baber/WOPTO huggingface dataset:
Patent JP-H03201215-A (JP)
Title: Magnetic recording medium and method of magnetic recording and reproducing
Inventor: NAKAMURA AKIO
IPC: G11B5/66
Filed: 1989-12-27
Abstract: PURPOSE:To obtain a magnetic recording medium having high recording track density and line recording density by providing an optical recording layer on a substrate and further providing a magnetic recording layer on this optical recording layer. CONSTITUTION:An optical recording layer 3 is provided between a substrate 2 and a magnetic recording layer 4. Usually, the optical recording layer 3 is used for recording information such as servo information and address information except for data information, and these informations are optically read out. Therefore, it is not required to use a part of the data recording area in the magnetic recording layer 4 for recording servo information or address information, which realizes a larger recording capacity. Since the data area and servo area are provided on the same surface of the medium, positioning with high accuracy becomes possible. Thereby, the obtd. medium has high track density and high line density due to small spacing loss.
Patent JP-2000162487-A (JP)
Title: Zoom lens device
Inventor: OSAWA SADAMITSU
IPC: G02B7/04
Filed: 1998-11-30
Abstract: PROBLEM TO BE SOLVED: To reduce fitting parts to precisely move lens groups, in a zoom lens for advancing and retreating at least two lens groups to vary the power. SOLUTION: A first moving frame 11 with a first lens group 14 held outside a fixed tube 12 is helicoid-connected to reduce the total fitting part. A second moving frame 13 with a second lens group 15 held is built inside the fixed tube 12. A cam pin 13a provided in the second moving frame 13 is engaged with a cam groove 11c formed in an inner circumferential face of the first moving frame 11 via a straight advancing guide opening 12b formed in the fixed tube 12. The first lens group 14 is moved in an optical axis direction according to the lead of a helicoid together with the first moving frame 11 by turning the first moving frame 11. The second lens group 15 is moved in its optical direction by a displacement amount in which a displacement along an optical axis direction of the first moving frame 11 is combined with a displacement along an optical axis direction of a cam groove 11a.
Patent JP-H06157626-A (JP)
Title: Cationically polymerizable and curable composition
Inventor: KAWAMOTO KEIJI
IPC: C08G59/40
Filed: 1992-11-26
Abstract: PURPOSE:To obtain a polymerizable and curable compsn. having improved adhesiveness, abrasion resistance. insulating properties, etc., by compounding a cationically polymerizable compd. with a specific sulfur compd. CONSTITUTION:A sulfonimide is reacted with N-bromosuccinimide or chlorine gas in a molar ratio of the former to the latter of (10:1) to (1:10) at -30 to 10 deg.C for 5min to 5hr to give a chlorine adduct, which is reacted with a sec. amine in a molar ratio of the adduct to the amine of (10:1) to (1:50) at -20 to 50 deg.C for 1-40hr to give a sulfur compd. of the formula [wherein R<1>, R<2>, and R<3> are each 1-30C (halogenated)alkyl, (halogenated)aryl, arylsulfonyl, aralkyl, alkenyl, cyclo(alkyl)alkyl, arylcycloalkyl, alkylene, arylene, or (oxa)aralkylene; X is 0 or S; and (m), (n), and (p) are each 0 or 1]. The objective compsn. is obtd. by compounding 100 pts.wt. cationically polymerizable compd. with 0.001-50 pts.wt. the sulfur compd.
Patent JP-H03198935-A (JP)
Title: Forming machine for automotive wheel disk
Inventor: HATSUKAWA OSAMU
IPC: B21D19/08
Filed: 1989-12-27
Abstract: PURPOSE:To heat and hold a die at a specified temperature and to adjust the outer diameter of a drawn part by flowing circulating liquid passing a heat exchanger through an annular flowing groove opening to plural recessed places formed respectively on a punch and a die ring to those recessed places. CONSTITUTION:A disk for the automobile wheel is drawn by a drawing die assembly 1 composed of a punch 4 arranged on an upper die base 2 through a punch liner 3, a die ring 7 arranged on a lower die base 6 through a liner 8 and a knockout 9. In this case, plural recessed places 10, 16 are formed respectively on the surfaces through which the punch 4 and the die ring 7 come in contact with the punch liner 3 and the die liner 8, the annular flowing grooves 11, 17 communicating them are provided and, further, through holes 14, 15, 20, 22 to communicate them are provided. The circulating liquid of a prescribed temperature passing through the heat exchanger (not shown in figure) is flowed in these recessed places 10, 16 through them and heated and held respectively at prescribed temperatures so that the outer diameter of the punch 4 and the inner diameter of the die ring 7 take required dimensions to obtain a disk stable in quality.
