baber/WOPTO huggingface dataset:
Patent JP-H03169155-A (JP)
Title: Drive circuit for laser diode
Inventor: SHOJI MOTOHIRO
IPC: H01S5/042
Filed: 1989-11-28
Abstract: PURPOSE:To attain the correction at pulse drive in matching with an element characteristic of a laser diode by varying a leading differentiating time constant and a trailing differentiating time constant of an input signal so as to differentiate a drive pulse, generating the leading correction current and subtracting the current from the drive current. CONSTITUTION:One time constant is used both for a differentiating circuit charge characteristic and a discharge characteristic in a conventional drive circuit, and when a time constant is selected to correct a long overshoot, in the case of a short off-pulse, the correction current is in mismatching with the overshoot of the pulse. Then the time constant is made different from the leading and the trailing of a differentiating circuit 21 to select the correction time constant effecting on the time of the overshoot of a correction circuit 22 and the correction time constant with respect to the pulse pattern effect differently. Thus, in matching with the long overshoot for the leading time constant, since the correction current is matched with the pulse overshoot after short-off by means of the trailing time constant, the pulse drive in matching with the characteristic of the laser diode is corrected.
Patent JP-H01150428-A (JP)
Title: Production of precision casting mold
Inventor: HAYASHI TAKESHI
IPC: B22C9/04
Filed: 1987-12-08
Abstract: PURPOSE:To improve the surface quality of the cast articles of titanium and a titanium alloy by forming a zirconia coating film layer and a backup layer on a wax pattern, and then removing the wax pattern to form the title casting mold. CONSTITUTION:The wax pattern is firstly dipped in the slurry contg. fine zirconia powder, a water-soluble polymeric material, and a solvent. The pattern coated with the slurry is then dried to form the zirconia coating film layer 2 on the pattern. A zircon flower backup layer 3, a coarse mullite backup layer 4, etc., are formed on the zirconia coating film layer 2 by the technique used in the production of a shell casting mold, the wax is removed, and the product is finally sintered to form a casting mold. since the zirconia coating film layer 2 does not react with a titanium melt, the surface quality of the cast article of titanium or a titanium alloy is improved.
Patent JP-2001126786-A (JP)
Title: Inner core of normal temperature contractile shrinkable tube
Inventor: TOJO HIDEHIKO
IPC: B29C61/06
Filed: 1999-10-29
Abstract: PROBLEM TO BE SOLVED: To provide the inner core for a normal temperature shrinkable tube that does not turn into industrial waste. SOLUTION: This inner core 1 is made of paper, consisting of plant fibers. For example, a paper tape 5 is wound helically with the adjacent edges joined by an adhesive to produce a cylindrical form sealed. After being used, it can be burned and will not pollute the environment with harmful materials, unlike the plastic inner core.
Patent JP-H11256088-A (JP)
Title: Resin composition for alkali-soluble resist ink
Inventor: YOSHIDA HARUO
IPC: C09D11/033
Filed: 1998-10-29
Abstract: PROBLEM TO BE SOLVED: To provide a resist ink compsn. improved in storage stability, heat resistance, and electrical properties by incorporating a new crosslinking inhibitor into an alkali-soluble, active energy ray-curable resin compsn. useful for producing printed circuit boards, etc. SOLUTION: This resin compsn. contains (A) an active energy ray-curable resin which is prepd. by reacting a polyhydric-phenol-derived polyepoxy compd. with (meth)acrylic acid and reacting the resultant polyepoxy (meth)acrylate with a satd. or unsatd. polybasic acid anhydride and which has carboxyl groups on the side chains; (B) a photopolymn. initiator; (C) a polymerizable vinyl monomer and/or an org. solvent; and (D) a compd. having at least one dihydrobenzoxazine ring.
Patent JP-H03281089-A (JP)
Title: Welding alloy improved for material with high yield strength, and welding method therefor
Inventor: CHIYANNSAN CHIYAI
IPC: C22C38/00
Filed: 1990-11-16
Abstract: PURPOSE: To make it possible to maintain notch toughness at a high level by forming deposited metal of a copper alloy contg. specific weight % of carbon, manganese, titanium, silicon, nickel and oxygen. CONSTITUTION: A basic metal cored electrode 10 is constituted by filling alloying material particles 20, calcium fluoride particles 22 and fluorine-contg. polymer particles 24 into a sheath 12 in order to obtain the deposited alloy. A deposited metal bead of <=2 ppm hydrogen in the deposited metal, <=0.04 wt.% oxygen and about >=85,000 psi in yield strength is deposited on a steel workpiece by weld heat input of about <=130 kiloJoule per inch. The deposited metal is, thereupon, formed of the alloy contg., by weight, 0.03 to 0.09% carbon, 2.5 to 4.0% manganese, 0.01 to 0.05% titanium, about <=1.0% silicon, <=2.0% nickel and <=0.035% oxygen. As a result, the deposited alloy may be provided with the high yield strength having crack resistance.
