baber/WOPTO huggingface dataset:
Patent JP-2000152609-A (JP)
Title: Resonance type step-down switching power supply
Inventor: CHIBA SHUNICHI
IPC: G05F1/10
Filed: 1998-11-11
Abstract: PROBLEM TO BE SOLVED: To improve the voltage conversion efficiency of a step-down type stabilizing power supply, thus reducing switching noise. SOLUTION: The constant frequency charging/discharging cycle of a series resonance circuit 2 is utilized. A control circuit 6 controls 1st and 2nd switching devices S1 and S2 to charge the resonance circuit 2 from an input power supply 1 and also apply the same resonance current to an output connected in series in the charging cycle and to apply the resonance current to the output side only in the discharging cycle. By controlling the switching devices S1 and S2 immediately after a zero-cross point by the resonance current direction detection of a current direction detection circuit 3, a switching power supply with very little switching noise can be realized.  Furthermore, a comparison circuit 4 controls so as to stop the changeover of the switching devices S1 and S2 in a period, while an output voltage higher than a reference voltage 5 obtains an output voltage approximately equal to the reference voltage so as to stabilize the output voltage.
Patent JP-H01161937-A (JP)
Title: Digital signature system
Inventor: HIRATA KOZO
IPC: H04L9/32
Filed: 1987-12-17
Abstract: PURPOSE:To allow a host to verify the presence of forging of a received text through the use of a host key by identifying the text by a user key and further identifying the entire text with the user key added thereto by a terminal key. CONSTITUTION:A text [HIRATA] is subjected to an identification processing by user key (UK) to obtain a user identifier [u], a text with user signature [HIRATA+u] is subjected to the identification processing by a terminal key (TK) to obtain a terminal identifier [ho]. Then the text with user/terminal signature [HIRATA+u+ho] is sent to the host side via a public communication line, the text with user signature [HIRATA+u] is subjected to the identification processing by a host key (HK) to obtain a host identifier [ho]. Then the host identifier [ho] and the terminal identifier [ho] are compared to confirm that there is no intervention in the text [HIRATA]. That is, since the text (M) is added with the user identifier (UAC) being the signature of the user and the terminal identifier (TAC) being the terminal signature without fail, the correctness of the text (M) is guaranteed.
Patent JP-H05147006-A (JP)
Title: Manufacture of decorative sheet
Inventor: TSUBOUCHI KATSUMI
IPC: B27D5/00
Filed: 1991-11-09
Abstract: PURPOSE:To manufacture efficiently a decorative sheet to which a veneer impregnated effectively with synthetic resin is stuck. CONSTITUTION:After an adhesive agent film making layer 2 preventing infiltration of a synthetic resin solution is formed on a ligneous base 1, a lumber veneer 4 is put on the adhesive agent film making layer 1 through the synthetic resin solution 3. Under this condition, hot press treatment is performed by a hot press, the inside of the lumber veneer 4 is impregnated with the synthetic resin solution 3 through its bottom side, the synthetic resin solution 3 is cured and at the same time the lumber veneer 4 is stuck integrally to the ligneous base 1.
Patent JP-H05132290-A (JP)
Title: Load conveying method
Inventor: KAKO TETSUHIKO
IPC: E04G21/14
Filed: 1991-11-07
Abstract: PURPOSE:To enable conveyance of construction materials to a predetermined story in a simple manner and within a small space at a building site. CONSTITUTION:After a post 5 is erected upward along a building, a boom 9 is movably arranged up and down and positioned at a lower part of the post 5, and is extended to make the tip of the boom 9 lift a load. The boom 9 is then contracted after lifting the load and moved upward along the post 5, and after moving it up to an optional height the load is lifted down to a predetermined spot from the tip of the boom 9 by extending the boom 9.
Patent JP-H11162042-A (JP)
Title: Recorder and recording method
Inventor: KATO FUMIHIKO
IPC: G11B27/28
Filed: 1997-11-21
Abstract: PROBLEM TO BE SOLVED: To prevent useless topmusic information from being recorded in a pause, etc., of performance and to record the topmusic information on an optimum position with simple operation. SOLUTION: A trigger generation circuit 23 generates a trigger signal when a level discrimination circuit 21 discriminates that a signal level of an audio signal exceeds a threshold level. A digital signal processing circuit 13 adds a start ID to the audio signal when the trigger signal is generated to perform the processing converting it to a prescribed format. Then, a rotary head 15 records the audio signal on a magnetic tape 20. Then, the level discrimination circuit 21 stops the comparative discrimination between the signal level and the threshold level of the audio signal.