Patent JP-2001154074-A (JP)
Title: Device for making optical fiber tape
Inventor: HIRAYAMA MAMORU
IPC: G02B6/44
Filed: 1999-11-30
Abstract: PROBLEM TO BE SOLVED: To make short-sized optical fibers into tapes. SOLUTION: Individual optical fibers are aligned in a fiber aligning section 10 and are sent to a resin-coating application section 20, where the optical fibers are coated with a UV-curing resin. The coated and aligned optical fibers are sent to a resin-curing section 30, where the optical fibers are irradiated with UV rays to cure the resin. The ends of the optical fibers are kept fixed, are placed on a moving table 43 and are moved integrally in the fiber aligning section 10, the resin coating application section 20 and the resin curing section 30, by which the optical fibers are continuously subjected to a treatment to making it into tape.
Patent JP-H07161253-A (JP)
Title: Electric contact material and its manufacture
Inventor: NAGAI HIROSHI
IPC: C22C1/05
Filed: 1993-12-08
Abstract: PURPOSE:To eliminate also a toxic characteristic and further to simplify the process of manufacture while providing excellence in various contact characteristics. CONSTITUTION:This electric contact material is constituted of a silver matrix and a zinc oxide and tin oxide respectively dispersed as an independent granule in this matrix. A method of manufacturing this electric contact material is constituted by reducing a silver ion while respectively dispersing the granule of zinc oxide and tin oxide in a water solution containing the silver ion and by uniformly dispersing each granule in the silver matrix.
Patent JP-2000157061-A (JP)
Title: Bottom member for flowerpot
Inventor: TOYOSAWA MANABU
IPC: A01M29/00
Filed: 1998-11-30
Abstract: PROBLEM TO BE SOLVED: To provide an inexpensive bottom member for a flowerpot attachable to plural kinds of flowerpots. SOLUTION: This bottom member is equipped with a synthetic resin plate 1 provided with a drip hole 2 coincident with the drainage hole of a flowerpot and a copper net material 3 fixed in a state to cover the drip hole. The peripheral part of the drip hole on the bottom of the plate is furnished with step parts 2a1, 2a2 and 2a3 of plural steps in a coaxial circle with the drip hole, capable of being engaged with drainage holes of plural kinds of flowerpots. At least one set of projected piece parts 3b are installed on the edge part of the net material and engaging parts 5c to be engaged with the projected piece parts are arranged in the vicinity of the drip hole.
Patent JP-H06182777-A (JP)
Title: High-frequency heating method
Inventor: OKAMURA NOBUYUKI
IPC: B29K21/00
Filed: 1992-12-21
Abstract: PURPOSE:To raise the temperature of the whole area of a material to be heated, to a prescribed temperature, by a method wherein an output power of high frequency, time of irradiation and time of stop of irradiation are determined in accordance with the amount of deviation of a measured internal temperature of the material from a temperature set beforehand. CONSTITUTION:A material 1 to be heated is composed of different compositions 1-1 and 1-2. A high-frequency generation control circuit 6 applies a prescribed high-frequency power to the material 1 for a prescribed time through a high-frequency application device 7, so as to heat the material. When the application is ended, CPU 5 delivers a signal to a drive circuit and thereby sensors 2-1 and 2-2 are inserted into the material until they reach prescribed positions inside the material. A temperature measuring circuit 4 receiving signals from the sensors 2-l and 2-2 sends them to the CPU 5. After the CPU 5 determines the conditions of irradiation, the drive circuit 3 extracts the sensors from the material 1. The CPU 5 determines an output power of high frequency, time of irradiation and time of stop of irradiation being subsequent, in accordance with the amount of deviation from a reference temperature set beforehand, and delivers them to the high-frequency generation control circuit.
Patent JP-H07156545-A (JP)
Title: Thermal recording material
Inventor: MORITA MITSUNOBU
IPC: B41M5/337
Filed: 1993-12-09
Abstract: PURPOSE:To enhance the lightfastness of a developed color image and a background by adding at least one or more kind of a compd. represented by a predetermined formula to a thermal recording layer as an ultraviolet absorber. CONSTITUTION:A compd. represented by formula I [wherein G is glycerine, S is sugar or sugar alcohol (hereinbelow referred to as sugar), U is a group capable of forming a bond between glycerine G and U and n is an integer of 1 or more] is added to a thermal recording layer based on a leuco dye and a coupler developing a color at the time of the contact with the leuco dye as an ultraviolet absorber. For example, as the ultraviolet absorber U, 4- hydroxybenzophenone is used and, as glycerine G, epichlorohydrin is used and, as sugar S, maltitol is used and a product 1-(4-benzoylphenyl) glycerol maltitol ether reacted under an alkaline condition is used. As the coupler, for examaple, a compd. having one phenolic hydroxyl group is used.
