baber/WOPTO huggingface dataset:
Patent JP-H05129532-A (JP)
Title: Power semiconductor device with backward-voltage protective circuit
Inventor: SUTEIIBUN UONGU
IPC: H01L27/02
Filed: 1992-04-30
Abstract: PURPOSE: To prevent a device from being damaged by minimizing undesired operations of a parasitic transistor, due to an integrated pn junction by a pair of insulated gate field transistors. CONSTITUTION: Since a positive voltage is connected directly to a VCC terminal during normal operation, diodes D1 and D2 are reverse biased, thus rejecting an undesired current that flows through the junction of substrate - wells 102 and 104. However, when it is used for example, for an automobile, a negative voltage is applied to the substrate in an reverse voltage state which is generated due to the erroneous connection of a battery and the diodes D1 and D2 are biased in a forward direction, so that currents I1 and I2 flow in the direction of the arrow. A current that flows from the power transistor well 104 via the diode D1 is limited by a load resistor RL, but a current I2 that flows through a low-power circuit well 102 is not limited.  Therefore, in the case of a careless application of a reverse voltage, a large current causing a damage flows through a low-power circuit, thus preventing the device from being damaged.
Patent JP-H06326833-A (JP)
Title: Color picture reader
Inventor: ICHIKAWA YUICHI
IPC: H04N1/04
Filed: 1993-05-13
Abstract: PURPOSE:To provide a color picture reader capable of performing a reading with less color slurring by devising the reader such that color plural picture information on the same line are read simultaneously and all of plural light rays subjected to color separation are focused accurately onto plural line sensors. CONSTITUTION:This color picture reader in which an original 3 is illuminated by a light source 1 and the light reflected on the original 3 is converged on plural photodetectors 6 having plural linear picture element arrays 61, 62, 63 by an image forming lens 4 is provided with a multiple dichroic mirror 5 by which the light reflected on the original 3 and converged through the image forming lens 4 by the plural reflecting films 51, 54, 55 is reflected while being splitted into plural color component lights and the image is formed onto respective linear picture element arrays 61, 62, 63 of the photodetectors 6. The length of each optical path of each color component light between the image forming lens 4 and the photodetector 6 is defined as a focal distance of the image forming lens 4 with respect to each color component light.
Patent JP-S5634945-A (JP)
Title: Exhaust gas recirculation system
Inventor: SATOU KUNIHIKO
IPC: F02M25/06
Filed: 1979-08-31
Abstract: PURPOSE: To prevent deposits from accumulating to choke an exhaust pressure pipe through which an exhaust pressure runs to be applied to a pressure control valve for controlling an exhaust recirculation system of an internal combustion engine, by providing in the exhaust pressure pipe a check valve which only allows an inflow of atmosphere.  
     CONSTITUTION: Suction and exhaust pipes of an engine are communicated by an exhaust recirculation passage 2 having a feedback valve 3, for feeding back a part of an exhaust gas into suction air. A negative pressure in the suction pipe is transferred into a negative pressure chamber 33 inside the feedback valve 3 via a pressure control valve 4. The negative pressure to be fed into the negative pressure chamber 33 is placed under the control of an exhaust gas pressure in the recirculation passage 2, which is applied inside a pressure chamber 47 of the control valve 4. A check valve 6 only allowing an inflow of atmosphere through an air cleaner is provided for a pipe, thereby preventing deposits in exhaust gas from securely accumulating inside the pipe 5 by virture of atmosphere. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H05288349-A (JP)
Title: Automatic fire extinguishing device of cooker
Inventor: KITO AKIHITO
IPC: F24C3/12
Filed: 1992-04-03
Abstract: PURPOSE:To prevent an automatic fire extinguishing device of a cooker from mistaking the operation when cooking pots and pans are swung. CONSTITUTION:A temperature detecting portion 8, contacting to the bottom of cooking pots and pans 5, for receiving the temperature measured signal measured by a temperature sensor 6 transmits the temperature signal to a boiling detecting portion 9. In a slope detecting portion 10, the temperature raising slope is computed by the measured temperature from the temperature sensor 6, and then the temperature and measuring time of the second inflection point and the temperature raising slope after the second inflection point are detected. In an extinction temperature changing portion 13, the temperature raising slope is set in correspondence with that obtained from the slope detecting portion 10 when the temperature raising slope is different from the determined slope. Moreover, in an extinction operating portion 12, when the measured temperature is judged that it is higher than the determined extinction temperature in a comparing portion 11 for comparing the extinction temperature and the measured temperature of the temperature sensor 6, a cutoff valve 2 of a gas supplying pipe 3 is operated to stop supplying gas to a gas burner 4.
