baber/WOPTO huggingface dataset:
Patent JP-H04197096-A (JP)
Title: Controller for brushless motor
Inventor: SAKURAI OSAMU
IPC: H02P6/08
Filed: 1990-11-28
Abstract: PURPOSE:To protect a switching transistor against burning due to chopping operation of a constant current chopper circuit by lagging the rising of a chopper signal thereby ensuring a long OFF interval of the switching transistor after chopping operation. CONSTITUTION:After chopping operation, a comparator 11 outputs a voltage determined in accordance with the voltage division ratio of resistors 12, 13 and a high level chopper signal is fed through a time constant circuit to the plus input terminal of a comparator 16. At that time, time to be elapsed before the potential of the chopper signal reaches a reference voltage Vs is extended through charge storing function of the capacitor 15 in the time constant circuit. According to the constitution, current is blocked perfectly from flowing into driving coils 2a-2c after turn OFF of switching transistors 4a-4c.
Patent JP-H08180041-A (JP)
Title: Digital signal processor
Inventor: TAN YUU KUUN
IPC: G10L19/038
Filed: 1994-12-26
Abstract: PURPOSE: To provide a digital signal processor capable of accelerating a digital signal processing and reducing the programs of a processing method, mounting area and power consumption. CONSTITUTION: A data driving execution part 30 is constituted of a product sum/addition part 21 and a control part 22 and a data processing execution part 31 is constituted of the product sum/addition part 23, a burrel shifter logic part 24 and a register file 25. Corresponding to the program controlled by a program control part 26, a data driving operation is performed in the data driving execution part 30 and data-driven data are processed in the data processing execution part 31.
Patent JP-H02170100-A (JP)
Title: Mhd power generation system
Inventor: TERASAKA HARUO
IPC: G21D7/02
Filed: 1988-12-23
Abstract: PURPOSE:To increase the energy efficiency by arranging a preheater on the downstream side of a turbine power generation system and a heat exchanger on the upstream side of the mixer of a gas system, guiding high-temperature gas from a separator to the preheater and lowering the temperature, and then increasing the temperature of the gas which is pressurized by a pump by the heat exchanger. CONSTITUTION:Liquid metal from a power generator 2 is separated from gas by the separator 5. The gas preheats the operating liquid of the turbine power generation system by supplying its remaining heat energy. Then all the heat energy that the high-temperature gas has before entering a pump 8 is conducted to the operating liquid of the turbine power generation system through the preheater 14 and the heat energy of a nuclear reactor 1 is used effectively without being discharged to the outside from the system. Further, low- temperature gas which is pressurized by the pump 8 receives heat energy from the liquid metal through the heat exchanger 15, so is raised the temperature in the heat exchanger 15 to perform heat exchange between the liquid metal and gas, thereby improving the energy efficiency of the system.
Patent JP-H07149116-A (JP)
Title: Pneumatic tire for passenger car
Inventor: YAMAMOTO MASAHIKO
IPC: B60C15/04
Filed: 1993-11-30
Abstract: PURPOSE:To reduce the manufacturing cost of a pneumatic tire and to improve its productive efficiency by controlling the use of excessive pieces of wire without causing the lowering of the destructive pressure of the tire (the factor of safety of the tire) CONSTITUTION:In a passenger car pneumatic tire having a pair of bead parts severally formed on the peripheries of a pair of sidewall parts connected on both the sides of a tread part, the bead core of a bead part is composed of a monostrand formed by spirally turning circular-section wires coated with rubber and bulding them. The length L(mm) of an overlap between the winding start and end of the wire shall satisfy relation shown by the following expression, namely L>4.0X10XDELTAr<2>(f/A), here (r) is the radius of a wire section, (f) is the tensile strength(kgf/mm<2>) of the wire, and A is drawing out force(kgf) of the wire from the coated rubber.
