baber/WOPTO huggingface dataset:
Patent JP-H10158637-A (JP)
Title: Photochromic material and optical recording medium prepared by using the sane
Inventor: YOKOYAMA YASUSHI
IPC: G03C1/73
Filed: 1996-12-03
Abstract: PROBLEM TO BE SOLVED: To obtain a photochromic material excellent in heat stability and in durability in repeating photochromic reactions by incorporating a fulgide compd. into the same and to obtain an optical recording medium prepd. by using the same. SOLUTION: When irradiated with ultraviolet or visible rays, a flugide compd. represented by formula I [X is CF3 , CFR2 , or CF2 R (wherein R is H or alkyl; and two R's in CFR2 may be the same or different from each other); Y and Z are each O, S, Se, or N-R (R is H or alkyl); R<1> to R<3> are each H, alkyl, or alkoxy; L is alkyl or amino; and n is 0-2 provided when n is 2, then two (L)'s may be the same or different from each other and may combine with each other to form an optionally substd. satd. or unsatd. ring together with carbon atoms of the 5-membered heterocycle contg. Z] changes reversibly from a ring-opened isomer (an E isomer) to a ring-closed isomer (a C isomer) represented by formula II. A fulgide compd. represented by formula III (R<1> to R<7> are each H or optionally substd. alkyl or alkoxy) is esp. pref.
Patent JP-H08180746-A (JP)
Title: Aluminum pipe with high anti-corrosion
Inventor: IKEDA TAKESHI
IPC: G02B6/44
Filed: 1994-12-26
Abstract: PURPOSE: To enhance the anti-corrosion of an OPGW aluminum pipe, heighten the strength, and present good electroconductivity by configuring the pipe at least with two layers, and forming the outermost layer from a high anti- corrosion aluminum material. CONSTITUTION: A high anti-corrosive aluminum pipe for use in an optical fiber complex overhead grounding wire (OPGW) is formed from a layer 1 consisting of a high anti-corrosive aluminum material, a layer 2 consisting of high strength aluminum material, and an optical fiber 3. Anti-corrosiveness against acid rain, salt-containing water. etc., can be given by equipping the layer 1 as the outermost one. This two layer construction yields a high strength and high electroconductivity without impairing the anti-corrosiveness. Further because the layer 2 is formed from aluminum material of high strength, it sustains not only corroding attacks but also vibrations caused by winds etc., when it is installed overhead.
Patent JP-H04194767-A (JP)
Title: Oscillating device for rf pulse
Inventor: ENDO TAKESHI
IPC: G01R33/32
Filed: 1990-11-28
Abstract: PURPOSE:To obtain an RF pulse containing little harmonic component by a construction wherein an RF amplifier is of a push-pull type and LPF has an attenuation pole at a frequency being equivalent to a tertiary harmonic generated from the RF amplifier. CONSTITUTION:In an output of an oscillator 1, i.e. an output signal at a point P1, only an RF signal of a frequency (f) exists. When the output passes through an RF amplifier 4 and is amplified thereby, thereafter, harmonic components are generated. Since the amplifier 4 employed herein is of a push-pull type, on the occasion, an odd-number-order harmonic component is large and an even-number-order harmonic component is small due to the characteristics of the amplifier. In an output of the amplifier 4, i.e. an output signal at a point P2, accordingly, the component of a tertiary harmonic 3f is large. LPF 5 is so set as to have an attenuation pole at the harmonic 3f, and therefore the harmonic components of the tertiary harmonic and around it can be removed. Accordingly, the RF signal hardly containing the harmonic components can be obtained for an output of the LPF 5, i.e. an output signal at a point P3.
Patent JP-2000150537-A (JP)
Title: Compound semiconductor device and its manufacture
Inventor: INOUE KAZUTAKA
IPC: H01L27/088
Filed: 1998-11-13
Abstract: PROBLEM TO BE SOLVED: To provide a compound semiconductor device including a FET in which a short-channel effect is suppressed and at the same time the gradation of pinch-off characteristics caused by the conduction of a p-type impurity in an area other than a channel is suppressed, and the leakage between adjacent elements is suppressed in the FET with a high-concentration and thin-layer active layer. SOLUTION: In a compound semiconductor device for forming a field effect transistor with a buried p-region structure 3, a gate region 4, e.g. is thin and is heavily doped with an n-type impurity, the buried p-region 3 is shallow and is heavily doped with a p-type impurity in order to compensate for the heavily doped gate region, and a low-concentration p-type impurity region 2 is formed at the side end part of heavily doped buried p-region 3 in order to prevent a leakage current from occurring between the heavily doped buried region 3 and a gate electrode 5, thus preventing a current from flowing at an area other than a channel.
