baber/WOPTO huggingface dataset:
Patent JP-H109151-A (JP)
Title: Piston equipped with check valve
Inventor: TANABE TOMOAKI
IPC: F16K15/04
Filed: 1996-06-26
Abstract: PROBLEM TO BE SOLVED: To prevent a drop in pressure of opening a check valve incorporated in a piston and improve the sealing properties thereof by setting the rake angle of a valve seat in two stages divided by the contact line of the valve seat with a valve element such that the valve-inlet side rake angle is made larger than the valve-outlet side rake angle. SOLUTION: The rake angle of a valve seat 5 on which a ball-shaped resin valve element 4 is adapted to be seated is set in two stages divided by a contact line 6 of the valve seat 5 with the valve element 4. The rake angle θ1 on the valve-inlet side is set to 40 to 50 degrees while the rake angle θ2 on the valve- outlet side is set smaller. The contact portion of the valve seat 5 with the valve element 4 thus has an annularly-projecting step to substantially reduce the contact area thereof with the valve element 4, which leads to a larger surface pressure thereon. That arrangement prevents a drop in pressure of opening the valve being closed or at least decreases the reduction rate, to thereby improve the sealing properties of the piston.
Patent JP-S6162208-A (JP)
Title: Array antenna with reflecting plate
Inventor: SEKI HAJIME
IPC: H01Q13/02
Filed: 1984-09-03
Abstract: PURPOSE:To improve both the cross polarized wave characteristic and the beam shaping by combining beams in a vertical plane by means of an array antenna and combining beams in a horizontal plane by means of a main reflecting board comprising plural conductor plane boards. CONSTITUTION:The array antenna 40 as a radiator consists of a waveguide slot antenna and the main reflecting board consists of a reflecting board comprising partial reflection boards 50, 51, 52, 53 being conductor plane boards. The reflecting axis of each partial reflecting boards is arranged in parallel with the X axis and the entire reflecting board is symmetrical to the XZ plane. The slot of the antenna 40 is excited by a current of the waveguide, the amplitude is adjusted mainly by the dimension S and the relative exciting phase among the slots is adjusted mainly by the dimension L. Thus, no cross polarized wave component is included basically in the wave source by using an element with excellent cross polarized identification as each radiation element and the beam shaping is improved. Thus, excellent cross polarized wave characteristic is obtained without cancelling the cross polarized component included in the wave source.
Patent JP-S5989655-A (JP)
Title: Heterocyclic compound, manufacture and medicinal composition
Inventor: IISHIYUTOBAAN ZEERENII
IPC: C07D333/20
Filed: 1983-09-30
Abstract: The invention relates to special heterocyclic compounds corresponding to general tautomeric formula I which are distinguished by improved antagonistic activity on histamine-H2-receptors. The invention also relates to a process for producing these compounds and to medicaments containing them.
Patent JP-H0234659-A (JP)
Title: Production of far-infrared-radiating polyester composition
Inventor: MATSUNAGA NOBUHIRO
IPC: C08L67/00
Filed: 1988-07-23
Abstract: PURPOSE:To obtain the title composition which can effectively radiate far- infrared rays and has an improved warming effect by adding ethylene glycol containing a fine far-infrared-radiating ceramic finely dispersed therein to the system at an arbitrary time before the initial stage of the polycondensation reaction for forming a polyester. CONSTITUTION:A slurry is obtained by dispersing 2-50wt.% far-infrared-radiating ceramic powder of a spectral emissivity in the far-infrared region of a wavelength of 5-20mum >=60% (e.g.,B4C) in ethylene glycol or a liquid based on it so that the mean diameter of the dispersed particle is 1mum or below. 0.1-10wt.% said slurry is added to the reaction system at an arbitrary time before the initial stage of the polycondensation reaction for forming polyethylene terephthalate or a polyster based on it, and the polycondensation reaction is completed.
Patent JP-H1110188-A (JP)
Title: Screw type aerator
Inventor: TANABE SEIICHI
IPC: B01F3/04
Filed: 1997-06-24
Abstract: PROBLEM TO BE SOLVED: To smoothly perform an aeration process even if an aeration tank has a great depth, when air is discharged from an opening formed at an end of a hollow shaft, by forming the hollow shaft to a specific length and providing a shut-off valve in an air pipe interconnecting a blower and the hollow shaft. SOLUTION: In the screw type aerator, a screw 4 is provided on the outer periphery of an end of a hollow shaft 3 and air can be discharged into the water from an opening formed at the end of the shaft 3. In this case, the length of the shaft 3 is made 3 m or more and a motor 1 to rotationally drive the shaft 3 through a transmission mechanism 7 and a blower 2 to introduce air into the shaft 3 are set on the surface of the water and a shut-off valve 9 is provided in an air pipe 8 interconnecting the blower 2 and the shaft 3. Thus even in an aeration tank 10 having a depth of 3 m or more, flow speeds of foul water at the bottom of the tank 10 and the extent of flow of the foul water caused by a screw 4 can be maintained, while the foul water can be smoothly aerated.
