baber/WOPTO huggingface dataset:
Patent JP-2000344694-A (JP)
Title: Production of optically active 3-pentyn-2-ol
Inventor: TAKEHARA JUN
IPC: C07C29/143
Filed: 1999-06-01
Abstract: PROBLEM TO BE SOLVED: To obtain an optically active 3-pentyn-2-ol useful as a synthetic intermediate for pharmaceuticals, etc., on an industrial scale in high reaction yield and optical yield at a low cost using a catalytic amount of asymmetric source by using a metallic catalyst containing a specific ligand. SOLUTION: The objective compound of formula III is produced by the hydrogen-transfer asymmetric reduction of (A) 3-pentyn-2-on of formula I with formic acid in the presence of a catalyst comprising a combination of (B) a compound of a group VIII metal of the periodic table (preferably a ruthenium compound) and (C) an asymmetric ligand of formula II [R3 and R4 are each a (substituted)alkyl, an aryl or an aromatic ring; R5 and R6 are each H, a lower alkyl, an acyl or the like; the mark * represents asymmetric carbon atom] and a base (preferably a tertiary organic amine). The reaction is preferably carried out by using acetonitrile or dimethylformamide as a reaction solvent.
Patent JP-H0446784-A (JP)
Title: Working tool positioning device
Inventor: YAGISAWA MASASHI
IPC: B25J18/02
Filed: 1990-06-11
Abstract: PURPOSE:To move a tool at high speed by providing each motor for rotating a ball screw bearing and a spline bearing, and providing a control device for driving the motor for the spline bearing to the direction reverse to the rotation direction of the motor for the ball screw bearing at the time of driving the motor for the ball screw bearing. CONSTITUTION:A motor 6 for a spline bearing is rotated reverse to the rotation direction of a motor 4 for a ball screw bearing by a control device 15. A ball screw bearing 3 and a ball spline shaft 8 are thereby rotated relatively, and the ball screw bearing 3 is rotated at the speed that the speed of the ball spline shaft 8 is added. The ball spline shaft 8 and a working tool 7 can be moved to a predetermined position at high speed without increasing the rotation of the motor 4 for the ball screw bearing.
Patent JP-H0447327-A (JP)
Title: Coordinate scale displaying system
Inventor: ISHIHARA MASAMITSU
IPC: G06F3/048
Filed: 1990-06-12
Abstract: PURPOSE:To easily and correctly determine a coordinate position by moving the displaying position of a coordinate scale to a position whose origin is the coordinate position corresponding to coordinate data inputted just now every time the coordinate data of a pattern is inputted, and providing the position for the input of the next coordinate data. CONSTITUTION:When the coordinate data of a moving destination is inputted by a keyboard 8 while a system is kept in a state that the manual movement mode of the coordinate scale is designated, a coordinate scale manual movement control means 12 moves the displaying position of the coordinate scale on a display device 9 to the position whose origin is the coordinate position corresponding to the coordinate data of the moving destination inputted just now. Thus, at the time of determining the next coordinate position, the moved coordinate scale can be used as the origin as it is, and thus, the new coordinate position can be easily and correctly determined.
Patent JP-H0444075-A (JP)
Title: Heating device
Inventor: SETORIYAMA TAKESHI
IPC: G03G15/20
Filed: 1990-06-11
Abstract: PURPOSE:To reduce driving torque and a film displacing force and to eliminate damage such as film breaking by placing at least part of the peripheral length of an endless heat-resisting film always in a tension-free state. CONSTITUTION:The majority of the endless heat-resisting film 21 except the part sandwiched between a heating body 19 and the nip part N of a pressure roller 10 is placed in the tension-free state when no driven. When the film 21 is driven, a drawing force (f) operates on the film part on the upstream side of the nip part N in the rotating direction of the film and then the film 21 rotates while sliding on the nearly lower half surface part of an outward accurate curve front surface plate 15 as the film internal surface guide of a stay 13. Consequently, at least a film part surface B nearby a recording material sheet entry side and the film part of the nip part N are prevented from wrinkling through the operation of the tension. Consequently, the driving force for the film is reduced and the displacing force of the film is made small to prevent a film end part from damage.