Patent JP-H09148851-A (JP)
Title: Switching power source for audio
Inventor: HATANAKA MASAHIKO
IPC: H03F3/217
Filed: 1995-11-17
Abstract: PROBLEM TO BE SOLVED: To obtain a switching power source in which the responsiveness to rapid load fluctuation like an audio signal is excellent, the audio signal can be taken out without increasing distortion and a power source part is miniaturized. SOLUTION: Based on the amplitude values of digital input signals which are successively inputted, the pulse modulation signal for determining the DC output voltage value of an AC-DC conversion part 5 is determined by a pulse control part 6. By outputting the audio signal for which the power amplification is performed by a digital power amplifier part 1 after the digital input signals are delayed, DC output voltage is corrected by the same timing as the increase of the amplitude of the digital input signal.
Patent JP-H07172706-A (JP)
Title: Long size tube take-up reel and winding method
Inventor: AZUMA SHUJI
IPC: B65H65/00
Filed: 1993-12-22
Abstract: PURPOSE:To enable only conforming article part of a long size tube to be shipped by winding it around a shipping reel without rewinding in the final process of the manufacture. CONSTITUTION:A defective part of a tube is selectively wound around a winding core between collars 4, 5 by using a take-up reel composed of a take-up drum 1 wherein a collar 3 is provided on one end is made to be freely attached, and detached, and a reel detent (an intermediate collar 5) is provided near a collar 4 on the other end, and a shipping reel 9 to be attached on the winding core between one end and the reel detent, and a conforming part is selectively wound on the shipping reel by being moved on the part of notch parts 8, 13. After that, the collar is detached, and the defective part of the tube is cut, and then the shipping reel 9 is detached together with the conforming tube wound on the shipping reel from a winding core 2, thereby rewinding for removing an adjusting leading part (defective part) of cut-off is not necessitated.
Patent JP-H03185265-A (JP)
Title: Fuel injection device of diesel engine
Inventor: EGUCHI NOBUJI
IPC: F02M61/18
Filed: 1989-12-15
Abstract: PURPOSE:To properly maintain the speed of combustion of the whole fuel and heighten the speed of combustion of fuel by setting the speed of injection of the fuel in such a manner that fuel injected from a nozzle passes flames of fuel previously injected. CONSTITUTION:When a cam shaft 30 is rotated syncronously with the crank shaft of an engine, a roller 36 rolls a cam 32 and also a plunger 34 reciprocates, thereby forcibly feeding fuel to a nozzle (not shown in Figure). In this case, one sloping surface portion 37 and two R portions 38, 40, both connected to the portion 37, are formed on the cam 32. The speed constant of the plunger 34 i.e. the speed at which the rate of fuel injection from the nozzle is increased is suddenly increased at the sloping surface portion 37 and is reduced at the first R portion 38 and made flat at the second R portion 40. The speed of fuel injection is thus set so that fuel injected from the nozzle passes flames of fuel previously injected.
Patent JP-H04217668-A (JP)
Title: Pyrazolylacrylic acid derivative, agricultural/ horticultural bactericide with the same as active ingredient and intermediate thereof
Inventor: ODA MASAJI
IPC: C07D231/18
Filed: 1990-11-27
Abstract: PURPOSE:To provide the title novel, low toxic derivative having high bactericidal activity and plant penetrability in the form of an agricultural/horticultural bactericide. CONSTITUTION:The objective compound of formula I [R1 and R2 are each H or 1-5C alkyl; A is of formula II (X is 1-5C alkoxy, halogen, nitro, etc.), etc.; n is 1-5; B is methoxycarbonyl or cyano], for example, (E)-methyl 2-(4- benzyloxy-1,3-dimethyl pyrazole-5-yl)-3-methoxyacrylate. The present compound can be obtained by the following process: a compound of formula III as the starting material is reacted, in the presence of a base, with a compound of formula A-CH2hal (hal is halogen) into an important intermediate of formula IV, which is then reduced into an alcohol derivative followed by conversion, through an intermediate, into a compound of formula V. This compound is then reacted with a methylating reagent and a base.