Patent JP-S6340266-A (JP)
Title: Seal forming paste of electrode for fuel cell
Inventor: SHIODA HISASHI
IPC: H01M8/02
Filed: 1986-08-05
Abstract: PURPOSE:To increase the filling amount in one filling operation and to increase the total filling amount by using a mixture of a solid material and a colloid forming material which forms colloid with the solid material. CONSTITUTION:As a solid material, at least one selected from silicon carbide, sicon nitride, carbon, and graphite is used. Particle size of these materials is 20mum or less. As a colloid forming material, sodium carboxymethylcellulose and/or ammonium carboxymethycellulose are/is used. A mixing ratio of the solid material to the colloid forming material is 1:0.5-1:2, and 0.5-2wt% solution of the mixture is used.
Patent JP-2001012254-A (JP)
Title: Driving gear in snow mobile
Inventor: ATSUMI MAMORU
IPC: B62M27/02
Filed: 1999-06-29
Abstract: PROBLEM TO BE SOLVED: To form an internal combustion engine in smaller size and lighten its weight, so that easier operability and handling can be obtained in a snow mobile, in the case that sufficient drive force is output from a crankshaft of the internal combustion engine relative to a running drive means. SOLUTION: An internal combustion engine 18 is provided with a crankshaft 49 supporting the halfway part in an axial direction to a crankcase 43 by bearings 45 to 48 and a wrapping transmission means 90 association connecting a valve system 81 internally provided in a protruded end part of a cylinder 50 to the crankshaft 49. This wrapping transmission means 90 is provided with a drive rotary ring 91 mounted in the crankshaft 49, driven rotary ring 92 mounted in the valve system 81 to be internally provided in the protruded end part of the cylinder 50, and a wrapping transmission belt 93 wrapping connected to the drive/driven rotary ring 91, 92. A running drive means is connected to be associated with one end part 49a of the crankshaft 49, while the drive rotary ring 91 is mounted in the other end part 49b of the crankshaft 49.
Patent JP-H1027443-A (JP)
Title: Magnetic disk device
Inventor: FURUYAMA TAKASHI
IPC: G11B21/10
Filed: 1996-07-15
Abstract: PROBLEM TO BE SOLVED: To obtain the magnetic disk device having high recording density using an inexpensive magnetic head by providing at least two magnetic disk medium surfaces with different servo tracks in pitch. SOLUTION: This magnetic disk device is equipped with a plurality of disk surfaces as information recording media and magnetic heads arranged opposite to these surfaces. At the writing of servo signals such as A-burst and B-burst, etc., by this magnetic disk device, while arms holding the magnetic heads are contact-driven from the outside and positioned, writing is performed in positions shown by arrows A, B, C and D respectively. Then, when positioning the magnetic heads in positions shown by arrows E to I, the positioning can be performed with an off-track by 1/4 track from a (n)-th track (n+1)th track by utilizing the servo signals.
Patent JP-S5974546-A (JP)
Title: Silver halide photographic emulsion
Inventor: KOSHIZUKA KUNIHIRO
IPC: G03C1/34
Filed: 1982-10-22
Abstract: PURPOSE:To obtain a photographic emulsion superior in stability of photographic characteristics against fluctuation of Br<-> concn. in a developing soln. by incorporating a specified silver halide, a hydroxytetraazaindene compd., and an N-contg. heterocyclic compd. having a mercapto group. CONSTITUTION:The silver halide photographic emulsion contains a combination of (A) silver halide composed of silver chlorobromide or silver chlorobromoiodide, and having <=0.15 fluctuation coefft., (B) a hydroxytetraazaindene compd., and (C) an N-contg. heterocyclic compd. having a mercapto group. The effect of said combination of (A), (B), and (C) is due to the fact that development performance depends upon the mutual action between the compds (B) and (C) and development nuclei. The compd. of (B) to be used is exemplified by compds. represented by formulae I , II, and III in which R1-R8 are each H or one of aliphatic residues.