Patent JP-S5628299-A (JP)
Title: Bleaching composition
Inventor: ANSONII HENRII KUREMENTSU
IPC: D06L3/02
Filed: 1980-08-14
Abstract: A low temperature bleach system comprises an organic peracid and bromide ions in the absence of aldehydes and ketones. The bromide ions may be supplied from sodium bromide and typical peracids include diperisophthalic acid and monoperoxyphthalic acid. The peracid to bromide equivalent ration between 2:1 and 1:2 is preferred, but dye transfer and hygiene benefits are possible with a ratio up to 1:50. The system may be used as such or incorporated in a conventional detergent base.
Patent JP-S60258328-A (JP)
Title: Base-stone concrete block
Inventor: KUSATAKE SUGIAKI
IPC: E02D29/02
Filed: 1984-05-31
Abstract: PURPOSE:To provide base-stone blocks which can be solidly held, by a method wherein a stay, formed in a hexagon in cross section and tapered off, is projectedly formed closer to the side of the back of a block body having a pentagonal front, and the stay is provided at its forward end with a longitudinally-elongated rectangular stay base. CONSTITUTION:The front of a base-stone block body 1 is formed in a pantagon combined with an elongated rectangle and an equilateral triangle, an engaging projection 1' is protruded from the upper surface of the one oblique side, and a groove 1'' is provided in the upper surface of the other oblique side. A stay 2, formed in a hexagon in cross section and tapered off as seen in a plan view, is projectedly formed closer to the side of the back of the base-stone block body 1, and the stay 2 is provided at its forward end with a longitudinally-elongated rectangular stay base 3. The base-stone blocks A are aligned at the lowermost stage of a retaining wall, and ordinary oblong blocks are piled up thereon. This forms a self-support structure in which the stay bases of the blocks are vertically lined up, resulting in the possibility to build a strong retaining wall.
Patent JP-S62268263-A (JP)
Title: Reader
Inventor: HARADA KIYOSHI
IPC: H04N1/04
Filed: 1986-05-15
Abstract: PURPOSE:To attain stable picture reading by using an adhesives so as to adhere a solid-state image pickup element to an optical member forming part of an optical system thereby preventing position deviation between the solid-state image pickup elements. CONSTITUTION:An original light image focused by a lens 21 is separated into a divided light of an R-ch image and a divided light B of a C-ch image by using a dichroic mirror 23 provided in the inside of a prism 22 and they are formed onto a photodetecting plane of line image sensors R-ch CCD 25 and C-ch CCD 27 adhered directly to the prism 22 by the adhesives. Through the constitution above, in adhering the solid-state image pickup elements to the image forming position of the light split member being the optical members by the assistance of simple mount members, many causes to picture element deviation are eliminated, resulting in avoiding the deterioration in the picture quality based on said picture element deviation.
Patent JP-H11301027-A (JP)
Title: Printer
Inventor: OMURA HIROSHI
IPC: G03B17/50
Filed: 1998-04-22
Abstract: PROBLEM TO BE SOLVED: To obtain a print of high image quality though a printer is small-sized, lightweight and inexpensive. SOLUTION: In a printer 2, a film unit 27 is used as a recording material. In the exposure to the film unit 27, an exposure liquid crystal display unit 43 and an imaging lens 44 for enlarging and projecting the display image of the exposure liquid crystal display unit 43 to form an image are used in the exposure to the film unit 27. The exposure liquid crystal display unit 43 consists of a permeable liquid crystal panel and an LED corresponding to the three primary colors turning on and off behind this liquid crystal panel and, since multicolor expression of high brightness is possible by one pixel, a fine color image can be formed and an image of high image quality can be exposed to the film unit 27 within a short time.
