baber/WOPTO huggingface dataset:
Patent JP-H08127607-A (JP)
Title: Production of methyl methacrylate polymer
Inventor: SHIONO TAKESHI
IPC: C08F20/00
Filed: 1994-11-01
Abstract: PURPOSE: To obtain a methyl methacrylate (co)polymer having a high molecular weight and a narrow distribution of the molecular weight under relatively mild conditions by polymerizing monomers consisting essentially of methyl methacrylate in the presence of a specific catalyst. CONSTITUTION: Methyl methacrylate is polymerized in the presence of a catalyst comprising (A) a zirconocene/(B) a boron compound/(C) an alkylmetallic compound to afford the objective polymer. Furthermore, the component (A) is preferably ethylenebisindenylzirconiumdimethyl or biscyclopentadienylzirconiumdimethyl and the component (C) is preferably any of dimethylzinc, diethylzinc, dibutylzinc, dibutenylzinc and triisobutylaluminum. The component (B) is preferably a compound of BR3 (R is a lower alkyl or phenyl), especially trispentafluorophenylborane or XBR4 (X is a cation capable of forming a complex with the BR4 ), especially triphenylmethyl tetrakispentafluorophenyl borate.
Patent JP-H04147552-A (JP)
Title: Thermospray type ion source
Inventor: KANOTA KENZO
IPC: H01J49/10
Filed: 1990-10-06
Abstract: PURPOSE:To be very easy to handle, at less cost, adjustable in ion generation and easy to greatly change in flow rate (flow velocity) by providing an outer tube arranged so that the tip may reach an atmosphere and a high-insulative inner tube removably inserted into the outer tube so that the tip may open to an atmosphere to heat the outer tube for heating sample liquid passing through the inner tube. CONSTITUTION:The tip of an inner tube 22 is inserted into the position that is somewhat behind the tip of an outer tube 21. The inner tube 22 is connected to a liquid chromatograph via a joint 5. Eluate from the liquid chromatograph is led to the joint 5 through a stainless pipe and into a spray room through the inner tube 22. At this time, the eluate passing through the inner tube 22 is heated at a proper temperature due to heat conduction from the outer tube 21 which is electrified and heated by a power out of the tip into the spray room and ionized.
Patent JP-H11104795-A (JP)
Title: Immersion nozzle for continuous casting
Inventor: ISOMURA SACHIYOSHI
IPC: B22D11/10
Filed: 1997-10-01
Abstract: PROBLEM TO BE SOLVED: To prevent the thermal stress cracking of the upper end of the immersion nozzle, being caused by the difference between the materials of a nozzle part and a nozzle body (AG part) as well as to realize the lightening and the reduction of cost. SOLUTION: In the case of this nozzle, the immersion nozzle 1 is made by joining the upper end face of a nozzle body (AG part) 3 composed of alumina- carbon base refractory on the bottom end face of the nozzle part 2 composed of zirconia bricks, and the joint mortar is inserted into the joint clearance formed on the joint face. Further, in this case, a cylindrical iron skin 6 is attached around the side part centering the joint face, and the mortar is inserted into the clearance to combine both materials. The combined product is preferable because the joint strength of the nozzle part 2 and the nozzle body (AG part) 3 and the gas sealing property on the joint face can be kept high.
Patent JP-H1190139-A (JP)
Title: Air filter device
Inventor: MAEDA NOBUHIDE
IPC: B01D46/30
Filed: 1997-09-16
Abstract: PROBLEM TO BE SOLVED: To obtain a comfortable clean space in a room so that the mental condition of a person in the room is kept best by suppressing the growth of general living fungi and mold, keeping health noxious insects such as a flea and a tick off, removing an odor emitted from a product, material, etc., and increasing the number of minus ions generated. SOLUTION: Composite ceramics 3 obtd. by mixing three ceramics selected from among hornblende, serpentine, quartz diorite, granite porphyry, cristobalite, tuff, calcium oxide, magnesia, silica and titania is disposed on the upper stream side or downstream side of a filter medium 2 to obtain the objective air filter device 1. This air filter device 1 sends air, brought into contact with the composite ceramics 3, into the clean space in a clean room, a sickroom, etc.
Patent JP-2000092946-A (JP)
Title: Mower
Inventor: KAMIMURA KATSUHIKO
IPC: A01D34/63
Filed: 1998-09-24
Abstract: PROBLEM TO BE SOLVED: To improve mowing performance while suppressing the generation of noise. SOLUTION: This mower 11 has a rotator 19 arranged above a blade 18, and integrally rotating with the blade 18 with the phase set so that a downward bulged part 19a may be positioned at the front part of the braid 18, and the pressure of the front part of the blade 18 may be reduced with the rotation.
