baber/WOPTO huggingface dataset:
Patent JP-H11343292-A (JP)
Title: Therapeutic nucleoside compound and its production
Inventor: DALUGE SUSAN MARY
IPC: C07D239/42
Filed: 1999-05-06
Abstract: PROBLEM TO BE SOLVED: To obtain the subject compound having advantageous antiviral activity, especially viral activity advantageous for infection with human immunological deficiency virus and hepatitis type B virus and low cytotoxicity, by not substantially including an enantiomer corresponding to a specific nucleoside compound. SOLUTION: This compound is (1S,4R)-cis-4-[2-amino-6-(cyclopropylamino)-9H- purin-9-yl]-2-cyclopentene-1-methanol containing <10% w/w of a corresponding enantiomer and substantially not containing the corresponding enantiomer. As a preferable production method, the compound is obtained by treating an enantiomer compound of the formula [A is cyclopentene-1-methanol-yl of (1S,4R) configuration; Z is a precursor of a group R showing cyclopropylamino or the like] with a reagent to convert the precursor group Z into the fixed group R or under conditions.
Patent JP-S63290534-A (JP)
Inventor: ISHIKAWA KEIJI
IPC: A47J43/04
Filed: 1987-05-22
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-S61284733-A (JP)
Title: Optical modulator
Inventor: NISHIMURA YUKIO
IPC: H04N5/74
Filed: 1985-06-11
Abstract: PURPOSE:To display an image having good quality with high resolution by providing an optical element having a heating element for heating a molecular film consisting of org. compd. molecules having a hydrophilic part and hydrophobic part and driving means for driving said heating element. CONSTITUTION:The optical element OE of a transmission type consists of a substrate 1, the heating element 2, a monomolecular film or cumulative film 3 of monomolecular layers and a substrate sheet 4 for protection. the desired position of the element 2 is heated to generate a property change in the heated part 5 of the film 3. The optical path is changed or scattering is generated by the light passing through the part except the heated part 5 and the light passing through the heated part 6 if illuminating light 7 which is parallel light is made incident on the optical element 1 from the substrate 1 side thereof. The change is directly and indirectly detected and is displayed. A wide range of org. compds. having the hydrophobic part and hydrophilic part in the molecules are usable for the molecules constituting the monomolecular film or the cumulative film of the monomolecular layers.
Patent JP-H1112314-A (JP)
Title: Polymerization of alpha-olefin
Inventor: RO KISHU
IPC: C08F10/00
Filed: 1998-05-08
Abstract: PROBLEM TO BE SOLVED: To control the molecular weight of the resultant (co)polymer while retaining the catalyst activities and stereoregularity of the (co)polymer, enhance the hydrogenating reaction of the catalyst and obtain the olefin (co)polymer by using a solid complex titanium catalyst, a specific organometallic compound and a specified organosilicon compound so as to provide a melt flow rate(MFR) of the homopolymer as an external electron donor. SOLUTION: A catalyst system prepared by mixing (a) a solid complex titanium catalyst consisting essentially of a magnesium- and a halogen-containing titanium compound and an internal electron donor with (b) an organometallic compound of group I and III metals of the periodic table and (c) three or more kinds of organosilicon compounds capable of respetively providing <5, 5-20 and >=20 MFR of homopolymers when polymerizing the homopolymers by using each organosilicon compound under the same conditions is used to carry out the (co)polymerization to thereby afford the objective olefin (co)polymer.
Patent JP-S5917465-A (JP)
Title: Tube string carrier system
Inventor: UCHIDA YUUJI
IPC: D01H9/18
Filed: 1982-07-19
Abstract: PURPOSE:In a system for carrying the finely spinned tube string to the winder, to return the empty bobbin without any modification of the fine spinning machine by returning the empty bobbin to be mixed in the tube string feed path to the return path. CONSTITUTION:Single winder 2 is arranged for a plurality of fine spinning machines 1a-1n while a tube string feed path 3 and empty bobbin return path 4 are arranged between each machines 1a-1n and the winder 2 to couple them directly. Paths 5, 6, 7 for carrying or waiting the tray are provided in said machines 1a-1n. If the trays inserted with the tube string are carried simultaneously in the array direction 8, the empty bobbin on the tray t1-t5 placed on the path 6 is carried on the tube string feed path 3 under the state mixed in the way of the string. A lead-out device 10 is arranged in the way of said path 3 while a return path 11 for returning the empty bobbin to the return path 4 is provided.