Patent JP-H0444057-A (JP)
Title: Image forming method
Inventor: TAKAHASHI SATOSHI
IPC: G03G13/09
Filed: 1990-06-11
Abstract: PURPOSE:To form an image with high density and high resolving power and to reduce toner scattering by selecting the best ranges of the mean surface charge density of toner and a photosensitive body, which have a close mutual relation, DC developing electric field, etc. CONSTITUTION:Normal development or reversal development is performed in non-contact in the presence of a specific DC developing electric field and a vibrating electric field by using a two-component developer. For the image formation, the absolute value of the surface area mean particle size of the particulate toner is 2 - 8mum, the absolute value of the mean surface charge density is ¦3 - 6¦nc (nc is nano-coulomb), and the absolute value of the mean surface charge density of an unexposed part in the development area of the photosensitive body is ¦25 - 125¦nc/cm<2>; and the absolute value of the DC developing electric field is ¦1X10<3> - 1X10<5>¦V/cm, the absolute value of the amplitude of an AC bias is ¦0.5X41¦Kv(p-p), and its frequency is 0.1 - 10kHz. Thus, a condition is set for high-quality image formation and the picture quality is controlled. Consequently, the sharp image which has excellent gradations, high density, and high resolving power can be supplied stably for a long period, and the toner scattering is reduced.
Patent JP-S5778058-A (JP)
Title: Copying device
Inventor: SUGIHARA TAKESHI
IPC: G03G15/043
Filed: 1980-11-04
Abstract: PURPOSE:To make illuminance distributions uniform by providing an exposure illuminance correcting liquid crystal consisting of juxtaposing plural illuminance control elements of which at least one of optical mechanisms for illuminating originals and optical mechanisms for projection exposure are controlled respectively independently, in the width direction of originals. CONSTITUTION:With respect to respective elements E in an exposure illuminance correcting liquid crystal plate 10, their states can be controlled by a control circuit 11, so that arbitrary elements E can be made transparent and the other elements E reflective. The parts of a reflecting mirror 4 covered by the elements E in the transparent state function in the same way as when said elments E are absent, but the elements E in the reflective state reflect the light from a light source 3 irregularly, and this provides the reflection effect differing from that by the mirror 4, thus  the reflection characteristics of the mirror 4 can be changed in its longitudinal direction. Hence, the illuminance patterns in the X direction in the illumi nating  region B of an original plate 1 are measured, whereby an ideal illuminance pattern  is obtained.
Patent JP-H09380-A (JP)
Title: Seat member
Inventor: HATANAKA TAKESHI
IPC: A47C7/62
Filed: 1995-06-21
Abstract: PURPOSE: To provide a seat member capable of preventing the shift of the hips without causing pain. CONSTITUTION: A seat member consists of a base stand 21 having a large number of holes 23 formed on the seat surface thereof and a hip shift preventing element 22 having the protruding parts fitted in the holes 23 of the base stand 21. The hip shift preventing element 22 has the protruding parts on its contact surface side with the base stand 21 and protrudes in a streamline shape from the contact surface side. By this constitution, the protruding parts are fitted in the proper holes 23 corresponding to the size of the hips to attach the hip shift preventing element 22 to the base stand 21.
Patent JP-H0815316-A (JP)
Title: Method and composition for fixing fine pin on probe card
Inventor: NAKANO TATSUO
IPC: C08F290/00
Filed: 1994-07-05
Abstract: PURPOSE:To form a hardened compound excellent in the power for fixing a pin by rendering the pin conductive, applying a liquid fixing composition thereto and hardening, and then cleaning and removing the unhardened part on the surface of the fixing composition using a solvent thereby exposing the head part of the pin. CONSTITUTION:A large number of fine single crystal pins present on a silicon substrate are rendered conductive through plating, for example, on the surface thereof and then the pins are secured to the substrate and reinforced using a liquid fixing compound. Subsequently, the substrate is removed through abrasion or etching and the pins are bonded to a wiring board for external take-out. Following components and ratio are preferably employed for the fixing composition. Both terminal vinylation 1, 2 polybutadiene 40-97wt.%, methaacrylic acid ester monomer 2-50wt.%, an organic compound as a radical polymerization starting agent 0.5-10wt.%, and metal soap 0.5-15wt.%. A low viscosity liquid and a tough solid hardened compound having low shrinkage are required for the liquid fixing composition.
