baber/WOPTO huggingface dataset:
Patent JP-2000216680-A (JP)
Title: Improved oversampling sigma delta modulator
Inventor: KAKU SHOEI
IPC: H03M3/02
Filed: 1999-01-14
Abstract: PROBLEM TO BE SOLVED: To obtain an oversampling sigma delta modulator which has a sampling frequency being sufficiently higher than an input signal frequency by improving the existing MASH architecture by using a time division concept. SOLUTION: A switch sw1 first decides what an input to a modulator is (X(z) or -Q1 (z)). If X(z) is an input, an integrator int1 is selected by a switch sw2. Otherwise, an integrator int2 is selected. In the 1st stage operation, the integrator int1 integrates difference between the input X(z) and a feedback signal, supplies the 1st stage output generated by the output terminal of a quantizer 30 to a delay circuit 50 to add it to an output from a differentiator 10 in the 2nd stage operation. In the 2nd stage operation, the integrator int2 integrates difference between a quantization error of the 1st stage and the feedback signal and supplies the 2nd stage output generated by the output terminal of the quantizer 30 to the differentiator 10.
Patent JP-S58131475-A (JP)
Title: Seal packing of steel pipe hydraulic pressure tester
Inventor: EGUCHI MASAMI
IPC: G01N3/12
Filed: 1983-01-20
Abstract: PURPOSE:To make it possible to obtain the sufficient return property and sealing effect of a seal packing by making the outer diameter of the original form of the seal packing 2-10% larger than a packing chamber diameter and making the inner diameter of the seal packing to have the desired size when it is housed in the packing chamber. CONSTITUTION:A pipe 6 to be tested is inserted through a nut 2 and a seal packing 3, its tip is fitted in the fitting part of a test head body 1, and said pipe is tightened while driving the nut 2 and pre-compressing the packing 3. The outer diameter of this packing 3 in its original form before it is housed in a packing chamber 1a is made 2-10% larger than the diameter of said packing chamber 1a, and its inner diameter is determined to have a desired size, i.e., a size where the pipe 6 can be inserted through when said packing 3 is housed in the packing chamber 1a. This packing 3 is pre-compressed when it passes through a tapered part 7 by screwing the nut. Further, in the internal periphery of the packing 3 an annular coil spring 9 is buried to prevent the protrusion of an internal periphery corner of the packing. With this pre-compression the sufficient return property and sealing effect of the packing can be obtained.
Patent JP-S58126828-A (JP)
Title: Novel polyalkylene ether glycol
Inventor: MOTOI MASATOSHI
IPC: C08G65/00
Filed: 1982-01-22
Abstract: NEW MATERIAL:A poly2-methyl-1,3-propylene ether glycol of the formula (n is <=2). USE:Soft segments in elastomers, various lubricants, a raw material for cosmetics or medicines, raw material for aqueous paints, adhesives, cellophane, printing inks, abrasives, surfactants, etc., additives and raw material for alkyd resins. PROCESS:2-Methyl-1,3-propanediol is reacted with acetyl chloride to give 3- chloro-2-methylpropyl acetate, which is then subjected to the ring closure under alkali fusion to afford 3-methyloxetane. The resultant 3-methyloxetane is then subjected to the ring opening polymerization in the presence of a catalyst, e.g. HCl, H2SO4, H3PO4, HClO4, acetic acid, chlorosulfonic acid or benzenesulfonic acid, and the resultant polymer is hydrolyzed to give the aimed compound of the formula.
Patent JP-S56106497-A (JP)
Title: Piezoelectric speaker
Inventor: MAEDA KIYOUICHI
IPC: H04R17/00
Filed: 1980-01-28
Abstract: PURPOSE:To extend the frequency band of a piezoelectric speaker to a low frequency band, by connecting almost the center part of a piezoelectric oscillator to a large mass supported by a spring member via a coupling member. CONSTITUTION:The piezoelectric oscillator 1 is formed by sticking the piezoelectric elements 3 and 4 on the upper and lower faces holding the diaphragm 2 between. The diaphragm 2 is put and fixed on the stage part 5a at the upper corner inside the cylindrical case 5. The load mass 7 is hanged and supported by several spring members each one end of which is adhered around the lower part of the case 5. The mass 7 is connected to almost the center part of the lower face of the oscillator 1 via the coupling member 9. The lower end part 6a of the cone 6 touches the area near the node of the oscillating motion of the oscillator 1, and the upper end part of the cone 6 is adhered to the upper end part of the cone support part 5a. The oscillator 1 serves as a disk to support the center by the effect of installation of the mass 7, thus lowering the resonance frequency.