Patent JP-H04328335-A (JP)
Title: Focus detection sensitivity correction method and optical pickup device
Inventor: NAKAYAMA MASAHIKO
IPC: G11B7/09
Filed: 1991-04-30
Abstract: PURPOSE:To reduce the fluctuation of focus sensitivity and to facilitate highly precise focusing by detecting the size of a spot on a three division light-receiving element and a division line orthogonal direction deviation amount and correcting deviation with that at the time of initialization. CONSTITUTION:A focus error signal FE1 is generated by a difference signal between the light quantity of a light-receiving surface (b) in the three division light-receiving element 7 and the light quantity of light-receiving surfaces (a) and (c) on both ends. A spot signal SP is generated by the difference signal between the light quantity of the light-receiving surfaces (a) and (c) on both end parts. The signals FE1 and Sp are inputted to a focus detection sensitivity correction circuit 11 and a focus error signal FE2 is generated based on a previously decided sensitivity correction coefficient, and a focus is controlled by the signal FE2. Thus, deviation at the time of setting detection sensitivity is corrected, and sensitivity fluctuation is reduced, whereby correspondence to an adjustment error, an environmental condition and secular change can easily be executed.
Patent JP-S62283708-A (JP)
Title: Piezo-oscillator
Inventor: OUTSUKA HIDEO
IPC: H03B5/32
Filed: 1986-05-30
Abstract: PURPOSE:To obviate such defects as an operating point of a piezoelectric vibrator changes, a series resistance becomes small, and the titled oscillator is not easily started, by constituting the oscillator so that a load capacity of a oscillator becomes large virtually at the time of start, even if a negative resistance of the oscillator is shallow. CONSTITUTION:A piezoelectric vibrator 2 is connected to an oscillator circuit 1, and an adjusting capacitor 3 is connected in series to the piezoelectric vibrator 2. As for the adjusting capacitor, that which has a comparatively small capacity is used, and the oscillator is constituted so that a capacitor 4 of a large capacity is connected in parallel to this adjusting capacitor by turning on a switch 5. The switch 5 is closed at the time of start, and the operation becomes a state that the capacitor of a large capacity has been connected in series to the piezoelectric vibrator 2, and instanteneously, the switch 5 is opened. As a result of such an operation, the virtual load capacity becomes large, and even a piezoelectric vibrator which is not easily started comes to be easily oscillated.
Patent JP-H10318374-A (JP)
Title: Sealing device for cylinder
Inventor: ISHIKAWA OSAMU
IPC: F15B1/24
Filed: 1997-05-16
Abstract: PROBLEM TO BE SOLVED: To prevent a back up ring from an abnormal installing condition when a piston is inserted into a cylinder by forming an annular groove for sealing ring provided with the installing groove between surfaces fitted to a cylinder of a piston, and arranging the seal ring and the back up ring on the annular groove. SOLUTION: An accumulator 1 on which a sealing device A is mounted, is constituted by screwing a flow-in port part 12 around the opening part of a bottomed cylindrical cylinder 2, and a gas filling valve 16 is arranged on the top part of the cylinder 2. A piston 3 is fitted into the cylinder 2. In the piston 3, two trains of an annular grooves 8 for a seal ring are formed on a surface 14 fitted to the inner circumferential surface 2a of the cylinder, a seal ring 6a for a hydraulic fluid is mounted in the annular groove 8 of the hydraulic fluid side, and a seal ring 6b for gas pressure is mounted in the annular groove 8 of an accumulating chamber 4 side. A back up ring 7 for supporting the seal ring is mounted in each annular groove 8, and it is installed by fitting to an installing groove 17 arranged on a bottom surface 9 of the annular groove 8.
Patent JP-H10319761-A (JP)
Title: Fixing device
Inventor: TANGE KEIGO
IPC: G03G15/20
Filed: 1997-05-16
Abstract: PROBLEM TO BE SOLVED: To provide a fixing device capable of operating in a shorter warm-up time with less energy consumption by reducing the loss of heat energy during roller heating to make the temperature rise of a fixing roller faster. SOLUTION: A fixing device has a fixing roller 100 provided with a resistance heating element layer 120 on the surface of a glass base 110. The fixing roller 100 is provided with an infrared reflecting layer 140 containing a heat reflecting metal layer on the side, where the resistance heating element layer 120 is not provided, on the inside surface or the outside surface of the glass base 110. The radiation factor of the infrared reflecting layer 140 is smaller than that of the glass base 110.