Patent JP-H04230011-A (JP)
Title: Manufacture of single layer capacitor
Inventor: HANSUUBUORUFUGANGU BURANDO
IPC: H01G4/12
Filed: 1991-05-30
Abstract: PURPOSE: To obtain an easy manufacturing method for a single-layer capacitor which has relatively high sheet capacitance, low temperature dependence for a dielectric constant and a dielectric loss factor, and relatively high insulating resistance. CONSTITUTION: To manufacture a single-layer capacitor, having a ferroelectric layer based upon titanate in array between 1st and 2nd novel metal electrodes as a derivative on a substrate, the ferroelectric layer is formed of barium titanate to a 0.2 to 0.6μm thickness, a stable solution of salt of carbon, alkoxide, and/or acetyl acetate is applied and thermally decomposed at 500 to 700 deg.C temperatures. A solution which constitutes the ferroelectric layer is so prepared as to obtain an approximately 1mol% excess amount of titanate after the thermal decomposing process. This coating process is repeated until the desired layer thickness is obtained, and then a 2nd novel metal electrode is provided on the ferroelectric layer.
Patent JP-H101049-A (JP)
Title: Railcar gage-varying carriage
Inventor: TOKUDA NORIAKI
IPC: B61F5/00
Filed: 1996-06-14
Abstract: PROBLEM TO BE SOLVED: To decrease the friction between an axle box and body support rails in varying the gage of a railcar and prevent the disengagement of the axle box from a locking block during normal traveling of the railcar. SOLUTION: An axle box 20 of a gage-varying carriage moves along body support rails 15 by means of a pair of turning rollers 31 which roll on the body support rails 15. During normal traveling, since a slide block 41 which contacts with a locking block 9 at the bottom thereof is locked by a locking piston 45 on the axle box 20, the axle box 20 is prevented from floating with respect to the locking piston 9 and thus both axle box and locking piston are prevented from disengaging from each other. In varying the gage, on the other hand, a locking-piston push rod 47 pressed upward by the body support rails 15 displaces the locking piston 45 to disengage the slide block 41 from the axle box 20.
Patent JP-H0448620-A (JP)
Title: Positioning controller
Inventor: TSUI KOTARO
IPC: B23Q15/00
Filed: 1990-06-14
Abstract: PURPOSE:To raise control frequency and shorten step positioning response time by attaching an acceleration sensor to a precise X-Y stage so as to detect the acceleration, and extracting only the object frequency band by a band path filter, and adding the acceleration and a feedback loop, as a minor loop, into a control loop. CONSTITUTION:This is a filter circuit for extracting target frequency band, comprising a jerk gauge 9, an acceleration gauge 10, and a minor feedback loop 11. An acceleration sensor 12 is attached to the vicinity of a Y direction measuring mirror 8, to sensitively detect the resonance peak of the rolling mode in Y direction to become a problem. At this time, it is attached to the position where it picks up the vibration above 200Hz as rarely as possible.
Patent JP-S5779167-A (JP)
Title: Current limiting wire
Inventor: SAKAMOTO HIROSHI
IPC: H01C7/13
Filed: 1980-11-04
Abstract: PURPOSE:To provide a current limiting wire of high corrosion and heat resistances and good workability by forming a coating layer of an FeAl intermetallic compound to pure Fe. CONSTITUTION:The above-mentioned current limiting line is made by a method (Al pack method) of burying Fe in a pack material consisting of, for example, Al powder, an inert carrier and a diffusion accelerator and heating the same in an inert gas. The FeAl intermetallic compound formed on the surface of the pure Fe obtained by this is stable and the diffusion to the pure Fe does not occur substantially. It is preferable to set the thickness of the FeAl intermetallic compound at <=100mum, and more preferable to set it at >=5mum in terms of maintaining oxidation resistance and corrosion resistance over a long period of time.
Patent JP-S5580340-A (JP)
Title: Protective container for airtight sealing
Inventor: NAGAI TAKESHI
IPC: H01L23/04
Filed: 1978-12-12
Abstract: PURPOSE: To improve the heat response charactristics by the structure such that a protective container for airtight sealing and enclosing a heat senstive element is made of a composite container consisting of a copper container and an iron container, and the element is placed inside the copper container.  
