baber/WOPTO huggingface dataset:
Patent JP-H08204275-A (JP)
Title: Oscillation frequency stabilizing device and laser device
Inventor: MIYAGAKI KAZUYA
IPC: G02F1/37
Filed: 1995-01-26
Abstract: PURPOSE: To stabilize the oscillation frequency of a laser light source of multiple longitudinal mode oscillation. CONSTITUTION: An oscillation frequency stabilizing device is provided with a modulator 3 which modulates the phase or frequency of multiple-longitudinal- mode laser light emitted from a laser light source 1 which oscillates multiple longitudinal modes, frequency discriminator 6 to which the laser light from the modulator 3 is made incident and which discriminated the frequencies of the incident light by resonating the incident light at a prescribed resonance frequency, photoreceptor element 7 which generates light receiving signals upon receiving the light from the discriminator 6, mixer 9 which demodulates the light receiving signals, and servo circuit 13 which controls the feedback of the oscillation frequency of the light source 1 based on the demodulated signals.  The oscillation frequency of the light source 1 which oscillates in multiple longitudinal modes is stabilized by locking at least one spectrum of the multiple longitudinal modes of the laser light to the resonance frequency of the discriminator 6 by means of the mixer 9 and circuit 13.
Patent JP-H07239689-A (JP)
Title: Noise controller
Inventor: TAMURA TADASHI
IPC: G10K11/178
Filed: 1994-02-28
Abstract: PURPOSE:To provide a noise controller with a large muffler effect and with large versatility and with a simple constitution. CONSTITUTION:This device is provided with a frame 14 attached to a sound- proofing cover 3, a control speaker 8 arranged on the frame 14, a noise detection means 5 detecting noise and an error detection means 7 detecting error between a sound wave radiated from the control speaker 8 and the noise from the noise detection means 5. Then, the control speaker 8 and the error detection means 7 are fixed to the frame 14, and further, a monitoring window 10 provided for monitoring a noise source 1 is interposed between the noise detection means 5 and the error detection means 7. Thus, the device is hardly affected by the sound field of a scene, and adjustment in the scene is eliminated, and the versatility is enlarged. Further, howling is dissolved.
Patent JP-S63200851-A (JP)
Title: Method and plant for crushing mineral material
Inventor: MOORISU PARIAARU
IPC: B02C23/12
Filed: 1988-02-10
Abstract: This arrangement comprises a milling means enabling a plurality of cycles to be carried out in which the material is crushed slowly either by means of at least two communicating slow-compression crushers or by means of a slow-compression crusher (6) equipped with a system (9) for recycling the material from the outlet to the inlet of this crusher, whilst the pre-milled material is sent into a crusher containing balls (11), resulting in the final desired product which can subsequently be treated in a separator (13). The method and the arrangement of this invention permit, in particular, the milling of cement clinker. <IMAGE>
Patent JP-S57146466-A (JP)
Title: Casting method for titanium casting consisting of pure titanium or alloy consisting essentially of titanium
Inventor: KIDOWAKI YOSHIO
IPC: B22D21/00
Filed: 1981-03-02
Abstract: PURPOSE: To prevent oxidation of casting due to the deprival of the oxygen in a mold by titanium and (oxidation) and to improve the quality of a titanium casting by casting a titanium casting material to the magnesia mold in an oxygen- free atmosphere, maintaining the material at the prescribed temp. or below and cooling the same quickly.  
