baber/WOPTO huggingface dataset:
Patent JP-H04235944-A (JP)
Title: Production of novel epoxy compound and precursor thereof
Inventor: SAKAKIBARA TARO
IPC: C07C67/343
Filed: 1991-01-14
Abstract: PURPOSE:To obtain the title epoxy compound selectively and effectively, by dehydrating condensation between p-formylbenzoic acid and an aromatic hydroxyl compound in the presence of an acidic ion exchange resin followed by reaction with a halohydrin. CONSTITUTION:A dehydrating condensation is carried out at room temperature to 130 deg.C between (A) p-formylbenzoic acid or its alkyl ester and (B) an aromatic hydroxyl compound using as catalyst an acidic ion exchange resin (e.g. strongly acidic cation exchange resin). The resulting product is, if needed, hydrolyzed into an aromatic hydroxycarboxylic acid (or its ester) of formula I (Ar<1> and Ar<2> are each <=20C aromatic group; R<0> is H or 1-10C alkyl; m and n are each 1-3). This compound is then reacted at 30-l50 deg.C in the presence of a halohydrin and base (e.g. Na0H) to obtain the objective epoxy compound of formula II (G is of formula III or IV ; R is G or 1-10C alkyl) which is useful as a raw material for heat-resistant cured resins.
Patent JP-S56112790-A (JP)
Title: Junction type semiconductor laser
Inventor: NISHIZAWA JIYUNICHI
IPC: H01S5/00
Filed: 1980-02-12
Abstract: PURPOSE:To prevent the deterioration or surface breakdown of the end face of the output of the semiconductor laser by forming the output end face for irradiating the light of the laser of high resistance semiconductor layer. CONSTITUTION:The first layer 2 of N type Ga1-xAlxAs, the second layer 3 of N or P type GaAs, the third layer 4 of P type Ga1-xAlxAs, and fourth layer 5 of P<+> type GaAs are sequentially formed on an N type GaAs substrate 1, and striped active region is formed. The striped region is formed, for example, by retaining the striped region, irradiating proton thereto to form a high resistance region, and the output end faces 6, 6' are not only formed in parallel with the stripe but have high resistance layer. In order to form the high resistance layer, there are methods of injecting oxygen or chromium atom by an ion injection in addition to the irradiation of the proton, but according to the above method very shallow high resistance layer can be formed, resulting in low loss.
Patent JP-H02261413-A (JP)
Title: Coffee maker
Inventor: ERUNESUTO IRII
IPC: A47J31/00
Filed: 1990-01-29
Abstract: PURPOSE: To obtain a cup of delicious long coffee by providing a coffee-making device with a combination of a fluid flows detector, a temperature detector and a controlling means to receive signals from these two units and process the received signals according to predetermined algorithm to control the temperature of the moving water as a function of the volume of moving water. CONSTITUTION: Pressing a push-button 20 works the device to close a switch 15 and accumulate energy in an electric resistor 8. When the water temperature in a heat exchanger 7 reaches the initial value 98 deg.C by the electric resistor 8, a light 21 is turned on. On demand for some coffee by a user, a pump 6 starts and a microcontroller 14 processes the signals received through a fluid flow detector 12 and a temperature detector 13. If standard coffee is requested, the device is controlled so as to brew the coffee as required; that is, the volume of the moving water varies from 0 to 40cm<3> and the water temperature in the heater 7 falls slowly from 98 deg.C to 95 deg.C. After the requested coffee is taken out, the water temperature within the heater 7 rises to and is maintained at 98 deg.C.
Patent JP-S56112601-A (JP)
Title: Measuring device for particle size
Inventor: NARUTOMI TADASHI
IPC: G01N15/02
Filed: 1980-02-13
Abstract: PURPOSE:To measure the size of particles with simple constitution by connecting two plates with an inclination and utilizing the difference in positions of contact of the particles with the two plates according to the size thereof. CONSTITUTION:An angle formed by two particle accepting plates 2 and 2' is set properly by a particle accepting plate angle driving device 4. After the angle and interval formed by the two particle accepting plates 2 and 2' are set as prescribed, a group of particles to be measured are jetted from a jetting device 6. As the result, they are fixed within the particle accepting device 1 and thereby a figure of state of distribution of one group of particles is formed as a whole. Based on the figure of state of distribution, the particle size of the group of particles is measured by the measuring device 7.
