baber/WOPTO huggingface dataset:
Patent JP-H09258188-A (JP)
Title: Liquid crystal display element and its production
Inventor: FUJIMORI KOICHI
IPC: G02F1/1333
Filed: 1996-03-26
Abstract: PROBLEM TO BE SOLVED: To make the helical pitch of a liquid crystal a desired pitch. SOLUTION: When phase separation of a liquid crystal material from a photopolymerizable resin is performed so as to obtain a liquid crystal region 4 comprising the liquid crystal material surrounded with a polymer wall 7 in a display medium formed between a pair of substrates 1a, 1b, the liquid crystal material is slowly cooled to near room temp. after irradiation of light. In this method, a liquid crystal material mixed with a chiral agent which shows such characteristics that the natural pitch p does nor change with temp. increase or the pitch decreases with temp. increase is used as the liquid crystal material of the display medium.
Patent JP-H04313296-A (JP)
Title: Printed wiring board
Inventor: YOSHIDA KAZUYUKI
IPC: H05K3/46
Filed: 1991-04-03
Abstract: PURPOSE:To provide a printed wiring board in which a density of the board can be enhanced, an inexpensive board can be supplied, components to be placed can be mounted in a high density, and soldering quality is improved. CONSTITUTION:After a hole 6a of a BVH 6 is completely buried with resin of a prepreg 7 by using melting flow of the prepreg 7 at the time of laminating a multilayer board, conductive plating 8 is executed on the opening resin surface of the BVH 6 at the later time of steps of through hole plating 6b thereby to flatten a foot printed surface, and fluidity of solder at the time of reflow soldering is improved.
Patent JP-H05274342-A (JP)
Title: Electronic dictionary device
IPC: G06F17/22
Filed: 1992-03-27
Abstract: PURPOSE:To retrieve and display the fundamental side word concerned and the corresponding side word in the electronic dictionary device at a high speed. CONSTITUTION:A dictionary area 22 is divided into eight pieces of memory banks, and English words and German words are stored in the banks 1-4, and the banks 5-8, respectively. When an English word to be retrieved is subjected to key input and stored in a RAM 13, when a 'search' key 14A is operated, a CPU 11 executes a retrieval to the bank 4 in the order from the bank 1 of the dictionary area 22, reads out a word and a pointer of the word concerned, the word is expanded and displayed in a VRAM 15A of a display part 15, and the pointer is stored in the RAM 13. Thereafter, the next word is retrieved and displayed, and after the display is executed to a fourth line, the pointer is read out of the RAM 13, and a word of a German word corresponding to each English word is read out of the dictionary area 22 and displayed on the display part 15.
Patent JP-H0640365-A (JP)
Title: Connecting joint for intra-conduit traveling bogie
Inventor: YANO YOSHITAKA
IPC: B61G1/00
Filed: 1992-03-27
Abstract: PURPOSE:To provide the connecting joint of an intra-conduit traveling bogie capable of smoothly traveling long bogie units in the tube axial direction in a bent conduit having a small radius of curvature. CONSTITUTION:Bogie units 1, 2 have moving wheels 8 and are connected via circular arc-shaped round bars 4, 6 at both ends and a connecting bars 5. The center axis of the front round hole 7 of the connecting bar 5 and the center axis of the rear round hole 8 are made perpendicular to each other, and the circular arc-shaped round bars 4, 6 are movably inserted into both round holes 7, 8.
Patent JP-H08267763-A (JP)
Title: Ink jet recording head and its manufacture
Inventor: KAWAKAMI HARUO
IPC: B41J2/045
Filed: 1995-03-29
Abstract: PURPOSE: To make the flow passage intervals small by forming a piezoelectric layer by the hydrothermal synthesizing process or the gas deposition process in a structure of forming all flow passages all through from an outlet of a restriction up to nozzles working as pressurizing chambers, and forming a piezoelectric layer, in which piezoelec tric elements are bonded on the surfaces of vibration plates of the pressurizing chambers. CONSTITUTION: A melting component of a piezoelectric material composed of PZT ceramic can be separated into hot water of high temperature and high pressure only by the hydrothermal synthesizing process as a special synthesizing process, by utilizing the above stated features a non-separated section is bonded by a non-titanium metal, and then the piezoelectric material is separated to form piezoelectric element. A restriction 13, a pressurizing chamber 14a, a nozzle 15a and the like are provided on a synthetic resin base 11a, for example, a polyether resin base, and a polyether amide resin sheet 16a is bonded on the base 11a as a vibration plate, and further conductive layers 1 and 1a on which piezoelectric elements 2 and 2a are formed are bonded thereon.  The width of the pressurizing chamber can be narrowed by the large jet amount of ink generated by the deformation of piezoelectric elements, by which the intervals of nozzles can be narrowed.