     CONSTITUTION: Pure titanium or an alloy consisting essentially of the titanium is used as a titanium casting material 3, and pure magnesia or a material consisting essentially of magnesia is used as a mold 13. The inside of a melting chamber 1 and a casting chamber 8 are put in a gaseous atmosphere of inert gas and the material 3 is melted in a crucible 5 of large wall thickness and mass by the arc discharge of an electrode bar 2. Before the temp. rises to the melting temp. of the crucible 5, the molten metal is charged into the mold 13. At this time, the material 3 is held at the temp. at which the oxide forming energy of the said material 3 assumes the value larger than the oxide forming energy of the magnesium when magnesia is formed from the beginning or it is cooled quickly, whereby the bonding reaction with the oxygen in the magnesia mold 13 is obviated virtually or completely. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S60197200-A (JP)
Inventor: DOWAI II BUUSU
IPC: F16D27/12
Filed: 1985-02-18
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-H08199160-A (JP)
Title: Excavation additive
Inventor: TAMURA AKIRA
IPC: C09K8/02
Filed: 1995-01-27
Abstract: PURPOSE: To produce an excavation additive for mud-pressure shield-tunneling method, composed of a viscous slurry composition obtained by adding a specific polymer to a clay suspension, capable of easily producing a liquid having high concentration, specific gravity and viscosity, converting excavated sand and earth to a plastic fluid and enabling the excavation of even a ground having high gravel content without causing the problems of blocking, powder generation, etc. CONSTITUTION: This excavation additive is composed of a viscous slurry composition produced by adding (A) 0.05-1.0wt.% of a water-soluble polymer partly insoluble in water [e.g. a reverse-phase W/O-type emulsion produced by copolymerizing water-soluble vinyl monomers such as a mixture of 20-40mol% of a (meth)acrylic acid salt and acrylamide and 1-100ppm (especially 5-30ppm) (based on the total amount of the water-soluble vinyl monomers) of a crosslinkable monomer by a radical generation agent, ultraviolet rays, radiations, etc.] to (B) a suspension of clay (e.g. mountain clay having a methylene blue adsorption of <=50meq/100g).
Patent JP-S57144114-A (JP)
Title: Vehicle height adjuster
Inventor: KUWANA KAZUTAKA
IPC: B60G17/00
Filed: 1981-03-03
Abstract: PURPOSE:To prevent the fall in the speed of the increase in the height of a vehicle, by providing a solenoid valve and a control circuit to disconnect a pressure accumulator from the air chamber of a suspension unit and the discharge port of an air  compressor when the pressure of the accumulator is lower than a prescribed level at the time of energizing for increasing the vehicle height. CONSTITUTION:When a compressor 203 is driven, a solenoid valve 310 is opened to  store pressure in an accumulator 330. When a solenoid valve 330 is opened, a suspension  unit 400 is operated to increase the height of a vehicle. The pressure in the accumulator 330 is found out by a pressure detection switch 340. When the pressure is higher than a prescribed level, the switch 340 is off. When the pressure is not higher than the  level, the switch is on. When the pressure is higher than the prescribed level, a timing  unit 140 has a high output level. When the pressure is not higher than the prescribed level, the timing unit 140 has a low output level. when the pressure switch 340 is on  and the timing circuit 140 has the low output level at the time of the opening of the  solenoid valve 310 by a vehicle height increasing signal generated by a counter CO2, the  output level (i) of a gate AN1 becomes low to close the solenoid valve 310 to supply  compressed air 203 only to the suspension unit 400. For that reason, the speed of the increase in the height of the vehicle is prevented from falling.
Patent JP-H09221864-A (JP)
Title: Floor structure
Inventor: ISHIDA NOBUO
IPC: E04B5/43
Filed: 1996-02-19
Abstract: PROBLEM TO BE SOLVED: To simplify execution by connecting steel sheet panels via their side walls, arranging foam bodies in the panels, arranging upper end bars on the side walls, and placing concrete to the height that the foam bodies and the upper end bars are buried. SOLUTION: A steel sheet panel 11 erected with the right and left side walls 10 is formed. The side walls 10 of the adjacent steel sheet panels 11 are overlapped, and portions of the side walls 10 are fastened by bolts 12 to connect multiple steel sheet panels 11. Trapezoidal synthetic resin foam bodies 13 are arranged in the steel sheet panels 11. Upper end bars 14 constituted of a reinforced mesh are mounted at the upper end of the side walls 10 of the steel sheet panels 11. Concrete 15 is placed to the height that the synthetic resin foam bodies 13 and the upper end bars 14 are buried. Compression can be maintained by the portion of the upper concrete, tension can be maintained by the portions of the steel sheets constituting the lower panels, and lower end bars can be omitted.
Patent JP-2000225519-A (JP)
Title: Work table in cutter
Inventor: AOYANAGI MINORU
IPC: B23Q1/25
Filed: 1999-02-08
Abstract: PROBLEM TO BE SOLVED: To provide a work table structure having high rigidity and accuracy even if it is lightweight. SOLUTION: In case of cutting a workpiece W, a work table 23 loading the workpiece is moved to reciprocate in right/left directions relating to a saw blade on a base stand 3 provided with the saw blade. When the workpiece loaded on the work table 23 is within a rated load, even when an urethane rubber 53 constituting a rated load running part 41 of structure with no large rigidity required is compressed and the work table 23 is sunk downward, since a clearance C between a slide member 67 and a guide rail 33 is held, the work table 23 runs on the guide rail 33 through a wheel 45.  When the workpiece exceeding the rated load is loaded on the work table 23, the slide member 67 constituting an overload running part 43 abuts to the guide rail 33, and the work table 23 runs on the guide rail 33 through the slide member 67 provided in a region of high rigidity capable of resisting against an overload.
