baber/WOPTO huggingface dataset:
Patent JP-2001006219-A (JP)
Title: Optical recording medium, substrate for optical recording medium and master disk for production of optical recording medium
Inventor: TAKEMOTO HIROYUKI
IPC: G11B7/24085
Filed: 1999-06-16
Abstract: PROBLEM TO BE SOLVED: To enable an optical recording medium to adequately access desired tracks without the impairment of the reproduction modulation degree of pits by forming grooves formed in a reproduction-only region to a depth shallower than the depth of the grooves formed in a write enable region. SOLUTION: The depth d1 of the grooves 10 formed in the reproduction-only region R is made shallower than the depth d2 of the grooves 20 formed in the write enable region W. As a result, even if a track pitch is made narrower, the reproduction modulation degree may be obtained at a sufficient level and in addition, a tracking error of a sufficient level may be detected. The depth d3 of the pits 12 formed in the reproduction-only region R is previously made deeper than the depth d1 of the grooves 10. Namely, the deep pits 12 are formed between the shallow grooves 10 and information signals are previously recorded by these pits 12 in the reproduction-only region R. Management information, such as, for example, physical addresses of sectors, are recorded as the information relating to the recording tracks in the reproduction-only region R.
Patent JP-H0520824-A (JP)
Title: Magnetic disk apparatus and spacing control method
Inventor: YOSHIDA MEGUMI
IPC: G11B21/21
Filed: 1991-07-11
Abstract: PURPOSE:To provide a high-reliability and high-recording-density magnetic disk apparatus. CONSTITUTION:In order to generate an electrostatic field used to stably levitate a slider 2 over a magnetic disk 2 by means of an electrostatic repulsive force between both, materials whose electric conductivity is high are used for a slider material and a protective film material for the magnetic disk; the slider is shaped in such a way that the side faced with the disk is semispherical. A potential of the same polarity is applied to the slider and the surface of the magnetic disk form an external voltage generator 5. At this time, a mercury contact 4 is installed so as to come into electric contact with the turning magnetic disk. In order to reduce the dynamic pressure, of the air from the turning magnetic disk, which causes the unstable levitation of the slider, an inert gas such as He or the like is filled or a low-pressure atmosphere is formed at the inside of an enclosure for an apparatus.
Patent JP-H068255-A (JP)
Title: Damping rubber
Inventor: CHIBA SHIGEHIRO
IPC: B60K5/12
Filed: 1992-06-29
Abstract: PURPOSE:To eliminate the cause of microcracks by eliminating a room for the generation of a sink in the root of flash by generating flash generated corresponding to the parting part of a mold for molding a damping rubber in the corner part of a rubber part. CONSTITUTION:In damping rubber 1, an inner cylinder 3 is provided in an outer cylinder 2 and both cylinders 3, 2 are bonded by a vulcanized rubber part 4 based on ethylene/propylene rubber. The damping rubber 1 is molded by an upper mold 5 and a lower mold 6 and the lower mold 6 for molding the gap part 8 among the gap parts 7, 8 of the rubber part 4 is flatly formed and the protruding part 13 forming the gap part 8 to the upper mold 5 is provided and flash 12 in a horizontal direction is formed thereto so as to be made to abut on the flat part 14 of the lower mold 6.
Patent JP-H0336277-A (JP)
Title: Atomization thin film forming device
Inventor: IMAI MIZUHO
IPC: H01B13/00
Filed: 1989-06-30
Abstract: PURPOSE:To uniformize a film thickness distribution in the cross-direction of a substrate by providing a shielding member in a film forming chamber and confining a fog passage to the upper part, side part, etc., of the film forming chamber to cause a turbulent flow. CONSTITUTION:The atomization thin film forming device is formed by an atom izer 1, a film forming nozzle 3, the film forming chamber 4 in which the ceiling part 6 covers a conveying route of fog from the discharge charge port 3a of the nozzle, a means 8 for heating the ceiling part 6, etc. The shielding member 13 is provided in the film forming chamber 4, and the fog passage is confined to at least one of the upper part and both side parts of the film forming cham ber 4.
