baber/WOPTO huggingface dataset:
Patent JP-H11177530-A (JP)
Title: Low speed frequency hopping spread spectrum communication method and radio communication system using the communication method
Inventor: SATO YASUSHI
IPC: H04B1/7143
Filed: 1997-12-15
Abstract: PROBLEM TO BE SOLVED: To easily and quickly improve the communication quality by checking the communication quality of a hopping pattern and changing the hopping pattern into the auxiliary one at all stations if an inferior communication state is decided at least at one station. SOLUTION: The auxiliary hopping patterns including the communication fault countermeasure hopping patterns are previously set at a radio master station 11 and plural radio slave stations 12 forming a radio zone Z1 in addition to the current hopping patterns respectively. Under such conditions, the low frequency hopping spread spectrum communication is carried out between the station 11 and the stations 12 based on those hopping patterns. The communication quality of the current hopping patterns are periodically checked, and the current hopping patterns are automatically changed into the auxiliary ones at all stations if an inferior communication state is decided at least at one station.
Patent JP-H07176232-A (JP)
Title: Spark preventive plate of insulator string
Inventor: FUKADA YASUHIRO
IPC: H01B17/04
Filed: 1993-12-21
Abstract: PURPOSE:To prevent a spark due to minute contact removal repeated between a ball member and a cotter pin when an insulator string swing by the wind, generating radio interference in neighboring facilities. CONSTITUTION:A spark preventive plate 4 is installed between a ball member 1d and a cotter pin 3. At the upper surface of the preventive plate 4, tongue pieces 4a and 4b furnished with upward elasticity are provided and push the ball member 1d at the front side and the rear side. The tongue piece 4a stops the removal of the preventive plate 4, while the tongue piece 4b secures the constant contact with the ball member 1d. The preventive plate 4 has both-side- plates 4c, and the plates 4c are guided to both side walls of a cavity to regulate the inserting direction.
Patent JP-2000226262-A (JP)
Title: High-hardness and high-strength sintered compact
Inventor: KUKINO AKIRA
IPC: C22C29/16
Filed: 1999-12-03
Abstract: PROBLEM TO BE SOLVED: To obtain a high-pressure phase-type boron nitride-based sintered compact excellent in both mechanical strength and toughness. SOLUTION: This sintered compact comprises hard grains obtained by covering high-pressure-type boron nitride grains with a coating layer and a binding phase integrating itself with these hard grains, wherein the coating layer is made from at least one kind of starting material selected from nitrides and borides of Ti, Zr and Hf and solid solutions thereof, having a thickness of 0.09-2 μm on average. The stock composition of the binding phase comprises 0.5-40 wt.% of at least one kind selected from Al, iron series elements, and nitrides and borides thereof, <5 wt.% of oxide(s) thereof, and the rest of at least one kind selected from nitrides and bordies of Ti, Zr, Hf and Ta with inevitable impurities, and the hard grains accounts for 10-99 wt.% of the total stock before sintered.
Patent JP-H07181709-A (JP)
Title: Electrophotographic photoreceptor and electrophotographic device equipped with that electrophotographic photoreceptor
Inventor: YAMAGAMI MASAAKI
IPC: G03G5/147
Filed: 1993-12-22
Abstract: PURPOSE:To obtain a protective material having excellent wear resistance, enough hardness to prevent scratches, and excellent contamination resistance and release property, and further to obtain an electrophotographic photoreceptor which shows little changes in electric characteristics against changes in temp. and humidity and shows no decrease in electrophotographic characteristics by incorporating polymers of polyenes or poly-ynes and polythiols into a protective layer. CONSTITUTION:This electrophotographic photoreceptor has at least a photosensitive layer and a protective layer on a conductive supporting body and can be electrified with positive or negative charges. The protective layer contains polymers of polyenes or poly-yes and polythiols. The polymers of polyenes or poly-ynes and polythiols are produced by producing thiyl radicals by hydrogen abstraction reactior of polyfunctional thiols with a proper radical initiator and adding the thiyl radicals to carbon-carbon unsatd. bonds. As for the coating method of the coating liquid for the protective layer, any method can be used such as spraying, dipping and roll coating as far as a uniform coating film can be obtd.