     CONSTITUTION: A protective container to enclose heat sensitive element 9 is constructed of copper protective container 8 and iron protective container 10. One end of container 8 is closed, and element 9 is placed inside in this neighborhood. Its other end is kept open. One end of iron container 10 whose both ends are open is inserted into the open end of container 8, and these are connected by means of wax or solder layer 20. Subsequently, element 9 is fitted to the end of lead line 3 of hermetically-sealed terminal 4 consisting of metal container 1 having glass 2 through which two lead lines 3 pass. Terminal 4, with element 9 directed inward, is inserted into the other open end of container 10. By this, the heat response of element 4 is increased, suitable for application to an instant hot-water boiling device or a hot water container. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H0664401-A (JP)
Title: Automobile wheel with slot for attachment in radial direction
Inventor: PETSUTSUOONI BITSUTORIO
IPC: B60B3/16
Filed: 1993-06-24
Abstract: PURPOSE: To provide a wheel suitable for being fastened to a plurality of hubs. CONSTITUTION: This metallic motorvehicle wheel involves a series of fastening slots 2 disposed equidistant from the wheel center and equally spaced, wherein the contour of each slot 2 is formed so that straight segments 4, 4' may be connected to each other through semicircumferences 3, 3' whose center is on the same geometrical radius of the wheel, and the slot 2 is the motorvehicle wheel formed on the bottom of a recessed part 5 formed on an external flange of the wheel. The wheel is, therefore, suitable for being fastened to various types of hubs, and capable of avoiding problems caused by a play for screwing a screw, or a nut in a wheel fastening hole.
Patent JP-H04351600-A (JP)
Title: Solid correction tool
Inventor: OKAI SADAHIRO
IPC: C09D10/00
Filed: 1991-05-29
Abstract: PURPOSE:To obtain a solid correction tool excellently conducting rewriting and not fouling the section near a coated section by using a masking material, wax and a crystal-form high molecular polyethylene oxide. CONSTITUTION:A solid correction tool is composed of an approximately 40-90wt.% masking material such as a white pigment, approximately 10-45wt.% wax and approximately 1-8wt.% crystal-form high molecular polyethylene oxide. The solid correction tool is obtained by heating, agitating and mixing each component and kneading the mixture by a kneading machine such as a kneader, a roll mill, etc., as required and pouring the kneaded mixture into a mold under a molten state or injecting, press-fitting or extruding the kneaded mixture and cooling and solidifying the extruded substances.
Patent JP-S5378676-A (JP)
Title: Apparatus for treating kitchin refuse
Inventor: MOTOHASHI MASAHIRO
IPC: B02C18/00
Filed: 1976-12-20
Abstract: PURPOSE: To accomplish accurate recovery of kitchin refuses with ease with a refuse storage box installed moveably to a mount body and fitted with a locking device in such a manner as to charge openings of the two sections to be closely attached. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H04350322-A (JP)
Title: Actuator device for engine
Inventor: MATSUDA IKUO
IPC: F02D9/02
Filed: 1991-05-28
Abstract: PURPOSE:To prevent torque shock of an engine by reducing variations in the time at which the pressure in a pressure chamber of an actuator is switched from negative pressure to positive pressure. CONSTITUTION:A check valve 13 which may be released by the pressure difference above a fixed value and a resistance part 14 whose resistance is larger than passage resistance at the time of releasing the check valve 13 are arranged and installed in parallel in a passage 11 for introducing positive pressure into a pressure chamber 5b partitioned by a diaphragm 5a.
Patent JP-H0319110-A (JP)
Title: Magnetic head
Inventor: YANAGI MICHIO
IPC: G11B5/127
Filed: 1989-06-16
Abstract: PURPOSE:To obtain satisfaction for the strength of a head chip and for an electromagnetic conversion characteristic by accumulating a specific lamination film on at least one butt face of a pair of magnetic cores. CONSTITUTION:The lamination film of SiO2 films 3 and 3' and Cr2O3 films 4 and 4' are accumulated on at least one butt face of a pair of magnetic cores 2 and 2', and both magnetic core half bodies are abutted, whereby they are welded and jointed. At that time, the Cr2O3 films 4 and 4' and the SiO2 films 3 and 3' are operated as magnetic gap materials constituting a magnetic gap g. The wettability of the magnetic gap member for melting glass 5 can be improved compared to a case when only the SiO2 films 3 and 3' are set to be the magnetic gap members g, and the hardness of the magnetic gap members can be set to one near a magnetic member compared to a case when only the CrO3 films 4 and 4' are set to be the magnetic gap members. Thus, the strength of the head is held and the electromagnetic conversion characteristic becomes satisfactory.
