baber/WOPTO huggingface dataset:
Patent JP-H10116102-A (JP)
Title: Control constant calculating method
Inventor: SUGIHARA YOSHIRO
IPC: G05B11/36
Filed: 1996-10-09
Abstract: PROBLEM TO BE SOLVED: To calculate a proper proportional plus integral plus derivative(PID) constant and shorten the tuning time of a control system by finding a measurement period and a process gain and calculating a control constant according to a specific adjustment rule. SOLUTION: For a control system which measure a value at measurement intervals much longer than the variation speed of a controlled variable from a controlled system and controls the controlled system, at least the measured value τ and the process gain K of the controlled system are found and a control constant which controls the controlled system according to a next adjustment rule is calculated. Namely, when the values of functions f(K) and g(τ) are denoted as α and β, a preferable PID constant is obtained by setting a proportional constant (Kp)=a for proportional (P) control, a proportional constant (Kp)=0.9α and an integral constant (Ti)=3.33β for proportional plus integral (PI) control, and a proportional constant (Kp)=1.2α, an integral constant (Ti)=2β, and a differential constant (Td)=0.5β for proportional plus integral plus derivative (PID) control.
Patent JP-H09129187-A (JP)
Title: Excimer light emitting tube
Inventor: TOMIMATSU NORIYUKI
IPC: H01J65/00
Filed: 1995-11-02
Abstract: PROBLEM TO BE SOLVED: To provide an excimer light emitting tube in which dispersion among the tubes and the dispersion of characteristics is small in discharge start and discharge termination voltage characteristics by coating with a dielectric substance the surfaces of first and second electrodes provided inside of fluorescent lamp. SOLUTION: Internal electrodes 3 are inserted into the inside of a glass bulb 2, the vessel of a display fluorescent lamp, from the low end front of the glass bulb 2, and an external electrode 4 is provided on the peripheral face of te glass bulb 2. Glass coatings 15 as dielectrics are applied to the whole surfaces of the internal electrodes 3, and the low ends of the glass coatings 15 are connected to the glass bulb 2. In the case in which two internal electrodes 3 are arranged in the glass bulb 2, and one is set to work as an external electrode, dielectric 18 are provided on the first and the second internal electrodes. Thereby, the waterproofing and the insulating of the electrode 4 are facilitated. Also it is possible to obtain an effect increasing a light amount.
Patent JP-H09127389-A (JP)
Title: Method for assembling optical fiber array
Inventor: ENOMOTO AKIO
IPC: G02B7/00
Filed: 1995-11-02
Abstract: PROBLEM TO BE SOLVED: To arrange optical fibers in an optical fiber array at narrow intervals and rotate and adjust their polarization maintaining planes. SOLUTION: The optical fibers are arranged in the optical fiber array at the narrow intervals by making use of optical fiber guide grooves 3, and the polarization plane maintaining optical fibers 15 are sandwiched between an upper clamp plate 35 and a lower clamp plate 15 by using the jig consisting of the opposite upper clump plate 35 and lower clamp plate, which are slid by the same distance in the mutually opposite directions at right angles to the length of the polarization plate maintaining optical fibers 15 to set the polarization maintaining planes of the polarization plate maintaining optical fibers 15 at a specific angle.
Patent JP-H05128419-A (JP)
Title: Magnetic head and production thereof
Inventor: OKAJI SEIJI
IPC: G11B5/147
Filed: 1991-10-31
Abstract: PURPOSE:To prevent an increase in the length of a magnetic path formed of laminated layers while preventing this magnetic path from being shut off by the winding window of a C core. CONSTITUTION:This magnetic head is constituted by inserting the laminated layers 3 alternately laminated with magnetic metallic films 1 having a high saturation magnetic flux density and insulating thin films 2 with nonmagnetic material plates 4, 5 from both sides to constitute the C-shaped core 8 and joining and integrating such core and an I-shaped core 9. The laminated layers 3 alternately laminated with the above-mentioned magnetic metallic films 1 and the insulating thin films 2 are formed on the inside end face 27 of the winding window 16 formed on the joint surface 10 of the C-shaped core 8 with the I- shaped core 9.
