baber/WOPTO huggingface dataset:
Patent JP-2001177410-A (JP)
Title: High precision d/a converter circuit
Inventor: KINUGASA NORIHIDE
IPC: H03M1/76
Filed: 1999-12-21
Abstract: PROBLEM TO BE SOLVED: To realize a D/A(digital/analog) converter circuit that can output a desired analog voltage with high precision even when many numbers of conversion bits are required with a small chip area. SOLUTION: The high precision D/A converter circuit is provided with a high-order digital/analog converter circuit section 100 that provides an output of a 1st voltage Va and a 2nd voltage Vb obtained by D/A-converting high-order 5-bits in a 13-bit input code to 1st and 2nd output nodes 11, 12 via two buffers 10a, 10b each having the same characteristic, a low-order digital/analog converter circuit section 200 that provides an output of a voltage obtained by D/A-converting low-order 8-bits of the input code to a 3rd output node 13 by using the voltages of the two output nodes for a reference voltage of an R-2R ladder type circuit, a sample-hold section 250 that selectively samples and holds the voltage of the 3rd output node 13 being D/A conversion output of the 13-bit input code in response to a value of the input code,  and an output section 300 that multiplies the D/A-converted output voltage that receives sample and hold processing with a gain around an optional voltage Vc as a center.
Patent JP-2001174802-A (JP)
Title: Reflection type liquid crystal display device
Inventor: SUYAMA KOJI
IPC: G02F1/1335
Filed: 1999-12-21
Abstract: PROBLEM TO BE SOLVED: To provide an excellent reflection type liquid crystal display device, wherein the reflectance at the time of black display is lowered and the contrast is high. SOLUTION: A liquid crystal cell 14 has a structure comprising a chiral nematic liquid crystal LC interposed between glass substrates 15 and 16, a scanning electrode member having a scanning electrode pattern 17, an insulating film 18 and an alignment layer 19 which are successively formed on the glass substrate 15 and a signal electrode member having a signal electrode pattern 20, an insulating film 21 and an alignment layer 22 which are successively formed on the glass substrate 16. A scattering plate 24, a quarter-wavelength plate 25 and a polarizing plate 26 are successively laminated on the glass substrate 15 to form the reflection type liquid crystal display device 13.
Patent JP-H11184196-A (JP)
Title: Driving mechanism and image forming device provided with the same
Inventor: MAKINO TORU
IPC: G03G15/00
Filed: 1997-12-17
Abstract: PROBLEM TO BE SOLVED: To secure accuracy in positioning both gears, in the case of transmitting a driving force to another unit by installing a positioning part for positioning the 1st shaft of a main body to the 2nd shaft of another unit in another unit, and installing a bearing means for the 1st shaft in the positioning part. SOLUTION: Another unit 11 as a manual paper feeding unit is attached with the main body 1 of a copying machine, a paper feeding roller 4 on the main body 1 side and a paper feeding roller 14 on another unit 11 side are rotary-driven so as to manually feed the recording paper to the copying machine main body 1 through the slender opening part 16 of another unit 11. In this case, the bearing member 9 for supporting the rotary shaft 2 of the main body 1 is installed in the positioning part 10 of another unit 11, and the bearing member 9 and the positioning part 10 are formed into one body. Thus, the bearing member 9 for supporting the rotary shaft 2 of the main body 1 is held by the positioning part 10.  Thus, a distance between the rotary shaft, 2 of the main body 1 and the rotary shaft 12 of the another unit 11 is decided, then, an axle-to-axle distance is easily kept constant, then, the accuracy in positioning both shafts is secured.
Patent JP-2001183561-A (JP)
Title: Optical element driving device and optical equipment having it
Inventor: UMETSU TAKUJI
IPC: G02B7/02
Filed: 1999-12-22
Abstract: PROBLEM TO BE SOLVED: To solve such a problem that the large size of a lens mirror cylinder or the like is brought on owing to the layout of a rack on the outside in the direction orthogonal to the optical axis of a converging unit required for avoiding interference with the converging unit when a thrust spring is arranged in the rack of a device holding member. SOLUTION: In an optical device driving device having the rack member 81 which holds an optical device 2 and is attached to the device holding member 8 capable of moving in the optical axis direction and which is meshed with a screw shaft 10a arranged so as to extend in the optical axis direction, an attaching part 81a to the device holding member in the rack member is formed into a shape that the device holding member is inserted into from the optical axis direction the elastically deformed state, and the rack member is energized against the device holding member and is brought into press-contact with it in the optical axis direction by elastic force generated in the attaching part.