Patent JP-H0677861-A (JP)
Title: Information collection system through power
Inventor: KAYAMA TORU
IPC: H04Q9/00
Filed: 1992-06-19
Abstract: PURPOSE:To provide the information collection system through power line carrier in which information collected through power line carrier is accessed from any remote locations. CONSTITUTION:A power line carrier network 11 having a power line 14 being a data transmission line, each information detection section 12 connecting to the power line 14 via a detection side power line carrier MODEM 13, and a data collection unit 16 connecting to the power line 14 via a collection side power line carrier MODEM 15 and collecting data sent from each information detection section 12 is connected to a public communication network via a MODEM 17.
Patent JP-H0471767-A (JP)
Title: Vacuum casting machine with molten metal leakage detection instrument
Inventor: NISHIYAMA YUJI
IPC: B22D18/06
Filed: 1990-07-12
Abstract: PURPOSE:To minimize damage caused by leakage of molten metal by detecting the leakage of molten metal sucked in cavity to outside of a mold and stopping suction of the molten metal. CONSTITUTION:Pressure in the cavity 2a in the mold 2 is reduced with a pressure reduction device 14 to suck the molten metal 30 in the cavity 2a. When the molten metal 30a leaks with crazing of the mold 2, etc., a molten metal leakage detecting sensor 40 detects the molten metal leakage and signal is inputted to molten metal leakage control unit 50. The control unit 50 opens an air opening valve 42 and a vacuum pump valve 44 is closed. The pressure in the cavity 2a becomes the atmospheric pressure and the molten metal 30 in the cavity 2a is returned back to a vessel 22 and the leakage is stopped.
Patent JP-H1128714-A (JP)
Title: Method for adjustment of viscosity of ceramic slurry and manufacture of ceramic granulation powder using the same
Inventor: NIMATA YOSHIHIRO
IPC: B28C1/04
Filed: 1997-07-10
Abstract: PROBLEM TO BE SOLVED: To adjust always a slurry at a required viscosity without depending on a value of consumed electric power of a motor and a viscosity measured value of the sampled ceramic slurry by a method wherein the viscosity of the slurry is adjusted by controlling a rotary speed of a rotary shaft of a stirrer based on an output of a torque sensor. SOLUTION: At first a tank 11 or a starter 12 are moved, and adjustment is executed so that a rotary shaft 16 is positioned at a center of a tank 11. Ceramic slurry 10b is put into the tank 11 of a stirrer 10. After setting a specified slurry viscosity to a controller 22, a motor 13 is started. An initial viscosity of the slurry 10b is detected with a torque sensor 20, and the detected signal is inputted to the controller 22. The controller 22 sends a PID control output from a data stored in a memory to an inverter 23 from a difference between an actual torque of the rotary shaft 16 and a required torque, and the inverter 23 controls the motor 13 with a data of an indicator 21 of the controller 22 so that a specific rotational speed is obtained.
Patent JP-H0472012-A (JP)
Title: Ultrahigh vacuum heat treatment furnace
Inventor: OKABE SHUICHI
IPC: F27B5/14
Filed: 1990-07-12
Abstract: PURPOSE:To obtain clean vacuum condition without any adverse influence caused by desorption of oil and moisture and to facilitate maintenance and cleaning by making a vessel in an ultrahigh vacuum heat treatment furnace applied to equipment for the ultrahigh vacuum of the double structures composed of an outer vessel and an inner vessel and setting a heating heater and fiber state heat insulating layer at space between the outer vessel and the inner vessel. CONSTITUTION:The vessel 1 in the ultrahigh vacuum heat treatment furnace is made to double structure of the outer vessel 2 composed of an upper outer vessel 2a and a lower outer vessel 2b divided into upper and lower parts and the inner vessel 3 composed of an upper inner vessel 3a and a lower inner vessel 3b. In the space constituted with the outer vessel 2 and the inner vessel 3, the heaters 5, 5... and the heat insulating materials 6, 6... are set and this is heated with electric power, etc., from outside. Further, at outside of the outer vessel 2, air exhaust pipes 7a, 7b, 7c are set and the air exhaust pipe 7c to is communicated with space in the inner vessel 3 and connected to a vacuum pump 10 through a high vacuum pump 8 and cut-off valves 9a, 9b, and the air exhaust pipes 7a, 7b are directly connected to the vacuum pump 10 through a cut-off valve 9c.