Patent JP-H03212650-A (JP)
Title: Binary toner for electrophotography
Inventor: KUSUMOTO TORU
IPC: G03G9/08
Filed: 1990-01-18
Abstract: PURPOSE:To improve the flowability and aggregation resistance of a toner, to also improve the replenishability and shelf stability and to prevent the deterioration of the fixability by sticking polyolefin to the surface of the toner. CONSTITUTION:Polyoefin is stuck to the surface of a binary toner for a devel oper contg. at least a resin such as a styrene-acrylic copolymer and a colorant such as carbon black. Low mol. wt. polypropylene or low mol.wt. polyethylene is preferably used as the polyolefin. The toner preferably contains 50 cumulative vol.% particles of 7.0-9.0mum diameter, <=3wt.% particles of <=4mum diameter and <=1wt.% particles of >= 16 mum diameter.
Patent JP-H08201742-A (JP)
Title: Mach-zehnder type light intensity modulator bias voltage control circuit
Inventor: SERIZAWA HIDEYUKI
IPC: G02F1/03
Filed: 1995-01-24
Abstract: PURPOSE: To always limit the bias voltage to light emission logic corresponding to an α parameter positive/negative code conversion signal and to stably control a light intensity modulator output light by using a limit circuit suppressing a bias voltage control circuit output value to a specified range for a Mach- Zehnder half-cycle voltage. CONSTITUTION: The limit circuit 1 setting an output range of a bias voltage value Vb applied to a light intensity modulator 5 to ±1/2 or below of the half- cycle voltage Vπ around a light emission logic decision voltage selection circuit output value is provided between a logic selection circuit 2 and a bias voltage application circuit 3. Thus, a mean light output detection circuit output voltage Vb is controlled to one setting solution Vb respectively always like Vb=0 (v) before light emission logic inversion, Vb=-Vπ(v) after the light emission inversion so as to be stabilized to a target value C, and it is controlled by the light emission logic matching with the α parameter positive/negative code conversion signal even when the change, etc., in the quenching characteristics of the light intensity modulator 5 occurs.
Patent JP-2000202450-A (JP)
Title: Alkaline ionized water producer
Inventor: MATSUO NAOKI
IPC: C02F1/46
Filed: 1999-01-18
Abstract: PROBLEM TO BE SOLVED: To prevent water leakage from a calcium container at a time of calcium replenishment with a simple and inexpensive structure and to enable to replenish calcium easily. SOLUTION: In a calcium feed part 200 of an alkaline ionized water producer, a valve device 202 is provided in a water path inside a calcium addition cylindrical container, and when a cap is opened at a time of replenishing the calcium, the valve device 202 clogs a calcium container opening part, linked with a displacement of a member of the cap, etc. Thus, water leakage, etc., due to back flowing water are prevented, and without requiring a special operation, etc., the calcium can be easily replenished.
Patent JP-S63180458-A (JP)
Title: Polishing
Inventor: NAGASE NOBORU
IPC: B24B19/08
Filed: 1987-01-17
Abstract: PURPOSE:To prevent the leaving of the shift path of a grindstone in the pattern form on a finished surface in the play back polishing by executing a process in which the grindstone is shifted on a desired path by the manual operation and the shift path is input into a memory means and a process for shifting the grindstone along the polishing path deflecting by a prescribed quantity from the memorized path. CONSTITUTION:The teaching mode is selected by a mode selecting switch 15, and the shift direction of a grindstone 9 is set by a plane selecting switch 16. After a starting switch 17 is operated, an operating member 25 is tilted in a desired direction, and a polishing path data is memorized. After the play back mode is set by the mode selecting switch 15, a metal mold 10 is polished on the basis of the above-described data. In this case, resetting is performed on the basis of the shift direction and shift quantity by a direction selecting switch 21 and a digital switch 22. Therefore, a worked surface 11 can be finished without leaving the shift pattern of the grindstone 9.
