baber/WOPTO huggingface dataset:
Patent JP-S61151808-A (JP)
Title: Rotary head type magnetic recording and reproducing device
Inventor: OHASHI TOMONORI
IPC: G11B5/024
Filed: 1984-12-25
Abstract: PURPOSE:To attain the erasion along a recording track by using an erasion head also to a recording head and using an erasion timing control circuit to control the erasion current supplied to the head. CONSTITUTION:The signal Sv showing the rotary phase of a drum is supplied to a multiplier 8 from a terminal 26 as well as to a divider 9. The multiplied signal CK is used as the clock signal of a counter circuit 10, and the divided signal Sx is used as the reset signal. Thus the circuit 10 functions as a 30-notation counter. Then the counter output Co is supplied to a timing pulse generator 11 for production of a signal Pa which is set at H at the preset counter values 0, 12 and 24, for example as well as a signal Pb which is set at H with the counter values 6, 18 and 24 respectively. Then the switches 13a and 13b which control the output of an erasion current oscillator 12 are controlled. The outputs of these switches 13a and 13b are sent to heads 1a and 1b for recording/erasing operations for a due period.
Patent JP-2001102593-A (JP)
Title: Method for fabrication of thin film transistor
Inventor: MORITA YUKIHIRO
IPC: H01L21/336
Filed: 1999-09-30
Abstract: PROBLEM TO BE SOLVED: To enhance the characteristics and reliability of a polysilicon thin film transistor on a glass substrate by reforming the interface between polysilicon having many interfacial levels and a gate insulating film formed by plasma CVD or atmospheric pressure CVD. SOLUTION: A polysilicon film is heated selectively and oxidized and nitrided by performing lamp annealing in an atmosphere of hydrogen nitride compound, nitrogen oxide compound or a mixture thereof. Since a compact interface of polysilicon and gate insulating film having small number of interfacial levels is formed, a polysilicon thin film transistor having enhanced transistor characteristics and reliability is obtained.
Patent JP-H05120136-A (JP)
Title: Disk cache device
Inventor: SASAMOTO KYOICHI
IPC: G06F13/36
Filed: 1991-10-25
Abstract: PURPOSE:To increase the memory access speed and to improve the system performance by inserting a disk cache device between a host device and a fixed disk device. CONSTITUTION:A data transfer control part 7 controls the transfer of data between a host device 1 and a fixed disk device 2, between the host device 1 and a disk cache device 3 itself, and also between both devices 2 and 3 respectively. At the same time, a cache memory control part 8 writes and reads the data into and out of a cache memory 4. Therefore the disk cache device 3 retrieves the contents stored in the cache memory 4 by the access request given from the host device 1. Then the disk cache device 3 reads the requested data out of the cache memory 4 if stored. If not, the data is read out of the fixed disk device 2. In such a constitution, it is just required to apply the processing procedure similar to that of the fixed disk device 2 to the host device 1.
Patent JP-H05122782-A (JP)
Title: Acoustic reproduction device
Inventor: YAGI HIROSHI
IPC: H04R1/00
Filed: 1991-10-25
Abstract: PURPOSE:To realize the faithful acoustic reproduction by reducing the harmonic distortion to be generated from a speaker unit without distorting the output even when a signal which a speaker unit can not reproduce is inputted. CONSTITUTION:A generation of harmonic distortion due to the excess amplitude of a speaker unit 4 is prevented and the faithful acoustic reproduction can be realized by an enclosed speaker cabinet 5 with at least one plane, a high frequency pass circuit 3 taking the lowest resonance frequency of the speaker unit 4 fixed inside of the cabinet 5 as breaking frequency, and the speaker unit 4 mounted on the front surface.
Patent JP-H02127936-A (JP)
Title: Press-contacting and joining method for pressure tube and extension tube
Inventor: KIMOTO HIROSHI
IPC: G21C1/20
Filed: 1988-11-07
Abstract: PURPOSE:To firmly join a pressure tube by inserting the pressure tube into the outside surface side of an inner sleeve of a tube end part of an extension tube, while bringing the pressure tube to tube expansion, pressing an outer sleeve against the outside surface of the pressure tube and fitting it in and forming them as one body. CONSTITUTION:A tube end part of a pressure tube 1 made of a zirconium alloy is pressed against a tube end part of an extension tube made of a different kind of steel. Subsequently, the pressure tube 1 is inserted into the outside surface side of an inner sleeve 2 provided on a tube end part of the extension tube, while bringing the pressure tube to tube expansion. Thereafter, an outer sleeve 3 is fitted into the outside surface side of the pressure tube 1 which is brought to tube expansion, while pressing the outer sleeve against said outside surface side, and they are formed as one body. In such a way, the pressure tube can be joined firmly.
