion chamber divided into each of zones is changed. CONSTITUTION:There are provided air supplying holes 29a, 29b and 29c so as to define an inner cylinder 21 of a main combustion chamber 23 into a central annular zone A, an annular zone B around the zone A and an annular zone C around the zone B. Each of entire volume of supplied air at each of pulse is made constant. Dampers 30a, 30b and 30c are controlled through solenoids 38a, 38b and 38c in response to data of air volume transmitted from a flow meter 36 and flow meters 32a, 32b and 32c. Air volume supplied from the air supplying device 31 to the air supplying holes 29a, 29b and 29c is varied. With such an arrangement as mentioned above, the air is blown into the zone C as indicated by an arrow in its circumferential direction, a turbulent flow is generated within the main combustion chamber 3 and a intensity of the turbulent flow is increased.
Patent JP-H06104941-A (JP)
Title: Fsk receiver
Inventor: MINAMI YOICHIRO
IPC: H04B1/26
Filed: 1992-09-17
Abstract: PURPOSE:To suppress power consumption of a battery especially by operating intermittently a PLL local oscillation circuit of the FSK receiver in response to a phase locking state. CONSTITUTION:A modulation wave is mixed with a 1st local oscillating frequency generated by a VCO 112, a loop filter 119 and a PLL circuit 113 at a 1st mixer 104 and mixed with a 2nd local oscillating frequency generated by a local oscillation circuit 120 at a 2nd mixer 106 and the mixed signal is demodulated by a detection circuit 109 and a base band signal is extracted by a low frequency filter 110 and a comparator circuit 111. Its output is detected as a DC voltage at an integration circuit 114 and fed to a comparator circuit 115 via a sample-and-hold circuit 116 and compared with a succeeding detected DC voltage. Only when the value exceeds a prescribed value and the frequency fluctuation is deviated from the synchronization lock state, the operation of the PLL circuit is activated by a PLL intermittent operation circuit 117, and the operation is inactivated in other cases except initial synchronization locking to use a free run output of the VCO.
Patent JP-H07102477-A (JP)
Title: Light-resistant polyester fiber
Inventor: BAN KAORU
IPC: D06M101/16
Filed: 1993-10-01
Abstract: PURPOSE:To provide polyester fibers suitable for seat belts of excellent light resistance. CONSTITUTION:The light-resistant polyester fibers contain >=90mol% of ethylene terephthalate recurring unit, and the fiber surface is imparted with a spinning lubricant which is prepared by formulating a spinning lubricant with 1-7wt.% of both antioxidant and ultraviolet light absorber.
Patent JP-S61126955-A (JP)
Title: Roll for continuous casting
Inventor: HORI MASAO
IPC: B23K26/00
Filed: 1984-11-21
Abstract: PURPOSE:To eliminate the possibility of cracking and to improve the durability of a roll by welding a roll shaft body and sleeve to form alternately soft layers and hard layers extending axially to the sleeve. CONSTITUTION:The sleeve 13 is shrinkage-fitted to the roll shaft body 12 and the body 12 and the sleeve 13 are welded by an electron beam welding device. The molten part of the sleeve 13 is quickly cooled by the non-irradiated part in the welded part 18 and the part 16 forms the soft layer having fine austenite structure. The irradiation head is axially moved adjacently to the layer 16 and the electron bean is irradiated, then part of the austenite structure 16 adjacent thereto is tempered and forms the hard layer of the tempered bainite structure 19. The irradiation head is moved axially at close intervals adjacently to the austenite structure 16 extending in the axial direction, by which the soft layers 16 and hard layers 10 extending in the axial direction are alternately formed to the sleeve 13 in the radial direction thereof. The sleeve 13 and the body 12 are welded by the welded part 20 over approximately the entire surface thereof.
Patent JP-H10224909-A (JP)
Title: Axle bearing assembly of freight car
Inventor: CACCIATORE ROLANDO
IPC: B61D43/00
Filed: 1997-09-11
Abstract: PROBLEM TO BE SOLVED: To enable to mount an ABS(anti-blocking system) on a freight car by a generator mounted on the freight car and, further, operate electric appa ratuses mounted on the respective freight cars independently. SOLUTION: A sealing device 20 which is provided on the outer end part in the axial direction of the axle bearing assembly of a freight car has at least one rigid and non-rotating shield 21. A generator which is unified with the sealing device 20 has a magnetized impulse generating ring 25 which is attached rotatably to one of the rotary parts 12 of the bearing assembly and a coil 24 which faces the magnetized impulse generating ring 25 and is fixed to the non-rotating shield 21. A current induced in the coil 24 is supplied to a current drain bond in the same freight car.