Patent JP-H10108886-A (JP)
Title: Bubble producing bathtub
Inventor: FUKUMOTO NOBORU
IPC: A47K3/00
Filed: 1996-10-07
Abstract: PROBLEM TO BE SOLVED: To eliminate water pipe plumbing and prevent water from leaking by employing a main part of a bathtub having a gradient widening from the bottom upward, and an outer tank of the bathtub having a recess portion to form a water pipe between the outer tank and the main part of the bathtub when the outer tank is brought into tight contact with the main part of the bathtub. SOLUTION: A main part 1 of a bathtub formed with a metallic or resin material has a gradient on its sidewall 1a widening from its bottom upward. The sidewall 1a is provided with a hot eater intake port, and the bottom 1b with a hot water drain port. An outer tank 2 of the bathtub has a side wall having a gradient widening from its bottom upward so that it covers the main part 1 of the bathtub, with the side wall having a recess portion 3 to form a water pipe between itself and the main part 1. After applying adhesive to the inside surface of the outer tank 2, the main part 1 is fitted into the outer tank 2 to make up a bubble producing bathtub.  Since the main part 1 and the outer tank 2 of the bathtub have a gradient, they are joined together securely without the possibility of water leaking from any part of the water pipe formed between the main part 1 and the outer tank 2 even over extended periods of use.
Patent JP-H03147395-A (JP)
Title: Molded form for electric device
Inventor: KAJI NORIKIMI
IPC: H05K5/02
Filed: 1989-11-01
Abstract: PURPOSE:To absorb organic gas and to prevent influence of the gas to a contact by molding a molding material mixed with active charcoal, and forming a molded form for forming a part of an electric device. CONSTITUTION:A molding material contains synthetic resin such as PPS resin, PBT resin, nylon, etc., as a main ingredient, is mixed with glass fiber or other filler as a reinforcing material and colorant, and further mixed with active charcoal powder. About 10wt.% of the charcoal is mixed to sufficiently obtain absorbing effect of organic gas with the charcoal. The thus prepared material is injection-molded, etc., to form a molded form A for forming an electric device such as a relay, a switch, etc.
Patent JP-H09127245-A (JP)
Title: Ultrasonic detection apparatus carried on vehicle
Inventor: SASAKI HAJIME
IPC: G01S15/10
Filed: 1995-11-02
Abstract: PROBLEM TO BE SOLVED: To obtain an ultrasonic detection apparatus in which the probability of a malfunction due to a whining sound is reduced even when a vehicle speed signal is not connected. SOLUTION: A computing and control part judges whether reflected waves S are received or not in a previous transmission when a noise NS exists in the period of a noise monitoring gate N, and it sets the noise monitoring gate N when the reflected waves S are not received. In addition, when the reflected waves S are received, a display part judges whether a warning is already displayed or not, it sets a noise monitoring gate K when it is displayed, it clears a reception number-of-times value up to that time when the number of times of the receptions of the reflected waves is less than three, i.e., before its display, and it sets the noise monitoring gate N after the time has been adjusted.  That is to say, when the noise NS exists inside the noise monitoring gate N, the reception number-of-times value of the reflected waves S is cleared, and the reflected waves S are counted again from the beginning.
Patent JP-H05118550-A (JP)
Title: Heat-cooking apparatus
Inventor: KISHIMOTO KIYOSHI
IPC: F24C1/00
Filed: 1991-10-31
Abstract: PURPOSE:To prevent strain at welded portions due to the thermal expansion of heating tubes and enhance the thermal efficiency by forming the heating tubes in a substantially L-shaped state and disposing the heating tube at the inner part and ceiling-plane part of a cooking chamber, respectively. CONSTITUTION:In the case where steam heating is performed by operating a fan 5 for air circulation and a fan 17 for air feed while carrying out combustion by a gas burner 15, a steam shut-off valve 22 is opened and steam is fed into a cooking chamber 4 through an outlet port 21. Hot air produced by combustion of the gas burner 15 is fed into heating tubes 11 to heat the same. Further, a material to be cooked is heated by radiant heat generated from the surfaces of longer sides of the heating tubes 11 and, simultaneously, air is circulated on the surface of the heating tubes 11 by the fan 5 for air circulation, whereby hot air thus obtained also heats uniformly the material to be cooked. By this method, the thermal efficiency is enhanced. Further, since the heating tubes are formed in a substantially L-shaped bend, the thermal expansion of the heating tubes 11 is absorbed by expansion toward the direction of the bent portion, whereby strain which occurs to the welded portions at one end 7 and the other end 9 of each heating tube 11 is prevented.