Patent JP-2000143767-A (JP)
Title: Production of urethanized hydroxyl group-containing polymer
Inventor: KANEMOTO KOJI
IPC: C08G18/73
Filed: 1998-11-13
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing the objective urethanized hydroxyl group-containing polymer by smoothly advancing a reaction without using a reaction solvent in a method for subjecting a hydroxyl group-containing polymer and an aliphatic group-containing isocyanate to an addition reaction. SOLUTION: In a method for subjecting a hydroxyl group-containing polymer having >=30 deg.C melting point or softening point and an aliphatic group-containing isocyanate to an addition reaction, an isocyanate liquid at 50 deg.C is used as the isocyanate. A hydroxyl group-containing polymer particle having >=30 cm2/g specific surface area is dispersed into the isocyanate. The dispersion is reacted with stirring at the melting point or the softening point of the hydroxyl group- containing polymer ±50 deg.C to produce the objective urethanized hydroxyl group- containing polymer.
Patent JP-H11162093-A (JP)
Title: Disk drive unit
Inventor: WAKITA MASANORI
IPC: G11B19/20
Filed: 1997-11-26
Abstract: PROBLEM TO BE SOLVED: To make a disk drive unit attached/detached from a discoid recording medium thin to have an outer dimension for attachment/detachment from the PCMCIA port of a computer. SOLUTION: In a disk drive nit constructed in such a manner that an engaging projecting part formed in a circular shape coaxial to a rotary shaft is provided in the hub of a floppy disk and a ring-like recess 32a engaged with the engaging projecting part for positioning a disk medium on a rotational axis is provided in a turntable, a bearing housing groove 32b is formed in a circular shape coaxial to the ring-like recess 32a in the backside of the hub loading surface of the turntable and inside the ring-like recess 32a.
Patent JP-H11158418-A (JP)
Title: Fungusproofing method for tile joint
Inventor: TANAKA YOSHIMASU
IPC: C09D5/14
Filed: 1997-11-26
Abstract: PROBLEM TO BE SOLVED: To provide a new fungusproofing agent and a fungusproofing method for tile joints using this agent, so as to thereby enable performance of the fungusproofing for the joint part with good workability and no damage of the appearance of tile surfaces. SOLUTION: A fungusproofing material is a blend of 100 pts.wt. of a water- based, penetrative, water-absorption preventing agent which is formed by aq. emulsification of a water-repellent alkylalkoxysilane in the presence of a nonionic emulsifier and an anionic one, and 0.5-10 pts.wt. of a fungusproof agent. This fungusproofing method for a joint part comprises applying this agent on the whole tilting surface is an amt. of 100-300 g/m<2> , then wiping it up only on the tile surface with remaining on the joint part.
Patent JP-2001143347-A (JP)
Title: Disk chucking mechanism
Inventor: SAKAGUCHI TAKAHIRO
IPC: G11B17/028
Filed: 1999-11-15
Abstract: PROBLEM TO BE SOLVED: To surely chuck an upper and a lower FD by a disk chucking mechanism which attracts a hub arranged on a magnetic disk by a magnet and chucks it. SOLUTION: The disk chucking mechanism is so constituted as to selectively mount on a turntable 15 a lower FD 100A having a hub 102A made flat and an upper FD 100B having a hub 102B having a step part 117 formed by an annular projection part 106 and is provided with an attracting magnet 40 which chucks the disks 100A and 100B to the turntable 15 with a magnetic force, and the attracting magnet 40 is composed of 1st and 2nd magnet parts 40A and 40B which are formed in one body. Then a step part 40C is formed by making the height of the 1st magnet part 40A from the top surface of the turntable 15 larger than that of the 2nd magnet part 40B and this step part 40C corresponds to the step part 117 that the hub 102B of the higher FD 100B has.
Patent JP-H01166698-A (JP)
Title: Diaphragm for speaker
Inventor: ASANO YUKIO
IPC: H04R7/02
Filed: 1987-12-22
Abstract: PURPOSE:To manufacture a diaphragm with excellent acoustic characteristic by reinforcing a fabric made of a high elastic fiber by means of a hat resistance thermosetting resin whose glass transition point is 140 deg.C-180 deg.C. CONSTITUTION:A fabric 1 is obtained by using a fiber bundle of carbon fiber filament 3000f as a high elastic fiber whose elastic modulus is such as 15000kg/mm<2> as weft and warp, adopting a count density of 12.5strings/inch for both the weft and warp and applying plain weave. A heat resistance thermo setting resin 2 is applied to the fabric 1, the result is subjected to heat and pressing and a diaphragm 3 is formed by finish process. As the resin used in this case, heat resistance vinylester or heat resistance epoxy resin whose glass transition point is 140 deg.C-180 deg.C is used. Thus, the diaphragm whose tandelta is 0.01-0.02 is obtained, and the acoustic characteristic is improved.