Patent JP-H04159441-A (JP)
Title: Engine
Inventor: SATO YOSHINORI
IPC: F02F1/20
Filed: 1990-10-19
Abstract: PURPOSE:To eliminate accumulation of a combustion product material in a peripheral groove of an oil ring by providing a cylinder groove, to which a position of a lower part sliding surface of the oil ring is inserted in a lower position direction, in a cylinder wall in the lowermost step position in a sliding range of the oil ring mounted to a ring groove of a piston. CONSTITUTION:An oil ring 10 for piston is mounted to a ring groove 12 of the piston 11, and a peripheral surface of the oil ring 10 is energized so as to come into slide-contact with a cylinder wall 14a of a cylinder 14 by a coil spring 13 mounted to an internal peripheral surface of the ring 10. Two sliding surfaces 15, 16, brought into slide-contact with the cylinder wall 14 and divided into the upper and lower, are formed so as to extend in the peripheral direction on the peripheral surface of the oil ring 10, and a peripheral groove 17 is formed between both the sliding surfaces 15, 16. Here, a cylinder groove 18, which is provided not passing through a position of the upper sliding surface 15 but through a position of the lower sliding surface 16 in a lower position direction, is provided in the cylinder wall 14a in the lowermost step position in a sliding range of the oil ring 10. In this way, a combustion product of carbon or the like is impeded from accumulating in space of the peripheral groove 17.
Patent JP-H09119102-A (JP)
Title: Pavement structure
Inventor: SUZUKAWA KENJI
IPC: E01C5/06
Filed: 1995-10-26
Abstract: PROBLEM TO BE SOLVED: To improve durability while hardly slipping at running or walking by constituting a display object provided between pavement bases out of a water permeable block so as not to stay rain water at a rainfall or after a rainfall. SOLUTION: A display object provided between pavement bases 2, 2 made of compact grading asphalt concrete and the like is constituted out of a water permeable ceramics block 1 or the like. In this water permeable block, it is favorable that the coefficient of permeability measured by JIS-A-1218 is over 1×10<-2> cm/sec, and the bending strength measured by JIS-A-5304 is over 50kgf/ cm<2> . This water permeable block is favorable so that the thickness is 60-100mm and the surface Mohs' hardness is over 6. Further it is favorable the slide resistance value in the wet state measured by ASTM-E-303 is over 40 BPN.
Patent JP-H01122091-A (JP)
Title: Method for detecting thickness of insulating film
Inventor: NAGASHIMA ZENICHI
IPC: G11C11/14
Filed: 1987-11-05
Abstract: PURPOSE:To attain a non-destructive inspection by forming a permalloy film on it, measuring its anisotropic magnetic field and detecting a film-thickness when the thickness of an insulating film on a monocrystal film is detected in the manufacture of a bubble memory. CONSTITUTION:A bubble memory consists of a monocrystal film 2 made of magnetic garnet prepared on a substrate 1, an insulating film 3 formed so as to cover its whole surface and a permalloy film 4 fitted on the film 3. At this time, the permalloy film is formed on the film 3, its anisotropic magnetic field is measured and the thickness of the film 3 is detected from its minimum value. That is to say, a proportional relation is formed between the thickness of the film 3 and the minimum value of the anisotropic magnetic field and the thickness of the film 3 can be detected from this. Thus, the non-destructive inspection can be attained and the lowering of yield can be prevented.
Patent JP-H05194410-A (JP)
Title: 1,1'-bis(3-aminopropyl)-2,2'-diimidazole
Inventor: FURANTSU MERUGAA
IPC: C07D233/90
Filed: 1992-10-19
Abstract: PURPOSE: To prepare a new 2,2'-diimidazole derivative having improved characteristics and usefull, particularly, as epoxy catalysts, diamines for obtaining a new polyamide having an imidazole structural unit, and complexing agents for preventing corrosion.  
     CONSTITUTION: 1,1'-Bis(3-aminopropyl)-2,2'-diimidazole expressed by formula I can be prepared by reacting 2,2'-diimidazole of the formula II with acrylonitrile of formula III in the presence of basic catalysts at from 80 to 150°C and thereafter executing hydrogenation with excess hydrogen in the presence of ammonia on catalysts contg. Co, Ni, Rh and/or noble metals at from 40 to 200°C under a pressure from 10 to 200 bar. 