Patent JP-H03234027-A (JP)
Title: Semiconductor device
Inventor: UENO KOJI
IPC: H01L21/331
Filed: 1990-02-09
Abstract: PURPOSE:To increase the internal resistance of a diffused base region by forming a structure, in which a constricted part is located between a diffused emitter region and a base contact region in the diffused base region and is narrower than those regions on both sides. CONSTITUTION:A diffused base region 36 includes a diffused emitter region 34 and a base contact region 44, between which is provided a constricted part 56 that is narrower than the regions 34 and 44. This part serves to reduce the internal resistance Ri of the base region 36. Suppose a transistor is composed of transistor elements 58-1, 58-i, and 58-n. The base resistance of the individual transistor 58-1 and 58-n is the sum of the internal resistance Ri of the diffused base region and the internal resistance RB; that is, the base resistance is the sum of internal resistances Ri and RB. Therefore, it is possible to increase the base resistance of a transistor for a discharge circuit.
Patent JP-H02209062-A (JP)
Title: Multi-medium communication system
Inventor: KINO TOORU
IPC: H04M3/493
Filed: 1989-02-09
Abstract: PURPOSE:To avoid the silence state by sending voice information read from a storage means able to be read at a high speed in parallel with the discrimination of communication kinds by a communication destination discrimination means to a line after the line connection. CONSTITUTION:An automatic/manual detection section 241 is started at the line connection to detect a FAX procedure start signal CNG from a communication opposite party thereby discriminating a medium of the communication opposite party. Moreover, a service start guidance is sent in parallel with the discrimination. A voice data stored in a RAM 221 in advance is read and sent via a voice coding/decoding section 261. Thus, when the communication opposite party is a telephone set 531, the operator of the telephone set 531 listens to a service start guidance immediately after the line connection.
Patent JP-S52113901-A (JP)
Title: Hydrogenation treatment of hydrocarbons
Inventor: IOKA MASATADA
IPC: C07C11/02
Filed: 1976-03-19
Abstract: PURPOSE: Impurities in hydrocarbons are removed by the hydrogenation treatment in the presence of a catalyst which keeps its high activity for a long time composed of a metal on porous magnesia cilicate. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H08220316-A (JP)
Title: Formation of diffraction grating and diffraction grating forming device
Inventor: ITO MASUMI
IPC: G02B5/18
Filed: 1995-02-20
Abstract: PURPOSE: To provide a diffraction grating forming method capable of controlling the period of the diffraction gratings to be formed with high accuracy. CONSTITUTION: The first and second light beams formed by bisecting the light emitted from a variable wavelength light source 30 with a beam splitter 41 are reflected and interfered by mirrors 42 and 43 to generate interference fringes of prescribed periods. Light induced changes in refractive index are generated and periodic refractive index fluctuations are induced in a core 12 when an optical fiber 10 is irradiated with such interference fringes. As a result, the diffraction gratings 20 of the prescribed periods are formed. The periods of the diffraction gratings 20 to be formed are controllable with high accuracy by adjusting the wavelengths of the first and second light beams.
Patent JP-S62189897-A (JP)
Title: Time-division channel system
Inventor: TAKAHASHI TATSURO
IPC: H04Q11/04
Filed: 1986-02-17
Abstract: PURPOSE:To reduce the number of pieces of pin of an LSI constituting switches by constituting the switches as parallel switches which receive respective bits belonging to different time slots from a format converting circuit through respective time slots, and converts the bits and outputs them to an inverse conversion circuit. CONSTITUTION:The format conversion circuits 4a-4n convert an information transmission format from the first transmission format with which plural bits belonging to the same time slot are transmitted in parallel to the second format with which the respective bits of the digits corresponding to different plural time slots are transmitted in parallel. A signal line constituting an in-station highway 31a transmits in parallel the latter bits. The spatial switch 5 (5a-5n) to which the information bits are inputted in the unit at every time slot is constituted as a part of the LSI.
