baber/WOPTO huggingface dataset:
Patent JP-H04360884-A (JP)
Title: Method for manufacturing homoserine lactone
Inventor: MIHIYAERU GEE HOFUMAN
IPC: B01J31/24
Filed: 1992-02-06
Abstract: alpha -Amino- gamma -butyrolactones (homoserine lactones) are a central structural element in many biologically active compounds. The known syntheses for the preparation of optically active homoserine lactones from D- or L-methionine and D- or L-aspartic acid derivatives have disadvantages. According to the invention, homoserine lactones I and their salts can be prepared enantioselectively if aldehydes II are catalytically hydrogenated 
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 where R in the formulae denotes hydrogen, alkyl, alkenyl, alkynyl, it being possible for the above three radicals to have hetero atoms in the chain, alkylcarbonyl, alkoxycarbonyl, alkylsulphonyl, benzyl, benzyloxycarbonyl, aryloxycarbonyl or arylsulphonyl, it being possible for the four last-mentioned radicals to be optionally substituted in the aryl moiety.
Patent JP-H10222998-A (JP)
Title: Method and device for testing memory
Inventor: SATO SHINICHIRO
IPC: G01R31/28
Filed: 1997-02-04
Abstract: PROBLEM TO BE SOLVED: To provide a memory-testing device that can efficiently and quickly analyze the problems of a wafer process. SOLUTION: A memory-testing device has a fault analysis memory 5, an operation-processing device 11 for performing a fail bit map display processing for each physical conversion and element, a display device 12 that can display the position of a faulty cell for each element by a fail bit map, and a storage 13 for storing the process details of the operation-processing device 11. Then, a semiconductor memory is tested, the position of a faulty cell after testing is stored up in the memory 5, and at the same time a fail bit map for each element is displayed for each element of, each block of memory, each bit line, each word line, and other faults from data being stored up in the fault analysis memory 5 based on master data information used by the process of the wafer process.
Patent JP-H06236956-A (JP)
Title: Semiconductor device and its manufacture
Inventor: TADA NOBUHIKO
IPC: H01L23/12
Filed: 1993-02-09
Abstract: PURPOSE:To permit the lead frame of a semiconductor device to maintain high reliability and strength without damages, deformation and interference to other components and facilitate the handling of the lead frame. CONSTITUTION:A semiconductor chip 2 is bonded to a die pad 3 and the leading edge of a lead frame 4 extended to the terminal of the semiconductor chip 2 is directly connected to the terminal through a gold bump 7. A protruding part 4a is formed in a resin mold part on the way to the terminal of the lead frame 4 and the lead frame 4 at the external side of the protruding part 4a and frame material are cut leaving the bent part at the external side of the protruding part 4a. Thus, the exposing part 4b and the bent part 4c are formed. The semiconductor device 1 is mounted on a board using the exposed part 4b as a connecting terminal by a COB system.
Patent JP-2000223285-A (JP)
Title: Phase control light modulation device
Inventor: TATEZAWA ICHIRO
IPC: G05F1/445
Filed: 1999-01-29
Abstract: PROBLEM TO BE SOLVED: To miniaturize a current detection circuit and a protection circuit for overcurrent protection by allowing a rush current to flow only in one direction until a filament of an incandescent lamp is sufficiently heated since it is turned on and the rush current does not flow any longer. SOLUTION: This device is so structured that a phase control operation is performed to a semiconductor switch element with a control signal synchronized with an A.C. power source from the outside, so that the phase of the power applied to an incandescent lamp load L from the A.C. power source E is controlled, and thus, light modulation is performed.  In this case, the phase control light modulation device is provided with a protection circuit (d) for carrying out a protective operation so as to prevent, by the help of a current detection circuit (c), the switch element (a) from being broken by a lamp rush current at the startup of lighting, and the power provided by rectifying the half-waves of the A.C. power source E is applied to the incandescent lamp load L and the switch element (a) for a certain period at the startup of the device by the use of a timer circuit T1, a relay RY1 and a rectifier diode D1.
