baber/WOPTO huggingface dataset:
Patent JP-H10162380-A (JP)
Title: Recording and/or reproducing device for disk-shaped optical recording medium
Inventor: SUGIKI MIKIO
IPC: G11B7/09
Filed: 1996-11-27
Abstract: PROBLEM TO BE SOLVED: To provide a recording and/or reproducing device which can record and reproduce a recording medium of a land/groove recording type highly accurately. SOLUTION: A groove and a land being adjacent on a recording medium 102 are irradiated with two laser beams. Respective light rays reflected on the recording medium 102 are respectively image-formed on two pairs of quadaripartite photo-sensor. A photo-electric conversion output of each photo- sensor pattern al-di, a2-d2 are assumed to A1-D1, A2-D2. A focus error signal FE is obtained from the sum (FE=FE1+FE2) of a signal FE1=A1+C1-B1-D1 from a first reflected light and a signal FE2=A2+C2-B2-D2 from a second reflected light. A tracking error signal TE is obtained from a difference (TE= TE1-TE2) between a push-pull signal TE1=A1+B1-C1-D1 from a first reflected light and a push-pull signal TE2=A2+B2-C2-D2 from a second reflected light.
Patent JP-H08171488-A (JP)
Title: Data address control circuit
Inventor: ASAKAWA MUNEHITO
IPC: G06F9/22
Filed: 1994-12-20
Abstract: PURPOSE: To eliminate the increase of the number of execution clocks required for generation time even in the case where a data take-out address at the time of data transfer to a storage area is generated from the transfer length. CONSTITUTION: From the output of a register 12 for receiving the transfer length, the address of a register group 20 is generated in a register group address generation circuit 13, also the take-out address of the second word of the register group is generated in a preceding register group address generation circuit 14 and selection is performed by a microinstruction and an execution constant in a register group address selection circuit 15.
Patent JP-H09162626-A (JP)
Title: Plane array antenna and monopulse radar equipment
Inventor: SASAKI KUNIHIKO
IPC: G01S13/44
Filed: 1995-12-05
Abstract: PROBLEM TO BE SOLVED: To attain the mass production of compact array antennas of plural systems consisting of serial and parallel feeder lines by arranging the antenna element strings formed on the serial feeder lines in such a way where these element strings interdigitate each other and almost at equal spaces. SOLUTION: A receiving antenna (plane antenna) 10 contains a dielectric substrate 22 that is placed on the surface of the antenna 10 to radiate the radio waves and a dielectric substrate 27 that is placed on the back side of the antenna 10. The antenna elements 24 are arranged in a matrix shape on the surface of the substrate 22, and the serial feeder lines 26 which connect in series the elements 24 in every string are provided on the back side of the substrate 22 together with a pair of parallel feeder lines 26a and 26b which perform the parallel feeding to the elements 24 in every string via the lines 26. Then such antennas 10 are arranged on the same plane, so that the whole or some of antenna element strings formed by the lines 26 interdigitate each other and almost at equal spaces.
Patent JP-2001133325-A (JP)
Title: Photometric device
Inventor: ODA HAJIME
IPC: H03K17/78
Filed: 1999-11-08
Abstract: PROBLEM TO BE SOLVED: To reduce the unnecessary current leaked from a photo sensor in no use to a current-voltage converting circuit through a semiconductor switch laid in OFF state. SOLUTION: When a mode switch SWm is laid in OFF state, semiconductor analog switches SW51 and SW2 are ON, and semiconductor analog switches SW1 and SW52 are OFF. The photoelectric current outputted from the photoelectric current output terminal B of a photo sensor SPD1 is inputted to a current- voltage converting circuit 110 through the semiconductor analog switch SW51 in ON state. At this time, the photocurrent generated from a photo sensor SPD2 is divided and carried to the switch SW2 and the switch SW52. However, since the switch SW2 is ON and the switch SW52 is OFF, most of the photoelectric current generated from the photo sensor SPD2 is carried to the ground through the switch SW2 due to the difference of the ON resistance and OFF resistance thereof.
