baber/WOPTO huggingface dataset:
Patent JP-S5659209-A (JP)
Title: Focusing detector
Inventor: SUZUKI TAKEOMI
IPC: G03B13/36
Filed: 1979-10-19
Abstract: PURPOSE: To make use convenient by providing a D/A converting circuit and a sample holding circuit between the arithmetic circuit and display device of a focusing detector which projects object images to a photodetector array and digitally displaying the focusing state by way of a signal processing circuit and arithmetic circuit, and outputting an analog focusing signal.  
     CONSTITUTION: The image of an object 1 is projected onto the photodetector array of a photodetecting device 3 by way of an imaging optical system 2, and the illuminance signal corresponding to the intensity distribution thereof is converted to a digital illuminance signal by a signal processing circuit 4. The output signal thereof is arithmetically processed by a central processing unit 5, and the digital focusing signal is sent to a D/A converting circuit 6. The analog focusing detected signal which is the output thereof is analog-displayed in an analog display device 8 by way of a sample holding circuit 7, and the imaging system 2 is moved by operating an optical system driving unit 10 by way of an optical system driving control circuit 9, whereby focus controlling is accomplished. Since the focusing state is analog- displayed, this device is convenient for use. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H10326433-A (JP)
Title: Integrated optical element, optical pickup, and optical disk device
Inventor: NISHI NORIAKI
IPC: G11B11/10
Filed: 1997-05-26
Abstract: PROBLEM TO BE SOLVED: To realize high reliability of an integrated optical element by making a reproduced signal accurately detectable. SOLUTION: The integrated optical element 21 is provided with a light emitting element 27 emitting light, a prism 28, on which a returned light from an optical disk is made incident, a first light receiving element 31 detecting one part of a returned light, and a second light receiving element 33 detecting a returned light being not detected by the first light receiving element 31. The prism 28 has a first surface 28a, a second surface 28b opposing to the first surface, and a third surface 28c reflecting light from the light emitting element 27 toward the optical disk. The second surface 28b reduces reflectance of a part on which a returned light reflected by the second light receiving element 33 is made incident less than reflectance of a part reflecting a returned light reflected by the first surface 28a.
Patent JP-S62293012-A (JP)
Title: Gas cooking stove
Inventor: UEDA KATSURO
IPC: F23D14/06
Filed: 1986-06-11
Abstract: PURPOSE:To obtain a gas cooking stove which is safe and of which combustion rate is effectively controllable, by controlling the combustion rate by opening and closing a plurality of small holes to flow out gas in succession by revolving a gas cut-off cock. CONSTITUTION:Small holes 2a, 2b, 2c are provided on the discharge port 1a of a gas cut-off cock 1. The sizes of holes are 2a<2b<2c. Small holes 4a, 4b, 4c are provided on a gas cut-off cock 3. They are provided with angles deviated from each other. The holes 2a and 4a, 2b and 4b, 2c and 4c can communicate with each other when the cut-off cock 3 is revolved. Gas passages 5 and 6 are connected to the discharge port 1a. A small nozzle 9 and a large nozzle 10 are fitted to the ends of passages 5 and 6, respectively, and a small burner 11 and a large burner 12 are positioned to the nozzles 9 and 10, respectively. A valve 13 in the passage 6 is opened and closed by a cam 15 which is interlocked with the operating lever 14 of a cut-off cock 3. A distance from the point A to the point B shows the combustion of a small burner 11 only. The valve 13 is opened at the point C, and the combustion rate of a small burner 11 is reduced at the same time when the large burner 12 starts burning. Thereby an unstabilized zone of low combustion is eliminated from the large burner 12, and the combustion rate of a burner increases correspondingly to the angle of revolution of an operating lever 14.
Patent JP-2000321470-A (JP)
Title: Optical fiber and laser machining apparatus
Inventor: MORIBE HIDEMASA
IPC: B23K26/064
Filed: 1999-05-17
Abstract: PROBLEM TO BE SOLVED: To obtain the optical fiber which can securely prevent with a simple constitution even high-power light from being reflected. SOLUTION: A columnar quartz block 12 which has an about 10 to 30 mm diameter is fused and connected to both ends of an optical fiber which has its outer peripheral surface coated with a clad 22 and has a core 21 with a diameter of several hundreds of μm. An AR coating 25 is provided on the end surface where the laser light of the quartz block 12 is made incident or emitted. The power density of laser light decreases on the end surface of the quartz block 12 having a large area and hence never damages the AR coating 25. Even high-power laser light can securely be prevented from being reflected without being deformed in the beam shape.