Patent JP-2000186238-A (JP)
Title: Thick film type elastic insulating coating material
Inventor: SHIGEYA JUN
IPC: C09D133/06
Filed: 1998-12-24
Abstract: PROBLEM TO BE SOLVED: To provide a thick film type elastic insulating coating material which forms a coating film having an insulating property and a flame retardancy and is especially suitable for external finishing of building wall surfaces. SOLUTION: The titled material contains (A) an elastic resin emulsion prepared by dispersing in water a resin having a glass transition temperature of 30 deg.C or lower and a film-forming temperature of 25 deg.C or lower, (B) an alumina silicate balloon having a particle size of from 10 to 1,000 μm and (C) aluminum hydroxide having a particle size of 100 μm or smaller, wherein, against 100 pts.wt. resin solid component of (A), from 25 to 400 pts.wt. component (B) and from 20 to 100 pts.wt. component (C) are contained.
Patent JP-2000190236-A (JP)
Title: Manufacture of abrasive body
Inventor: KANAZAWA MINORU
IPC: B24D11/00
Filed: 1998-12-24
Abstract: PROBLEM TO BE SOLVED: To improve the strength of an abrasive layer and a back layer, generate no peeling of the abrasive layer and the back layer when a metallic shaft or a magnetic head is polished, and carry out the removal of the surface unevenness of the metallic shaft, and the surface polishing of the megnetic head without generating a flaw. SOLUTION: This abrasive body is composed by providing an abrasive layer 5 including abrasive grains 3 and a binder 4, on one side surface of a supporting body 2, and a back layer 6 including an inorganic powder 7 and a binder 8, on the surface of the opposite side, and after coating and drying the abrasive layer 5 and the back layer 6, it is heat treated at the temperature and the time to expedite the cross-linking of the binders, to harden and strengthen the abrasive layer and the back layer, so as to improve the durability.
Patent JP-H11179369-A (JP)
Title: Electric deionized water producing apparatus
Inventor: KUWATA MASAHIRO
IPC: B01D61/48
Filed: 1997-12-24
Abstract: PROBLEM TO BE SOLVED: To prevent the scale deposition of hard components in a concentration chamber and to keep deionization performance by installing a softening treatment column in a concentrated circulating water circulating line circulated in the concentration chamber. SOLUTION: An electric deionized water producing apparatus (FDI apparatus) 1 is composed of deionization chambers filled with ion exchangers such as ion exchange resins and ion exchange fibers and concentration chambers separated from deionization chambers through ion exchange membranes, which are installed alternately. All concentrated water discharged from the concentration chambers and part of raw water are introduced into a concentrated water storage tank 2 and stored. The concentrated water in the tank 2 is supplied to a softening treatment tank 3 by a circulating pump, softened water obtained by removing hard components in a softening treatment column 3 is supplied to the concentration chambers and electrode chambers of an FDI apparatus 1.  A trace quantity of hard components existing in the concentrated water are removed in the column 3, circulated, and used and can prevent the generation of scale in the concentration chambers even after being used for a long time.
Patent JP-2001184737-A (JP)
Title: Method for recording master optical disk and optical disk
Inventor: FURUMIYA SHIGERU
IPC: G11B7/26
Filed: 1999-12-24
Abstract: PROBLEM TO BE SOLVED: To ensure stable recording of pits of small widths with a recording method for a master optical disk formed with parts exposed with recording laser beams as pits. SOLUTION: At least the two laser beams are circumferentially offset at approximately a half track in the difference of a distance from the center of rotation of the disk in such a manner that the beams do not overlap in irradiated parts. The disk is irradiated the first laser beam subjected to intensity modulation according to recording information in precedence in a recording direction, by which intermittently exposed parts (marks) are formed. The disk is irradiated with the second laser beam of the specified intensity in succession to the first laser beam, by which the disk is exposed continuously in superposition on the edges of the marks described above. The unexposed parts of the master disk are molded as the information pits on the optical disk substrate surface.
