baber/WOPTO huggingface dataset:
Patent JP-S5438167-A (JP)
Title: Multifunctioned electronic watch
Inventor: SAKAMOTO MOTOKICHI
IPC: G04G13/02
Filed: 1977-09-01
Abstract: PURPOSE:To realize a multifunction watch having musical instrument function by selecting calculating function or electronic musical instrument function depending upon common keyboard operation.
Patent JP-H05255446-A (JP)
Title: Production of ethylene copolymer
IPC: C08F210/00
Filed: 1992-03-13
Abstract: PURPOSE:To carry out stable reaction over a long period in the copolymerization of ethylene with an alpha-olefin using a fluidized vapor-phase polymerization process and to obtain the subject copolymer having excellent physical properties by using a new catalyst. CONSTITUTION:A solid catalyst component is produced by successively contacting a porous inorganic oxide (preferably silica) with (A) an Si compound having bond of the formula Si-X<1> and/or Si-OR<1> (R<1> is 1-8C alkyl; X<1> is halogen), (B) a Grignard compound of the formula R<4>MgX<2> (R<4> is R<1>; X<2> is X<1>) (preferably X<2> is Cl), (C) a reaction product of an aluminum halide (preferably AlCl3) with an organic Si compound of formula I (R<2> is R<1> or phenyl; R<3> is R<1>; (m) is 0-3) (preferably alkylalkoxylsilane) and (D) a Ti compound of formula II (R<5> is R<2>; X<3> is X<1>; (n) is 0-4) (preferably titanium tetrachloride, etc.). Ethylene is copolymerized with an alpha-olefin in the presence of a catalyst consisting of the above solid component and an organic Al compound.
Patent JP-S5228405-A (JP)
Title: Metal melting apparatus
Inventor: OBARA ISAO
IPC: F27D11/08
Filed: 1975-08-29
Abstract: PURPOSE: In melting metals by arc heat, inactive gas such as argon is spouted and the heat energy of the arcs is dispersed by the pressure of the gas being spouted to evenly heat the metal to be melted, whereby the changes in metal characteristics by the high temperature of concentrated arcs are prevented. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H045307-A (JP)
Title: Underground wall construction method and precast block
Inventor: IZEKI HIDEO
IPC: E02D5/10
Filed: 1990-04-23
Abstract: PURPOSE:To improve execution workability by piling up precast blocks, which divide an underground wall to be constructed in a horizontal direction, in a trench and inserting connecting members in a longitudinal direction between the blocks to connect them together in one body. CONSTITUTION:The lower end of each connecting member 3 is fixed to the lowermost step block 1 which is hung in a trench 4, and moderating mortar is injected into a bag unit 12 through an injection hose connected to an injection hole 13. Next, a heating rope and the injection hose are collected after the block 1 is set on the bottom. Then, protruded parts 11, 21 of respective blocks 1, 2 are fitted to a recessed part 22 by successively hanging a laminating block 2 up to designed height on the upper surface of the block 1. After each connecting member 3 is inserted into an insertion hole 23 from the slit 24 of the block 2, the slit 24 is sealed with a seal material. Further, grout is injected into insertion holes 15, 23 of respective blocks 1, 2 and also connecting member 3 is tightened to fix its upper end to the uppermost block 2.
Patent JP-S587453-A (JP)
Title: Fluoran derivative and recording material containing the same
Inventor: IWAKURA KEN
IPC: B41M5/145
Filed: 1981-07-06
Abstract: NEW MATERIAL:The fluoran derivative having an arylamine group at the 2- position and a halogen atom at the 3-position of the fluoran skeleton. EXAMPLE:2-Anilino-3-chloro-6-diethylaminofluoran. USE:Useful as a pigment precursor for the recording material such as pressure- sensitive, heat-sensitive, or electrical heat-sensitive recording sheet. It can be applied also to the photo-sensitive printing material, a stamping material, a typewriter ribbon, a ball-point pen ink, crayon, etc. It gives low discoloration to the unprinted part, and is resistant to fogging during storage. PROCESS:The titled derivative is prepared, e.g. by reacting the benzoylbenzoic acid derivative of formulaI[R1 and R2 are (cyclo)alkyl, aryl, etc.; X is halogen; Ar is aryl]with the arylaminophenol derivative of formula II (R is H, methyl, -SO2CH3, etc.) in the presence of an acid catalyst such as Lewis acid, e.g. zinc chloride.