Patent JP-H04129672-A (JP)
Title: Character/figure preparation equipment
Inventor: KURODA MASAYUKI
IPC: B24C5/02
Filed: 1990-09-19
Abstract: PURPOSE:To prepare a character/ figure, etc., freely, as one pleases, by controlling the solid gas 2 phase mixture flow of a multihead injection nozzle. CONSTITUTION:A multihead injection nozzle 1 is made by integrating plural nozzles. In case of injecting the injection flow from this nozzle 1 to the face to be worked of the body 19 to be worked, the injection flow quantity of an individual nozzle is controlled by the information signal of character/ figure transmitted from a controllor 22 equipped with a figure signal generator. A desired carving can thus be executed on the surface of the body to be worked quickly comparatively without the need for skillfulness, and such products can be manufactured uniformly.
Patent JP-H03108550-A (JP)
Title: Method for driving ink jet head
Inventor: TAKADA NOBORU
IPC: B41J2/045
Filed: 1989-09-22
Abstract: PURPOSE:To drive an ink jet head so that it can jet ink particles stably by a method wherein a time from the first contraction of an ink chamber to the second expansion thereof is invariably kept constant regardless of a change in other drive conditions. CONSTITUTION:An electromechanical converting means 4 made of, for example, an piezoelectric element converts an electric signal to a mechanical motion. A drive voltage generating circuit 5 generates a voltage pulse to be applied to the electromechanical converting means 4. Namely, the drive voltage generating circuit 5 applies two voltage pulses for every one dot recording to make an ink chamber 1 conduct an expansion contraction action twice. The generated voltage pulse can invariably keep constant for a time from the first contraction of the ink chamber 1 to the second expansion thereof, i.e., from the rising of a first pulse (a voltage builtup direction) to the falling of the second pulse (a voltage drop direction). In this manner, a double dot caused by a temperature change is inhibited, and a printing dot diameter can be varied.
Patent JP-H02100874-A (JP)
Title: Resin bond grindstone
Inventor: EGAWA TSUNEO
IPC: C08L61/00
Filed: 1988-10-03
Abstract: PURPOSE:To constrain the fall of the abrasive grain of CBN grains or diamond grain and to reduce the wear of a grindstone by coating a metal coating layer by the resin of higher wear resistance compared to a resin bond. CONSTITUTION:CBN grain or diamond grain 10 having a metal coating layer 11 on the external surface is taken as the resin bond grindstone dispersing it in a resin bond 12. In that case, a metal coating layer 11 is covered by the resin 20 of higher wear resistance compared to the resin bond 12. As a result, the fall of the abrasive grain of CBN grain or diamond grain 10 can be restrained.
Patent JP-2000074190-A (JP)
Title: Substructure of automatic transmission
Inventor: MIYAGI TAKESHI
IPC: F16H57/023
Filed: 1998-09-01
Abstract: PROBLEM TO BE SOLVED: To provide a substructure of automatic transmission, which can decrease the risk of a solenoid contacting even if a collision of the vehicle undersurface has caused deformation of an oil pan. SOLUTION: A control valve assembly 12 is installed on the undersurface 11a of the body 11 of an automatic transmission, and an oil pan 6 covering the undersurface 13a of the lower body is installed at a certain spacing in between, and a primary duty solenoid 15 is partially provided protrusively on the undersurface 13a of the lower body 13. In this substructure of automatic transmission, ribs 18 protruding toward the oil pan 6 as positioned adjacent to the primary duty solenoid 15 are consolidatedly formed on the lower body undersurface 13a.
Patent JP-S62107875-A (JP)
Title: Thrust receiving device
Inventor: ICHIKAWA HIROO
IPC: B25J19/00
Filed: 1985-11-05
Abstract: PURPOSE:To miniaturize the device so as to apply no thrust on the movable part of a moving device by providing the prescribed thrust receiving member on the moving member which is fitted to the moving device. CONSTITUTION:The welding gun 10 as for a moving member is fitted on the X - Y table 12 as for the moving device and provided movably in the X and Y axial directions shown by arrow marks A, B by the rotation of motors 38, 54. A stiffening plate 64 is then fitted to the welding gun 10 and held at slightly lower position than a side plate 22 all the time. In this composition, an output rod 68 is pushed out with the operation of an air cylinder in welding and a thrust is caused on the upper part with the reaction force that an electrode 70 presses a stud 74. In this case, no thrust is applied on the movable member, the mechanical strength is reduced as well and the component and device can be miniaturized, because of the stiffening plate 64 receiving the thrust by abutting to the side plate 22.
Patent JP-H08112792-A (JP)
Title: Force control robot
Inventor: JINNO MAKOTO
IPC: B25J9/10
Filed: 1994-10-13
Abstract: PURPOSE: To provide a force control robot capable of smoothly guiding an end effecter even in a condition of contact while preventing damaging the end effecter to collide against a work object or the like, in the case of guiding the end effecter mounted on a hand point part of a robot. CONSTITUTION: In a force control robot, a force sensor 4 of detecting reaction force applied to an end effecter 5 of the robot is provided, and based on a moving command value indicated to a position attitude control means 8 through a joy stick 6, the end effecter 5 can be guided to a target position corresponding to this moving command value. A correcting means 11, correcting the moving command value as a function of reaction force detected by the force sensor 4, is provided, and a force control means 12, acting to the position attitude control means 8 based on reaction force detected by the force sensor 4 so as to correct the terget position corresponding to the moving command value by a prescribed correction amount in a direction of reaction force detected by the force sensor 4, is provided.