Patent JP-H05308564-A (JP)
Title: Video camera apparatus
Inventor: YAMASHITA MASAHIRO
IPC: H04N5/235
Filed: 1992-04-30
Abstract: PURPOSE:To enable image pickup with one video camera apparatus by switching two or more kinds of aspect ratios. CONSTITUTION:An aspect ratio conversion lens 16 is arranged in a lens part 10 so as to be exchanged by switching by a dummy lens 17. The operation of a shading correction circuit 22 and that of a view finder driving circuit 25 are switched, respectively by a signal from a switch 18 operated interlocking with such exchange by switching, and shading correction and display driving by a view finder 26 in accordance with the aspect ratio at that time can be performed.
Patent JP-S6114041-A (JP)
Title: Casting method of nonferrous metal
Inventor: WAKAMATSU TETSUO
IPC: B22C1/00
Filed: 1984-06-28
Abstract: PURPOSE:To increase considerably the number of use by using a riser flask made of silicon nitride having specific heat conductivity and deflection strength. CONSTITUTION:The riser flask made of the silicon nitride having <=12kcal/mh deg.C heat conductivity and >=3kg/mm.<2> deflection strength is used as the riser flask 2 for a metallic mold 4 and casting is executed. The number of use is thus considerably increased without the blowholes and pinholes of a nonferrous metal.
Patent JP-H06349496-A (JP)
Title: Manufacture of negative electrode lattice for lead-acid battery
Inventor: TAKAHASHI KATSUHIRO
IPC: H01M4/82
Filed: 1993-06-07
Abstract: PURPOSE:To prevent the corrosion of a negative electrode caused by the exposure of lugs and improve the battery performance by rolling a final rolled body to the prescribed times the rolled body before rolling in thickness when the multi-stage rolled body of a lead alloy is formed, and molding part of it as lugs. CONSTITUTION:In the cold rolling process by an (n)-stage roller, Do is the thickness of a slab of a continuous cast body, Di is the thickness after the (i)th rolling, R is the curvature of the (i)th roller, and Dn is the thickness after the (n)th rolling. The thickness Dn of the final rolled body is set to 65% or above of the thickness Dn-j of the rolled body before the final rolling, and part of the rolled body is molded into electrode plate lugs 1 of a negative electrode strap 2. The linear velocity of the roller at the time of rolling is set to 10m/min or above.
Patent JP-H11318080-A (JP)
Title: On/off circuit for multiple output switching power source
Inventor: SATO TAKASHI
IPC: H02M3/28
Filed: 1998-05-01
Abstract: PROBLEM TO BE SOLVED: To provide an output on/off circuit for a multiple output switching power source, in which the breakdown of a discharge element is prevented by reducing the discharge current of a discharging element for discharging load side capacitance charges, when an output on/off switching element is turned off. SOLUTION: A switching time for a control element Q4, which controls the turning on and off of a discharging element Q3 discharging charges of a load side capacitance C2 by causing a switching element FET Q2 to be turned off with a signal from a load side which is inputted from a signal input terminal 7, is controlled by time constant circuits R2, C4. The breakdown of the discharging element Q3 is prevented by restraining the peak value of a discharging current of the discharging element Q3, when the switching element FET Q2 is turned off. Thus use in the optimum operation region is made possible.
Patent JP-H01304770-A (JP)
Title: Semiconductor memory device
Inventor: SATO SHINICHI
IPC: H01L21/8244
Filed: 1988-06-01
Abstract: PURPOSE:To reduce a memory cell area and to improve integration density by providing a plurality of MOS transistors constituting one memory cell inside a groove which is provided inward from a surface of a semiconductor substrate. CONSTITUTION:A gate electrode 3' of MOS transistors Q1, Q2 is formed at a side of a groove 4 formed inside a silicon substrate 1, and an impurity diffusion layer 2' which is relevant to a common source of MOS transistors Q1, Q2 is formed at the bottom thereof. Resistors R1, R2 can be positioned on an upper layer of MOS transistors Q3, Q4 as usual, or can be formed at another side of the groove 4. Therefore, two MOS transistors Q1, Q2 of the four MOS transistors Q1-Q4 are formed inside the groove 4 of the silicon substrate 1. An area of a memory cell can be thereby reduced.