Patent JP-2000298008-A (JP)
Title: Method for measuring clearance between discoid rotary cutting tools
Inventor: SAKAI KENJI
IPC: B23Q17/24
Filed: 1999-04-13
Abstract: PROBLEM TO BE SOLVED: To provide a method by which the clearance between paired discoid rotary cutting tools can be measured by using a simple inexpensive instrument without requiring skillfulness. SOLUTION: In a method for measuring the clearance S between paired rotary cutting tools 1 and 2 which are respectively driven and rotated by means of parallel shafts 11 and 21, a laser beam projected from a laser beam projector 3 perpendicularly to the shafts 11 and 21 is passed through the space between the cutting tools 1 and 2 and received by means of a laser beam receiving device 5, and the clearance between the tools 1 and 2 is calculated by measuring the quantity of the received light.
Patent JP-S59231924-A (JP)
Title: Automatic phase controller
Inventor: KODAIRA WAICHIROU
IPC: H03L7/10
Filed: 1983-06-15
Abstract: PURPOSE:To attain quick initial locking of phase control and stable phase automatic control by providing a loop switching device opening a loop switch at starting possible for phase control and controlling this device by a CPU. CONSTITUTION:The loop switch 9 is opened at starting, a control voltage initial value of a voltage controlled oscillator 3 is written in a port 12, its initial value is D/A-converted 13 and becomes a control input of the oscillator 3. Further, an output of an A/D converter 10 representing an output of a phase comparator 7 is fed to a CPU 14 via a port 11 and stored in an RAM 16. Whether or not the phase state stored in this RAM 16 is in the phase locking range is discriminated by a CPU 17. When the phase state is not within the locking possible range, a new control voltage value is set to the port 12 and becomes a control input to the oscillator 3 while being D/A-converted. This operation is repeated until the phase locking range is obtained and when the locking possible range is obtained, the automatic phase control state is attained by allowing the switch 9 to close from the CPU 17 to the port 12.
Patent JP-S63271062-A (JP)
Title: Temperature control system for gas hot water heater
Inventor: TANI MASAMI
IPC: F24H1/10
Filed: 1987-04-28
Abstract: PURPOSE:To improve a rising characteristic of a temperature of fed hot water by a method wherein an amount of water decreasing signal outputted from an amount of inputted water discriminating part in response to an amount of gas discriminating signal from an amount of gas discriminating part for outputting an amount of gas discriminating signal of a preference of a control of gas amount is prevented from being applied to a sequence controller in case that an increased amount of gas is less than a maximum amount of gas. CONSTITUTION:When a difference in temperature between an input water temperature To and a predetermined value Ts is low, for example, in case that the input water temperature To is high or in case that a predetermined output hot water temperature Ts is low, an increased amount of gas Nup is less than a maximum amount of gas Nmax, so that a first and a second discriminating signals of 'H' level are outputted from a gas amount discriminating part 30. The first and second discriminating signals are applied to a sequence controller 34 and at the same time added to a gate part 32 to close the gate part 32, so that a decreased amount of water signal outputted from an input amount of water discriminating part 24 is prevented from being added to the sequence controller 34. With this arrangement, the sequence controller 34 may add a control signal for increasing an amount of gas up to an increased amount of gas Nup to a gas proportional valve actuator 22 and then does not output a decreased amount of water control signal to the amount of water servo valve actuator 20.
Patent JP-S61264775-A (JP)
Title: Optical semiconductor device
Inventor: KUMAI TSUGIO
IPC: H01S5/026
Filed: 1985-05-20
Abstract: PURPOSE:To obtain an optical semiconductor device having a high integrity, by using a clad layer in a semiconductor laser also as a collector layer of a bipolar transistor and using a cap layer also as an emitter layer. CONSTITUTION:A p-type GaAlAs clad layer 2 and an active layer 3, an n-type GaAlAs clad layer 4, a GaAs base layer 5 and a p-type GaAs current blocking and light trapping layer 6 are grown on a substrate 1 sequentially in that order. A groove is formed by photo lithography in the region where a current constricting part of a semiconductor laser is to be formed such that the groove extends from the surface of the light trapping layer 6 up to the base layer 5. An n-type GaAs cap and emitter layer 7 is formed by the LPE or vapor-phase epitaxial growth. An isolating groove 11 is then formed by the photo lithography, and an opening or groove extending from the surface to the base layer 5 is formed. An n-side and emitter electrode 8, a base electrode 9 and a p-side and collector electrode 10 are provided by means of the vapor deposition and the photo lithography.