Patent JP-H11209537-A (JP)
Title: Silane-crosslinked olefin resin composition
Inventor: KAWAI TAMIO
IPC: C08K5/103
Filed: 1998-01-20
Abstract: PROBLEM TO BE SOLVED: To obtain the subject composition exhibiting improved extrusion moldability with suppressed gumming phenomenon, having improved crosslinking degree and useful as a wire coating material by compounding a silane- crosslinked olefin resin with a silicone and a methacrylate compound. SOLUTION: This composition is produced by compounding (A) preferably 100 pts.wt. of a silane-crosslinked olefin resin with (B) preferably 0.03-7 pts.wt. of a silicone and (C) preferably 0.03-7 pts.wt. of a methacrylate compound (e.g. trimethylolethane trimethacrylate). The component A can be produced by compounding and reacting a conventional olefin resin for wire-coating use, etc., with a silane compound, a radical generating agent and a silanol condensation catalyst. The electric wire coated with the composition has improved coating layer characteristics by the improvement of the crosslinking degree without degrading the appearance.
Patent JP-S58127035-A (JP)
Title: Clean working room
Inventor: TAKAHASHI KOUZOU
IPC: F24F3/16
Filed: 1982-01-25
Abstract: PURPOSE:To minimize spaces of area to be cleaned and ventilated for preserving a high degree of cleanliness, and simultaneously to protect other production lines from adverse effects by dirts produced during a maintenance work, with regard to a clean working room adapted to provide a clean working environment for the production of semi-conductors and the like. CONSTITUTION:A main passage unit 13 wraps a main passage 15 in a tunnel- like configuration, and cleans the main passage 15 by clean air discharged from an air cleaning element internally provided at a ceiling of the main passage 15. A production line unit 14 wraps a working section 16 adapted to install production line equipments therein and a passage section 17 connecting to the main passage 15 in a tunnel-like configuration independently by each production line, and can clean the working section 16 and the passage section 17 by discharging clean air respectively from an air cleaning element internally provided at their respective ceilings. A maintenance space 18 is defined between adjacent production line units and between the production line unit and a wall face of housing. Besides, the maintenance space 18 is accessible from a general room 3 without the need of passing the clean room.
Patent JP-H10209156-A (JP)
Title: Semiconductor device and its manufacture
Inventor: HOSHINO KAZUHIRO
IPC: H01L23/52
Filed: 1997-01-21
Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor device having a low electric resistance and high EM(electromigration) resistance and its manufacturing method. SOLUTION: On a barrier metal layer, a Cu-Ta film 15 contg. Ta of 0.5wt.% is formed with a cap metal layer formed thereon as a wiring layer 17', and it is etched by the hot RIE method and heat treated at about 450 deg.C for about 120min. in an H reductive atmosphere to precipitate Ta at the Cu grain boundary of the film 15. Since Ta hardly forms alloy with Cu, and has a low solid soln. degree to Cu crystals, Ta deposites in the above heat treatment. The precipitation of Ta suppresses the grain boundary diffusion to hardly create voids, thereby improving the EM resistance.
Patent JP-S58126738-A (JP)
Title: Method of freezing stripped soft shellfish individually
Inventor: MUTOU FUMIO
IPC: A23L17/40
Filed: 1982-01-23
Abstract: PURPOSE:Individuals of stripped soft shellfish are thrown in a freezing medium to freeze only their surfaces, then they are completely frozen in a freezing atmosphere, thus producing frozen product of high commercial value with no deformation of intrinsic shape of stripped shellfish. CONSTITUTION:Stripped shellfish such as raw oysters A are conveyed from the water tank 1 by means of a belt conveyor 2 so that these shellfish are scattered separately, then thrown in a freezing medium such as liquefied gas in the tank 4 separately. This throwing releases the load of the weight of shellfish themselves to restore their original shape. Then, the shellfish are frozen only on their surfaces and at this time they are taken out of the freezing medium 3 by means of belt conveyor 5, then completely frozen in the refrigerator 6.
Patent JP-H06219967-A (JP)
Title: Peptide-lipid derivative and liposome
Inventor: ISHIKURA TOYOAKI
IPC: A61P31/04
Filed: 1993-01-22
Abstract: PURPOSE:To provide a new peptide-lipid derivative useful as a metastasis- suppressing substance for cancer cell. CONSTITUTION:A lipid is bonded directly or via a linker to a peptide containing a sequence composed of Arg-Gly-Asp. The total polymerization degree of the amino acids in the peptide is <=20 and the lipid to be used for the production of the peptide-lipid derivative is preferably cholesterol and 8-18C alkyl group. The bonding of the lipid to the peptide containing the Arg-Gly-Asp sequence can be carried out e.g. by reacting an amino group or a carboxyl group of a peptide with a cholesterol derivative or an alkyl group having a functional group capable of forming a covalent bond with the functional group of the peptide. A liposome can be prepared by compounding the peptide-lipid derivative.
