baber/WOPTO huggingface dataset:
Patent JP-H06326519-A (JP)
Title: Quadrature demodulating circuit
Inventor: NAKAGAWA HIROYASU
IPC: H03D3/06
Filed: 1993-05-13
Abstract: PURPOSE:To provide compact quadrature demodulating circuit which has the high demodulation sensitivity and a wide dynamic range by using the secondary LPF circuits consisting of the resistances, the capacitor elements, etc., and connected together in series and in an odd number of stages and a phase comparator circuit which compares the phase of an FM modulated wave signal with the phase of the output signal of a phase shifting circuit and then setting the phase shifted variable of the phase shifting circuit at -cXpi/2 (n: a odd number) with the center frequency of an FM modulated wave. CONSTITUTION:The input FM modulated wave signal is non-linearly amplified by a limiter amplifier 1, and this amplified output signal is divided and sent to a phase comparator circuit 5 and a phase shifting circuit 2. The signal supplied to the circuit 2 undergoes its phase shift by an extent equal to a phase angle accordant with the frequency of the output signal of the amplifier 1 and then is sent to a phase comparator circuit 4 via a limiter amplifier 3. The phase shifted variable of the circuit 2 is set at -cXpi/2 (n: a odd number) with the center frequency of an FM modulated wave. Thus a signal accordant with the output phase difference between both amplifiers 1 and 3 is sent to an LPF 5. Then the output signal is smoothed and the higher harmonic component is eliminated. Thus a demodulated wave DED is obtained.
Patent JP-H04340004-A (JP)
Title: Burner
Inventor: NITTA SATORU
IPC: F23D3/18
Filed: 1991-05-16
Abstract: PURPOSE:To reduce efficiently the odor at the time of ignition for a burner such as a kerosene stove, etc. CONSTITUTION:This burner is constituted of a fuel tank 1 that has a wick gap 4 formed by a wick guiding cylinder 2 and a cylinder 3 outside the wick, wick 5 that is provided in the wick gap of said fuel tank 1 and moves freely up and down in it, combustion cylinder 9 installed above said wick guiding inner cylinder 2 and wick 3 outside the wick, wick lifting mechanism 8 that moves said wick 5 up and down, suction means 10 that is installed at a section of said fuel tank 1 and sucks and exhausts the fuel gas from the upper section of the wick 5 through the inside of said fuel tank 1, and controller that operates said suction means 10 before said wick 5 is ignited. Accordingly since this burner is ignited when the suction force of the suction device 10 is stabilized, it is possible to reduce the odor at the time of ignition efficiently.
Patent JP-H02288733-A (JP)
Title: Microwave transmitter-receiver
Inventor: ISHIDA MASAAKI
IPC: H04B1/40
Filed: 1989-04-28
Abstract: PURPOSE:To realize a microwave transmitter-receiver of small size by forming a transmission band stop filter in a polarizer separating and coupling a transmission system and a reception system and connecting directly a reception system low noise amplifier to the filter. CONSTITUTION:The side connecting to an antenna is constituted with a circular waveguide in which a transmission output and a reception input use one and same terminal in a 3-terminal polarizer 8 to separate and couple the transmission system and the reception system. A reception signal from the antenna is inputted from a transmission/reception common terminal 8b of the polarizer 8, separated by a polarized face and outputted from a reception output terminal 8c, a transmission frequency band is cut off by a transmission band stop filter 8d formed with the output terminal 8c after the separation and the resulting signal is fed to a low noise amplifier 5. As a result, the transmitter-receiver with excellent performance is formed with small size without saturating the low noise amplifier of the reception system.
Patent JP-H08303027-A (JP)
Title: Cushion seat fixture
Inventor: SAWANISHI RYOZO
IPC: E04H4/02
Filed: 1995-05-10
Abstract: PURPOSE: To eliminate the application of a special process to a cushion seat and at the same time, efficiently fasten the cushion seat. CONSTITUTION: Regarding a cushion seat 1 laid along the surface of a frame F, the head of a fixture body 3 is provided with a flange section 4 to be freely inserted in a gap between the seat 1 and the frame F, and the leg section of the body 3 is provided with a fixing section 5 to be freely fixed to the frame F. Also, the shank section of the body 3 is provided with an expansion allowing and jointing section 6 for connecting the flange section 4 and the fixing section 5 to each other in such a state as allowing the relative approach thereof.