     COPYRIGHT: (C)1993,JPO
Patent JP-2000107788-A (JP)
Title: Mechanism for accelerating flow velocity in channel bottom
Inventor: OIDE KOSUKE
IPC: C02F3/14
Filed: 1998-10-01
Abstract: PROBLEM TO BE SOLVED: To provide a mechanism of accelerating a flow velocity in a channel bottom wherein contaminant sand and sludge are prevented from settling and accumulating in the bottom of a channel part by compensating decrease in flow velocity in the bottom, in a water channel having a large water flow resistance such as curved water channel of a river, an endless circulation channel of an aeration tank for executing a biological treatment of an organic foul water such as sewage water or the like. SOLUTION: In a channel 10 having a water flow a rotary blade 2 disposed at a water face level and provided with rotary drive force by use of water flow energy in a vicinity of a free surface, a water flow generating blade 4 disposed at a bottom position for accelerating flow speed in a bottom of a channel and a drive force transmission means 3 for transmitting the rotary drive force given by the rotary blade 2 to the water flow generating blade 4 are equipped.
Patent JP-H01120519-A (JP)
Title: Focus detecting device
Inventor: SUDA YASUO
IPC: G03B3/00
Filed: 1987-11-05
Abstract: PURPOSE:To detect the focusing of an objective lens by providing a mask, a field lens, an image re-forming means and a photoelectric conversion means, setting the opening of the mask in a desired way and correcting the difference of the ways that luminous fluxes passing through the opening are image-formed differently by means of the field lens. CONSTITUTION:The field lens 50 is arranged near the expected image forming surface of the objective lens and adjacent to the mask 42 opened in parallel. A light quantity distribution based on images of an object is created, and the relative positions of the object vary according to the way that the field lens 50 and the objective lens are focused through image re-forming lenses 51 and 52. Plural photoelectric conversion element columns 55 receive said distribution. The arranging direction of the opening of the mask 42 is optically orthogonal with that of image elements, and one side of the opening is set so that it is close to the distribution. Ultimately, the field lens 50 corrects the difference between a formed image appearing in a luminous flux passing through the opening close to the optical axis of the objective lens and a formed image appearing in a luminous flux passing through the opening farther the optical axis. Under this constitution, the detecting accuracy of a focus in the central part of a range finding visual field is kept high the same as in its outside, and a multipointed range can be found.
Patent JP-S62270564-A (JP)
Title: Pyrazine derivative and inhibitor of blood platelet aggregation containing same
Inventor: WAKABAYASHI TOSHIO
IPC: A61P7/02
Filed: 1986-11-26
Abstract: NEW MATERIAL:A pyrazine derivative shown by formula I (X is H, halogen, lower alkyl, lower alkoxy or di-lower alkylamino). EXAMPLE:2,3-Bis(p-methoxyphenyl)-5-methylpyrazine. USE:A drug useful as an inhibitor of blood platelet aggregation. Extremely suppressing inhibitory action on blood platelet aggregation derived by arachidonic acid or collagen and useful for preventing especially myocardial infarction, ischemic attach after cerebral apoplexy, thrombosis such as cerebral infarct, etc. Being expected to be useful as anti-inflammatory drug because of inhibitory action on cyclooxygenase. PREPARATION:For example, a benzyl derivative shown by formula II is reacted with a 1,2-diamine derivative shown by formula III in an organic solvent such as ethanol, etc., to give a dihydropyrazine shown by formula IV, which is heated with sulfur at 100-180 deg.C to give a compound shown by formula I.
Patent JP-H11121711-A (JP)
Title: Manufacture of capacitor, manufacture of semiconductor device capacitor and semiconductor device capacitor
Inventor: SHIBANO TERUO
IPC: H01L27/108
Filed: 1997-10-14
Abstract: PROBLEM TO BE SOLVED: To form a capacitor in a specific capacity by a method wherein the first metallic films having ruthenium is exposed to oxygen plasma to form a dielectric on the first metallic films further to form the second metallic film having ruthenium on the dielectric. SOLUTION: A titanium film is formed on a silicon oxide film 2 so as to form the first metallic films 5a having a metal containing ruthenium. The first metallic films 5a are treated by oxygen plasma. Next, after depositing a high dielectric film 7, the second metallic film 8 is formed. In such a constitution, the irregularities are formed on the surface of the first metallic films 5a due to the growth by the rearrangement caused by the exposition of the first metallic films 5a to the oxygen plasma. Accordingly, the surface area of the first metallic films 5a and the second metallic film 8 opposing to the former films 5a is increased. Thus, even if the height h of the first metallic films 5a is lowered the surface area similar to the conventional one can be secured, thereby enabling the capacitor in a specific capacity to be formed.