Patent JP-H06259865-A (JP)
Title: Disk reproducing device
Inventor: HISATOMI YUICHIRO
IPC: G11B17/26
Filed: 1993-03-05
Abstract: PURPOSE:To move a disk to a reproducing means and a stocker by one driving source by selectively transmitting driving force from the driving source to a disk reproducing means moving mechanism or a stocker moving mechanism in response to displacement of a disk moving means. CONSTITUTION:A carriage is selected, and a motor 231 is started to rotate in order to move the stocker vertically in response to this selection. An input gear 116 of a planetary gear mechanism 100 is rotated by rotational force of the motor 231 via a rubber belt 32, a worm gear 111 and a reduction gear 112. By this method, cam base chassis 13 is moved to the right to draw out a carriage positioned on the uppermost stage. In this position, a rubber provided at a tip of a 2nd arm 62 of a change arm 44 is brought into press-contact with an outer circumference of a reduction gear 115, thus transmitting the rotational force of the motor 231 to a 2nd output gear 119 of the mechanism 100. Consequently, a pin 186 provided on a damper base 180 for supporting an optical mechanism is raised by a cam groove 101, so that recorded information is reproduced.
Patent JP-S60216948-A (JP)
Title: Manufacture of air-permeable forming die
Inventor: USUI MASAYOSHI
IPC: B22C1/08
Filed: 1984-04-10
Abstract: PURPOSE:To obtain a forming die having excellent permeability, high strength, high hardness, and resistant to wear, by casting a slurry, obtained by blending iron powder, heat-resistant compound, and aqueous solution of soluble chromic compound, and hardening it before impregnating it with an conc. aqueous solution of chromic acid and heating it. CONSTITUTION:A powder of iron or iron-base alloy and a heat-resistant oxide such as SiO2, or carbide or nitride, etc. are blended together. A slurry, obtained by adding said blended matter to an aqueous solution of chromic acid or soluble chromic compound containing chromic acid, is prepared. The slurry is cast and dried, to harden it by heating. The hardened body is impregnated with a conc. aqueous solution of chromic acid, and is heated. This impregnating-heating treatment is repeated at least once. Further, at need, the impregnating-heating treatment by the conc. aqueous solution of chromic acid is performed after providing precision work to said body. By this method, a forming die, having desired pore size, pore distribution, and excellent permeability, is obtained without the need for a vent mechanism.
Patent JP-H10269681-A (JP)
Title: Information recording/reproducing device
Inventor: WATABE TETSUO
IPC: G06K17/00
Filed: 1997-03-25
Abstract: PROBLEM TO BE SOLVED: To make possible adding another additive recording/reproducing means for basic device constitution at need with a simple shape by providing a separate recording/reproducing means attachable/detachable for a main body and a control means discriminating the presence of its means and allowing recording or reproducing. SOLUTION: A drive mechanism part 80 drives an optical card 66 in the card long side direction, and a motor 56 and a belt 55 drive a card placing base 52 in the short side direction for an optical recording medium added onto a card C, and information is recorded/reproduced. Moreover, a magnetic head mechanical part 72 and an IC head mechanical part 89 respectively constituted as single unit are able to be fitted easily and attachably/detachably onto a substrate loading the drive mechanical part 80. Wires respectively short- circuiting a set of contacts are provided in connectors connecting these units to a control substrate in the device main body, and even when respective heads are connected separately, automatic discrimination is made possible, and the matter that the recording/reproducing is allowed separately is made possible.