Patent JP-H11189617-A (JP)
Title: Novel transition metal compound, catalyst component for polymerization of alpha-olefin, and production of alpha-olefin polymer
Inventor: KASHIMOTO MASAMI
IPC: C08F4/6592
Filed: 1997-12-25
Abstract: PROBLEM TO BE SOLVED: To obtain a high-molecular-weight, high-melting-point α-olefin polymer capable of extrusion and injection molding in high yields by using a specified transition metal compound as the catalyst component for the polymerization of an α-olefin. SOLUTION: The transition metal compound used is represented by the formula (wherein R<1> , R<2> , R<4> , and R<5> , which are independent of each other, are each hydrogen, a 1-10C hydrocarbon group, or the like; R<3> and R<6> , which are independent of each other, are each a 3-10C saturated or unsaturated divalent hydrocarbon group which forms a ring fused with the five-membered ring to which it is bonded; R<7> and R<8> which are independent of each other, are each a 1-20C hydrocarbon group, a 1-20C halohydrocarbon group, or the like; Q is silicon, germanium, or tin; A is a 3-12C divalent unsaturated hydrocarbon group which, together with the Q to which it is bonded, forms a ring; R<a> is a 1-10C saturated or unsaturated hydrocarbon group; (m) and (n), which are independent of each other, are each an integer of 0-20; (l) is an integer of 0-22;  X and Y, which are independent of each other, are each a 1-20C hydrocarbon group, or the like; and M is a transition metal of group 4, 5, or 6 in the periodic table).
Patent JP-2001180960-A (JP)
Title: Press molding method of oxynitride glass and press molded oxynitride glass obtained by press molding method
Inventor: TAKAGI KATSUHISA
IPC: C03B40/02
Filed: 1999-12-24
Abstract: PROBLEM TO BE SOLVED: To provide an optimum mould release layer for a press molding of an oxynitride glass. SOLUTION: A press molding method of an oxynitride glass by a molding die is characterized by an existence of a mold release layer including carbon and/or boron nitride between a surface of an oxynitride glass and a surface of the molding die, in order to keep a nitrogen quantity in a molded oxynitride glass after press above 90% (mass ratio) of the nitrogen quantity in a molded oxynitride glass before press, with raising the mold release property between an oxynitride glass after press and a molding die.
Patent JP-2000195415-A (JP)
Title: Electron emission device, electron source, image forming apparatus and their manufacture
Inventor: TEJIMA TAKAYUKI
IPC: H01J9/02
Filed: 1998-12-25
Abstract: PROBLEM TO BE SOLVED: To simplify a manufacturing process of a conductive film and provide a low cost electron emission device, an excellent electron source and an image forming apparatus using it and their manufacturing methods. SOLUTION: A manufacturing method of an electron emission device includes steps of forming a couple of device electrodes 2, 3 on a base 1, adding liquid- drop of solution including material for forming a conductive film 4 by heat- baking the liquid-drop to be added and forming an electron emission section 5 on the conductive film 4. This manufacturing method has a step of hydrophobically treating the surface of the base 1 making contact with the liquid-drop before the step of adding the liquid-drop.
Patent JP-2000191112-A (JP)
Title: Article storage facility
Inventor: KATO NAOKI
IPC: E04H6/18
Filed: 1998-12-25
Abstract: PROBLEM TO BE SOLVED: To provide a article storage facility capable of achieving extremely efficient carry-in/carry-out work of an article without increasing the size of the whole facility, or greatly increasing the cost. SOLUTION: A article storage facility is provided with an article storage shelf 2 provided with a plurality of article storage parts, a plurality of carry-in parts in which articles to be carried in are carried from the outside, and a plurality of carry-out parts from which articles to be carried out are carried outside, and a loading and carrying part 5 to transfer the articles between the article storage part, the carry-in parts 3 and the carry-out parts 4 is selectively and positionally changed to either of a plurality of transfer positions for carry-in, and selectively and positionally changed to either of a plurality of transfer positions for carry-out.
Patent JP-2000191575-A (JP)
Title: Purification of bisphenol compounds, and bisphenol compounds produced by the purification
Inventor: OUCHI KATSUYA
IPC: C07C37/70
Filed: 1998-12-25
Abstract: PROBLEM TO BE SOLVED: To purify bisphenol compounds by industrially readily utilized method while reducing volatile components which are causative agents of odor or the like by forming the bisphenol compounds into a thin membrane and heating the obtained thin membrane to remove the volatile components. SOLUTION: (A) Bisphenol compounds with optionally added (B) 0.1-1,000 pts.wt. material (e.g. xylene) having <=250 deg.C, preferably <=210 deg.C, more preferably <=180 deg.C boiling point are formed into a thin membrane preferably by using a thin-layer evaporator or the like having a condenser for condensing the volatile components in the interior of the evaporator, and the obtained thin membrane is heated to remove the volatile components to purify the component A. Compounds of formula I [R1 is H or a monovalent (substituted) hydrocarbon; R2 is H, a halogen, OH or a monovalent (substituted) hydrocarbon; and R3 is H, a monovalent (substituted) hydrocarbon or a halogenated hydrocarbon], (e.g. 2,2'-diallylbisphenol A of formula II) are cited as the component A.