Patent JP-S57132771-A (JP)
Title: Commutation angle arithmetic circuit
Inventor: TERAJIMA MASAYUKI
IPC: H02M7/515
Filed: 1981-02-06
Abstract: PURPOSE:To improve the vector controllability of an induction motor with a current type inverter by detecting the zero point of positive and negative half waves of each phase current and obtaining the commutation delay angle and the superposed angle in accordance with the detection signal and firing pulse signal. CONSTITUTION:The zero point of the positive and negative half waves of the each phase current of a motor 1 is detected by comparators 5, 6 and is applied to differentiating circuits 7, 8. The outputs of the circuits 7, 8 are applied to an OR gate 9. The output of the gate 9 and a firing pulse signal are applied to counters C1, C2 to calculate the commutation delay angle Ud between the firing pulse signal and the phase current and the superposed angle U at the commutation time. Since the calculation is based on the zero point detection signal of the phase current, the arithmetic circuit can be economically formed, and the delay angle and the superposed angle can be accurately produced at the commutation time, thereby accurately obtaining the phase difference of the firing pulse signals of the thyristor to improve the controllability.
Patent JP-H08190043-A (JP)
Title: Lens barrel, camera and optical equipment
Inventor: WATANABE KOJI
IPC: G02B7/10
Filed: 1995-01-06
Abstract: PURPOSE: To improve the operability of a lens barrel moving a focusing lens group provided in a front group lens barrel in an optical axis direction. CONSTITUTION: This lens barrel is provided with the focusing lens 7 provided to freely move in the optical axis direction in the front group lens barrel 3, a driving means 9 driving the focusing lens group 7, plural focus rings 1 and 2 mounted in front and in the rear in the optical axis direction on the outer periphery of the lens barrel 3 so that they can rotate around an optical axis, and detecting means 5 and 6 detecting the rotation of the focus rings 1 and 2; and it is equipped with an elastic member 4 arranged between the front and rear superposed parts of the focus rings 1 and 2 and mutually press- contacted and coupled with the front and the rear focus rings.
Patent JP-H0851009-A (JP)
Title: Bond magnet
Inventor: HOSHINA TETSUO
IPC: C22C38/00
Filed: 1995-01-06
Abstract: PURPOSE:To obtain a bond magnet principally comprising a rare earth metal Nd, iron Fe, and boron B in which the local battery action is weakened even if an Ni-W alloy is added thereto. CONSTITUTION:Any one of Cr, Mo, Zn or Al is added in addition to an Ni-W alloy. Since the electrode potential of an Ni-W alloy-M based alloy (M represents any one of Cr, Mo, Zn or Al) approaches the electrode potential of an Nd-Fe-B alloy to decrease the potential difference, the local battery action is weakened in a bond magnet obtained by mixing Nd-Fe-B powder and Ni-W-M alloy powder and thereby a corrosion resistant bond magnet is obtained.
Patent JP-S59150905-A (JP)
Title: Superhigh pressure steam turbine
Inventor: OONUKI TOSHIO
IPC: F01D9/02
Filed: 1983-02-03
Abstract: PURPOSE:To reduce leakage of steam in between rotor shaft and nozzle box by providing nozzles on both sides of the nozzle box which is arranged in the center of turbine, and by disposing multiturbine stages symmetrically relative to said nozzle box. CONSTITUTION:A nozzle box 31 is arranged in the center of a turbine, and nozzles 36, 37 are disposed on its both sides back to back. Multiturbine stages 38, 39 are disposed symmetrically relative to the nozzle box 31. By this constitution, as there is no reversal of steam flow jetting out of the nozzles, resulting in the excellent steam flow, while the leakage of steam from a gas between the nozzle box 31 and the first stage of the turbine into a space M formed by the rotor shaft 32 and nozzle box 31 is reduced.
Patent JP-H03222112-A (JP)
Title: Magnetic film
Inventor: KATSURAGAWA TADAO
IPC: G11B11/105
Filed: 1990-01-26
Abstract: PURPOSE:To improve characteristics of a magneto-optical recording medium and to improve stability by forming a multi-layer film structure comprising a magnetic thin film having column-like structure of metal nitride comprising Fe, Co and Ni and an intrasurface magnetization film essentially comprising metal selected from Fe, Co and Ni. CONSTITUTION:At least one kind of nitride (MxN(2<x<=3)) of metal (M) com prising Fe, Co and Ni has a column-like structure containing various shapes of nitride granules 1a and intergranular vacancies filled with amorphous nonmagnetic elements 1b. The nitride granules 1a has C-axis orientation in this column-like structure as a magnetic thin film (A), which improves perpendic ular magnetic anisotropy of the magnetic thin film (A). An intrasurface magneti zation film (B) essentially comprising at least on metal selected from Fe, Co and Ni is laminated on the magnetic thin film (A). This multi-layer structure is obtained, for example, by forming the intrasurface magnetization film (B) and magnetic thin film (A) directly on a nonmagnetic supporting body 4 or with a reflecting layer 3 interposed, or by forming two layers of film (A) on both sides of the film (B) like a sandwich.