Patent JP-H0990331-A (JP)
Title: Liquid crystal display device
Inventor: NAKAZONO TAKUSHI
IPC: G02F1/1333
Filed: 1995-09-26
Abstract: PROBLEM TO BE SOLVED: To obtain a liquid crystal display device which has polycrystaline silicon thin-film transistor(TFT) elements having good mobility and threshold characteristics and high reliability and is capable of embodying excellent display performance by incorporating specific ppm or above of OH groups into the molecular structure of a material forming an electrically insulating substrate. SOLUTION: The quartz substrate 1 formed to contain >=20ppm OH groups is used as a base material for the TFT array substrate of the liquid crystal display device. An active layer 2 consisting of a p-Si film having 100nm film thickness is disposed on the quartz substrate 1. The hydrogenation treatment of the p-Si of the active layer 2 is executed by exposing the TFT array substrate to hydrogen plasma to diffuse the hydrogen into the active layer 2. The dangling bonds of the p-Si of the active layer 2 are then effectively terminated by the structure of the quartz substrate 1, by which the electrical characteristics and reliability of the active layer 2 used as the TFT of the liquid crystal display device are effectively improved.
Patent JP-S63103647-A (JP)
Title: Semiconductor motor of one phase
Inventor: BAN ITSUKI
IPC: H02K29/00
Filed: 1986-10-21
Abstract: PURPOSE: To prevent generation of excessive Joule heat at late period of conduction of an armature coil and to facilitate starting, by a method wherein the conduction is stopped only at prescribed interval of the late period of conduction and the stop action is suppressed only at the starting state. CONSTITUTION:When an armature coil 5a is energized and excited into N-pole and a magnetic pole 6a is rotated in arrow Y direction, magnetic flux by the magnetic pole 6a is in direction of arrow 32. Direction of magnetic flux by the armature coil 5a becomes reverse to that of the arrow 32, and since magnetic flux in the direction of arrow 32 is rapidly decreased at conduction of the coil 5a, large counter-electromotive force is generated thereby excessive armature current is suppressed. Accordingly, the magnetic field in this portion is zero or small and the output torque is also small, but the Joule loss also becomes small and the efficiency is not significantly attected.
Patent JP-H0588162-A (JP)
Title: Liquid crystal panel and liquid crystal display device using the same
Inventor: TAKAHARA HIROSHI
IPC: G02F1/1333
Filed: 1991-09-27
Abstract: PURPOSE:To provide the liquid crystal display device which does not require any polarizing plate to modulate light, makes a display image high in brightness, and has an excellent contrast. CONSTITUTION:A Fresnel lens 18 is formed on a counter electrode 15. The refractive indexnk of the constituent material of the Fresnel lens is made nearly equal to the ordinary light refractive index no of dispersed liquid crystal 17. When a voltage is applied between the counter electrode 15 and a picture element electrode 14, the refractive index noff of the liquid crystal 17 is (Zno+ne)/3, where Ne is the extraordinary light refractive index of the liquid crystal 17. Therefore, nknot equal to noff, so light made incident on the liquid crystal panel is refracted by the interface between the Fresnel lens 18 and liquid crystal 17 and also scattered in the liquid crystal 17. When the voltage is applied, on the other hand, the refractive index man of the liquid crystal 17 is no. Here, nk=n0, so the Fresnel lens 18 appears to be removed. The incident light travels straight in the liquid crystal 17.
Patent JP-H0296994-A (JP)
Title: Magnetic picture recording and reproducing device
Inventor: SHIMAZAKI HIROAKI
IPC: G11B27/28
Filed: 1988-10-03
Abstract: PURPOSE:To prevent occurrence of a possibility of the absolute address of the same value being recorded on the same magnetic recording medium in the number of two or more by recording absolute addresses from the value following the absolute address immediately before the read picture recording starting point when picture recording operations are started. CONSTITUTION:A picture recording starting point indicating signal generated by a picture recording starting point generator 1 is recorded on a magnetic recording medium 8 through a magnetic head 7. After recording the signal, the head 7 is brought to the position before the picture recording starting point on the medium 8 and caused to start reproducing or variable-speed reproducing operations from the position. When the reproducing operations are started, a previously recorded absolute address is reproduced and supplied to an absolute address reader 3 and picture recording starting point detector 4. When the head 7 reaches the picture recording starting point, the detector 4 detects the picture recording starting point indicating signal and stops the operations of this device. Simultaneously, the absolute address immediately before the picture recoding starting point read by the reader 3 is transmitted to an absolute address generator 2. Upon starting the picture recording operations, the generator 2 generates addresses from the value following the previously recorded absolute address and the addresses are recorded on the medium 8.