Patent JP-H0988203-A (JP)
Title: Heat-insulating panel and heat-insulating structure using the panel
Inventor: SUDO SUSUMU
IPC: E04B1/80
Filed: 1995-09-22
Abstract: PROBLEM TO BE SOLVED: To exhibit sufficient heat-insulating performance without generating heat-insulating loss though this panel can be inserted simply between shaft members. SOLUTION: In a heat-insulating panel 1, in which a panel body 2 consists of a synthetic resin form and face materials 3, 4 are laminated on both surfaces of the panel body 2, both face materials 3, 4 are projected from an an edge section on at least one side of the panel body 2. Heat-insulating structure is constituted by inserting the heat-insulating panel 1, in which the whole is formed in a square shape and both face materials are projected from edge sections on both sides of the panel body 2, between a pair of shaft members, and the width of the panel body 2 is set in the interval or less of the shaft members and the width of the face materials in the interval or more of the shaft members.
Patent JP-H11110796-A (JP)
Title: Optical pick-up
Inventor: YAMAMIYA KUNIO
IPC: G11B7/135
Filed: 1997-10-02
Abstract: PROBLEM TO BE SOLVED: To fix a hologram unit and a shutter unit and hence match a light axis by providing a hologram unit-fixing part consisting of a contacting surface that is in parallel with and vertical to the light axis and a shutter unit-fixing part consisting of the contacting surface that is in parallel with and vertical to the light axis. SOLUTION: A base unit C has a cylindrical storage part for accommodating a hologram unit A at a lower side, an accommodation part for accommodating a shutter unit at an upper side, and a through hole for retaining a collimator lens 41 at a center axis. The hologram unit A retains a semiconductor laser 20 that is a light source and a photodetector 21 for receiving reflection light from a storage medium on the bottom surface of a cylindrical surface. The center axis of the cylindrical surface is matched to the light axis of a semiconductor laser 20 and the cylindrical surface is engaged to a hologram unit accommodation part at the lower side of the base unit C, thus matching the light axis of the semiconductor laser 20 to that of the semiconductor laser 20.
Patent JP-S62128345-A (JP)
Title: Data processor
Inventor: MATSUDA SUSUMU
IPC: G06F1/00
Filed: 1985-11-30
Abstract: PURPOSE:To remarkably reduce a latency time accompanied by the initial clear/diagnosis of a main memory having a large storage capacity by providing a diagnostic means which performs the initial clear/diagnosis of the main memory separately from an arithmetic part. CONSTITUTION:When a power is thrown in, a memory patroller 12 issues a main memory access request to a memory control part 24 to perform the initial clear/diagnosis by every size S unit from, for example, the head area of the main memory, and also, outputs a physical address to a selection circuit 23. When the initial clear/diagnosis of size S at the main storage area is normally completed, a flag within an access check flag part 25 indicated by the physical address outputting from the selection circuit 23 is made on. When a size on which the initial clear/diagnosis has already been performed arrives at the size indicated by a switch 14, an operation start to start a system is instructed to an arithmetic part 11. And the initial clear/diagnosis by every size S unit is continued setting a remaining area within the main storage as an object.
Patent JP-S61145701-A (JP)
Title: Magnetic recording and reproducing method
Inventor: MORIOKA YOSHIHIRO
IPC: G11B5/02
Filed: 1984-12-20
Abstract: PURPOSE:To reproduce separately an image signal and a digital signal with a head having azimuth angles different from each other by recording shallowly a digital signal modulated by the heat having a different azimuth angle on a track recorded with an image signal. CONSTITUTION:The deepness of the recording layer of an image signal is 0.25-0.3 times the recording wavelength, and the signal is recorded up to the depth of 0.3-0.8mum in a domestic VTR. Since the thickness of a magnetic layer 27 of a magnetic tape is 2-4mum, an unrecorded layer 27c is present. As the recording and reproduction of a digital signal do not necessitate so high S/N as the recording and reproduction of an analog signal, a digital signal of a wide band is recorded on the shallow part of a recording layer 27b recorded with an image signal to form a digital signal recording layer 27a. When a digital signal is reproduced with 15dB S/N, the code error rat is a value of 10<-5> which approaches the practical value. Accordingly, 20-30dB S/N including an allowance can be satisfactorily secured.