Patent JP-H11158152-A (JP)
Title: Preparation of 1,3-dialkyl-2-imidazolidinones
Inventor: MATSUBA KATSUHIKO
IPC: C07D233/34
Filed: 1997-11-25
Abstract: PROBLEM TO BE SOLVED: To provide a method for preparing the subject compound useful as a solvent or the like for extraction with small amount of by-products in a high yield by a direct one-step process by reacting an alkylene carbonate with a monoalkylamine in the presence of a dialkyl urea. SOLUTION: An alkylene carbonate of formula I (R<1> is H or methyl) is heated with a monoalkylamine (preferably, monomethylamine) of formula II (R<2> is a 1-6C alkyl) in the presence of 1,3-dialkylurea (preferably 1,3- dimethylurea) of formula III (R<3> is a 1-6C alkyl) at >=50C (preferably 100-300 deg.C)to provide the objective 3-dialkyl-2-imidazolidinones of formula IV in the method for preparing the 3-dialkyl-2-imidazolidinones. The reaction is preferably performed in the presence of carbon dioxide. For example, 1,3-dimethyl-2- imidazolidinone is obtained by heating ethylene carbonate and the monomethylamine in the presence of 1,3-dimethylurea at 450 deg.C.
Patent JP-H0718357-A (JP)
Title: Combined functional material device
Inventor: FURUYA YASUBUMI
IPC: H05B6/10
Filed: 1991-10-02
Abstract: PURPOSE:To form a combined functional material device which is movable in response to an external applied electromagnetic field, self-generating heat by the effect of an electromagnetic-induced eddy current and enables the self- deformation of the shape memory element itself to the original memorized shape by a temp. change due to the heat by combining a simple shape memory material with a ferromagnetic substance. CONSTITUTION:A fine wire 1 of ferromagnetic ferrite is wound around the surface of a Ti-Ni shape memory alloy 2 and they are joined to obtain the objective combined functional material device capable of self-generating heat by the effect of an electromagnetic-induced eddy current generated in an external electromagnetic field and capable of self-deformation.
Patent JP-2001137666-A (JP)
Title: Purification device for exhaust gas of internal combustion engine, purification method and purification catalyst
Inventor: KANAE MASAHITO
IPC: B01D53/94
Filed: 1999-11-15
Abstract: PROBLEM TO BE SOLVED: To purify the exhaust gases of an internal combustion engine mounted with a lean burn engine to get rid of the NOx included therein with high efficiency. SOLUTION: In a method for purifying the exhaust combustion gases from the internal combustion engine to get rid of the NOx included therein by reducing gases, such as carbon monoxide and hydrocarbon included in the exhaust gases in the presence of a catalyst, the catalyst formed by depositing at least one kind selected from Rh, Pt and Pd, an alkaline metal and at least one kind selected from B or P on a porous carrier is used.
Patent JP-H06148152-A (JP)
Title: Ultrasonic image device
Inventor: HARA KAZUHIKO
IPC: G01N29/44
Filed: 1992-11-09
Abstract: PURPOSE:To eliminate the individual difference in output image by operators and allow even an operator having no special knowledge to perform measurement with optimum sensitivity within a short time. CONSTITUTION:In the water in a water tank 1, a subject S and a transducer 2 in the position opposite to the subject S are provided, and the output of the transducer 2 is connected to an ultrasonic transmitting and receiving part 3 provided on the outside of the water tank 1. The output of the ultrasonic transmitting and receiving part 3 is connected to a central control part 7 through an attenuator 4, an amplifying part 5, and an intensity detecting part 6, and the output of the central control part 7 is connected to the transducer 2, a display 9, a printer 10, an operation panel 11, and the attenuator 4 through a scanner 8. The reflection signal obtained by the transducer 2 is attenuated to a proper level by the attenuator 4, and the intensity is then detected by the intensity detecting part 6. The detected intensity is stored in the central control part 7, and also colored every intensity and displayed on a display 9.
Patent JP-2001145192-A (JP)
Title: Ultrasonic vibrator
Inventor: ITOTANI SATOSHI
IPC: H04R17/00
Filed: 1999-11-15
Abstract: PROBLEM TO BE SOLVED: To provide an ultrasonic vibrator provided with a sound matching layer having an optimized shape. SOLUTION: This ultrasonic vibrator is provided with a sound matching layer 2, which has such a shape that its cross-sectional area increases toward the forward direction and is fixed to the front end face of a main part 1 of the vibrator.
Patent JP-H05173108-A (JP)
Title: Dimming device of display panel
Inventor: WAKAMOTO RYOJI
IPC: G09F13/26
Filed: 1991-11-11
Abstract: PURPOSE:To expand the variation range of relative display brightness and to improve visibility in night and day by combining gradation characteristics which vary in light transmissivity as the liquid crystal applied voltage of active type liquid crystal is varied with dimming characteristics of a fluorescent lamp. CONSTITUTION:A liquid crystal driving device 2 applies the voltage to the active liquid crystal 4 corresponding to a proper brightness signal S generated by an external illuminance detection device 1. A fluorescent lamp driving device 3 varies the duty ratio of the extinction and illumination of the fluorescent lamp 5 corresponding to the signal S to dim the lamp 5 as a light source. Then variation in the light transmissivity ratio of the liquid crystal 4 based upon variation in the liquid crystal applied voltage V is combined with variation in relative lamp brightness with the duty ratio to increase the dimming range of the relative display brightness to external illuminance. Consequently, the relative display brightness matching the external illuminance (nonglaring display brightness) is obtained.
