baber/WOPTO huggingface dataset:
Patent JP-H08281832-A (JP)
Title: Manufacture of roller
Inventor: MORIKAWA SHOHEI
IPC: B29K105/04
Filed: 1995-04-14
Abstract: PURPOSE: To make the physical properties of a roller homogeneous by casting the foam of the elastic layer material of the roller from the upper end of a mold in the cavity formed at the inside, and exhausting the air in the cavity from the lower end of the mold. CONSTITUTION: At the time of injecting foam, an injection nozzle B is set at the upper side of a mold A. At the initial time of the injection, the foam is charged from the upper end of a cavity, then gradually moved down to the lower end by the own weight of the foam itself, the air in the cavity is exhausted from the lower end so that the entire cavity is charged. After the material of an elastic layer is charged, a mold A is heated to 60 to 130 deg.C for one hour or more to cure the material of the layer, and when the curing is completed and upper and lower cover molds 2, 3 are removed from the cylindrical mold 4, the excess material of the layer can be released from the mold in the state adhered to a cap since it is cured at the injection inlet of a cap 1, thereby preventing the contamination of the mold A.  Eventually, the cap 1 stuck with the excess material of the layer is cut out to obtain a roller.
Patent JP-S5314437-A (JP)
Title: Induction heating system
Inventor: HIGUCHI IWAO
IPC: F24C7/02
Filed: 1976-07-27
Abstract: PURPOSE:To reduce loss at each switching element and to eliminate radio frequency trouble, by connecting two switching elements such as transistors of main circuit inpparallel and using them in a time division sequential on/off system.
Patent JP-S62245281-A (JP)
Title: Cleaning device for recording device
Inventor: ENOMOTO MASAYUKI
IPC: G03G21/10
Filed: 1986-04-18
Abstract: PURPOSE:To surely prevent the stick step of a cleaning blade with a simple constitution by adopting a means where a film or a thin plate is stuck to a specific surface of the cleaning blade. CONSTITUTION:The lower face of a cleaning blade 1 forms angles alpha and betato a tangent (l) passing the contact between a photosensitive drum 15 and the cleaning blade 1, and a film or thin plate 2 is stuck to the side of the smaller angle alpha of the lower face of the cleaning blade 1. Thus, the stick step of the cleaning blade 1 is surely prevented in case of the trail system as well as the counter system, and the fear of disturbance of images is prevented because the photosensitive drum 15 is not oscillated.
Patent JP-S57206768-A (JP)
Title: Ejection pump for high pressure fuel
Inventor: TAKANO YOSHIYA
IPC: F02M69/12
Filed: 1981-06-12
Abstract: PURPOSE:To avoid interference of a pressure left after ejection with the shuttling motion of a pump measuring device by setting a timing at which a four-way valve of a high pressure fuel ejection pump is started to open at the outpt port thereof and another timing at which the valve is started to open at the suction port thereof so as to give a proper relation therebetween. CONSTITUTION:A lag of a timing at which a four-way valve is matched with an output port 11 or 11' thereof to start opening of the valve from a timing at which a suction port 12 is matched with a passage 19 formed in a sleeve 5  which is the member located around a shaft 4 to start opening of the valve,  should be within + or -5% (in term of a valve opening angle for a certain reference  or that of the outlet 11 or 11' of the four-way valve for that of a suction port  12). To obtain such lag, an angle of the grooves 20 in the four-way valve is properly set. When the suction port 12 is slifted to open the valve after a completion of ejection, the output port 11, or 11' of the four-way valve is completely opened so that a residual pressure after ejection has no influence on a  measuring chamber 10.
Patent JP-S5516277-A (JP)
Title: Rotary location detector for internal combustion engine
Inventor: MAKITA KUNIO
IPC: G01D5/245
Filed: 1978-07-21
Abstract: PURPOSE: To prevent errors regarding operation and the slippage, etc. of reference locations, by forming the output signals of each sensor of angle-end-revolution reference in rectangular wave-forms and by counting logic, and by using the rise and fall of the rectangular waves by means of an angle sensor as angular positions and the reference position.  