Patent JP-H11124631-A (JP)
Title: Manufacture of resistance welded steel tube excellent in formability and having high ductility
Inventor: SAKAMOTO SHINYA
IPC: C22C38/00
Filed: 1997-10-20
Abstract: PROBLEM TO BE SOLVED: To provide the method for manufacturing a resistance welded steel tube excellent in formability and having high ductility by means of specific heat treatment. SOLUTION: A steel strip, having a composition consisting of, by weight, 0.05-0.25% C, <=0.6% Si, 0.20-2.00% Mn, 0.005-0.050% Al, <=0.0030% N, and the balance Fe with inevitable impurities, is formed into tubular shape. The edge of the resultant tubular steel strip is subjected to high frequency welding to form a tube stock. After the welding, the tube stock is heated and held at ferrite + austenite two-phase region heating temp. (transformation temps. Ac1 to Ac3 ) for <=30 min and then cooled at (5 to 30) deg.C/sec cooling rate.
Patent JP-H04158712-A (JP)
Title: Rear discharge type riding lawn mower
Inventor: SAKI MITSUO
IPC: A01D34/68
Filed: 1990-10-24
Abstract: PURPOSE:To improve the lawn-finishing property and mowed grass--discharging property of the subject mower and permit the reduction in the size thereof by specifying the rotation directions of two cutter blades disposed parallelly and the position of a belt pulley device. CONSTITUTION:Cutter blades on the right and left sides in the traveling direction are rotated clockwise and counterclockwise, respectively, to surely mow lawn grass, and the mowed grass is discharged rearward through the swollen parts 17, 17' of grass discharge passages disposed on the upper wall of a cutter housing 10. A belt pulley device 40 is disposed between the right and left swollen parts 17, 17' to prevent the unnecessary increase in the height of the vehicle.
Patent JP-H01127885-A (JP)
Title: Method of drying wood such as coigue
Inventor: MINOURA MASAHIRO
IPC: F26B7/00
Filed: 1987-11-13
Abstract: PURPOSE: To dry up wood, e.g. Coigue, easily in a short time without causing and damage, e.g. a recess, by naturally drying up the wood after it is frozen until a specified moisture content is attained and then drying it up under specified conditions while reducing the pressure or drying it up with hot air. CONSTITUTION: A wood, e.g. Coigue, is frozen at first and then dried up naturally until the moisture content drops down to 25-45%. Subsequently, it is subjected to pressure reduction dry up under conditions of 40-70 deg.C and 50-150 mmHg or hot air dry up under conditions of 45-70 deg.C dry bulb temperature and 3-40 deg.C wet bulb temperature. Natural dry up is preferably continued until the moisture content drops down to 25-35%. Moisture content of frozen Coigue produced in Chile can normally be reduced to about 30% by natural dry up of 90-120 days. Pressure reduction dry up is preferably carried out under conditions of 45-65 deg.C and 60-150 mmHg and continued until the moisture content drops down to a target level, i.e., 8-12% in case of Coigue produced in Chile.
Patent JP-H07142000-A (JP)
Title: Cathode-ray tube
Inventor: MISONO MASAYOSHI
IPC: H01J29/50
Filed: 1993-11-16
Abstract: PURPOSE:To improve a focus characteristic and resolution and also restrain moire generation in a small-current region by providing an opening having a required diameter on the anode side bottom part of the cylindrical electrode part for fitting the positioning member of an electron gun using plural electron beams in an in-line arrangement. CONSTITUTION:A coaxial cylindrical electrode 97 which is connected to an anode electrode 96 forming a main lens by including an internal electrode 96-1 opposite to a focusing electrode 95 is provided. An opening 97-1' having nearly the same diameter as that of the fluorescent screen side of the electrode 96 is provided on a bottom part 97-1 on the electrode 96 side of this electrode 97, and electric field strength distributed in a fluorescent screen direction from the main lens facing part of an anode is weakened to spherical aberration to actually make the main lens be of a large diameter, increasing a focus characteristic. Moreover, shortening the tube axis direction length of the anode electrode and providing a passing opening for focus control can improve resolution to restrain moire generation in a small-current region.