Patent JP-H03135439-A (JP)
Title: Orthoalkylation of aromatic amine
Inventor: GUOOSHIYUU JIYON RII
IPC: B01J31/26
Filed: 1990-10-09
Abstract: PURPOSE: To improve the formation efficiency of an ortho-alkylated amine by heating an amine together with an Al alloy such as an Al/Cu alloy, a Friedel- Crafts catalyst and, optionally, Zn, etc., to prepare a catalyst. CONSTITUTION: An amine is heated together with (a) an Al alloy selected from Al/Cu, Al/Mg and Al/B alloys, (b) a Friedel-Crafts catalyst and, optionally, zinc and a solvent to prepare a catalyst. A pref. example of the amine is toluenediamine, diethyletoluenediamine or the like. The catalyst is allowed to react with an alkene and, optionally, a 2nd arom. amine under reaction conditions sufficient to form the object ortho-alkylated arom. amine at elevated temp. and pressure to produce the ortho-alkylated amine.
Patent JP-S62129824-A (JP)
Title: Motor driven camera
Inventor: FUKAHORI HIDEHIKO
IPC: G03B17/00
Filed: 1985-11-30
Abstract: PURPOSE:To improve the sensation of operation by providing a switching control means which switches a clutch means to a lens driving transmission system on detecting the operation of a photographic lens driving operation means and switching the clutch means when an operator has the intention of switching. CONSTITUTION:Only when the operator operates intentionally, the clutch means is switched to a zoom driving side or focus driving side by motors 1 and 44 and the driving is started immediately after the switching. Namely, when a switch for zooming is operation, the motor 1 is driven and a sun gear 3 begins to rotate counterclockwise, so that a stopper 7 moves a clutch lever 16 away according to the rotation of the gear. At this time, when a switch 22 is turned on, the end of switching operation to the zoom driving side is detected and then zooming operation is started. Planetary gear 5 engages the gear 10 in the switching operation and a zoom driving system moves slightly, but a photographer has no feeling of physical disorder.
Patent JP-2001092166-A (JP)
Title: Electrophotographic photoreceptor
Inventor: KAWADA NORISUKE
IPC: C08J7/04
Filed: 1999-09-24
Abstract: PROBLEM TO BE SOLVED: To obtain an electrophotographic photoreceptor excellent in surface roughness and roundness and dimensional precision by using a resin having fluidity improved without dispersing electrically conductive powder in the resin. SOLUTION: The electrophotographic photoreceptor has a substrate which comprises a resin and on whose surface an electrically conductive layer is formed.
Patent JP-H04146947-A (JP)
Title: Antistatic and transparent acrylic resin composition
Inventor: SUZUKI YOSHIO
IPC: C08L33/06
Filed: 1990-10-11
Abstract: PURPOSE:To improve permanent antistatic properties and transparency by compounding an acrylic resin with a specific transparent polyamide elastomer. CONSTITUTION:A polyamide-forming monomer contg. 50wt.% or higher caprolactam, a 6-20C dicarboxylic acid, and a polyoxyethylene glycol having a number-average mol.wt. of 800-3000 are condensed to give a transparent polyamide elastomer comprising 20-45wt.% polyamide segment and 80-55wt.% polyoxyethylene glycol segment and having a relative viscosity at 30 deg.C of 1.5 or higher and a haze value at 1mm thickness of 50% or lower. 100 pts.wt. mixture of 70-97wt.% acrylic resin with 30-3wt.% the polyamide elastomer is componded with 10 pts.wt. or lower at least one antistatic agent selected from the group consisting of a salt of an org. sulfonic acid and a salt of an org. phosphoric acid (e.g. sodidum dodecylbenzenesulfonate).
Patent JP-H10121105-A (JP)
Title: Hot pressing device for producing radial magnet
Inventor: ISHII AKIMASA
IPC: B22F3/035
Filed: 1996-10-14
Abstract: PROBLEM TO BE SOLVED: To provide a hot pressing device for producing a radial mangnet capable of hot pressing in a shorter time than a conventional one. SOLUTION: This device for hot-pressing a radial magnet consists of a die 1 having a columnar cavity 10 in the center, a vertically movable cylindrical upper punch 2 disposed above the die 1, a vertically movable upper center core 3 to be inserted into the upper punch 2, a vertically movable cylindrical lower punch 2' with a part of the tip inserted into the columnar cavity of the die, a vertically movable lower center core 3' inserted in the lower punch 2' and a heater 4 fitted around the die, and a heating element 6 is set in the center core 3' in its center.
