baber/WOPTO huggingface dataset:
Patent JP-H02284587-A (JP)
Title: Switching mode electric source
Inventor: LEONARDI GIOVANNI MICHELE
IPC: H02M3/28
Filed: 1990-03-06
Abstract: PURPOSE: To decrease the level of an audible noise during wait operation by controlling switching configuration in the manner of burst mode during wait mode operation. CONSTITUTION: The wait operation is started by operating a switch mode power source 200 in a low power operating mode. A transistor Q2 is cylically triggered so as to be switched by burst mode operation at an up ramp section in the half wave rectifying voltage of a signal V7 . A capacitor C3 is connected through a diode D2 to a positive feedback signal path and charged by a positive current i5 . Therefore, a voltage v6 is gradually increased and a conduction period in each cycle is gradually prolonged. As a result, a switching frequency during a burst mode period is gradually changed or decreased. Thus, the audible noise level during wait operation is decreased.
Patent JP-2000252402-A (JP)
Title: Semiconductor device, mounting method thereof and electronic device
Inventor: INABA KICHIJI
IPC: H01L23/50
Filed: 1999-03-04
Abstract: PROBLEM TO BE SOLVED: To prevent generation of whiskers and short circuit between leads which is to be caused by the whiskers, by covering an external terminal with a tin film and covering the tin film with a tin alloy film. SOLUTION: A semiconductor chip 1 in which various kinds of elements are formed on a main surface of a semiconductor substrate composed of single crystal silicon or the like and connected by using a wiring layer and a specified circuit is constituted is fixed on a tab 2. The semiconductor chip 1 and inner leads 3a of leads 3 are connected by using bonding wires 4. The semiconductor chip 1, the tab 2, the inner leads 3a and the bonding wires 4 are sealed with a sealing member 5 composed of epoxy resin. Outer leads 3b of the leads 3 are stretched from four edges of the sealing member 5 to the outside. The outer leads 3b are subjected to surface treatment and covered with tin films 6 (purity is at least 99%, and thickness is 5-20 μm) in order to increase solder wettability.  The tin films 6 are covered with tin alloy 7 containing other metals (at least 2% of metals such as Cu, Ni, Zn, Ag, Bi, In and Sb are contained as other metals, and thickness is 0.2-2 μm).
Patent JP-H10249555-A (JP)
Title: Multi-layer electroslag welding method
Inventor: HAYAKAWA NAOYA
IPC: B23K25/00
Filed: 1997-03-11
Abstract: PROBLEM TO BE SOLVED: To provide a multi-layer electroslag welding method, which, with a single electrode, is capable of execution without deteriorating a mechanical characteristic in welding extremely thick steel materials. SOLUTION: A gradient is provided preliminarily along the laminating direction L on the joining face 1a of a diaphragm 1, with the face 1a abutted on the joining face 2a of a steel plate 2 to form a groove. Then, a water-cooled copper rod 4, a water-cooled reinforcing patch, is inserted into the groove, moved horizontally to the right, and applied against the steel plate 2 and the diaphragm 1. After that, electroslag welding is performed inside a groove A on the side of a narrow root gap in the gradient position, among the grooves divided by the copper rod 4. Then, with the water-cooled copper rod 4 removed from inside the groove, electroslag welding is carried out for the groove B part.
Patent JP-S56152447-A (JP)
Title: N-dimethylbenzyl-tert-butylacetamide derivative, its preparation, and herbicide comprising it as active ingredient
Inventor: KIRINO OSAMU
IPC: C07C231/02
Filed: 1980-04-28
Abstract: NEW MATERIAL:A compound shown by the formula I (R is methyl, ethyl, or n- propyl; X is ethyl, n-propyl, or isopropyl).  
     EXAMPLE: N-(α,α-Di-methyl-p-ethylbenzyl)-α-ethyl-tert-butylacetamide.  
     USE: A herbicide. Having improved effect against perennial cyperaceous weeds, and high selectivity for main crops. Having improved effects against weeds in plowed fields, e.g., a barnyard grass, large crab-grass, etc. and weeds in paddy fields, e.g., bulrush, arrow head, etc.  