Patent JP-S57145006-A (JP)
Title: Preparation of modified inorganic powder
Inventor: SAITOU TSUTOMU
IPC: C01G49/02
Filed: 1981-03-04
Abstract: PURPOSE: To obtain a sufficient modifying effect without using an unfavorable organic solvent, by using a salt of a polyamino acid in the treatment for controlling surface activity of inorganic powder.  
     CONSTITUTION: When a perfume or drug coexists with inorganic powder such as kaolin, talc, etc., an acidic or basic the powder exhibit acidity or basicity, to  produce an offensive odor and decomposition. To prevent this, the powder is  dispersed into an aqueous solution of a salt of a polyamino acid, and, if necessary, heated, so that the powder is sufficiently absorbed on the salt of a polyamino acid and dried. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H09222700-A (JP)
Title: Light shielding structure for film unit with lens
Inventor: MORIYA MITSUHIRO
IPC: G03C3/00
Filed: 1996-02-19
Abstract: PROBLEM TO BE SOLVED: To surely shield a film roll chamber from light even in a state where a gap by pawl-engagement is exposed to external light in spite of simple structure. SOLUTION: Plural ribs 50 having a slope 50a are formed along a groove 47 on the outer part of the inner wall 47a of the groove 47 of a back cover 23. A projected line part 48 is integrally formed on the inner wall 47b on the film roll chamber 32 side on the deepest part of the groove 47. By covering a main body base part 21 with the back cover 23 and pressing it, the edge part 46 of the base part 21 gets in the groove 47 and comes close to the chamber 32 side along the slope 50a of the rib 50 and is brought into contact with the inner wall 47b of the wall 47 as soon as an engaging pawl 45 is engaged with an engaging hole 44, then the top of the edge part 46 abuts on the projected line part 48. External light made incident from the gap by pawl-engagement is damped by space formed between the edge part 46 and the inner wall 47a.  Recessed parts are formed in the upper and the lower corners of the roll chamber 32 and the upper and the lower ends of the rib 53 forming the groove 47 with an outer wall 23a in between are fit in the recessed parts, so that the external light is prevented from entering from the upper and the lower corners of the chamber 32.
Patent JP-S58148319-A (JP)
Title: Infrared ray radiating complex body
Inventor: WATANABE YOSHIHIRO
IPC: C03C3/091
Filed: 1982-02-26
Abstract: PURPOSE:To provide a high performance infrared ray radiating complex body having excellent heat resistance, corrosion resistance and long life by a method wherein mixed oxide and compound oxide containing SiO2 are fusion welded and coated on a vitreous base material by a plasma flame spray coating. CONSTITUTION:A material composed of mixed oxide or compound oxide containing at least over 20wt% of SiO2 is fusion welded and coated on a vitreous base material by a plasma flame spray coating. Because of a infrared ray radiating compound which is composed of SiO2 as the essential ingredient is made fusion welded and coated on a vitreous base material by a plasma flame spray coating, the pre-treatment before welding is not required and the membrane thickness of a flame spraying layer is not required to be controlled as a thin layer. That is, the membrane thickness of a flame spraying layer is usually controlled within 5-50mum in thickness, the adhesion strength is not decreased even the membrane thickness is made at several hundreds mum, although, in case of the mixed oxide and compound oxide with less than 20wt% SiO2 being contained, the flame spraying layer is controlled by the property of the material other than SiO2, and the effectiveness of said flame spraying layer is resulted in the equal merit with the conventional fusion welding and coating.
Patent JP-H09228052-A (JP)
Title: Evacuating device for vacuum film formation or etching equipment
Inventor: OHINATA TAKESHI
IPC: C23C16/455
Filed: 1996-02-19
Abstract: PROBLEM TO BE SOLVED: To provide the device the maintenance of which can easily be performed and by which the quality of a manufactured product with the equipment is prevented from being deteriorated. SOLUTION: In this equipment, a reactive gas(es) is supplied to a process chamber 11 maintained under vacuum to perform film formation on the substrate of a thin film transistor or etching of the formed film, etc. The process chamber 11 is normally evacuated by using a vacuum pump 12 of this evacuating device. At this time, the temp. of a casing of the vacuum pump 12 is measured by a temp. measurement means 13, and also, the current value of a motor of the vacuum pump 12 is detected, and further, any abnormal vibration or any abnormal sound due to the abnormal vibration is detected by an accelerometer, to confirm the increase in degree of gas compression due to gas flow passage blocking, etc., and also, to detect any bitten foreign matter or any galling due to foreign matter.  An evacuated gas is heated by a ribbon heater of a heating and heat insulation means 14 to prevent byproducts from further being formed in the evacuated gas, and then, cooled by an evacuated gas cooling means 15 to solidify the byproducts and to trap a highly viscous solidified material. Also, other solidified materials such as a low viscous powder are trapped by a filter of a powder trap 16.