Patent JP-H02305219-A (JP)
Title: Semiconductor integrated circuit
Inventor: OBAYASHI SHIGEKI
IPC: H03K19/08
Filed: 1989-05-19
Abstract: PURPOSE:To attain high speed operation with low power consumption by driving an output terminal with 1st, 2nd bipolar transistors(TRs) and 4th and 5th insulation gate field effect TRs and controlling the conduction/nonconduction of the 4th and 5th insulation gate field effect TRs based on the base level of the 1st bipolar TR. CONSTITUTION:A collector of a bipolar TR Q1 driving an output VO connects to a power supply Vcc, and the emitter connects to the output VO. PMOS TRs MP1, MP2 and MP3 are connected in parallel between the collector and the base of the TR Q1, and NMOS TRs MN1, MN2, MN3 are connected in series between the base of the TR Q1 and a power supply VE. Even when a very large load is connected to the output VO, since the input of the CMOS inverter 1 is connected to the base of the TR Q1 having a comparatively small load, MOS TRs MP4, MP5, MN8, MN9 reach quickly the steady-state, and no large through-current flows.
Patent JP-S61286710-A (JP)
Title: Method for measuring tilting of lens
Inventor: YOKOMORI KIYOSHI
IPC: G01M11/00
Filed: 1985-06-13
Abstract: PURPOSE:To measure even the slight tilting of a lens with high sensitivity, by observing the sharing interference fringe of mutual diffracted lights different in order due to the equal interval linear diffraction lattice arranged on an optical axis. CONSTITUTION:A lens 1 to be tested is arranged in almost parallel coherent luminous flux 5 and an equal interval linear diffraction lattice 2 is arranged so as to be vertical to the optical axis of the luminous flux 5. The luminous flux 5 is diffracted by the lattice 2 to form a 0-order diffracted light 51, a +primary diffracted light 52 and a -primary diffracted light 53. These diffracted lights are respectively incident to a light detector 3 so that the luminous fluxes are partially superposed to each other and laterally shifted interference fringes are generated in the overlapped part 41 of the diffracted lights and the overlapped part 42 of the diffracted lights 51, 53. If each of three diffracted lights is a perfect spherical wave, no interference fringe is generated. When the lens 1 coincides with the optical axis of each of the luminous fluxes 5, interference fringes mutually taking mirror surface symmetry are generated in the overlapped parts 41, 42 and, when the optical axis of the lens 1 is tilt, said fringes become asymmetric. Therefore, if these interferences are utilized, the tilting of the lens can be measured with high sensitivity.
Patent JP-S5652598-A (JP)
Title: Control method of compressor
Inventor: SHIMADA TAMOTSU
IPC: F04B49/00
Filed: 1979-10-04
Abstract: PURPOSE: To permit economical and stable operation of a compressor even if the atmospheric pressure varies, by introducing the variable of suction pressure into the signal which is input to a surging preventing adjusting meter.  
     CONSTITUTION: Flow rate signal is transmitted to a function generator 1 from a flow rate transmitter 2. The function generator 1 outputs the pressure ratio signal π* corresponding to the flow rate signal transmitted, in the relation between the flow rate and the pressure ratio on the surging preventing line set beforehand, and the pressure ratio signal is input into a surging preventing adjusting meter 5. On the other hand, into said adjusting meter 5, also the pressure ratio signal π between the actual suction pressure Ps and the discharge pressure Pd is introduced, and the deviation of the signal π* from the signal π is calculated in this adjusting meter 5. When the signal π is larger than the signal π*, a blow-off valve 4 is controlled to open, and the surging of the discharge pressure of a compressor B can be avoided. Further, in the embodiment shown in the figure, both suction pressure transmitter 6 and discharge pressure transmitter 3 use absolute pressure transmitters. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S6110144-A (JP)
Title: Power take-out device for marine engine
Inventor: TAKAHASHI TAKASHI
IPC: B60K25/06
Filed: 1984-06-22
Abstract: PURPOSE:To damp the torsional vibration by increasing the spring function due to squeeze of oil film through utilization of an intermediate gear in a gear train. CONSTITUTION:An intermediate gear 13 is placed between the gears 11, 12 to form a gear train then said gear 13 is fitted idly through a gap 15 on an idling wheel 14. The idling wheel 14 is secured to the rotary shaft 9 to be rotatable integrally with the rotary shaft 9. Since the spring function due to squeeze of oil film can be increased through utilization of the intermediate gear 13 in the gear train, the torsional vibration of main engine can be damped without employing a large and expensive high elastic coupling.
