baber/WOPTO huggingface dataset:
Patent JP-2001271021-A (JP)
Title: Method for producing pencil lead
Inventor: MATSUMOTO KOICHI
IPC: C09D13/00
Filed: 2000-03-28
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a pencil lead, which makes it possible to largely improve the flexural strength of the pencil lead and reduce the irregularity of the flexural strength. SOLUTION: This method for producing the pencil lead, comprising kneading a colorant with a binder, extruding the kneaded product and then baking the extrusion product, characterized by using asphalt or pitch containing an antioxidant for a part or all of the binder.
Patent JP-2001284133-A (JP)
Title: Resistor-type inductance device
Inventor: AKIYAMA NAOTO
IPC: H01F27/00
Filed: 2000-03-31
Abstract: PROBLEM TO BE SOLVED: To reduce an electrical remedying device in size, weight, and cost by a method where a resistor-type inductance device in which a power resistor and an inductor are formed into one piece is provided. SOLUTION: A resistor-type inductance device has an inner structure, in which a metal foil conductor 105 and an insulator 106 that is formed like a film and wider than the conductor 105, are wound alternately on a core tube 104, an electrode terminal 101 is connected electrically to the innermost part of the conductor 105, and an electrode terminal 102 is connected electrically to the outermost part of the conductor 105, with which a specific resistive component and a specific inductive component are produced between the electrode terminals 101 and 102.
Patent JP-2001283481-A (JP)
Title: Recording medium and device and method for recording
Inventor: ITO AKIYOSHI
IPC: G11B11/105
Filed: 2000-03-30
Abstract: PROBLEM TO BE SOLVED: To record information in a simple device structure. SOLUTION: The medium has an information recording layer 5 where magnetization direction is inverted by irradiating the layer with light and applying a magnetic field, an intermediate layer 4 formed on one face of the information recording layer 5, and a magnetic field generating layer 3 which is formed on the other face of the intermediate layer 4 and in which temperature is changed by irradiation of light, a leaked magnetic field is generated in a first direction at the temperature lower than a specified temperature and a leaked magnetic field is generated in a second direction at the temperature higher than the specified temperature.  Information is written in the information recording layer 5 by controlling the temperature of the magnetic field generating layer 3 to higher or lower than the specified temperature to control the direction of the leaked magnetic field applied from the magnetic generating layer 3 on the information recording layer 5.
Patent JP-2001285189-A (JP)
Title: Wireless base station and program storage medium
Inventor: DOI YOSHIHARU
IPC: H04B7/10
Filed: 2000-04-03
Abstract: PROBLEM TO BE SOLVED: To provide a wireless base station that improves the accuracy of separating a signal from a new mobile station when starting a wireless connection to the new mobile station through the forming of an antenna directivity. SOLUTION: Frequency estimate sections 57, 58 respectively detect a frequency offset and a timing offset from a signal received from a mobile station via a control channel. A weight calculation section 53 corrects a received signal via a communication channel with respect to the frequency offset and the timing offset, and separates the signal of the mobile station from the received signal after the correction when the antenna directivity is formed to the mobile station to make a new wireless connection.
Patent JP-2001286988-A (JP)
Title: Ingot-making method
Inventor: YAMANAKA AKIHIRO
IPC: C22C1/02
Filed: 2000-04-04
Abstract: PROBLEM TO BE SOLVED: To provide an ingot-making method for obtaining the cast ingot without developing macro-segregation and porous shrinkage cavity. SOLUTION: This ingot-making method is performed by which the cast ingot 1 having molten metal 4 in the inner part is taken out from a mold and successively, the press-reduction is applied to a part of the side surfaces mutually faced in the cast ingot having the molten metal from the inner part to the upper end part till press-sticking the solidified shells in both sides in the inner part of the cast ingot at the press-reduction position. This method is suitable to be applied to the ingot-making of particularly an alloy steel, stainless steel, Ni-base supper alloy, etc.
Patent JP-2001288153-A (JP)
Title: Method for racemizing optically active amino acid amide
Inventor: URAGAKI TOSHITAKA
IPC: C07B55/00
Filed: 2000-04-06
Abstract: PROBLEM TO BE SOLVED: To provide a method for racemizing an optically active amino acid amide in which water-removing process is eliminated in the racemization process of an amino acid amide in an aqueous solvent. SOLUTION: A basic compound is directly added to a solution of an amino acid amide dissolved in an aqueous solvent, and thereby the solution is separated into two layers. The organic layer is heated under stirring to achieve the racemization.