Patent JP-H04254546-A (JP)
Title: High carbon steel sheet and its production
Inventor: FUKUI KIYOSHI
IPC: C22C38/16
Filed: 1991-02-07
Abstract: PURPOSE:To provide a material capable of attaining a high strength of >=130kgf/ mm<2>, which can be seen in quenched-and-tempered steel materials, only by exerting forming and tempering treatment. CONSTITUTION:The steel has a composition consisting of 0.50-1.20% C, <=0.50% Si, 0.05-1.00% Mn, <=0.030% P, <=0.020% S, 0.5-3.00% Cu, 0.20-2.0% Ni, <=0.10% sol.Al, <=0.010% N, and the balance essentially Fe and further containing, if necessary, 0.05-0.50% V. A plate of the steel having the above composition is hot-rolled, and this plate is cold-rolled, after subjected, if necessary, to spheroidizing annealing at 600-750 deg.C, at >=20% reduction of area and is subjected to spheroidizing annealing at 600-750 deg.C for 6hr or to soaking at a temp. between (Ac1+50 deg.C) and 900 deg.C for 5-30min and to cooling down to ordinary temp. at 5-50 deg.C/sec cooling rate to undergo austenitizing.
Patent JP-S53101945-A (JP)
Title: Control system for variable length record
Inventor: NAKAZAWA TAMOTSU
IPC: H04L29/06
Filed: 1977-02-17
Abstract: PURPOSE: To simplify the control in terms of software, by making the record length variable by trak units paying attention to the advantages of the master file processing system so as to allocate files. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S58133595-A (JP)
Title: Manufacturing method of droplike condensation surface
Inventor: ABE TOSHIHIKO
IPC: F28F13/18
Filed: 1982-02-03
Abstract: PURPOSE:To enable to stabilize and to improve a coefficient of heat-transfer, by a method wherein fluoric resin is made to metalize on the surface of a metal of a condenser by glow discharge, and then hole sealing disposition of a thin film is done by metallizing through only heating, in a droplike condensation surface of a condenser. CONSTITUTION:A ground copper plate is used as a metallic condensation plate of a condenser, for example, polytetrafluoroethylene PTEF is provided in bulljar together with an evaporation material wound up on a nichrome wire, the inside of which is decompressed to 3X10<-2> millibar by a rotary pump, to which a direct current of about 10KV is applied by making a copper plate into the cathode and fluoric resin is made to evporate by glow discharge over cleaning. Then, only the glow discharge is suspended and heating of the evaporation material is kept up for vacuum evaporation of the fluoric resin. Thus, a fine and uniform thin film having no pin hole is formed on the surface of the copper plate causing a favourable droplike condensation surface.
Patent JP-H08212739-A (JP)
Title: Magnetic head supporting mechanism and magnetic disk apparatus
Inventor: HAGITANI SHINOBU
IPC: G11B5/60
Filed: 1995-02-03
Abstract: PURPOSE: To eliminate the positional deviation of a head and to shorten the accessing time by providing a large recess for containing a fixed area of a slider spacer and a gimbal on the adhering surface of the spacer to the slider. CONSTITUTION: A slider 1 is fixed to a slider spacer 2, and fixed in a single fixed area smaller than the area in which the spacer 2 is in contact with a gimbal 3. The gimbal 3 is fixed to a load arm, and connected to a guide arm. Since the spacer 2 and the gimbal 3 are fixed in the small area, the warpage or twist of the slider spacer mount of the gimbal 3 is scarcely affected to the floating surface of the slider 1. Simultaneously, the warpage, twist of the slider 1 or the spacer 2 is scarcely affected to the mount of the spacer of the gimbal 3, thereby reducing the initial attitude irregularity of the gimbal 3. Thus, the accessing time can be shortened to obtain a magnetic apparatus having a high speed and a large capacity.