Patent JP-H01156641-A (JP)
Title: Inspecting device for foreign matter on surface for manufacturing semiconductor
Inventor: ISHII HIROYUKI
IPC: G01N21/956
Filed: 1987-12-15
Abstract: PURPOSE:To reduce a difference of a detection degree caused by a size and a shape of a foreign matter and a variation of detection sensitivity caused by uneven thickness by varying a focal position of an irradiation light source. CONSTITUTION:A laser light 2 which is reduced by a condensing lens 1 is radiated to the surface of an object to be inspected 4 on a state 3. The title device is provided with a moving mechanism 15 for applying a feed of a prescribed pitch by a pulse motor, etc., or vibrating the stage 3 in the vertical direction at a sufficiently higher speed than a scanning speed by a DC motor, etc. Also, instead of moving up and down the stage 3, it is also allowable to move up and down the lens. In this state, while varying a focal position of a laser light source 13 within a range of the focal position displacement position, the maximum value of a scattered light 6 caused by a foreign matter is detected and stored in a storage mechanism 16. In such a way, a difference of detection sensitivity caused by a size and a shape of the foreign matter can be reduced, and a variation of detection sensitivity caused by unevenness of an inspection object and uneven thickness as a whole can be reduced.
Patent JP-H06159644-A (JP)
Title: Heat treating method for oil swelling resin
Inventor: TSUZUKI ATSUYUKI
IPC: F23G7/12
Filed: 1992-11-26
Abstract: PURPOSE:To efficiently burn resin waste by mixing at least one type of oil swelling resin with oil, lifting to stand it to swell it, and then burning it. CONSTITUTION:At least one type of oil swelling resins such as polypropylene, ethylene propylene rubber, butyl rubber, styrene-butadiene rubber, natural rubber, silicone rubber, etc., is mixed with oil., left to stand to be swelled, and then burnt. As the oil, waste oil such as engine oil, transmission oil, etc., is desirably reused. When the resin is mixed with the oil to be swelled, it is effective to accelerate swelling speed by heating. As heating means, an oil bath using solar energy, heat inertia of an incinerator can be used. Thus, the resin can be effectively burnt.
Patent JP-2000147122-A (JP)
Title: Light-wave distance meter
Inventor: SHIONOYA TAKASHI
IPC: G01S7/48
Filed: 1998-11-09
Abstract: PROBLEM TO BE SOLVED: To make reliably and accurately measurable distance by a planar-type galvano mirror as a light path changeover means. SOLUTION: When a light path is changed by a galvano mirror 3 so that light deflected by the planar-type galvano mirror 3 enters an optical fiber 5, the light passes only through a reference light path to a beam splitter 11, and a reference pulse beam enters a photo detector 13. On the other hand, when the light path is changed so that the light deflected by the planar-type galvano mirror 3 enters optical fiber 6, the light passes merely through a range-finding optical path. A distance-measuring means 14 obtains distance to an object to be measured according to the reception time deference between a reference pulse light signal and a reception pulse light signal passing through the range- finding light path.  The galvano mirror 3 is used as a light path changeover means, thus eliminating a malfunction of a light path changeover shutter, extremely speedily changing the light path, quickly finding range for a number of times, and hence outputting the average value as a range-finding value.
Patent JP-H02163161-A (JP)
Title: Molded polyurethane product excellent in water absorption resistance
Inventor: TACHIBANA SHINTARO
IPC: C08L75/00
Filed: 1988-12-15
Abstract: PURPOSE:To obtain a molded polyurethane product, having a density within a specific range, ultralow dimensional change and volume change in moisture absorption, containing tris(beta-chloropropyl) phosphate and suitable for especially producing large-sized molded products of a complicated shape. CONSTITUTION:A molded polyurethane product, obtained by blending (A) a polyisocyanate (e.g. diphenylmethane diisocyanate) with (B) a polyol (e.g. polyether polyol), (C) a crosslinking agent (e.g. ethylene glycol) in an amount of 5-40% based on the weight of the component (B), (D) a catalyst (e.g. triethylenediamine) in an amount of 0.01-5% based on the total amount of the components (B) and (C), (E) tris(beta-chloropropyl) phosphate in an amount of 0.5-5%. preferably 1-3% based on the total weight of the components (A), (B) and (C) and optionally a foaming agent and reacting the resultant blend in a metallic mold and having 0.5-1.2g/cm<3> density with excellent water absorption resistance.