Patent JP-H08299217-A (JP)
Title: Bathroom ventilator
Inventor: SHIBATA TATSURO
IPC: E06B7/02
Filed: 1995-04-28
Abstract: PURPOSE: To increase a ventilation amount from the inside of a bathroom and to quickly and smoothly perform ventilation inside the bathroom by opening a part of a bathroom door and providing a ventilating fan in the opening. CONSTITUTION: The ventilating fan 12 is provided in the lower frame part 11a of the folding door 11 provided for entrance and exit of the bathroom and a water evading board 13 provided with a baffle board 13a for preventing hot water from directly splashing on the ventilating fan 12 is provided on the bathroom side of the lower frame part 11a. Also, a water discharge hole 14 is provided on the bottom surface of the lower frame part 11a provided with the ventilating fan 12 and an influence on the ventilating fan 12 is prevented even when the hot water enters. A looper 15 for ventilation and blindfolding is provided on the side face of the lower frame part 11a on the outer side of the bathroom, which is the opposite side of the bathroom side provided with the water evading board 13.  When the ventilating fan 12 is operated, air outside of the bathroom is passed through the looper 15, passed through the water evading board 13 provided on the inner side of the bathroom by the ventilating fan 12 and supplied to the inside of the bathroom. By linking the ventilating fan originally provided inside the bathroom and the ventilating fan 12, the ventilation of large capacity is quickly performed.
Patent JP-S587902-A (JP)
Title: Microwave circuit
Inventor: SAWANO HIROSHI
IPC: H01P1/20
Filed: 1981-07-06
Abstract: PURPOSE:To mass-produce microwave circuits with even transmission and phase characteristics by previously forming a recessed part close to a microstrip line on an inductive plate forming the line and then fitting an inductive oscillator to the recessed part. CONSTITUTION:A recessed part 5 in which the lower part of an inductive oscillator 4a is just fitted is preveiouly formed on an inductive plate 1a close to an upper inductive plate 2 formig a microstrip line on its surface. The inductive oscillator 4a is fixed on the recessed part 5. Thus the oscillator 4a can be fixed extremely close to the upper inductive plate 2, so that band stopping filters with required stopping and phase characteristics can be stably massproduced.
Patent JP-S59231725-A (JP)
Title: Production of magnetic head
Inventor: SAKAUCHI SACHIKO
IPC: G11B5/17
Filed: 1983-06-14
Abstract: PURPOSE:To prevent a short circuit and a disconnection between coils which had the dielectric breakdown due to the exfoliation of a winding film at a sharp coner part of a winding groove and therefore to improve the yield of a magnetic field, by coating previously a hardening material to the winding groove of the magnetic head and performing winding after the hardening material is hardened. CONSTITUTION:A magnetic head contains a winding groove 3 cut at a part of a prismatic block held between support substrates 1 made of a nonmagnetic matter. An insulated hardening material 2 such as varnish, etc. is previously coated to the groove 3 and hardened. Then a coated winding like a formal wire, etc. is applied. This eliminates a process to delete a sharp corner part of the groove 3 and prevents a coil from short circuit or disconnection due to the exfoliation of the winding film and a contact between coils. Furthermore the winding diameter is not increased since it is not required in winding to reduce the tension of the winding. Thus the electric resistance is stabilized for a winding.
Patent JP-S5439486-A (JP)
Title: Improved process for preparing stable aqueous emulsion of acrylonitrile polymer
Inventor: KOBASHI TOSHIYUKI
IPC: C08F2/00
Filed: 1977-09-02
Abstract: PURPOSE: To prepare the title emulsion having high stability and homogeneity, containing large amount of polymer, useful as dyeing assistant, surface treating agent, water paint, pigment, etc., by polymerizing acrylonitrile in the presence of specific amount of water and a polymerization initiator under spontaneously generated pressure. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H043937-A (JP)
Title: Manufacture of semiconductor device
Inventor: OKADA KENJI
IPC: H01L21/8238
Filed: 1990-04-20
Abstract: PURPOSE:To obtain a semiconductor device, which does not form a high oxygen concentration region in the vicinity of the surface of a substrate and can prevent the formation of an oxygen deposit, by forming a film having the large diffusion coefficient of oxygen on a silicon surface and thermally treating the whole. CONSTITUTION:A thermal oxide film 2 as an implantation mask is formed onto a silicon substrate 1, and the oxide film 2 in the upper section of a well region is removed through etching. Ions are implanted to form a well 3, the oxide film 2 is removed and the surface of the substrate is exposed, and a polysilicon film 4 is deposited, but it ts important that the polysilicon film 4 is deposited in a state that there is no natural oxide film on the surface of the substrate. A well region 3 having desired impurity-concentration depth distribution is formed by diffusing the well region through heat treatment at a proper temperature for a proper time, but out diffusion can be continued without staying oxygen atoms on silicon/polysilicon interfaces because the diffusion coefficient of oxygen in the polysilicon film 4 is made larger than that in polysilicon. Accordingly, a semiconductor device, by which the formation of a high oxygen concentration region and the formation of an oxygen deposit are hardly generated, is acquired.