Patent JP-H02292883-A (JP)
Title: Oscillation wavelength stabilized semiconductor laser device
Inventor: SUDO SHOICHI
IPC: H01S5/068
Filed: 1989-05-01
Abstract: PURPOSE:To enhance a bending operation, the length of a light absorbing body, and the like in degree of freedom by a method wherein gas containing a mixed gas of light absorbing gas and inert gas is filled inside or near a core, and a light absorbing fiber possessed of a sharp light absorbing line in a specified wavelength and a semiconductor laser are combined. CONSTITUTION:A light absorbing fiber 12 is provided, where its core or cavity provided near the core is charged with the mixed gas of light absorbing gas possessed of a sharp light absorbing line in a specific wavelength in a range of 0.3-3.0mum and inert gas. Outgoing light rays 16 projected from a semiconductor laser 11 are incident on one end of the light absorbing fiber 12 and made to pass through a core 34 of the fiber 12, and the incident light rays and the gas filled in a cavity 36 are made to act mutually on each other while the light rays are passing through to induce a sharp light absorbing line in a specific wavelength. Next, outgoing light rays 17 from the other end of the fiber 12 are detected by an optical detector 13 and converted into electrical signals, which are transmitted to a feedback circuit 14 and lastly introduced into a drive current terminal 15, and an oscillation wavelength is tuned to the specific line of light absorbing lines of the gas filled in the cavity 36 to be stabilized at this tuned wavelength.
Patent JP-H04268062-A (JP)
Title: Atomsphere carburization method for steel
Inventor: TAKAHASHI SUSUMU
IPC: C23C8/22
Filed: 1991-02-22
Abstract: PURPOSE:To easily control the content ratios of CO and CO2 and to produce a gas for the atmosphere high-speed carburization method for steel by adding the CO2 to a gaseous raw material of hydrocarbon or the hydrocarbon and air and reforming the gas. CONSTITUTION:The hydrocarbon, such as C3H8 or C4H10, and the air are reformed as the gaseous raw material to obtain the reformed gas for carburization essentially consisting of CO, H2, N2, etc. The above-mentioned gaseous raw material is reformed by adding the CO2 into this gas at this time. The content of the CO in the compsn. of the reformed gas is adjusted to 30 to 60vol.%. The adequate carbon potential is set with high accuracy and the atmosphere high-speed carburization of the steel at a high temp. is executed by using the gas compounded to allow the easy control of the content ratios of the CO and the CO2 in such a manner.
Patent JP-H08217739-A (JP)
Title: New cyanobiphenyl compound and its production
Inventor: ISHIZUKA HIDEMI
IPC: C09K19/12
Filed: 1995-04-14
Abstract: PURPOSE: To obtain the subject compound capable of expanding the temperature range for smectic A phase without raising the melting point of a mixed liquid crystal presenting smectic A phase, therefore having effect to expand the service temperature range for e.g. thermal writing-type display elements, thus useful as a liquid crystal material. CONSTITUTION: This compound is expressed by formula I (X is H or F; (m) and (n) are each 1-18), e.g. 4(pentadecafluoroctanoyloxy)undecamethyleneoxy-4'- cyanobiphenyl. The compound of formula I is obtained by reaction of 4- hydroxy-4'-cyanobiphenyl with a compound of formula HO-(CH2 )n -Br in an organic solvent in the presence of an alkali carbonate at 80-120 deg.C to form a compound of formula II which is then reacted with a compound of formula Cm X2m+1 COCl in an organic solvent in the presence of a base such as pyridine at 0-70 deg.C.
Patent JP-S5237612-A (JP)
Title: Diesel engine with preliminary combustion room
Inventor: INANAGA AKIYASU
IPC: F02B19/14
Filed: 1975-09-19
Abstract: PURPOSE: A diesel engine with preliminary combustion room capable to decrease heat loss by decreasing the jetting gas speed from the air revolution type preliminary combustion room jetting out the gas into the main combustion room. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S605467-A (JP)
Title: Magnetic disk device
Inventor: SONODA TAROU
IPC: G11B5/48
Filed: 1983-06-24
Abstract: PURPOSE:To improve the revolving accuracy of a magnetic disk device and the positioning accuracy of a magnetic head, by providing a vibration damping controller at the end of a shaft in order to reduce the deflection of the shaft due to the axial resonance in a real working state, and the deflection of shaft due to the vibration transmitted to the shaft from a bearing. CONSTITUTION:A magnetic matter 13 provided at the end part of a main shaft is set opposite to a permanent magnet 12 provided at the still side. Then the bearing rigidity is increased in both thrust and axial directions by making use of the magnetic attraction force (restoring force) generated between the matter 13 and the magnet 12. Thus the vibrations of a shaft can be reduced. That is, said attraction power prevents the eccentricity of a main shaft 1 in both trust and axial directions against a shaft vibration mode (bend deformation mode of the shaft itself) of the shaft 1 generated in the operation state of a real device and the deflection (rigit material mode) of the shaft 1 due to the oscillations transmitted to the shaft 1 from ball bearings 2 and 3. Thus it is possible to reduce various vibration amplitudes produced with displacement of shaft down to the response of a low amplitude.