Patent JP-2001164523-A (JP)
Title: Traffic sign board restraining fallen snow thereon
Inventor: IMAZU RYUJI
IPC: E01F9/00
Filed: 1999-12-06
Abstract: PROBLEM TO BE SOLVED: To provide a traffic sign board restraining fallen snow thereon so that a car and a pedestrian are not damaged by the falling of a snow mass falling on the upper section of a sign board and an icicle. SOLUTION: The upper section of a sign board body is bent backwards and a gable-shaped roof is formed, and both inclinations of a gable-shaped roof surface are formed at 60 deg. or more to a horizontal plane. Both inclinations are set at different angles of 60 deg. or more respectively while a vertical snow- cutting board is installed at the top section of the roof and snow is made easy to fall. Hydrophilic treatment is executed on the surface of the roof, snow is made easy to fall and snow covering is inhibited.
Patent JP-H11227160-A (JP)
Title: Conveying chain for chain conveyor for supporting gripper pawl unit and sheet-feed printer having it
Inventor: GUNSCHERA FRANK
IPC: B65H29/04
Filed: 1998-12-04
Abstract: PROBLEM TO BE SOLVED: To reduce a wear generated on a folding area made of a sprocket wheel of a conveying chain of a chain conveyor for supporting a gripper pawl unit. SOLUTION: Independently rotatable chain rollers 5.1', 5.1", 6.1', 6.1" are disposed in alignment on link pins 5.1, 6.1 of chain links 5, 6. The rollers 5.1', 6.1' engaged with a sprocket wheel 4 are steadily stopped to the wheel 4, while the rollers 5.1", 6.1" in contact with a feeding surface 7.1 of a chain guide 7 are formed to be rotatable.
Patent JP-H07108367-A (JP)
Title: Low pressure casting method and apparatus thereof
Inventor: FUKUMOTO YASUHIRO
IPC: B22D18/04
Filed: 1992-12-25
Abstract: PURPOSE:To shorten the solidified time of molten metal without developing the shrinkage hole, even in the case of lowering the temp. of a metallic mold. CONSTITUTION:A communicating part of a sprue part 20 with a cavity C is extended to the horizontal direction. Electro-magnets 22 are arranged neat the lower part of this horizontal part 20b (communicating part) and shifting magnetic field shifted in the direction crossing at the right angle to the plane of the figure is generated at the horizontal part 20b with the electro-magnets 22. The molten metal passed through the horizontal part 20b receives force in the magnetic field shifting direction of the shifting magnetic field and flows to the vertical direction along side walls after hitting to the side walls of the horizontal part 20b. By this method, the molten metal is stirred in the vertical direction and flowed into the cavity C while drawing the spiral flow lines. Further, the heat exchange is executed between the low temp. molten metal lowering the temp. after flowing the cavity C and the high temp. molten metal expected to flow into the cavity C, and the solidification of the molten metal in the cavity C is uniformized and the development of the shrinkage hole in the product is prevented. Further, the structure of the product is made to be fine by the electromagnetic stirring action of the molter metal and the tensile strength is improved.
Patent JP-H06196413-A (JP)
Title: Reduced-pressure cvd film growth device
Inventor: SASAKI NOBUYOSHI
IPC: H01L21/205
Filed: 1992-12-25
Abstract: PURPOSE:To diminish the dispersion in a wafer thickness by equalizing the gas diffusion into a boat while avoiding the damage to a boat or a cover when the boat is inserted into a furnace within the title vertical reduced pressure CVD film growth device. CONSTITUTION:Within the title film growing device on wafers 4 by leading-in CVD gas 6 to be fed to an inner tube 2, a boat 3 containing multiple wafers 4 and a cover 5 covering the open part of the boat 3 are assembled outside the vertical furnace to be inserted into the inner tube 2 from an underneath part.
Patent JP-H06195816-A (JP)
Title: Magnetic recording and reproducing device
Inventor: SAKATANI TOMOHIKO
IPC: G11B15/467
Filed: 1992-12-25
Abstract: PURPOSE:To shorten and also stabilize the phase settling time for a capstan motor in simple constitution. CONSTITUTION:The number of pulses of an FG signal of the capstan motor 2 is counted by a counter 5 to obtain count data. Time data for showing a required time from arrival of a reference edge of an HSW signal from an HSW signal outputter 8 to output of a starting command signal by an operation switch 16 is outputted by a time data output circuit 12. A delay time is calculated by a delay time calculating circuit 13 based on the count data and the time data, and is given to a starting control circuit 15. The capstan motor 2 is started up by a capstan motor control circuit 11 in accordance with a starting control signal from the starting control circuit 15. By this method, the phase settling time for the capstan motor can be shortened and also stabilized in simple constitution.