Patent JP-H08177839-A (JP)
Title: Loosening preventive screw
Inventor: SAKAMOTO HIROYUKI
IPC: F16B33/02
Filed: 1994-12-22
Abstract: PURPOSE: To provide a loosening preventive screw in which the loosening of a screw is prevented and at the same time screw-in torque is reduced. CONSTITUTION: In a loosening preventive screw which comprises a screw part with a spiral thread 2 molded and a head part integratedly molded with the screw part, a height H caught in the thread 2 and the width (m) of the top of the thread are molded in a dimension according to a usual standard thread and at the sane time the thread 2 having the shape in which a pressure side flank angle a is smaller than the flank angle of an internal thread and a clearance flank angle β is larger than the flank angle of the internal thread is molded. Accordingly, a gap part is generated between the flanks of the internal thread and the deformation component is absorbed thereby, so that screw-in torque at the time of screwing in may be reduced.  The top side of pressure side flank and the valley bottom side of the clearance flank are respectively brought into contact with the flank of the internal thread, so that the loosening after fastened may be prevented.
Patent JP-H07159697-A (JP)
Title: Microscopic objective lens
Inventor: NAGAOKA TOSHIYUKI
IPC: G02B21/02
Filed: 1993-12-10
Abstract: PURPOSE:To provide a microscopic objective lens which is as bright as >=0.2 in NA, is as small in the number of lens elements as about three elements and is capable of well correcting aberrations by having one element of specific radial type distributed index lens in a lens system. CONSTITUTION:This microscopic objective lens has one element of the radial type distributed index lens (third lens) having a refractive index distribution in a radial direction from the optical axis expressed by equation I in the lens system. The distributed index lens satisfies the conditions of equation II. In the equations I, II, r denotes the distance in a radial direction from the optical axis, N(r) denotes the refractive index at the point of the radius r, N00 denotes the refractive index on the optical axis, N10, N20... respectively denote quadratic, four dimensional ... coeffts., V00, V10 denote the dispersion of the radial type distributed index lens and are expressed by V00=(N00d-1)/(N00F-N00C), V10= N10d/(N10Fd-N10C). Where, N00d, N00F, N00C respectively denote the refractive indices on the optical axis to d line, F line and C line, N10d, N10F, N10C respectively denote refractive index distribution index coefft. N10 to the d line, F line and C line.
Patent JP-H09178018-A (JP)
Title: Screw-in fixing valve
Inventor: EJIRI TAKASHI
IPC: F17C13/04
Filed: 1995-12-27
Abstract: PROBLEM TO BE SOLVED: To freely attach/detach a bag-like wrench from the axial direction of a screw part and to continuously rotate the wrench so as to improve workability by setting a space between a pair of parallel flat surface parts in the bolt section part of a hood larger than the maximum diameter of a cylinder. SOLUTION: A screw-in fixing valve 20 is provided with a hood 21 and a cylinder 22 for always pressing a valve body 17 to a thin metal sheet 16 and releasing the pressing force of the valve body 17 to the thin metal sheet 16 side. A space between the pair of parallel flat surface parts 35a of a bolt section part 35 for engaging the female screw part 33 of the hood 21 with a male screw part 14 is set larger than the maximum diameter (d) of the cylinder 22. That is, the maximum diameter (d) of the cylinder 22 is fitted within the inner circular diameter D of the polygonal bolt section part 35. Thus, a bag-like wrench is attached/detached from the axial direction of the screw parts 33 and 14, the wrench is continuously rotated and workability is improved.
Patent JP-H03202273-A (JP)
Title: Polishing fabric processing tool
Inventor: KITA YASUYUKI
IPC: B24B53/017
Filed: 1989-12-28
Abstract: PURPOSE:To restrain abrasive particles from dropping from a plate by arranging several ceramic pellets on the outer surface of the plate so as to retain the heights of the pellets within a range of less than 20mum. CONSTITUTION:Ceramic pellets 13 attached to the outer surface of a plate 12 have polishing surfaces with surface-roughnesses in a range of 10 to 80mum. Further, the heights of the ceramic pellets 13 attached to the outer surface of the plate 12 are set within a range of less than 20mum in order to prevent a polishing fabric from being damaged. With this arrangement, it is possible to restrain abrasive particles from dropping from the plate, thereby it is possible to prevent a surface to be polished of a semiconductor water from being damaged.