Patent JP-2001287502-A (JP)
Title: Magnet wheel
Inventor: KAWAGUCHI KEIJI
IPC: B60B19/12
Filed: 2000-04-07
Abstract: PROBLEM TO BE SOLVED: To increase attracting force by using plural magnets, to prevent an increase in the size and weight, and to prevent a change in the attracting force by a pipe diameter. SOLUTION: Almost disk-shaped wheel body parts 11 are formed of a ferromagnetic substance material, and are arranged on the axial directional both ends of a wheel shaft part 12 so as to make a pair. The wheel shaft part 12 is formed of a ferromagnetic substance material being wholly a magnet or including a magnet in at least a part. Almost disk-shaped magnets 13 are respectively arranged outside the wheel body parts 11 to be magnetized so that polarity of magnetic pole surfaces sandwiching the wheel body parts 11 becomes the same as polarity of a magnetic pole surface of an end part of the wheel shaft part 12. A taper having an inclination changing in plural stages is arranged on an outer peripheral surface of the wheel body parts 11 to cope with a wide range curved surface as a traveling road surface.
Patent JP-2001289248-A (JP)
Title: Sliding bearing and method of manufacturing the same
Inventor: MIZUNO NAOTO
IPC: F16C33/14
Filed: 2000-04-07
Abstract: PROBLEM TO BE SOLVED: To provide a sliding bearing capable of satisfying the sliding performance such as the withstand load performance, the seizure resistance and the foreign matter depositing characteristic necessary for the sliding bearing at a high level and a method of manufacturing the sliding bearing at a low cost. SOLUTION: The curing treatment is executed on a maximum load application part of a sliding surface of a bearing alloy composed of Al or Cu alloy, and a dimple oil reservoir of a specific size is formed, on the other hand, the curing treatment is not executed on at least a part of a comparatively low load, needing the foreign matter depositing characteristic of the sliding surface, that is, within a range from 20 deg. to 70 deg. in the circumferential direction with respect, to the maximum load application direction, to keep the foreign matter depositing characteristic.
Patent JP-2001289199-A (JP)
Title: Turbo compressor
Inventor: YOSHIOKA TORU
IPC: F04D17/12
Filed: 2000-04-10
Abstract: PROBLEM TO BE SOLVED: To provide a turbo compressor capable of maintaining a machine dimensional accuracy at a high level and increasing a compression performance by suppressing a housing scroll part from thermally deformed to prevent a turbo impeller from coming into contact with a scroll so that a shroud clearance can be set to a small value. SOLUTION: This turbo compressor comprises a gear mechanism and at least a pair of turbo impellers 3 connected to both sides of the shaft of the pinion gear thereof. The gear mechanism is stored in a gear cover 8, the turbo impellers 3 are stored in housing scroll parts 7 provided adjacently to each other at both sides of the gear cover 8, and a discharge pipe 9 is formed integrally with a discharge port opening on the side of the housing scroll part 7 and extended downward. A clearance 10 formed of the gear cover 8 and the housing scroll part 7 is set at such an amount equal to or lower than a specified value that the gear cover 8 and the housing scroll part 7 are brought into contact with each other and pressed against each other by a thermal expansion action during the operation.  In addition, shim plate members 11 are inserted into the clearance 10, or a rib 12 not allowing the housing scroll part 7 to thermally expand by a specified value or higher is provided on the gear cover 8.
Patent JP-2001296343-A (JP)
Title: Device for setting sound source azimuth and, imager and transmission system with the same
Inventor: HAYASHI KENSUKE
IPC: G10L15/28
Filed: 2000-04-11
Abstract: PROBLEM TO BE SOLVED: To control to correctly direct a first microphone set to a sound source. SOLUTION: There are provided the first microphone set 160, a driving means 140 and control means 130 and 150. The first microphone set 160 including at least two first microphones 120a and 120b is supported turnably about a rotary shaft, orthogonal to a scanning face where the microphones 120a and 120b are present. The driving means 140 turns the first microphone set 160 about the rotary shaft to move the first microphones 120a and 120b on the scanning face. The control means 130 and 150 calculate a difference of required times for the sound from the sound source to reach the first microphones 120a and 120b, and control the driving means 140 to reduce and converge the time difference to a set value for the first microphone set 160.