Patent JP-H11195902-A (JP)
Title: Laminated filter
Inventor: YOSHIMORI KENJI
IPC: H01P1/212
Filed: 1997-12-26
Abstract: PROBLEM TO BE SOLVED: To control spurious resonance and to prevent performance fluctuation of a lamination filter including pluralities of strip line conductor layers. SOLUTION: A dielectric body 1 is provided with 1st and 2nd strip line conductor layers 2, 3, an input output terminal conductor layer, ground conductor layers 6, 7 strip line capacitance coupling conductor layers 8, 9, a connection conductor layer 10, and via-hole conductor layers 11, 12. The 1st and 2nd strip line conductor layers 2, 3 are coupled capacitively with the strip line capacitance coupling conductor layers 8, 9 by using the connection conductor layer 10 and the via-hole conductor layers 11, 12. A planer pattern of the strip line capacitance coupling conductor layers 8, 9 is formed in a way that it is contained in a planer pattern of the strip line conductor layers 2, 3.
Patent JP-2001178269-A (JP)
Title: Root preventing sheet and root preventing system using the same
Inventor: HASHIMOTO MICHIO
IPC: A01G9/02
Filed: 1999-12-27
Abstract: PROBLEM TO BE SOLVED: To provide a root preventing sheet capable of effectively preventing roots of plant from extending from the joint of root preventing sheet. SOLUTION: In this root preventing sheet 1 for controlling extension of roots of plant planted on an artificial ground, a sheet joint zone 2 is provided with a root preventing metal component. The root preventing metal component may be arranged in a linear state along a sheet joint zone in the sheet joint zone and the root preventing metal component may be at least one of a copper component and a silver component and especially a copper wire 3. The structure of the sheet may be a structure in which the sheet is embossed so that its surface side and back side can be mutually engaged.
Patent JP-2001183619-A (JP)
Title: Method for controlling power consumption of liquid crystal display device, and portable information processing device
Inventor: ITO TAKAYASU
IPC: G09G3/36
Filed: 1999-12-27
Abstract: PROBLEM TO BE SOLVED: To provide a method for controlling power consumption of a color liquid crystal display device and a portable information processing device minimized in power consumption while controlling reduction in contrast at the time of displaying, without dependence on an application and any special change in hardware. SOLUTION: The power consumption is reduced by checking a color frequency from display information outputted from the liquid crystal display device and automatically converting a most frequent color into black by means of a software driver for controlling the display of the liquid crystal display device.
Patent JP-2000195474-A (JP)
Title: Secondary battery
Inventor: SAITO YASUYO
IPC: H01M10/0565
Filed: 1998-12-25
Abstract: PROBLEM TO BE SOLVED: To improve productivity and to enable compacting of storage and high durability, by composing by bending and piling a laminated or composite film with a side facing to the side on the electrode terminal draw-out side of a battery element as a bent-up side and loading the battery element interposedly, and by melting and sealing three sides of the laminated or composite film and bending the edge parts of two sides perpendicular to the bent-up side in the lateral direction. SOLUTION: In coating of a cell element, a laminated or composite film 11 is bent at the center part and the battery element is loaded between the upper side and lower side film, and the upper side and lower side film are piled and arranged so that collectors (lead wire connecting terminals) 5a, 5b are projected on the side facing to the bent-up side, and melted and sealed. Melted and sealed parts 13b, 13c of two sides perpendicular to the bent-up side, of the laminated or composite film 11 with three sides melted and sealed respectively, are bent to the same side in the lateral direction, to thereby form a secondary battery. A storing area of battery can be reduced by bending of the melted and sealed parts 13b, 13c, and the connection state with an adjacent battery can be formed by the melted and sealed parts 13b, 13c, to thereby enable to pile the battery stably.