Patent JP-H05213673-A (JP)
Title: Production of silicon carbide-based sintered compact having high heat conductivity
Inventor: NAGANO SABURO
IPC: C04B35/565
Filed: 1992-01-31
Abstract: PURPOSE:To obtain a silicon carbide-based sintered compact having high mechanical characteristics and high heat conductivity by adding a carbon-contg. compd. and a boron-contg. compd. as sintering aids and carrying out sintering and heat treatment in a nitrogen atmosphere under a high pressure. CONSTITUTION:A carbon-contg. compd. such as carbon black and a boroncontg. compd. such as B4C as sintering aids are added to silicon carbide powder having 0.1-2mum average particle diameter as a base by 1-4wt.% (expressed in terms of carbon) and 0.2-0.4wt.% (expressed in terms of boron), respectivity. They are mixed with a mixing means such as a ball mill, a binder is added and the mixture is molded into a desired shape by press molding or other method and sintered at 1,950-2,000 deg.C in vacuum or in an inert atmosphere to obtain a silicon carbide-based sintered compact having >=88% relative density and low heat conductivity. This sintered compact is heat-treated at 1,800-2,100 deg.C in a nitrogen atmosphere under a high pressure of 1,500-2,000atm so that the weight is increased by 0.01-5% and a sintered compact having >=100 W/mXk heat conductivity is obtd.
Patent JP-S5781506-A (JP)
Title: Recycling of waste automobile tire
Inventor: SUZUKI TAKESHI
IPC: E02B3/04
Filed: 1979-02-15
Abstract: PURPOSE: To reuse waste automobile tire in retaining walls for revetment or fishing bank by a method in which holes are drilled in several places of the waste tire, soil and sand are filled in the space of the tire, and the waste tires are stacked.  
     CONSTITUTION: Several holes are drilled in waste tire, soil and sand are properly filled in the space of the waste tire, and the waste tires are stacked in plane and alternately, or arranged vertically. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S62289485-A (JP)
Inventor: MAEDA MINORU
IPC: A47C7/18
Filed: 1986-01-30
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-H07209556-A (JP)
Title: Optical transmission and reception module
Inventor: KAKII TOSHIAKI
IPC: H01L31/0232
Filed: 1994-01-18
Abstract: PURPOSE:To mount parallel transmitted light modules with high density and facilitate aligning operation by using a receptacle type optical fiber array which has array light emitting elements and array light receiving elements couple together with an optical fiber array or optical waveguide and does not has a ribbon of optical fibers. CONSTITUTION:The optical transmission and reception module which performs optical parallel transmission has an LD array (light emitting element) 12 and a PD array (light receiving element) 13 formed at specific positions and the optical fiber array 10 or light guide which is connected to both the array element altogether is constituted. The LD array 12 and PD array 13 are formed on parallel axes respectively and connected to an IC 14 for LDs and an IC 15 for PDs. The LD array 12 and PD array 13 are manufactured independently of each other and aligned with and positioned at an integrated optical fiber array 10 through an array lens 11 at need. Consequently, the mount density can be improved.
Patent JP-H03221054-A (JP)
Title: Function part case for air bubble generating bath tub
Inventor: HARAGA HISATO
IPC: A61H23/00
Filed: 1990-01-28
Abstract: PURPOSE:To facilitate a maintenance work for a device, e.g. a filter, by closing the front of a function part case, containing a circulating pump, a motor attendant to a pump, and a filter, with an openable panel, and securely inserting the filter from the front of the case. CONSTITUTION:The front of a function part case E is closed with an openable front panel EO. An approximately hat-shaped filter mounting plate f1 is locked to the bottom of a filter F by means of a screw f3 and secured on the upper surface of the right deep part of a bottom plate E5 of the case E to form a lip insertion part f5 of a lip f4 on the deep side of the mounting plate f1. The lip f4 on the deep side of the mounting plate f1 is inserted in the lip insertion part f5 in a way that, in a state that a front panel E0 is removed, the filter mounting plate f1 secured to the filter F is pushed in the case E from the front toward the deep part along the upper surface of the bottom plate E5. A front lip f6 of the mounting plate f1 is looked to the bottom plate E5 by means of a screw f7, and the filter F is secured to the case E. Thus, a work to mount and demount the filter F is only a work to insert and retract a lip and a work to mount and demount a front screw f7, and is executed easily and rapidly.
Patent JP-S55110732-A (JP)
Title: Formation of uniform insulating film on grain-oriented silicone steel plate
Inventor: NEMOTO HIROSHI
IPC: C21D9/46
Filed: 1979-02-16
Abstract: PURPOSE:To form an uniform and dense film on grain-oriented silicone steel plate by retaining the viscosity of a MgO slurry to be coated before annealing at more than a specific value in the formation of a forsterite electrically insulating film on the surface of the silicone steel plate. CONSTITUTION:In the formation of a forsterite (2MgO.SiO2) electrically insulating film on the surface of a Si(3%)-containing grain-oriented silicone steel plate, a MgO-containing slurry whose viscosity is kept at 40 CP or more by adding CO2 gas or dry ice to the slurry to prevent the hydration of MgO is uniformly coated on the surface of the steel plate, and then the steel plate so coated with MgO uniformly is annealed to approx. 1200 deg.C to form an uniform and dense forsterite film on the surface of the steel plate.