Patent JP-H07254638-A (JP)
Title: Semiconductor device
Inventor: SHUDO SUSUMU
IPC: H01L21/76
Filed: 1994-03-16
Abstract: PURPOSE:To enhance the withstanding voltage of gate by protecting the upper end part of a semiconductor substrate, abutting on an isolation region, with an insulating film thicker than a gate oxide thereby avoiding kink in the sub- threshold region of a transistor. CONSTITUTION:An insulator 7 composing an isolation region is deposited while projecting from the upper end face of a trench 6 made in the surface of a semiconductor substrate 1 and an insulator 5 is deposited thicker than a gate oxide forming an element region on the upper end part (corner part) of the semiconductor substrate 1 abutting on the isolation region. Since the corner part of semiconductor substrate abutting on the isolation region is protected by the insulating film 5, concentration of the field at a corner part can be relaxed effectively. Since a state where the threshold value of parasitic transistor is lower than an actual threshold value can be avoided, kink can be avoided in the sub-threshold region of a transistor while enhancing the withstanding voltage at the gate thereof.
Patent JP-H07264009-A (JP)
Title: Automatic frequency controller
Inventor: HARADA KENJI
IPC: H04B1/40
Filed: 1994-03-16
Abstract: PURPOSE:To provide an inexpensive and compact automatic frequency controller comprised of equipment of small scale. CONSTITUTION:Frequencies outputted from a frequency divider 29 which frequency-divides a second intermediate frequency that is reception input and a frequency divider 30 which frequency-divides the reference frequency of a reference oscillator 24 are phase-compared by a phase comparator 31, and difference is integrated by an integrator 32, and is converted into data by an A/D converter 28. A microcomputer control part 27 judges phase error polarity from the data, and changes the correction voltage of a voltage switch 26 to the reference oscillator 24. The voltage of the voltage switch 26 is changed by stages, and since the width of change of the reference frequency due to change in one stage is narrow than an allowable error range, the microcomputer control part 27 can judge that the reference frequency is within the allowable error range when the phase error polarity is inverted by the change of a correction voltage.
Patent JP-H06286237-A (JP)
Title: Color thermal printer
Inventor: SHIRAFUJI MASAYOSHI
IPC: B41J11/00
Filed: 1993-03-30
Abstract: PURPOSE:To avoid defects of paper feeding and printing by a method wherein a rotation control mechanism that allows rotation of feed roller in the paper- discharge direction and stops rotation in the backward direction in a color printer in which a platen roller is rotated back and forth to reciprocate a paper so that color print is performed. CONSTITUTION:In a color thermal printer, when a paper 3 is reciprocated, a film sheet which is sequentially coated with three colored inks each having different color is transported from a supply roller 5 to a winding roller 6 to be supplied to a position between a thermal print head 1 and the paper 3. When the first transportation of the paper in the paper-discharge direction R is executed, the print by one of the colored inks is executed by means of the print heat 1. In the same manner, different colored inks are sequentially overlapped on the paper to perform the printing, when the paper is transported in the paper- discharge direction R. In this type of printer, a rotation control mechanism 20 comprising a one-way clutch whereby the rotation of a plate roller 10 in the paper-discharge direction R is transferred to a shaft 15a of a feed roller 15 and the rotation of the platen 10 in the backward direction Q is nor transferred to the shaft 15a that is equipped with a ratchet mechanism, is provided.
Patent JP-S57185774-A (JP)
Title: Solid-state image pickup device
Inventor: DENDA MASAHIKO
IPC: H04N5/335
Filed: 1981-05-11
Abstract: PURPOSE:To obtain a solid-state image pickup element with a high fulfillment factor (ratio of photodetector area to chip area), by arranging optical sensors in parallel along left and right both sides of a vertical register and alternately using one vertucal register with two trains of optical sensors. CONSTITUTION:An incident light is converted into a signal charge at each P-N junction of optical sensors 13 and 14 for storage. First, when the 1st transfer gate 51 is opened, a stored charge of the sensor 14 is transferred to a vertical register 2 and read out from an output section 4 through a horizontal register 3. Next, the 2nd transfer gate 52 is opened and the stored charge of the sensor 13 is read out to the vertical register 2. The fulfillment rate of a solid-state image pickup device can be increased to 40%-60% without using an external signal processing means by using the charge stored in both the optical sensors 13 and 14 of the vertical register 2 to transfer alternately to the vertical register 2.