Patent JP-H03200926-A (JP)
Title: Liquid crystal constituting body
Inventor: NAKATANI KENJI
IPC: G02F1/1333
Filed: 1989-12-15
Abstract: PURPOSE:To obtain the liquid crystal constituting body which can be easily produced and has excellent durability by controlling the impression of the voltage to electrode layers, thereby controlling the orientation of the liquid crystal molecules in the liquid crystal droplight dispersed in a resin. CONSTITUTION:The transparent conductive electrode layers 20 are provided on transparent substrates 10 and after a liquid mixture composed of a polycarbonate urethane acrylate oligomer and a cyanobiphenyl system liquid crystal is applied at a uniform thickness on the transparent conductive electrode layers 20, the substrates are superposed on the liquid crystal layer 30 to form a laminate. This laminate is irradiated with UV rays to cure the polycarbonate urethane acrylate oligomer. While the liquid crystal film 30 cured by a method, such as irradiation with U rays has 2 to 30 mum thickness, the thickness is selected by taking the opacity of the liquid crystal film in the state of not impressing the voltage to the transparent conductive electrode layers 20 and the transparentcy at the time of impressing the voltage into consideration. The liquid crystal constituting body obtd. in such a manner has the excellent durability and can be easily produced.
Patent JP-H01166633-A (JP)
Title: Bit phase synchronizing circuit
Inventor: TORII YUTAKA
IPC: H04J3/06
Filed: 1987-12-23
Abstract: PURPOSE:To establish the synchronization even if any phase difference exists between an external clock and an internal clock by providing a FF set by an AND signal between a clock whose pulse width is twice that of the external clock and the internal clock. CONSTITUTION:The FF 25 is set/reset by an AND signal between clocks 31, 32 formed by the external clocks 31, 32 and the internal clock. In such a case, the trailing edge of an output signal 35 of the FF 25 is delayed a little from the leading edge of the internal clock due to a delay in the FF 25 or the like. Since the leading edge of the internal clock exists in the pulse width (T) time of the output signal 35 without fail, an output signal 36 of a FF 26 rises synchronously with the leading edge of the internal clock and the pulse width reaches T. The output 33 of the FF 21 is selected by the signal 36, the selected signal 37 is segmented by the trailing edge of the internal clock to obtain an output data.
Patent JP-H07183011-A (JP)
Title: Manufacture of square sealed battery
Inventor: SAKAMOTO HIKARI
IPC: H01M10/34
Filed: 1993-12-22
Abstract: PURPOSE:To prevent the deterioration of an insulating gasket of a square sealed battery caused when a sealing body is welded to prevent the leakage of an electrolyte. CONSTITUTION:A power generating element is accommodated into a square outer jacket can 1, and a sealing body 2 in which a cathode cap 5 incorporating a safety valve through an insulating gasket 4 in a cover plate 3 is fit to the outer jacket can 1, and the fit part of an opening end 1c with the cover plate 3 is sealed by laser welding. The welding position of the opening end 1c and the cover plate 3 is slid 0.05-0.07mm outside from the fit part in the vicinity of the insulating gasket 4.
Patent JP-H08223055-A (JP)
Title: Variable-length cord decoder
Inventor: KIN KEISOKU
IPC: H03M7/42
Filed: 1995-11-17
Abstract: PROBLEM TO BE SOLVED: To execute a high speed decoding by reducing an idle time in decoding of each code word. SOLUTION: This device is provided with an interface circuit 200 which stores a serially inputted 2<n> bit variable length code bit stream, and outputs an object bit stream with predetermined number of bits in parallel according to a control signal, and a lookup chart memory 220 which decodes the object bit stream, and outputs a decoded symbol and the length data of a corresponding code word. Also, this device includes a control circuit 240 which receives the object bit stream from the interface circuit 200 and the decoded symbol from the lookup chart memory 220, and outputs the control signal.