Patent JP-S60175701-A (JP)
Title: Gas engine
Inventor: PEETAA AA NOIKOMU
IPC: F01B29/10
Filed: 1985-01-23
Abstract: A gas engine with a gas supply device contains a substantially bell-shaped aluminum intermediate housing open on one side and provided with fins on the interior and exterior. A cylinder of the gas engine with good thermal conduction properties and a sleeve accommodating a pressurized gas container having good thermal conduction properties are fastened to this intermediate housing. A gas supply conduit leads from the pressurized gas container to the gas engine. A gas superheater conduit structure is in thermal communication with the intermediate housing and situated at the beginning of the gas supply conduit. The thermal unit formed jointly by the intermediate housing, the cylinder, the sleeve surrounding the pressurized gas container and the gas superheater conduit structure permits operation of the gas engine under all practically arising ambient temperatures without damage to the gas engine, since this thermal unit prevents the gas in the gas engine from condensing back to its fluid or even solid state.
Patent JP-S57123786-A (JP)
Title: Suppressor for chroma signal
Inventor: KURIBAYASHI MICHIO
IPC: H04N9/68
Filed: 1981-01-23
Abstract: PURPOSE:To obtain a more natural picture when a chroma signal suppressed compared with a picture obtained by linear suppression, by suppressing the chroma signal in an undesired range gradually. CONSTITUTION:Signals from the 1st level detector 1 which detects a luminance signal being below a predetermined level in a black direction and from the 2nd level detector 2 which detects the luminance signal being above the predetermined level in a white direction are supplied to a multiplier 3 together with a chroma signal ec. Then, an output signal obtained by gradually suppressing chroma signals below a predetermined black-directional suppression level and a above a predetermined white-directional suppression level from their suppression points appears at an output terminal T2. Namely, a black-directional and a white-directional period are suppressed ones in the unnecessary range of the chroma signal ec, and the suppression is performed not linearly, but gradually and slowly at the suppression point.
Patent JP-2000212970-A (JP)
Title: Method and device for carrying out digging out work by making use of opening settlement box
Inventor: REN SANRO
IPC: E02D23/08
Filed: 1999-01-18
Abstract: PROBLEM TO BE SOLVED: To provide a method and a device for carrying out digging out work capable of accomplishing work for deeply digging out by remote control and, at the same time, being safely and simply carried out. SOLUTION: A main body 1 capable of being rotated, contracted and moved is taken into a hollow site inside of a settlement box main body 6, and after it is properly fixed, a digging out claw 3 mounted to the bottom of the main body 1 is directly extended to the bottom of the settlement box main body 6 to dig our earth and sand. Then, the settlement box main body 6 is made to settle by its dead weight, and after the settlement box main body 6 is made to settle to a specific depth, the main body 1 is taken out, and the method is constituted of a process for piling another settlement box on the settlement box and a process for successively digging out earth and sand after the main body 1 is again mounted to the inside of the settlement box main body 6.
Patent JP-H02193558-A (JP)
Title: Ac rotary device
Inventor: KAWABATA YASUMI
IPC: H02K29/00
Filed: 1989-01-18
Abstract: PURPOSE:To improve efficiency by a method wherein an armature coil is arranged independently from other windings, arranged continuously, so as not to be intersected and four pieces of magnets, which is larger than the number of phase of three-phase AC by one, are arranged in the spaces of respective phases while converting the polarities of the same. CONSTITUTION:A plurality of slots 24a is formed on the inner peripheral surface of an armature core 24, forming an armature 22, and armature coils 20 are wound in the slots. The coil 26 is arranged independently from other coils, arranged continuously, so as not to be intersected. A plurality of permanent magnets 34 is arranged on the outer peripheral surface of a rotor core 32 while converting the polarities thereof alternately to form a field. The field is formed by arraying four pieces of permanent magnets, which means a number consisting of the number of phases 3 of 3-phase AC plus one, in every spaces of respective phases of the armature. According to this method, a magnetic field, produced by one set of winding, will never be cancelled by another magnetic field, produced by the other winding, and a magnetic resistance between the armature and the field is constituted so as to be small whereby a rotary armature, having a high efficiency, can be obtained.