Patent JP-H07137459-A (JP)
Title: Reversible thermal recording material
Inventor: OZAWA KAZUHIRO
IPC: B41J2/32
Filed: 1993-11-16
Abstract: PURPOSE:To provide a reversible thermal recording material capable of applying sufficient adhesiveness to a aluminum vapor deposition film and a reversible thermal recording layer without exerting adverse effect on thermal recording sensitivity or electromagnetic conversion characteristics. CONSTITUTION:A transparent intermediate layer 5 containing two or more kinds of copolymer resins based on an acrylic resin and a resin matrix is provided between a light reflecting layer 4 and a reversible thermal recording layer 6.
Patent JP-H06117401-A (JP)
Title: Operating fluid tank
Inventor: TAMANE ATSUSHI
IPC: F15B1/26
Filed: 1992-10-02
Abstract: PURPOSE:To suppress variation in the level in a tank body to the possible minimum extant. CONSTITUTION:An oil restraining plate 20, obtained by forming a plate body of a specified width in a frame shape, is fixed to the interior wall surface of four peripheries of a tank body 11a by means of welding or the like in plural number of stages in suck a manner that the plate surface may be parallel to the fluid level. When the return oil flows into the tank body 11a through a return oil induction inlet 15, its flow is braked due to its contact with the oil restraining plate 20 whereby tropping of air is restrained to the minimum and agitation of operating fluid is also restrained to the minimum. Air bubbles floating in the operating fluid come in contact with the oil restraining plate 20, caught and removed. Furthermore, even if the operating oil tank 11 is tilted, the operating oil sticks to the oil restraining plate 20 because the operating oil has a certain degree of viscosity and if even the operating fluid tank 11 is oscillated or fluctuated from the tilted state, the oil level may not make any big swing or wave.
Patent JP-2001077425-A (JP)
Title: Light-emitting element
Inventor: SUEHIRO YOSHINOBU
IPC: H01L33/20
Filed: 1999-08-31
Abstract: PROBLEM TO BE SOLVED: To raise external radiation efficiency by allowing a light pick-up surface to be a polygonal protruding shape formed of a plurality of planes with planes forming a light-emitting part or a part of an intermediate surface, where the axial direction is vertical to the center axis of a light-emitting element, while being rounded except for the corner parts. SOLUTION: A semispherical light pick-up surface 1a is a polygonal protruding shape, rounded except for corner parts, comprising a plurality of planes with a plane oriented to a dot-like p-n joint layer 4 in a light-emitting part, or a part of an intermediate surface where the axial direction is vertical to the center axis of the light-emitting element. Since the light pick-up surface 1a is a polygonal protruding shape rounded except for the corner parts, a light- emitting element where the light emitted from a light-emitting part is radiated outside at high efficiency is provided and its manufacture is easy.
Patent JP-H06136448-A (JP)
Title: Production of grain-oriented silicon steel sheet
Inventor: NAGASHIMA TAKEO
IPC: C21D8/12
Filed: 1992-10-26
Abstract: PURPOSE:To provide a grain-oriented silicon steel sheet high in magnetic flux density and extremely low in core loss by obtaining a high magnetic flux density material by finish annealing, simultaneously smoothening (mirror-finishing) the surface of the steel sheet and smoothening the movement of the magnetic domains to obtain ultra-low iron loss. CONSTITUTION:A hot rolled silicon steel strip constituted of 2 to 4.8% Si, 0.08 to 0.05% acid soluble Al and <=0.01% N is cold-rolled, is subjected to decarburization annealing and is thereafter coated with a separation agent for annealing essentially consisting of alumina and contg. a rust preventive. Its temp, is raised to 920 to 1150 deg.C at >=50 deg.C/Hr in a neutral or reducing atmosphere, and it is held to the same temp. for >=5hr. For improving its magnetic flux density, the means of removing an oxidized film formed on the surface of the steel sheet at the time of the decarburization annealing, of executing nitriding by ammonia and strengthening the inhibitor or the like are effective. In this way, the grain-oriented silicon steel sheet having a mirror face and extremely high in magnetic flux density can be obtd. by the process close to the conventional producing method for a grain-oriented silicon steel sheet to obtain the ultra-low iron loss material.
