baber/WOPTO huggingface dataset:
Patent JP-H0874006-A (JP)
Title: Precipitation hardening type stainless steel excellent in strength and twisting property
Inventor: MIYAKUSU KATSUHISA
IPC: C22C38/00
Filed: 1994-09-08
Abstract: PURPOSE: To develop a precipitation hardening type stainless steel for springs having high strength after aging treatment and excellent in twisting properties and punching workability by properly regulating the components in a stainless steel. CONSTITUTION: A precipitation hardening type stainless steel or a martensitic stainless steel for springs having a compsn. contg., by weight, <0.030% C, 0.5 to 2.0% Si, <0.40% Mn, <0.0020% S, 7.5 to 9.5% Ni, 12.0 to 16.0% Cr, <0.30% Cu, <0.015% N and <0.0005% O and furthermore contg. one or >=two kinds among <0.35% Ti, <0.40% Nb and <0.30% Al, in which the components are regulated so as to regulate the value of H expressed by the formula I to 0.20 to 0.70 and the value of I expressed by the formula II to 4.0×10<-4> or below, and contg., at need, <=3.0% Mo, and in which the content of Cu is reduced, the content of Ni is increased and the contents of S, C, N and O are reduced and having excellent properties in which the cleanliness prescribed by JIS. G0555 are regulated to <=0.010% is produced.
Patent JP-H03103831-A (JP)
Title: Liquid crystal display device
Inventor: FUJINAWA YUKI
IPC: G02F1/1365
Filed: 1989-09-19
Abstract: PURPOSE:To reduce the resistance of a wiring electrode without spoiling an element characteristic by constituting a non-linear element and a signal electrode of metals of the upper layer part and the lower layer part whose specific resistances are different from each other, and providing an insulator being different from an insulator for constituting the non-linear element. CONSTITUTION:The lower metal 17 of a signal electrode 15 and a non-linear element 20 consists of two layers, the lower layer 17a is formed by a metal whose resistance value is low, and as for the upper layer 17b, the same metal as a conventional one is used so that a satisfactory element characteristic is obtained. Subsequently, in the lower layer 17a of the lower metal 17, a first insulator 18a whose insulating property is high is installed, and a second insulator 18b by which a satisfactory element characteristic is obtained is installed on only the upper layer 17b on which a first insulator 18a is not set, of the lower metal 17, by which it is prevented that other part than a second insulator 18b contributes to the element formation. In such a manner, the wiring resistance of the signal electrode can be reduced without exerting the influence on the characteristic of the non-linear element.
Patent JP-H1186617-A (JP)
Title: Reflecting mirror and lighting system using this reflecting mirror
Inventor: YAMAMOTO SHOZO
IPC: F21V7/08
Filed: 1997-09-05
Abstract: PROBLEM TO BE SOLVED: To prevent the occurrence of light nonuniformity in an illuminating surface, such that the central part of the illuminating surface is dark, and the doughnut-like peripheral part is bright by providing a structure such that the light of a lamp set in the inner part reflected by the opening edge part of a reflecting mirror having an opening on the upper end side illuminates the center of the illuminating surface. SOLUTION: On the light emitted from the center point F of a lamp 5, the light reflected by an opening edge part (b) on the upper end of a reflecting mirror 1 reaches a point (d) on an illuminating surface 7 through the elliptic other focus F'. The light reflected by an opening edge part (a) on the lower end of the reflecting mirror 1 of the light emitted from the center point F of the lamp 5 reaches a point (g) on the illuminating surface 7 through the other elliptic focus F'. Accordingly, the light reflected between the opening edge parts (b) and (a) of the reflecting mirror 1 reaches between the point (d) and the point (b) on the illuminating surface 7. Thus, the light reflected by the reflecting mirror 1 can illuminate the whole illuminating surface 7, without causing light nonuniformity.