Patent JP-H03142451-A (JP)
Title: Image forming device
Inventor: SAKAKIBARA KENJI
IPC: G03D13/00
Filed: 1989-10-28
Abstract: PURPOSE:To shorten a time for lowering carrying speed and to decrease the slackening quantity of recording paper by supplying a pressure-developing device with sensitized pressure sensitive recording paper and developing paper and closing it, and lowering the recording paper carrying speed after load fractuation is completed. CONSTITUTION:A main CPU 31 outputs a microcapsule paper 13 carrying signal to a carrying control microcomputer 32 and drives a second carrying motor 41. After the prescribed length of the paper 13 is carried, the microcomputer 32 starts the supply of the developing paper 21, and a roller opening closing control microcomputer 33 drives a roller opening closing control motor 44 to start the closing operation of a roller 23a and 23b. When a prescribed time lapses after the microcomputer 33 detects that the ratio of duty applied on the motor 44 reaches an upper limit, the microcomputer 32 shifts the paper 13 carrying speed of the motor 41 to low. Afterward, when the microcomputer 33 outputs a signal completing press-contacting the paper 13 and 21, the microcomputer 32 shifts the carrying speed of the motor 41 from the low to high.
Patent JP-H10126185-A (JP)
Title: Manufacture of vibrator
Inventor: YAGI YUJI
IPC: H03H9/19
Filed: 1996-10-23
Abstract: PROBLEM TO BE SOLVED: To simplify the positioning of electrodes and to improve the reliability in the forming process of exciting electrodes of the vibrator used for various electric devices. SOLUTION: A recessed part 1c is formed around each vibrating part 1a of a diaphragm 1, projections 2b each having the same shape as each recessed part 1c are provided to a mask 2 for forming a pattern of exciting electrodes and they are fitted respectively together to position a mask pattern 2a of the exciting electrodes is positioned to a regular position of the vibration parts 1a. Since the patterns are positioned only with fitting of the recessed parts and the projections, positioning work is simplified, generation of dust during the work is prevented, and the yield is improved.
Patent JP-H03144169-A (JP)
Title: Transmission for vehicle
Inventor: UMEMOTO TOMEO
IPC: F16H3/08
Filed: 1989-10-27
Abstract: PURPOSE:To increase the car speed in a simple manner by installing a meshing part which generate the higher speed than the maximum stage transmission of a main speed change device oppositely to the transmission, on the side surface of the low speed side idler gear of a high/low speed change device and connecting/disconnecting the meshing part by a shifter. CONSTITUTION:When the shifter 43 of a high/low speed change device 46 is operated in the H-direction, a shaft 12 on the engine side and a speed change shaft 13 are connected, and set at a high speed position. Further, when the shifter 43 is operated in the L-direction, the shifter 43 is interlocked with the speed change shaft 31 through an idler gear 39, and set at a low speed position. Accordingly, two-stage speed change at high and low speed is carried out by the shifter 43. The first and second speed are obtained by the shifter 42 of a main speed change gear 30 at the 1F and 2F positions, and when a shifter 44 is direction-positioned at 3F and 4F positions, the third and fourth speed are obtained. The fourth speed is obtained by the engagement of the shifter 44 with a meshing part 39A formed on the side surface of the idler gear 39, and for example, a car speed of 40km/h can be obtained. Accordingly, the car speed can be increased without changing a gear train, etc.
Patent JP-H0594290-A (JP)
Title: Data flow chart verifying device
Inventor: INOUE FUJIO
IPC: G06F9/06
Filed: 1991-09-30
Abstract: PURPOSE:To automatically verify the description error of an executing order by chasing the executing order of processes set to a table by developing it to a route list, and executing error display by judging the circulation of the executing order when the same process appears. CONSTITUTION:A monitor display 9 used for preparing a data flow chart, keyboard 10 and mouse 11 or the like are connected through an interface 8 to a data flow chart preparation part 6, and the data flow chart prepared at the data flow chart preparation part 6 is stored in a data flow chart file 7. In this case, a data flow chart verifying device 1 extracts the executing order relation of processes from the data flow chart in the data flow chart file 7 by using an executing order extraction part 2. The extracted executing order relation is registered on a table 3, and the route of data flowing between processes is developed from the contents to a route list 5 on a memory. During the process, it is verified whether the data flow chart can be successively executed or not and when it can not be executed, error output is executed.