Patent JP-H0454834-A (JP)
Title: Power supply switcher for battery charger associated with engine generator
Inventor: KUBOMOTO ISAMU
IPC: H02J7/14
Filed: 1990-05-25
Abstract: PURPOSE:To lengthen the service life of contact of electromagnetic relay for switching a charging power supply by providing a generator side electromagnetic coil and a commercial power supply side electromagnetic coil and setting an interval in which both relay contacts are open. CONSTITUTION:During steady generating interval of an engine generator 1, a power supply switching control circuit 27 closes a generator side relay contact 23a(CHX2) and opens a commercial power supply side relay contact 25a(CHX1) whereas during the interval other than the steady generating interval, the contact 23a(CHX2) is opened and the contact 25a(CHX1) is closed. Furthermore, an interval in which both relay contacts are open is provided between a commercial power supply side charging stop interval in which the contact 25a(CHX1) is open and a generator side charging start interval in which the contact 23a(CHX2) is closed. The both relay contact open interval is also provided between a generator side charging stop interval in which the contact 23a(CHX2), is open and a commercial power supply side charging start interval in which the contact 25a(CHX1) is closed.
Patent JP-H031970-A (JP)
Title: Thermal transfer color recorder
Inventor: KIMURA HIROMI
IPC: B41J17/32
Filed: 1989-05-30
Abstract: PURPOSE:To enable an image containing a middle tone to be recorded with a single device without any waste of an ink sheet by a method wherein an identifying means for two kinds of ink sheet cassettes is established to an installing part, and an image data is treated with either of a binary conversion part or a gradation conversion part based on said identifying results to be outputted to a thermal head. CONSTITUTION:In the case where an installed cassette is judged to be a fusible ink sheet cassette 112 with a sensor part 2, an output data from an image data read part 1 is outputted to a thermal head 5 via binary conversion part 4. The binary conversion part 4 converts an image signal to a binary signal. An area of a recording dot in a matrix is varied thereby, and a middle tone is falsely is exressed. Then, since a sensor 2a does not generate a marker detecting signal when a sublimate ink sheet cassette 111 is installed, the installed cassette is judged thereby. In that case the output data from the image data read part 1 is outputted to the thermal head 5 via a gradation conversion part 6. The gradation conversion part 6 outputs for electrification time corresponding to a required middle tone to perform middle tone recording.
Patent JP-H09314198-A (JP)
Title: Feed in-out apparatus of digestion tank stirrer
Inventor: KAMIMURA KENJI
IPC: C02F3/28
Filed: 1996-05-30
Abstract: PROBLEM TO BE SOLVED: To safely enable long-time continuous operation while suppressing the vibration of a guide rod by a stirrer and the generation of a vibration sound. SOLUTION: A buffer member 5 is provided to the inner peripheral surface of a water seal pipe 34. The buffer member 5 consists of the holding jig 52 provided to the inner peripheral surface of the water seal pipe 34 over a peripheral direction and the buffer material 51 fixed to the inside of the holding jig 52 by a head screw bolt. A stirrer 3 is arranged to the upper end of a draft tube 2 through a feed in and out device to which the buffer member 5 is attached. Even if the stirrer 3 is operated, a connection ring 28 is restricted by the buffer member 5 and an impact is bufferred and the vibration of a guide rod 22 is prevented.
Patent JP-H1049568-A (JP)
Title: Circuit board designing method and recording medium
Inventor: NAKA MASAMICHI
IPC: G06F17/50
Filed: 1997-05-27
Abstract: PROBLEM TO BE SOLVED: To provide a circuit board designing method capable of surely reducing unnecessary radiation and reducing also manufacturing cost and a recording medium. SOLUTION: Respective signal lines are virtually wired with a virtual cross section read out from a virtual cross section describing table and its unnecessary radiation quantity X is calculated (S3, S4). As to a signal line of which unnecessary radiation quantity X exceeds an allowable value A, an improved solution N1 obtained by improving the virtual cross section and an improved solution N2 obtained by inserting countermeasure parts are calculated (S5 to S7). Then, both the improved solutions N1, N2 are allocated to respective layer structure parts read out from a layer structure describing table (S8).  Then, executable solutions P are extracted from the combinations of the improved solutions N1, N2 and respective layer structure parts and an optimum solution Q is selected out of the extracted solutions P based on manufacturing cost and the unnecessary radiation quantity X (S9, S10). Then, respective signal lines are automatically wired to the layer structure determined by the optimum solution Q (S11).