Patent JP-H02154600-A (JP)
Title: Ultrasonic probe
Inventor: NAKAO NARITAKA
IPC: A61B8/00
Filed: 1988-12-07
Abstract: PURPOSE:To reduce oppressive sensation sustained by a patient by constituting to transmit and receive ultrasonic wave from the front surface of an electric acoustic sensing element with conduction from plural signal lines and forming the sensing element and a case into an edgeless shape. CONSTITUTION:This device is constituted that a sensing element 2 is oscillated with the conduction from each signal line 5 and the ultrasonic wave is transmitted and received from the front surface of the sensing element 2. The circumferential shape of the arranged sensing element 2 is formed into a round shape, an oval shape, or a polygonal shape of which adjacent sides make an obtuse angle and edges are rounded off and the opening part 90 of a case 9 is formed into a shape having almost same thickness along the circumference. Thus, when the ultrasonic probe is applied to patient's breast, no oppression due to an edge part is given, the oppressive sensation is greatly reduced, and the ultrasonic probe can be miniaturized.
Patent JP-H11126716-A (JP)
Title: Solenoid
Inventor: SAITO MOTOHIRO
IPC: H01F7/127
Filed: 1997-10-23
Abstract: PROBLEM TO BE SOLVED: To provide a solenoid for vertically moving a lamp back and forth by an internal structure for inclining and moving the operating direction of a movable iron core. SOLUTION: An inner diameter hole of a bobbin 4 is inclined and passed through, and an outer diameter is turned to a uniform outer diameter similarly to a general bobbin. A coil 2 is wound to the bobbin 4 in such a shape and a coil assembly is formed. The coil assembly is covered with a frame 3 of a magnetic body and a fixed iron core 1. In the meantime, on the sliding surface 6 of the inner diameter hole of the bobbin 4, the movable iron core 5 freely movable back and forth along an inclination direction is housed. For the movable iron core 5, a groove 8 is formed on the outer peripheral part and a spring 9 is housed there. For a spring 9, operation force for pressurizing the movable iron core 5 to the outside acts in a non-conductive state. Also, a hollow part 10 is formed at the front part of the movable iron core 5, and the lamp 11 is horizontally fixed to a front surface.  When this solenoid in such a structure is attached to an attaching surface 7, it is mounted similarly to a normal solenoid.
Patent JP-S63166363-A (JP)
Title: Image reader
Inventor: KIMURA HIROYUKI
IPC: H04N1/19
Filed: 1986-12-27
Abstract: PURPOSE:To simply and surely recognize the state of at each point of time of the operation of a picture reader by providing a pattern at a part of an original support member so as to form the image on a part of a photoelectric transducer, thereby its output signal to drive a display mans in the subscanning operation. CONSTITUTION:A film holder 17 is provided above a film stage 15 to load an original film 20 clipped by two glasses 18, 19. Moreover, A combline projection pattern 26 for confirming the operation of the film stage 15 is arranged to a position not giving interference with a pattern of the film 20 under the film holder 17. An LED lamp 27 for subscanning operation display repeats lighting/extinguishing in matching with the position of the comb-line projection patter in the film holder 17 so as to easily confirm the operation of the film stage 15. Since the comb-line projection pattern 26 is moved similarly to the original film 20 without fail, even if it is stopped unexpectedly, the operation is confirmed immediately.
Patent JP-H05147755-A (JP)
Title: Sheet feeding device
Inventor: UEDA KENJI
IPC: B65H7/04
Filed: 1991-11-25
Abstract: PURPOSE:To provide a sheet feeding device, which can prevent lag in feeding a particularly large size sheet immediately after setting of sheets using simple configuration with a lower sheet feed device. CONSTITUTION:A sheet feeding device includes a first sensor 18 to sense, that a bundle 2 of sheets is placed on a sheet feeding table 1, and a second sensor 19 which senses that the leading edge of the bundle lies near the position where a sheet feeder roller 5 is contacted by pressure with a separator pad 7. In case the first sensor 18 senses placing of bundle of sheets while the second sensor remains off sensing the leading edge of the bundle, control is made so that a calling roller 4 is rotated until the second sensor 19 makes sensing.