Patent JP-H0724941-A (JP)
Title: Zipped gusseted bag and manufacture thereof
Inventor: KUGE RAIZOU
IPC: B31B29/02
Filed: 1993-07-09
Abstract: PURPOSE:To mount zipper members simply and surely by a method wherein the main body unit of a bag is formed once and, thereafter, opened surfaces, consisting of exposed planes of the bag main body and the inner surfaces of side surfaces of the same respectively, are formed while the male mold members and female mold members of zippers are secured to the opened surfaces respectively. CONSTITUTION:Notches 15, 15, 15, 15 are provided at four corners of respective opening ends of a bag main body 10 having side surfaces 21, 21 provided with inwardly folded folding lines 23, 23 and flat surfaces 11, 11 of fore and rear side of a bag. Next, the folding lines 23 are folded in the reverse folding directions 23a, 23a to the original folding directions. Subsequently, the flat surfaces and a part of the side surfaces are folded outwardly all together to form opened surfaces 11a, 11a, 21a, 21a, then, the male mold members 31 of a zipper 30 and the female mold members 35 of the same are secured to the opened surfaces 11a, 11a so as to form the relation of mirror images with respect to the centerline of the opening of the bag. Thereafter, the whole areas of the upper end of the opening of the bag main body as well as the side surfaces 28b are bonded through fusion bonding, then, tubs 29, 29 are cut down.
Patent JP-H0650801-A (JP)
Title: Measuring device for weight of running vehicle
Inventor: MORITA RYOICHI
IPC: G01G19/03
Filed: 1992-06-29
Abstract: PURPOSE:To facilitate measuring of vehicle weight exactly even in the case a vehicle to be measured passes the measuring stage without stopping by using a stop measurement type track scale. CONSTITUTION:On the strain generation part 41 of a load cell 4, fixed are a strain gauge 5 for detecting the strain generating in the strain generation part 41, converting it to electric signal and outputting, and a piezoelectric sensor 6 for similarly detecting the vibration component due to a shock load generating in the strain generation part 41 during loading on a vehicle, converting it to electric signal and output. And the data output from the strain gauge 5 and the data output from the piezoelectric sensor 6 are accepted after tuning. Also provided is an arithmetic device for subtracting the data value output from the piezoelectric sensor 6 from the data value output from the strain gauge 5 and for measuring the vehicle weight based on the obtained data value.
Patent JP-S6232031-A (JP)
Title: Surface roughened film and sheet made of 4-methyl-1-pentene polymer
Inventor: SHIGEMOTO HIROMI
IPC: B29C48/305
Filed: 1985-08-02
Abstract: PURPOSE:To obtain a surface roughened film and sheet capable of smoothly performing a process for roughening the surface of a resin in molding a single surface metal laminated plate constituting a multilayered PWB, by applying roughening processing of specific roughness to the surface of a resin. CONSTITUTION:A film or sheet is molded from PMP and roughening processing imparting average roughness of 0.5-10mum is applied to the PMP film or sheet to obtain a surface roughened film or sheet. If 0.5mum or less, there if no effect enlarging a surface area and the improvement effect of the adhesive strength of a resin after curing with a prepreg and, if 10mum is exceeded, the adhesive strength of the resin after curing with the PMP film becomes too high and there is possiblility such that the PMP film is ruptured or partially remains on the surface of the cured resin at the time of release. Further, a small amount of a filler such as CaCO3, silica, mica, BaSO4 or talc may be added to PMP used in preparing this film or sheet even if tear strength is not lowered. If this filler is added, unevenness due to the filler is formed to the surface of the film to increase adhesive strength.
Patent JP-S6231791-A (JP)
Inventor: KAWAKAMI HIROTO
IPC: F16L27/02
Filed: 1985-08-02
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S6419238-A (JP)
Title: Room cooling with panel
Inventor: TANAKA TATSUAKI
IPC: F24F1/00
Filed: 1987-07-10
Abstract: PURPOSE:To prevent dew condensation and make it possible to carry out sanitary room cooling by passing the cold water from a refrigerating machine, after passing it through a room cooling device, through the panel piping. CONSTITUTION:The cold water (about 5 deg.C) which comes from a cold water outlet of a refrigerating machine 1 passes through a piping 4 and flows through a coil 5. At this time a fan 7 takes in the air (about 25 deg.C) in the room and discharges the air that is cooled by the coil into the room. Further, at this time the moisture contained in the air becomes water droplets by the condensation on the coil 5 and they are stored in a discharge water pan 8 and discharged out of the room through a drain pipe 9. And, the cold water that has its temperature raised a little in the coil 5 (at about 14 deg.C) passes through the piping 3 in a panel which is buried in the floor and there the water radiates heat to the inside of the room and conducts the heat and at the same time exchanges heat with the convection air in the room and raises its temperature (at about 20 deg.C), and returns to the refrigerating machine 1 from the cold water inlet. At this time the cold water passing through the piping in the panel has temperature that is not very low so that its surface does not develop dew condensation.