Patent JP-2001062735-A (JP)
Title: Rotary grinding wheel
Inventor: IRIE KENJI
IPC: B24D7/00
Filed: 1999-08-27
Abstract: PROBLEM TO BE SOLVED: To make the remarkable improvement of grinding/polishing performance compatible with the superior finishing of a surface to be polished, and to elongate the life by solidifying the woven fabric including inorganic compound fiber by a resin or the like, forming the same into the cylindrical shape, and providing an axial one end surface of the cylindrical member with a grinding and polishing working surface. SOLUTION: The rotary grinding wheel S is formed by laminating band- shaped woven sheets composed of inorganic compound fiber several times, and adhering them by a resin or the like to form a cylindrical member 1. One end surface 1a in the axial X direction of the cylindrical member 1 is dressed to form a grinding and polishing working surface on its approximately whole surface. The other end part in the axial X-direction of the cylindrical member 1 is fixed to the approximately disc-shaped holders 2, 3, and mounted on a grinding disc through the holders 2, 3. This rotary grinding wheel S is rotated while pressing the working surface shown as an upper edge in a drawing, to a surface to be ground and polished for the machining of an outer race of a bearing or the like, to grind and polish the surface with high accuracy, and the working life can be sufficiently elongated.
Patent JP-2000068644-A (JP)
Title: Manufacture of wiring board
Inventor: TAKAGI KOJI
IPC: H05K3/28
Filed: 1998-08-26
Abstract: PROBLEM TO BE SOLVED: To restrain filling failures when a lower blind through-hole is filled up with an upper resin layer in a so-called build-up technique where an insulating resin layer of permanent resin and a circuit pattern are successively formed on the surface of a circuit board. SOLUTION: Insulating resin is applied to the surface of a base 3 provided with blind through-holes 2 and then dried up for the formation of a first resin layer 4, and a crater-shaped recess 5 whose aspect ratio is smaller than that of the blind through-hole 2 is formed on the blind through hole 2. Furthermore, insulating resin is applied onto the upside of the first resin layer 4 and then dried out, for the formation of a second resin layer 6. When the second resin layer 6 is formed, insulating resin can be made to flow into the crater-shaped recess 5 without trapping air bubbles.
Patent JP-2001063601-A (JP)
Title: Four-wheel steering device
Inventor: HAGIHIRA SHINICHI
IPC: B62D113/00
Filed: 1999-08-27
Abstract: PROBLEM TO BE SOLVED: To provide a compact and lightweight rear-wheel steering mechanism for motor trucks having a rear-wheel steering mechanism acted with heavy load by preventing their rear wheels from steered at the time of stationary steering. SOLUTION: This steering device is provided with a load pressure sensor 8 for rear wheels to detect load pressure indicating output of a power cylinder 2 for rear wheels, and the load pressure sensor 8 is connected to a controller 4 for rear wheels. The controller 4 sets a control valve 3 for rear wheels at a neutral position to get output of the power cylinder 2 to be zero when the steering angle of rear wheels does not change in spite of the vehicle speed being 0 km/h and the load pressure being the specified pressure or above.
Patent JP-S61119007-A (JP)
Title: Manufacture of permanent magnet
Inventor: KAWANA KENICHI
IPC: C22C38/00
Filed: 1984-11-15
Abstract: PURPOSE:To enable to stably obtain the R-Fe-B permanent magnet having excellent magnetic characteristics by a method wherein two kinds of alloys of specific composition are pulverized respectively, and the obtained pulverized powder is mixed in such a manner that it is formed into the composition of an alloy. CONSTITUTION:(BH) mox of 25 MG.Oe or above, wherein material especially having the composition of R(Fe1-xBx)A (provided that one or two or more kinds of R:rare-earth of 0.05<=x<=0.2 and 5<=A<=6) which is considered desirable as an R-Fe-B permanent magnet from the view point of magnetic characteristics, is obtained. Besides, as a method to stably obtain the permanent magnet having the above-mentioned composition, the first alloy powder having six or more of A is used as the main component, the second alloy powder having five or more of A of the same material as the first alloy is added, they are compression-molded in a magnetic field, and a sintering process and a heat treatment are performed thereon. When A is less than five, the quantity of R is increased and coersive force is enhanced, but Br is lowered and it gives a disadvantage in respect of cost. On the other hand, when A exceeds six, the quantity of R is reduced, and coersive force is also decreased.