Patent JP-S6020880-A (JP)
Inventor: NIIHAMA TADAYUKI
IPC: B23P19/00
Filed: 1983-07-12
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-H1043135-A (JP)
Title: Ophthalmologic device
Inventor: FUKUMA YASUFUMI
IPC: A61B3/10
Filed: 1997-05-16
Abstract: PROBLEM TO BE SOLVED: To easily perform alignment control by projecting an index on the eye to be examined, detecting reflected index light reflected from the eye to be examined and correcting the measured value of optical characteristics of the eye to be examined based on the deviation quantity of alignment. SOLUTION: A loop-shaped slit 11 having a center on an optical axis A of a device is formed on an index plate 10, and an index illumination part composed of a loop-shaped light source 12 and a reflection mirror 13 is arranged at the back of the slit 11. Then, a loop-shaped virtual image 11 formed by light from the slit 11 reflected on the cornea C of the eye to be examined is detected through lenses 16 and 17 provided on the index plate 10 by detectors 14 and 15. With a threshold level as a reference, counter circuits 31 and 32 obtain a binarized signal for each picture element and obtain address information.  Based on the address information, an arithmetic circuit 33 finds the central point of the index image, calculates the deviation quantity when this central point is different from the address to position it at the time of proper working distance and operates the size of the index image when the device is positioned in the regular working distance.
Patent JP-S63292151-A (JP)
Title: Electrophotographic recorder
Inventor: NAKADA MASAO
IPC: G03G15/20
Filed: 1987-05-25
Abstract: PURPOSE:To prevent the generation of wrinkles and the jamming of a form by detecting an obliquely traveling form and discharging it from a pre-stage position of a fixing unit, and feeding only a form of a normal attitude to the fixing unit. CONSTITUTION:When a form does not travel obliquely, it passes through a regular feed paper pass route 5, and the form passes through a fixing unit 6 from a hopper 1 and travels normally. When the form has traveled obliquely, the form 21 at the time when it has traveled obliquely on the hopper 1 is detected by a sensor 18 attached to the hopper 1, and based on a signal from the sensor 18, a solenoid 10 operates in the direction C and a rib plate 9 is shifted to the upper part from the other rib plate 8, and matching faces 8a, 9a of the two rib plates 8, 9 are opened. Accordingly the obliquely traveling form 21 is guided to the matching faces 8a, 9a of the opened rib plates 8, 9 and it carrying direction is switched to a pass route 7 side, said paper passes through a discharge roller 11 and a discharge roller 12 through a paper guide 15, and finally, the obliquely traveling form is stared on a stacker 16. In such a way, the wrinkles and the jamming of the form are not generated.
Patent JP-H08322268-A (JP)
Title: Three-/single-phase voltage converter
Inventor: OKUMA YASUHIRO
IPC: H02M7/5387
Filed: 1995-05-26
Abstract: PURPOSE: To improve the conversion efficiency of a three-/single-phase voltage converter by connecting two sets of circuits each of which is constituted by connecting two diodes in series with each other in parallel with two sets of switching circuits each of which is constituted by connecting a diode in antiparallel with a semiconductor switching element and operating each semiconductor switching element at a high frequency. CONSTITUTION: A three-/single-phase voltage converter is provided with a first serial circuit 21 constituted by connecting diodes 11 and 12 in series, second serial circuit 22 constituted by connecting diodes 13 and 14 in series, third serial circuit 23 constituted by connecting in series switching circuits 15 and 16 each of which is constituted by connecting a diode in antiparallel with an IGBT, and fourth serial circuit 14 which is constituted by connecting in series switching circuits 17 and 18 each of which is constituted similarly to the circuits 15 and 16. Then snubber circuits 6 are connected in parallel with the parallel connecting circuit of the serial circuits 21-24 and capacitors 25, 26, and 27 are respectively connected between the RST of each phase of a three- phase AC power source 2. The three-phase alternating current from the power source is efficiently converted into a single-phase alternating current by operating switching circuits 33-36 at high frequencies and the single-phase alternating current is supplied to a single-phase AC load 7.