Patent JP-H0223276-A (JP)
Title: Oilless type reciprocating gas compressor
Inventor: ISSHIKI NAOJI
IPC: F16J1/01
Filed: 1988-07-09
Abstract: PURPOSE:To decrease incurring of a piston ring friction loss, to improve compression performance, and to reduce the size and the weight of a compressor by a method wherein a gap between the outer size of a piston and the bore of a cylinder and the height of a self-lubricating piston ring are set to values lower than respective specified millimeter unit values. CONSTITUTION:A rider ring body 41 is engaged with a body 31 of a piston 30 with which the main part of a compressor is formed, and a plurality of circumferential grooves 42 are formed in the rider ring body. A self-lubricating resin ring 43 is secured on the outer peripheral surface of the rider ring body 41 to form a self-lubricating rider ring 40. A self-lubricating piston ring 20 is engaged with the circumferential groove 42, and is pressed against an inner wall surface 11 of a cylinder 10 through the force of a linear spring 44. In this constitution, the thickness of the self-lubricating resin ring 43 is regulated, and a gap between the outer size of the piston 30 and the bore of the cylinder 10 is set to a value lower than 1.0mm. The height of the self-lubricating piston ring 20 is set to a value lower than 3.0mm.
Patent JP-H11250990-A (JP)
Title: Electric connector connecting card provided with integrated circuit, and device provided with this type of connector
Inventor: BRICAUD HERVE
IPC: H01R24/62
Filed: 1998-06-18
Abstract: PROBLEM TO BE SOLVED: To provide a structure, which holds a card in its inserted position and prevents it from accidentally coming out, in an electric connector connecting a contact card provided with an integrated circuit. SOLUTION: A card is provided with a notched linear edge part, which serves as an orientating means for deciding the position of the card in a connector, in the vicinity of a front traverse directional edge. In the upper main wall 44 of a housing storing the inserted card, a boss 120 protruded at a level lower than that of the linear edge part and arranged on the inside face 45 is featured as a stopping part protruded in front of the linear edge part of the card when the card is in the inserted position, so that the card is prevented from coming off accidentally from a device 30. The boss 120 is retracted when the card passes through, as the upper main wall 44 is partially and slightly deformed elastically.
Patent JP-H088128-A (JP)
Title: Gas-insulated neutral point reactor device
Inventor: ISHIURA MASAHIRO
IPC: H01F37/00
Filed: 1994-06-20
Abstract: PURPOSE:To reduce the installation space of a gas-insulated neutral point reactor device composed of a gas-insulated switch and gas-insulated neutral point reactor and simplify the gas pressure monitoring and the connection work of the switch to the reactor by simplifying the constitution of the reactor device. CONSTITUTION:A switch having a circuit breaker 6 and grounding unit 7 and a neutral point reactor are designed to insulate them under the same gas pressure condition and housed in the same vessel 15, and this vessel is filled with an insulation gas. Since the switch and grounding unit 7 are housed in the vessel 15, the installation space is reduced and connection work is also simplified. And the gas pressure monitoring is made simple.
Patent JP-H0811256-A (JP)
Title: Autonomously responsive laminate, manufacture thereof and window used thereof
Inventor: WATANABE HARUO
IPC: C08L1/00
Filed: 1994-07-01
Abstract: PURPOSE:To stably obtain both the homogeneous, colorless and transparent state and fully, milky and opaque state in response to temperature change by a method wherein an isotropic water solution is prepared by melting polysaccharides derivative having a specified weight average molecular weight with a specified amount of aqueous medium consisting of a specified amount of water and an amphiphathic substance having the specified molecular weight. CONSTITUTION:An isotropic water solution is prepared by melting 100 pts.wt. of polysaccharide derivatives having the weight average molecular weight of about 10,000-200,000 with about 110-2,000 pts.wt. of an aqueous medium consisting of about 25-450 pts.wt. of water and an amphipathic substance having the molecular weight of less than about 5,000. A cellulose derivative of polysaccharides has especially high stability. By laminating the above-mentioned isotropic water solution between boards, an autonomously responsive laminate, in which the solution starts to cloudily cohere near room temperature and, at the same time, reversibly changes stably and repeatedly, is obtained. The laminate similarly and reversibly changes stably and repeatedly even when the laminate is restored after being frozen at a low temperature.