Patent JP-2001163653-A (JP)
Title: Shrinkage reducing agent for cement or the like
Inventor: SHIMAMURA NOBUYUKI
IPC: C04B24/32
Filed: 1999-12-06
Abstract: PROBLEM TO BE SOLVED: To provide a cement shrinkage reducing agent having a superior shrinkage reduction effect on a formed article of cement or the like. SOLUTION: This shrinkage reducing agent is represented by the general formula R1O-(AO)X-H (wherein: R1 is a 1-8C chain hydrocarbon group; (AO)X is a polyoxyalkylene group formed by copolymerizing 1-2 mol of ethylene oxide and 1-10 mol of propylene oxide; and x is an integer of 2-12) and has a superior shrinkage reduction effect.
Patent JP-H10184834-A (JP)
Title: Continuously variable transmission
Inventor: TERAJIMA TAKAO
IPC: F16H9/18
Filed: 1996-12-25
Abstract: PROBLEM TO BE SOLVED: To improve durability of a joint part between a fixed sheave and a planetary gear (carrier) and to reduce an axial directional dimension of a continuously variable transmission. SOLUTION: An engine output is transmitted from a carrier 19 to a fixed sheave 52 via a joint part 58 so as to rotationally drive the fixed sheave 52, and this rotation is transmitted to a secondary pulley via a belt 57. In this process, although the fixed sheave 52 receives a large load A from the belt 57, the joint part 58 does not receive an excessive load as it is arranged so as to overlap a large diameter bearing 59 in the axial direction, and its durability can be improved. When the joint part 58, the large diameter bearing 59, and a small diameter bearing 60 are arranged so as to overlap each other in the axial direction, an axial dimension can be reduced.
Patent JP-H08240787-A (JP)
Title: Illuminator and production of device
Inventor: NISHIWAKI MASAYUKI
IPC: B23K26/064
Filed: 1995-12-11
Abstract: PURPOSE: To efficiently illuminate a linear area by properly setting respective elements for illuminating a plane to be illuminated. CONSTITUTION: This device is provided with a first anamorphic optical system 6 focusing an illuminating beam in regard to a first direction (y direction) and a second anamorphic optical system 7 focusing the beam in regard to a second direction (z direction) orthogonal to the first direction. Moreover, this device is provided with a third optical system 8 forming a linear illuminated area extended in the first direction on the plane to be illuminated by again focusing the illuminating beam focused in regard to the second direction and by defocusing it in regard to the first direction.  Further, this device has a beam splitter 4 provided with a pair of prisms for forming plural pieces of luminous fluxes as illuminating beams while dividing the light from a light source and the third optical system 8 superposes plural pieces of luminous fluxes on the plane 10 to be illuminated and focuses plural pieces of luminous fluxes on the plane 10 to be illuminated in regard to the second direction and defocuses them in regard to the first direction.
Patent JP-H11177100-A (JP)
Title: Insulated gate transistor
Inventor: MATSUMOTO SATOSHI
IPC: H01L21/336
Filed: 1997-12-16
Abstract: PROBLEM TO BE SOLVED: To miniaturize a transistor and to increase its density by leading the drain region to a single-crystal semiconductor substrate where a first insulation film is adhered to the first main surface of a single-crystal layer via a conductive layer. SOLUTION: In a substrate, a first insulation film 9 is adhered to the side of a flat surface 9a at the opposite side of a single-crystal semiconductor layer 1 using a conductive adhesive. A transistor consists of a single-crystal semiconductor substrate 30' with a second conductivity where an impurity for giving a second conductivity is introduced with a relatively high concentration. Then, a window 29 extended between a drain region 4 and the single-crystal semiconductor substrate 30' is formed on the first insulation film 9, and the window 29 is buried by a conductive layer 31 connected to the drain region 4 and the single-crystal semiconductor substrate 30'.  More specifically, the drain region 4 is led to the single-crystal semiconductor substrate 30' where a first insulation film 9 on a first main surface 1a of the single-crystal semiconductor layer 1 is adhered via a conductive layer 31.