Patent JP-H06326049-A (JP)
Title: Pretreatment of semiconductor surface
Inventor: SAKUMA KAZUTO
IPC: H01L21/768
Filed: 1993-05-13
Abstract: PURPOSE:To purify a contact section, and to reduce junction leakage currents by growing an oxide film on the surface of a silicon substrate exposed through etching by ECR oxygen plasma and etching and removing the oxide film. CONSTITUTION:A silicon oxide film 3 is deposited on a silicon substrate 1 containing a boron layer 2, and the silicon oxide film 3 is etched up to the silicon substrate 1 while using a photo-resist as a mask. The photo-resist is removed by a plasma asher, but a polymerized film 6 is formed in a contact section at that time. An oxide film 8 is grown on the contact section by ECR oxygen plasma 7, and the polymerized film 6 of the contact section is taken off through low-temperature oxidation. The oxide film in the contact section is eliminated by a buffer hydrofluoric acid solution, and a wiring metal 5 is deposited, thus forming a contact. Accordingly, a clean substrate surface is obtained, thus inhibiting the junction leakage currents of the contact section at a low value.
Patent JP-H06327266-A (JP)
Title: Semiconductor power conversion device
Inventor: TADA NOBUMITSU
IPC: H02M7/5387
Filed: 1993-05-13
Abstract: PURPOSE:To reduce the inductance of the conduct of a main circuit and then reduce efficiency by providing a plurality of semiconductor elements opposingly while the polarities are aligned and then overlapping the connection conductive board of the terminal at the opposing side, that of the terminal at a non- opposing side of a single side row, and that of the terminal of the non-opposing side of the row at the other side via an insulator. CONSTITUTION:P-side modules 4a, 4b, 4c, and 4d are provided adjacently while the polarities are aligned. N-side modules 5a, 5b, 5c, and 5d are provided while the polarities are aligned, and then the emitter terminals of the N-side modules 5a, 5b, 5c, and 5d are connected with a band-shaped connection conductor 13. Then, a band-shaped output terminal connection conductor 14 is overlapped with a slight spacing at the outside and then the collector terminal of the N-side modules 5a, 5b, 5c, and 5d and the emitters of the P-side modules 4a, 4b, 4c, and 4d are connected. Further, a connection conductor 12 is overlapped with a slight spacing at the outside and is connected to the collector terminal of the P-side modules 4a, 4b, 4c, and 4d.
Patent JP-S5814722-A (JP)
Title: Manufacture of mold for synthetic resin
Inventor: MIYASHITA TAKAAKI
IPC: B29C33/00
Filed: 1981-07-17
Abstract: PURPOSE:To assemble and bond synthetic resin molding pieces without depending upon working precision of each part by a method wherein the synthetic resin molding pieces are fixed with photosetting resin adhesives, and synthetic resin molding pieces are positioned, bonded and fixed by irradiation of light. CONSTITUTION:Metallic pins 7A, 7B are inserted into holes provided on base materials 6A, 6B and fixed suitably by adhesives or the like. Photosetting resin adhesives 9 are dropped on the fixed metallic pins 7A, 7B to insert synthetic resin molding pieces 8A, 8B. After the synthetic resin molding pieces 8A, 8B are positioned at the determined positions ultraviolet rays are irradiated, photosetting resin adhesives 9 are hardened and the synthetic resin molding pieces 8A, 8B are bonded and fixed. Thus, when the synthetic resin molding pieces are bonded and fixed they can be adjusted without depending upon the working precision of each part, therefore, are inexpensive and high precision mold can be manufactured.
Patent JP-S5737943-A (JP)
Title: Optical data link system
Inventor: SAKAMOTO FUKUMA
IPC: H04B10/25
Filed: 1980-08-15
Abstract: PURPOSE:To make small the linking part between an optical fiber and an electronic device, by containing an electro-photo conversion element to one plug itself linking the optical fiber to the electronic device and an optical-electric conversion element and an amplifying element to another plug. CONSTITUTION:Only a light emitting diode 8 which is an electro-optical conversion element is contained in a plug itself 12 to which one terminal of an optical fiber transmission line 1 is inserted and fixed by opposion to the end of the line 1, to constitute an electro-optical conversion section. A photodiode 9 being an optical- electro conversion element, an amplifier 10 amplifying this conversion signal, and a feedback resistor R4 are contained to another plug itself 13 of the line 1 to constitute the optical-electric conversion section. The connection with electronic devices is made via electric terminals 14, 14a, 15, 15a-15c. Thus, the size of linking part can be made small.