     PROCESS: A compound shown by the formula II or its reactive derivative is reacted with a compound shown by the formula III, to give a compound shown by the formula I. The reaction is carried out in a solvent, e.g., benzene, etc. or in the absence of a solvent, and, if necessary, under heating or cooling. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S55148166-A (JP)
Title: Manufacture of static recording head
Inventor: MATSUURA TADASHI
IPC: B41J2/395
Filed: 1979-05-09
Abstract: PURPOSE:To provide a durable static recording head by a method wherein an insulation coating copper wire having a flat cross section is wound around a winding jig disposing with a regular spacing thereof to pour resin for molding. CONSTITUTION:An electric wire which is made of rolling an insulation coating copper wire having a circular cross section is wound around the winding jigs 14, 24 by disposing with a regular spacing respectively. Next, after the inlets of both jigs 14, 24 are joined together by piercing the pins 29, 30 through the holes 32, 33, the resin is poured from the resin inlets 28, 28. After the resin is solidified, the wound electrode wire is cut along the slits 43, 44 provided for the jigs 14, 24 to open the jigs 14, 24 for obtaining the blank products of molded head. The root of the lead wire extended from the top of blank molded product thereof is cut, the top face thereof is flattened to finish the outer surface thereof for obtaining the static recording head.
Patent JP-H06252885-A (JP)
Title: Spread spectrum signal receiver
Inventor: OE ICHIRO
IPC: H04J13/00
Filed: 1993-02-22
Abstract: PURPOSE:To prevent a phase locked loop from being locked in mistake with a delay wave due to multi-path when synchronization is acquired with the sliding correlation method. CONSTITUTION:A frequency fPN2 of a receiver side PN code generating clock signal CK2 oscillated from a VCO 32 at synchronization acquisition is set lower than a frequency fPN1 of a sender side PN code generating clock signal CK1. Thus, even when a multi-path takes place, since the receiver side PN code PN2 is delayed from the sender side PN code PN1 relatively, the code PNs is coincident early with the sender side PN code PN1 of a direct wave and then synchronization acquisition is executed. When the synchronization acquisition is finished, a switch 40 is thrown to the position of a contact (b) to close a delay lock loop 44, which maintains the synchronization.
Patent JP-S53141562-A (JP)
Title: Voltage-frequency converter circuit
Inventor: TAKAYAMA TOMOTOSHI
IPC: H03K7/06
Filed: 1977-05-17
Abstract: PURPOSE: To realize a low-cost voltage-frequency converter circuit by constituting a comparator using more than one inverter (CMOS inverter) of a complementary MOS integrated circuit. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H07244475-A (JP)
Title: Slide cover buffer device of keyboard musical instrument
Inventor: NAKANO YOSHIUE
IPC: G10H1/32
Filed: 1994-03-02
Abstract: PURPOSE:To provide the slide cover buffer device of the keyboard musical instrument which smoothly stop a slide cover at a storage position and smoothly draws it out to a drawing-out position with simple structure. CONSTITUTION:This slide cover buffer device of the keyboard musical instrument is equipped with the slide cover 9 which is flexible and constituted slidably between the drawing-out position where a keyboard part 8 is covered and the storage position where the cover is stored in a musical instrument main body 2 and a spring 11 which abuts on the lower end of the slide cover 9 from below and supports the slide cover 9 at the storage position, and buffers the slide cover 9, pressed down by utilizing its own weight while changing a laterally fallen attitude at the drawing-out position to the vertical attitude at the storage position from the rear end part, by the spring 11; and the spring 11 is composed of a single thin and long leaf spring and has its base end fixed to the musical instrument main body 2 and extends slantingly upward in a free state.
Patent JP-S51133092-A (JP)
Title: Paper money check machine
Inventor: KOSAKA KAZUTOSHI
IPC: G07D7/00
Filed: 1975-05-14
Abstract: PURPOSE: To reject one type of paper money which is inserted during returning another type of paper moneys. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-H11258350-A (JP)
Title: Non-contact surface contamination inspection device and method
Inventor: FUKAZAWA TAKUJI
IPC: G01T1/169
Filed: 1998-03-09
Abstract: PROBLEM TO BE SOLVED: To provide a non-contact surface contamination inspection device and method for inspecting surface contamination without contact and without damaging a paint film that is painted on a base material to be inspected and a surface to be inspected, for reducing such secondary waste as a filter and a filter where a contaminant as seen in a conventional contamination inspection adheres to, and for preventing a contamination area from spreading. SOLUTION: A contaminant 3 adhering to the surface of an inspection target 2 is allowed to leave the inspection target 2 in the form of fine particles due to the application of laser beams from a laser beam application means 4, the eliminated contaminant 3 is directly captured by a solid capturing member 18, radiation that is emitted from the captured contaminant 3 is measured by a radiation measuring means 20, the surface contamination site and the surface contamination density of the inspection target 2 are inspected without any contact, and the contaminant 3 adhering to the capturing member 18 is allowed to leave by a capturing member reproduction means 24 for reproducing the capturing member 18 after the measurement of radiation is completed.