Patent JP-S6442718-A (JP)
Title: Combination circuit
Inventor: BERUNARUDASU UIRUHERUMUSU HEND
IPC: G06F1/32
Filed: 1988-07-26
Abstract: PURPOSE: To maintain the circuit component to be in a desired operating state by increasing and/or decreasing a current supplied to a scaled logic in an optimum method. CONSTITUTION: A power supply circuit has a current supply means in which a current supply to a logic circuit is increased in lots of increment steps in response to supply of data to an input terminal and decreased in lots of decrement steps in response to the end of supply of the data to the input terminal, that is, has an unscaled logic 10, a scaled logic 12 and a scaled injection current source 14. An oscillator input terminal 16 and a data input terminal 18 are connected to the unscaled logic 10. Lines 20, 22 are used to supply respectively an oscillator signal and a data signal to the scaled logic 12. The unscaled logic supplies an ON-signal to the current source 14 via a line 24. The scaled logic 12 receives a scaled injection current from the current source 14 via a line 26. Thus, data are not lost even when power supply is not accurately controlled.
Patent JP-2000015102-A (JP)
Title: Production of methanol synthesis catalyst
Inventor: YASUTAKE SATONOBU
IPC: C07B61/00
Filed: 1998-06-30
Abstract: PROBLEM TO BE SOLVED: To produce a methanol synthesis catalyst having high activity and excellent in durability. SOLUTION: When a metallic salt precipitate contg. copper, a metallic salt precipitate contg. zinc and aluminum and a metallic salt precipitate contg. at least gallium or further contg. one or more elements selected from alkaline earth metals and rare earth elements are formed and fired to produce a methanol synthesis catalyst, the metallic salt precipitates are formed so that the metallic salt precipitate contg. copper is finally formed and the objective methanol synthesis catalyst for the synthesis of methanol from gas consisting essentially of hydrogen and carbon monoxide and/or carbon dioxide is obtd.
Patent JP-S57108230-A (JP)
Title: Manufacture of electrical contact material
Inventor: TSUJI HITOSHI
IPC: H01H11/04
Filed: 1980-12-25
Abstract: PURPOSE: To obtain an electrical contact material having both characteristics of alloy powder and alloy granules by dropping a molten Ag alloy into a gas from nozzle holes, solidifying it in a liq. in the form of a disk, and subjecting the resulting disks to internal oxidation, compression and sintering.  
     CONSTITUTION: A molten Ag alloy 2 in a melting crucible 1 is dropped into the air from a plurality of holes 6 of a nozzle 4, received in a cooling tank 5 filled with water or the like, and solidified in the form of a flat disk. The resulting disks are internally oxidized, cold compressed, and sintered to obtain an electrical contact material. By this method alloy granules of an arbitrary shape can be formed in accordance with the oxidation progress speed of the Ag alloy for internal oxidation, and the production efficiency is enhanced considerably. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H0848387-A (JP)
Title: Fixing tool and opening/closing tool
Inventor: FUJIKURA HIROSHI
IPC: B65D85/57
Filed: 1994-08-05
Abstract: PURPOSE:To obtain a tool that can stably hold an article and is produced at a low cost and reduced in size by a method wherein adhesion of a film is not transferred to an article to be taken out. CONSTITUTION:Resin-made self-bonding films 9A-9C each capable of detachably holding an article by its bonding power are laminated on surfaces of substrates 2A, 2B. The adhesion of the films 9A-9C are determined so that the resin may not be transferred to the article to be taken out.
Patent JP-H0849288-A (JP)
Title: Surface processing machine for inside of pipe
Inventor: MAEDA HIROTOSHI
IPC: F16L55/18
Filed: 1994-08-05
Abstract: PURPOSE:To provide a surface processing machine to make a roughing process for the smooth inner surface of a pipe made of such a material as ceramic or polyvinyl chloride, with which processing can be made simply by manipulation on the ground. CONSTITUTION:Rubber sleeves 3, 3 capable of expanding and contracting are furnished as surrounding the front and rear parts of a body 2, and the air fed from on the ground is introduced to or exhausted from the inside circumferences of the sleeves 3, 3, and thereby the sleeves 3, 3 are fixed with possibility of expanding or contracting. A rotary brush 6 rotated in the outside circumferential direction by a motor 5 is furnished between the front and rear sleeves 3, 3, and cable tools 7, 7 and running wheels 8, 8... to support the body 2 are installed in the front part and rear part of the body 2.
Patent JP-H0234956-A (JP)
Title: Method for breaking semiconductor substrate
Inventor: KAWAKAMI YORISADA
IPC: H01L21/78
Filed: 1988-07-25
Abstract: PURPOSE:To eliminate a damage, a scratch, and to improve characteristics, quality by impregnating a semiconductor substrate with deionized water in grooves formed in advance when the substrate is broken in necessary size, and then solidifying it. CONSTITUTION:The surface of a semiconductor substrate 1 is sawed in depth of 80% of the thickness of the substrate 1 at a necessary pitch by a sawing machine to form grooves 2. Then, the substrate 1 adheres to a polyester insulat ing film 3 by utilizing static electricity charged at the film, and deionized water 4 is poured from the surface of the substrate 1 in the grooves 2. The water 4 presented in the grooves 2 and on the surface is quickly refrigerated to ice 5. Cracks 6 are generated from the end of the bottom toward the bottom by the volumetric expansion of the solidified water for breaking. Thus, since no scratch, damage are introduced to the surface and interior of the substrate 1, characteristics and quality are increased in stability.