Patent JP-S62182553-A (JP)
Title: Manufacture of solar heat absorbing body
Inventor: OHASHI KIYOSHI
IPC: F24J2/48
Filed: 1986-02-03
Abstract: PURPOSE:To manufacture a solar heat absorbing body, prominent in heat collecting characteristics, inexpensively and simply by a method wherein an iron plating is applied on the surface of a base material consisting of a metal having the principal constituent of copper or stainless steel, thereafter, a selective absorption film is formed on the surface of the iron plating by the electrolytic oxidization in acid solution employing said base material for an anode. CONSTITUTION:A plating solution for applying iron plating on the surface of the base material is preferable to be the solution having the principal constituent of ferrous sulfate, for example. Thereafter, electrolytic oxidization is applied on the base material applied with the iron plating by utilizing it as an anode to form a selective absorption film or iron oxide having the principal constituent of triiron tetraoxide or the composite of a metal element constituting the iron oxide and electrolytic copper. Electrolyte, employed in this case, is preferable to be the independent solution and mixed solution of acid oxidizing agent (the dichromate or permanganate or the like of potassium dichromate or the like for example) having the complex ion of a metal as an anion and a metal having an ionization tendency larger than iron. The independent solution and the mixed solution of the acid oxidizing agent (nitrate, nitrite, salt peroxide or the like, for example) having a metal having an ionization tendency larger than iron as an anion may also be employed for this purpose.
Patent JP-H06215505-A (JP)
Title: Stepping motor controller
Inventor: MIURA TORU
IPC: G11B19/20
Filed: 1993-01-14
Abstract: PURPOSE:To reduce power consumption by generating fist pulses with a prescribed time width by a monostable multivibrator responding to an external step pulse and generating second pulses with a narrower pulse width responding to the first pulses and using the second pulses as internal step pulses. CONSTITUTION:The monostable multivibrator MMV 19 responds to an external step pulse transmitted to a line 15 from a host device 7 and generates pulses having a half time width. An edge detection circuit 21 in a pulse generating circuit 20 outputs trigger pulses which are respectively synchronized to the leading and the trailing edges of output pulses of the MMV 19 and internal stepping pulses with a narrower time width are generated by an MMV 22. These pulses are decided while having no relationship to the output of a clock pulse generator 29. Thus, even if the power supply of the generator 29 is turned off while a floppy disk device is in its sleeve condition, no adverse influence caused by unstable operations of the generator 29 during its starting is effected and power consumption is reduced.
Patent JP-S60167512-A (JP)
Title: Plasma connection type semiconductor device
Inventor: KUSUDA YUKIHISA
IPC: H03H11/26
Filed: 1984-02-10
Abstract: PURPOSE:To reduce the number of transfer clocks down to half and at the same time to prevent the deterioration of the working margin of the titled semiconductor device, by connecting additional emitters to original emitters via resistances. CONSTITUTION:Additional emitters 60-64 are connected to emitters 21-25 through resistances 71-75 (resistance value RE') respectively. The transfer clocks are applied to these emitters and resistances every three units. Now conductance transistors CDT3 (23, 33, 43 and 53) are turned on by a transfer clock phi3. Under such conditions, the voltage of a high level is applied to a clock phi1. Then the emitter voltages of elements CDT4 (24, 34, 44 and 54) which are turned on next rise up. In this case, the positive holes are injected from the emitter 63. Therefore the conduction degree modulating area of the CDT3 is shifted and the conventional RC1 increases. As a result, the working margin can be improved as conventional.
Patent JP-H05187530-A (JP)
Title: Automobile automatic transmission device
Inventor: YOSHIDA TOSHIYASU
IPC: F16H61/24
Filed: 1992-01-10
Abstract: PURPOSE:To provide an automobile automatic transmission device which allows a select lever to be smoothly operated from a P range without generating noises. CONSTITUTION:When an R range is shifted to a P range, a release completion point TF which is the termination of an oil pressure generation range HR for R oil pressure is spaced from the starting point of a parking lock range so that the oil pressure generation range HR will not overlap with the parking lock range HL. With this constitution, reverse direction torques no longer cause, elastic deformation in a power train or a suspension system during parking locking, thus preventing a parking lock mechanism from being forcibly engaged.