Patent JP-H07177751-A (JP)
Title: Power supply unit for motor
Inventor: NAKAMURA YOSHINOBU
IPC: B60L9/18
Filed: 1993-12-21
Abstract: PURPOSE:To efficiently use a battery by preventing excessive quickening of time required until its output reaches the end voltage during discharge of the battery. CONSTITUTION:An inverter unit 4 controlled by a control circuit 8 drives an AC motor 5 by the output of a battery 1. An arithmetic circuit 10 estimates the residual capacity of the battery 1 based on a detecting signal Ic indicating a discharge current detected by a current sensor 9 and an output voltage Vc of the battery 1. A signal generating circuit 11 sets an allowable upper limit value Imax of the output current of the inverter unit 4 in such a manner that the Imax decreases at a predetermined rate as the level of signal Rc indicating a residual capacity calculated by the arithmetic circuit 10 becomes lower and said circuit 11 also gives an upper limit value command signal SImax indicating the allowable upper limit value Imax to the control circuit 8. The control circuit 8 controls in such a manner that the output current of the inverter unit 4 does not exceed said allowable limit value Imax of the inverter unit 4.
Patent JP-H09161043-A (JP)
Title: Document picture input device
Inventor: TAKAHASHI KATSUHIKO
IPC: G06T1/00
Filed: 1995-12-11
Abstract: PROBLEM TO BE SOLVED: To efficiently acquire a document picture of an area larger than an image-pickup range by adding a control part to an image pickup device. SOLUTION: A layout analyzing means 13 extracts the areas of a character, a chart and a photograph from a low resolution picture obtained by image- picking up the whole document, a reading area planning means 14 divides each area into ordered small areas and a picture reconstitution means 16 generates the picture of the whole document by sticking the pictures obtained by photographing each small area. As the picture reconstitution means 16 determines the position of a line within a character area from the result of layout analysis, correlative arithmetic for aligning is not necessitated concerning a direction orthogonal to a line direction which does not require the precision of aligning.
Patent JP-H04193837-A (JP)
Title: Production of diphenylbutane
Inventor: MATANO KOUICHI
IPC: C07C2/70
Filed: 1990-11-26
Abstract: PURPOSE:To produce diphenylbutane with single-stage reaction in high yield by reacting benzene with 1,3-butadiene in the presence of Y-type zeolite as a catalyst. CONSTITUTION:Diphenylbutane is produced by reacting benzene with 1,3-butadiene in the presence of Y-type zeolite (Y-type zeolite may be used as it is or after various treatments). The amount of the Y-type zeolite is preferably 0.01-50wt.% based on the benzene/1,3-butadiene mixture raw material. Since the catalyst can easily be separated from the reaction system after the reaction, the process can remarkably be simplified and the separated catalyst can be reused in the reaction at need.
Patent JP-H11142833-A (JP)
Title: Reflection type liquid crystal display device
Inventor: HARA KAZUTAKA
IPC: G02F1/1335
Filed: 1997-11-06
Abstract: PROBLEM TO BE SOLVED: To obtain a reflection type liquid crystal display device which is small in brightness and darkness difference by a visual angle change, is large in a reflected light quantity, is excellent in utilization efficiency of light, is substantially free of hindrance of visibility by ghost images and is excellent in visibility, such as visual field angle and brightness. SOLUTION: This reflection type liquid crystal display device is constituted by arranging a reflection plate 1 installed with a reflection layer 12 consisting of a vapor deposited metal layer on the prism-like rugged surface of a supporting base material 11 having a repetitive structure of prism-like ruggedness on the visible rear surface side of a liquid crystal cell 4 via an air layer 2 and arranging an anti-glare layer 3 between the air layer 2 and the liquid crystal cell 4. The reflection plate which is capable of controlling the exit direction of the reflected light and exhibits the peak of the reflected light at plural exit angles is formable as well by adjusting the angle of inclination of the prism-like ruggedness of the supporting base material.  The formation of a reflection characteristic exhibiting a light quantity distribution of a trapezoidal shape is made possible by forming this plate via the anti-glare layer.