Patent JP-S52154926-A (JP)
Title: Carburetor of engine equipped with egr device
Inventor: KAGEYAMA GENGO
IPC: F02D21/08
Filed: 1976-06-17
Abstract: PURPOSE: To protect the fuel control system from carbon in the recirculation exhaust gas and prevent the decrease of combustion by dividing the suction path on the upperstream of the throttle valve into the fuel control path and the air path and opening the EGR path on the air path. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S58189263-A (JP)
Title: Coating fluid for sio2 film formation
Inventor: YAMAZAKI MITSUO
IPC: C09D183/00
Filed: 1982-04-28
Abstract: PURPOSE:To provide a coating fluid for SiO2 film formation excellent in storage stability, workability, etc., by incorporating as a principal component hydroxysilane (oligomer) given by the reaction of tetraalkoxysilane with water in the presence of a phosphate in an org. solvent. CONSTITUTION:Tetraalkoxysilane (e.g., tetramethoxysilane, tetraisopropoxysilane) is reacted with water in the presence of a phosphate of formula I or II (wherein R is 1-6C alkyl, aryl) etc. in an org. solvent such as methanol, propylene glycol, or acetone. The resulting hydroxysilane and/or oligomers thereof, as principal components, and, if necessary, org. solvents, surfactants, etc. are blended to give the intended coating fluid for SiO2 film formation. Said coating film can be applied onto substrates such as glass, metallic materials or by roll-coating, offset printing, etc.
Patent JP-H10271575-A (JP)
Title: Communication equipment
Inventor: AOKI HISASHI
IPC: B60R25/04
Filed: 1997-03-25
Abstract: PROBLEM TO BE SOLVED: To discriminate the propriety of data written in a nonvolatile memory. SOLUTION: A transmission signal is received by a transponder resonance circuit section 8 in a transponder 7. AC power is supplied by a power signal of the received signal and required data are written in a nonvolatile memory 12 based on contents of a command of the received signal. In this case, the write of data is controlled such that an end mark is written to a 3rd address after a corresponding address of the written data, a check sum is written to a first address after the address for the written data and then the data are written to the corresponding address.
Patent JP-S571124-A (JP)
Title: Crashed ice conveyor
Inventor: HIRAI SUSUMU
IPC: F25C5/00
Filed: 1980-05-27
Abstract: PURPOSE: To transport a crashed ice easily by providing an ice crashing room and a blower room in a movable casing, which is used when transporting the crashed ice from an ice room of a fisherboot, for making the inside pressure of the ice crashing room to be negative by means of the blower.  
     CONSTITUTION: When a blower 10 is operated, the air inside an ice crashing room 1A is evacuated from an air evacuation opening 11 to the outside. Therefor the air pressure inside the ice crashing room 1A becomes an negative pressure for a lid 6 to be pressed around the periphery of an exit 3 and also for the crashed ice inside an ice room 21 to be sucked into the ice crashing room 1A. When the amount of the ice reaches a certain prescribed quantity, the blower 10 is stopped. Owing to the stoppage of the blower 10, an outside air enters into the ice crashing room 1A to make the inside air pressure to return to the normal atmospheric pressure from the former negative pressure for the crashed ice to be evacuated through the exit 3 into a fish tank 22. Thus by opening/closing the lid 6 which covers the ice crashing room 1A from outside, the crashed ice can easily be fed to the fish tank 22 which needs the crashed ice. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H11272056-A (JP)
Title: Toner replenishing device
Inventor: MATSUSHITA KOJI
IPC: G03G15/08
Filed: 1998-03-20
Abstract: PROBLEM TO BE SOLVED: To provide a toner replenishing device capable of replenishing a toner to a developing device, accurately at a low cost. SOLUTION: This toner replenishing device is provided with a tank 7 containing the toner inside, the toner transporting roller 8 arranged at an open part 71 disposed on the tank 7 bottom, so as to approximately block the open part 71, and the toner controlling sheet S1 in contact with the roller periphery 83. The toner controlling sheet S1 is made in contact with the roller periphery 83 so as to block a gap 72 generated between the tank open part wall surface and the roller periphery 83. The sheet S1 can be attracted to the roller 8 by the static force by applying voltage between an electrode layer of the toner controlling sheet S1 and the roller 8, and the amount of replenishing the toner to the developing device 9 can be regulated by changing the static attraction force.
