baber/WOPTO huggingface dataset:
Patent JP-H02170467-A (JP)
Title: Semiconductor device and its manufacture
Inventor: HIRUTA YOICHI
IPC: H01L29/40
Filed: 1988-12-22
Abstract: PURPOSE:To operate a circuit at high speed by a method wherein a resistance element is formed in a resistance film whose resistance value is comparatively large and a wiring part is formed in a resistance film whose resistance value is low. CONSTITUTION:A gate oxide film 2 is formed on the surface of a semiconductor substrate 1; a field oxide film 3 for element isolation use is formed selectively only in an element isolation region of its surface. Then, a poly-Si film 4 is formed on the whole surface. A disilicide film 5 is formed on the surface of the film 4. The film 4 and the film 5 are patterned; a wiring part and a resistance element are formed. The surface of the film 5 is coated with a resist; the film 5 in a part corresponding to a region used to form a resistance element for input protective use is removed by a photoetching method; a disilicide film 5a is formed; the surface of the film 4 in a prescribed region is exposed. After that, a film 6 is removed. A first resistance film is formed on the film 2; a prescribed region on its surface is removed; a second resistance film whose resistance value is lower than that of the resistance film is formed; a resistance element is formed in the first resistance film; a wiring part is formed in the second resistance film; accordingly, a circuit can be operated at high speed.
Patent JP-H06146218-A (JP)
Title: Method of constructing bridge pier
Inventor: NAKAI SAKAE
IPC: E01D19/02
Filed: 1992-11-10
Abstract: PURPOSE:To shorten the construction period. CONSTITUTION:Four ribbed steel pipes 6, 7, 9, 10 are planted on a footing 5, and further a plurality of cylindrical unit type precast pipes 15 are stacked one upon another so as to build up a tower 21 surrounding the ribbed pipes 6, 7 and a tower 22 similar to the tower 21, surrounding the ribbed steel pipes 9, 10. Binodular shaped precast pipes 15 are stacked one upon another at the upper ends of the towers 21, 22 which are connected together. Concrete 30 is placed in a space 31 defined by the unit type precast pipes 15, and the ribbed steel pipes. After the concrete is cured, the towers 21, 22 are extended in similar manner so as to complete the construction of a bridge pier.
Patent JP-H07233480-A (JP)
Title: Resin-coated aluminum pipe for pipeline and its production
Inventor: ARA CHIAKI
IPC: B32B15/08
Filed: 1994-12-27
Abstract: PURPOSE:To obtain a resin-coated aluminum pipe for pipeline with the adhesion of the resin improved and excellent in plastic workability such as bendability. CONSTITUTION:At least the outer periphery between the outer and inner peripheries of a seamless aluminum pipe having 2.0-5.0mum surface roughness Rz is chromated to form a chromate film having 0.4-1.0mum thickness, and a resin is deposited on the chromate film to form a resin-coated aluminum pipe for pipeline. Otherwise, the surface of a seamless aluminum pipe is etched with acid or alkali to obtain 2.0-5.0mum surface roughness Rz, and at least the outer periphery between the outer and inner peripheries is chromated to form the chromate film having 0.4-1.0mum thickness, the pipe is heated to 150-420 deg.C, and then the film is coated with the resin by the ordinary extrusion to produce the objective resin-coated aluminum pipe for pipeline.
Patent JP-H09143310-A (JP)
Title: Semiconductor rubber
Inventor: FUKUNAGA NORITOMO
IPC: C08K3/04
Filed: 1995-11-21
Abstract: PROBLEM TO BE SOLVED: To obtain a good reproducibility of a semiconducting rubber having a specified volume resistivity and suitable for, e.g. a charging roll in an electrophotographic system by blending a semiconducting rubber base material having a specified volume resistivity with particles of a substance having a specified volume resistivity. SOLUTION: This semiconducting rubber base material having a volume resistivity in a range from about 1×10<4> Ω.cm to about 9×10<12> Ω.cm is blended with particles of a substance having a volume resistivity of about 1×10<3> Ω.cm or lower singly or a mixture of these particles with particles of a substance having a volume resistivity of about 1×10<13> Ω.cm or higher to produce a semiconducing rubber having a volume resistivity in a range from about 1×10<3> Ω.cm to about 9×10<13> Ω.cm. Since the semiconducting rubber has a volume resistivity in that range, with the variation between lots being within two figures in Ω.cm units, it is suitable for use as a charging roll, a developing roll, a transfer roll, etc., in an electrophotographic system.