Patent JP-S5461373-A (JP)
Title: Gas tempering method for electric dust collector
Inventor: OOTSUKA KASHIYOU
IPC: B03C3/013
Filed: 1977-10-24
Abstract: PURPOSE:To prevent the decrease of dust collecting efficiency by adding electrically negative gas from a smoke inlet duct into an electric dust collector to control discharge electric current. CONSTITUTION:As the exhaust gas absorbed into an electric dust collector 1 from a smoke inlet duct 4 is more than 300 deg.C hot, electrically negative gas is added  through a nozzle 7. Sulfur hexafluoride or ammonia etc. are used for negative gas.  Gas of sulfur hexafluoride or ammonia has large electron lyophilicity, drawing to itself the ion gnereated through corona discharge, lowering the ion mobility, regulating corona discharge; thus spark voltage is increased. This method controls the  frequent occurrences of spark discharge and prevents the lowering of dust collecting efficiency.
Patent JP-2000317183-A (JP)
Title: Control device for sewing machine
Inventor: MIYATA AKIYOSHI
IPC: D05B65/02
Filed: 1999-05-07
Abstract: PROBLEM TO BE SOLVED: To provide a control device of a sewing machine capable of maintaining the temperature of a heating element in a proper condition for cutting a thread at the time of cutting the thread and controlling the thread cutting operation always properly. SOLUTION: This control device has a thread information input means 45 for inputting information about a sewing thread, a thread cutting condition memory means for storing conditions for cutting a thread, and a thread cutting condition determining means 48 for determining a thread cutting condition among those stored in the thread cutting condition memory means 47 based on the thread information inputted by the thread information input means 45. The device also has a control means 50 for cutting the thread based on the thread cutting condition determined by the thread cutting condition determining means 48.
Patent JP-S61285494-A (JP)
Inventor: WASHIMI KOICHI
IPC: B25J13/08
Filed: 1985-06-12
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-H08306299-A (JP)
Title: Electronic source and method therefor
Inventor: DEIIN BEEKAA
IPC: H01J3/02
Filed: 1996-04-24
Abstract: PROBLEM TO BE SOLVED: To provide an electron source which maintains its function, even if a row conductor short-circuits with a column conductor. SOLUTION: A display device 10 includes an electron source having a row conductor 17 using a plurality of longitudinal elements 26, 28. The longitudinal elements 26, 28 each have extraction parts 19, 23, extending from the longitudinal element concerned to the neighboring longitudinal element. The longitudinal elements 26, 28 are electrically connected to each other by a plurality of transverse connectors 29, 38, 39. If a short-circuiting occurs between the row 17 and columns 12, 36 situated therebelow, since a short-circuitted part can be electrically cut off and therefore the residual parts of this row maintain an operating state.
Patent JP-S6021905-A (JP)
Title: Acrylic fiber having high strength and elastic modulus and its manufacture
Inventor: TANAKA HIROYOSHI
IPC: D02J1/22
Filed: 1983-07-15
Abstract: PURPOSE:To manufacture an acrylic fiber having high strength and elastic modulus required for an industrial or reinforcing fiber, by carrying out the dry and wet spinning of an AN polymer having high polymerization degree under a specific condition. CONSTITUTION:An AN polymer having an intrinsic viscosity of >=2.0, preferably >3.8 is dissolved in a solvent such as DMSO to obtain a spinning dope having a solution viscosity of >=2,000 poise and usually <=15,000 poise at 45 deg.C. The dope is spun by the dry and wet spinning process (the length of the path in air is set to 1-200mm. preferably 3-20mm.), drawn about 2-10 times by the primary drawing under moist heat or steam heat condition, washed with water, dried, and drawn >=1.1 times under dry heat condition to the overall draw ratio of >=10, preferably >=12.
Patent JP-H04354745-A (JP)
Title: Sheet supply device
Inventor: TAKANO MASAHARU
IPC: G03G15/00
Filed: 1991-05-31
Abstract: PURPOSE:To distinguish the residual amount of sheets in a sheet feeder cassette device. CONSTITUTION:A photo-reflex type sensor device 16a is installed in the position confronting a sheet feeder cassette device 10a, and when a pickup roller 37a lies in the non-takeout position over the cassette device 10a. judgement is made if there is any sheet P from occurrence of light reception by a photo-receiving element 14. A photo-absorbing member is provided on the pickup roller 37a, and the residual amount of sheets P is distinguished from occurrence of light reception by the photo-receiving element 14 when the roller 37a is taken out. This enables refilling of sheets P before sheets go out on the way of a copying run, and thus the operating easiness in copying and refilling sheets is enhanced.