Patent JP-H10288422-A (JP)
Title: Air cooling mechanism for condenser for refrigerator
Inventor: MARUYAMA TSUYOSHI
IPC: F25B39/04
Filed: 1997-04-14
Abstract: PROBLEM TO BE SOLVED: To provide an air cooling mechanism for a condenser for a refrigerator to properly hold a pressure of a refrigerant, discharged from the interior of the condenser, in a given allowance range. SOLUTION: An opening part 50 with an opening door 40 is arranged on the peripheral wall of a duct 10 between the suction side of the duct 10 in which a condenser 20 is disposed and the exhaust side of the duct 10 in which a fan 30 for exhaust is arranged. Further, a regulation means is provided to regulate the degree of opening of the opening part 50 by the opening door 40 when a pressure of a refrigerant discharged from the interior of the condenser 20 is deviated from a given allowance range. When a pressure of a refrigerant discharged from the condenser 20 is deviated from a given allowance range, the opening of an opening part 50 is regulated to the wide or the narrow opening of the opening port 50 by the opening door 40. Further, an amount of air for cooling passing through the periphery of the condenser 20 is regulated high or low.
Patent JP-S63274491-A (JP)
Title: Treatment of plating waste liquid containing phosphorous acid or its salt
Inventor: KANBE SHIRO
IPC: C23C18/16
Filed: 1987-05-07
Abstract: PURPOSE:To effectively treat the title waste liquid by introducing a photocatalyst carrying fine catalytic particles into the plating waste liquid contg. phosphorous acid and thereafter casting light thereon. CONSTITUTION:A photocatalyst is formed by carrying the fine particles of a catalyst consisting of metal such as Pt and Ni and metallic oxide such as RuO2 which activate the photocatalyst on the surfaces of semiconductor particles such as SiC, CdS and TiO2. This photocatalyst is introduced into waste liquid contg. phosphorous acid or its salt and then light is cast by sunlight, halogen flash and xenon flash to decompose phosphorous acid or the like. Furthermore Cu and Na, etc. are added thereto and phosphate difficult-to dissolve in water is formed and thereafter separated and removed. Thereby this method largely contributes to pollution prevention.
Patent JP-2000300118-A (JP)
Title: Lure
Inventor: SUGIMOTO YOSHIHIKO
IPC: A01K85/01
Filed: 1999-04-20
Abstract: PROBLEM TO BE SOLVED: To provide a lure, which prevents, when caught by an obstacle, its arm from being bent or damaged, and has blades which sufficiently rotate when the lure is thrown. SOLUTION: This lure 1 has an almost V-shaped arm 2 of titanium alloy, a hook 11 connected to one end of the arm 2 via a sinker 10, and leaf-shaped blades 6 and 8 of titanium alloy connected to the other end of the arm 2 via connections 12 and 13 in such a way to be freely rotative on the arm 2. When the lure 1 is thrown at a target point and sunk there by shaking the rod in the target direction, the blades 6 and 8 rotate by buoyancy and resistance of water acting on them in a concerted manner, reflecting light to lure bass as the target fish. When the blade 6 or 8 is caught by an obstacle, it can easily be released from it by pulling up the whole lure 1, because the arm 2 is elastically deformed.
Patent JP-S5814789-A (JP)
Title: Image recording method for printer
Inventor: MATSUSHITA HIROSHI
IPC: B41J2/46
Filed: 1981-07-17
Abstract: PURPOSE:To make as short as possible a sub-scanning period and contrive to record at a higher speed, by a method wherein the circumferential length of a drum is set to correspond to the sum of the period of time required for main scanning and the period of time required for sub-scanning, in a step lead type image recording method. CONSTITUTION:The drum 1 of a photosensitive material having the circumferential length of (l) is provided with a non-recording zone S of a width of d in the axial direction on the surface, the main scanning is conducted in the period for a recording zone having a length of (l-d), and the sub-scanning is conducted in the period for the non-recording zone having the width of (d). Namely, the width (d) of the non-recording zone S is so set as to secure a period of time sufficient to move an exposure unit 2 by one-block distance corresponding to an array width when the non-recording zone S passes by the unit 2. Accordingly, the recording of one-line section in the X direction by a recording head 2 and the movement of the head 2 by one-block distance in the Y direction are continuously performed in one rotation of the drum 1.