Patent JP-2001295022-A (JP)
Title: Partial carburizing and quenching method
Inventor: HARA HIDETOMO
IPC: C21D9/00
Filed: 2000-04-12
Abstract: PROBLEM TO BE SOLVED: To provide a partial carburizing and quenching method by which the process and the number of stages for partial carburized parts are reduced and lead time can be shortened. SOLUTION: In the case screw parts 1 having a male screw part 1a which does not need carburizing treatment and a screw head 1b requiring carburizing treatment are subjected to carburizing and quenching treatment in carburizing gas in this partial carburizing and quenching method, a screw-fitted cap 2 composed of a bottomed cylindrical copper and whose outer surface is coated with copper plating is used, and the female screw part 2c of the cap 2 is screwed on the male screw part 1a, and further the tip of the cap 2 is abutted on the screw head 1b to perform carburizing and quenching.
Patent JP-2000308781-A (JP)
Title: Shuttle support for sewing machine
Inventor: TAJIMA IKUO
IPC: D05B57/14
Filed: 2000-04-18
Abstract: PROBLEM TO BE SOLVED: To prevent needle thread from being dragged effectively, when the needle thread passes through a shuttle support part comprising a shuttle support and an inner shuttle, and to make it very easy to maintain the shuttle. SOLUTION: In this shuttle support 14, with respect to a vertical shuttle comprising an outer shuttle 5 which is connected to a shuttle driving shaft 3 mounted on a shuttle support 2 horizontally to rotate and an inner shuttle 6 which is fitted to the inside of the outer shuttle 5 so as to be able to rotate relatively, the inner shuttle 6 is kept not to rotate. In this case, a hollow part 17 is formed in a shuttle support 14 which is fixed to a shuttle support 2 and extended, and the hollow part 17 is freely fitted to a protrusion part 16 mounted on the inner shuttle 6, thereby the inner shuttle 6 can be kept not to rotate.
Patent JP-2001305091-A (JP)
Title: Method and device for determining passivation
Inventor: GOHARA MAKOTO
IPC: G01N27/26
Filed: 2000-04-19
Abstract: PROBLEM TO BE SOLVED: To provide a method and a device for determining passivation, allowing easy measurement with good reproducibility in a short time without corroding a passivated coat or influencing a measuring position. SOLUTION: In this method and device for determining the passivation of a stainless steel surface, corrosion resistant metal is disposed between the stainless steel surface and a reference electrode, and potential difference generated between the stainless steel surface and the reference electrode is measured to determine the presence of passivation. In this case, the corrosion resistant metal is titanium.
Patent JP-2001304309-A (JP)
Title: Wheel support structure
Inventor: NOMURA KEISUKE
IPC: F16D65/02
Filed: 2000-04-19
Abstract: PROBLEM TO BE SOLVED: To solve the problem of causing increase in man-hours for manufacturing work and man-hours for assembling work to a vehicle body because of the use of many bolts and machining many threaded holes, since a rolling bearing and a brake caliper are respectively fixed to a knuckle by a bearing side fastening bolt and a caliper side fastening bolt different from the bearing side fastening bolt. SOLUTION: Man-hours for manufacturing work and man-hours for assembling work to the vehicle body are reduced by reducing the number of bolts in use and the number of threaded holes to be machined, with the use of mounting structure 25 composed of a mounting flange 16 of the double row rolling bearing 10; an extension mounting part 17 extending from the brake caliper 15 so as to overlap the mounting flange 16; the knuckle 19 disposed to overlap the mounting flange 16; and a common fastening bolt 21 inserted through fastening holes 20a, 20b, 20c formed in the overlapping parts of the mounting flange 16, extension mounting part 17 and the knuckle 19.
Patent JP-2001304507-A (JP)
Title: Combustion device for large kettle
Inventor: YAMAMOTO SHUICHI
IPC: F24B1/20
Filed: 2000-04-20
Abstract: PROBLEM TO BE SOLVED: To provide a combustion device for a large kettle, which remarkably raises combustion efficiency in respect of the large kettle and does not involve a danger when used. SOLUTION: The combustion device for a large kettle consists of an outer peripheral wall 1 having a cylindrical shape and capable of supporting large kettle 15 at the upper portion thereof, an inner peripheral wall 2 provided throughout the entire inside periphery along the wall 1 keeping a distance 17 between itself and the wall 1, and a combustion unit 3 held in the wall 2. A space 18 formed in the wall 2 is divided into an upper part and a lower part. A flame collecting unit 5 having a flame passing hole 6 at its center and allowing the spaces 18, 18 to communicate with each other is provided at a position above the combustion unit 3.