Patent JP-H01162407-A (JP)
Title: Voltage/current converting circuit
Inventor: NAKANO KOICHI
IPC: H03F3/34
Filed: 1987-12-18
Abstract: PURPOSE:To attain the conversion of a voltage amplitude/current signal without causing distortion to get worse by fixing the base of a transistor to a constant potential and connecting a current source and a resistance to an emitter. CONSTITUTION:A base 22 of a transistor TR23 is fixed to the constant potential and a current source 35 and a resistance 21 are connected to the emitter. Then, a signal is inputted and one electric path of a current mirror circuit, which is composed of a current source 36 and TRs 25 and 28, is coupled to a collector. Thus, by flowing a constant current to the emitter of the TR23, to which the signal is inputted, the fluctuation of a voltage VBE between base and emitter due to the fluctuation of a signal current can be made small. Accordingly, the signal current of no distortion, which is originally impressed, can be impressed and the voltage amplitude can be converted to the current signal without causing the distortion to get worse.
Patent JP-H09144324-A (JP)
Title: Sheet opening and closing mechanism in temporary tent
Inventor: SHIMADA KAZUFUMI
IPC: E04H15/54
Filed: 1995-11-17
Abstract: PROBLEM TO BE SOLVED: To carry in heavy goods from the roof, by arranging a plurality of roof materials which have guide grooves at the flanks, in the longitudinal direction, and also, stretching roof sheets shiftably between the roof materials, and enabling them to be opened partially. SOLUTION: A guide groove is provided at the flank of the roof material 12a consisting of hollow material square-shaped or circular in section, and a rope-shaped slip stop material provided at each lug part on both sides of the roof sheet is set in the groove, and a roof sheet 13 is stretched shiftably between the roof materials 12a. The shifting (opening and closing) of the roof sheet 13 is performed by coupling a wire rope 20 to one end and pulling it with a winch mechanism 19 driven by a motor 23 fitted with a clutch, and also, attaching a counter weight device 30 to the other side, and giving tension to the roof sheet 13. In the case of carrying heavy goods into a tent by an outdoor crane, the roof sheet 13 is opened partially, and it can be carried in from that section. Hereby, the opening and closing mechanism of the roof sheet 13 can be simplified.
Patent JP-H10162047-A (JP)
Title: Circuit extraction device and method therefor, and simulation information generation system and method therefor
Inventor: YONEZAWA HIROKAZU
IPC: G06F17/50
Filed: 1996-12-03
Abstract: PROBLEM TO BE SOLVED: To extract a circuit information capable precisely reproducing the drain current and the gate capacity of actual device in a circuit simulation. SOLUTION: A transistor part shape-recognition means 1 recognizes the shape of a transistor part from a mask layout data 11 and generates transistor part shape data 12. A transistor size calculation means 2 obtains an equivalent transistor size, by which drain current matches with drain current in the real device and outputs it as transistor size data 14. A correction capacity generation means 3 obtains the difference of gate capacity between circuit simulation using the equivalent transistor size and the actual device, and virtually generates correction capacity having a capacity value equivalent to the obtained difference. An net list output means 4 reflects transistor size data 14 and correction capacity data 17 on a net list 18 as circuit information used for circuit simulation.
Patent JP-H11139165-A (JP)
Title: Window frame lower edge structure
Inventor: ASABA KAZUHIRO
IPC: B60J10/04
Filed: 1997-11-07
Abstract: PROBLEM TO BE SOLVED: To cope with both fixed window glass and elevating window glass with an inner panel and an outer panel of the same structure by laying an outer reinforcing plate between the inside of an upper edge part of an inner reinforcing plate of the inner panel and the inside of a flange of the outer panel to cope with the fixed window glass. SOLUTION: In window frame lower edge structure, an inner panel 1 and an outer panel 2 are formed into the same structure as structure corresponding to elevating window glass. In the case of fixed window glass, an inner reinforcing plate 6A is laid between the inside of an upper edge flange 3A of the inner panel 1 and the inside of the inner panel 1 below, and an outer reinforcing plate 7A is laid between the inside of a protruding part of the inner reinforcing plate 6A protruded from the upper edge of the inner panel 1, and an upper edge flange 3B of the outer panel 2 to cope with the fixed window glass. With this constitution, the structure corresponding to the elevating window glass can be applied without change, so that the inner panel 1 and outer panel 2 of the same structure can be applied to both the fixed window glass and elevating window glass.