Patent JP-H07289885-A (JP)
Title: Microcapsulated yeast, its production and feed containing the same
Inventor: KOBAYASHI HIROKI
IPC: C12N1/16
Filed: 1994-04-26
Abstract: PURPOSE:To obtain a yeast encapsulated with phospholipids which is highly practical by bringing a yeast into contact with a soln. containing univalent alcohol having specified carbon number and containing phospholipids. CONSTITUTION:This yeast encapsulated with phospholipids is obtd. by bringing the yeast into contact with an alcohol soln. containing phospholipids. As for alcohol, univalent alcohol having 1-4 carbon number, preferably that having 1-3 carbon number is used. Ethanol is most preferable. As for the concn. of alcohol in the system, it is preferable to carry out the process generally in about >=50wt.% concn. of alcohol. The amt. of the phospholipids used is not specified but is determined according to the amt. to be encapsulated, the amt. of solvent used or other conditions. Generally, about 5-100wt.% phospholipids based on the yeast (dry weight) is enough, and if necessary, about >=100wt.% may be used. The density of yeast cells (dry weight) in the suspension liquid is not specified but is about 5-20wt.%.
Patent JP-H07292944-A (JP)
Title: Floor board and laid structure of floor board
Inventor: HORI SHUJI
IPC: E04F15/04
Filed: 1994-04-26
Abstract: PURPOSE:To easily and surely perform an operation for laying floor boards on a floor bed. CONSTITUTION:In this structure wherein an appropriate number of rectangular floor boards 10 are interconnected by tongue-and-groove means comprising tongues 12 and grooves 11 fitted together, and are laid on the top surface of a floor bed, the grooved side of each floor board 10 is so formed that of upper and lower projecting edges that form the groove 11, the lower projecting edge 14 is projected more than the upper projecting edge 13. The tongued side of each floor board 10 is so formed that the depth of the top surface 15 of the tongue is made smaller than the depth of the bottom surface 16 of the tongue to match the grooved side 11, and, the floor boards 10 are connected together and laid in place with the lower projecting edge of each groove 11 secured to the floor bed by the required nails 18 and with the tongues fitted into the grooves 11.
Patent JP-S604727-A (JP)
Title: Combustion apparatus
Inventor: HASHIDO KENKICHI
IPC: F23N5/12
Filed: 1983-06-21
Abstract: PURPOSE:To improve the detection accuracy of a flame detecting sensor, by positioning a support section of a flame detecting sensor at a gap between flames of a burner head having a plurality of flame holes, and extending vertically down the tip section thereof from the central section of the burner head to the central part of the flame hole. CONSTITUTION:A support section of a flame detecting sensor (e.g. a flame rod) 19 is positioned at a gap between flames 21, and only the tip section 22 thereof is to be located in a flame 21. Thus, in a normal state, a flame current is passed between the flame rod 19 and burner head 16 and an earth such as an earth plate 23 or the like by the formation of flame 21. In such an abnormal state that the flame 21 moves away from the flame hole to lift over the tip section 22 of the flame rod 19, the flame current lowers radically, so that the lifted state of the flame can be detected clearly. In addition, the reliability of the heat resistance of the support section of the flame rod 19 can be improved.
Patent JP-S592178-A (JP)
Title: Terminal device of voting system
Inventor: TANAKA TAKEHIKO
IPC: G06Q50/00
Filed: 1982-06-29
Abstract: PURPOSE:To enable display according to either gamble type fix format or free format detecting mode of input request, by providing controlling function of above-mentioned two formats in the firmware of a CRT display. CONSTITUTION:A voting system 3 is connected to a subscriber 1 through a switchboard 2. The voting system consists of a host CPU 4 and CRT terminals 5A-5N, and operators 7A-7N are provided in each CRT terminal. The CRT terminal consists of CRT5A1, a firmware 5A2 and a check table 5A3. Controlling function of gamble type fix format and free format is stored in the firmware 5A2. Input request from a subscriber is checked by this, and format processing is detected as to which one it belongs. Thus, display according to the format is performed without interrupting the host CPU.