Patent JP-S52140272-A (JP)
Title: Lead frame for mounting of semiconductor element
Inventor: SANO TADASHI
IPC: H01L23/50
Filed: 1976-05-18
Abstract: PURPOSE: To prevent the disconnection caused by improper positioning at the junction work time by putting marks on the lead frame. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H03259476-A (JP)
Title: Head positioning circuit and its method
Inventor: TSUKAGOSHI SHINICHIRO
IPC: F02B75/02
Filed: 1990-03-07
Abstract: PURPOSE:To converge a transient response quickly by slowing down a switching timing from the speed mode into the position mode in a seek estimated to call for a large transient response and outputting a mode switching time signal so as to reduce the rush speed to the position mode. CONSTITUTION:A mode switching time selection circuit 3 receiving an object track signal 1 outputs a mode switching time signal 4 by taking a transient response depending on the seek condition such as a force constant KF, seek length, outer circumferential, inner circumferential seek, forward seek and reverse seek into account based on the relation between an object position and a current position. The normal mode changeover is implemented by using a difference 0 signal 2 inputted by 1/2 cycle before the object position, and in the case of a seek whose transient response is estimated to be large, the switching timing is retarded and the mode is switched into the position mode after the head is sufficiently decelerated thereby decreasing the speed at rush of the position mode. Thus, the transient response is quickly converged.
Patent JP-H07257345-A (JP)
Title: Detecting device of antiskid brake control device for trailer
Inventor: YABE HIDEO
IPC: B60T8/88
Filed: 1994-03-28
Abstract: PURPOSE:To reduce the number of part items of an ABS control device in a tractor and trailer vehicle as much as possible to reduce the cost, and improve the assembling property to the vehicle. CONSTITUTION:A trailer information circuit 39 is provided in a tractor ABS controller 17. When an ignition switch is ON, the trailer information circuit 39 lights an information lamp 36. When a trailer ABS control device is connected to a tractor ABS control device when a brake switch 35 is ON, the information lamp 36 is extinguished. When the trailer ABS control device is not connected to the tractor ABS control device, however, the trailer information circuit 39 keeps the lighting state of the information lamp 36 when the brake switch 35 is ON. Thus, the number of part items can be reduced.
Patent JP-S60200239-A (JP)
Title: Data reader for film cartridge
Inventor: TAKARADA TAKEO
IPC: G03B7/24
Filed: 1984-03-23
Abstract: PURPOSE:To read coded data without any erroneous decision by detecting the coded data by comparing a signal from a detection electrode which contacts a part in a conductive or nonconductive state with signals from detection electrodes corresponding to other bits. CONSTITUTION:Plural bits 1B-12B for coded data are provided on the outer peripheral surface of a film cartridge 1 in a matrix, and the respective bits are an electric conductive part or nonconductive part corresponding to specific data. Detection electrodes 11-16 which contact bits 1B-12B and a detection electrode 17 which contacts a nonconductive surface MP when the cartridge 1 is loaded are provided to a camera side. The electrode 17 is connected to plus-side terminals of comparators 22-26 in common and also connected to a power source VCC through a resistance R0, and electrodes 12-16 are connected to minus-side terminals of the comparators 22-26 and also connected to the power source VCC through resistances R1-R5; and the electrode 11 is grounded. Consequently, outputs of the comparators 22-26 are used to decide accurately on a code signal of, for example, 11010 indicating film sensitivity.
Patent JP-S60203742-A (JP)
Title: Hydraulic control device for hydraulic shovel
Inventor: MIKI MASATOSHI
IPC: E02F9/22
Filed: 1984-03-27
Abstract: PURPOSE:To regenerate energy of return oil from a hydraulic cylinder and to prevent the generation of vacuum in the hydraulic cylinder, by a method wherein the pressure oil discharged from a hydraulic pump is fed to the hydraulic cylinder through a logic valve being electronically controlled. CONSTITUTION:Cylinders 5, 6, and 7 are coupled to logic valves 20, 21, and 22, each formed with 4 poppet valve-shaped elements, and each element is opened and closed by means of a signal from a controller 23 according to signals from altitude detectors 27, 28, and 29 mounted to a pivotally-securing point of each arm. When a boom 2 is lowered under its own weight, elements 20a and 20b are opened by means of a signal from the controller 23, and return oil from the chamber on the head side of the boom cylinder 5 is fed to the chamber on the rod side of the boom cylinder 5 from an element 20b through an element 20a to regenerate energy of the return oil. Further, a working velocity is controllable, the opening of the element to the chamber on each side produces a value of a working area ratio, and this prevents vacuum from being generated in a chamber on the feed side.