Patent JP-H0430738-A (JP)
Title: Device for cleaning water in water tank for storing fish
Inventor: NEGORO MASAAKI
IPC: A01K63/04
Filed: 1990-05-29
Abstract: PURPOSE:To obtain the title device capable of immediately starting removal of NH4 excreted when fishes are charged to a water tank and stably cleaning water, by cleaning water in the water tank for storing fishes with a membrane separation device containing a number of ammonia-permeable hydrophobic hollow yarn membranes. CONSTITUTION:Water in a water tank 9 for storing fishes is discharged through a water circulating pump 2 from a discharge piping, and then the discharged water is passed through a membrane separation device 3 containing a number of ammonia-permeable hydrophobic hollow membranes 4 to clean the water. Then, cleaned water from the membrane separation device 3 is returned through a water circulating piping 5 into the water tank 9 for storing fishes, and simultaneously an acid liquid is fed to an ammonia-absorbing liquid circulated through the membrane separation device 3 to neutralize the ammonia-absorbing liquid, and a part thereof is released.
Patent JP-H10330155-A (JP)
Title: Ceramic composition for low temperature firing and production of ceramic
Inventor: KAWAI SHINYA
IPC: C04B35/46
Filed: 1997-05-27
Abstract: PROBLEM TO BE SOLVED: To obtain a ceramic composition capable of being formed into multilayer by using gold, silver and copper as a wiring conductor and capable of providing a ceramic having a high relative dielectric constant and a high strength, and further to provide a method for producing the ceramic. SOLUTION: A composition obtained by adding 5-10 pts.wt. B2 O3 or 1-20 pts.wt. glass containing at least SiO2 and B2 O3 to 100 pts.wt. main component comprising 30-97 wt.% complex oxide containing at least Zn and Ti, and satisfying the formula 0.3<=(x)<=8 when the composition thereof is expressed by the formula Zn.xTi in terms of atomic ratio of the metal, and 3-70 wt.% total of Al and Si in terms of oxides, is compacted into a prescribed shape, fired at 800-1,000 deg.C to provide a ceramic including a gahnite crystal phase 3, willemite crystal phase 2, and TiO2 crystal phase 1, and further having one or more kind of precipitated spinel crystal phase, ilmenite crystal phase, Al2 O3 crystal phase and SiO2 crystal phase, and further having >=8 dielectric constant and >=250 MPa traverse strength.
Patent JP-S5563066-A (JP)
Title: Swing type check valve
Inventor: NAKANISHI SADAYUKI
IPC: F16K15/03
Filed: 1978-11-06
Abstract: PURPOSE: To obtain the subject valve at a low cost facilitating machining process, unnecessitating the fitting and the adjustment which require much labor in assembling, by a mechanism wherein the part member supporting plate valve body and the member sealing fluid are separated each other.  
     CONSTITUTION: An arm 52a projected from the back of plate valve 52 is fixed to the rotary axis 54, which is supported by the valve housing 51, so that the valve body 52 is made come in contact with the annular valve seat 53 formed around the opeining 51c of passage 51a by the rotation of axis 54. An annular single-groove 61 is formed on the front inner circumference of the valve seat 53 of housing 51, and another single-groove 62 is provided to its inside. A cylindrical sheet retainer 66 with a fan-shaped projection 66b is fit in the single-groove 62 so that it is movable a fixed distance in the fluid flowing direction and in the radial direction. Also an annular sheet 71 is put in the holding groove 70 formed by the projection 66b and the single-groove 61. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S6118157-A (JP)
Title: Semiconductor device
Inventor: SAWARA KUNIZOU
IPC: H01L23/12
Filed: 1984-07-04
Abstract: PURPOSE:To effectively transfer the heat generated by chip to a sealing substrate and prevent generation of cracks by exfoliation by providing a metal layer for bonding at the bonding surface between a loading substrate and a sealing substrate and bonding them with a metal layer for bonding which has a melting point lower than the solder electrode and has small difference of thermal expansion coefficient for said substrate. CONSTITUTION:The metal layer for bonding 5E, 5D are sequentially laminated at the bonding surface of a loading substrate 4. Thereafter, a plurality of chips 7 are loaded to a loading substrate 4 through a solder electrode 6. The metal layers 5A, 5B for bonding are sequentially laminated at the bonding surface of the sealing substrate 1. Thereafter, a lead forming member 3A is formed to the periphery of sealing substrate 1 through an insulating bonding agent 2. The metal layers 5A, 5E for bonding are formed, for example, with a high melting point metal layer such as titanium, tungsten, etc. The metal layers 5B, 5D for bonding are formed, for example, with aluminum layer. The loading substrate 4 is arranged on the sealing substrate 1 through a metal layer 5C for bonding. The metal layer 5C for bonding is formed with an alloy layer of aluminum and tin having a lower melting point than the solder electrode 6 and the metal layer 5C for bonding can be deposited to the metal layers 5B, 5D for bonding with the scribe technique by ultrasonic wave vibration.