Patent JP-S58222908-A (JP)
Title: Exhaust gas particle purifier of internal-combustion engine
Inventor: KOJIMA AKIKAZU
IPC: F01N3/032
Filed: 1982-06-21
Abstract: PURPOSE:To enable a filter of being refreshed under a wide range condition of an engine by regulating the opening of an opening-and-closing valve according to the amount of the flow of engine exhaust gas at the refreshing time of the filter so as to control the quantity of gas which passes through the filter member. CONSTITUTION:When a filter is refreshed, electric current is fed from a terminal 3' and a heater is then heated to ignite and burn particle. An opening-and-closing valve 5 is disposed in the way of a bypass flow passage 4. When particle is going to be trapped, the opening-and closing valve 5 takes a fully closed position as shown by A in the drawing so that the entire amount of exhaust gas passes through the filter 2 and is trapped. When the filter is going to be refreshed, the opening-and-closing valve 5 takes a fully opened position C so that exhaust gas mostly passes through a bypass pipe 4. If the amount of exhaust gas is little, the opening and-closing valve 5 is set to take a half-closed position as shown by C to increase pressure loss in the bypass flow passage in order to maintain a differential pressure applied on the filter member, therefore assuring the quantity of gas which passes through the filter member.
Patent JP-S60252881-A (JP)
Title: Flow regulating valve
Inventor: HOKURA ISAO
IPC: F16K31/50
Filed: 1984-05-28
Abstract: PURPOSE:To prevent a fine particle from adhering to a valve part, by providing a stem, which provides in the valve part a slit with a sectional area gradually increasing from the inlet side toward the outlet side, in the case of a flow regulating valve. CONSTITUTION:A flow regulating valve 10 has a casing 18, and a stem 28 equips a valve part 30, pressure cancelling part 32 and a thread 34. The valve part 30 provides a slit 36 whose sectional area gradually increases from its inlet side toward outlet side. Accordingly, a particle, when it reaches the valve part, comes to be swept away by the fluid pressure in the slit toward a direction that its sectional area increases, and the particle is prevented from adhering to the valve part.
Patent JP-S61263760-A (JP)
Title: Ink jet printer
Inventor: MUKUMOTO KYOJI
IPC: B41J2/045
Filed: 1985-05-17
Abstract: PURPOSE:To enable two or more electrostrictive elements to be driven by a same drive circuit to reduce the required number of the drivers, by shifting nozzle pitchs between the respective colors little by little to shift the timing of driving the nozzle. CONSTITUTION:A plurality of nozzles 3 divided into (l) blocks, when nozzles of (m) number adjacent with each other are defined as one block, are aligned at angle theta to the direction in which the nozzles 3 move. When the pitch PN of the nozzle 3 has the horizontal component PNX and the vertical component PNNY and the dot to be printed has the horizontal component Px and the vertical component Py, they are so set as to meet the relations of PNX=nPx and PNy=Py. When the number (m) of the nozzles 3 is set 2, the vertical pitch Py has a relation Py=nPx tantheta between the nozzles for the same color, and Py=(n+1/4)Px tantheta between the nozzles for different colors, which induces discrepancy. But, this discrepancy reduces to a nearly inconsiderable amount by a method wherein; the large value is set for (n), results in theta of a small value, i.e., tantheta of a small value. It is needless to say that the value (n+p/l)Px can be applied to the vertical component in the pitch between different colors. (l, P are integers)
Patent JP-S61262232-A (JP)
Inventor: KURISUTOFUAA GURAHAMU WAADO
IPC: F16F15/133
Filed: 1986-05-09
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-S61263831-A (JP)
Title: Speed sprayer
Inventor: YAMAGISHI AKINOBU
IPC: B60K17/04
Filed: 1985-05-17
Abstract: PURPOSE:To make improvements in operatability, by supporting a transmission shaft, where power is transmitted via a bendable joint, with a bearing solidly rotating with a steering shaft, in case of a device which steers an axle for front wheels or driving wheels in making it rotate within a horizontal plane. CONSTITUTION:A steering shaft 12 is supported on a tip end of the neck 14 projectingly installed in body frame 10 via a bearing. And, a steering gear of a steering wheel or the like is connected to the upper end via an arm 30. Also, a U-shaped support frame 26 is installed in a lower end of the steering shaft 12, while the rocking part 24 projectingly installed in a differential gearbox 18 is pivotally supported on this frame 26 by a shaft 28, and a tire is attached to an axle 20 extending out of both sides of this box 28. A tilted support arm 34 is locked to the steering shaft 12, and a transmission shaft 38 to be connected to another transmission shaft 42 to be connected to a driving source is supported on the tip end via a bearing 36. and rotation is transmitted to a propeller shaft 18a of a differential gear 18A via belts 52 and 56.