Patent JP-H10221673-A (JP)
Title: Projection type color image display device
Inventor: URABE TETSUO
IPC: G02F1/1335
Filed: 1997-02-04
Abstract: PROBLEM TO BE SOLVED: To provide a projection type color image display device capable of performing color separation high in purity, hardly causing discoloration and simple in constitution. SOLUTION: A roughly parallel white luminous flux is made incident on a color filter 10 for color separation into three-primary colors of red, green and blue. Color separated parallel luminous flux receives conversion of luminous diameter with a magnification being f2 /f1 by a relay optical system 11 to be made incident on a PBS(polarizing beam splitter) 13. The splitter 13 transmits p-polarized light component to make it incident on a liquid crystal display element 12. Images of respective filter elements of R, G, B in the color filter 10 are formed on respective corresponding pixel electrodes of the liquid crystal element 12 by being reduced and reflected on the electrodes. P-polarized components made incident on the liquid crystal elements 12 receive modulations (changing of polarization direction) according to image signal voltages impressed on the respective pixel electrodes.  S-polarized light components generated in such a manner are reflected with the PBS 13 to be magnifiedly projected on a screen 15 by a projecting lens 14.
Patent JP-S61184397-A (JP)
Title: Tube cleaning device
Inventor: FUJIMOTO MASAKAZU
IPC: F28G15/02
Filed: 1985-02-08
Abstract: PURPOSE:To keep clean an inside part of a tube by a method wherein strainers are arranged in inlet passage and outlet passage between the changing-over valve and the heat exchanger, one of the strainers may perform a straining action against a flow directed toward the heat exchanger and act as an one-way strainer permitting a free passage of a counterflow for the heat exchanger. CONSTITUTION:When a changing-over valve 39 is in a solid line position and fluid is supplied from a supplying passage 47, foreign material or object is filtered with a filter device 40 in the inlet passage 42 and the fluid becomes clean, enters the eater chamber 4 and then enters a heat exchanger 1. The fluid after its heat exchanging operation is flowed from the water chamber 4' to one-way strainer 41 through the outlet passage 43. A free passage of the flow is allowed, so that the fluid is discharged from the discharging passage 48. Then, when the changing-over valve 39 is changed over to make a flow passage converted, an opening or closing lid 46 is closed and the one-way strainer 41 may act as a strainer and almost all of the foreign materials or objects are prohibited, thereby the fluid entered the heat exchanger 1 enters the filter device 40, pushes back the foreign materials prohibited at the changing-over valve 39 of the filler device 40 and then discharge them through the changing-over valve 39.
Patent JP-S57135485-A (JP)
Title: Automatic winding device for cassette tape
Inventor: KATOU TOSHISADA
IPC: G11B23/113
Filed: 1981-02-17
Abstract: PURPOSE:To extract a pair of tape-wound hubs continuously and sutomatically by installing one pair of tape-wound hubs in a storage box successively by vertically moving a discoid turret plate mounting one pair of tape-wound hubs. CONSTITUTION:A pair of hubs 3 and 3a are mounted on a turret plate 1. The turret plate 1 rotates around a driving shaft 18a to move to the position where a tape from a supply rail 13 is fixed to the huh and to the position where the tape 12 is wound around the take-up hub. In the state of one couple of hubs wound with the tapes, the turret plate 1 moves onto the driving shaft 18 and a hub shaft 2 is extracted from the hubs 3 and 3a, thereby ejecting one couple of tape-wound hubs to a hub guide plate 19.
Patent JP-H06216923-A (JP)
Title: Communication system
Inventor: IIJIMA KEN
IPC: G06F13/36
Filed: 1993-01-14
Abstract: PURPOSE:To provide the communication system which constitutes a bus type dual loop communication system where a master station can successively access slave stations in the opposite direction. CONSTITUTION:A master station 1 and plural slave stations 3A, 3B, 3C, and 3D are connected to a bus type dual loop structure by a transmission line, and the master station 1 successively accesses slave stations by a primary communication line 11 when the communication line is normal. Slave stations 3A, 3B, 3C, and 3D respond to the master station 1 by the accessed communication line 11; and if the abnormality of the communication line occurs, the master station successively accesses a prescribed slave station by the primary communication line 11. When the response from the prescribed slave station is not returned within a prescribed time after transmission of transmission data, the master station switches the communication line to a secondary communication line 12 and accesses the prescribed slave station from the other end station side of the loop communication line, and the master station 1 switches the communication line to the primary communication line regardless of the response from this station is returned within the prescribed time after transmission of transmission data or not. The master station repeats the access to the next station; and after removal of the faulty position, the master station performs communication only with the primary communication line 11 again.