     CONSTITUTION: When a crank-shaft of an internal combustion engine turns, wave- forms b are generated at an angle sensor 4, and when a magnet 2 at the reference location faces to a revolution reference sensor 5 wave-forms a are put out from the sensor 5, thus changing these wave-forms into rectangular wave pulses c, d by means of each wave-form shaping circuit 8, 6 for reference and angles. When the logic of these pulses is counted by means of a NAND71 to produce output e and a R-SFF is set through a differentiation circuit in the fall and reset in the fall of the pulses c, the reference location is put out in the rise of the pulses e and changed into pulses f, and positioned at the center of angular locations, thus the crank-shaft does not alter to the positional slippage of the pulses c. Consequently, rotary locations can accurately be detected. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H01261883-A (JP)
Title: Structure of solder connection part of metal core wiring board
Inventor: ONISHI HIROAKI
IPC: H05K1/05
Filed: 1988-04-12
Abstract: PURPOSE:To obtain high reliable solder connection, by forming a through hole in a printed board part, forming a half-penetrating and pushing-up part and penetrating and forming an air bubble extracting hole capable of linking with the through hole. CONSTITUTION:In a core member 23 corresponding with a through hole 21 formed on a flexible wiring board 20, a half-penetrating and pushing-up part is formed, and a penetrating hole is formed as an air bubble extracting hole 26. The diameter of the pushing-up part 25 is smaller than that of the through hole; the hight (h) is about 1/2 of the core material thickness; the diameter of the air bubble extracting hole 26 is about 1/3 of the diameter of the pushing-up part 25. The above values may be suitable. Cream solder is spread on a part position to be connected, and a solder layer having no air bubbles is obtained by heating and fusing it in a reflow furnace. On account of existence of the air bubble extracting hole 26, air bubbles do not stay in the through hole, a complete solder connection state is realized, and high electric conductivity and mechanical characteristics are obtained.
Patent JP-H07293466-A (JP)
Title: Compressor
Inventor: SAKAI TAKESHI
IPC: F04C18/02
Filed: 1994-04-27
Abstract: PURPOSE:To prevent starting shock as well as to miniaturize a compressor to be used for an air conditioner without using any electromagnetic clutch and to reduce its cost. CONSTITUTION:A diving shaft 5 of a scroll-type compressor 1 is always driven rotated through a pulley 7. When a solenoid valve 23 provided on an inlet passage 24 is opened, pressure in an inlet pressure chamber 32 becomes higher than that in an atmospheric pressure chamber 31 by refrigerant to be supplied, thereby, an annular piston 28 is moved leftward, and the clearance between the conical tip part 27a of a taper pin 27 and a conical inner surface 26a of a taper sleeve 26 is increased. The revolution radius of a movable scroll member 12 is increased, and seal parts on both ends of a crescent-shaped fluid compression pocket 13 are brought into contact with each other, and effective compression work is performed. When the solenoid valve 23 is closed, pressure in the inlet pressure chamber 32 is lowered, the taper pin 27 is moved rightward, and the revolution radius is decreased, and a clearance is formed between the seal parts, thereby, refrigerant is not compressed, and a compressor 1 is brought into the idling state.
Patent JP-H09242091-A (JP)
Title: Construction method for underground structure
Inventor: SAKANO TADASHI
IPC: E02D31/02
Filed: 1996-03-07
Abstract: PROBLEM TO BE SOLVED: To provide a construction method in which it can be applied even for the place of difficult carry-in of a heavy machine, the construction period can be shortened, an effective floor area can be increased, outside waterproof treatment can be easily performed, and it is suitable for the soft ground or a narrow place. SOLUTION: A reinforced concrete external wall 1 is constructed on the ground, and while drilling the ground of the inside and the under part, the reinforced concrete external wall 11 is sunk down. Thereafter, arranged reinforcement drawn out from the reinforced concrete external wall 1 and arranged reinforcement for a reinforced concrete bottom slab are connected together, concrete is placed so as to form the reinforced concrete bottom slab, further a projecting connecting part is provided by placing concrete on the connected part of the arranged reinforcements, and a waterproof layer 2a continued from the external wall and concrete bottom slab is provided.