Patent JP-S61231683-A (JP)
Title: Graph input device
Inventor: HIRATA TAKAO
IPC: G06T3/00
Filed: 1985-04-05
Abstract: PURPOSE:To separate easily the shape line information of a drawing and other additional line information by providing a shape line extracting part to extract the point sequence data of the line for indicating the shape out of the point sequence data and a shape line data memory part to store the extracted shape line data. CONSTITUTION:The point sequence data to indicate the shape out of the point sequence data are extracted by a shape line extracting part 6, and the extracted shape line data are stored into a shape line data memory part 7. The stored point sequence data and the shape line data are displayed by a displaying part 8, and the line to be corrected or the point to be corrected are designated by a designating part 9 of the line or the point having the designating means to designate the line or the point displayed at the displaying part 8. By the shape line for which the designated line or point is corrected, the data are converted to vector information such as a circular arc, a straight line, etc., coded by a vector means 5, and outputted to a computer CP.
Patent JP-H01244673-A (JP)
Title: Blue-light emitting diode
Inventor: TAGUCHI TSUNEMASA
IPC: H01L33/28
Filed: 1988-03-26
Abstract: PURPOSE:To easily manufacture a practicable ZnS blue-light emitting diode with high luminous efficiency, by making the ratio of the resistivity of a high resistance crystalline zinc sulfide film and that of a zine sulfide single crystal substrate larger than or equal to a specified value. CONSTITUTION:On an N-type semiconductor ZnS single crystal substrate having a resistivity formed by iodine transport method, a high resistance epitaxial ZnS layer is formed, by low pressure MOCVD method using high purity dimethyl zinc diluted by He and hydrogen sulfide as raw material. In this process, the ratio of the resistivity of a ZnS film and that of a low resistance substrate is made larger than or equal to 1.0X10<6>. The above film and substrate are formed simultaneously on a high resistance GaAs substrate in the same MOCVD equipment. By spreading.stoving method, an In electrode is formed on the rear of the ZnS substrate. By vacuum evaporation method, a gold electrode is deposited. It is necessary that the ratio of the resistivity of the high resistance zinc sulfide film and that of the zinc sulfide single crystal film is larger than or equal to 1X10<6>. In the case where this ratio is less than 1X10<6>, luminescence is very weak and can not be almost recognized.
Patent JP-H06316859-A (JP)
Title: Method for treating fabric with high-pressure jet water stream
Inventor: BORIYAN ROBEERU
IPC: D06B5/08
Filed: 1991-03-12
Abstract: PURPOSE: To provide a method for simply treating a textile piece, wherein a structure of the textile piece can be improved without breaking continuous filaments in spun yarns constituting the textile piece and, if the plaiting spun yarns are yarns of continuous filaments obtained by adhereing microfilaments, the unitary microfilaments can also be individualized. CONSTITUTION: This method for treating a textile piece comprises the steps of subjecting the piece on a support screen to the action of jets of water at a >=4.10<6> Pa pressure. Thereby the structure of the textile piece is improved and unitary microfilaments are individualized. The method is applied to a textile piece, e.g. weave, knit or finished article, constituted wholly or partly by spun yarns of continuous filaments obtained by adhereing microfilaments, obtained by star or lamellar spinning, for example, comprising six to eight unitary microfilaments having a thickness of 0.2-0.4 dtex.
Patent JP-S57188597-A (JP)
Title: Preparation of 1,4-bis(hydroxydialkylsilyl)benzene
Inventor: ONODERA YUTAKA
IPC: C07F7/18
Filed: 1981-05-14
Abstract: PURPOSE: To obtain the titled compound useful as a raw material for heat- resistant silicone resins, etc. industrially and advantageously, by reacting a dialkylchloroalkyloxysilane with a specific bifunctional Grignard reagent, and hydrolyzing the resultant product in the presence of an acid.  
     CONSTITUTION: A dialkylchloroalkyloxysilane expressed by the formula R' 2 SiCl (OR) (R is ≥3C alkyl; R' is 1W5C alkyl) is reacted with a Grignard reagent dibromo-μ-1,4-phenylenedimagnesium expressed by formulaIto give a 1,4-bis (alkyloxydialkylsilyl)benzene expressed by formula II, which is then hydrolyzed in the presence of a mineral or organic acid, e.g. acetic acid, to afford a 1,4- bis(hydroxydialkylsilyl)benzene expressed by formula III. The acid is used in an amount of 0.005W0.05 equivalent based on one equivalent compound expressed by formula II. 
     COPYRIGHT: (C)1982,JPO&Japio