Patent JP-H08282201-A (JP)
Title: Wheel for vehicle
Inventor: KATO TAKASHI
IPC: B60B1/12
Filed: 1995-04-12
Abstract: PURPOSE: To decrease the quantity of material for a spoke member so as to improve the manufacturing efficiency by laying a support member in a hollow spoke, and fixing both end parts of the support member to the wall part of the spoke part. CONSTITUTION: A hollow spoke part 2 is radially extended from the hub part. A rim part 3 is integrally formed on the forward end part of the spoke part 2. A bar-like support member 4 is arranged in the cross direction in the interior of the hollow spoke part 2, and both end parts are inserted in the wall part. The bar-like support member 4 is made of aluminium which is the same material as that of a wheel. Builtup parts 22, 22 are formed in the periphery of the bar-like support member 4 on the inside and outside of the wall part of the spoke part 2, thereby firmly supporting the bar-like support member 4. Though the bar-like support member 4 has a recessed groove 41 in the substantially central part thereof, a spiral groove may be formed in place of the recessed groove 41. Thus, the strength of the hollow spoke part 2 can be kept without increasing its thickness.
Patent JP-H10303701-A (JP)
Title: Capacitance circuit
Inventor: KAWAMURA YUKIO
IPC: H03H11/48
Filed: 1997-04-30
Abstract: PROBLEM TO BE SOLVED: To improve the degree of integration of an integrated circuit having a capacitor. SOLUTION: When a level at an input terminal IN1 is increased, an emitter level of transistors(TRs) 14, 15 is increased by an operational amplifier 13. Thus, TRs 12, 15 become conductive, and a current is received from the input terminal IN1 . The TRs 12, 15 are in a Darlington connection, a current resulting from dividing the input current by a current amplification factor is given from the TR 15 to a capacitor 1 and the capacitor 1 is charged by a small current. When the level of the input terminal IN1 is decreased, the TRs 11, 14 are conductive by the operational amplifier 13, and a current is received from the input terminal IN1 . The TRs 11, 14 are in a Darlington connection and a current resulting from dividing the input current by a current amplification factor is given from the capacitor 1 to the TR 15 and the capacitor 1 is discharged by a small current.
Patent JP-H05308190-A (JP)
Title: Through-hole metal core board
Inventor: NISHIKAWA TOSHIAKI
IPC: H05K3/44
Filed: 1992-05-01
Abstract: PURPOSE:To provide a through-hole metal core board which enhances an insulating withstand voltage between a wiring pattern including a through-hole metallized part and a metal plate. CONSTITUTION:The title board is constituted in the following manner: a ceramic 2 is formed at the circumference of a metal plate 1; after that, a through hole 3 which is passed from the surface to the rear is formed; a through-hole inner- wall insulator 4 is formed selectively on the inner wall of the through hole 3; and, after that, a through-hole metallization operation is performed by using a conductor 5.
Patent JP-H06326705-A (JP)
Title: Method for controlling automatic increase/decrease of number of connected channels for isdn utilizing equipment
Inventor: KUWANA EIJI
IPC: H04L69/14
Filed: 1993-05-14
Abstract: PURPOSE:To allocate a digital communication channel for an ISDN line effectively for the ISDN utilizing equipment. CONSTITUTION:A communication traffic measurement equipment 201 of an ISDN line channel connection controller 200 measures a communication traffic of utilizing equipments 101-103. When the communication traffic of each utilizing equipment is less than a capacity of a number being subtraction of one from a channel number allocated to its utilizing equipment by a predetermined traffic, the number of allocated channels to the utilizing equipment is decreased by one. On the other hand, when the communication traffic of each utilizing equipment approaches the capacity of the channel number allocated to its utilizing equipment by a predetermined traffic, the number of allocated channels to the utilizing equipment is increased by one.
Patent JP-H02293249-A (JP)
Title: Antilock braking control method
Inventor: YAHAGI TOSHIO
IPC: B60T8/172
Filed: 1989-05-01
Abstract: PURPOSE:To avoid a relocking trend by starting a braking force reincrease after braking decrement by a second lock tending signal yet larger at a time when wheel speed comes yet nearer to body speed than that by a first lock trending signal. CONSTITUTION:According to body speed being detected by a sensor 30, first and yet larger second reference wheel speeds are set by operational means 31, 32, and when wheel speed being detected by a sensor 35 goes beyond these wheel speeds, both first and second slip signals are outputted out of comparators 33, 34. In addition, wheel adjustable speed by an operational means 36 is compared with setting decrement acceleration by comparators 37, 38, and first and yet larger second lock tending signals R1, R2 are outputted from AND circuits 39, 40 by the signal. Then, a braking force reincrease after a braking force decrement by the second lock tending signal R2 is started at a time when wheel speed Vw comes nearer to body speed Vv than that after the braking force decrement by the first lock tending signal R1. Thus, a relocking trend after lock trend elimination is avoidable.