Patent JP-H02167822-A (JP)
Title: Production of fibrous sodium titanate
Inventor: YASUKI MINORU
IPC: C01G23/00
Filed: 1988-12-20
Abstract: PURPOSE:To obtain a fibrous sodium titanate having high versatility with a simple and industrially advantageous process by heating and calcining a mixture of a Ti compound giving TiO2 with heat, an Na compound giving Na2O with heat and NaCl. CONSTITUTION:The objective fibrous sodium titanate expressed by formula Na2O.nTiO2 (n is 3 or 5) is produced by mixing (A) a Ti compound giving TiO2 with heat (e.g. high-purity titanium oxide preferably having an average particle diameter of 0.1-0.5mum) with (B) an Na compound giving Na2O with heat (e.g. Na2CO3) at a molar ratio (A/B) of 1.0-6.0, adding 10-200 pts. wt., preferably 30-100 pts.wt. of NaCl to 100 pts.wt. of the above mixture, reacting the components by heating at 800-1350 deg.C, slowly cooling the reaction product to room temperature and subjecting the product to washing with water, opening, drying and classification. The product usually has a fiber length of 10-50mum and fiber diameter of 0.2-1.0mum and is useful as a reinforcing filler for a heat- insulation material, a refractory material, plastics. cement, etc.
Patent JP-H11218644-A (JP)
Title: Optical fiber device and optical fiber subassembly
Inventor: EDWARDS BRYAN
IPC: G02B6/40
Filed: 1998-11-12
Abstract: PROBLEM TO BE SOLVED: To provide an optical fiber device and optical fiber subassembly which can splice optical fibers such as duplex type optical fibers easily and speedily with superior characteristics. SOLUTION: The optical fiber device has a housing 70, a splicer 1, and an optical fiber stub and ferrule 50. This splicer 1 includes an optical fiber reception element 3 and a hold element 21 which elastically holds optical fibers to be spliced. Hold elements 21 like this are provided on both the sides of the optical fiber reception element 3 and a bearing tool is inserted into the opening of the hold element 21 and rotated to make a separating force operate between the hold element 21 and optical fiber reception element 3, thereby enabling the optical fibers to be inserted and extracted.
Patent JP-H07177938-A (JP)
Title: Article platen
Inventor: MIYATANI SHIGERU
IPC: A47B43/00
Filed: 1993-12-21
Abstract: PURPOSE:To miniaturize a packed form with respect to the article platen such as a flower stand composed of a pair of right and left triangular leg bodies and plural shelf panels built over these leg bodies. CONSTITUTION:A leg body 2 is composed of a strut 5, shelf supporting frame 6 and coupling link 7, the strut 5 and the shelf supporting frame 6 are pivotally supported at the upper part each other, and the lower part of the shelf supporting frame 6 and the front part of the coupling link 7 are pivotally supported. Besides, the lower edge part of a brace 4 for connecting the backs of leg bodies 2 while crossing them each other is freely engaged and deengaged to the left and right struts 5. The coupling link 7 is folded into the shelf supporting frame 6, further, the leg body 2 is made into a bar by folding the strut 5 into the shelf supporting frame 6, and the leg bodies 2 are made close each other by mutually closing the braces 4.
Patent JP-H09180383-A (JP)
Title: Actuator driving device of hard disk device
Inventor: YASU EISHIYOU
IPC: G11B33/14
Filed: 1996-12-03
Abstract: PROBLEM TO BE SOLVED: To provide an actuator driving device capable of further making the device thinner and improving the driving performance. SOLUTION: A permanent magnet 2 forming a magnetic field for generating the driving force is mounted on an actuator 1, and this actuator 1 is turnably assembled to a pivot shaft 7 through a bearing 3. The pivot shaft 7 is erected on a printed circuit board 4, whereon a pattern coil 4a is formed by a printed pattern on the position confronted with the magnet 2 of the actuator 1 pivoted by the pivot shaft 7. This printed circuit board 4 is of a laminated system, and the number of effective windings of the pattern coil 4a is increased by the laminated printing.