Patent JP-H0212865-A (JP)
Title: Semiconductor device
Inventor: ADORIANUSU UIREMU RUDEIKUITSUE
IPC: H01L29/78
Filed: 1989-04-11
Abstract: PURPOSE: To dissipate field carriers causing latch up effect efficiently without requiring any additional mask process or doping process by an arrangement wherein a second region beneath the source region of a second field effect transistor has doping concentration and depth substantially equal to those in a first region. CONSTITUTION: A lightly doped epitaxial layer 4 formed on a heavily doped first conductivity type substrate 2 is provided with a first region 5 of second conductivity type. The source and drain regions 6, 7 of a first insulation gate field effect transistor T4 are provided in the first region 5 while the source and drain regions 9, 10 of a second insulation gate field effect transistor T1 are provided on the outside of the first region 5. The source region 9 of the second field effect transistor T1 is located between the drain region 10 thereof and the first region 5 and a second region 20 of second conductivity type is provided beneath the source region 9.  In such a semiconductor device, the second region 20 has doping concentration and depth substantially equal to those in the first region 5 and it is connected electrically with the source region 9 of the second field effect transistor T1 .
Patent JP-H06300725-A (JP)
Title: Measuring method for cavitation condition
Inventor: TACHIBANA KATSURO
IPC: G01H17/00
Filed: 1993-04-16
Abstract: PURPOSE:To simply and precisely measure the amount of cavitation generation by a method wherein an electric resistance across one pair of electrodes arranged in a liquid is measured and a value corresponding to it is used as the amount of cavitation. CONSTITUTION:When a DC current is applied across electrodes 4, 5 via conductors 12a, 12b from an electric-resistance measuring apparatus 13, the DC current flows across both electrodes via a liquid 2 such as water or the like as a conductor, and a polarization is generated. Thereby, an electric resistance across both electrodes rises, and it is measured by the apparatus 13. On the other hand, an ultrasonic vibrating element 3 in which an electric signal 11 having an ultrasonic frequency has been input to driving electrodes 3b, 3c starts mechanical vibrations at the ultrasonic frequency. By the vibrations, the pressure distribution of the liquid 2 is changed suddenly, cavitation is generated at the inside of the liquid 2, the polarization is suppressed, and the electric resistance is lowered. That is to say, the polarization is generated in proportion to an applied voltage, and the degree of a depolarization is decided by the amount of cavitation. Consequently, when a voltage across both electrodes is known, the generated amount of the cavitation can be measured by measuring the electric resistance.
Patent JP-S63255600-A (JP)
Title: Flushing mechanism for pump shaft seal part
Inventor: HIRAGORI KAZUICHI
IPC: F04D29/10
Filed: 1987-04-14
Abstract: PURPOSE:To facilitate the maintenance inspection of a pump by drilling a flushing water pouring hole which communicates to a pump shaft seal part from an outlet side flow passage of a vane wheel onto a casing cover. CONSTITUTION:A flushing water pouring hole 4 is drilled on a casing cover 3 at the rear part of a vane wheel 2. A portion of the fluid which flows out from the vane wheel 2 is introduced into a mechanical seal 5 through the flushing water pouring hole 4 drilled on the casing cover 3 from an outlet side flow passage 1b of the vane wheel. After the generated heat in a sealing slidable part is removed, the water is returned to the suction side 1a. Therefore, in the maintenance inspection of the pump, assembly and disassembly work for the flushing water pouring pipe is obviated.
Patent JP-H04302066-A (JP)
Title: Edge direction calculating device
Inventor: NOSO KAZUNORI
IPC: G06T7/60
Filed: 1991-03-28
Abstract: PURPOSE:To calculate the accurate edge direction by calculating the edge direction of only edges whose edge direction is distinctly defined. CONSTITUTION:Plural nearby picture elements of an arbitrary picture element are mapped on a circle which has the arbitrary picture element in a picture as the center and has a prescribed radius, and densities (a) to (i) of plural mapped nearby picture elements are converted in accordance with distances from the arbitrary picture elements in the center. These densities a' to i' are measured along the circle, and measured results are expanded to a Fourier series to calculate frequency components and phase angles. The degree of edge indicating the degree of edge likelihood is calculated based on a fundamental frequency component and a high frequency component out of calculated frequency components; and when the degree of edge is larger than a prescribed value, the arbitrary picture element is decided as an edge, and the phase angle of this picture element calculated by Fourier expansion is set as the edge direction, thereby calculating the accurate edge direction.