Patent JP-S6077150-A (JP)
Title: Flat glass for display and production thereof
Inventor: UCHINO MASAICHI
IPC: H01J11/22
Filed: 1983-10-05
Abstract: PURPOSE:To produce a flat glass for displays having reduced reflected light easily at a low cost, by forming an uneven thin film of an inorganic substance having a refractive index close to that of glass on the flat glass using an aqueous solution of water glass and a high polymer. CONSTITUTION:A mixed aqueous solution of water glass or a water-soluble chloride, e.g. Zn, Al, In, Sn, Pb, Ti or Zn, etc. and a water-soluble high polymer, e.g. polyvinyl alcohol (PVA), is applied to a flat glass and exposed to heat or an alkali vapor to convert the coat into a water-insoluble oxide or hydroxide and remove the above-mentioned high polymer. Thus, a flat glass for displays having a layer of the inorganic substance having a refractive index close to that of the glass, unevennesses thereon and little reflected light is obtained. The above- mentioned inorganic substance has preferably >=0.07mum depth of the unevennesses on the average and -0.4-+0.6 refractive index range based on that of the glass.
Patent JP-H0851365-A (JP)
Title: D/a converter circuit
Inventor: WAKASHIRO KUNIKO
IPC: H03M1/06
Filed: 1994-08-05
Abstract: PURPOSE:To prevent the damage to a switch or a resistor due to overcurrent and to improve reliability in a D/A converter circuit using a weighting impedance. CONSTITUTION:A protecting circuit 22 is provided for preventing overcurrent due to short-circuiting between input terminals 1 and 2. Then, when switch control signals 29, 30 and 31 from a control circuit 21 are changed, it is prevented that whole b-contact switches 11, 12 and 13 and a-contact switches 14, 15 and 16 are simultaneously turned on.
Patent JP-H0351400-A (JP)
Title: Cover material of glassine paper
Inventor: KAWAMURA YOSHITAKA
IPC: D21H27/00
Filed: 1989-07-18
Abstract: PURPOSE:To obtain the subject cover material as cover material for PTP packaging having moisture-resistant effect and brittleness to make readily break by applying transparent heat-resistant filling agent on one face of glassine paper. CONSTITUTION:For instance, phenoxy resin is mixed with butyl etherified melamine resin and solvent to obtain a heat-resistant filling agent. Then, one face of glassine paper is coated with said filling agent to afford the aimed cover material.
Patent JP-H0936812-A (JP)
Title: Optical repeating transmission system
Inventor: SUZUKI KATSUO
IPC: H04B10/29
Filed: 1995-07-21
Abstract: PROBLEM TO BE SOLVED: To prevent the erroneous reception of monitoring information and to enable a reception at high speed, with high sensitivity and high accuray and the monitoring of a transmission line with high reliability by multiplexing a monitoring command signal with a reference signal at a repeating station, returning the signal and matching the delay time of the reference signal received on the side of a terminal station, based on an original reference signal. SOLUTION: A terminal station A receives the frequency information synthesized in an optical repeater R1 and a reference signal in a command/reference reception part 2 and transmits the reference signal to a delay detection part 3. In the delay detection part 3, the reference signal generated in a command/ reference generation part 1 and the reference signal received by a reception part 2 are compared and the delay time is detected. By deciding whether this detected delay time is the delay time corresponding to a monitoring command signal or not, whether the monitoring command signal is rightly responded in a repeater R1 or not can be confirmed.
Patent JP-2000015835-A (JP)
Title: Ink jet printer and printing method
Inventor: TAKAHASHI YUICHI
IPC: B41J2/185
Filed: 1998-06-30
Abstract: PROBLEM TO BE SOLVED: To print a correct image at all times by performing recovery operation of print head surely while suppressing consumption of ink being discharged therefore. SOLUTION: An image is printed on a sheet using a print head 3 ejecting ink from a plurality of ink ejection openings while performing recovery operation where ink uncontributive to image printing is discharged from the print head 3. Recovery operation is performed by setting an ink ejection opening requiring recovery operation among a plurality of ink ejection openings an ink uncontributive to image printing is discharged only from the ink jet opening thus set.