Patent JP-H01307119-A (JP)
Title: Electronic apparatus
Inventor: SHIMA TAKEAKI
IPC: H05K5/03
Filed: 1988-06-06
Abstract: PURPOSE:To improve external appearance and operating property of an electronic apparatus, by operating a switch with a cover member covering a hole for operation formed in a armor case. CONSTITUTION:There is provided a cover member 4 covering a hole 1c for operation formed in an armor case 1, and a switch 2 is operated by the cover member 4. The external appearance of an electronic apparatus is improved by covering the hole 1c for operation with the cover member 4. The fouling around the hole can also be avoided because the switch 2 is operated by the cover member 4. Further, the storage of an operating jig can be made unnecessary by mounting the cover member to the armor case. Thus, the external appearance and the operating property can be improved.
Patent JP-S62296071-A (JP)
Inventor: SUGIZAKI KENICHI
IPC: E04H15/64
Filed: 1986-06-14
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-H04361415-A (JP)
Title: Power variable attenuator
Inventor: OGAWA SATOSHI
IPC: H03H11/24
Filed: 1991-06-10
Abstract: PURPOSE:To attenuate power continuously without production of heat. CONSTITUTION:A distribution circuit bisects an input power to be outputted as power signals P1, P2. A variable phase shift circuit 2 gives a phase shift designated by a control signal S to the power P2. A synthesis circuit 3 synthesizes an output power P3 of the variable phase shift circuit 2 and the bisected other power P2 in terms of vector and the result is outputted as an output power Po.
Patent JP-S6028612-A (JP)
Title: High-aperture ratio telephoto lens
Inventor: HAYASHI KIYOSHI
IPC: G02B13/02
Filed: 1983-07-27
Abstract: PURPOSE:To attain a lens for 35mm. camera which has f=300-400mm., F2-2.8, and less variation of aberrations without a floating mechanism, by satisfying prescribed conditions in a focusing telephoto lens which consits of three groups, namely, positive, negative, and positive groups and is focused by movement of the thrid negative group. CONSTITUTION:The telephoto lens consists of the first convergent lens group G1, a divergent lens group G2, and the second convergent lens group G3 which are arranged in order from the object side, and the first convergent lens group G1 and the divergent lens group G2 form an afocal system, and the divergent lens group G2 is moved to the image side to focus the telephoto lens from an object in the infinity to an object at a short distance. Condition 0.01<d4/f1<0.09 is satisfied when the second air interval of the first convergent lens group is denoted as d4 and the focal length of this group is denoted as f1, and it is desirable that the negative lens component in the object side is an achromatic component with respect to the divergent lens group.
Patent JP-H04362514-A (JP)
Title: Magnetic recording medium
Inventor: KUREMATSU MICHIO
IPC: G11B5/73
Filed: 1991-06-10
Abstract: PURPOSE:To provide a magnetic tape having the high surface characteristic of a back coat layer, high output and excellent durability. CONSTITUTION:This magnetic recording medium is constituted by forming a magnetic layer 1 on one surface of a nonmagnetic base and the back coat layer 4 on the other surface, respectively. An intermediate layer 3 contg. planar inorg. powder and acicular magnetic powder is constituted either or both of between the nonmagnetic base 2 and the magnetic layer of such recording medium or between the base and the back coat layer 4.
Patent JP-S61294760-A (JP)
Title: Manufacture of post for lead-acid battery
Inventor: HIRONAKA KENSUKE
IPC: H01M50/571
Filed: 1985-06-24
Abstract: PURPOSE:To prevent local corrosion in a contact between a post and a cover, and prevent breakage of the cover caused by corrosion by forming a dense lead sulfate film on a casting post by immersing in sulfuric acid. CONSTITUTION:A cast post is immersed in a sp.gr. 1.460 sulfuric acid solution at 60 deg.C to form a lead sulfate film on its surface. The whole surface of the post is covered with the dense lead sulfate film to prevent local corrosion. When a lead-acid battery is used, the dense lead sulfate film is gradually converted into a thick lead dioxide film and active points for local corrosion are removed. When electrolyte penetrates into the post, consumption of sulfuric acid ions on the surface of the post is reduced by the lead sulfate layer on the post. This prevents formation of a concentration cell caused by sulfuric acid ions.
Patent JP-S62296025-A (JP)
Inventor: KAWATANI SHIRO
IPC: E04B1/30
Filed: 1986-06-13
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。