Patent JP-H08152669-A (JP)
Title: Back cover mechanism for camera
Inventor: NISHIO ETSURO
IPC: G03B17/28
Filed: 1994-11-28
Abstract: PURPOSE: To install a film pressing member by simple constitution and to prevent the loading operability of a film from being lowered even in the case of a DIL system camera constituted so that the opening angle of a back cover is small. CONSTITUTION: The back cover mechanism 1A of the camera is provided with the back cover 2 installed so that it can be opened and closed with respect to a camera main body, the film pressing member 4 pressing the film to a spool, an opening and closing lock mechanism 5 and a displacement means 7 displacing the pressing member 4 to a first posture that the film is pressed to the spool and a second posture that the film is retreated to the inside surface side of the cover 2. The displacement means 7 is provided with a driving lever 71 and an arm 75 interlocking with the movement of the key spatula of the lock mechanism 5. Then, when the cover 2 is opened, the second posture is attained by attracting the pressing member 4 by a permanent magnet 77 fitted to the tip of the arm 75.  When the cover 2 is closed, the second posture is attained by releasing the attraction of the pressing member 4.
Patent JP-H05161391-A (JP)
Title: Drive circuit of motor
Inventor: SUMII TAKASHI
IPC: H02P7/29
Filed: 1991-12-02
Abstract: PURPOSE:To perform en efficient drive by driving a pulse motor with a small current at the time of low-speed rotation and which a large current at the time of high-speed operation through making the output of a reference current value generator to be inputted to a comparator lower at the time of the low-speed rotation and higher at the time of the high-speed rotation according to the number of revolutions of the motor in the constant-current drive system of the pulse motor. CONSTITUTION:An apparatus is constituted by a current sensor 1 for converting a current flowing through a motor 6 into a voltage and outputting the voltage, a reference current value generator 2 for converting a reference current, which is set low at the time of low-speed rotation and high at the time of high-speed rotation according to the number of revolutions of the motor, into a voltage and outputting the voltage; a comparator 3 for comparing the output of the current sensor 1 and that of the reference current value generator 2, a controller 4 for outputting a drive pulse to be turned ON and OFF according to the output signal of the comparator 3, and a driver 5 for driving the motor 6 by the drive pulse outputted from the controller 4. Thus, an appropriate torque corresponding to the number of revolutions can be obtained and the motor can be driven to rotation efficiently.
Patent JP-2001139310-A (JP)
Title: High concentration ozone gas-generating device and ozone gas generating quantity control method therefor
Inventor: NONAKA HIDEHIKO
IPC: C01B13/10
Filed: 1999-11-09
Abstract: PROBLEM TO BE SOLVED: To safely and efficiently take out high concentration ozone gas from liquefied ozone by locally heating the liquefied ozone by laser beam. SOLUTION: This ozone generating device is composed of a refrigerator 11 for cooling ozone and an ozone chamber 12 of a vessel tube for storing the liquefied ozone, and has a structure that the bottom part of the ozone chamber 12 is brought into contact with a cold head 13 of the refrigerator 11 to be cooled to a prescribed temperature, and a heat insulating material is inserted into a gap between the ozone chamber 12 and an outside vessel 14 to prevent the inflow of heat by evacuating. A view port 30 and a reflection mirror 31 composed of a prism or the like are attached to the upper part of the ozone chamber 12 and a laser beam irradiation device 32 is mounted outside the view port 13. The liquid surface of the liquefied ozone 24 is irradiated through the reflection mirror 31 from the view port 30 with the laser beam emitted from the lamer beam irradiation device 32.
Patent JP-H03178065-A (JP)
Title: Magnetic head position control system for magneto-optical driving device
Inventor: HORINOUCHI TAKU
IPC: G11B7/09
Filed: 1989-12-07
Abstract: PURPOSE:To obtain a magnetic head position control system, which can execute high-speed overwrite, by operating an actuator so that the quantity of light to a photodetector can be fixed, and controlling the position of a magnetic head so that an interval between the magnetic head and a magneto-optical disk can be kept constant. CONSTITUTION:At the side end of a magnetic head 1, a photodetector 4 composed of a two-split photodetector, etc., is fitted integrally with the magnetic head 1 and constituted so as to be vertically moved together with the magnetic head 1. When controlling an actuator 2 so as to move the magnetic head 1 integrated with the photodetector so that a light beam emitted from a light emission source 5 can be reflected on the surface of a magneto-optical disk 3 and incident to the photodetector 4 and the output of the two-split photodetector constituting the photodetector 4 can be 0, the interval between the disk 3 and the magnetic head 1 is kept constant. Thus, since the number of constituting parts is comparatively small, the light magnetic head position control system, which can execute high-speed over-write, can be obtained.