Patent JP-H05156838-A (JP)
Title: Parking device
Inventor: NAKAJIMA MASAKAZU
IPC: E04H6/20
Filed: 1991-12-09
Abstract: PURPOSE:To make a multi-story parking device efficient by transferring and mounting by means of a sideway reciprocating movement truck an automobile on an ascent/descent stand to racklike automobile fixation support stands at plural steps, moving the movement truck to the original ascent/descent support stand. CONSTITUTION:An automobile ascent/descent stand 2 on which an automobile 10 is mounted, is ascended and stopped at the same level with a racklike automobile fixation support stand 4 located in the right and left direction of an ascent/ descent passage 3, and ascended to a higher position than that of the level of a timer mounting stand 8 on the fixation support stand 4. A sideway reciprocating movement truck 5 is moved along travel guiding guides 6, 6 under this condition, and transferred to the fixation support stand 4. Next, the automobile 10 is supported on the fixation support stand 4 by descending timer ascent/ descent stands 7, 7, and then, the truck 5 is moved onto the original ascent/ descent stand 2, and then, similar operations are repeated to other empty fixation support stands 4.
Patent JP-H07132632-A (JP)
Title: Thermal recording apparatus and head
Inventor: INOUE NOBUHIRO
IPC: B41J2/36
Filed: 1993-12-22
Abstract: PURPOSE:To conserve recording paper by enabling the contraction recording of an image without deteriorating image quality to a large extent. CONSTITUTION:The pixel data among image data wherein corresponding pixel density is same to the arranging density of heating resistors are successively extracted as a pair of pixels by two from the head of the image data by a serial/parallel converter 91. These two pixels forming a pair are converted to one recording pixel (in the case of the presence of picture dots, either one of the picture dots having two large and small sizes is selected corresponding to the state of two pixels) by an AND gate 93, an OR gate 94 and a selector 95 to convert image data to recording data wherein the number pixels is 1/2. The recording pixel rows corresponding to the recording data thus formed are formed using the predetermined half number of heating resistors among a large number of heating resistors to drive a thermal printing head on the basis of the recording data and various signals generated in a control signal generating part 96.
Patent JP-H08177061-A (JP)
Title: Semisubterranean floating structure, and building consisting its support
Inventor: HAYASHI MASAO
IPC: E02D27/34
Filed: 1994-12-27
Abstract: PURPOSE: To obviate the ground improvement by a method wherein heavy liquid mud in specific gravity at specified value is placed around a structure while underground walls reaching the foundation ground and facing the side walls of the structure and a pool bottom wall facing the floor slab of the structure are provided. CONSTITUTION: Submerged excavation is made inside a rectangular continuous underground wall 1 reaching the foundation ground, and foundation concrete 2 is cast to the excavated surface. A floating structure constructed of a floor slab 3 and side walls 4 is set afloat inside the excavated place, and walls and columns 6 for the undermost subterranean story of a building is constructed inside the floating structure. Then, the floating structure is sunk, with water poured therein, to a position near the ground surface 8, and after side walls 5 and partition walls and columns 7 for the next story are constructed, the floating structure is sunk, with water poured therein, up to a position near the ground surface. By repeating such processes, the floating structure and the subterranean part of the building are completed.  While the aboveground stories are constructed, water is discharged and the level of the structure is restored to its original position. Moreover, water inside the underground wall 1 is replaced with heavy sludge in specific gravity of 10±20% of the ground, and the upper stories are constructed while the weight of the building is supported therewith. Thereby, construction can be proceeded without regard to ground characteristics, and base isolation can be achieved by the heavy sludge.
Patent JP-H10158758-A (JP)
Title: Method for preventing hot-working cracking of tough pitch copper cast ingot
Inventor: WATABE MASAHITO
IPC: B22D27/00
Filed: 1996-12-05
Abstract: PROBLEM TO BE SOLVED: To reduce the sensibility to hot-working cracking of a cast ingot by controlling the crystal grain size in the tough pitch copper cast ingot and reducing the apparent quantity of Bi per unit crystal grain boundary area in the cast ingot, at the time of hot-working to the tough pitch copper cast ingot containing Bi. SOLUTION: The crystal grain size in the tough pitch copper cast ingot is controlled so that the apparent quantity of Bi per unit crystal grain boundary area in the tough pitch copper cast ingot becomes <=9.3×10<-8> (g/mm<2> ). The apparent quantity of Bi [the apparent concn. of Bi in the grain boundary: CBi (g/ mm<2> )] is defined as CBi ≡[Bi quantity of the cast ingot (g)/crystal grain boundary area (mm<2> )]. The hot-working such as rolling, forging, drawing, etc., is applied to this tough pitch copper cast ingot. The control of the crystal grain size in the tough pitch copper cast ingot is executed by casting of a molten tough pitch copper at a low temp. or giving an ultrasonic wave to the molten tough pitch copper at the time of casting or giving an electromagnetic-stirring to the molten tough pitch copper at the time of casting.  By this method, even if Bi as impurity is contained, the hot-working cracking can be prevented.