Patent JP-S58156365-A (JP)
Inventor: FISCHER RUDOLF
IPC: B05C1/10
Filed: 1983-02-28
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-H032915-A (JP)
Title: Input device
Inventor: SHIYAI RAI RON
IPC: G06F3/033
Filed: 1990-02-09
Abstract: PURPOSE: To realize a cursor control mechanism which is inexpensive and whose maintenance is easy by bridging a commutator/strip means and a conductive means and moving them along an extendable axis together with a cylinder member and generating a signal for performing a cursor movement from the movements of contaction means. CONSTITUTION: A cylinder shaped member 10 and a shaft 12 are made to be rotatable together and moreover the cylinder shaped member 10 is made slidable along the extendable axis of the shaft 12. The conduction means and the commutator/strip means are provided parallel to the extendable axis of the shaft 12. When the cylinder shaped member 12 is moved along the shaft 12, contaction means 30, 45 are moved along the conductive means/the commutator.strip means and a decoder means 80 detects the signal expressing the movements of the contaction means 30, 32 and the signal moves the position of a display 90. Consequently, the cursor control device, which is of inexpensive and whose maintenance is easy, can be realized.
Patent JP-H10214066-A (JP)
Title: Liquid crystal image display device
Inventor: ASAKURA TSUTAE
IPC: G09G3/36
Filed: 1997-01-30
Abstract: PROBLEM TO BE SOLVED: To reduce the circuit scale of an analog system of the liquid crystal display device and to perform offset addition for AC driving of liquid crystal uniformly with high precision. SOLUTION: Uninverted and inverted field image signals are obtained alternately by a data inverting circuit 4' and a switch circuit 5 to remove a DC component by a coupling capacitor, and a bias voltage is supplied and inputted to an H driver 11 of a liquid crystal display panel 8'. A signal holding capacitor 56 and a common electrode 73 of the liquid crystal display panel 8' are supplied with a pulse voltage which is inverted in field cycles from synchronous voltage supply circuits 25 and 26 to add an offset voltage to an image signal between fields. The image signal between the fields has high correlativity, so the mean level after DC component removal becomes always constant and the offset is added on the side of the liquid crystal display panel 8'.  Consequently, a signal input system can be simplified and the offset which is uniform and high in precision can be set for all the pixels.
Patent JP-H01163155-A (JP)
Title: Optically active 1-biphenylethanol derivative and production thereof
Inventor: AZUMAI TAKAYUKI
IPC: C12P7/62
Filed: 1988-02-12
Abstract: NEW MATERIAL:An optically active 1-biphenylylethanol derivative expressed by formula I (R is H or acetyl; R' is 1-15C alkyl or formula II; A is H, halogen, lower alkyl or lower alkoxyl; x indicates asymmetric carbon atom). EXAMPLE:Ethyl (+)-4'-(1-hydroxyethyl)-4-biphenylcarboxylate. USE:Useful as an intermediate for medicines, agricultural chemicals, etc., particularly as an organic electronic material, especially an intermediate for liquid crystal compounds. For example, a novel compound can be converted into a liquid crystal compound which is excellent as a ferroelectric liquid crystal as shown in the reaction formula IV. PREPARATION:dl-Esters expressed by formula III are asymmetrically hydrolyzed with an esterase having the ability to hydrolyze either of enantiomers thereof to afford the aimed compound expressed by formula I.
Patent JP-H04246581-A (JP)
Title: Thermal transfer recorder
Inventor: YAGI TOMOHITO
IPC: B41J31/14
Filed: 1991-02-01
Abstract: PURPOSE:To provide a thermal transfer recorder which can prevent both deterioration of printing quality and scumming on recording paper. CONSTITUTION:Distances between an ink supplymenting component 19 or an ink smoothing component 27 and a heating element part 3-a of a thermal head 3 are made to be not less than a length of a required printing range. An endless film is formed by joining both ends of a strip heat resistant film 1. A part where the joint part of the heat resistant film stops concurrently with end of printing is positioned at a contact position with the ink supplement component 19 or the ink smoothing component 27 or between them.