Patent JP-H03101965-A (JP)
Title: Ink jet head, ink jet unit, ink jet cartridge, ink jet device
Inventor: KAWAI JUN
IPC: B41J2/165
Filed: 1989-09-18
Abstract: PURPOSE:To facilitate wiping and capping by a method wherein a substrate is bonded with a top member on which recessed parts are provided for forming ink paths with the recessed part inside, and delivery ports are formed on a planar member which is formed integrally with the top member so as to extend both upwards and downwards from the end part of the top member. CONSTITUTION:A receiving port 1500 for supplying an ink to ink paths is formed by bonding a grooved top plate 1300 with a heater board 100. An orifice plate 400 extending both upwards and downwards from the end part of the top plate is formed integrally with the grooved top plate 1300. The body of the orifice plate 400 is determined to be 200mum in thickness to obtain a strength. Only the part of the orifices 41 is determined to be 10-50mum in thickness for the ease of forming orifices using a layer or the like. The orifice plate body is formed so that the thickness gradually becomes large from the part of the orifices 41 to the both end parts. Moreover, the both ends of the orifice train are determined to be 200mum as thick as the orifice plate body by taking a strength and an airtightness in capping into consideration.
Patent JP-H01251515-A (JP)
Title: Oxide high temperature superconductive wire material and manufacture thereof
Inventor: OKAYAMA AKIRA
IPC: H01B13/00
Filed: 1988-09-28
Abstract: PURPOSE:To increase the density of a high temperature superconductor and make a critical current density of 1000A/cm<2> or more possible by rolling flatly the cross sectional from of a wire material. CONSTITUTION:The wire material is a flat thin strap such that the upper and lower faces of an oxide layer appearing on the cross section vertical to the longitudinal direction of the wire material have a parallel part. The thickness of the oxide layer preferably ranges within 0.35-0.75 of the entire thickness of the obtained wire material, and particularly a thin strap having the entire thickness of the wire material less than 0.2mm is preferred. The metal layer has a thickness variable according to the shrinkage deformation of the oxide layer in sintering. The wire material preferably has an elasticity when used. In manufacturing, a metallic pipe is charged with an oxide having a superconductive characteristic and drawn, and then the resulting wire material is rolled by cool rolling so as to satisfy the scheme (t1-t)/t1X100>=90, wherein the cross sectional face before rolling is t1, and the entire thickness after rolling is t, followed by thermal treatment. Hence, an oxide superconductive wire material having an increased critical current density of at least 1000A or more per cm<2> can be obtained.
Patent JP-S60131911-A (JP)
Title: Device for holding electrode of vacuum degassing device
Inventor: NAKANISHI HISAO
IPC: C21C7/10
Filed: 1983-12-21
Abstract: PURPOSE:To prevent failure trouble of an electrode rod and to avert defective contact with butting by holding one end side of the electrode rod by means of a clamp in place of butting said side. CONSTITUTION:One end of a horizontally disposed carbon electrode rod 2 for heating the inside of a vacuum degassing vessel 1 is projected through the through-hole 3 of the wall of said vessel to the inside of the vessel. The projecting end of the rod 2 is placed on an electrode placing part which is provided to an approximately cylindrical body 7 of a clamping device 4 on the outside of the vessel and is formed with the semi-circular hollow groove equal to the radius of the rod 2. A piston shaft 19 is then extended by a fluid pressure cylinder to advance a branch pipe 16, thereby depressing a grasping piece 17 and pinching the projecting end of the rod 2 by means of the body 7 and the piece 17 from above and below. The projecting end is thus fixed and held. Then the need for pressing strongly the rod 2 in the axial central direction is eliminated and the bending stress acting on the rod 2 is considerably decreased. The failure trouble is considerably decreased and the problem occurring from the defective contact at the butt surfaces is solved.
Patent JP-H1065484-A (JP)
Title: Piezoelectric resonator
Inventor: YAMAZAKI TAKESHI
IPC: H03H9/46
Filed: 1996-08-23
Abstract: PROBLEM TO BE SOLVED: To obtain the piezoelectric resonator in which number of components is reduced and a Qm along with a characteristic requested for the product is obtained by providing an insulating layer between an electrode of an least one side and a piezoelectric ceramic substrate. SOLUTION: The resonator is provided with a square piezoelectric ceramic substrate 1, insulation layers 2, 3 formed on the entire surface on its both sides, and electrodes 4, 5 laminated on the entire surface on the insulation layers 2, 3. A PZT ceramic is used as a piezoelectric ceramic substrate 1 and a thin metallic film such as a nickel copper alloy is formed on both sides with sputtering. Then the substrate 1 is set in a heating furnace with an oxidation atmosphere, the metallic film is oxidized to form a non-conductor and to obtain the insulation layers 2, 3. Electrodes 4, 5 made of nickel copper alloy are formed on the insulation layers 2, 3 by sputtering. After the electrodes 4, 5 are formed, a DC high voltage is applied to conduct polarization processing thereby providing a piezoelectric characteristic to the substrate 1.