Patent JP-S59183499-A (JP)
Inventor: SHIMIZU OSAMU
IPC: G06M7/00
Filed: 1983-04-01
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H07265716-A (JP)
Title: Coating of metal carrier with solder material
Inventor: SUGIMOTO TAMOTSU
IPC: B23K1/00
Filed: 1994-03-28
Abstract: PURPOSE:To simply and uniformly coat a metal carrier with a solder material in producing the metal carrier used in a catalyst converter. CONSTITUTION:Strip-like metal corrugated and flat plates are wound to form a multiple cylindrical core part 21 and a cylindrical body 23 is attached to the outer periphery thereof to provide a solder material storage part 25 on the side of one end surface 21a of the core part 21 and, subsequently, a gel-like solder material 37 is stored in the solder material storage part 25 to be sucked from the other end surface 21b of the core part 21.
Patent JP-S62273120-A (JP)
Title: Frame of combined harvester and thresher or the like
Inventor: MATSUURA NORIO
IPC: A01D41/12
Filed: 1986-03-14
Abstract: PURPOSE:To improve safety by connecting an upper body frame to a lower travelling body by a vertical discharge pipe and providing at the upper end of the discharge pipe a pan for receiving fuel overflowing from a tank and guiding the fuel into the discharge pipe. CONSTITUTION:A discharge pipe 3 supporting a fuel tank 4 is also used as a member for connecting a body frame 1 to a travelling body 2, and a tensioner 9 for applying tension to a transmission belt 7 trained between a motor 6 and a transmission case 8 is carried by the discharge pipe 3. A pan 5 is provided at the upper end of the discharge pipe 3, so that fuel overflowing from the fuel tank 4 may be discharged onto the ground through the discharge pipe 3. Thus constructed, no connecting member is required, and overflowing fuel is led onto the ground, assuring improvement of safety.
Patent JP-2000255350-A (JP)
Title: Front car body structure of vehicle
Inventor: IWAMOTO TATSUHIKO
IPC: B60R19/40
Filed: 1999-03-04
Abstract: PROBLEM TO BE SOLVED: To efficiently relieve impact by bringing down an obstacle onto a hood at collision time by projecting a movable member up to a second position in front of and lower than the tip position from a first position in the rear of a vehicle lengthwise directional tip position of a bumper when detecting or anticipating a collision with the obstacle. SOLUTION: An arm 5 projecting while rotating up to a position (a second position) in the rear of a tangent connecting the edge on the tip of a hood 8 and a tip position of a bumper 6 in front of and lower than the tip position from a normal time housing position (a first position) in the rear of a vehicle lengthwise directional tip position of the bumper 6, is rotated by a driving mechanism composed of a piston mechanism 9, a rack 10 of the tip part and a pinion 11 on the basis of a signal from a collision detecting sensor 2. Thus, since an obstacle and the arm 5 contact with each other in the first place at collision time to the obstacle, the obstacle can be reliably brought down on the hood 8 more than when contacting with the bumper 6 in the first place to thereby relieve impact applied to the obstacle.
Patent JP-2000255069-A (JP)
Title: Ink jet recording head and manufacture thereof
Inventor: FUJIMORI NATSUO
IPC: B41J2/055
Filed: 1999-03-04
Abstract: PROBLEM TO BE SOLVED: To obtain a highly accurate ink jet recording head in which durability against various kinds of ink is enhanced by making an ink delivery opening in a substrate serving as a nozzle plate, bonding a reservoir plate to the ink delivery opening and then bonding it to a plate arranged with a piezoelectric element thereby constituting a head section. SOLUTION: An etching resist 2 is applied to the surface and rear surface of a nozzle plate substrate 1 and dried. The etching resist 2 of specified dimensions is then removed only from the positions 4, 5 on the surface and rear surface of the substrate 1 where nozzles are bored and, at the same time. An ink delivery opening, i.e., a nozzle hole 6, is formed. After a thin gold or copper film 8 is formed on the ink delivery side face of the nozzle hole 6, fluorinated alkane thiol 9 is adsorbed to that face and a reservoir plate 11 is bonded to the face on the opposite side. Furthermore, a plate 12 arranged with a piezoelectric element and a delivery energy generating element are bonded to the plate 11 thus constituting a head section.