Patent JP-H07184296-A (JP)
Title: Ultrasonic wave probe
Inventor: SAITO TAKAYOSHI
IPC: H04R17/00
Filed: 1993-12-22
Abstract: PURPOSE:To obtain an ultrasonic wave picture with high resolution in an azimuth direction and a distance (depth) direction. CONSTITUTION:A 1st acoustic matching layer 5 is provided to a face of a piezoelectric vibrator 1 for an ultrasonic wave transmission reception side at a region except part of an outer end of an opening so as to be gradually thinner toward an outer ridge. A 2nd acoustic matching layer 6 is provided to an outer edge of the piezoelectric vibrator 1 and a front side of the 1st acoustic matching layer 5. Since the 1st acoustic matching layer 5 is not in existence at the outer end of the opening, a sound pressure around the center of the opening of the piezoelectric vibrator 1 is high and a sound pressure at an outer edge is gradually lower, the side lobe level is reduced by giving a weight to the sound pressure to make a long focus deep and the frequency characteristic closer to the regular distribution over a broad band is obtained.
Patent JP-H05157927-A (JP)
Title: Glass waveguide and production of glass film for core thereof
Inventor: IMOTO KATSUYUKI
IPC: G02B6/12
Filed: 1991-12-09
Abstract: PURPOSE:To facilitate the control of a film thickness and refractive index by irradiating and evaporating a tablet formed by mixing powders of SiO2 and Ta2O5 with an electron beam and forming glass films on substrate. CONSTITUTION:The tablet 4 consisting of the SiO2 and the Ta2O5 is housed into an evaporating source 3 in a chamber 2 and substrates 7 formed with low-refractive index layers are mounted to a substrate holder 6. The chamber 2 is maintained in a vacuum state. The particulates of the SiO2 and Ta2O5 of the tablet 4 evaporate radially when the tablet 4 is irradiated with the electron beam from an electron gun 5. The vapors arrive at the substrates 7 and form the glass films for the core on the surfaces thereof. Then, the intrusion of impurities does not arise and in addition, the film thickness can be controlled simply by changing the current value of the electron beam. The addition of the Ta2O5 is easy and the refractive index uniform in the film thickness direction is obtd. The glass films are formed to a rectangular shape by photolithography and dry etching and are coated with glass films of a low refractive index, by which the glass waveguides are obtd.
Patent JP-H05159169-A (JP)
Title: Fire sensor
Inventor: YASUGATA MASANOBU
IPC: G08B17/00
Filed: 1991-12-09
Abstract: PURPOSE:To prevent such mischief as covering a fire sensor head installed in an airplane, coach, and other cars with a paper cup or vinyl bag. CONSTITUTION:Multiple fins 24 having a part higher than a projecting part of a head part of a main body and also having a fanwise part with its hight gradually decreasing as going far from the head are provided around a central opening part 16c of an attaching part. By this, access to a main body head part 14a becomes difficult, meschief to the head part 14a is prevented.
Patent JP-H11156363-A (JP)
Title: Chlorine generator
Inventor: WATANABE KAZUSHIGE
IPC: C02F1/76
Filed: 1997-11-26
Abstract: PROBLEM TO BE SOLVED: To provide a chlorine generator which exhausts a gas component, such as oxygen gas, generated in the chlorine generator, and prevents a decrease in the efficiency of chlorine generation. SOLUTION: This chlorine generator where chlorine ion-containing water, such as tap water, flows into a closed water storage vessel 30 through a water supply valve 2, a direct-current voltage is impressed to the chlorine ion- containing water through a pair of electrodes 33a and 33b, and the chlorine ion-containing water is electrolyzed to generate a chlorine component effective internalization, has a structure having a gas discharging means 36 for discharging oxygen gas or the like generated by electrolysis, a timer means for setting the time when the water supply valve 2 and the gas discharging means 36 are opened and the time during closing of the water supply valve 2 and the gas discharging means 36, and a gas discharge controlling means for opening the water supply valve 2 and the gas discharging means 36 at the time set by the timer means.  Thereby, a decrease in the efficiency of chlorine generation can be prevented, and the efficiency of gas discharge can be improved.
Patent JP-H07178287-A (JP)
Title: Washing machine
Inventor: OHASHI MASAHARU
IPC: D06F37/24
Filed: 1993-12-22
Abstract: PURPOSE:To steadily execute dehydration by suppressing the waving vibrations of a washing tub generated from biasing, etc., of wash by plural variable dampers disposed between the bottom of a main body of a spinning machine and the bottom of the washing tub. CONSTITUTION:A spinning tub 2 is hung down by hanging rods 3 into the main body 1 of the washing machine. The waving vibrations of the washing tub 2 generated from biasing, etc., of the wash are detected by plural vibration detectors 4. A controller estimates the degree of inclination of the washing tub 2 by the signals obtd. from these plural vibration detectors 4 and suppresses the waving vibrations of the spinning tub 2 by changing the viscosity of the variable dampers 5 disposed between the bottom of the main body 1 of the washing machine and the bottom of the spinning tub 2.