Patent JP-H11172303-A (JP)
Title: Production of composition for metal injection molding, and metal injection molding method
Inventor: SUZUKI KATSUNORI
IPC: C08L5/12
Filed: 1997-12-11
Abstract: PROBLEM TO BE SOLVED: To improve kneading property, to increase the volume ratio of metal powder to a binder, and to obtain a molded body having high sintered density and excellent in mechanical strength by carrying out the kneading of metal powder and an aqueous agar solution based binder at a high temp. in a specific temp. range under pressurized condition. SOLUTION: A binder, consisting of agar and water, and metal powder are kneaded at 100-120 deg.C under the pressurized condition, by which a composition for metal injection molding is prepared. After this composition is injection- molded into a green part, at least water is removed from this green part, followed by sintering. By this procedure, uniform kneading is made possible even if the blending amount of the metal powder is increased and the blending amount of the binder is decreased. The above binder can be prepared by adding agar and also adding, if necessary, a alcohol, water-soluble high polymer, and other additives to warm water heated, e.g. to 90-96 deg.C and sufficiently agitating and mixing them at 100-120 deg.C under pressurization at 1.0-2.0 atm vapor reassure to dissolve them.
Patent JP-H06195925-A (JP)
Title: Case made of synthetic resin
Inventor: ISHIKAWA KO
IPC: G11B23/04
Filed: 1992-12-22
Abstract: PURPOSE:To maintain a vibration attenuation property and rigidity, to intensify the joining force of case members and to prevent drop-out with splashing resins by constituting the one joint surface side of a pair of the case members of a resin layer contg. inorg. fillers in a smaller amt. CONSTITUTION:The assembly of the case 1 is executed by disposing a magnetic tape, etc., to the lower case member 3 and putting the upper case member 2 thereon. The members 2, 3 are molded of the thermoplastic resins consisting of the outer layer A contg. the inorg. fillers at a higher ratio for the outer side and the inside layer B contg. the inorg. fillers at a lower ratio than the content in the outside layer A for the inner side contg. the joint surface 5 side. Surfaces 5 are joined and ribs 7 for welding are melted and solidified by applying ultrasonic vibrations thereto to form an ultrasonically welded part 6. The layer B contg. the inorg. fillers at the lower ratio melts at the time of this welding and, therefore, the adhesion is further intensified. Further, the layer B contains the inorg. fillers in the smaller amt. and, therefore, the resins are less splashed in the ultrasonic vibration. The adhesion of the splashing resins to the tape to cause the drop-out is thus prevented.
Patent JP-2000161751-A (JP)
Title: Ventilation rate controller for household ventilator
Inventor: KURANAGA JIRO
IPC: F24F7/06
Filed: 1998-12-01
Abstract: PROBLEM TO BE SOLVED: To provide a ventilation rate controller which can control the ventilation rate of a household ventilator which drives exhaust fans for bathroom and lavatory by means of one motor to such a moderate ventilation rate in bathroom that the inhabitant of a house does not feel any cold draft while the inhabitant takes a bath in the winter. SOLUTION: An FG pulse number file in which the FG pulse number information at the plurality of dividing points of the loss resistance value P0 corresponding to the ventilation rate Q0 required when a household ventilator is rotated at 100% duty ratio is stored and a duty ratio % file in which the duty ratio % information of the PWM control signals corresponding to FG pulse numbers is stored are respectively filed in a CPU as a standard ventilation rate mode and a batching ventilation rate mode in which cold draft feeling is given. The mode switching between both of the modes is performed by inputting the electric signal generated when a use-of-bathroom detecting means is turned on is inputted to the CPU. A bathroom illuminating switch can be used as the use-of- bathroom detecting means.