Patent JP-H103831-A (JP)
Title: Longitudinal taping device and longitudinal taping method
Inventor: YONEKAWA HIROYUKI
IPC: H01B13/26
Filed: 1996-06-14
Abstract: PROBLEM TO BE SOLVED: To prevent tape winding failures in the case of longitudinally lapping around a tape by forming a normal temperature adhesive layer between a wire and a tape. SOLUTION: At least two pairs of roller dies 32 and 33 are provided on the downstream side of a throttle die. An upstream roller die 32 is arranged so that a roller 34 constituting the roller die 32 sandwiches a tape alignment 4B. A tape 4 covering the periphery of an insulation wire 2 via an adhesive layer 4A can be adhered to the outer circumference face of the insulation wire 2 without forming wrinkle folding by pressurizing the tape in the radial direction of the insulation wire 2.
Patent JP-S6270485-A (JP)
Inventor: HAINTSU FUROONERUTO
IPC: C10G49/00
Filed: 1986-07-02
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-H0446254-A (JP)
Title: Motor with reduction gear
Inventor: IZUMI YUTARO
IPC: F03C1/26
Filed: 1990-06-13
Abstract: PURPOSE:To shorten diameter and axial length of the device and simplify changeover of speed by rotatably providing external gears of a gear motor on a main body, fixing an internal gear on a driven member, and inserting the main body in the internal gear of the driven member. CONSTITUTION:A hydraulic motor with reduction gear 20 fitted on the flange 2 of a supporting body 1 of a crawler 9 is constituted so that a main body 21 rotatably provided with a first gear 25a, a second gear 25b, and a third gear 25c is provided in an outer cylinder 26 having an internal gear 27 and a sprocket 8, and the internal gear 27 meshes with the first gear 25a and the second gear 25b. The sprocket is rotated by rotation of the first gear 25a and the second gear 25b through the internal gear 27, and the rotating speed of the sprocket 8 is low but the torque is high. In this way, by providing two hydraulic motors in the outer cylinder 26 and changing over the charge and discharge ports of the hydraulic motors in parallel or in series, the speed of the outer cylinder 26 can be changed over into two stages.
Patent JP-H0446331-A (JP)
Title: Silver halide photographic sensitive material
Inventor: UEDA KOICHI
IPC: G03C1/12
Filed: 1990-06-13
Abstract: PURPOSE:To obtain a silver halide photographic sensitive material having slight residual color and high whiteness even in the case of rapid processing and also having high sensitivity, high quality, low fog and especially superior sharpness by specifying the total amt. of gelatin applied on one side of a base on which an emulsion layer having the max. absorption in a prescribed wavelength range is present. CONSTITUTION:A silver halide emulsion layer is color-sensitized so that it has the max. absorption in the wavelength range of 600-750nm and the total amt. of gelatin applied on one side of a base on which the silver halide emulsion layer is present is regulated to <=3.0g/m<2>. Since the amt. of gelatin is small, the blurring of an image due to unevenness and bleeding caused by the light scattering phenomenon of gelatin is suppressed and the sharpness is considerably improved. Development proceeds very stably and superior development stability is ensured not only in rapid processing but also in the conventional processing requiring >=20sec development time. When an oil-soluble optical whitening agent is used in one of the constituent layers of the resulting silver halide photographic sensitive material, residual color is improved and high whiteness is obtd.
Patent JP-H04226865-A (JP)
Title: Sheet end polishing tool
Inventor: GERUDO AIZENBURATSUTERU
IPC: B24D13/16
Filed: 1991-06-26
Abstract: PURPOSE: To shorten changing time for a grinding plate by using a large area fixing medium which has self locking property and is replaceable as an adhesive means between a carrier and a supporting plate. CONSTITUTION: A supporting plate 10 on the opposite side of a mandrel 11 is provided with a mushroom-shaped elastic plastic tentacle 12 and the surface of a surface fixing tool 9 is formed. On a facing surface of the surface fixing tool 9, a circular disc carrier 13 of a separate grinding wheel 14 is disposed and the surface is formed by gauze 15 of loose warp loops. A grinding plate 16 overlapped in a fan shape is provided so as to form a grinding disc which is radially arrayed on the opposite side of the carrier 13 and the plate 16 is stuck to the surface of the carrier 13. The carrier 13 is made of textile fabrics of natural fibers, is processed by impregnated auxiliary and an excellent adhesive joining is made possible.