Patent JP-H11141940-A (JP)
Title: Mounting structure of air filter
Inventor: OYAMA HIROSHI
IPC: F24F13/06
Filed: 1997-11-11
Abstract: PROBLEM TO BE SOLVED: To provide a mounting structure of an air filter to facilitate and ensure a mounting work, by a method wherein an air filter unit is mounted on a duct chamber suspending from a ceiling body. SOLUTION: A duct chamber 1 is suspended from and supported at a ceiling body 21. An integral structure air filter unit 2 consisting of an air filter 3, and a filter mounting frame 5 is contained in the air outlet of the duct chamber 1 and fixed by a coupling tool 31. Further, the air filter unit 2 ensures sealing ability through a first sealing material 6. When a plurality of air filter units 2 are contained in the duct chamber 1, the air filter units 2 are easily contained in the duct chamber 1 by coupling together filter mounting frames 5 of the adjoining air filter units 2 through a coupling tool 3.
Patent JP-H05254100-A (JP)
Title: Inking mechanism for printing machine
IPC: B41F31/14
Filed: 1992-12-04
Abstract: PURPOSE: To provide an inking mechanism which can reduce the number of waste sheets after a printing stoppage by using simple means. CONSTITUTION: An ink-distributing drive apparatus is provided with a clutch coupling 13 operable by a releasing device 14. In this case, a periodic axial movement of an ink-distribution roller can be suspended at the time of a printing stoppage and continuous operation of the printing unit.
Patent JP-H03188102-A (JP)
Title: Polymerizable curable composition
Inventor: SAKAMOTO SHOJI
IPC: C08F4/32
Filed: 1989-12-15
Abstract: PURPOSE:To improve the adhesive properties without causing the sagging due to viscosity decrease in thermal curing by compounding a specific ultraviolet- polymerizable compsn. with a thermally curable compsn. CONSTITUTION:100 pts.wt. noncurable monomer having an ethylenically unsatd. double bond (e.g. styrene) is compounded with 0.5-10 pts.wt. photopolymn. initiator (e.g. benzoin) to give an ultraviolet-polymerizable compsn. Separately, 100 pts.wt. epoxy compd. (e.g. a bisphenol A epoxy resin) is compounded with 1-50 pts.wt. curing agent (e.g. 2-ethyl-4-methylimidazole) to give a thermally curable compsn. Then the two compsns. are compounded in a wt. ratio of (1:9)-(9:1).
Patent JP-H03187610-A (JP)
Title: Acoustic correction device
Inventor: GOTOU SOUJIYU
IPC: H03H17/08
Filed: 1989-12-18
Abstract: PURPOSE:To obtain sound signals which are optionally adjustable in not only sound pressure but also phase characteristic by providing a setting means setting the frequency band, the delay time of the delay means and the coefficient of the arithmetic means in a digital signal processing circuit. CONSTITUTION:A digital input acoustic signal from an A/D converter circuit 2 is inputted to n-set of digital signal processing circuits 3(1)-3(n). A key matrix 8 is controlled to set the frequency band to obtain a desired frequency characteristic, an output level of the band and an output delay time. Based on the designated content, a micro computer 7 reads a data determining the characteristics from a ROM 6 to send coefficients a1-am, b to multipliers 32(1)-32(m) and an arithmetic circuit 36 and to send a switching signal to a selector 35 selecting a terminal to obtain a required delay time among terminals of delay circuits 34(1)-34(k). Since the sound pressure and the phase or the like of an output acoustic signal are adjusted to realize an excellent acoustic signal correction device.
Patent JP-H08177676-A (JP)
Title: Solenoid valve
Inventor: KANAMORI HIROYASU
IPC: F02M41/12
Filed: 1994-12-27
Abstract: PURPOSE: To facilitate mounting a solenoid valve in a fuel injection pump without performing positioning, by arranging an external thread part formed in the periphery of a housing, valve body receiving hole and an opening part of a fluid passage, in the solenoid valve, respectively with the same axial center serving as the center. CONSTITUTION: In a solenoid spill valve 25, an external thread part 26b formed in the periphery of a housing 26, valve body receiving hole 26a and an opening part of a fluid passage (lower opening part of fuel passage 28b, external wall opening part of fuel passage P) are arranged respectively with the same axial center Z serving as the center. Accordingly, in the case of mounting the solenoid spill valve 25 in a fuel injection pump, necessity for positioning the opening part of the fluid passage and the opening part of each spill passage in a pump side, in the direction of rotation, is eliminated, and the valve can be easily mounted by only screwing the external thread part 26b to a head part of the pump housing. On the other hand, by constituting a housing member of two members of the valve housing 26 and a valve guide 28, working can be facilitated.