Patent JP-S6234647-A (JP)
Title: Method for shell mold casting of core for casting
Inventor: SUGIMOTO MASARU
IPC: B22C9/04
Filed: 1985-08-06
Abstract: PURPOSE:To obtain a core for casting having an intricate shape without the deviation in the shape and size and without sand inclusion with a small number of steps by loading the part of the core for casting molded by a shell molding method into a metallic mold for casting and molding and unitizing the remaining parts. CONSTITUTION:Annular sheet parts 2, 2' face each other and project into a body 1 of the core for casting a blank casting material for the body 1 of, for example, bronze screw slice valve. These parts have through-holes smaller in diameter than screw parts 3, 3' for piping. The part 17 of the core for casting molded by the shell molding method is loaded into the prescribed position of the metallic mold for molding to be used for molding the remaining parts 18, 18' of the core and thereafter the parts 18, 18' are molded. More specifically, coated sand for the shell mold is fed into the cavity part of the metallic mold for molding the parts 18, 18' and is penetrated to the fitting parts 19, 19' of the part 17; thereafter, the sand is welded and solidified by the heat of the metallic mold for molding, by which the fitting parts 20, 20' of the parts 18, 18' are united.
Patent JP-S6330691-A (JP)
Inventor: HORII KIYOYUKI
IPC: F16L43/00
Filed: 1986-07-23
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H06342961-A (JP)
Title: Method for passivation of etching mirror facet of semiconductor laser
Inventor: PEETAA REO BUUFUMAN
IPC: H01S5/028
Filed: 1991-06-18
Abstract: PURPOSE: To provide a method for passivation of an etching mirror facet of a semiconductor laser diode for improving the reliability of a device. CONSTITUTION: An etching mirror facet is first processed in a wet-etching process, and a natural oxide and a surface layer which is mechanically damaged during a prior mirror etching process are substantially removed, giving a desired improvement. Then a passivation pretreatment is performed to remove residual surface oxide, and a sub-single layer in which nonradioactive recombination of minority carries in the mirror facet is permanently decreased is formed. Lastly, to avoid the effects of environment on a mirror, a pretreated mirror surface is covered with a passivation layer.
Patent JP-H11354859-A (JP)
Title: Magnetoresistive element and magnetic head
Inventor: YAMANAKA HIDEAKI
IPC: H01F10/32
Filed: 1998-06-05
Abstract: PROBLEM TO BE SOLVED: To make practicable a magnetoresistive element that utilizes the magnetoresistance effect due to ferromagnetic tunnel junction. SOLUTION: In a magnetic conversion element, a ferromagnetic tunnel junction film is formed on a substrate 10, where the ferromagnetic tunnel junction film consists of first and second ferromagnetic layers 11 and 14, an insulation layer 12 sandwiched between the ferromagnetic layers 11 and 14, and non- magnetic metal thin film 13 inserted between the second ferromagnetic layer and the insulation layer. The generation of magnons at the tunnel junction interface between the insulation and ferromagnetic layers is canceled or greatly limited, and the reduction of the magnetoresistance ratio due to the application of a bias voltage is suppressed. Consequently, a magnetic head that is suitable for further increasing recording density is obtained.
Patent JP-H0521954-A (JP)
Title: Manufacture of printed wiring board
Inventor: HYODO KIYOSHI
IPC: H05K3/42
Filed: 1991-07-12
Abstract: PURPOSE:To provide a method for manufacturing a printed wiring board which can prevent copper-plating cutout within a throughhole at the time of formation of a circuit effectively. CONSTITUTION:In this title item, a hole is made in a copper-clad laminate 10, a thin electroless copper plating 16 is executed, an etching resist 18 is formed at a portion of each through-hole 14 which is drilled, a circuit is formed on a surface, the etching resist 18 is removed and then a solder resist 20 is printed, the surface of the thin electroless copper plating 16 is activated by pickling, and then a thick electroless copper plating 22 is performed. Then, the etching resist 18 is formed on the thin electroless copper plating 6 within each through- hole 14 and at a surrounding portion of each through-hole by using a liquid photoresist.