Patent JP-S63239553-A (JP)
Inventor: TOMASU PATORITSUKU BITSUSHIYOP
IPC: G06F9/48
Filed: 1987-12-22
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-H09295369-A (JP)
Title: Composite film and manufacture thereof
Inventor: SUMIDA KATSUHIKO
IPC: B32B7/02
Filed: 1996-12-03
Abstract: PROBLEM TO BE SOLVED: To protect an electronic part by wrapping it with film having properties such as high gas barrier, transparency, visual recognizability and electroconductivity. SOLUTION: At least, one of the faces of a transparent base material film is covered with a coating layer of a resin with high gas barrier properties (copolymer of vinylidene chloride or copolymer of ethylenevinyl alcohol) through a transparent inorganic layer with high gas barrier properties (silicon oxide) to prepare film with high gas barrier properties. Further, the other face of the coating layer of the film or of the base material film is coated with a transparent electroconducting layer with a surface intrinsic resistance of 10<8> Ω/square or less to obtain a composite film. The film with high gas barrier properties has a moisture permeability of 1g/m<2> /day or less and an oxygen permeability of 1cc/m<2> /day or less.  The composite film complies with the regulations of ASTM-E-392-74 and shows the moisture permeability of 4g/m<2> /day or less, the oxygen permeability of 4cc/m<2> /day or less and the surface intrinsic resistance of 10<9> Ω/squarer less, when the Gelvo test is conducted 100 times.
Patent JP-H04196336-A (JP)
Title: Floating detector of flat plate type electronic part lead
Inventor: SHUDO HIROICHI
IPC: H01L21/66
Filed: 1990-11-28
Abstract: PURPOSE:To enable the floating of leads to be detected with high precision by a method wherein a laser displacement gauge is scanned oppositely to the multiple leads of a flat plate type electrode part. CONSTITUTION:A flat plate type electronic part 10 protruding multiple leads 11 is held by a suction nozzle 2 while a laser displacement gauge 12 is arranged free-oppositely to the multiple leads 11 so that the laser displacement gauge 12 may scan in the passing direction across the multiple leads 11 by the relative movements of the suction nozzle 2 and the laser displacement gauge 12. Through these procedures, the laser displacement gauge 12 can oppositely scan the multiple leads 11 of the flat plate type electronic part 10 so that the gaps between respective leads 11 and the laser displacement gauge 12 i.e., the floating of the leads 11 may be detected with high precision.
Patent JP-H09155204-A (JP)
Title: Metallic carrier having elasticity holding member on outer periphery of honeycomb body
Inventor: OTA HITOSHI
IPC: F01N3/28
Filed: 1995-12-12
Abstract: PROBLEM TO BE SOLVED: To provide a metallic carrier having an elasticity holding member on the outer periphery of a honeycomb body, which is increased in joining strength, by increasing the surface area of the honeycomb body or the holding member to enlarge the contact area between both. SOLUTION: The honeycomb body is formed by laminating and winding a flat plate 2a composed of a heat resistant metallic foil and a corrugated plate 2b formed by working the flat plate 2a into corrugated state so that the outermost periphery of the honeycomb body is constituted of the corrugated plate 2b and covering the outermost peripheral corrugated plate with the elasticity holding member 3 and the metallic carrier composed of the honeycomb body having the elasticity holding member 3 on the outer periphery is obtained by putting the honeycomb body in a casing. The outermost peripheral surface of the honeycomb body 2 is preferably enlarged by forming a roughened surface by a wash coat or the like.
Patent JP-H03182790-A (JP)
Title: Electrophotography device
Inventor: TORISAWA YOSHIHIRO
IPC: G03G21/00
Filed: 1989-12-13
Abstract: PURPOSE:To prevent the toner from being scattered by leaving a potential difference and to satisfactorily maintain the shape of a toner image by placing opposingly a destaticizer on the peripheral surface of a latent image holding body extending from a developing device to an image transfer belt, and providing a means for controlling an output of the destaticizer so that the potential difference is left in a developer non-adhering part and a developer adhering part. CONSTITUTION:A destaticizer 24 is placed opposingly on the peripheral surface of a latent image holding body 9 extending from a developing device 7 to an image transfer belt 2, and an output control means 26 for controlling a destaticizing output of the destaticizer 24 to a range in which a potential difference is left in a developer non-adhering part and a developer adhering part on the peripheral surface of the latent image holding body 9 is provided. Accordingly, the potential difference is left in the toner adhering part and the toner non-adhering part of destaticized latent image holding body 9. In such a way, no toner is scattered from a developed toner image, a shape of the toner image maintained satisfactorily, and also, it is prevented that the toner adheres to the toner non-adhering part.