Patent JP-H09155956-A (JP)
Title: Polyester blow bottle
Inventor: ISHIWATARI SHUJI
IPC: C08G63/189
Filed: 1995-12-12
Abstract: PROBLEM TO BE SOLVED: To form a polyester blow bottle with excellent heat resistivity and destaticizing property. SOLUTION: This ester blow bottle is formed by blow molding polyester resin consisting of 0.1-0.5wt.% of polyethylene glycol (B) having a weight average molecular weight of 1000-50000 and 0.01-2wt.% of specific sulphonic acid alkali metal salt (C) contained relative to polyester (A) composed of a dicarboxylic acid component containing 50mol.% of naphthalene dicarboxylic acid to all of the acid component and diol component.
Patent JP-H05177178-A (JP)
Title: Pipe interior cleaning device
Inventor: TAKEMAE EIJI
IPC: B08B9/04
Filed: 1991-12-27
Abstract: PURPOSE:To provide a pipe interior cleaning device capable of cleaning easily the inner wall of even a pipe of a large inside diameter and further without restriction of the inside diameters, and of inserting easily from a manhole into the pipe and being conveniently carried. CONSTITUTION:The pipe interior cleaning device is made of rubber or a flexible plastic and slidably movable along the inner wall of a pipe to remove extraneous matter therefrom. This pipe cleaning device has a hollow cylindrical body 2 closed at one end and provided with ring-like tubular members 3 formed on its outer peripheral surface integrally therewith and adapted to expand and contract while the cleaning device is moving slidably along the inner wall of the pipe. The tubular member 3 is provided with an expandable and contractible tubular layer 3a and a reinforcing layer 3b and pressure air is sent thereinto from an air supply opening 3c.
Patent JP-H09154464-A (JP)
Title: Sinker case
Inventor: KAWASE MITSUAKI
IPC: A01K97/06
Filed: 1995-12-11
Abstract: PROBLEM TO BE SOLVED: To provide a sinker case capable of readily taking in and out sinkers, housing the sinkers without disturbing other parts and facilitating the handling treatment during and after the use thereof. SOLUTION: This sinker case comprises a case body 7 for housing many sinkers 5 and 6 with sprawl wires side by side and an engaging and holding means 4 for engaging and holding the case body 7 on the upper side of a cooler box 1 so as to enable the installation and removal therefrom. Many openings 8 on the inserting side for inserting sinker parts are arranged side by side on the upper side of the case body 7 and many openings 9 on the engaging side for engaging the base sides of the inserted sinker parts, preventing the slip and inserting the sprawl wires connected to the base sides of the sinker parts downward are bored on the lower side of the case body 7.  Thereby, the many sinkers can readily be brought together with the cooler box 1 and the desired sinkers can easily be selected and taken out at the time of use without catching the sprawl wires by oneself and others or bending the sprawl wires. The sinkers can be carried back in the housed state of the sinkers after the use, directly washed with water, dried and preserved.
Patent JP-H05183089-A (JP)
Title: Package for semiconductor device
Inventor: FUDEYASU YOSHIO
IPC: H01L23/50
Filed: 1991-12-27
Abstract: PURPOSE:To provide a package with high packing density for a semiconductor device, by positioning a plurality of first lead terminals and a plurality of second lead terminals mutually in a compensatory state. CONSTITUTION:An IC package 1 is made up of a package body 5, and a plurality of lead terminals 2a and 2b. The lead terminals 2a are provided at a central part of one side 3a at regular intervals in the package body 5. The lead terminals 2b are provided at a central part of the other side 3b at regular intervals. The lead terminals 2a elongated from side 3a and the lead terminals 2b elongated from the side 3b are positioned mutually in a compensatory state. When these IC packages 1 are mounted in array, a pair of adjacent IC packages 1 are so arranged that lead terminals 2b of one IC package 1 are positioned on both sides of lead terminals 2a of another IC package 1.
Patent JP-2000168425-A (JP)
Title: Dump mechanism of vehicle
Inventor: KOBAYASHI OSAMU
IPC: B60P1/00
Filed: 1998-12-07
Abstract: PROBLEM TO BE SOLVED: To certainly prevent a contact and an interference of a rear bumper with articles to be conveyed and a tank (hatch cover) at the time of discharge of the articles to be conveyed while a protection standard is satisfied. SOLUTION: A tank 2 for accommodating articles to be conveyed is pivotally supported to a chassis 1 through a damp-supporting shaft 7 in a car width direction and is pivoted and driven by a damp mechanism 6 making the damp- supporting shaft 7 as a center. A discharge of the articles to be conveyed is carried out by making the tank 2 to an inclined attitude and opening a discharge door 4. If the tank 2 is movable in a forward/backward direction of a chassis 1 and the tank 2 is retired by a predetermined quantity by the damp mechanism 6 until the discharge of the articles to be conveyed is started, a contaminant and a damage of a rear bumper 15 caused by the articles to be conveyed can be prevented while a protection standard is satisfied.