Patent JP-H01149001-A (JP)
Title: Colored optical glass lens
Inventor: KATO SUMIO
IPC: G02B1/10
Filed: 1987-12-07
Abstract: PURPOSE:To easily produce the title lens to a desired color by coating a synthetic resin on a specific optical glass lens to 1-50mu thickness and curing the coating, then dyeing the resin. CONSTITUTION:The synthetic resin is coated by a spin system or immersion system on the optical glass lens having 1,400-1,900nd refractive index, 30-80d resolving power and 1.0-5.0sp.gr. to 1-50mu thickness and is cured by heat or photosetting. The lens is immersed in a bath prepd. by dissolving a dyeing agent after the curing and is thereby dyed. The lens colored to the assigned and desired color is thereby produced in a short period of time.
Patent JP-H11123881-A (JP)
Title: Melting type thermal transfer recording paper
Inventor: KIKUCHI YUJI
IPC: B41M5/52
Filed: 1997-10-23
Abstract: PROBLEM TO BE SOLVED: To prevent transfer of a lubricant and also realize a sufficient paper feeding-delivering performance by making a back coat layer contain ethylene tetrafluoride resin particles of which the average particle size is larger than the pore size of a porous layer or the groove width of a multi-groove layer and than the thickness of the back coat layer. SOLUTION: Melting type thermal transfer recording paper (recording paper) 2 is prepared by forming a porous layer 2a on one surface side of a base 2b and a back coat layer 2c on the other side. Herein ethylene tetrafluoride resin particles of which the average particle size is larger than the pore size of the porous layer 2a or the groove width of a multi-groove layer and than the thickness of the back coat layer 2c are added as lubricants to the back coat layer 2c. The recording paper 2 and an ink ribbon 1 are laid on each other and carried and a thermal head 3 presses a platen roller 4, while a heating resistor of the thermal head 3 is heated. Thereby an ink layer 1a containing a color material is transferred from the ink ribbon 1 onto the porous layer 2a formed on the recording paper 2.
Patent JP-H11124859-A (JP)
Title: Piling structure of square timber, etc., and component thereof
Inventor: KASAMATSU KAZUICHI
IPC: A01G9/28
Filed: 1997-10-22
Abstract: PROBLEM TO BE SOLVED: To provide the piling-up structure of a square timber, etc., capable of easily constructing a retaining wall, a fence, a flower bed, a fine shape, etc., by alternately piling up a plurality of stage of the square timbers made of wood and circular timbers crosswise without using bolts, etc. SOLUTION: The piling-up structure of the square timbers, etc., in which the square timbers 10, 12 made of wood, etc., are stuck at a plurality of stages crosswise and alternately so that diagonals on the cross sections of the square timbers are directed in the vertical direction, and each crossed section is fitted mutually by forming V-shaped notched sections, in which the corner sections of the square timbers 10, 12 on the other side can be fitted to either one of the square timbers 12, 10 on the mutually contacted upper stage side or lower stage sides, space sections surrounded by the square timbers 10, 12 are filled with soils and stones 14, etc., and a retaining wall, a fence, a flower bed, a fine shape, etc., can be built, is constituted.  The circular material of wood, etc., in which a cross section is fabricated circularly, is often used in place of the square timber while a notched section having an arcuate sectional contour is often formed in place of the V-shaped notched section.
Patent JP-S63161167-A (JP)
Title: Formation of film by ion beam sputtering
Inventor: SASAKI KENICHI
IPC: C23C14/46
Filed: 1986-12-24
Abstract: PURPOSE:To simultaneously carry out sputtering and activation with single ion source by placing a substrate to be treated on the rear side of flat a plate- shaped target having plural holes in the perpendicular direction and by project ing ion beams on the surface of the target from the ion source. CONSTITUTION:A graphite target 11 having plural holes is held by a target holder 12 on one side of a sputtering chamber 10 and a substrate 5 to be treated is set on a substrate holder 13 which is rotated by a motor 14 on the rear side of the target 11. An ion source 15 for projecting Ar and H ions is placed opposite to the target 11. The chamber 10 is evacuated, gaseous Ar and H2 are introduced into the ion source 15 and electric current is supplied to project ion beams on the target 11. The target 11 is sputtered to deposit graphite on the substrate 5 and resputtering is carried out with ion beams passed through the holes in the target 11. Thus, a film is formed with high reproducibility with such a simple device.