Patent JP-H04122116-A (JP)
Title: Balanced type output circuit
Inventor: ENOMOTO TETSUO
IPC: H03H11/32
Filed: 1990-09-13
Abstract: PURPOSE:To reduce switching noise or the like by outputting an analog signal from a 1st D/A converter means and an analog signal whose polarity is inverted from a 2nd D/A converter means as balanced outputs. CONSTITUTION:When a differential amplifier 21 being a general balance type input circuit receives an analog signal with noise intruded thereto (its level is S+N1) from a line amplifier 15 and an analog signal with noise intruded thereto (its level is -S+N1) from a line amplifier 19 via an output terminal 2, a cable 3 and an input terminal 4, the output level of the differential amplifier 21 is 2S+(N1-N2). Since the noise intruded in a D/A converter 13 and the noise intruded in a D/A converter 17 are in phase, they are cancelled together. Thus, the noise in the D/A converters such as switching noise is reduced.
Patent JP-S61119079-A (JP)
Title: Manufacture of thin film transistor
Inventor: HAYASHI HISAO
IPC: H01L21/265
Filed: 1984-11-15
Abstract: PURPOSE:To simplify the manufacturing process compared with the conventional methods by eliminating the necessity of carrying out a heat treatment for a solid-phase growth and a heat treatment for electrically activating the impurities for forming source and drain regions, separately as in the conventional methods. CONSTITUTION:A polycrystalline silicon film 4 is formed on a glass substrate 1 and an amorphous silicon film 3 is formed by ion implantation of Si<+>. A gate insulating film 8 consisting of an SiO2 film 5 and a gate electrode 7 consisting of an Mo film 6 are formed. By using the gate electrode 7 and the gate insulating film 8 as a mask, phosphorus for forming source and drain regions is introduced into a semiconductor thin film and a heat treatment is made. Thus the amorphous semiconductor thin film is grown by solid phase and impurities are activated electrically to form N<+> type source region 9 and drain region 10.
Patent JP-S60133628-A (JP)
Title: Method for manufacturing field ionization type ion source chip
Inventor: HORIUCHI TAKASHI
IPC: H01J37/08
Filed: 1983-12-21
Abstract: PURPOSE:To increase obtainable ion current by covering the surface of tungsten chip with silver and exposing the tungsten through removal of only the silver at the end point with field evaporation. CONSTITUTION:A fine lead of tungsten is electrolytically ground in the aqueous solution of KOH and an emitter chip having the end point with radius of curvature of several hundreds to several thousands of A can be obtained. The end point of this chip 1 is shaped by field evaporation using field ion microscope. Moreover, the entire surface of chip is vacuum evaporated with silver 2. Next, only the silver at the end of emitter is removed by field evaporation in order to expose the end point of tungsten. Thereby, the tungsten exposed at the end can effectively cooled with silver having high thermal conductivity and thereby a larger ion current can be obtained.
Patent JP-H0676312-A (JP)
Title: Tracking servo circuit
Inventor: TAMURA TAKEO
IPC: G11B21/10
Filed: 1992-08-18
Abstract: PURPOSE:To obtain a tracking servo circuit which can perform optimum tracking control in accordance with an optical information recording medium by measuring eccentric amount of the optical information recording medium and setting servo gain in accordance with measured eccentric amount, when the optical information recording medium is reproduced. CONSTITUTION:Eccentric amount of an optical disk is measured by counting the number of tracks crossing per an unit hour in a traverse signal counting circuit 15. A microcomputer 18 sets optimum servo gain in accordance with eccentric amount of the optical disk to a gain setting switching circuit 14 according to a program stored in a memory not illustrated based on a measured value by the traverse signal counting circuit 15.