Patent JP-H07320183-A (JP)
Title: Repeater board for prevention of disaster
Inventor: KOTSUNA YASUNORI
IPC: G08B17/00
Filed: 1994-05-26
Abstract: PURPOSE:To provide a repeater board for prevention of disasters where the size of a repeater attaching plate is easily increased to add repeater units. CONSTITUTION:Plural repeater units each of which monitors and controls plural terminals arranged in each prescribed region and transmits and receives signals to and from a central monitor device, a repeater attaching plate 8 where repeater units are arranged in a certain direction and are fixed, and a repeater board case which is formed like a box and whose bottom part the repeater attaching plate 8 is attached to are provided, and the repeater attaching plate 8 is formed as first and second end part pieces 9 and 10 divided in the arranging direction of repeater units, and a repeater attachment helping piece 11 can be inserted between both of end part pieces 9 and 10.
Patent JP-S5338295-A (JP)
Title: Light reflecting plate for liquid crystal display device
Inventor: HAMANO TADASHI
IPC: G02F1/13
Filed: 1976-09-20
Abstract: PURPOSE: To obtain a light reflecting plate of good contrast and color tone by using a copper alloy material of a color tone of pure copper or close to pure copper for the light reflecting plate, subjecting the surface of this material to irregular reflection treatment and using this plate in combination with polarizing filters. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S5338879-A (JP)
Title: System for discriminating and indicating defectiveness in sequence control
Inventor: IGARASHI HARUO
IPC: G05B23/02
Filed: 1976-09-22
Abstract: PURPOSE: To permit accurate detection of defective state by the provision of a circuit, which acts such that when a defectiveness occurs in a process it memorizes new factors attributable to the defectiveness and also normal process conditions by confirming the defectiveness and judges the memorized information until the indication is reset. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S6118828-A (JP)
Inventor: PEETAA KUNTSU
IPC: G01G23/01
Filed: 1985-05-22
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-H04339997-A (JP)
Title: Steel segment and coupler therefor
Inventor: MIYASHITA YOSHITAKA
IPC: E21D11/14
Filed: 1991-05-17
Abstract: PURPOSE:To obtain steel segments suitable for a coupler made of a high-rigid and high-strength material. CONSTITUTION:Front and back inner main beams 12 are fixed to the inner surfaces of the ends of the front and back main beams 11 and 11a of a steel segment 10. In this case, the inner main beams 12 are projected outwards from the main beams 11 and 11a, and a coupler plate 13 is fixed to the tip of the beam 12 to form a projected coupler 14. Bolt holes are formed in the beam 12 and the plate 13, and an end rib 17 is provided to the inner surfaces of the ends of the beams 11 and 11a to form a recessed coupler 18. Bolt holes 15a and 16a are formed in the coupler 18 and the rib 17, and when assembling a steel segment 10 for tunnel lining, steel segment 10 adjacent to each other in the circumferential direction of tunnel is connected by joining the projected and recessed couplers, centering the bolt holes of them, and clamping them by bolts.
Patent JP-S60257564-A (JP)
Title: Solid-state image pickup device
Inventor: AOKI TADASHI
IPC: H04N5/335
Filed: 1984-06-04
Abstract: PURPOSE:To obtain a digital signal corresponding to an optical input by forming a floating diffusion layer region having a conduction type reverse to a substrate and shaping an input gate, which can be controlled by the potential of the region, and an input-section diffusion layer region having the conduction type reverse to the substrate. CONSTITUTION:Beams projected to a photoelectric conversion section 1 are converted in a photoelectric manner, and generated charges are stored for a fixed period, overflow through a gate 4 set at predetermined potential, and are stored in a floating diffusion layer region 5. The potential of the region 5 changes by the charges, and the potential of an input gate 8 and an input-section diffusion layer region 9 is controlled. The exchange of charges between the photoelectric conversion section 1 and the region 9 by the control is completed, a transfer gate 2 is opened, and charges in the photoelectric conversion section 1 are discharged to a transfer section 3. When charges by an optical input exceed some threshold, charges are not fed into the transfer section 3, that is, charges in the transfer section 3 are zero; when charges by the optical input extend over some threshold or less, some constant charges flow into the transfer section 3, that is, charges in the transfer section 3 reach to 1. Accordingly, digital signals corresponding to optical inputs are obtained.