Patent JP-H05142821-A (JP)
Title: Electrophotographic sensitive body
Inventor: MIYAMOTO EIICHI
IPC: G03G5/06
Filed: 1991-11-26
Abstract: PURPOSE:To provide an electrophotographic sensitive body having high sensitivity and excellent durability. CONSTITUTION:A photosensitive layer containing an azo compound represented by a formula is provided on a conductive base material. In the formula, R<1> represents hydrogen atom, a halogen atom, alkyl group, alkoxy group, aryl group, amino group, cyano group, nitro group, or sulfoxide group, and A represents a coupler residue having acceptor property.
Patent JP-H08140466-A (JP)
Title: Grain tank made of resin
Inventor: IWAI HARUO
IPC: A01F12/60
Filed: 1994-11-18
Abstract: PURPOSE: To provide a grain tank having strength, capable of withstanding also to impact from the outside and molded from a resin and having simple structure. CONSTITUTION: This grain tank is obtained by carrying out blow molding of a grain tank 2 loaded on a combine harvester, etc., molding the parting line (L) from vertically cut outside part (2a) which moved onto the outside and the inner side (2b), forming wall thickness (T) of the outside part (2a) thick and forming the wall thickness (t) of the inner side part (2b) thin and forming recessed groove (4) in the vertical direction in the inner side part (2b) and putting threshed grain lifting cylinder (3) in inserted state into the recessed groove (4) and protruding the parting line (L) to the outside in fin-like shape and attaching the fin part (6) to a support (7) which is rotatable to a vertical cylindrical part (5a) of a discharge auger.
Patent JP-H03171440-A (JP)
Title: Information recording medium and method of optical information recording
Inventor: SAWANO MITSURU
IPC: G11B7/2407
Filed: 1989-11-29
Abstract: PURPOSE:To obtain such an information recording medium that realizes stable tracking and has excellent performance with little error by forming grooves of specified V-shaped cross section and using a specified cyanine dye. CONSTITUTION:On the grooved surface of a substrate 2, there is formed a recording layer 3 containing a dye which enables recording or reproducing of information with laser light. The groove 6 has such a V-shape cross section that its half width is 0.3 - 0.7 time as much as the half-value diameter of the laser beam for reproducing and the maximum depth of the groove is 700 - 1,700Angstrom . The dye is a cyanine dye expressed by formula I, wherein R<1> and R<2> are alkyl groups having 1 - 3 carbon number, R<3> is an alkyl group of 1 - 4 carbon number, alkoxyalkyl group of 1 - 4 carbon number, or fluoroalky group of 1 - 4 carbon number, and X<-> is an anion. By this method, such an information recording medium can be obtained that enables stable tracking and has excellent performance with little error.
Patent JP-H06160754-A (JP)
Title: Rotary polygon mirror fitting device
Inventor: HORINO YASUO
IPC: G02B26/12
Filed: 1992-11-19
Abstract: PURPOSE:To provide a light deflector which eliminates the distorsion of a reflecting mirror surface and which can accurately execute scanning with a laser light beam. CONSTITUTION:A rotary polygon mirror 4 is mounted on a mirror pedestal 3-1 formed on a rotating sleeve 3. On the upper surface of the mirror 4, plural projections 10 which interpose the mirror 4 through a cap flange 6 and tighten and fix it by a screw and which are provided with an acute-angle tip part on the surfaces faced to the mirror 4 of the flange 6 are provided. Then, the mirror 4 is fixed by plastically deforming the surface of the mirror 4 by the projections 10 in accordance with tightening force impressed between the flange 6 and the pedestal 3-1. Therefore, the tightening pressure of the screw added on the mirror 4 is reduced and the flatness of the reflecting mirror surface of the mirror 4 is accurately maintained. Besides, the reflecting angle of the laser light beam can be accurately maintained.