Patent JP-H02117804-A (JP)
Title: Surface-hardening treatment of optical component of plastic
Inventor: TAKAGI MASAO
IPC: B29C45/14
Filed: 1988-10-28
Abstract: PURPOSE:To form the film of the hardened material having high accuracy of a surface shape on the optical surface of the plastic optical component constructed with a curved surface by a method in which a hardened member is arranged on the cavity surface of a mold or the surface of a forming blank, and it is shaped and transferred on the cavity face in the work for forming. CONSTITUTION:An unused transferred film 1 is fed onto the partitioned surface of a stationary platen 12 from a transferring film roll 2, and it is nipped between a film holder 10 and a film-fixing groove 14 and is fixed there. When the partitioned surface of the stationary mold 12 coincides with that of a movable mold 5, and the mold-closing operation is finished, heated and compressed air is fed into a cavity from the feeding path of molten resin, and then the film is stretched and is brought in contact with the lens surface of a stationary bushing 9. Then heated and molten acrylic resin is injected into the cavity and packed therein. The packed molten resin is compressed onto the lens surface of the stationary bushing through the transferring film 1. The form of a lens surface is shaped and transferred with high accuracy, thereby forming a plastic lens.
Patent JP-H11106235-A (JP)
Title: Composition for sealing
Inventor: SAKAGUCHI KOICHI
IPC: C03C8/24
Filed: 1997-10-03
Abstract: PROBLEM TO BE SOLVED: To obtain a sealing composition capable of densely sealing at a relatively low sintering temperature by using glass powder having a composition of PbO, B2 O3 , ZnO, SiO2 , Al2 O3 , Bi2 O4 , CuO and F in specific amounts, respectively, and specifying a cuprous ion/(cuprous ion + cupric ion) molar ratio in the glass. SOLUTION: This composition for sealing comprises glass powder having a composition comprising 70-80 wt.% of PbO, 5-12 wt.% of B2 O3 , preferably a B2 O3 /PbO ratio of >=0.12, 2-10 wt.%, preferably 3-6 wt.%, of ZnO, 0.5-3 wt.%, preferably 1-2 wt.%, of SiO2 , 0-2.0 wt.%, preferably 0-1.0 wt.%, of Al2 O3 , 3.0-7.0 wt.% of BiO3 , 0.5-5.0 wt.%, preferably 1-2 wt.%, of CuO, and 0.1-6.0 wt.%, preferably 1-5 wt.%, of F, and has a Cu<+> /(Cu<+> +Cu<2+> ) molar ratio of >=50%, preferably >=60%, in the glass.
Patent JP-H01111740-A (JP)
Title: Molding die for molded glass
Inventor: ISHIKURA CHIHARU
IPC: C03B11/08
Filed: 1987-10-27
Abstract: PURPOSE:To improve precision of a product and mold release characteristics by forming the surface layer of a molding die from substance consisting of at least two components of platinum and cobalt and also allowing carbide to be dispersed and incorporated in the components. CONSTITUTION:Respective surface layers 1b, 2b of molding dies 1, 2 are formed from substance which consists of at least two components, platinum (Pt) as a main component and about 5-45wt.% cobalt (Co). Furthermore one or more kinds of carbides selected from carbide such as TiC and SiC are dispersed and incorporated at a rate of about 0.02-30vol.% in the components of the surface layers 1b, 2b. Thereby denseness, hardness, strength and resistance to chemical reactivity of the surface layers 1b, 2b are improved and crystal growth in the structure is inhibited. Therefore, since precision of a molded face is stabilized while it is worked, precision of a product and mold release characteristics are improved.
Patent JP-2000097764-A (JP)
Title: Infrared detection element and infrared detector provided therewith
Inventor: WATABE YOSHIFUMI
IPC: G01J1/02
Filed: 1998-09-25
Abstract: PROBLEM TO BE SOLVED: To promptly detect infrared rays. SOLUTION: In an infrared detection element 40 sealed in an ambient gas, the element 40 comprises an infrared detection part 3 whose temperature changes by absorbing detected infrared, a support member 8 for supporting the infrared detection part 3, and confronting members 11, 20 having smaller voids 12, 21 than an average free excursion of the atmospheric gas at its intervals and provided with confronting faces 13, 22 confronting the infrared detection part 3, and the confronting members 11, 20 are constituted so as to directly extend from the support member 8 so that reverse faces 14, 23 on the opposite side to the confronting faces 13, 22 are formed with a substantially outermost face.
Patent JP-H01149742-A (JP)
Title: Direct water contact/addition method of linear olefin
Inventor: JIUSETSUPE METSUSHIINA
IPC: C07C29/04
Filed: 1988-10-28
Abstract: Linear olefins are converted into the corresponding secondary alcohols by treatment with methyl alcohol and a tertiary alcohol, in the presence of an acidic catalyst, at a temperature ranging from 120 to 200 DEG C. The product mixture substantially consists of the desired secondary alcohol and of the methyl ether of the charged tertiary alcohol. The reaction products can be easily isolated by fractionation, or, in some instances, the liquid product mixture can be used as such. Of particular interest is the direct hydration of n-butenes using tert-butyl alcohol as the tertiary alcohol. The obtained product mixture can be used as such, as an additive to methanol-containing gasolines for internal combustion engines.