Patent JP-H03179019-A (JP)
Title: Sealing resin composition and semiconductor device
Inventor: NAGATA TSUTOMU
IPC: C08G59/00
Filed: 1989-12-07
Abstract: PURPOSE:To obtain a sealing resin composition improved in humidity resistance and soldering-heat resistance by mixing a specified epoxy resin with a polyfunctional phenol resin and a silica powder. CONSTITUTION:A sealing resin composition is obtained by mixing a composition of an epoxy resin of formula I with a polyfunctional phenol resin of formula II or III (wherein R is CmH2m+1; and m and n are each 0 or >=1) with 50-90wt.% silica powder of a mean particle diameter <=30mum.
Patent JP-H02163854-A (JP)
Title: Check system for transfer of message
Inventor: SAWADA HACHIRO
IPC: G06F13/00
Filed: 1988-12-16
Abstract: PURPOSE:To check the transfer of messages including an abnormality process system of the bus transfer by adding a bus test service board to a bus. CONSTITUTION:At packet retransmission, a bus test service board 6 produces no bus abnormality even though it detects the presence of a message transfer check packet to a master board 2 via bus service board 1. Therefore the board 2 received the message transfer check packet from the board 1 adds the data to a message transfer packet to show the normal packet reception. The transfer of messages are carried out to a board of a low bus priority degree from a board of a high bus priority degree. However, the transfer of messages are stopped in the case a message is transferred to a non-message transfer board 4 which supports no transfer of messages. Thus the transfer of messages is checked.
Patent JP-H01160619-A (JP)
Title: Method for manufacturing vessel
Inventor: NAMIKI TADAO
IPC: B29C41/08
Filed: 1987-12-18
Abstract: PURPOSE:To prevent the flaw of a vessel from occurring in accompanyment with removing of injecting molds and reproduce it repeatedly as a molding material by a process that a coating material is cured over the injection mold with a specified melting point and the injection mold is melted and removed away by heating it up to the temperature above the melting point. CONSTITUTION:A coating material layer 3 is formed with an application of a coating material on the outer surface of a block-shaped injection molding 1 made up of a thermal melting injection material and further a reinforcing layer 5 is provided thereupon. The injecting mold 1 has a mold releasing ability and a chemical resistance at a melting point of approximate 50-80 deg.C. The coating material is cured below the melting point of a mold injecting material so as not to prevent an excellent vessel manufacturing in melting or deformation before the coating material layer 3 applied on the injecting mold 1 cures completely and then a barrier layer, fiber reinforcement layer 5 and cover coat layer are formed one after another. Furthermore, the injection mold 1 is melted by heating it up to the temperature above the melting point so as to remove it out of the inner portion of a molded vessel, so that the strength of the obtained vessel is raised and to leakage of a fuel or the like to be changed in the vessel is prevented.
Patent JP-H11150986-A (JP)
Title: Control equipment of parallel multiplex power inverter
Inventor: OSAWA HIROSHI
IPC: H02P27/06
Filed: 1997-11-20
Abstract: PROBLEM TO BE SOLVED: To realize cost reduction by making it unnecessary to develop or design a special control system when the number of multiplex is changed. SOLUTION: When a three-phase induction motor 5 is driven and controlled by using a plurality (two in figure) of inverters 41, 42 which are connected in parallel, output currents of each of the inverters 41, 42 are divided into a first current component parallel with the motor magnetic flux, a second current component perpendicular to the first current component, and a third current component as the zero-phase component, and each of the current components is independently fed back and controlled by adjusting devices 11, 12, 13. As a result, controls to the inverters 41, 42 are made identical, and a circulation current flowing between them is restrained.
Patent JP-H10160283-A (JP)
Title: Absorption heat pump device
Inventor: ABE TADAO
IPC: F28F1/32
Filed: 1996-11-29
Abstract: PROBLEM TO BE SOLVED: To enhance a vaporization rate and restrict an irregularity of discharge amount of a refrigerant, wherein a plurality of refrigerant discharge nozzles which discharge the liquefied refrigerant to an inner wall of a heat transfer pipe 18 are mounted on the heat transfer pipe 18 at a position a predetermined distance shifted away downwardly from the upper end of the heat transfer pipe 18. SOLUTION: A plurality of refrigerant discharge nozzles 53 are mounted on a heat transfer pipe 18 at a position a predetermined distance shifted away downwardly from the upper end of the heat transfer pipe 18. A refrigerant tank 54 has a lower end thereof positioned above the refrigerant discharge nozzles 53. A liquefied refrigerant A stored in the refrigerant tank 54 has the liquid level thereof positioned constantly above the refrigerant discharge nozzles 53. Accordingly, it becomes possible to prevent the refrigerant A which is not vaporized yet from being fed to an absorber 5 thus increasing an amount of vaporized refrigerant A in the heat transfer pipe 18. Furthermore, the feed pressure of the refrigerant A can be held approximately constant based on the difference of the head which corresponds to the difference in height between the refrigerant discharge nozzles 53 and the refrigerant tank 54 so that the refrigerant discharge amount of respective discharge nozzles 53 can be made uniform.