Patent JP-S63165243-A (JP)
Title: Roller cleaning method
Inventor: OISHI CHIKASHI
IPC: B65H20/00
Filed: 1986-12-26
Abstract: PURPOSE:To rapidly carry out the cleaning of the surface of a roller with a simple operation by either differentiating the circumferential velocity of a pair of rollers which interposingly hold a conveyed sheet or rotating them in the mutually reverse direction. CONSTITUTION:When a switch 1 is turned off, a current fails to flow in a coil 5 and an iron core 6 is shifted in the E direction by means of a spring 7 and separated from gear 9. A roller 12A which is externally driven by means of a gear 13 drives a roller 12B, whereas, the gear 9 is idly rotated by means of a bearing 10. When the switch 1 is turned on, the iron core 6 is shifted in the F direction due to the coil 5 and brought into pressure contact with the gear 9, the rotation of which is transmitted to the shaft of the roller 12B via the iron core 6 and a shaft 8B, forcedly driving the roller 12B. The gear ratio is different between gears 11 and 9 causing the roller 12B to be driven at a different circumferential velocity from that of the gear 12A. Thereby, the cleaning of the rollers 12B and 12A can be simply carried out without using any chemical.
Patent JP-S63161537-A (JP)
Title: Method and apparatus for track error detection
Inventor: KIMURA YASUO
IPC: G11B7/09
Filed: 1986-12-25
Abstract: PURPOSE:To decrease the production of an offset in a track error signal by detecting a track error from the light intensity difference of the light beam incident in 1st and 2nd regions satisfying specific conditions among light beams. CONSTITUTION:Let a diameter of an objective lens be F, a focus be (f), a track pitch of a pit or pre-group of an optical recording medium be P, a wavelength of a light source be lambda, a quantity satisfying the relation of 0<=delta<=(maximum moving distance of objective lens in the track direction of optical recording medium) be delta, the beam diameter of the reflected light from optical recording medium via an objective lens be (d), the axis including the optical axis of the light beam in parallel with the arranging direction of the optical recording medium tracks in the vertical cross section of the light beam be X axis, and the axis perpendicular to the X axis and including the optical axis of the light beam be Y axis, then the track error is detected from the light intensity difference of the light beam incident in the 2nd region satisfying the condition of inequality II and the 1st region satisfying the condition of inequality I in the light beams. Thus, no offset is caused in the track error signal.
Patent JP-H01151311-A (JP)
Title: Lc filter
Inventor: KANEKO TOSHIMI
IPC: H03H7/075
Filed: 1987-12-08
Abstract: PURPOSE:To improve a filtering characteristic by forming a line electrode so as to extend from one electrode pattern on a plane on one side of a dielectric substrate along the neighborhood of the outer edge of another electrode and supply a distributed constant by an LC at a desired position and to extend. CONSTITUTION:At the surface side of the dielectric substrate 1, a linear line electrode 21 is formed so as to extend from the electrode pattern 16 connected electrically to a through hole 15 and to extend along the neighborhood of the outer edge of a capacitor electrode pattern 4 and an inductance electrode pattern 10. And by selecting the size and position of the line electrode appropriately so as to form an attenuation pole by an LC series element consisting of an inductance La and a capacitor Ca, it is possible to increase a damping quantity at a frequency side higher than that of a passing band area. In such a way, the filtering characteristic can be improved.
Patent JP-H07159682-A (JP)
Title: Focus detecting camera
Inventor: KUSAKA YOSUKE
IPC: G02B7/34
Filed: 1993-12-10
Abstract: PURPOSE:To enhance probability that a photodetector part whose projected image width is small catches a subject in the case the subject is in a focus frame in a focus detecting device for a camera. CONSTITUTION:This camera is provided with a photographing optical system 3 for forming the primary image of the subject on a photographic image plane, a focus detecting optical system 7 reforming the primary image as a secondary image, an image sensor 8 consisting of a 1st photodetector part 9 and the 2nd photodetector part 10 which receive the secondary image, and a focus detecting arithmetic means 12 detecting the focusing state of the photographing optical system based on output from the image sensor. As for a projected image obtained by reversely projecting the image of the 1st and the 2nd photodetector parts on the scheduled focusing surface by an image reforming element; one-dimensional direction of the projected image of both of them is nearly in parallel with the long side or the short side of the photographic image plane, and the width (W2) of the picture element of the 2nd photodetector part is larger than the width (W1) of the picture element of the 1st photodetector part in a direction perpendicular to the one-dimensional direction, and the projected image of the 1st photodetector part is set on a lower side than the projected image of the 2nd photodetector part in the direction perpendicular to the photographic image plane.