Patent JP-H11268878-A (JP)
Title: Paper circulating device and image forming device
Inventor: TOMOE TETSUO
IPC: G03G15/00
Filed: 1999-01-18
Abstract: PROBLEM TO BE SOLVED: To improve space efficiency and to reduce the cost by removably arranging a paper circulating device constituted of a paper circulation path connecting the paper discharge port and the paper feed port of an image forming device and a paper feeding means circulatorily feeding paper sheets via the paper circulation path on the image forming device. SOLUTION: Paper sheets fed from the outside through a manual insertion paper feed port 12 are conveyed to an image formation section 16, and the paper sheets formed with an image by the image formation section 16 are discharged to the outside from a paper discharge port 19. A double-face copying conveyance unit 4 serving as a paper circulating device is removably fitted to this image forming device. The conveyance unit 4 is provided with a paper circulation path 43 connecting the paper discharge port 19 and the paper feed port 14 of the image forming device and a pair of conveyance rollers 38, 39 serving as a paper feeding means circulatorily feeding the paper sheets discharged from the paper discharge port 19 to the paper feed port 12 via the paper circulation path 43.  For double-face image formation, the paper sheets discharged from the paper discharge port 19 are circulatorily fed to the paper feed port 12 via the paper circulation path 43.
Patent JP-S60154919-A (JP)
Title: Operating device for mobile farm working machinery
Inventor: WATANABE ICHIROU
IPC: A01D69/00
Filed: 1984-01-20
Abstract: PURPOSE:To make a throttle so as to be operated to the high rotation side only in time of declutching, by installing a check interlocking mechanism in position between an operating clutch and a throttle mechanism, in case of the above captioned device for a combine or the like. CONSTITUTION:A traveling device 3 is driven by a motor 4 via an interlock 7, a clutch 2 and a transmission 8 or the like, while a working device 1 is driven via the clutch 2, and far working takes place by means of a throttle lever 12. At this time, even if the throttle lever 12 is made to try for operation to a high speed side, it fails to be set to the high speed side due to the presence of a checker 13 to be situated in position interlocking on-operation of a clutch lever 9 so that high speed driving is unpreventable. In addition, when the clutch 2 is set to disengagement, the traveling device 3 alone is interlocked whereby the checker 13 comes out of the range of rotation in the throttle lever 12, thus the high speed rotation is performable. With this constitution, proper operation is performable.
Patent JP-S60155501-A (JP)
Title: Purification of ammonia synthesis gas
Inventor: HIDAKI MORIHISA
IPC: C01B3/02
Filed: 1984-01-23
Abstract: PURPOSE:To raise separation ratio of H2, by purifying a raw material gas comprising H2 and excess N2 as main components by two stages of a replacing and adsorbing process and N2 adsorbing process. CONSTITUTION:A raw material gas comprising H2 and N2 in an amount more than a stoichiometric ratio in ammonia synthesis reaction based on H2 as main components, containing a small amount of CO2, CO, methane, Ar, steam, and methanol vapor is introduced from the line 21 into the adsorbing bed 1b saturated with N2, and steam or methanol vapor, CO2, and CO are completely adsorbed and removed. Most of methane and a considerable amount of Ar are adsorbed and removed. Part of a gas containing H2 and N2 which are not adsorbed is introduced through the line 23 into the succeeding adsorbing bed 1a, and N2 in the gas is adsorbed and separated. When the adsorbing bed 1a is saturated with N2, flow of the raw material gas from the line 21 is converted into a replacing and adsorbing process of the adsorbing bed 1a, and the adsorbing bed 1b is converted into a desorbing process of N2.
Patent JP-H07221517-A (JP)
Title: Dielectric coaxial resonator
Inventor: ATOKAWA SUKEYUKI
IPC: H01P1/205
Filed: 1994-01-31
Abstract: PURPOSE:To obtain a dielectric coaxial resonator in which the number of components is reduced and manufacturing man-hours are decreased and by which an inexpensive dielectric filter or the like is obtained. CONSTITUTION:A resonator hole 2 is formed in a dielectric block 1, an inner conductor 3 is formed on an inner circumferential face of the resonator hole 2 and an outer conductor 4 is formed on an outside of the dielectric block 1. The inner conductor 3 is separated from the outer conductor 4 on an open end face 1a and short-circuited with the outer conductor 4 on a short-circuit side end face 1b. A connection electrode 5 separated from the outer conductor and in continuity with the inner conductor 3 via a throughhole 6 is provided to a bottom face 1c being a mount face to a board of the dielectric block 1, and the dielectric coaxial resonator and a coupling circuit of a board or the like are directly connected by the throughhole 6.