Patent JP-H02270139-A (JP)
Title: Optical pickup device
Inventor: TAKASHIMA MAKOTO
IPC: G11B7/135
Filed: 1989-04-10
Abstract: PURPOSE:To reduce the effect of direct current offset, and to enlarge the width of regulating accuracy of an optical system by using a hologram instead of the optical system, and freely diffracting and condensing the reflected light of an optical disk. CONSTITUTION:Out of beams generated from a semiconductor laser 15, 0-th order beams transmitted through a hologram 14 pass through a focus lens 2, and the beams focuses on a disk 1. The beams diffracted by a pit 1a on the disk 1 returns a reverse path to the original point. One part of a far field image on a hologram 14 is diffracted by hologram areas 14a to 14d, and the image is formed on a four-divided photo detector 16. Thus a light flux emitted from a light source is converged on a medium by the focus lens 2, and one part of the reflected beams are separated and condensed with use of the hologram 14, and one part of the beams reflected beforehand are divided into four. Thus a tracking error signal without the direct current offset can be obtained based on the phase difference of the photoelectric converting output of opposite angle components of the four-divided diffraction beams.
Patent JP-H0747599-A (JP)
Title: Polyester tape
Inventor: TAKAHASHI TAKESHI
IPC: B29C55/02
Filed: 1993-04-16
Abstract: PURPOSE:To manufacture a tying tape of superior tensile strength, knot strength and resistance to fibrillation and a tape with lines of superior mechanical strength. CONSTITUTION:A tape composed of aliphatic polyester having a melt viscosity of LX10<3>-4X10<4> poise at the temperature of 190 deg.C and the shearing speed of 100sec<-1> and a melting point of 70-190 deg.C is manufactured. Thus a tying tape for automatic tying of packaging strings of superior tensile strength and flexibility and having biodegradability in the case of being buried in soil or the like and useful for the purpose of packaging heavy materials and also a tape with lines of superior mechanical strength are manufactured.
Patent JP-S63256251-A (JP)
Title: Method for preventing casting defect in die casting
Inventor: ENDO HIROHIKO
IPC: B22D17/22
Filed: 1987-04-13
Abstract: PURPOSE:To reduce cost of a product by arranging fine uneven surface on a cavity face of an insert die. CONSTITUTION:Matte finishing surface composing of recessing part 4 and projecting part 5 is beforehand formed on a part of the cavity face of the die insert 1 by process of electric discharge machining, etc. At the time of pouring molten metal 2 after spraying the die releasing agent on the cavity face, the molten metal 2 is brought into contact with the matte finishing surface in the die insert 1, and then it is brought into contact with the projecting part 5, but in the recessing part 4, an air layer 3 is formed so as to escape remained gas in the cavity. As contacting area between the molten metal 2 and the die insert 1 is reduced, the insert die 1 is not heated higher than necessary temp. Further, fluidity of the molten metal 2 is improved. By this method, casting defect, such as surface fold, cold shut, blister, galling, seizure, is prevented. Therefore, as the yield of the product is improved, the cost of the product is reduced.
Patent JP-S61280721-A (JP)
Inventor: TANIGUCHI ETSUO
IPC: H02J7/35
Filed: 1985-04-25
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-2000280679-A (JP)
Title: Ball-point pen tip
Inventor: NAGAI SHIGERU
IPC: B43K1/08
Filed: 1999-03-30
Abstract: PROBLEM TO BE SOLVED: To provide a light and smooth writing feeling, and at the same time, suppress wear as much as possible even after a long period of usage by forming a ball holder of an alloy containing gold and copper of specified amounts. SOLUTION: A ball holder 1 is formed of an alloy containing 40-55 wt.% of gold and 30-45 wt.% of copper. Then, the alloy may be formed of gold and copper only, but other metals such as silver, nickel, iron and zinc may be contained. However, when using an ink containing water and an organic solvent is taken under consideration, the adoption of silver is preferable from a viewpoint of corrosion-resistance. Also, a heat-treatment may be applied after a general metal working such as cutting or drawing is applied. Especially, after applying a treatment of a long period of time at a comparatively low temperature, at approx. 300-400 deg.C, or treating at a high temperature at approx. 700 deg.C, the alloy is left to cool at a room temperature, and the hardness is improved. In addition, the hardness may be decreased by rapidly cooling after heating to approx. 700 deg.C.