Patent JP-H02170740-A (JP)
Title: Facsimile testing system
Inventor: SATO TAMOTSU
IPC: H04L12/26
Filed: 1988-12-23
Abstract: PURPOSE:To execute a continuous test for a long time without requiring a testing crew by automatically repeatedly transmitting a specific telegram to a store and forward exchange, comparing the transmitted specific telegram with the received one, and discriminating their consistency. CONSTITUTION:The specific telegram is transmitted to a facsimile store and forward exchange 1, which transmits and receives information between facsimile terminal parts, by a facsimile test supporting device 2. When the transmitted specific telegram is returned from the facsimile store and forward exchange 1, transmission and reception are repeated between the facsimile store and forward exchange 1 and the test supporting device 2 while comparing the returned telegram with the transmitted specific telegram. Thus, the intervention of the testing crew is made unnecessary, and the continuously test can be easily executed.
Patent JP-H02170374-A (JP)
Title: Connector
Inventor: NUNOKAWA TOMOHARU
IPC: H01R13/639
Filed: 1988-12-23
Abstract: PURPOSE:To eliminate L-folding of a male terminal to be connected, by furnishing a male terminal inserting slit, which opens in the surface of a contact housing in the longitudinal direction of a contact and the direction perpendicular thereto. CONSTITUTION:A contact housing 1 is provided with an internal space 5, which accommodates a contact 2, and a male terminal inserting slit 6 which faces the contacting part 2a of the contact 2 and opens in the top surface 1a of contact 2 in its longitudinal direction and also in the rear surface 1c and front surface 1b in the direction perpendicular thereto. Accordingly the contact housing 1 can be moved along a wiring base board 11, the male terminal inserting slit 6 be filled in a male terminal 9 mounted upright on this wiring base board 11, and the contacting part 2a of the contact 2 in the slit 6 be put in contact with the male terminal 9. This allows contacting with the terminal 9 from the side of it, which eliminates folding of the terminal 9 into L form.
Patent JP-H06178126-A (JP)
Title: Image reproducing method and image reproducing device
Inventor: NOGUCHI SACHIHIRO
IPC: H03M13/00
Filed: 1992-12-04
Abstract: PURPOSE:To facilitate the judgment of the FIFO buffer empty state due to a decoding operation error and the FIFO buffer empty state due to the termination of a normal decoding operation. CONSTITUTION:In an entropy decoding part 1, for the event of the intermediate state stored in an FIFO buffer 3, an EOP code as an exclusive code is added to the end of the compressed image data corresponding to a screen. Therefore, in a control part 2, the EOP code is left in the FIFO buffer 3 even if an information source decoder finishes normally decoding the compressed data corresponding to a screen, the FIFO buffer 3 does not become empty and the empty state of the FIFO buffer 3 can be asserted due to a simple encoding operation error.
Patent JP-H11160898-A (JP)
Title: Electrophotographic photoreceptor and image forming method using that
Inventor: TAKIMOTO HITOSHI
IPC: G03G5/05
Filed: 1997-11-27
Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic image forming method by line scanning with laser light by which good electrophotographic characteristics are obtd., irregular density of an image due to interference fringes is prevented, and an image of high resolution can be obtd. SOLUTION: This electrophotographic photoreceptor is produced by successively depositing a charge producing layer and a charge transfer layer on a supporting body. The charge transfer layer contains a charge transfer material, an electron accepting substance and a saturable absorbing dye which shows saturable absorptivity at the exposure wavelength in a binder resin. As for the electron accepting material, specified dicyanovinyl compds., ketone compds., anthraquinone compds. or fluorenone compds. are preferably used. As for the saturable absorbing dye, specified naphthalocyanine dyes are preferably used. The electron accepting substance is preferably included by 0.1 to 100 equiv. to the saturable absorbing dye.