Patent JP-S5230277-A (JP)
Title: Fluorescent substance for low speed electron beam
Inventor: MATSUOKA TOMIZOU
IPC: H01J9/227
Filed: 1975-09-02
Abstract: PURPOSE: A fluorescent substance of high luminance for low speed electron beam. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S5733003-A (JP)
Title: Wheel device
Inventor: MORITA NATSUO
IPC: B60B33/02
Filed: 1980-08-05
Abstract: PURPOSE: To obtain constantly stabilized travelling by automatically changing turning feature of front and rear wheels respectively such that the front wheel in the advancing direction can be turned freely and the rear one restrained with respect to the turning.  
     CONSTITUTION: When a roller 11 on an engaging member 10 does not engage with a latch part 16, a support frame 3 can freely turn. However, when it reaches  curved projection parts 17, 17 from either of the left and right sides of a latch member 13 to ride over said parts 17, 17 against the energization thereof and fit in a recess 15 fixedly, the turning of the support frame 3 is restrained. The fit in this latch part 16 is carried out smoothly by the roller 11. When a wheel 8 is subjected  to the external force to change the advancing direction under such condition, a  large turning force is applied to the support frame 3 so that the roller 11 rides over the curved projection part 17 against the energizing force thereof and gets out of the latch part 16 to permit the support frame 3 to turn freely again. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S5232046-A (JP)
Title: Polyamide composition
Inventor: NAKAMURA SATOYUKI
IPC: C08L77/00
Filed: 1975-09-05
Abstract: PURPOSE: A polyamide composition having a specific amount of terminal amino groups, with improvement in light-resistance and dyeing properties to acid dyes by addition of a metal salt of mercaptobenzimidazole, etc. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H045021-A (JP)
Title: Joining jig for flexible piping
Inventor: ISHIKAWA SHUNROKU
IPC: B29C65/18
Filed: 1990-04-23
Abstract: PURPOSE:To manufacture a superior bonding jig for heat fusion joining fit for flexible piping by providing a cylindrical body consisting of two semicylindrical bodies, making the inner periphery of one-half of the cylindrical body in the cylindrical direction fit for a flexible synthetic resin tube and the inner periphery of the other half to a flexible synthetic resin joint to be fusion bonded with the tube by providing a proper clamping means between both semicylindrical bodies. CONSTITUTION:A cylindrical body 1 consists of two half cylindrical bodies 11 and 12 forming almost semicylinders having arcs slightly shorter than semicircle, and one half 13 in the cylindrical direction of inner periphery is made fit for the outer diameter of a polybutene tube A to be fusion bonded, and the other half 14 is made fit for the outer diameter of a polybutene joint B to be fusion bonded. A joining section of the polybutene tube A and the polybutene resin joint B to be fusion bonded together is heat melted and both are fitted together. At that time, as the bonding section is tapered and is likely to slip off, a joining jig is fitted outside of the joining section quickly. The two open semi cylindrical bodies 11 and 12 are fitted over the outside of the bonding section of the polybutene tube A and the joint B fitted together crossing both, and the semicylindrical bodies 11 and 12 are brought into contact with the polybutene tube A and the joint B by operating the clamping means 2.