Patent JP-2000282832-A (JP)
Title: Lubrication structure for outboard motor
Inventor: KAWASAKI NAOKI
IPC: B63H20/00
Filed: 1999-03-30
Abstract: PROBLEM TO BE SOLVED: To improve the freedom of a layout of a thrust receiving structure by supplying lubricating oil through an oil passage to the thrust receiving structure. SOLUTION: Lubricating oil in an oil gallery 39 formed in a rocker shaft is introduced to a thrust receiving structure 50 of a cam shaft 21, and thereby, lubricating oil is sufficiently supplied, even if the thrust receive structure 50 is arranged on everywhere in a cylinder head 8. As a result, the flexibility of a layout of the thrust receiving structure 50 is improved. If the thrust receiving structure 50 is arranged in the vicinity of an upper end part of the cam shaft 21, the thrust structure 50 can be easily detached, and thereby, the cam shaft 21 is easily assembled and detached so as to improve assemblage and maintainability.
Patent JP-H10257733-A (JP)
Title: Permanent magnet buried motor
Inventor: HONDA YUKIO
IPC: H02K1/27
Filed: 1998-04-02
Abstract: PROBLEM TO BE SOLVED: To contrive the effective use of reluctance torque, by so burying the end on the side for leading the magnetic flux from stator side into a rotor as to cross the surface of the rotor at roughly right angles, tapering its tip in the position close to the surface of the rotor. SOLUTION: A rotor 3 is constituted by burying four sets of permanent magnets 8a, 8b,... arranged apart in two layers per pole in the radial direction of the rotor, at equal intervals in the circumferential direction of the rotor, and each set of permanent magnets 8a and 8b are arranged adjacently so that S poles and N poles may alternate, and besides, the permanent magnets 8a and 8b in two-layer relation are arranged so that the polarity on its periphery side may be the same. Then, the upper ends 9a and 9b in rotor rational direction R of the permanent magnets 8a and 8b are arranged so that each may cross the surface at roughly right angles, being tapered in the position close to the surface of the rotor.  Here, when it is defined that the width of the tapered tip of each permanent magnet 8a, 8b,... and that the tip width of the T of a stator is Lt, this is so arranged as to satisfy Lm<=0.7Lt.
Patent JP-H09257008-A (JP)
Title: Hydraulic control device
Inventor: KASHIWA TOSHIO
IPC: A01D41/12
Filed: 1996-03-19
Abstract: PROBLEM TO BE SOLVED: To prevent the happening of a trouble, such as the stop in an unexpected position of a hydraulic actuator connected to a solenoid valve, when a control unit to control a solenoid valve is brought into an abnormal stop. SOLUTION: A safety actuating circuit 25 is provided to actuate such that, in control of a solenoid valve operated by a drive system source B by a control unit 18 operated by a control system source A, when the control unit 18 is brought into an abnormal stop due to blow-out of the fuse of the control system source A, a first drive transistor Tr1 is switched by the drive system source B and a solenoid 13a for deceleration is automatically driven.
Patent JP-S5317023-A (JP)
Title: Color picture tube
Inventor: ANDOU KUNIO
IPC: H01J29/48
Filed: 1976-07-30
Abstract: PURPOSE: To improve the yield against the misconvergence of a color picture tube and a deflecting yoke by eliminating the lowering of a center beam. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H04320750-A (JP)
Title: Control device for air conditioner
Inventor: HINA KUNIO
IPC: F24F11/02
Filed: 1991-04-22
Abstract: PURPOSE:To facilitate a realization of comfortable environment by a method wherein a part for estimating a comfortable feeling of a person present in a room and generating a control signal is replaced with a memory means in a look-up table corresponding to an indoor environmental state with output values of various sensors being applied as inputs. CONSTITUTION:A look-up table 3 has as its inputs a sensor output value 20 got from some sensors 1 within an air conditioner, a set temperature 24 of a user got from a remote controller or an operation panel 4 and an output from a memory means 2 for storing a previous state of the sensor 1. A control signal 25 which is an output from the look-up table is a signal within a control chamber of the air conditioner and the control signal 25 is supplied to the interpolation part 5. Output values 21 got from the sensors 1 and output values 26 got from the memory means 2 are supplied to the interpolation part 5. The interpolation part 5 interpolates a part of the control signal 25 requiring the interpolation, delivers it as a control signal 27 to the air conditioner 6 so as to cause the air conditioner to be operated.