Patent JP-H10217901-A (JP)
Title: Assembly unit used for restraint device for vehicle occupant
Inventor: ROLAND WEISSWENGER
IPC: B60R21/20
Filed: 1998-02-04
Abstract: PROBLEM TO BE SOLVED: To provide an assembly unit of connecting structure which is formed in particular by a simple method between a gas outlet tube and an expansion driving device to be used for a gas bag type restraint device for vehicle occupants. SOLUTION: This assembly unit is provided with an expansion driving device 10, a gas outlet tube 12 which is connected to the expansion driving device 10 in an airtight condition, and an exhaust unit 15 which exhausts gas generated in the expansion driving device 10 when required. The exhaust unit 15 includes an attaching means 20 and the gas outlet tube 12 includes an engaging means 22. This assembly unit is constructed to be used for restraint device for vehicle occupants which is fixed to the expansion driving device 10 by engaging the engaging means 22 to the attaching means 20 in an engaged condition and by placing the gas outlet tube 12 in an axial direction to the attaching means 20.  In this case, the cross section of the attaching means 20 with a right-angled flank to an axial line in a longitudinal direction of the exhaust unit 15 is a circumferential groove of saw tooth shape and the flank is placed on the groove side facing to the gas outlet tube 12. The gas outlet tube 12 is engaged with the groove by a plastic deformation unit.
Patent JP-H08220679-A (JP)
Title: Photographic spectral sensitizing dye
Inventor: KODERA TATSUYA
IPC: G03C1/22
Filed: 1995-02-10
Abstract: PURPOSE: To provide the photographic spectral sensitizing dye high in sensitivity and small in fig and superior in resistance to residual dye staining. CONSTITUTION: This photographic spectral sensitizing dye is represented by the formula in which each of R1 and R3 is, independently, an alkyl or aralkyl or alkenyl group; R2 is an alkyl, aralkyl, alkenyl, or aryl group; each of L1 -L3 is a methne group; m is 0 or 1 or 2; n is 1 or 3: Z1 is an atomic group necessary to form a benzimidazole ring; Z2 is an atomic group necessary to form a 5- or 6-membered N-containing hetero ring; and X is a counter ion.
Patent JP-S61182001-A (JP)
Title: Production of image guide
Inventor: NAKAI HISANORI
IPC: G02B6/06
Filed: 1985-02-07
Abstract: PURPOSE:To obtain an image enabled to be expanded and having multi-picture element and high flexibility by integrating and winding picture elements drawn by an electric furnace around a belt applied two rollers and bundling the wound picture elements. CONSTITUTION:The belt 4 is applied around the rollers 3, the picture element preform 1 of the image guide is drawn by the electric furnace 2 and the picture elements 5 are wound around the belt 4. Since the distance between the rollers can be varied, an image guide having a required string length can be obtained by adjusting the interval and applying the belt 4 corresponding to the length. The number of picture elements can be increased by moving the rollers 3 in the axial direction and the bundled picture elements 5 are loosened by narrowing the interval of two rollers 3 and stored in a shaft 6 of which section is shaped like a trapezoid. The array of the picture elements 5 is arranged by pressing a plane plate 8 from the upper position of the picture element flux 7, and then the picture element flux 7 is fixed by fixing the inside of the shaft 6 with a bonding agent and cut off. Consequently, a long image guide aligned at both the end arrays can be obtained.
Patent JP-H02204336-A (JP)
Title: Glass ceramic body and its production
Inventor: YAMAGUCHI KOICHI
IPC: C03B32/02
Filed: 1989-01-31
Abstract: PURPOSE:To uniformize the nucleation of crystal, to improve the dimensional precision and to stabilize the strength by specifying the heating rate in the vicinity of the glass transition point when a glass body obtained by casting is heat-treated to produce the glass body. CONSTITUTION:The glass body formed into a desired shape by casting is heat- treated, the heating rate within + or -200 deg.C of the glass-transition point of the glass body is controlled to >=3 deg.C/min, and the glass body is heated and crystallized. Consequently, the formation of coarse crystals is controlled, and a glass ceramic body, in which the thickness of the coarse-crystal layer of the surface is controlled to 10-300mum, is produced. The heat-treating time is also reduced. The obtained glass ceramic body is excellent in the dimensional precision, mechanical strength, etc., and appropriately used for biological material, electrical insulating material, functional material, etc.