Patent JP-2001144900-A (JP)
Title: Picture reader
Inventor: MAEHARA TAKAAKI
IPC: G06T1/00
Filed: 1999-11-16
Abstract: PROBLEM TO BE SOLVED: To provide a picture readers which can speedily read monochromatic picture information from an object to be read by high resolution and can simultaneously read color picture information with precision by securing gradation even by low resolution. SOLUTION: An R line sensor 27R, a G line sensor 27G and a B line sensor 27B forming color resolving filters of different wavelength selection and a monochromatic line sensor 27W without forming a color resoling filter are provided on an image sensor 27. Color image information is read from an original 1 by the R line sensor 27R, the G line sensor 27G and the B line sensor 27B and monochromatic picture information is simultaneously read by the sensor 27W.
Patent JP-2000150712-A (JP)
Title: Mounting wiring board and mounted circuit device
Inventor: KOIZUMI HIROAKI
IPC: H01L21/60
Filed: 1998-11-16
Abstract: PROBLEM TO BE SOLVED: To enhance a mounted circuit device in general-purpose properties so as to enable it to cope easily with a change in a circuit design. SOLUTION: A mounting wiring board is equipped with a wiring board main body 5, first connection pads 6a, 6b... where the electrodes of a semiconductor chip provided on the primary surface of the wiring board main body 5 are electrically connected, mounting patterns 7a, 7b,... whose one ends are each connected to the first connection pads 6a, 6b... and other ends are led out toward the periphery, second connecting pads 8a, 8b... where the other ends of the mounting patterns 7a, 7b,... are connected, and signal wirings 9a and 9h electrically connected to the second connecting pads 8a, 8b... and arranged on the wiring board main body 5. At this point, the connection of the mounting patterns (repairing patterns) 7a, 7b,... are so formed and arranged as to be electrically disconnected from the second connecting pads 8a, 8b....
Patent JP-H03185316-A (JP)
Title: Apparatus for automatically weighing potato or the like
Inventor: FUJINO KOSABURO
IPC: G01G17/00
Filed: 1989-12-15
Abstract: PURPOSE:To enable weighing and packing of vegetables and fruits such as potatoes having thin skins, without impairing the skins, by a construction wherein a weighing hopper is guided into an empty box in accordance with the own weight of goods to be weighed which are conveyed in from a conveyor belt and the goods are packed in the empty box by opening the bottom plate of the hopper when the hopper recedes after weighing. CONSTITUTION:Goods to be weighed which are conveyed by conveyor belts 8a and 8b provided for a large amount of them and one of them respectively are conveyed into a bottomed weighting hopper 5 which is drawn up to an upper position and stands by with a minimum head. As the own weight of the goods to be weighed is increased by conveying-in, the weighing hopper 5 itself lowers and proceeds into an empty box B on a weigher. When the goods in a prescribed amount are conveyed into the weighing hopper 5 and the drive of the conveyor belt 8 is stopped and when the weighing hopper 5 reaches a lowering end position, the bottom plate of the hopper 5 is opened, while the hopper 5 itself rises, and the goods in the prescribed amount put in the hopper 5 are packed in the empty box B with a minimum impact.
Patent JP-H03187129-A (JP)
Title: Magnetron for microwave oven
Inventor: MATSUSHITA SABURO
IPC: H01J23/15
Filed: 1989-12-15
Abstract: PURPOSE:To perform stable operation even in case power supply frequency is higher than business frequency by a method wherein, in a through conductor of a high voltage capacitor type input terminal, a thin copper layer of the specific thickness is stuck to a core of an iron material, further thereon a tin layer or a zinc layer thinner than the copper layer is stuck. CONSTITUTION:In a through conductor 21 of a high voltage capacitor type input terminal, a core 29 of an iron material is coated with a copper layer 30 having the thickness not less than 50mum and not exceeding 500mum, while the copper layer is coated with a thin layer or a zinc layer 31 having the thickness not less than 2mum and exceeding 10mum. Accordingly, even when high voltage and cathode input is impressed from powder supply inverted to 10 to 100kHz by an inverter on a high voltage capacitor type input terminal, skin resistance of the through conductor 21 is reduced while suppressing the decrease in a filament current. Further, surface oxidation of the through conductor 21 is prevented and a boiling phenomenon at the time of welding to a choke coil is little thus improving weldability. Thereby, stable operation can be performed even when powder supply frequency is raised above business frequency.