Patent JP-H10156374-A (JP)
Title: Aerobic treatment tank and its assembly method
Inventor: NINOMIYA TAKASHI
IPC: C02F3/06
Filed: 1996-11-29
Abstract: PROBLEM TO BE SOLVED: To provide an aerobic treatment tank which allows simple positioning of air diffusers to the prescribed position in the treating tank of a system to supply air from the air diffusers to contact materials fixed with aerobic microorganisms as biological films and its assembly method. SOLUTION: The aerobic treatment tank T is internally provided with guide rails 6 for positioning the air diffusers and guiding mechanisms sections 2 formed with perpendicular guiding sections 2a extending upward along the extension lines of these guide rails 6. When the air diffusers divided to two systems are positioned in the aerobic treatment tank T by utilizing such guiding mechanism sections 2, the one air diffuser of the two systems is inserted into the arbitrary position of the guiding mechanism sections 2 and is hung and positioned to the guide rails 6 in the state of bringing the air diffuser into contact with either of the right or left perpendicular guiding sections 2a. The other air diffuser is then positioned by the procedures similar to the procedures described above.
Patent JP-2001137220-A (JP)
Title: Medical imaging apparatus
Inventor: SHIBANUMA HIROYUKI
IPC: A61B6/00
Filed: 1999-11-10
Abstract: PROBLEM TO BE SOLVED: To increase degrees of freedom for the design of an analog signal processing board and prevent application of thermal stresses to circuit elements. SOLUTION: The analog signal processing board 102 and a digital signal processing board 103 are mounted on the surface of a motherboard 101 and power is supplied thereto from a switching power supply. A regulator board 106 with a power switching noise reducing circuit mounted thereon is mounted on the back of the motherboard and the power from the switching power supply is supplied to the analog signal processing board 102 via the regulator board 106. Thus, since the analog signal processing board does not have an LC filter and a voltage regulator, all of spaces on the board 102 can be used for a proper analog circuit, and the design of the board can be optimized. Also, thermal stresses to circuit parts on the board can be avoided.
Patent JP-H06170523-A (JP)
Title: Reflow device
Inventor: INOUE MASAFUMI
IPC: H05K3/34
Filed: 1992-11-30
Abstract: PURPOSE:To provide a reflow device liable to realize an ideal temp. profile in a main box. CONSTITUTION:In the reflow device whose main box 1 is divided into a lower box 1a and a cover box 1b arranged so as to be freely opened/closed at the upper part of the lower box 1a a fan 10 and a heater unit 11 are housed in the inner part of the cover box 1b. Then the heated unit 11 is constituted of a frame 12 and a heater 16 fitted to the frame 12 and is fitted to the inner part of the cover box 1b so as to be freely loaded/unloaded. The cover box 1b is opened and the heater unit 11 is exchanged, so that the necessary ideal temp. profile TP can be obtd.
Patent JP-H09140078-A (JP)
Title: Manufacture of rotor with cylindrical permanent magnet in dynamo-electric machine, and the rotor
Inventor: TOKIWA NOBUYUKI
IPC: H02K15/03
Filed: 1995-11-14
Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method of a rotor with a cylindrical permanent magnet wherein the concentrations of stresses on the bonding agent present between its rotor shaft and the cylindrical permanent magnet are reduced by the extrusions of the bonding agent to both the axial end portions of the magnet. SOLUTION: In the manufacture of this rotor, preparing both a cylindrical permanent magnet 2 and a rotor shaft 1 with a longer axial length than the cylindrical magnet 2 and applying a bonding agent 3 to the outer periphery of the rotor shaft 1, both are engaged with each other to extrude the bonding agent 3 from the clearance between the rotor shaft 1 and cylindrical permanent magnet 2 to both the axial end portions of the magnet 2. Then, after clamping both the axial ends of the magnet 2 by jigs 5, heating the bonding agent 3 to be hardened, it is molded to round both its extruded end surfaces. Thereby, the concentration of stresses on the bonding agent 3 are reduced during the rotation of this rotor, improving the fatigue strength of the bonding agent 3.