Patent JP-H09218179-A (JP)
Title: Electromagnetic field mass separation type gas analysis method
Inventor: TODA HIROMITSU
IPC: H01J49/34
Filed: 1996-02-08
Abstract: PROBLEM TO BE SOLVED: To continuously provide gas concentration signals over a wide range from low concentration to high concentration, easily adjust sensitivity and reduce manufacturing cost. SOLUTION: Voltage applied to an MCP element 49 is fixed so as to obtain the prescribed degree of amplification. The electric charge of He<+> ions is replaced by a secondary electron amount and amplified with the MCP element 49. Then, the secondary electron amount is detected with a secondary electron collector 50, and impedance converted with a preamplifier 51. Also, the electron amount is logarithmically compressed with a logarithmic amplifier 53 and polarity converted with an amplifier 57. Thereafter, the secondary electron amount is fed back to an ion takeout electrode 44 via a control amplifier 45.  The control characteristic, the feedback amount and the operation point of an ion extraction power source 44 are set in the control amplifier 45, so as to keep the the relationship of an exponential function (common logarithmic function), for example, between helium gas concentration and an output signal within the prescribed range.
Patent JP-S57138373-A (JP)
Title: Shell cracking method of nut
Inventor: OOISO HISAMI
IPC: A23N5/00
Filed: 1981-02-20
Abstract: PURPOSE: To make it possible to halve a nut, e.g., a walnut, without damaging the kernel on the inside thereof and scattering the shell thereof, by making V- shaped notched cutting blade parts approach opposite on the same plane.  
     CONSTITUTION: V-shaped notched cutting blade parts 2 notched in the form of V having a constant vertical angle α (120W160°) opposite in the top and bottom or in the right and left positions are formed in the central part of opposite sides of a pair of platy base plates 1, and a nut 4 is fed into the gap between the base plates 1. The base plates 1 are then made to approach on the same plane oppositely to hold the nut 4 and then pressed. In this case, the platy base plates 1 having the V-shaped notched cutting blade parts 2 are made to bite into about the thickness of the shell 5 in the nut 4 and crush the shell 5. Thus, the shell 5 is halved without scattering to take out a kernel 6 in the interior of the nut 4. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H05286631-A (JP)
Title: Paper sheet discharge device of image forming device
Inventor: UDA KOJI
IPC: G03G15/00
Filed: 1993-02-10
Abstract: PURPOSE:To discharge paper sheet while removing curl generated on the paper sheet by a fixing roller couple. CONSTITUTION:An image forming device includes a fixing roller couple 17, which consists of a heating roller 17a and a pressurizing roller 17b, and a discharge roller couple 18 which is installed downstream from the fixing roller couple 17 and consists of a driving roller 18a and a follower roller 18b. The peripheral speed of the driving roller 18a is made greater than that of the heating roller 17a, and the contacting point N of the driving roller 18a with the follower roller 18b is positioned nearer the pressurizing roller 17b than the tangent B to the peripheral surface of the heating roller 17a passing the intersecting point M of the straight line A formed by tying the center of the heating roller 17a with that of the pressurizing roller 17b with the peripheral surface of the heating roller 17a.
Patent JP-S59148703-A (JP)
Title: Method for capturing vermin and composition for capturing vermin use therefor
Inventor: KATOU TAKAO
IPC: A01N25/16
Filed: 1983-02-15
Abstract: PURPOSE:To capture vermins, easily without using an insecticidal component, by spraying a composition composed of a non-adhesive resin, a propellant, a foaming agent and a surface active agent to the vermin, and quickly solidifying the foamed material attached to the vermin. CONSTITUTION:A vermin-capturing composition composed of (A) 4-30wt% of a non-adhesive resin (e.g. polymethacrylate resin, polystyrene, etc.), (B) 5-90wt% of a propellant (e.g. flon), (C) 5-20wt% of a foaming agent and (D) 2-20wt% of a surface active agent (e.g. polyoxyethylene alkylphenyl ether) is filled in an aerosol container, and sprayed to vermin. The foamed material is attached to the vermin and solidified to enable the capture of the vermin. The above composition may contain an insecticidal component if necessary, however, vermins such as cockroach can be captured easily without using an insecticidal component, and the captured vermin can be disposed easily by hand.