Patent JP-2001308451-A (JP)
Title: Semiconductor light emitting element
Inventor: ISHIKAWA TSUTOMU
IPC: H01S5/343
Filed: 2000-04-21
Abstract: PROBLEM TO BE SOLVED: To realize a semiconductor light emitting element with excellent wavelength stability capable of preventing the generation of any wavelength jump even in the case of the generation of modulation in a high output or reflected return lights. SOLUTION: In a semiconductor light emitting element in an MQW diffraction grating structure to be used mainly for a gain coupling DFB laser, the well layer of an MQW-A is made thicker than that of the well layer of an MQW-B so that the rate of a gain coupling coefficient to a refractivity coupling coefficient can be increased. The well layer and barrier layer of the MQW structure 2 are respectively constituted of GaInAsP whose compositions are different.
Patent JP-2001309586-A (JP)
Title: Small-sized motor and method of manufacturing the same
Inventor: YAMAUCHI JUNPEI
IPC: H02K1/17
Filed: 2000-04-21
Abstract: PROBLEM TO BE SOLVED: To provide a lighter small-sized motor and its manufacturing method. SOLUTION: A small-sized motor 1 which is provided with a cylindrical main yoke 2, a sub-yoke 3 which has a gap portion and a c-shaped cross section and is pressure-welded for arrangement to the internal peripheral part of the main yoke 2 elastically, and a first magnet 6 and a second magnet 7 arranged on the internal peripheral part of the sub-yoke 3. The gap portion of the sub- yoke 3 is arranged in an approximately center part of the first magnet 6, and is filled with an adhesive agent for gluing the sub-yoke 3 and the first magnet 6.
Patent JP-2001312721-A (JP)
Title: Image processing method, detecting method for relative density, and image processor
Inventor: TAKAHASHI HIROYASU
IPC: G06V30/162
Filed: 2000-04-26
Abstract: PROBLEM TO BE SOLVED: To segment a character or the like, which is written with a pen or the like, relatively darker than a background in a multi-level image at a high speed to be used for the preprocessing of character recognition or the like, and to perform binarization by emphasizing an object so as not to impair the discriminability of characters or graphics. SOLUTION: While paying attention to the fact that the character written with a pen or the like is relatively darker than the background, a density relative to the periphery is found, the binarization is performed and the object such as character is emphasized. Namely, this device is provided with a meshing part 13 for meshing an inputted image with a sub-image, an average density detecting part 14 for calculating the density of each of meshes, an attentional pixel weight coefficient storage part 18 for determining the degree of influence upon an attentional pixel of a mesh adjacent to the mesh, to which an attentional pixel belongs, a relative density calculating part 19 for detecting the relative density on the basis of the density and the degree of influence, an absolute density storage part 17 for detecting and storing the absolute density of the attentional pixel,  and output density calculating part 21 for calculating the output value of the attentional pixel on the basis of the relative density and the absolute density.
Patent JP-2001311488-A (JP)
Title: Lock ring insert device for detachment preventing coupler
Inventor: ARAKAWA NORIYUKI
IPC: F16L21/08
Filed: 2000-04-28
Abstract: PROBLEM TO BE SOLVED: To provide a lock ring insert device enabling easy inserting of a lock ring into a detachment preventing coupler trough a hole from the outer surface of a receive coupler to a groove on the inner surface of receive coupler in which an insert coupler is inserted. SOLUTION: A lock ring insert device for the detachment preventing coupler 10 can insert a lock ring 3a into a groove 2 on an inner surface of a receive coupler 1 through a hole 7 from the outer surface of the coupler 1 after the insertion of the insert coupler 5 made on the edge of pipe into the receive coupler 1 made on the edge of the other pipe. The frame 11 of the insert device can be assembled or disassembled freely by the lock ring setting bolt holes 12 on the other surface of the coupler 1. The threaded rod 16 is set on the frame 11 and is able to be rotated on the axis parallel to the axis of the hole 7 in which the lock ring is inserted. The transfer device 16c is screwed onto the rod 16. The rod 16 can be rotated in regular or reverse direction by the rotation of the device 16b.  The joint 17 which can catch and release freely the lock ring 3a inserted into the hole 7 is installed in the transfer unit 16c.
Patent JP-2001311393-A (JP)
Title: Tunnel structure and tunnel construction method
Inventor: MATSUOKA HAJIME
IPC: E21D11/00
Filed: 2000-04-28
Abstract: PROBLEM TO BE SOLVED: To provide a tunnel structure and a tunnel construction method capable of reinforcing a tunnel lining with a simple structure and coping with tunnel back stress. SOLUTION: This tunnel structure formed by lining a pit wall face with a tunnel skeleton comprises an arch structural body constructed by stacking a plurality of block bags and the tunnel skeleton lined on the inner peripheral side of the arch structural body. The stress applied to the back face of the tunnel skeleton is supported by an arch reinforcing band of the arch structural body and the back sediment of the arch structural body in the tunnel structure and the tunnel construction method.