Patent JP-H11181381-A (JP)
Title: Peelable adhesive and peelable adhesive sheet
Inventor: KODA KAZUO
IPC: C09J7/02
Filed: 1997-12-19
Abstract: PROBLEM TO BE SOLVED: To provide a peelable adhesive excellent in compatibility with a water- base ink, printability, blocking resistance, etc., and a peelable adhesive sheet. SOLUTION: This invention relates to the peelable adhesive which comprises 100 pts.wt. base ingredient mainly comprising a vinyl-modified rubber latex and an aq. water-soluble acrylic copolymer soln. and 10-100 pts.wt. filler and to a peelable sheet prepd. by using the adhesive.
Patent JP-2001185015-A (JP)
Title: Multi-connection electromagnetic relay
Inventor: NAKAMURA AKIHIKO
IPC: H01H50/14
Filed: 1999-12-27
Abstract: PROBLEM TO BE SOLVED: To provide a multi-connection electromagnetic relay having no homoge neous dualconnection. SOLUTION: A double-make type of electromagnetic relay (100) and a one- make type of electromagnetic relay (200) are mounted within a collection frame (300). A terminal (151) leading to movable contacts of the double-make type of electromagnetic relay and a terminal (124) connected with one end (123) of a coated wire being wound to form a coil (120) are connected to a terminal (251) leading to movable contacts of the one-make type of electromagnetic relay and a terminal (224) connected with one end (223) of a coated wire being wound to form a coil (220) through a coupling conductor (330) and a coupling conductor (340) within the region of the collection frame, respectively. The terminal (251) is connected to a battery (20) by connection of the battery and the terminal (151) while an individual connection to the battery is unnecessary.  The terminal (224) is earth-connected and the terminal (124) is also earth- connected while an individual earth-connection becomes unnecessary.
Patent JP-2001186678-A (JP)
Title: Generator for portable electronic apparatus, and portable electronic apparatus equipped therewith
Inventor: SAKAI YASUHIRO
IPC: H04M1/725
Filed: 1999-12-27
Abstract: PROBLEM TO BE SOLVED: To provide a generator for a portable electronic apparatus which is simple of constitution and is excellent in power generation efficiency, being capable of automatically securing the power at necessity merely by adding vibration to the portable electronic apparatus. SOLUTION: On the technical premise of a generator for a portable electronic apparatus which is installed in a portable electronic apparatus having a battery charger and a piezoelectric generator connected to that battery charger, the above piezoelectric generator is made of a stratified piezoelectric ceramic board where plate-shaped two sheets of piezoelectric ceramic elements are joined with each other with polarization reversed, and it generates power by hitting one side or both sides of this piezoelectric ceramic board.
Patent JP-H11251594-A (JP)
Title: Power mosfet having voltage clamped gate
Inventor: WILLIAMS RICHARD K
IPC: H01L29/78
Filed: 1998-12-28
Abstract: PROBLEM TO BE SOLVED: To overcome the problem of punch through breakdown by an arrangement wherein a diode breaks down when the gate-source voltage exceeds a specified level to clamp the gate voltage at a specified maximum level. SOLUTION: Since diodes D1-D6 are paired back to back, for example, they form open circuits between a source terminal S and a gate terminal G and between the source S' and gate G' of an MOSFET 800. The diodes D1-D6 can be scaled to break down at a voltage for protecting the gate oxide layer 802 in the MOSFET 800 under conditions of VGS=VGS'. When the VGS=VGS' is positive going, for example, the diode D1 breaks down to clamp the voltage VGS' at an allowable level equal to the sum the breakdown voltage of the diode D1 and the forward voltage drop across the diode D2.
Patent JP-2000197287-A (JP)
Title: Motor and its manufacture
Inventor: KUNIMATSU HIDEAKI
IPC: H02K1/27
Filed: 1998-12-28
Abstract: PROBLEM TO BE SOLVED: To reduce the weight of a rotor to increase the efficiency and the power of a motor by using a material of a small magnetic permeability for the rotor to prevent the distribution of a magnetic flux in the main body of the rotor. SOLUTION: Body 1a of a rotor is made of a material of a small permeability having a small magnetic permeability and a small conductivity. Permanent magnets 2, 3 are disposed around the body of a rotor and then a rotor yoke 1b made of a material of a small magnetic permeability is disposed around the permanent magnets 2, 3 to form a rotor 1. A magnetic flux is scarcely distributed in the rotor 1 made of the material of a small magnetic permeability. As a result, there is no short-circuit generated between each two adjacent basic magnets and therefore the rotor can be reduced in weight and consequently a motor having the increased efficiency can be obtained.