Patent JP-H09285000-A (JP)
Title: Switching regulator
Inventor: ISHIKAWA TETSUJI
IPC: H02M1/00
Filed: 1996-04-10
Abstract: PROBLEM TO BE SOLVED: To protect a semiconductor from a damage caused by a counter electromotive force which are induced at the invasion of a surge voltage such as a lightning surge or at the sudden change of an input voltage and improve the safeness and reliability of a switching regulator. SOLUTION: A 1st constant voltage device 7 is connected in parallel to the input terminals of a noise filter part 2 and a filter circuit which is composed of common mode inductors L11 and L12 and line capacitors C1 and C2 is provided in the noise filter part 2. A 3rd constant voltage device 6 is connected in parallel to the inductor L11 and, further, a normal mode inductor L2 is provided and a 2nd constant voltage device 5 is connected in parallel to the inductor L2.  A surge voltage such as an indirect lightning stroke and a counter electromotive force induced by the input of the surge voltage are absorbed by the 1st constant voltage device 7, the 2nd constant voltage device 5 and the 3rd constant voltage device 6 and insulating components are protected from the breakdown caused by the surge voltage and the surge responsiveness can be improved and the surge voltage energy can be absorbed securely.
Patent JP-H09295209-A (JP)
Title: Drill
Inventor: SHIGA SEIKI
IPC: B23B51/00
Filed: 1996-05-08
Abstract: PROBLEM TO BE SOLVED: To reduce the cost of a drill which is constituted by fixing a blade member and a shank which are separate from each other. SOLUTION: In a blade member 10, a cutting blade 24 is formed on a tip part of a cemented carbide flat plate. The cross line of a flank 22 and a side 20 is the cutting blade 24, and as the chip can be discharged through a side space of the side 20, a chip discharge groove extended in the axial direction need not be formed. In a shank 12, a slot groove 32 is formed in the axial direction from a chip surface 30 of a round bar made of special steel, and a base end part 16 of the blade member 10 is engaged in the slot groove 32, and brazed thereto. In addition, a coolant hole 36 having a large diameter hole part 38 is formed in the shank 12. Since the drill is simple in structure, it can be manufactured at low cost.
Patent JP-S594346-A (JP)
Title: Detecting circuit of interruption of optical input
Inventor: YAMAGUCHI NOBUHIDE
IPC: H04B10/2507
Filed: 1982-06-30
Abstract: PURPOSE:To detect the interruption of an optical input, by discriminating the state that an amplitude of a bias voltage to a photo diode is a predetermined value or over and the photo current is the predetermined value or over. CONSTITUTION:The photo current flowing to the photo diode 1 is extracted by inserting a minute resistor (RP)10, and inputted to an amplifier 4 via an amplifier 3 as a voltage V2 to a photo current IAPD. Further, it is compared with a threshold voltage Ip2. On the other hand, the bias voltage VAPD to the photo diode 1 is extracted as an input voltage V1 of the amplifier 2 and compared with a threshold voltage VR1. When the output of the amplifiers 2, 4 is both a high level, a detecting terminal goes to a high level and the interruption of optical input is detected.
Patent JP-S5637721-A (JP)
Title: Surface wave resonator
Inventor: FUJISHIMA SATORU
IPC: H03H3/08
Filed: 1979-09-03
Abstract: PURPOSE: To obtain a small-size elastic surface wave resonator which is excellent in both the working efficiency and the mass-productivity, by forming the elastic surface wave resonator and the serial capacity into one body.  
     CONSTITUTION: The inter-digital electrode 4 formed on the substrate 3 is composed with a pair of comb-line electrodes 5 and 6 inserted alternately. The common part of one electrode 5 is extended to form the 1st conductive film 7 in the fixed form which functions as the capacitor electrode. The piezoelectric thin film 9 is formed on the substrate 3 including at least the electrode 4 and the film 7 and excluding the terminal part 8, and the 2nd conductive film 10 is formed on the film 9 to oppose to the film 7. A function can be secured for the film 10 as the capacitor electrode and the terminal part of the other side. Thus the film 9 is inserted between the films 7 and 10, and the film 9 produces the electrostatic capacity between the films 7 and 10 as the dielectric substance. This electrostatic capacity is connected in series to the resonator consisting of the electrode 4 and between the terminal parts 8 and 10. 
     COPYRIGHT: (C)1981,JPO&Japio