Patent JP-S61120185-A (JP)
Inventor: TANAKA YOSHIAKI
IPC: G10L25/00
Filed: 1984-11-15
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-S6395656-A (JP)
Title: Semiconductor logic circuit
Inventor: SHIMIZU SHOICHI
IPC: H01L21/8222
Filed: 1986-10-13
Abstract: PURPOSE:To increase working speed while reducing the area of a gate by constituting a load element of a saturated resistance element having saturation characteristics. CONSTITUTION:In a semiconductor logic circuit with a load element stacked up on a depletion type FET conducting switching operation and a level shift stage level-shifting output potential, saturated resistors SR1, SR2 are used in place of FETs Q1, Q3. The saturated resistors SR1, SR2 are manufactured by forming electrodes 201 by a metal such as Al and constituted of GaAs. GaAs is used in the saturated resistors SR1, SR2 because the mobility of electrons suddenly lowers when an electric field applied between the electrodes 201 is brought to several KV/cm(3-5KV/cm) in properties peculiar to GaAs. (the time of VF in the graph) Accordingly, the element works as constant current load between both terminals of the element.
Patent JP-H04218951-A (JP)
Title: Tie bar-cutting process of resin-sealing type semiconductor device
Inventor: OGURI YOSHIHISA
IPC: H01L21/56
Filed: 1990-09-11
Abstract: PURPOSE:To improve a product quality without damaging a lead by providing a die punch with a tapered cutting part and the vertical part of the die punch with a grooved cutting part and by constituting the tip of said die punch so that the tip protrudes downward from the lower end face of a die. CONSTITUTION:A tie bar 4 and resin 2 between leads are cut in a semiconductor device 1. In this case, after the resin 2 between leads are first cut by the tip cutting part 10c of a die punch 10, minute remainders of the cut surface 2a also are continuously chipped by a grooved cutting part 10b. At the same time, after the tie bar 3 is cut by the tapered cutting part 10a of the die punch 10, cut tie bars are obliquely pressure-stacked as tie bar chips 9 between the cutting surface 7a and the lower end face 7b of a die in a state where the tie bar chips are stacked along the tapered cutting part 10a. At that time, resin powder 8 between leads is dropped completely, because the tip cutting part 10b protrudes from the lower end face 7b.
Patent JP-H03102077-A (JP)
Title: Package carriage device from snubbing temporary twister
Inventor: HIRAI KAZUYASU
IPC: B65H67/06
Filed: 1989-09-18
Abstract: PURPOSE:To improve the production efficiency of a machine by efficiently delivering a package to a device outside the machine with the interlocked operation of a carriage process via a peg connected to an endless transmission device moving around a primary heater, and an extrusion process at the end of the carriage process. CONSTITUTION:A package carriage process consists of a process for delivery to a peg 5 with an automatic doffing device 63, a process for carriage to an end part 1A with a peg peripheral turning device 1, and a process for extrusion to an outside carriage device 30 via a pusher device 15. The package 60 of a machine body is doffed with the automatic doffing device 63 traveling between a primary heater and the body, and delivered to the peg 5 connected to an endless transmission device 2 moving around the primary heater. Then, the endless transmission device 2 is turned peripherally and the package 60 thereon is carried to the end part 1A. Furthermore, the package 60 is extruded to the outside carriage device 30 having a tray or the peg 5, via a pusher device 15 installed at the end part 1A.
Patent JP-H1182047-A (JP)
Title: Portable power working machine
Inventor: NAGASHIMA AKIRA
IPC: F01M1/02
Filed: 1997-09-05
Abstract: PROBLEM TO BE SOLVED: To facilitate the maintenance and inspection by constituting a reciprocating oil feed pump for lubricating a working part mounted on a body housing in such a manner as to be driven by utilizing the operation of a valve system. SOLUTION: A chain saw 10 comprises a head 1-valve 4-cycle engine 20 loaded near the center of a body housing 12 with a vertically set cylinder. It is also provided with a pump driving mechanism 110 for driving a reciprocating oil feed pump 120 by utilizing the opening operation to the exhaust valve of a valve system 70 in this engine 20. The pump driving mechanism 110 has a rocking arm 115 supported by a support shaft 116, and the plunger 122 of the oil feed pump 120 is pressed down against a coil spring 124 by the rocking motion of the rocking arm 115 interlocked with the vertical motion of a push rod 79, whereby the oil feed pump 120 is made to perform an oil feeding operation to supply the lubricating oil in a lubricating oil tank 65 to the sliding surface between a saw chain and a guide bar.