Patent JP-H07153679-A (JP)
Title: Transmission-type multilayer film
Inventor: HAGA TSUNEYUKI
IPC: G03F1/22
Filed: 1993-11-29
Abstract: PURPOSE:To obtain a transmission-type multilayer film which has solved a drop in a reflection factor due to a drop in flatness and a drop in a transmissing due to a membrance and whose reflection factor and transmissivity are high. CONSTITUTION:A transmission-type multilayer film is provided with support bodies 3, 4 which have a transmission window 8 nearly in the center and with a multilayer film 6 which is supported by the support bodies. In the transmission-type multilayer film, the rear surface which comes into contact with the support bodies of the multilayer film 6 and the surface which does not come into contact with the support bodies are constituted respectively of platinum group metals.
Patent JP-H04194569-A (JP)
Title: Freezer-refrigerator
Inventor: SUGIMOTO KAZUO
IPC: F25D11/02
Filed: 1990-11-27
Abstract: PURPOSE:To enable a rapid cooling of a refrigeration chamber and a freezing chamber to be carried out as well as to enable a temperature control to be attained and further to prevent over-cooled state of the refrigeration chamber without generating any flow sound of refrigerant accompanied by a changing-over in a refrigerant flow passage by a method wherein the freezing chamber and the refrigeration chamber are provided with an exclusive evaporator and a fan and then a temperature control of the refrigeration chamber is carried out by driving and stopping the fan in the refrigeration chamber. CONSTITUTION:In the event that only a freezing chamber is rapidly cooled, a compressor 4 is continuously operated, an R cooling fan 6 in a refrigeration chamber is stopped and only an F cooling fan 2 of a freezing chamber is rotated. With such an arrangement, a heat exchanging amount is reduced at an R evaporator 7 and correspondingly a heat exchanging amount at an F evaporator 1 is rapidly increased, a temperature in the freezing chamber is rapidly decreased to enable a rapid cooling of a food to be carried out. Similarly, in the event that only the refrigeration chamber is rapidly cooled, the compressor 4 is continuously operated, the F cooling fan 2 is stopped and only the R cooling fan 6 is rotated. With such an arrangement, a heat exchanging amount at the evaporator 1 is reduce and correspondingly a heat exchanging amount at the R evaporator 7 is rapidly increased so that a temperature in the refrigeration chamber is rapidly decreased and then a rapid cooling of the food can be performed.
Patent JP-2001136835-A (JP)
Title: Tray for moving seedling raising pot
Inventor: AKIMOTO JUNJI
IPC: A01G9/10
Filed: 1999-11-17
Abstract: PROBLEM TO BE SOLVED: To provide a tray for moving seedling raising pots without making the seedling raising pots jump out even when the pots receive violent vertical vibration during movement such as transportation. SOLUTION: This tray 10 for moving the seedling raising pots 12 is obtained by connecting housing parts 16 having a greater depth than that of the seedling raising pots 12, forming overhanging protrusions 22 from edges of openings 20 of the housing parts 16 so as to cover a part of upper brims (18) of the seedling raising pots 12, especially the housing parts 16 of a nearly square shape and providing the protrusions 22 in the four corners or opposite two corners thereof. Otherwise, the tray 10 for moving is provided with freely detachably arranged pressing members (36) for covering a part of the upper brims (18) of the seedling raising pots 12 and the one pressing member (36) is especially arranged for each row or all of the housing parts 16. Recessed parts 26 for plucking out the seedling raising pots 12 are further installed in crosspieces 24.
Patent JP-H02172289-A (JP)
Title: Distributed feedback semiconductor laser
Inventor: YAMAZAKI HIROYUKI
IPC: H01S5/00
Filed: 1988-12-23
Abstract: PURPOSE:To restrain hole burning by a simple method, and realize stable oscillation of single axis mode even at the time of large output by making the groove depth of a diffraction grating shallow in the vicinity of the central part of an active waveguide, and making the depth deeper as the groove approaches more closely to both end surfaces of the active waveguide. CONSTITUTION:The groove depth of a diffraction grating 5 is made shallow in the vicinity of the central part of an active waveguide composed of an active layer 1, a buffer layer 3, and an optical guide layer 4, and is made gradually deeper as the groove approaches more closely to both end surfaces of the active waveguide. In this manner, coupling coefficient is nonuniformly distributed in the direction along the active waveguide, e.g., the axial direction of a cavity. For example, the coupling coefficient in the vicinity of the central part of the resonator is small to be 30cm<-1> or so, and it is gradually increased up to about 70<-1>cm toward the end surface. Hence the electric field distribution becomes flat, and hole burning is effectively restrained. Thereby, hole burning can be restrained by a simple method, and stable oscillation of single axis mode can be realized even at the time of large output.