Patent JP-H02133464-A (JP)
Title: Flame-retarding polyphenylene ether resin composition
Inventor: YANAGASE AKIRA
IPC: C08L25/06
Filed: 1988-11-14
Abstract: PURPOSE:To obtain a resin composition excellent in flame retardancy, impact resistance and thermal aging resistance by mixing a polyphenylene ether resin with an aromatic alkenyl resin, a modified polyorganosiloxane polymer, a phosphoric ester compound and particulate silicic acid. CONSTITUTION:The title composition is produced by mixing a polyphenylene ether resin [e.g., poly(2,6-dimethyl-1,4-phenylene)ether] with an aromatic alkenyl resin (e.g., PS), a modified polyorganosiloxane polymer of a mean particle diameter of 0.08-0.6mum (e.g., vinyl monomer-grafted polyorganosiloxane rubber), a phosphoric ester (e.g., triphenyl phosphate) and particulate silicic acid. This composition is excellent in flame retardancy, impact resistance and thermal aging resistance.
Patent JP-H07116538-A (JP)
Title: Granulator
Inventor: KOBAYASHI HIROMASA
IPC: B29B17/00
Filed: 1993-10-22
Abstract: PURPOSE:To surely granulate a material by a simple structure without generating fine powder by providing a granulator with a cutting die which has a cutting blade for finely cutting the material on the lower surface and is vertically moved and a shutter plate on which the material is mounted and which receives the cutting die and is horizontally moved. CONSTITUTION:When a spool runner 1 is taken out by a take-out robot and thrown in a hopper 2 and a delay timer is permitted time-out, a cutting die 10 is lowered together with a press arm 12 to cut the spool runner 1 on a shutter plate 4 by a cutting blade on the lower surface of the cutting die 10. At this time, since a unit area per pitch of the cutting edges of the cutting blade is larger than the diameter of the spool runner 1, the finely cut and granulated spool runner gets in between the cutting edges. Next, the press arm 12 is raised and the cutting mold 10 is raised, integrated into the arm, and leaves the shutter plate 4. When the shutter plate 4 is moved to the left, the finely cut spool runner 1 falls into a tank 17.
Patent JP-H03150719-A (JP)
Title: Magnetic recording medium
Inventor: KONDO HIROFUMI
IPC: G11B5/72
Filed: 1989-11-06
Abstract: PURPOSE:To improve the corrosion resistance of a magnetic layer by deposition a condensed ring compd. having a hydroxyl group and a condensed ring compd. having a nitro group or amino group in combination on a ferromagnetic metallic thin film which is the magnetic layer. CONSTITUTION:The ferromagnetic metallic thin film is formed on a nonmagnetic base and the condensed ring compd. having the hydroxyl group and the condensed ring compd. having the nitro group or amino group are deposited in combination as a rust preventive agent on this ferromagnetic metallic thin film. Various means, such as a method of mixing and diluting the condensed ring compd. having the hydroxyl group and the condensed ring compd. having the nitro group or amino group with and into a suitable solvent and applying the soln. on the surface of the ferromagnetic metallic thin film or a method of applying the vapor mixture composed of the two compds. onto the surface of the ferromagnetic metallic thin film are usable as the method of depositing the above-mentioned two compds. in combination on the ferromagnetic metallic thin film. The excellent corrosion resistance is exhibited in this way not only at and under a high temp. and high humidity but in environment contg. corrosion resistant gases as well.
Patent JP-H05129714-A (JP)
Title: Semiconductor device
Inventor: KONO TOSHIHIRO
IPC: H01S5/00
Filed: 1991-11-01
Abstract: PURPOSE:To provide a laser element, having low threshold value and high efficiency, in a buried structure semiconductor laser. CONSTITUTION:In the structure in which the side face of mesa stripes are buried by a current block layer after the mesa stripes have been formed by making a multilayer structure including an active layer 3 on a semiconductor substrate 1, a current block structure is formed by alternately burying a Ti- doped layer 5 and an Fe-doped layer 6 or alternately burying an n-type semiconductor layer and an Fe-doped layer 6. As a result, the injection of electrons and holes into the part other than an active region can be prevented effectively, and a reactive current can be decreased. Hence a device of low threshold value and high efficiency can be manufactured.
Patent JP-H06134062-A (JP)
Title: Passage for golf training ball
Inventor: TATEISHI DOSUKE
IPC: A63B69/36
Filed: 1992-10-26
Abstract: PURPOSE:To provide a passage for a golf training ball which can decrease the amount of dust, etc., to be conveyed together with the ball to a ball housing chamber like a ball dispenser by air flow. CONSTITUTION:As a passage for golf training ball, a branched part 8 branched into an air flow passage 8a provided along the stream line direction where air flows and a ball passage 8b provided along the direction to intersect this stream line direction is formed on a passage 5 near a ball housing chamber 2a.