Patent JP-H11116243-A (JP)
Title: Carbon monoxide sensitive thin titanium dioxide film, gas sensor using same and production of thin titanium dioxide film
Inventor: HIRANO SHINICHI
IPC: G01N31/22
Filed: 1997-10-14
Abstract: PROBLEM TO BE SOLVED: To obtain a sensor material which acts at low temp., has high gas selectivity to CO and can detect CO with high sensitivity. SOLUTION: A film of a film forming soln. giving a metallic compsn. consisting of 0.01-3 mol.% at least one group VIII element selected from the group consisting of Fe, Co and Ni, 0.05-5 mol.% noble metallic element and the balance Ti is formed on a ceramic substrate, dried, pretreated in an oxidizing atmosphere, fired at 350-600 deg.C in a reducing atmosphere and further heated in an oxidizing atmosphere to obtain the objective CO sensitive thin titanium dioxide film consisting of 0.01-3 mol.% of the selected group VIII element, 0.05-5 mol.% of the noble metallic element and the balance titania.
Patent JP-2001096192-A (JP)
Title: Electrostatic precipitator
Inventor: OSADA MASASHI
IPC: B03C3/64
Filed: 1999-10-01
Abstract: PROBLEM TO BE SOLVED: To provide an air cleaner which is meant for its modification into a thin version with a function to capture dust contained in air and the simplification of an assembly work and further, is equipped with dust collecting elements. SOLUTION: The electrostatic precipitator is structured of a plurality of protruding electrode support parts 6 arranged at the upper end parts of high voltage electrode 5 of a collector part disposed in parallel with an air flow, in such a way that the electrode support parts 6 are disposed at a specified interval in the longitudinal direction of the alignment of the upper end parts of the electrodes 5. The wirelike discharge electrodes 2 of an ionization part are supported by fastening the electrode support parts 6.
Patent JP-H05122080-A (JP)
Title: Digital/analog converter
Inventor: KUDO OSAMU
IPC: H03M1/78
Filed: 1991-10-28
Abstract: PURPOSE:To eliminate the need for an adjustment work accompanied by the error of a resistance element in a chip by pulling out both end of a resistor for monitoring the current to the outside of the chip and connecting a prescribed exterior resistor to the end of the pulling part. CONSTITUTION:Both end of the resistor for monitoring current RREF is pulled out to the outside of a common substrate which forms the resistor for monitoring current RREF and R-2R rudder resistor network 21 so as to connect the prescribed exterior resistor RREF' to it. When the impedance value of the R-2R rudder resistor network 21 viewed from an analog output terminal 30 is set to be RO and the impedance value of a circuit connected to the analog output terminal 30 is set to be RL, it is desirable that the value of the exterior resistor RREF' is set in accordance with a next formula RREF'=(RREF/RO)XRL so as to satisfying the relation of RO:RREF=RL:RREF'. Like knowing from this, RREF' is directly proportional to RL and the proportional coeficient is given as the ratio of the monitoring resistor RREF and the combined resistance value of the rudder resistor network 21. As they are formed o the common substrate in the same process, the error in production is equal and the value of the ratio is stable.
Patent JP-H03142321-A (JP)
Title: Optical displacement sensor
Inventor: ASANUMA KAZUYUKI
IPC: G01D5/26
Filed: 1989-10-27
Abstract: PURPOSE:To detect a minute extent of displacement with high precision by providing a converging rod lens, which can be displaced in the direction orthogonal to a central axis by interlocking the extent of displacement to be measured, and first and second optical fibers. CONSTITUTION:A rod lens 1 has the refractive index distribution parabolically reduced toward the periphery from the central axis, and light is transmitted in this lens 1 with a certain period. Length (l) of the lens 1 is determined as about 1/2 pitch of the period. When optical fibers 2 and 3 are arranged on both end faces of the lens 1 a length X apart from an axis C with a central axis C as the axis of symmetry, light 4 emitted from the optical fiber 2 is made incident on the optical fiber 3 without loss, and optical fibers 2 and 3 are optically coupled. When a relative positional relations between optical fibers 2 and 3 are fixed and the lens 1 is displaced in the direction orthogonal to the axis by a length DELTAX, the light emitted from the optical fiber 2 is not made incident on the optical fiber 3 and optical coupling is eliminated. If the length DELTAX is shorter, a part of the light is made incident on the optical fiber 3. Since the optical coupling efficiency corresponds to the extent of displacement of the lens 1 from the origin position, the extent of displacement is detected by the extent of reduction of the coupling efficiency.