Patent JP-H03202246-A (JP)
Title: Vacuum chuck
Inventor: TATENO NORIAKI
IPC: H01L21/68
Filed: 1989-12-29
Abstract: PURPOSE:To prevent the contamination of the surface of a chuck body made of molded and sintered ceramic material for placing a workpiece, and ensure the accurate levelness of the surface by forming a ceramic thin film substantially free from a bore on the aforesaid surface. CONSTITUTION:A vacuum chuck 1 is approximately disc-shaped and the center part thereof has a drilled bore 2 for connection to a vacuum pump or the like. Also, a groove 3 continuous to the bore 2 is formed on the surface of the chuck 1 where a workpiece W such as silicon wafer is placed, The aforesaid vacuum chuck 1 comprises a chuck body 4 and a ceramic thin film 5 formed on the surface where the workpiece W is placed. Also, a fine bore 6 exists in a grain boundary inside the chuck body 4, but the ceramic film 5 has a dense structure substantially free from a bore. According to the aforesaid construction, the surface for placing the workpiece W can be made free from contamination, and the accurate levelness thereof can be obtained. At the same time, deformation due to heat can be restrained.
Patent JP-H03202070-A (JP)
Title: Cap of flexible tube
Inventor: KUBOTA SHINJI
IPC: A61M1/22
Filed: 1989-12-28
Abstract: PURPOSE:To process the hollow part of the flexible tube in an installed state and to prevent it from falling off by forming small the outside diameter of the installing part extending from the closed part side of a cap body to the opening part side, and forming a fall-off stopping part in the installing part of the opening part side of the cap body. CONSTITUTION:When a cap 1 is installed in a medical treatment-flexible tube 12, the diameter of the tip part of the tube 12 enlarges in accordance with a tapered part 10. In that case, a projecting wire for connecting a projecting portion 3 of the inside surface side wall and a projecting portion 7 of the installing part 5 is formed, therefore, the tip opening part of the tube 12 is not closed up by a bottom part of a cap body 2. Also, the tube 12 adheres closely to a flat part 11 by a face contact, and pressed to the outside by an elastic projecting piece 9, therefore, it can be prevented that the cap 1 falls off. In the case of executing a sterilization processing, ethylene oxide gas flows into a hollow part of the tube 12 through recessed grooves 4, 8 which function as communicating parts from an opening part of the cap body 2, therefore, in a state that the cap 1 is installed, the flexible tube 12 can be sterilized.
Patent JP-2001160604-A (JP)
Title: Semiconductor device
Inventor: KOIZUMI TSUTOMU
IPC: H01L23/28
Filed: 1999-12-02
Abstract: PROBLEM TO BE SOLVED: To prevent a sealing resin from deteriorating in strength due to marking. SOLUTION: In a semiconductor device in which a semiconductor element 1 and wires 6 are sealed up with sealing resin 7, marks 8 are imprinted on the surface of the sealing resin 7 avoiding its parts located over the semiconductor element 1 and the apexes of wiring loops 6.
Patent JP-H05248410-A (JP)
Title: Rodless cylinder device
Inventor: MATSUKI YUJI
IPC: F15B15/28
Filed: 1992-12-01
Abstract: PURPOSE:To position a piston and stop a piston arbitrarily by providing rods for receiving load of a table, and supplying fluid pressure in a cylinder tube to a hydraulic brake means through a fluid pressure passage in a piston and a piston yoke. CONSTITUTION:A table 6a is connected to a piston through a piston yoke, and moved together with the piston by fluid pressure. Rods 22,23 are fixed to a cylinder tube in such a manner that the axial direction thereof is parallel to the moving direction of the table 6a, and a sensor means 25 and a brake means 24 are provided to move along the rods 22,23. The sensor means 25 detects the current position of the piston, and the brake means 24 produces the frictional force between the rods 22,23 by fluid pressure and applies braking force to the piston. The rods 22,23 are disposed in such a manner as to receive the load of the table 6a to function as beams for receiving the load of the table 6a. Accordingly, the load characteristic can be improved, and the piston can be positioned and stopped in an arbitrary position correctly.
Patent JP-2001159732-A (JP)
Title: Super wide angle lens and photographic device having the lens
Inventor: SATO HARUO
IPC: G02B13/04
Filed: 1999-12-02
Abstract: PROBLEM TO BE SOLVED: To provide a large aperture diameter super wide angle lens which exceeds covering angle 2ω=115 deg. in an ordinary projection equation (y=f.tanθ), has an aperture diameter of about F2.8, is small in size and high in performance and is little in close distance aberration fluctuation. SOLUTION: This photographic device has, successively from an object side, a divergent lens group Gn having negative refracting power and a convergent Gp lens group having positive refracting power as a whole. The divergent lens group Gn has at least one element of aspherical concave lens. The aspherical lens satisfies prescribed conditions.