Patent JP-H05158381-A (JP)
Title: Fixation temperature controller
Inventor: KOJO FUMIYASU
IPC: G04F10/00
Filed: 1991-12-11
Abstract: PURPOSE:To obtain the best preheating conditions at all times without directly measuring environment temperature by varying and setting the electric feed stop period of a heater with the temperature of a fixation part. CONSTITUTION:A 1st timer part 91 measures the 1st time from the time when the temperature of the fixation part reaches prescribed temperature to the time when the temperature falls to the prescribed temperature again after a heater 42 is powered OFF. A 2nd timer part 92 measures the 2nd time from the start of the electric feeding to the time when the fixation part temperature reaches the prescribed temperature. A timer control part 93 performs processes the 1st time and 2nd time by using a data table, etc., to set the electric feed stop period of the heater 42.
Patent JP-H09165645-A (JP)
Title: Building steel for low temperature use having low yield ratio at low temperature
Inventor: MURAOKA RYUJI
IPC: C22C38/14
Filed: 1995-12-15
Abstract: PROBLEM TO BE SOLVED: To reduce the yield ratio of a steel at a low temp. by forming the structure of a steel in which the total content of Nb+V+Ti is regulated to a prescribed value or below into a mixed one essentially consisting of ferrite and bainite. SOLUTION: This steel is the one in which the total content of Nb+V+Ti is regulated to <=0.02wt.%, and its structure is formed of ferrite and bainite. As for the mixed structure essentially consisting of ferrite and bainite, it is not limited to a two phase structure only composed of ferrite and bainite, and, e.g. a trace amt. of pearlite may be partially contained in this structure. By being provided with the above compsn. and structure, the building steel having a low yield ratio at a low temp. of <=0 deg.C can be produced. Concretely, by subjecting the steel having this compsn. to hot rolling and thereafter executing accelerated cooling, the required mixed structure can be obtd.
Patent JP-H06173664-A (JP)
Title: Exhaust emission control device for internal combustion engine
Inventor: IWAKIRI YASUNORI
IPC: F01N3/24
Filed: 1992-12-08
Abstract: PURPOSE:To carry out elimination speedily without deteriorating emission perfor mance by preventing a temperature drop in exhaust gas purifying catalyst. CONSTITUTION:Adsorbent to adsorb HC in exhaust gas is interposed in a bypass passage arranged by bypassing an exhaust gas main passage. When exgaust gas purifying catalyst is activated and elimination becomes OK (S3), prior to eliminating operation of the adsorbent, an electric current is supplied to a heater, and an adsorbent temperature is raised (S4), and a temperature drop in catalyst related to elimination is prevented, and unburnt gas is eliminated gradually to the exhaust gas purifying catalyst (S7).
Patent JP-H09143775-A (JP)
Title: Degreasing method for metallic and nonferrous metallic surface utilizing superheated steam atmosphere of oxygen-free state generated by low-pressure and high-pressure high-temperature superheated steam device and degreasing device therefor
Inventor: SHISHIDO HIROSHI
IPC: C23G5/00
Filed: 1995-11-13
Abstract: PROBLEM TO BE SOLVED: To remove the oil-contg. components of the surfaces of blanks, such as sheet and wire materials or parts, worked articles, etc., formed by using metals and nonferrous metals by injecting a superheated steam in a low-presser and high-pressure high-temp. superheated steam device. SOLUTION: The blanks, such as sheet and wire materials or parts, worked articles, etc., formed by using the metals and nonferrous metals are preheated with a preheater 2 arbitrarily disposed in the inlet section of the main body of the low-presser and high-pressure high-temp. superheated steam device 1 or are directly sent into the low-presser and high-pressure high- temp. superheated steam device 1 formed in the superheated steam atmosphere of an oxygen- free state. While the works are rotated and moved on a conveyor or spiral rotating rod for moving the works in the main body, the low-pressure and high-pressure high-temp. superheated steam is ejected for nearly 5 to 30 minutes under an optimum pressure and at 150 to 600 deg.C and the works are degreased by the steam ejection of the superheated steam utilizing the superheated steam atmosphere of the oxygen-free state in the low-presser and high-pressure high-temp. superheated steam device 1.