Patent JP-H10191569-A (JP)
Title: System interconnection protection equipment for power generating facility
Inventor: KATO TOYOKUNI
IPC: H02J3/38
Filed: 1996-12-26
Abstract: PROBLEM TO BE SOLVED: To reliably detect and protect the independent operation of private power generation in system interconnection at the private power generating facility side by increasing frequency fluctuation by a function circuit and detecting frequency anomaly or an excessive rate of change in frequency. SOLUTION: Frequency is detected by a frequency detector 21 from an output voltage of an AC generator 7 and, from this detected frequency, the rate of frequency change V30 is detected by a rate of frequency change detector 30. A detector 31 for excessive rate of frequency change detects whether the rate of frequency change V30 exceeds set point; and if it exceeds the set point, an abnormal output signal V31 is output and given to a failure trip circuit 20. The failure trip circuit 20 gives a trip signal to an interrupter 6 and opens the cable way. And if a change occurs, df/dt becomes a waveform with the phase advanced by 90 deg. from the above. In the case of df/dt>0, the frequency is in rising state and, in this period, a voltage drop command is output from a function circuit 32, the frequency f acts to further rises, and the detection of the independent operation becomes possible.
Patent JP-H10188312-A (JP)
Title: Objective lens driving device
Inventor: TAKAHASHI NAOMASA
IPC: G11B7/09
Filed: 1996-12-26
Abstract: PROBLEM TO BE SOLVED: To provide an objective lens driving device which can swiftly dispose an objective lens in a prescribed position without attending upon vibration at the time of changeover operation. SOLUTION: Four magnetic substances and coils 85 and 86 respectively are fixed symmetrically around a rotary shaft to a surrounding part of a lens holder 75 fixed with 1st and 2nd objective lenses 34 and 35, and a supporting body 74 is fixed with four permanent magnets 81 and 82 corresponding to the coils 85 and 86 respectively. When a changeover signal is inputted to the coils, the lens holder 75 is rotated to change the objective lenses 34 and 35. The lens holder 75 is provided with reflecting mirrors 66 and 67 corresponding to the objective lenses 34 and 35, and an optical unit for monitoring movement of these reflecting mirrors 66 and 67 is provided on the supporting body 74.  Vibration at the time of rotating the lens holder 75 is suppressed by monitoring the movement of the reflecting mirrors 66 and 67, and hence the objective lenses 34 and 35 can accurately and swiftly be positioned.
Patent JP-H10188331-A (JP)
Title: Optical pickup and disk device having the pickup
Inventor: YAMAZAKI SHIGERU
IPC: G11B7/135
Filed: 1996-12-26
Abstract: PROBLEM TO BE SOLVED: To reduce the deflection of laser beams at the time of recording in a disk device which has an anamorphic prism for shaping the cross-sectional shape of the beams. SOLUTION: The cross-sectional shape of laser beams LB radiated from a semiconductor laser 31 is shaped by an anamorphic prism 33. The prism 33 is composed of the combination of two kinds of glass materials 33A and 33B. The material 33A having a smaller refractive index is arranged at the incident side of the beams LB and the material 33B having a larger refractive index is placed at the light-emitting side. Thus, if the wavelength of the beams LB is varied, the deviation in the direction of the beams LB from a designed value is kept very small. Therefore, practically no wobbling is observed in the recording pattern against the track at the time of recording, recording dithering and miserasing are reduced and a high density recording narrow in track pitch is accomplished.
Patent JP-H05154887-A (JP)
Title: Method and device for injection molding of rubber material
Inventor: KAWADA HIDEMI
IPC: B29K21/00
Filed: 1991-12-02
Abstract: PURPOSE:To obtain a dimensional stability of a rubber product by uniformizing vulcanized qualities and physical characteristics of rubber products obtained per molding. CONSTITUTION:In a rubber material injection molding method in which a rubber material is charged in a cavity of injection molds 3b, 4b, clamped, and molded under heat, after a rubber material is injected to be charged, the molds 3b, 4b are heated; and after a mold temperature reaches a set vulcanization temperature T1, the rubber material is vulcanized at this temperature for only a predetermined time tc.