Patent JP-H0336898-A (JP)
Title: Transducer
Inventor: TABUCHI KEIZO
IPC: H04R17/00
Filed: 1989-07-03
Abstract: PURPOSE:To reduce a side lobe with simple constitution by forming an electrode respectively to the center of one entire face and other major face of a piezoelectric ceramic. CONSTITUTION:An electrode 14 is respectively formed to the entire face of both major faces of a ceramic disk 12. Then the electrode 14 is used to polarize the entire ceramic in the thickness direction to form the piezoelectric ceramic 12. Then the surrounding of one of the electrodes 14 is removed by etching or the like to form an electrode 16 thereby forming a piezoelectric ceramic vibrator 10. When a signal is applied between the electrodes 14, 16 of the vibrator 10, an ultrasonic wave radiating from the major face is maximized at a part formed with the electrode 16 and is made smaller continuously as remote from the part. Thus, the diameter of the electrode 16 is selected properly to reduce the side lobe.
Patent JP-S6328376-A (JP)
Title: Food production utilizing bamboo
Inventor: KUSAKA BUICHI
IPC: A23L19/00
Filed: 1986-07-22
Abstract: PURPOSE:The food is brought into direct contact with bamboo so that the tasteful and nutrient components in bamboo are transferred into the food whereby the title tasteful food rich in nutrients is obtained. CONSTITUTION:Bamboo tubes filled with a food such as soybean curd, rice, boiled fish paste or tempering water for alcoholic liquid are heated or treated with a low-frequency electromagnetic field to transfer polysaccharides, vitamins, minerals and other tasteful and nutrient components into the food.
Patent JP-H0335936-A (JP)
Title: Discharge state analyzing device
Inventor: WATANABE HARUMI
IPC: B23H1/02
Filed: 1989-07-04
Abstract: PURPOSE:To accurately discriminate the state of electric discharge machining already effected by means of data by which a discharge state is classified more finely by providing an efficiency calculating means which determines normal discharge from discharge data created by a discharge data creating means and calculates a ratio of a generating interval of normal discharge as efficiency. CONSTITUTION:When a discharge voltage and a discharge current are detected by means of detectors 7 and 8, detecting signals therefrom are digitally converted and inputted during each of signal sampling periods set at specified intervals by means of a signal sampling means 16-1 in a CPU 16, and discharge data is created by a discharge data creating means 16-2. From discharge data created by the discharge data creating means 16-2, normal discharge is determined by an efficiency calculating means 16-4 and a ratio of a generating interval of normal discharge is calculated as efficiency. From discharge data created by the discharge data creating means 16-2, a stability calculating means 16-5 determines a discharge state as stability of discharge in a ratio of the total number of discharge generating times to the number of discharges except a normal discharge.
Patent JP-H0222814-A (JP)
Title: Manufacture of compound semiconductor device
Inventor: HATANO GOKOU
IPC: H01L29/80
Filed: 1988-07-11
Abstract: PURPOSE:To extremely reduce carbon injected into a grown crystal, to suppress a hillock in the crystal, and to obtain the crystal having high quality and high purity even in high Al composition by employing AlH(CH3)2 as an aluminum material. CONSTITUTION:A GaAs substrate 15 in which its surface is purified is placed on a susceptor 14, high purity hydrogen is introduced from a gas inlet 12, and the atmosphere in a reaction tube 11 is replaced. Then, a gas outlet 13 is connected to a rotary pump, and the tube 11 is evacuated. Thereafter, arsine gas from the inlet 12 is introduced, the susceptor 14 and the substrate 15 are heated by a high frequency coil 16, and the surface of the substrate is cleaned. Then, the introduction of the arsine is stopped, phosphine gas is introduced, sufficiently replaced, AlH(CH3)2, In(CH3)3, Ga(C2H5)3 prepared beforehand at a predetermined mixture ratio (e.g., 0.25:0.5:0.25) are introduced, and an InGaAlP layer is grown. Thus, the introduction of carbon into the grown crystal is extremely reduced.