Patent JP-H01194637-A (JP)
Title: Telephone set dial origination regulating circuit
Inventor: SUDA TOMOJI
IPC: H04M1/27
Filed: 1988-01-29
Abstract: PURPOSE:To prevent dial data stored in a memory part from being erased by maintaining power source supplying from a power source supplying circuit to the power source terminal of a pulse dial IC even when the dial pulse output of the pulse dial IC is regulated due to the action of a key locking switch. CONSTITUTION:A memory part which stores the redialing dial data is provided at a pulse dial IC 12, and the redialing action is carried out by the operation of a '#' key 11a of a key matrix switch 11. A current rectified by a bridge rectifier 15 is supplied through a power source supplying circuit 19 to the IC 12. Hooking switches 17 and 18 are mutually interlocked. By breaking a key locking switch 20 in the make condition of the hooking switch 18, the section between an HS terminal and the bridge rectifier 15 is interrupted, and the output action of the dial pulse IC 12 is stopped. That is, regardless of the conditions of the switches 17, 18 and 20, the power source is always supplied to a positive power source terminal VDD of the IC 12, and the data stored in the memory part is held.
Patent JP-S61177688-A (JP)
Title: Carriage positioning mechanism for magnetic recording device
Inventor: TAKAHASHI AKIYOSHI
IPC: G11B21/02
Filed: 1985-01-31
Abstract: PURPOSE:To enable carriage oscillating track to be adjusted to facilitate its fine adjustment by shifting the position of the yoke part of the drive part by utilizing the build-in gear mechanism and correspondingly shifting the magnet position. CONSTITUTION:When a stator yoke 10 of the drive part 5 is exited by a coil 8, the magnet 6 is turned in facing to the yoke 10. A lead screw shaft 4 is also turned and a ball 36 fitting in a spiral groove 1 is slid in the groove 1. A magnetic head carriage 22 performs a linear oscillating movement on a track of a predetermined distance through a plate spring 34 contacting with the ball 36. Turning of a worm gear is transmitted through a cover member 14 to the yoke 10 and the yoke position is changed together with the coil 8 on the outer periphery of the magnet 6. As a result, the magnet 6 is also shifted in the radial direction and the position of the shaft 4 is changed for resulting positioning of the head.
Patent JP-H02199766-A (JP)
Title: Short arc discharge lamp
Inventor: YOSHIDA GORO
IPC: H01J61/54
Filed: 1989-01-30
Abstract: PURPOSE:To reduce breakdown voltage and enable the prevention of breakdown by forming a trigger member of a ring part, a plurality of connecting parts connected to a first base, and a fixing part for fixing these connecting parts to a first sealing tube part on the high voltage applying electrode side. CONSTITUTION:A trigger member 40 is formed of a ring part 41 disposed on a gland electrode 22 in a luminous space swollen part 11, a plurality of connecting parts 42 connected to the ring part 41 in the plural positions, disposed along the outer wall of the luminous space swollen part 11 and connected to a first base 31, and a fixing part 44 for fixing the plural connecting parts 42 to a first sealing tube part 12. Hence, breakdown voltage can be reduced, and as the creeping distance with a second sealing tube part 13 is maintained, the breakdown between the ring part 41 and a gland electrode lead stick 24 never occur.
Patent JP-H11208650-A (JP)
Title: Paper container
Inventor: MURANO TSUTOMU
IPC: B65D5/74
Filed: 1998-01-29
Abstract: PROBLEM TO BE SOLVED: To manufacture a paper container for protecting half-cuts formed on a top section from getting damaged by the multi-stage during transportation and opening a straw hole easily. SOLUTION: In a paper container 1, a gable roof type top section 2 is formed on a closed-end body 9 by a sheet paper base, the whole faces of the surface and the back of which are coated with thermoplastic resin, and a first half-cut 4 forming a straw hole is formed from the back forming a straw hole is formed from the back on the top section 2, while a second half-cut 5 is so formed as to encircle the first half-cut 4, and a section encircled by the second half-cut 5 is interlaminar released from the surface to open the straw hole, and the second half-cut 5 is formed on a gable wall 3 of a gable roof type top section 2, and an end 7 as the end of interlaminar release is protruded slightly from a horizontal crease 8 forming the end edge of the gable wall 3 to the side of the body section 9.