Patent JP-H03189040-A (JP)
Title: Form rolling device for serration with snap ring groove
Inventor: OKI MASAOKI
IPC: B21H7/18
Filed: 1989-12-20
Abstract: PURPOSE:To reduce the manhour and the equipment cost by providing a pair of rollers having a peripheral direction projecting line part of a cross sectional shape corresponding to a snap ring groove shape, and a pair of roller feeding means for pressing the rollers against a work from the direction vertical to a die. CONSTITUTION:A ball screw shaft 22b is turned by a servo-motor 23, a moving base 22a is moved under the guidance of a guide rod 22c, and a pair of supporting arms 20 and a pair of rollers 17 supported thereby are moved forward and backward from the left and the right directions against a shaft part of a work 1, respectively. While a serration 1c is being brought to form rolling by dies 4, 5, peripheral direction projecting line parts 17a of those rollers 17 are pressed against the shaft part of the work 1 which is turning, from the direction vertical to the dies 4, 5, respectively. In such a way, a snap ring groove 1b is brought to form rolling to the shaft part of the work 1.
Patent JP-H11158621-A (JP)
Title: Production of semiconductor device and producing device
Inventor: WATANABE ETSUKO
IPC: H01L21/285
Filed: 1997-11-28
Abstract: PROBLEM TO BE SOLVED: To prevent the thinning of coating thickness on the outer circumferential part of a substrate at the time of producing a semiconductor device by an ionization sputtering method. SOLUTION: The space between a target 10 and a substrate 20 is provided with an induction coil 5, plasma is generated, and sputtering particles (+) released from the target are ionized. A bias electrode 7 surrounding the circumference on the outside of the substrate is provided, and a negative bias is applied by a high frequency power source. By staggering the timing of the bias to be applied to the bias electrode 7 and a stage part 3, the uniformization of the thickness of the coating to be deposited on the substrate is attained. The bias electrode 7 is made movable up and down.
Patent JP-H06162691-A (JP)
Title: Digital signal reproducer
Inventor: NOCHIDA KAORU
IPC: G11B20/10
Filed: 1992-11-13
Abstract: PURPOSE:To accurately and automatically regulate an equalizer to an RF signal in a short time. CONSTITUTION:Reproduced data of a digital VTR is supplied to an equalizer 3. A Viterbi decoder 4 is connected to the equalizer 3 to obtain data train having highest likelihood from reproduced data by using a Viterbi algorithm. An adding comparison calculator in the decoder 4 has a metric limiter for inverting an MSB in order to prevent divergence of the metric when the MSB of the residual metric is all '1'. The number of inversion of the MSB is counted by a counter 6. A counted value of the counter 6 corresponds to a metric increase quantity, and a calculating controller 7 controls the equalizer 3 so that the metric increase quantity becomes minimum.
Patent JP-H01168734-A (JP)
Title: Production of polyamide-imide elastomer
Inventor: SUZUKI YOSHIO
IPC: C08G73/14
Filed: 1987-12-25
Abstract: PURPOSE:To obtain the title elastomer having a low hardness, excelling in transparency, heat resistance and mechanical properties and being useful for hoses, sheets, etc., by reacting caprolactam with a polymeric glycol and a tribasic or tetrabasic carboxylic acid or its anhydride under specified conditions. CONSTITUTION:Caprolactam in an amount of 10-65wt.% based on the intended elastomer, at least one polymeric glycol selected from a polyoxyalkylene glycol and an alpha,omega-dihydroxyhydrocarbon each having a number-average MW of 500-4000, at least one imide ring-forming component selected from tribasic and tetrabasic carboxylic acids and their anhydrides and, optionally, at least one 2-10C diamine in an amount of at most 0.7 mol per mol of said polymeric glycol are mixed together in such amounts that the amount of said polymeric glycol or the total amount of this glycol and said diamine is substantially equimolar to the amount of said imide ring-forming component; the resulting mixture is heated to perform simultaneously the esteritication reaction and the polymerization of caprolactam and further reacted at 150-3000 deg.C while the water content in the polymer formed is kept at 0.1-1wt.%; unreacted caprolactam is distilled off from the system; and the mixture is optionally post-polymerized at 200-300 deg.C.