Patent JP-H11111514-A (JP)
Title: Power for rare-earth bond magnet and its manufacture
Inventor: CHIYOU ISHIYUU
IPC: B22F1/02
Filed: 1997-10-03
Abstract: PROBLEM TO BE SOLVED: To inexpensively provide powder for rare-earth bond magnet, coated with a silicon dioxide film the compactness of which can be improved by improving the refractive index, without sacrificing the magnetic characteristics of a bond magnet and the oxidation resistance of which is improved. SOLUTION: Powder for rare-earth bond magnet is coated with silicon dioxide films. The absorption peak intensity ratio I (I=I1 /I2 , where I1 is the absorption peak intensity of an infrared absorption spectrum of 1,150-1,250 cm<-1> and I2 is the absorption peak intensity of an infrared absorption spectrum of 1,000-1,100 cm<-1> ) of the silicon oxide films between infrared absorption spectra of 1,150-1,250 cm<-1> and 1,000-1,100 cm<-1> is >=0.2 and the refractive index n<20> D of the films is >=1.435.
Patent JP-H03133732-A (JP)
Title: Sticker for adhesive sheet
Inventor: OKUDA KATSUYOSHI
IPC: B65C9/26
Filed: 1989-10-18
Abstract: PURPOSE:To peel even an adhesive sheet, a shape of which is changed in two dimensions, as an original form is left as it is held, and to suck the sheet to the head side by driving a valve under a half-opened state so that attraction sufficient for sucking and maintaining the adhesive sheet is acquired after the adhesive sheet sucked and held to a head is peeled from pasteboard by fully opening the valve. CONSTITUTION:When an operating pin 44 reaches a full-opening point P in the slant face 54a of a peeling drive cam 54, a groove 46 for suction and a suction hole 30 are communicated completely, and a fully opened state is attained as a spool valve 40. The fully opened state is attained at timing immediately before a rotary head 20 is brought into contact with an adhesive sheet 10. The adhesive sheet 10 is peeled from pasteboard 18 by specified peeling force by fully opening the spool valve 40, and a spool valve 50 is set under a half-opened state so that attraction sufficient for sucking and sustaining the adhesive sheet 10 by a sucking surface 26 in the rotary head 20 is obtained. Accordingly, specified peeling force can be ensured at all times in a plurality of each suction hole 30 formed to the sucking surface 26.
Patent JP-H07129444-A (JP)
Title: Inter-system data base utilizing method
Inventor: MURAKAMI EIICHI
IPC: G06F17/30
Filed: 1993-10-29
Abstract: PURPOSE:To provide an inter-system data base (DB) utilizing method for constructing the DB peculiar to possible respective systems while including the related DB and for making possible the backup of the DB corresponding to the inter-system transfer only of basic data and the basic data stored in an auxiliary storage device. CONSTITUTION:This method is composed of a system 1, system 2, processor 3, terminal equipment 4, man-machine function 5, data output function 6, data editing function 7, data input function 8, basic data buffer 9, working file buffer 10, system parameter table 11, DB managing information 12 and auxiliary storage device 13.
Patent JP-H02116763-A (JP)
Title: Fault point locator
Inventor: SUMIYA KENSAKU
IPC: H02H3/40
Filed: 1988-10-27
Abstract: PURPOSE:To measure a distance to a fault point accurately by detecting a fault mode by a voltage value and whether the fault is simple or multiple one by a current value when a transmission line fails to perform a computation for correction according to the type of the multiple fault. CONSTITUTION:A location computing means 1 is a widely known fault point locating circuit and uses an impedance computation. A multiple fault point detection means 2 identifies fault modes by a voltage value and the type of the faults, a single fault or a multiple fault by a current value. First, an insufficient voltage relay identifies two-phase and three-phase ground faults. In the case of the two-phase ground fault, when there is a current not exceeding a reference value in a combination of two set each out of the three phases, a ground fault occurs between two phases in the combination. When all currents exceed the reference value, fault is judged to be simple. In the case of the three-phase ground fault, when any current of three phases involved does not exceed the reference value, fault is judged to be a three-phase ground one: when it exceeds the reference value, fault is judged to be simple. Based on the result thus obtained, a correction processing is performed by a correction computing means 3 for an accessed value of the means 1.