Patent JP-H10251748-A (JP)
Title: Production of valve spring excellent in durability
Inventor: MIKURA MASAAKI
IPC: C22C38/48
Filed: 1997-03-12
Abstract: PROBLEM TO BE SOLVED: To reduce the energy to be projected, to reduce the damage of equipment and the wear of the end of a coil spring and to increase its fatigue strength and durability by using cut wire having specified hardness, using cut wire having specified diameter in primary shot peening and using cut wire having specified small diameter in secondary shot peening. SOLUTION: Oil tempered steel wire is used as elemental wire, which is subjected to coiling and is subjected to nitriding treatment to form into a valve spring. This valve spring is supported so as to be rotatable around the center axis of the coil. In this state, cut wire having 650 to 850Hv and 1.0 to 0.6mm diameter is projected, and primary shot peening is executed. Next, cut wire having the same hardness and 0.4 to 0.2mm diameter is projected in a tumbler shotting machine, and secondary shot peening is executed. It is preferable that the projecting rate in the primary cut wire is regulated to 70 to 90m/sec and the projecting rate in the secondary cut wire is regulated to 50 to 70mm/sec. In each stage, projection for about 15min. is required.
Patent JP-H07268738-A (JP)
Title: Sheath-core type conjugate yarn
Inventor: TSURUTA YASUNARI
IPC: D02G3/04
Filed: 1994-03-28
Abstract: PURPOSE:To obtain yarn made of aromatic polyamide yarn having frictional melting resistance and cutting and scratching resistance and excellent dyeability, fastness to dyeing and light resistance. CONSTITUTION:This sheath-core type conjugate yarn comprises a core component consisting essentially of an aromatic polyamide yarn and a sheath component composed of a tape-like polyester film wound on the core component. In general, the width of the polyester film is preferably 1-10 mm and the thickness is properly 1-10mum. The amount of the core component is preferably 5-80wt.% and that of the sheath component is preferably 20-95wt.%.
Patent JP-2000258725-A (JP)
Title: Projection optical system
Inventor: NOMURA YASUYUKI
IPC: G02B27/18
Filed: 1999-03-05
Abstract: PROBLEM TO BE SOLVED: To provide a projection optical system capable of preventing the temperature rise of a display element and its peripheral equipment by preventing returning light and obtaining a desired projection image. SOLUTION: This projection optical system is equipped with plural DMDs 3G separating illuminating light in a corresponding wavelength region by emitting light in different direction in the case of image light for projecting an image and in the case of needless light, a color synthesis prism 6 synthesizing the light emitted from plural DMDs, and a projection lens guiding the image light synthesized by the prism 6 to a projection surface, and the prism 6 is constituted of plural prism blocks including prism blocks 61 to 63 having dichroic surfaces 61a and 62b.  In such a case, a dichroic film having characteristic that the light is optimized to the light beam having the same incident angle as the image light is formed in an area at which the image light arrives on the dichroic surface and a dichroic film having characteristic that the light is optimized to the light beam having the same incident angle as the needless light is formed in an area at which the needless light arrives on the dichroic surface.
Patent JP-H11262208-A (JP)
Title: Stator coil for dynamoelectric machine
Inventor: TSUKIJI MAKOTO
IPC: H02K3/34
Filed: 1998-03-10
Abstract: PROBLEM TO BE SOLVED: To obtain the stator coil of a dynamoelectric machine which enables the improvements of non-destructive electrical characteristics and a voltage application life. SOLUTION: A strand conductor bundle 13 composed of bundled strand conductors 11 to which strand insulations 12 are applied, a composite tape 14 which is composed of a semiconductive tape 15 and a low resistance member 16, which is formed continuously along the surface of the tape 15 in its longitudinal direction, has a lower resistivity than the tape 15 and is wound around the strand conductor bundle 13 to be brought into contact with one of the strand conductors 11 and a ground insulating layer 17 which is formed, so as to envelope the strand conductor bundle 13 with the composite tape 14 therebetween are provided, impregnated with thermosetting resin and cured integrally.