Patent JP-2001312165-A (JP)
Title: Induction coil, its manufacturing method and image forming device
Inventor: MIYAHARA AKIKO
IPC: H05B6/44
Filed: 2000-04-28
Abstract: PROBLEM TO BE SOLVED: To provide an induction coil which is easily manufactured and easily repaired, and to provide its manufacturing method and an image forming device. SOLUTION: Bobbins 6 supporting conductors 14, 15 and 16 are formed by coupling plural bobbin members 11, 12 and 13 which can be attached to/detached from each other.
Patent JP-2001309882-A (JP)
Title: Flexible tube
Inventor: HIGASHIKUBO TAKASHI
IPC: A61B1/00
Filed: 2000-04-28
Abstract: PROBLEM TO BE SOLVED: To provide a flexible tube which is achieved to be thinner than an existing flexible tube and maintains flexibility and the nature of not kinking. SOLUTION: A flexible tube 10, which has a tube wall with a reinforcing layer 2 placed between an inner layer 1 and an outer layer 3 made of resin. The reinforcing layer 2 is formed by weaving rectangular wires 4a, 4b. Thickness A of the rectangular wires 4a, 4b must be more than 15 μm but less than 25 μm. The part which falls on a bended part L for the rectangular wires 4a, 4b should be wrapped up in a manner that a weaving pitch C becomes less than 6 mm. Also, the values for the thickness A, the width B, and the weaving pitch C should be set up to satisfy these two inequalities, A×B>700 and A×B×C<7500.
Patent JP-2001318187-A (JP)
Title: Cask
Inventor: OSONO MASANARI
IPC: G21C19/32
Filed: 2000-05-02
Abstract: PROBLEM TO BE SOLVED: To improve the heat conduction efficiency of a cask. SOLUTION: A plate member 201 is attached around a shell body 101 and on the part of the plate member 201 coming outside the cask, mountains are provided. Inside a space 206 formed with the plate member 201, an aluminum honeycomb member 210 combined with resin 106 is installed. The decay heat conducted to the shell body 101 is conducted to the plate member 201 constituting the cask outer surface via the plate member 201 and the honeycomb member 210 and radiated. At this time, by providing mountains 207 to the plate member 201 and spreading the radiation area, radiation efficiency is raised.
Patent JP-2001319622-A (JP)
Title: Lamp using graded functional material
Inventor: UMEMOTO AYUMI
IPC: H01J61/36
Filed: 2000-05-10
Abstract: PROBLEM TO BE SOLVED: To provide a lamp structure having a blocking body arranged for airtightly sealing a discharge vessel, which makes it possible to prevent a dam age of a lamp caused by a sealed part for welding the blocking body and the discharge vessel even if internal pressure in the discharge vessel reaches one hundred and several tens of atm during turning on of the lamp, and to obtain a stable pressure resistance and durability, and also to obtain a preferable result in optical performance. SOLUTION: An expression d1/d2>=0.95 is satisfied, wherein d1 (mm) is the outer diameter of a welded and sealed part of a blocking body, and d2 (mm) is the inner diameter on the discharge vessel side to which the blocking body is welded.
Patent JP-2001288983-A (JP)
Title: Continuous laying horizontal drilling method
Inventor: MURATANI KAZUO
IPC: F16L1/024
Filed: 2000-04-04
Abstract: PROBLEM TO BE SOLVED: To enable continuous laying drilling which is made unable in conventional technique, and to solve a problem in which continuous excavation is made unable and the time and labor are required because excavation operation is stopped temporarily and a pipe is connected for obtaining a long-sized pipe and the labor of the connection of a feed pipe, a communication wire and a feeder is required in a conventional drilling method. SOLUTION: The long-sized pipe is required for horizontal drilling, but the long-sized pipe is obtained by successively connecting short-sized pipes. The communication wire, the feeder, the feed pipe or the like is passed previously through these short-sized pipes, and connection is made unnecessary. Since a groove may be formed to the long-sized pipe for pushing the pipe into soil and pulling up the pipe, the grooves may be formed to connecting sections or the short-sized pipes having slightly different diameters may be used alternately. Thus, continuous excavation is enabled, and the time and labor are also omitted. Fig. 3 shows one example of the connecting section.